Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Pittsburgh, PA
Issued by NWS Pittsburgh, PA
489
FNUS51 KPBZ 040607
FWFPBZ
Fire Weather Planning Forecast
National Weather Service Pittsburgh PA
107 AM EST Thu Dec 4 2025
.DISCUSSION...
A cold front dropping through the region through Thursday morning
will provide light snow, with accumulations generally an inch or
less. Another system passing by to our south may spread another
round of light snow to areas south and east of Pittsburgh. Fire
weather concerns are not anticipated.
OHZ039-042115-
Tuscarawas-
Including the cities of New Philadelphia and Dover
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Pcldy Mclear Mclear
Precip Type Snow None None
Chance Precip (%) 40 0 0
Chance of Thunder (%) 0 0 0
Temp (24h trend) 30 (0) 8 (-15) 34
RH % (24h trend) 56 (-17) 93 (-4) 62
Wind 20ft/early(mph) NW 7 G18 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 7 G18 Lgt/Var Lgt/Var
Precip Amount 0.01 0.00 0.00
Precip Duration 0
Precip Begin 6 AM
Precip End 9 AM
Mixing Hgt(m-agl/msl) 1030 660
Mixing Hgt(ft-agl/msl)3390 2170
Transport Wnd (mph) NW 16 SW 10
Vent Rate (kt-ft) 57090 21850
Category Day 3 2
Inversion 27F/9am 5pm 24F/11am
Dispersion 5 5
Max ADI Early 48 Gen Good 3 Very Poor 17 Gen Poor
Max ADI Late 51 Gen Good 4 Very Poor 28 Fair
Max LVORI Early 5 6 7
Max LVORI Late 3 9 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ040-042115-
Carroll-
Including the cities of Carrollton and Malvern
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Pcldy Mclear Mclear
Precip Type Snow None None
Chance Precip (%) 50 0 0
Chance of Thunder (%) 0 0 0
Temp (24h trend) 29 (0) 8 (-15) 33
RH % (24h trend) 58 (-14) 92 (-2) 63
Wind 20ft/early(mph) NW 8 G18 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 8 G18 Lgt/Var Lgt/Var
Precip Amount 0.01 0.00 0.00
Precip Duration 0
Precip Begin 6 AM
Precip End 9 AM
Mixing Hgt(m-agl/msl) 1020 630
Mixing Hgt(ft-agl/msl)3350 2080
Transport Wnd (mph) NW 17 SW 12
Vent Rate (kt-ft) 59310 20040
Category Day 4 2
Inversion 27F/9am 5pm 24F/11am
Dispersion 5 5
Max ADI Early 49 Gen Good 3 Very Poor 18 Gen Poor
Max ADI Late 53 Gen Good 4 Very Poor 30 Fair
Max LVORI Early 5 6 6
Max LVORI Late 3 8 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ041-042115-
Columbiana-
Including the cities of East Liverpool, Salem, and Columbiana
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Pcldy Mclear Mclear
Precip Type Snow None None
Chance Precip (%) 50 0 0
Chance of Thunder (%) 0 0 0
Temp (24h trend) 29 (-1) 7 (-16) 32
RH % (24h trend) 60 (-13) 92 (-2) 64
Wind 20ft/early(mph) W 8 G19 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 8 G18 Lgt/Var Lgt/Var
Precip Amount 0.01 0.00 0.00
Precip Duration 1
Precip Begin 6 AM
Precip End 10 AM
Mixing Hgt(m-agl/msl) 1070 700
Mixing Hgt(ft-agl/msl)3510 2290
Transport Wnd (mph) NW 20 SW 13
Vent Rate (kt-ft) 70860 28790
Category Day 4 3
Inversion 27F/9am 5pm 23F/11am
Dispersion 5 5
Max ADI Early 55 Gen Good 3 Very Poor 19 Gen Poor
Max ADI Late 56 Gen Good 4 Very Poor 29 Fair
Max LVORI Early 5 6 6
Max LVORI Late 3 8 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ048-042115-
Coshocton-
Including the city of Coshocton
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Pcldy Mclear Mclear
Precip Type None None None
Chance Precip (%) 0 0 0
Chance of Thunder (%) 0 0 0
Temp (24h trend) 29 (-1) 8 (-15) 32
RH % (24h trend) 55 (-21) 95 (-5) 62
Wind 20ft/early(mph) NW 6 G17 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 6 Lgt/Var Lgt/Var
