Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Pittsburgh, PA
Issued by NWS Pittsburgh, PA
727
FNUS51 KPBZ 201703
FWFPBZ
Fire Weather Planning Forecast
National Weather Service Pittsburgh PA
1203 PM EST Tue Jan 20 2026
.DISCUSSION...
High pressure will keep clear and cold conditions in place today
and into tonight. By tomorrow, a shortwave will bring a chance of
rain and snow to the area with some minor accumulation to the
north.
OHZ039-210930-
Tuscarawas-
Including the cities of New Philadelphia and Dover
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow Snow/Rain None
Chance Precip (%) 0 50 30 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 9 (+6) 37 (+20) 26 34
RH % (24h trend) 58 (-17) 45 (+5) 89 47
Wind 20ft/early(mph) Lgt/Var S 10 G23 SW 11 G20 W 10 G20
Wind 20ft/late(mph) S 5 SW 13 G23 SW 9 G19 W 10 G19
Precip Amount 0.00 0.04 0.02 0.00
Precip Duration 2 1
Precip Begin 7 AM 6 PM
Precip End 5 PM 1 AM
Mixing Hgt(m-agl/msl) 930 1390
Mixing Hgt(ft-agl/msl) 3060 4560
Transport Wnd (mph) SW 30 W 23
Vent Rate (kt-ft) 92590 117560
Category Day 4 4
Inversion 6pm 22F/9am 4am 29F/5am
Dispersion 5 5
Max ADI Early 5 Very Poor 64 Good 23 Fair 70 Good
Max ADI Late 11 Poor 77 Good 25 Fair 79 Good
Max LVORI Early 3 2 4 3
Max LVORI Late 3 3 4 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ040-210930-
Carroll-
Including the cities of Carrollton and Malvern
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow Snow/Rain None
Chance Precip (%) 0 50 50 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 9 (+7) 36 (+20) 26 33
RH % (24h trend) 57 (-18) 46 (+5) 89 47
Wind 20ft/early(mph) SW 5 S 10 G23 SW 11 G21 W 12 G21
Wind 20ft/late(mph) S 6 SW 13 G23 SW 11 G20 W 11 G21
Precip Amount 0.00 0.04 0.03 0.00
Precip Duration 2 1
Precip Begin 8 AM Continuing
Precip End Continuing 1 AM
Mixing Hgt(m-agl/msl) 880 1360
Mixing Hgt(ft-agl/msl) 2880 4480
Transport Wnd (mph) SW 31 W 25
Vent Rate (kt-ft) 98430 135030
Category Day 4 4
Inversion 6pm 22F/9am None None
Dispersion 5 5
Max ADI Early 5 Very Poor 56 Gen Good 23 Fair 78 Good
Max ADI Late 11 Poor 72 Good 26 Fair 77 Good
Max LVORI Early 3 2 4 3
Max LVORI Late 3 3 4 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ041-210930-
Columbiana-
Including the cities of East Liverpool, Salem, and Columbiana
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow Snow/Rain None
Chance Precip (%) 0 60 60 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 8 (+6) 35 (+19) 26 33
RH % (24h trend) 58 (-18) 46 (+4) 88 48
Wind 20ft/early(mph) SW 5 S 9 G23 SW 11 G20 W 12 G22
Wind 20ft/late(mph) S 6 SW 13 G23 SW 10 G21 W 11 G21
Precip Amount 0.00 0.04 0.04 0.00
Precip Duration 2 5
Precip Begin 7 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 910 1400
Mixing Hgt(ft-agl/msl) 2980 4580
Transport Wnd (mph) SW 32 W 26
Vent Rate (kt-ft) 107520 143340
Category Day 4 5
Inversion 6pm 21F/9am 9pm 28F/4am
Dispersion 5 5
Max ADI Early 5 Very Poor 55 Gen Good 24 Fair 82 Good
Max ADI Late 9 Poor 75 Good 25 Fair 82 Good
Max LVORI Early 3 2 4 3
Max LVORI Late 3 3 4 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ048-210930-
Coshocton-
Including the city of Coshocton
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow Snow/Rain None
Chance Precip (%) 0 40 20 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 10 (+8) 37 (+20) 25 34
RH % (24h trend) 57 (-19) 46 (+6) 92 48
Wind 20ft/early(mph) Lgt/Var S 9 G22 SW 9 G19 W 9 G19
Wind 20ft/late(mph) S 5 SW 12 G22 SW 9 G18 W 9 G18
Precip Amount 0.00 0.02 0.01 0.00
Precip Duration 2 1
Precip Begin 7 AM 7 PM
Precip End 6 PM 1 AM
Mixing Hgt(m-agl/msl) 940 1390
Mixing Hgt(ft-agl/msl) 3070 4550
Transport Wnd (mph) SW 32 W 22
Vent Rate (kt-ft) 90750 113860
Category Day 4 4
Inversion 6pm 22F/9am 8pm 28F/4am
Dispersion 5 5
Max ADI Early 5 Very Poor 65 Good 23 Fair 78 Good
Max ADI Late 8 Poor 78 Good 25 Fair 87 Good
Max LVORI Early 3 2 4 3
Max LVORI Late 3 3 4 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ049-210930-
Harrison-
Including the city of Cadiz
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow Snow/Rain None
Chance Precip (%) 0 60 50 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 10 (+7) 37 (+19) 27 34
RH % (24h trend) 55 (-17) 45 (+8) 90 44
Wind 20ft/early(mph) Lgt/Var S 9 G23 SW 11 G22 SW 11 G22
Wind 20ft/late(mph) S 6 SW 13 G25 SW 10 G20 W 10 G21
Precip Amount 0.00 0.05 0.04 0.00
Precip Duration 2 1
Precip Begin 10 AM Continuing
Precip End Continuing 1 AM
Mixing Hgt(m-agl/msl) 870 1380
Mixing Hgt(ft-agl/msl) 2850 4540
Transport Wnd (mph) SW 31 W 24
Vent Rate (kt-ft) 96780 127940
Category Day 4 4
Inversion 6pm 22F/9am None None
Dispersion 5 5
Max ADI Early 5 Very Poor 55 Gen Good 25 Fair 75 Good