Precip Amount 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt(m-agl/msl) 990 650
Mixing Hgt(ft-agl/msl)3250 2140
Transport Wnd (mph) N 14 SW 10
Vent Rate (kt-ft) 42630 21920
Category Day 3 2
Inversion 27F/9am 5pm 24F/11am
Dispersion 5 5
Max ADI Early 53 Gen Good 3 Very Poor 17 Gen Poor
Max ADI Late 50 Gen Good 4 Very Poor 29 Fair
Max LVORI Early 6 6 8
Max LVORI Late 2 9 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ049-042115-
Harrison-
Including the city of Cadiz
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Pcldy Mclear Pcldy
Precip Type Snow None None
Chance Precip (%) 50 0 0
Chance of Thunder (%) 0 0 0
Temp (24h trend) 31 (+2) 9 (-14) 34
RH % (24h trend) 54 (-19) 92 (-3) 62
Wind 20ft/early(mph) W 7 G18 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 7 G19 Lgt/Var Lgt/Var
Precip Amount 0.02 0.00 0.00
Precip Duration 0
Precip Begin 6 AM
Precip End 9 AM
Mixing Hgt(m-agl/msl) 1030 690
Mixing Hgt(ft-agl/msl)3380 2270
Transport Wnd (mph) NW 17 SW 12
Vent Rate (kt-ft) 59040 21060
Category Day 4 2
Inversion 28F/9am 5pm 25F/11am
Dispersion 5 5
Max ADI Early 48 Gen Good 3 Very Poor 16 Gen Poor
Max ADI Late 52 Gen Good 4 Very Poor 29 Fair
Max LVORI Early 5 5 7
Max LVORI Late 2 8 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ050-042115-
Jefferson OH-
Including the city of Steubenville
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Pcldy Mclear Pcldy
Precip Type Snow None None
Chance Precip (%) 50 0 0
Chance of Thunder (%) 0 0 0
Temp (24h trend) 31 (+2) 9 (-15) 34
RH % (24h trend) 54 (-20) 88 (-4) 63
Wind 20ft/early(mph) W 7 G18 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 8 G19 Lgt/Var Lgt/Var
Precip Amount 0.01 0.00 0.00
Precip Duration 1
Precip Begin 6 AM
Precip End 10 AM
Mixing Hgt(m-agl/msl) 1080 720
Mixing Hgt(ft-agl/msl)3560 2350
Transport Wnd (mph) NW 20 SW 12
Vent Rate (kt-ft) 68870 25330
Category Day 4 2
Inversion 28F/9am 5pm 25F/11am
Dispersion 5 5
Max ADI Early 50 Gen Good 3 Very Poor 16 Gen Poor
Max ADI Late 54 Gen Good 4 Very Poor 30 Fair
Max LVORI Early 5 5 6
Max LVORI Late 2 6 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ057-042115-
Muskingum-
Including the city of Zanesville
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Snow None None
Chance Precip (%) 30 0 0
Chance of Thunder (%) 0 0 0
Temp (24h trend) 31 (0) 9 (-13) 34
RH % (24h trend) 55 (-16) 93 (-7) 64
Wind 20ft/early(mph) NW 5 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 5 Lgt/Var Lgt/Var
Precip Amount 0.00 0.00 0.00
Precip Duration 0
Precip Begin 6 AM
Precip End 8 AM
Mixing Hgt(m-agl/msl) 970 610
Mixing Hgt(ft-agl/msl)3190 2000
Transport Wnd (mph) N 14 SW 9
Vent Rate (kt-ft) 46260 20690
Category Day 3 2
Inversion 28F/9am 5pm 22F/10am
Dispersion 5 5
Max ADI Early 39 Fair 3 Very Poor 15 Gen Poor
Max ADI Late 45 Gen Good 4 Very Poor 24 Fair
Max LVORI Early 6 6 8
Max LVORI Late 3 9 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ058-042115-
Guernsey-
Including the city of Cambridge
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Snow None None
Chance Precip (%) 40 0 0
Chance of Thunder (%) 0 0 0
Temp (24h trend) 31 (0) 10 (-12) 35
RH % (24h trend) 53 (-22) 92 (-7) 61
Wind 20ft/early(mph) NW 5 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 6 Lgt/Var Lgt/Var
Precip Amount 0.01 0.00 0.00
Precip Duration 0
Precip Begin 6 AM
Precip End 9 AM
Mixing Hgt(m-agl/msl) 1040 650
Mixing Hgt(ft-agl/msl)3410 2150
Transport Wnd (mph) NW 15 SW 9
Vent Rate (kt-ft) 52480 18510
Category Day 3 2
Inversion 28F/9am 6pm 23F/10am
Dispersion 5 5
Max ADI Early 42 Gen Good 3 Very Poor 16 Gen Poor
Max ADI Late 47 Gen Good 4 Very Poor 26 Fair
Max LVORI Early 5 6 7
Max LVORI Late 2 9 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ059-042115-
Belmont-
Including the cities of Martins Ferry and St. Clairsville
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Snow None Snow
Chance Precip (%) 50 0 10
Chance of Thunder (%) 0 0 0
Temp (24h trend) 32 (+3) 11 (-13) 36
RH % (24h trend) 55 (-21) 92 (-4) 66
Wind 20ft/early(mph) W 6 G17 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 7 G17 Lgt/Var Lgt/Var
Precip Amount 0.02 0.00 0.00
Precip Duration 1 1
Precip Begin 6 AM 7 AM
Precip End 9 AM 1 PM
Mixing Hgt(m-agl/msl) 1060 630
Mixing Hgt(ft-agl/msl)3490 2070
Transport Wnd (mph) NW 15 SW 12
Vent Rate (kt-ft) 55380 25410
Category Day 3 2
Inversion 28F/9am 6pm 27F/11am
Dispersion 5 5
Max ADI Early 43 Gen Good 3 Very Poor 15 Gen Poor
Max ADI Late 44 Gen Good 4 Very Poor 25 Fair
Max LVORI Early 5 6 7
Max LVORI Late 2 9 4
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ068-042115-
Noble-
Including the city of Caldwell
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Snow None None
Chance Precip (%) 30 0 0
Chance of Thunder (%) 0 0 0
Temp (24h trend) 33 (+3) 11 (-11) 36
RH % (24h trend) 55 (-21) 91 (-9) 65
Wind 20ft/early(mph) W 5 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 5 Lgt/Var Lgt/Var
Precip Amount 0.01 0.00 0.00
Precip Duration 1
Precip Begin 6 AM
Precip End 9 AM
Mixing Hgt(m-agl/msl) 1050 640
Mixing Hgt(ft-agl/msl)3440 2110
Transport Wnd (mph) NW 13 SW 10
Vent Rate (kt-ft) 43650 17370
Category Day 3 2
Inversion 29F/9am 11pm 25F/10am
Dispersion 5 5
Max ADI Early 37 Fair 3 Very Poor 15 Gen Poor
Max ADI Late 43 Gen Good 4 Very Poor 21 Fair
Max LVORI Early 6 6 6
Max LVORI Late 3 9 4
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ069-042115-
Monroe-
Including the city of Woodsfield
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Snow None Snow
Chance Precip (%) 30 0 10
Chance of Thunder (%) 0 0 0
Temp (24h trend) 33 (+4) 12 (-11) 36
RH % (24h trend) 56 (-20) 89 (-10) 68
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 5 Lgt/Var Lgt/Var
Precip Amount 0.02 0.00 0.00
Precip Duration 1 1
Precip Begin 6 AM 7 AM
Precip End 9 AM 1 PM
Mixing Hgt(m-agl/msl) 1100 650
Mixing Hgt(ft-agl/msl)3590 2130
Transport Wnd (mph) NW 14 SW 9
Vent Rate (kt-ft) 48410 16130
Category Day 3 2
Inversion 28F/9am 8pm 26F/10am
Dispersion 5 5
Max ADI Early 33 Fair 3 Very Poor 16 Gen Poor
Max ADI Late 39 Fair 4 Very Poor 20 Gen Poor
Max LVORI Early 6 6 6
Max LVORI Late 3 9 4
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ007-042115-
Mercer-
Including the cities of Sharon, Hermitage, and Grove City
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Pcldy Mclear Mclear
Precip Type Snow None None
Chance Precip (%) 60 0 0
Chance of Thunder (%) 0 0 0
Temp (24h trend) 29 (+1) 7 (-14) 30
RH % (24h trend) 63 (-16) 95 (-5) 65
Wind 20ft/early(mph) W 10 G21 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 9 G22 Lgt/Var S 5
Precip Amount 0.01 0.00 0.00
Precip Duration 2
Precip Begin 6 AM
Precip End 3 PM
Mixing Hgt(m-agl/msl) 1110 610
Mixing Hgt(ft-agl/msl)3630 1990
Transport Wnd (mph) NW 21 SW 14
Vent Rate (kt-ft) 80930 28960
Category Day 4 2
Inversion 26F/9am 5pm 22F/11am
Dispersion 5 5
Max ADI Early 62 Good 4 Very Poor 23 Fair
Max ADI Late 61 Good 4 Very Poor 32 Fair
Max LVORI Early 5 7 6
Max LVORI Late 3 9 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ008-042115-
Venango-
Including the cities of Oil City and Franklin