Max ADI Late 8 Poor 71 Good 26 Fair 78 Good
Max LVORI Early 2 2 4 3
Max LVORI Late 2 3 4 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ050-210930-
Jefferson OH-
Including the city of Steubenville
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow Snow/Rain None
Chance Precip (%) 0 60 60 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 10 (+7) 37 (+20) 28 34
RH % (24h trend) 54 (-17) 45 (+9) 88 43
Wind 20ft/early(mph) Lgt/Var S 9 G23 SW 11 G22 SW 11 G22
Wind 20ft/late(mph) S 5 SW 13 G25 SW 11 G20 W 11 G21
Precip Amount 0.00 0.04 0.05 0.00
Precip Duration 3 5
Precip Begin 10 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 900 1430
Mixing Hgt(ft-agl/msl) 2940 4710
Transport Wnd (mph) SW 31 W 25
Vent Rate (kt-ft) 101090 142970
Category Day 4 4
Inversion 6pm 21F/9am None None
Dispersion 5 5
Max ADI Early 5 Very Poor 53 Gen Good 26 Fair 78 Good
Max ADI Late 9 Poor 73 Good 27 Fair 78 Good
Max LVORI Early 2 2 4 3
Max LVORI Late 2 3 4 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ057-210930-
Muskingum-
Including the city of Zanesville
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow Snow/Rain None
Chance Precip (%) 0 40 20 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 10 (+6) 38 (+19) 27 35
RH % (24h trend) 54 (-21) 44 (+6) 91 46
Wind 20ft/early(mph) Lgt/Var S 8 G22 SW 9 G20 W 9 G19
Wind 20ft/late(mph) Lgt/Var SW 12 G23 SW 8 G18 W 8 G18
Precip Amount 0.00 0.03 0.00 0.00
Precip Duration 1 1
Precip Begin 9 AM 7 PM
Precip End 5 PM 1 AM
Mixing Hgt(m-agl/msl) 910 1340
Mixing Hgt(ft-agl/msl) 2980 4390
Transport Wnd (mph) SW 31 W 22
Vent Rate (kt-ft) 89940 111780
Category Day 4 4
Inversion 6pm 23F/9am 7pm 29F/4am
Dispersion 5 5
Max ADI Early 5 Very Poor 62 Good 23 Fair 87 Good
Max ADI Late 8 Poor 74 Good 25 Fair 86 Good
Max LVORI Early 2 2 4 4
Max LVORI Late 2 3 4 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ058-210930-
Guernsey-
Including the city of Cambridge
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow Snow/Rain None
Chance Precip (%) 0 50 30 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 11 (+7) 38 (+19) 28 35
RH % (24h trend) 52 (-24) 43 (+8) 91 44
Wind 20ft/early(mph) Lgt/Var S 8 G23 SW 9 G21 W 9 G20
Wind 20ft/late(mph) Lgt/Var SW 11 G23 SW 8 G19 W 8 G20
Precip Amount 0.00 0.04 0.02 0.00
Precip Duration 1 1
Precip Begin 10 AM 7 PM
Precip End 6 PM 1 AM
Mixing Hgt(m-agl/msl) 920 1390
Mixing Hgt(ft-agl/msl) 3010 4570
Transport Wnd (mph) SW 31 W 22
Vent Rate (kt-ft) 79430 120650
Category Day 4 4
Inversion 6pm 23F/9am 9pm 30F/4am
Dispersion 5 5
Max ADI Early 5 Very Poor 57 Gen Good 23 Fair 82 Good
Max ADI Late 8 Poor 72 Good 23 Fair 86 Good
Max LVORI Early 2 2 4 4
Max LVORI Late 2 3 4 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ059-210930-
Belmont-
Including the cities of Martins Ferry and St. Clairsville
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow Snow/Rain None
Chance Precip (%) 0 50 50 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 10 (+6) 38 (+19) 29 36
RH % (24h trend) 53 (-21) 44 (+9) 93 44
Wind 20ft/early(mph) Lgt/Var S 9 G24 SW 11 G23 SW 11 G22
Wind 20ft/late(mph) S 5 SW 13 G25 SW 11 G21 W 10 G22
Precip Amount 0.00 0.06 0.04 0.00
Precip Duration 1 2
Precip Begin 11 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 880 1410
Mixing Hgt(ft-agl/msl) 2880 4620
Transport Wnd (mph) SW 32 W 24
Vent Rate (kt-ft) 85530 128130
Category Day 4 4
Inversion 6pm 23F/9am 8pm 31F/6am
Dispersion 5 5
Max ADI Early 5 Very Poor 54 Gen Good 25 Fair 74 Good
Max ADI Late 9 Poor 73 Good 27 Fair 75 Good
Max LVORI Early 2 2 4 4
Max LVORI Late 2 3 4 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ068-210930-
Noble-
Including the city of Caldwell
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow Snow/Rain None
Chance Precip (%) 0 40 40 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 12 (+9) 38 (+18) 29 37
RH % (24h trend) 49 (-29) 42 (+8) 94 43
Wind 20ft/early(mph) Lgt/Var S 8 G22 SW 9 G21 SW 9 G19
Wind 20ft/late(mph) Lgt/Var SW 10 G23 SW 8 G19 W 8 G19
Precip Amount 0.00 0.05 0.02 0.00
Precip Duration 1 1
Precip Begin 7 AM Continuing
Precip End Continuing 1 AM
Mixing Hgt(m-agl/msl) 880 1400
Mixing Hgt(ft-agl/msl) 2880 4610
Transport Wnd (mph) SW 30 W 22
Vent Rate (kt-ft) 72150 113770
Category Day 4 4
Inversion 6pm 23F/9am 9pm 31F/4am
Dispersion 5 5
Max ADI Early 5 Very Poor 50 Gen Good 22 Fair 66 Good
Max ADI Late 8 Poor 68 Good 23 Fair 88 Good
Max LVORI Early 2 2 4 4
Max LVORI Late 2 3 5 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ069-210930-
Monroe-
Including the city of Woodsfield
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow Snow/Rain None
Chance Precip (%) 0 50 50 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 11 (+6) 38 (+18) 29 37