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Pcldy Pcldy Mclear
Precip Type Snow None None
Chance Precip (%) 60 0 0
Chance of Thunder (%) 0 0 0
Temp (24h trend) 29 (+1) 7 (-14) 31
RH % (24h trend) 62 (-21) 96 (-3) 61
Wind 20ft/early(mph) W 9 G22 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 9 G22 Lgt/Var Lgt/Var
Precip Amount 0.01 0.00 0.00
Precip Duration 2
Precip Begin 6 AM
Precip End 4 PM
Mixing Hgt(m-agl/msl) 1170 770
Mixing Hgt(ft-agl/msl)3830 2540
Transport Wnd (mph) NW 24 SW 15
Vent Rate (kt-ft) 97540 32570
Category Day 4 3
Inversion 25F/9am 6pm 18F/10am
Dispersion 5 5
Max ADI Early 67 Good 6 Very Poor 29 Fair
Max ADI Late 64 Good 4 Very Poor 42 Gen Good
Max LVORI Early 5 7 6
Max LVORI Late 3 10 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ009-042115-
Forest-
Including the city of Tionesta
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Mcldy Pcldy Pcldy
Precip Type Snow None None
Chance Precip (%) 60 0 0
Chance of Thunder (%) 0 0 0
Temp (24h trend) 28 (+1) 6 (-15) 30
RH % (24h trend) 58 (-22) 95 (-3) 57
Wind 20ft/early(mph) W 7 G22 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 8 G23 Lgt/Var Lgt/Var
Precip Amount 0.01 0.00 0.00
Precip Duration 3
Precip Begin 6 AM
Precip End 4 PM
Mixing Hgt(m-agl/msl) 1300 790
Mixing Hgt(ft-agl/msl)4250 2590
Transport Wnd (mph) NW 26 S 16
Vent Rate (kt-ft) 104450 31730
Category Day 4 3
Inversion 23F/8am 7pm 19F/10am
Dispersion 5 5
Max ADI Early 73 Good 8 Poor 34 Fair
Max ADI Late 76 Good 4 Very Poor 46 Gen Good
Max LVORI Early 5 6 6
Max LVORI Late 3 9 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ013-042115-
Lawrence-
Including the cities of New Castle and Ellwood City
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Pcldy Mclear Mclear
Precip Type Snow None None
Chance Precip (%) 50 0 0
Chance of Thunder (%) 0 0 0
Temp (24h trend) 30 (0) 6 (-17) 32
RH % (24h trend) 62 (-12) 95 (-2) 65
Wind 20ft/early(mph) W 8 G18 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 8 G19 Lgt/Var Lgt/Var
Precip Amount 0.01 0.00 0.00
Precip Duration 1
Precip Begin 6 AM
Precip End 11 AM
Mixing Hgt(m-agl/msl) 1130 660
Mixing Hgt(ft-agl/msl)3690 2180
Transport Wnd (mph) NW 22 SW 13
Vent Rate (kt-ft) 79240 27360
Category Day 4 2
Inversion 27F/9am 5pm 20F/10am
Dispersion 5 5
Max ADI Early 61 Good 4 Very Poor 21 Fair
Max ADI Late 59 Gen Good 4 Very Poor 31 Fair
Max LVORI Early 5 6 6
Max LVORI Late 3 9 4
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ014-042115-
Butler-
Including the city of Butler
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Pcldy Mclear Pcldy
Precip Type Snow None None
Chance Precip (%) 50 0 0
Chance of Thunder (%) 0 0 0
Temp (24h trend) 30 (+1) 7 (-15) 32
RH % (24h trend) 63 (-19) 96 (-3) 68
Wind 20ft/early(mph) W 8 G19 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 9 G19 Lgt/Var Lgt/Var
Precip Amount 0.01 0.00 0.00
Precip Duration 1
Precip Begin 6 AM
Precip End 11 AM
Mixing Hgt(m-agl/msl) 1100 630
Mixing Hgt(ft-agl/msl)3610 2060
Transport Wnd (mph) NW 23 SW 12
Vent Rate (kt-ft) 78250 25730
Category Day 4 2
Inversion 27F/9am 5pm 21F/10am
Dispersion 5 5
Max ADI Early 61 Good 4 Very Poor 22 Fair
Max ADI Late 62 Good 4 Very Poor 32 Fair
Max LVORI Early 5 7 6
Max LVORI Late 3 9 4
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ015-042115-
Clarion-
Including the city of Clarion
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Snow None None
Chance Precip (%) 50 0 0
Chance of Thunder (%) 0 0 0
Temp (24h trend) 29 (+1) 7 (-16) 31
RH % (24h trend) 60 (-23) 92 (-4) 63
Wind 20ft/early(mph) W 8 G21 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 8 G22 Lgt/Var Lgt/Var
Precip Amount 0.01 0.00 0.00
Precip Duration 1
Precip Begin 6 AM
Precip End 2 PM
Mixing Hgt(m-agl/msl) 1170 720
Mixing Hgt(ft-agl/msl)3850 2360
Transport Wnd (mph) NW 25 S 14
Vent Rate (kt-ft) 93670 29840
Category Day 4 3
Inversion 26F/9am 5pm 19F/10am
Dispersion 5 5
Max ADI Early 69 Good 5 Very Poor 29 Fair
Max ADI Late 74 Good 4 Very Poor 41 Gen Good
Max LVORI Early 5 6 6
Max LVORI Late 3 9 4
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ016-042115-
Jefferson PA-
Including the cities of Punxsutawney and Brookville
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Snow None None
Chance Precip (%) 50 0 0
Chance of Thunder (%) 0 0 0
Temp (24h trend) 29 (+2) 7 (-16) 30
RH % (24h trend) 57 (-24) 87 (-6) 62
Wind 20ft/early(mph) W 10 G23 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 10 G24 Lgt/Var S 5
Precip Amount 0.01 0.00 0.00
Precip Duration 1
Precip Begin 6 AM
Precip End 2 PM
Mixing Hgt(m-agl/msl) 1190 710
Mixing Hgt(ft-agl/msl)3890 2340
Transport Wnd (mph) NW 26 S 16
Vent Rate (kt-ft) 99380 39710
Category Day 4 3
Inversion 24F/8am 5pm 20F/10am
Dispersion 5 5
Max ADI Early 71 Good 8 Poor 32 Fair
Max ADI Late 70 Good 4 Very Poor 43 Gen Good
Max LVORI Early 4 5 5
Max LVORI Late 2 7 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ020-042115-
Beaver-
Including the cities of Aliquippa, Beaver Falls, Ambridge,
and Monaca
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Pcldy Mclear Pcldy
Precip Type Snow None None
Chance Precip (%) 50 0 0
Chance of Thunder (%) 0 0 0
Temp (24h trend) 30 (-1) 8 (-16) 33
RH % (24h trend) 60 (-13) 93 (-1) 66
Wind 20ft/early(mph) W 7 G18 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 7 G19 Lgt/Var Lgt/Var
Precip Amount 0.01 0.00 0.00
Precip Duration 1
Precip Begin 6 AM
Precip End 10 AM
Mixing Hgt(m-agl/msl) 1140 730
Mixing Hgt(ft-agl/msl)3730 2400
Transport Wnd (mph) NW 22 SW 12
Vent Rate (kt-ft) 83600 24890
Category Day 4 2
Inversion 28F/9am 5pm 21F/10am
Dispersion 5 5
Max ADI Early 58 Gen Good 3 Very Poor 19 Gen Poor
Max ADI Late 55 Gen Good 4 Very Poor 29 Fair
Max LVORI Early 5 6 6
Max LVORI Late 3 7 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ021-042115-
Allegheny-
Including the city of Pittsburgh Metro Area
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Mcldy Pcldy Pcldy
Precip Type Snow None Snow
Chance Precip (%) 50 0 20
Chance of Thunder (%) 0 0 0
Temp (24h trend) 31 (+2) 9 (-15) 34
RH % (24h trend) 62 (-15) 93 (-3) 70
Wind 20ft/early(mph) W 8 G18 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 9 G19 Lgt/Var Lgt/Var
Precip Amount 0.02 0.00 0.00
Precip Duration 1 1
Precip Begin 6 AM 7 AM
Precip End 11 AM 1 PM
Mixing Hgt(m-agl/msl) 1160 660
Mixing Hgt(ft-agl/msl)3800 2160
Transport Wnd (mph) NW 21 SW 12
Vent Rate (kt-ft) 75540 27180
Category Day 4 2
Inversion 26F/8am 6pm 22F/10am
Dispersion 5 5
Max ADI Early 57 Gen Good 4 Very Poor 17 Gen Poor
Max ADI Late 57 Gen Good 3 Very Poor 30 Fair
Max LVORI Early 5 6 6
Max LVORI Late 3 9 4
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ022-042115-
Armstrong-
Including the cities of Kittanning and Ford City
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Pcldy Mclear Pcldy
Precip Type Snow None Snow
Chance Precip (%) 50 0 10
Chance of Thunder (%) 0 0 0
Temp (24h trend) 30 (0) 7 (-16) 33
RH % (24h trend) 62 (-19) 95 (-1) 69
Wind 20ft/early(mph) W 9 G20 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 9 G21 Lgt/Var Lgt/Var