RH % (24h trend) 51 (-25) 43 (+9) 94 42
Wind 20ft/early(mph) Lgt/Var S 7 G23 SW 9 G23 SW 9 G21
Wind 20ft/late(mph) Lgt/Var SW 10 G25 SW 9 G21 W 8 G21
Precip Amount 0.00 0.05 0.03 0.00
Precip Duration 1 2
Precip Begin 7 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 870 1430
Mixing Hgt(ft-agl/msl) 2840 4700
Transport Wnd (mph) SW 28 W 22
Vent Rate (kt-ft) 89400 120600
Category Day 4 4
Inversion 6pm 27F/10am 9pm 32F/4am
Dispersion 5 5
Max ADI Early 5 Very Poor 45 Gen Good 22 Fair 65 Good
Max ADI Late 6 Very Poor 63 Good 23 Fair 91 Good
Max LVORI Early 2 2 4 4
Max LVORI Late 2 3 5 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ007-210930-
Mercer-
Including the cities of Sharon, Hermitage, and Grove City
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow Snow Snow
Chance Precip (%) 0 80 70 20
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 6 (+5) 34 (+20) 24 29
RH % (24h trend) 70 (-11) 53 (-1) 97 58
Wind 20ft/early(mph) SW 5 S 10 G22 SW 10 G18 W 13 G22
Wind 20ft/late(mph) S 6 SW 13 G22 SW 10 G20 W 12 G23
Precip Amount 0.00 0.08 0.07 0.01
Precip Duration 5 6 1
Precip Begin 7 AM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 810 1380
Mixing Hgt(ft-agl/msl) 2640 4530
Transport Wnd (mph) SW 28 W 28
Vent Rate (kt-ft) 97590 130300
Category Day 4 5
Inversion 6pm 18F/9am 7pm 26F/4am
Dispersion 5 5
Max ADI Early 5 Very Poor 52 Gen Good 24 Fair 83 Good
Max ADI Late 12 Poor 61 Good 26 Fair 83 Good
Max LVORI Early 3 2 4 4
Max LVORI Late 3 3 5 2
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ008-210930-
Venango-
Including the cities of Oil City and Franklin
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow Snow Snow
Chance Precip (%) 0 80 70 20
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 6 (+7) 33 (+20) 23 29
RH % (24h trend) 71 (-14) 56 (0) 98 61
Wind 20ft/early(mph) Lgt/Var S 8 G20 SW 9 G19 SW 11 G22
Wind 20ft/late(mph) S 5 SW 10 G20 SW 9 G20 W 10 G22
Precip Amount 0.00 0.10 0.09 0.01
Precip Duration 4 6 1
Precip Begin 7 AM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 870 1530
Mixing Hgt(ft-agl/msl) 2840 5030
Transport Wnd (mph) SW 29 W 31
Vent Rate (kt-ft) 100650 154660
Category Day 4 5
Inversion 6pm 16F/9am None None
Dispersion 5 5
Max ADI Early 7 Poor 47 Gen Good 26 Fair 95 Good
Max ADI Late 8 Poor 64 Good 28 Fair 96 Good
Max LVORI Early 3 3 4 4
Max LVORI Late 3 4 4 2
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ009-210930-
Forest-
Including the city of Tionesta
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow Snow Snow
Chance Precip (%) 0 80 70 20
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 5 (+5) 32 (+20) 23 29
RH % (24h trend) 69 (-14) 54 (0) 99 59
Wind 20ft/early(mph) Lgt/Var S 6 G20 SW 8 G19 SW 9 G23
Wind 20ft/late(mph) Lgt/Var SW 8 G21 SW 8 G20 W 9 G23
Precip Amount 0.00 0.14 0.12 0.01
Precip Duration 6 6 1
Precip Begin 7 AM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 900 1590
Mixing Hgt(ft-agl/msl) 2950 5200
Transport Wnd (mph) SW 29 W 33
Vent Rate (kt-ft) 106950 154810
Category Day 4 5
Inversion 8pm 15F/9am None None
Dispersion 5 5
Max ADI Early 9 Poor 46 Gen Good 25 Fair 105 Very Good
Max ADI Late 6 Very Poor 67 Good 29 Fair 102 Very Good
Max LVORI Early 3 3 4 4
Max LVORI Late 3 3 4 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ013-210930-
Lawrence-
Including the cities of New Castle and Ellwood City
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow Snow/Rain None
Chance Precip (%) 0 70 70 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 7 (+6) 35 (+19) 25 32
RH % (24h trend) 64 (-16) 49 (+3) 93 53
Wind 20ft/early(mph) Lgt/Var S 8 G19 SW 9 G18 W 11 G20
Wind 20ft/late(mph) Lgt/Var SW 11 G20 SW 9 G19 W 10 G20
Precip Amount 0.00 0.03 0.05 0.00
Precip Duration 4 6
Precip Begin 7 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 870 1400
Mixing Hgt(ft-agl/msl) 2850 4590
Transport Wnd (mph) SW 29 W 26
Vent Rate (kt-ft) 98050 129160
Category Day 4 5
Inversion 6pm 19F/9am 10pm 27F/4am
Dispersion 5 5
Max ADI Early 5 Very Poor 49 Gen Good 23 Fair 81 Good
Max ADI Late 8 Poor 64 Good 25 Fair 83 Good
Max LVORI Early 3 2 4 4
Max LVORI Late 3 3 4 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ014-210930-
Butler-
Including the city of Butler
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow Snow/Rain None
Chance Precip (%) 0 80 80 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 6 (+6) 35 (+20) 24 33
RH % (24h trend) 67 (-14) 51 (+4) 96 54
Wind 20ft/early(mph) Lgt/Var S 7 G18 SW 9 G19 W 11 G22
Wind 20ft/late(mph) Lgt/Var SW 11 G21 SW 9 G19 W 10 G21
Precip Amount 0.00 0.05 0.07 0.00
Precip Duration 4 7
Precip Begin 8 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 910 1430