Precip Amount 0.01 0.00 0.00
Precip Duration 1 1
Precip Begin 6 AM 7 AM
Precip End 11 AM 1 PM
Mixing Hgt(m-agl/msl) 1150 670
Mixing Hgt(ft-agl/msl)3790 2200
Transport Wnd (mph) NW 23 SW 13
Vent Rate (kt-ft) 87100 30600
Category Day 4 3
Inversion 27F/9am 5pm 22F/10am
Dispersion 5 5
Max ADI Early 61 Good 4 Very Poor 21 Fair
Max ADI Late 64 Good 3 Very Poor 33 Fair
Max LVORI Early 5 6 6
Max LVORI Late 3 9 4
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ029-042115-
Washington-
Including the cities of Washington and Canonsburg
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Snow None Snow
Chance Precip (%) 50 0 20
Chance of Thunder (%) 0 0 0
Temp (24h trend) 31 (+2) 9 (-14) 36
RH % (24h trend) 59 (-20) 91 (-5) 70
Wind 20ft/early(mph) W 8 G18 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 9 G20 Lgt/Var Lgt/Var
Precip Amount 0.02 0.00 0.00
Precip Duration 1 1
Precip Begin 6 AM 7 AM
Precip End 10 AM 1 PM
Mixing Hgt(m-agl/msl) 1100 670
Mixing Hgt(ft-agl/msl)3620 2190
Transport Wnd (mph) NW 20 SW 13
Vent Rate (kt-ft) 70360 34830
Category Day 4 3
Inversion 25F/6am 5pm 26F/11am
Dispersion 5 5
Max ADI Early 49 Gen Good 3 Very Poor 15 Gen Poor
Max ADI Late 50 Gen Good 4 Very Poor 28 Fair
Max LVORI Early 5 5 7
Max LVORI Late 3 9 4
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ031-042115-
Greene-
Including the city of Waynesburg
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Mcldy Pcldy Mcldy
Precip Type Snow None Snow
Chance Precip (%) 50 0 20
Chance of Thunder (%) 0 0 0
Temp (24h trend) 32 (+3) 9 (-14) 36
RH % (24h trend) 64 (-16) 93 (-6) 75
Wind 20ft/early(mph) W 6 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 7 Lgt/Var Lgt/Var
Precip Amount 0.02 0.00 0.00
Precip Duration 1 1
Precip Begin 6 AM 7 AM
Precip End 11 AM 1 PM
Mixing Hgt(m-agl/msl) 1100 710
Mixing Hgt(ft-agl/msl)3610 2330
Transport Wnd (mph) NW 15 SW 15
Vent Rate (kt-ft) 60030 34480
Category Day 3 3
Inversion 27F/9am 5pm 28F/11am
Dispersion 5 5
Max ADI Early 35 Fair 3 Very Poor 17 Gen Poor
Max ADI Late 43 Gen Good 3 Very Poor 25 Fair
Max LVORI Early 5 6 9
Max LVORI Late 3 9 4
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ073-042115-
Westmoreland-
Including the cities of Murrysville, Greensburg, New Kensington,
Lower Burrell, Latrobe, and Monessen
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Mcldy Mclear Pcldy
Precip Type Snow/Fz Ra None Snow
Chance Precip (%) 50 0 20
Chance of Thunder (%) 0 0 0
Temp (24h trend) 32 (+2) 7 (-16) 35
RH % (24h trend) 63 (-17) 94 (-4) 71
Wind 20ft/early(mph) W 10 G19 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 10 G20 Lgt/Var Lgt/Var
Precip Amount 0.02 0.00 0.00
Precip Duration 1 1
Precip Begin 6 AM 7 AM
Precip End 12 PM 1 PM
Mixing Hgt(m-agl/msl) 1190 600
Mixing Hgt(ft-agl/msl)3900 1960
Transport Wnd (mph) NW 21 SW 12
Vent Rate (kt-ft) 81840 27250
Category Day 4 2
Inversion 24F/6am 5pm 25F/10am
Dispersion 5 5
Max ADI Early 51 Gen Good 4 Very Poor 16 Gen Poor
Max ADI Late 55 Gen Good 3 Very Poor 23 Fair
Max LVORI Early 5 6 7
Max LVORI Late 3 9 4
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ074-042115-
Higher Elevations of Westmoreland-
Including the cities of Ligonier and Donegal
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Mcldy Pcldy Mcldy
Precip Type Snow/Fz Ra None Snow
Chance Precip (%) 50 0 20
Chance of Thunder (%) 0 0 0
Temp (24h trend) 32 (+4) 8 (-15) 33
RH % (24h trend) 57 (-24) 85 (-8) 62
Wind 20ft/early(mph) W 10 G23 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 11 G23 Lgt/Var Lgt/Var