Mixing Hgt(ft-agl/msl) 2980 4700
Transport Wnd (mph) SW 29 W 30
Vent Rate (kt-ft) 94180 144690
Category Day 4 5
Inversion 6pm 22F/10am None None
Dispersion 5 5
Max ADI Early 5 Very Poor 45 Gen Good 24 Fair 86 Good
Max ADI Late 8 Poor 67 Good 26 Fair 88 Good
Max LVORI Early 3 2 5 4
Max LVORI Late 3 3 4 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ015-210930-
Clarion-
Including the city of Clarion
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow Snow/Rain Snow
Chance Precip (%) 0 80 80 10
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 5 (+5) 34 (+21) 24 30
RH % (24h trend) 70 (-13) 53 (+1) 98 59
Wind 20ft/early(mph) Lgt/Var S 7 G19 SW 9 G20 SW 10 G23
Wind 20ft/late(mph) Lgt/Var SW 9 G21 SW 9 G21 W 10 G23
Precip Amount 0.00 0.10 0.10 0.01
Precip Duration 5 7 1
Precip Begin 9 AM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 920 1480
Mixing Hgt(ft-agl/msl) 3030 4860
Transport Wnd (mph) SW 29 W 31
Vent Rate (kt-ft) 92720 150130
Category Day 4 5
Inversion 6pm 15F/9am None None
Dispersion 5 5
Max ADI Early 6 Very Poor 43 Gen Good 25 Fair 94 Good
Max ADI Late 6 Very Poor 69 Good 28 Fair 95 Good
Max LVORI Early 3 3 4 4
Max LVORI Late 3 3 4 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ016-210930-
Jefferson PA-
Including the cities of Punxsutawney and Brookville
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow Snow/Rain None
Chance Precip (%) 0 80 80 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 5 (+6) 34 (+22) 25 31
RH % (24h trend) 67 (-14) 50 (-1) 96 57
Wind 20ft/early(mph) SW 5 S 6 G19 SW 10 G21 SW 12 G24
Wind 20ft/late(mph) Lgt/Var SW 10 G21 SW 11 G22 W 11 G24
Precip Amount 0.00 0.12 0.13 0.00
Precip Duration 5 8
Precip Begin 10 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 950 1460
Mixing Hgt(ft-agl/msl) 3120 4800
Transport Wnd (mph) SW 28 W 30
Vent Rate (kt-ft) 90660 164120
Category Day 4 5
Inversion 6pm 19F/10am None None
Dispersion 5 5
Max ADI Early 6 Very Poor 40 Fair 27 Fair 97 Good
Max ADI Late 5 Very Poor 65 Good 29 Fair 96 Good
Max LVORI Early 3 3 4 4
Max LVORI Late 3 3 4 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ020-210930-
Beaver-
Including the cities of Aliquippa, Beaver Falls, Ambridge,
and Monaca
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow Snow/Rain None
Chance Precip (%) 0 70 70 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 9 (+6) 36 (+19) 27 33
RH % (24h trend) 58 (-17) 47 (+6) 89 47
Wind 20ft/early(mph) Lgt/Var S 7 G21 SW 9 G19 W 10 G21
Wind 20ft/late(mph) Lgt/Var SW 11 G23 SW 9 G20 W 10 G21
Precip Amount 0.00 0.03 0.06 0.00
Precip Duration 3 6
Precip Begin 9 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 950 1450
Mixing Hgt(ft-agl/msl) 3120 4770
Transport Wnd (mph) SW 30 W 26
Vent Rate (kt-ft) 110480 139260
Category Day 4 5
Inversion 6pm 20F/9am None None
Dispersion 5 5
Max ADI Early 5 Very Poor 49 Gen Good 25 Fair 84 Good
Max ADI Late 8 Poor 72 Good 24 Fair 84 Good
Max LVORI Early 3 2 4 3
Max LVORI Late 3 3 4 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ021-210930-
Allegheny-
Including the city of Pittsburgh Metro Area
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow Snow/Rain None
Chance Precip (%) 0 70 70 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 9 (+5) 38 (+21) 29 36
RH % (24h trend) 59 (-14) 48 (+7) 93 49
Wind 20ft/early(mph) Lgt/Var S 7 G20 SW 11 G21 SW 12 G22
Wind 20ft/late(mph) Lgt/Var SW 13 G23 SW 11 G20 W 11 G22
Precip Amount 0.00 0.03 0.05 0.00
Precip Duration 4 6
Precip Begin 10 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 960 1550
Mixing Hgt(ft-agl/msl) 3130 5090
Transport Wnd (mph) SW 30 W 28
Vent Rate (kt-ft) 94230 147340
Category Day 4 5
Inversion 6pm 25F/10am None None
Dispersion 5 5
Max ADI Early 5 Very Poor 44 Gen Good 26 Fair 84 Good
Max ADI Late 7 Poor 72 Good 24 Fair 87 Good
Max LVORI Early 3 2 4 4
Max LVORI Late 3 3 4 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ022-210930-
Armstrong-
Including the cities of Kittanning and Ford City
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow Snow/Rain None
Chance Precip (%) 0 80 70 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 6 (+4) 36 (+20) 25 34
RH % (24h trend) 67 (-12) 50 (+4) 97 54
Wind 20ft/early(mph) Lgt/Var S 6 G18 SW 10 G20 SW 11 G23
Wind 20ft/late(mph) Lgt/Var SW 10 G22 SW 10 G21 W 10 G23
Precip Amount 0.00 0.06 0.09 0.00
Precip Duration 5 6
Precip Begin 10 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 930 1510
Mixing Hgt(ft-agl/msl) 3060 4960
Transport Wnd (mph) SW 26 W 29
Vent Rate (kt-ft) 94150 165370
Category Day 4 5
Inversion 6pm 22F/10am None None
Dispersion 5 5
Max ADI Early 5 Very Poor 40 Fair 26 Fair 85 Good
Max ADI Late 5 Very Poor 64 Good 26 Fair 90 Good