Precip Amount 0.04 0.00 0.00
Precip Duration 1 1
Precip Begin 6 AM 7 AM
Precip End 1 PM 6 PM
Mixing Hgt(m-agl/msl) 1120 580
Mixing Hgt(ft-agl/msl)3680 1910
Transport Wnd (mph) NW 24 SW 13
Vent Rate (kt-ft) 94160 21790
Category Day 4 2
Inversion 24F/8am 5pm 23F/10am
Dispersion 5 5
Max ADI Early 44 Gen Good 6 Very Poor 18 Gen Poor
Max ADI Late 59 Gen Good 5 Very Poor 20 Gen Poor
Max LVORI Early 4 4 5
Max LVORI Late 3 6 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ075-042115-
Fayette-
Including the city of Uniontown
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Mcldy Pcldy Mcldy
Precip Type Snow/Fz Ra None Snow
Chance Precip (%) 50 0 20
Chance of Thunder (%) 0 0 0
Temp (24h trend) 32 (+2) 8 (-15) 37
RH % (24h trend) 64 (-15) 93 (-6) 73
Wind 20ft/early(mph) W 7 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 8 G17 Lgt/Var Lgt/Var
Precip Amount 0.04 0.00 0.00
Precip Duration 1 1
Precip Begin 6 AM 7 AM
Precip End 12 PM 1 PM
Mixing Hgt(m-agl/msl) 1200 670
Mixing Hgt(ft-agl/msl)3930 2190
Transport Wnd (mph) NW 18 SW 13
Vent Rate (kt-ft) 73170 34470
Category Day 4 3
Inversion 25F/7am 5pm 26F/10am
Dispersion 5 5
Max ADI Early 37 Fair 4 Very Poor 19 Gen Poor
Max ADI Late 51 Gen Good 3 Very Poor 23 Fair
Max LVORI Early 5 6 7
Max LVORI Late 3 9 4
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ076-042115-
Higher Elevations of Fayette-
Including the cities of Champion and Ohiopyle
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Mcldy Pcldy Mcldy
Precip Type Snow/Fz Ra None Snow
Chance Precip (%) 50 0 30
Chance of Thunder (%) 0 0 0
Temp (24h trend) 30 (+3) 8 (-14) 35
RH % (24h trend) 63 (-21) 90 (-7) 68
Wind 20ft/early(mph) W 7 G19 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 7 G19 Lgt/Var Lgt/Var
Precip Amount 0.05 0.00 0.00
Precip Duration 1 2
Precip Begin 6 AM 7 AM
Precip End 1 PM 6 PM
Mixing Hgt(m-agl/msl) 1010 620
Mixing Hgt(ft-agl/msl)3320 2020
Transport Wnd (mph) NW 21 SW 14
Vent Rate (kt-ft) 76880 26040
Category Day 4 2
Inversion 25F/9am 5pm 26F/11am
Dispersion 5 5
Max ADI Early 34 Fair 5 Very Poor 18 Gen Poor
Max ADI Late 49 Gen Good 5 Very Poor 25 Fair
Max LVORI Early 5 5 6
Max LVORI Late 3 7 4
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ077-042115-
Indiana-
Including the city of Indiana
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Pcldy Mclear Pcldy
Precip Type Snow None Snow
Chance Precip (%) 50 0 20
Chance of Thunder (%) 0 0 0
Temp (24h trend) 31 (+1) 7 (-16) 32
RH % (24h trend) 61 (-19) 91 (-3) 68
Wind 20ft/early(mph) W 10 G23 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 11 G24 Lgt/Var S 5
Precip Amount 0.01 0.00 0.00
Precip Duration 1 1
Precip Begin 6 AM 7 AM
Precip End 1 PM 6 PM
Mixing Hgt(m-agl/msl) 1160 610
Mixing Hgt(ft-agl/msl)3820 2000
Transport Wnd (mph) NW 24 S 13
Vent Rate (kt-ft) 91920 28960
Category Day 4 2
Inversion 25F/8am 5pm 22F/10am
Dispersion 5 5
Max ADI Early 61 Good 5 Very Poor 24 Fair
Max ADI Late 65 Good 4 Very Poor 30 Fair
Max LVORI Early 5 5 5
Max LVORI Late 3 8 4
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ078-042115-
Higher Elevations of Indiana-
Including the city of Armagh
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Mcldy Mclear Pcldy
Precip Type Snow/Fz Ra None Snow
Chance Precip (%) 50 0 20
Chance of Thunder (%) 0 0 0
Temp (24h trend) 31 (+2) 8 (-15) 31
RH % (24h trend) 60 (-21) 85 (-7) 66
Wind 20ft/early(mph) W 10 G23 Lgt/Var SE 5
Wind 20ft/late(mph) NW 11 G25 Lgt/Var S 5
Precip Amount 0.02 0.00 0.00
Precip Duration 1 1