Max LVORI Early 3 3 5 4
Max LVORI Late 3 3 5 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ029-210930-
Washington-
Including the cities of Washington and Canonsburg
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow Snow/Rain None
Chance Precip (%) 0 70 70 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 9 (+5) 39 (+21) 29 37
RH % (24h trend) 55 (-18) 46 (+8) 92 45
Wind 20ft/early(mph) Lgt/Var S 9 G22 SW 12 G22 SW 13 G22
Wind 20ft/late(mph) Lgt/Var SW 14 G25 SW 12 G21 W 12 G22
Precip Amount 0.00 0.04 0.06 0.00
Precip Duration 4 6
Precip Begin 7 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 950 1540
Mixing Hgt(ft-agl/msl) 3130 5050
Transport Wnd (mph) SW 33 W 26
Vent Rate (kt-ft) 101140 149390
Category Day 4 5
Inversion 6pm 27F/10am None None
Dispersion 5 5
Max ADI Early 5 Very Poor 53 Gen Good 27 Fair 81 Good
Max ADI Late 8 Poor 81 Good 22 Fair 83 Good
Max LVORI Early 2 2 4 4
Max LVORI Late 2 3 4 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ031-210930-
Greene-
Including the city of Waynesburg
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow/Rain Snow/Rain None
Chance Precip (%) 0 60 70 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 10 (+6) 40 (+22) 30 37
RH % (24h trend) 53 (-23) 47 (+9) 94 46
Wind 20ft/early(mph) Lgt/Var S 7 G22 SW 11 G22 SW 11 G22
Wind 20ft/late(mph) Lgt/Var SW 12 G24 SW 10 G21 W 10 G21
Precip Amount 0.00 0.04 0.08 0.00
Precip Duration 4 6
Precip Begin 7 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 980 1540
Mixing Hgt(ft-agl/msl) 3210 5040
Transport Wnd (mph) SW 33 W 25
Vent Rate (kt-ft) 104360 142650
Category Day 4 5
Inversion 6pm 28F/10am None None
Dispersion 5 5
Max ADI Early 5 Very Poor 54 Gen Good 23 Fair 76 Good
Max ADI Late 8 Poor 81 Good 23 Fair 81 Good
Max LVORI Early 2 2 4 4
Max LVORI Late 2 3 5 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ073-210930-
Westmoreland-
Including the cities of Murrysville, Greensburg, New Kensington,
Lower Burrell, Latrobe, and Monessen
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow Snow/Rain None
Chance Precip (%) 0 70 80 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 7 (+2) 40 (+23) 29 36
RH % (24h trend) 63 (-10) 49 (+7) 95 50
Wind 20ft/early(mph) Lgt/Var S 7 G18 SW 13 G22 SW 14 G23
Wind 20ft/late(mph) Lgt/Var SW 14 G23 SW 12 G22 W 13 G23
Precip Amount 0.00 0.04 0.09 0.00
Precip Duration 4 7
Precip Begin 7 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 920 1590
Mixing Hgt(ft-agl/msl) 3010 5230
Transport Wnd (mph) SW 29 W 28
Vent Rate (kt-ft) 84570 172570
Category Day 4 5
Inversion 6pm 27F/10am None None
Dispersion 5 5
Max ADI Early 6 Very Poor 41 Gen Good 27 Fair 85 Good
Max ADI Late 6 Very Poor 64 Good 26 Fair 89 Good
Max LVORI Early 3 3 5 4
Max LVORI Late 3 3 5 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ074-210930-
Higher Elevations of Westmoreland-
Including the cities of Ligonier and Donegal
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow/Fz Ra Snow/Fz Ra None
Chance Precip (%) 0 70 70 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 7 (+5) 39 (+24) 28 35
RH % (24h trend) 56 (-18) 46 (+5) 94 50
Wind 20ft/early(mph) Lgt/Var S 6 G19 SW 12 G24 W 13 G26
Wind 20ft/late(mph) Lgt/Var SW 11 G23 W 12 G25 W 13 G26
Precip Amount 0.00 0.07 0.17 0.00
Precip Duration 4 6
Precip Begin 7 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 1020 1580
Mixing Hgt(ft-agl/msl) 3350 5180
Transport Wnd (mph) SW 30 W 32
Vent Rate (kt-ft) 120420 172260
Category Day 4 5
Inversion 6pm 26F/10am None None
Dispersion 5 5
Max ADI Early 7 Poor 40 Fair 27 Fair 92 Good
Max ADI Late 5 Very Poor 70 Good 30 Fair 97 Good
Max LVORI Early 2 2 4 4
Max LVORI Late 3 3 4 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ075-210930-
Fayette-
Including the city of Uniontown
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow/Rain Snow/Rain None
Chance Precip (%) 0 70 80 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 9 (+3) 40 (+22) 30 38
RH % (24h trend) 58 (-13) 48 (+9) 96 48
Wind 20ft/early(mph) Lgt/Var S 7 G18 SW 10 G20 SW 11 G21
Wind 20ft/late(mph) Lgt/Var SW 12 G22 SW 10 G21 W 10 G21
Precip Amount 0.00 0.03 0.09 0.00
Precip Duration 3 7
Precip Begin 11 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 950 1620
Mixing Hgt(ft-agl/msl) 3100 5320
Transport Wnd (mph) SW 30 W 26
Vent Rate (kt-ft) 92610 161210
Category Day 4 5
Inversion 6pm 29F/10am None None
Dispersion 5 5
Max ADI Early 5 Very Poor 44 Gen Good 23 Fair 84 Good
Max ADI Late 7 Poor 72 Good 23 Fair 87 Good
Max LVORI Early 2 2 4 4
Max LVORI Late 3 3 5 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ076-210930-
Higher Elevations of Fayette-
Including the cities of Champion and Ohiopyle
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow Snow/Fz Ra None
Chance Precip (%) 0 70 80 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 7 (+5) 39 (+24) 28 35
RH % (24h trend) 57 (-23) 49 (+8) 99 51
Wind 20ft/early(mph) Lgt/Var S 5 G19 SW 10 G23 W 10 G23
Wind 20ft/late(mph) Lgt/Var SW 9 G23 SW 10 G23 W 9 G23
Precip Amount 0.00 0.06 0.15 0.00
Precip Duration 3 8
Precip Begin 11 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 970 1440
Mixing Hgt(ft-agl/msl) 3190 4720
Transport Wnd (mph) SW 32 W 29
Vent Rate (kt-ft) 148640 160310
Category Day 4 5
Inversion 6pm 27F/10am 6pm 30F/4am
Dispersion 5 5
Max ADI Early 6 Very Poor 40 Fair 23 Fair 86 Good
Max ADI Late 5 Very Poor 74 Good 29 Fair 94 Good
Max LVORI Early 2 2 5 4
Max LVORI Late 3 3 5 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ077-210930-
Indiana-
Including the city of Indiana
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow Snow/Fz Ra None
Chance Precip (%) 0 80 70 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 6 (+4) 37 (+22) 27 35
RH % (24h trend) 66 (-13) 49 (+3) 95 53
Wind 20ft/early(mph) Lgt/Var S 6 G18 SW 11 G23 SW 13 G25
Wind 20ft/late(mph) Lgt/Var SW 11 G22 SW 12 G24 W 12 G25
Precip Amount 0.00 0.09 0.11 0.00
Precip Duration 5 6
Precip Begin 7 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 920 1540
Mixing Hgt(ft-agl/msl) 3010 5050
Transport Wnd (mph) SW 26 W 30
Vent Rate (kt-ft) 86950 174280
Category Day 4 5
Inversion 6pm 23F/10am None None
Dispersion 5 5
Max ADI Early 5 Very Poor 37 Fair 25 Fair 88 Good
Max ADI Late 5 Very Poor 61 Good 30 Fair 94 Good
Max LVORI Early 3 3 4 4
Max LVORI Late 3 3 4 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ078-210930-
Higher Elevations of Indiana-
Including the city of Armagh
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Clear Mcldy Mcldy Pcldy
Precip Type None Snow Snow/Rain None
Chance Precip (%) 0 80 70 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 6 (+4) 37 (+23) 28 34
RH % (24h trend) 62 (-15) 47 (+3) 94 53
Wind 20ft/early(mph) SW 5 S 6 G18 SW 11 G23 W 13 G26
Wind 20ft/late(mph) Lgt/Var SW 10 G21 W 13 G24 W 13 G27
Precip Amount 0.00 0.09 0.13 0.00
Precip Duration 4 6
Precip Begin 7 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 940 1500
Mixing Hgt(ft-agl/msl) 3090 4910
Transport Wnd (mph) SW 26 W 32
Vent Rate (kt-ft) 73400 165590
Category Day 4 5
Inversion 6pm 23F/10am None None
Dispersion 5 5
Max ADI Early 7 Poor 36 Fair 27 Fair 91 Good
Max ADI Late 5 Very Poor 62 Good 33 Fair 97 Good
Max LVORI Early 3 3 4 4
Max LVORI Late 3 3 4 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ001-210930-
Hancock-
Including the city of Weirton
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow Snow/Rain None
Chance Precip (%) 0 60 70 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 10 (+7) 36 (+19) 28 34
RH % (24h trend) 53 (-22) 46 (+8) 87 44
Wind 20ft/early(mph) Lgt/Var S 8 G22 SW 10 G19 SW 10 G21
Wind 20ft/late(mph) Lgt/Var SW 12 G23 SW 10 G20 W 10 G21
Precip Amount 0.00 0.02 0.05 0.00
Precip Duration 3 5
Precip Begin 10 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 940 1470
Mixing Hgt(ft-agl/msl) 3080 4840
Transport Wnd (mph) SW 31 W 26
Vent Rate (kt-ft) 102370 141810
Category Day 4 5
Inversion 6pm 21F/9am None None
Dispersion 5 5
Max ADI Early 5 Very Poor 54 Gen Good 26 Fair 82 Good
Max ADI Late 8 Poor 74 Good 25 Fair 83 Good
Max LVORI Early 2 2 4 3
Max LVORI Late 2 3 4 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ002-210930-
Brooke-
Including the cities of Follansbee and Wellsburg
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow Snow/Rain None
Chance Precip (%) 0 60 70 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 10 (+7) 37 (+19) 29 35
RH % (24h trend) 52 (-18) 45 (+9) 87 44
Wind 20ft/early(mph) Lgt/Var S 9 G23 SW 11 G21 SW 11 G22
Wind 20ft/late(mph) Lgt/Var SW 13 G25 SW 11 G20 W 11 G22
Precip Amount 0.00 0.03 0.05 0.00
Precip Duration 3 5
Precip Begin 10 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 940 1510
Mixing Hgt(ft-agl/msl) 3070 4950
Transport Wnd (mph) SW 31 W 26
Vent Rate (kt-ft) 93830 140040
Category Day 4 5
Inversion 6pm 22F/9am None None
Dispersion 5 5
Max ADI Early 5 Very Poor 56 Gen Good 26 Fair 78 Good
Max ADI Late 8 Poor 73 Good 27 Fair 82 Good
Max LVORI Early 2 2 4 3
Max LVORI Late 2 3 4 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ003-210930-
Ohio-
Including the city of Wheeling
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow Snow/Rain None
Chance Precip (%) 0 60 60 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 11 (+8) 37 (+19) 29 36
RH % (24h trend) 52 (-23) 45 (+9) 91 44
Wind 20ft/early(mph) Lgt/Var S 9 G23 SW 12 G22 SW 12 G22
Wind 20ft/late(mph) S 5 SW 14 G25 SW 11 G21 W 11 G22
Precip Amount 0.00 0.05 0.04 0.00
Precip Duration 2 5
Precip Begin 11 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 930 1480
Mixing Hgt(ft-agl/msl) 3060 4850
Transport Wnd (mph) SW 33 W 25
Vent Rate (kt-ft) 80420 128770
Category Day 4 5
Inversion 6pm 23F/9am None None
Dispersion 5 5
Max ADI Early 5 Very Poor 58 Gen Good 27 Fair 76 Good
Max ADI Late 9 Poor 79 Good 24 Fair 78 Good
Max LVORI Early 2 2 4 4
Max LVORI Late 2 3 4 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ004-210930-
Marshall-
Including the city of Moundsville
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow Snow/Rain None
Chance Precip (%) 0 60 60 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 11 (+7) 39 (+20) 30 38
RH % (24h trend) 52 (-24) 44 (+6) 92 45
Wind 20ft/early(mph) Lgt/Var S 8 G22 SW 11 G22 SW 10 G22
Wind 20ft/late(mph) Lgt/Var SW 12 G25 SW 10 G21 W 10 G21
Precip Amount 0.00 0.05 0.06 0.00
Precip Duration 2 5
Precip Begin 7 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 930 1490
Mixing Hgt(ft-agl/msl) 3040 4880
Transport Wnd (mph) SW 31 W 24
Vent Rate (kt-ft) 89930 131000
Category Day 4 5
Inversion 6pm 23F/9am None None
Dispersion 5 5
Max ADI Early 5 Very Poor 56 Gen Good 23 Fair 71 Good
Max ADI Late 7 Poor 74 Good 23 Fair 77 Good
Max LVORI Early 2 2 4 4
Max LVORI Late 2 3 5 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ012-210930-
Wetzel-
Including the city of New Martinsville
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mcldy Mcldy Pcldy
Precip Type None Snow/Rain Snow/Rain None
Chance Precip (%) 0 60 60 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 11 (+6) 38 (+20) 30 37
RH % (24h trend) 52 (-27) 45 (+7) 95 48
Wind 20ft/early(mph) Lgt/Var S 6 G22 SW 10 G22 SW 9 G21
Wind 20ft/late(mph) Lgt/Var SW 10 G23 SW 9 G21 W 8 G21
Precip Amount 0.00 0.03 0.08 0.00
Precip Duration 2 5
Precip Begin 11 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 880 1450
Mixing Hgt(ft-agl/msl) 2890 4770
Transport Wnd (mph) SW 28 W 24
Vent Rate (kt-ft) 86760 130480
Category Day 4 4
Inversion 6pm 28F/10am None None
Dispersion 5 5
Max ADI Early 5 Very Poor 43 Gen Good 23 Fair 69 Good
Max ADI Late 6 Very Poor 64 Good 22 Fair 92 Good
Max LVORI Early 2 2 5 4
Max LVORI Late 2 3 5 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ021-210930-
Marion-
Including the city of Fairmont
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Pcldy Mcldy Pcldy
Precip Type None Snow/Rain Snow/Rain None
Chance Precip (%) 0 60 70 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 10 (+4) 40 (+21) 31 38
RH % (24h trend) 54 (-20) 48 (+9) 97 51
Wind 20ft/early(mph) Lgt/Var S 6 G19 SW 9 G21 SW 10 G20
Wind 20ft/late(mph) Lgt/Var SW 10 G23 SW 10 G20 W 9 G20
Precip Amount 0.00 0.02 0.08 0.00
Precip Duration 2 6
Precip Begin 11 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 960 1440
Mixing Hgt(ft-agl/msl) 3140 4740
Transport Wnd (mph) SW 29 W 24
Vent Rate (kt-ft) 94420 130710
Category Day 4 4
Inversion 6pm 29F/10am None None
Dispersion 5 5
Max ADI Early 5 Very Poor 47 Gen Good 22 Fair 78 Good
Max ADI Late 4 Very Poor 68 Good 22 Fair 88 Good
Max LVORI Early 2 2 5 4
Max LVORI Late 2 3 5 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ509-210930-
Monongalia-
Including the city of Morgantown
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Pcldy Mcldy Pcldy
Precip Type None Snow/Rain Snow/Rain None
Chance Precip (%) 0 70 70 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 10 (+5) 41 (+22) 31 38
RH % (24h trend) 54 (-20) 47 (+8) 96 49
Wind 20ft/early(mph) Lgt/Var S 6 G20 SW 9 G21 SW 10 G20
Wind 20ft/late(mph) Lgt/Var SW 10 G23 SW 10 G20 W 9 G20
Precip Amount 0.00 0.03 0.08 0.00
Precip Duration 2 6
Precip Begin 11 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 960 1520
Mixing Hgt(ft-agl/msl) 3140 5000
Transport Wnd (mph) SW 30 W 25
Vent Rate (kt-ft) 103200 153590
Category Day 4 5
Inversion 6pm 29F/10am None None
Dispersion 5 5
Max ADI Early 5 Very Poor 49 Gen Good 23 Fair 78 Good
Max ADI Late 5 Very Poor 70 Good 23 Fair 91 Good
Max LVORI Early 2 2 4 4
Max LVORI Late 2 3 5 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ510-210930-
Ridges of Eastern Monongalia and Northwestern Preston-
Including the city of Coopers Rock
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Pcldy Mcldy Pcldy
Precip Type None Snow Snow/Rain None
Chance Precip (%) 0 70 70 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 8 (+6) 39 (+24) 29 35
RH % (24h trend) 55 (-26) 48 (+8) 99 52
Wind 20ft/early(mph) Lgt/Var S 6 G19 SW 11 G21 SW 11 G22
Wind 20ft/late(mph) Lgt/Var SW 10 G22 SW 11 G22 W 9 G21
Precip Amount 0.00 0.04 0.11 0.00
Precip Duration 2 6
Precip Begin 1 PM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 780 1300
Mixing Hgt(ft-agl/msl) 2570 4270
Transport Wnd (mph) SW 28 W 25
Vent Rate (kt-ft) 95450 134810
Category Day 4 4
Inversion 6pm 28F/10am 6pm 31F/6am
Dispersion 5 5
Max ADI Early 5 Very Poor 38 Fair 22 Fair 77 Good
Max ADI Late 5 Very Poor 59 Gen Good 26 Fair 86 Good
Max LVORI Early 2 2 4 4
Max LVORI Late 2 3 5 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ511-210930-
Preston-
Including the cities of Kingwood and Bruceton Mills
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Pcldy Mcldy Pcldy
Precip Type None Snow/Rain Snow/Rain None
Chance Precip (%) 0 70 70 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 8 (+5) 40 (+24) 29 36
RH % (24h trend) 57 (-22) 49 (+9) 100 54
Wind 20ft/early(mph) Lgt/Var S 5 G18 SW 8 G20 SW 9 G22
Wind 20ft/late(mph) Lgt/Var SW 8 G21 SW 9 G21 W 9 G21
Precip Amount 0.00 0.05 0.11 0.00
Precip Duration 2 6
Precip Begin 12 PM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 900 1350
Mixing Hgt(ft-agl/msl) 2940 4420
Transport Wnd (mph) SW 26 W 26
Vent Rate (kt-ft) 123260 135560
Category Day 4 5
Inversion 6pm 29F/10am 10pm 31F/4am
Dispersion 5 5
Max ADI Early 5 Very Poor 43 Gen Good 26 Fair 84 Good
Max ADI Late 5 Very Poor 61 Good 28 Fair 96 Good
Max LVORI Early 3 2 4 4
Max LVORI Late 3 3 5 2
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ512-210930-
Eastern Preston-
Including the cities of Terra Alta, Rowlesburg, and Hazelton
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Pcldy Mcldy Pcldy
Precip Type None Snow Snow/Fz Ra None
Chance Precip (%) 0 70 70 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 7 (+6) 40 (+26) 28 35
RH % (24h trend) 61 (-22) 49 (+5) 100 56
Wind 20ft/early(mph) SW 5 S 6 G19 SW 11 G23 W 12 G26
Wind 20ft/late(mph) Lgt/Var SW 10 G23 W 12 G25 W 10 G25
Precip Amount 0.00 0.08 0.14 0.00
Precip Duration 2 6
Precip Begin 12 PM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 870 1220
Mixing Hgt(ft-agl/msl) 2840 3990
Transport Wnd (mph) SW 29 W 29
Vent Rate (kt-ft) 108890 137060
Category Day 4 4
Inversion 6pm 28F/10am 7pm 30F/6am
Dispersion 5 5
Max ADI Early 7 Poor 43 Gen Good 26 Fair 84 Good
Max ADI Late 5 Very Poor 62 Good 33 Fair 83 Good
Max LVORI Early 3 2 4 4
Max LVORI Late 3 3 4 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ513-210930-
Western Tucker-
Including the cities of Parsons, Hendricks, and Saint George
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Clear Pcldy Mcldy Pcldy
Precip Type None Snow/Rain Snow/Rain None
Chance Precip (%) 0 60 60 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 7 (+4) 42 (+26) 29 37
RH % (24h trend) 60 (-22) 45 (+6) 100 53
Wind 20ft/early(mph) Lgt/Var S 5 G20 SW 9 G23 W 12 G24
Wind 20ft/late(mph) Lgt/Var SW 9 G23 W 11 G24 W 10 G24
Precip Amount 0.00 0.05 0.09 0.00
Precip Duration 2 6
Precip Begin 12 PM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 970 1250
Mixing Hgt(ft-agl/msl) 3180 4100
Transport Wnd (mph) SW 26 W 30
Vent Rate (kt-ft) 96080 115510
Category Day 4 5
Inversion 6pm 29F/10am None None
Dispersion 5 5
Max ADI Early 6 Very Poor 50 Gen Good 28 Fair 83 Good
Max ADI Late 5 Very Poor 60 Gen Good 33 Fair 80 Good
Max LVORI Early 3 2 4 4
Max LVORI Late 3 2 4 1
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ514-210930-
Eastern Tucker-
Including the cities of Davis, Thomas, and Canaan Valley
1203 PM EST Tue Jan 20 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Pcldy Mcldy Pcldy
Precip Type None Snow Snow/Fz Ra None
Chance Precip (%) 0 50 60 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 4 (+5) 38 (+27) 25 33
RH % (24h trend) 60 (-22) 46 (-1) 100 60
Wind 20ft/early(mph) W 5 G20 SW 6 G23 SW 11 G33 W 14 G37
Wind 20ft/late(mph) Lgt/Var SW 10 G29 W 14 G36 W 12 G35
Precip Amount 0.00 0.05 0.11 0.00
Precip Duration 1 6
Precip Begin 1 PM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 980 1120
Mixing Hgt(ft-agl/msl) 3220 3680
Transport Wnd (mph) SW 32 W 35
Vent Rate (kt-ft) 116090 135400
Category Day 4 5
Inversion 6pm 26F/10am 6pm 29F/6am
Dispersion 5 5
Max ADI Early 10 Poor 59 Gen Good 29 Fair 85 Good
Max ADI Late 6 Very Poor 74 Good 41 Gen Good 86 Good
Max LVORI Early 3 2 4 4
Max LVORI Late 3 2 4 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY...Mostly cloudy. Lows around 14. Highs around 19. West
winds around 5 mph.
.SATURDAY...Mostly cloudy. Lows near zero. Highs around 12. North
winds 10 to 15 mph.
.SUNDAY...Mostly cloudy with a chance of snow. Lows around 7.
Highs around 19. Northeast winds 5 to 10 mph.
.MONDAY...Mostly cloudy with a chance of snow. Lows around 6.
Highs around 19. West winds 10 to 15 mph.
.TUESDAY...Mostly cloudy. Lows around 4. Highs in the lower 20s.
West winds 10 to 15 mph.
$$
Shallenberger