Precip Begin 6 AM 7 AM
Precip End 1 PM 6 PM
Mixing Hgt(m-agl/msl) 1080 520
Mixing Hgt(ft-agl/msl)3540 1720
Transport Wnd (mph) NW 25 S 13
Vent Rate (kt-ft) 91300 18070
Category Day 4 2
Inversion 26F/9am 6pm 22F/10am
Dispersion 5 5
Max ADI Early 54 Gen Good 7 Poor 21 Fair
Max ADI Late 64 Good 5 Very Poor 23 Fair
Max LVORI Early 4 5 4
Max LVORI Late 3 6 4
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ001-042115-
Hancock-
Including the city of Weirton
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Pcldy Mclear Pcldy
Precip Type Snow None None
Chance Precip (%) 50 0 0
Chance of Thunder (%) 0 0 0
Temp (24h trend) 30 (0) 9 (-15) 33
RH % (24h trend) 56 (-17) 89 (-3) 64
Wind 20ft/early(mph) W 7 G18 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 8 G19 Lgt/Var Lgt/Var
Precip Amount 0.01 0.00 0.00
Precip Duration 1
Precip Begin 6 AM
Precip End 10 AM
Mixing Hgt(m-agl/msl) 1130 770
Mixing Hgt(ft-agl/msl)3710 2530
Transport Wnd (mph) NW 20 SW 12
Vent Rate (kt-ft) 77040 24180
Category Day 4 2
Inversion 26F/8am 6pm 21F/10am
Dispersion 5 5
Max ADI Early 54 Gen Good 3 Very Poor 17 Gen Poor
Max ADI Late 64 Good 4 Very Poor 31 Fair
Max LVORI Early 5 5 5
Max LVORI Late 2 6 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ002-042115-
Brooke-
Including the cities of Follansbee and Wellsburg
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Pcldy Mclear Pcldy
Precip Type Snow None Snow
Chance Precip (%) 50 0 20
Chance of Thunder (%) 0 0 0
Temp (24h trend) 31 (+1) 11 (-14) 34
RH % (24h trend) 55 (-19) 86 (-6) 65
Wind 20ft/early(mph) W 7 G18 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 8 G18 Lgt/Var Lgt/Var
Precip Amount 0.02 0.00 0.00
Precip Duration 1 1
Precip Begin 6 AM 7 AM
Precip End 10 AM 1 PM
Mixing Hgt(m-agl/msl) 1140 730
Mixing Hgt(ft-agl/msl)3750 2390
Transport Wnd (mph) NW 17 SW 12
Vent Rate (kt-ft) 63720 26140
Category Day 4 2
Inversion 28F/9am 5pm 23F/10am
Dispersion 5 5
Max ADI Early 50 Gen Good 3 Very Poor 18 Gen Poor
Max ADI Late 54 Gen Good 4 Very Poor 31 Fair
Max LVORI Early 5 5 6
Max LVORI Late 2 6 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ003-042115-
Ohio-
Including the city of Wheeling
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Snow None Snow
Chance Precip (%) 50 0 20
Chance of Thunder (%) 0 0 0
Temp (24h trend) 31 (+1) 11 (-14) 35
RH % (24h trend) 57 (-20) 87 (-7) 68
Wind 20ft/early(mph) W 7 G17 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 8 G18 Lgt/Var Lgt/Var
Precip Amount 0.02 0.00 0.00
Precip Duration 1 1
Precip Begin 6 AM 7 AM
Precip End 10 AM 1 PM
Mixing Hgt(m-agl/msl) 1080 710
Mixing Hgt(ft-agl/msl)3550 2340
Transport Wnd (mph) NW 16 SW 13
Vent Rate (kt-ft) 58850 30680
Category Day 3 3
Inversion 28F/9am 6pm 27F/11am
Dispersion 5 5
Max ADI Early 47 Gen Good 3 Very Poor 16 Gen Poor
Max ADI Late 50 Gen Good 4 Very Poor 27 Fair
Max LVORI Early 5 5 6
Max LVORI Late 2 7 4
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ004-042115-
Marshall-
Including the city of Moundsville
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Snow None Snow
Chance Precip (%) 40 0 20
Chance of Thunder (%) 0 0 0
Temp (24h trend) 33 (+4) 12 (-12) 37
RH % (24h trend) 60 (-20) 86 (-11) 71
Wind 20ft/early(mph) W 6 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 6 Lgt/Var Lgt/Var
Precip Amount 0.03 0.00 0.00
Precip Duration 1 1
Precip Begin 6 AM 7 AM
Precip End 10 AM 1 PM
Mixing Hgt(m-agl/msl) 1120 730
Mixing Hgt(ft-agl/msl)3670 2380
Transport Wnd (mph) NW 15 SW 12
Vent Rate (kt-ft) 55850 27040
Category Day 3 2
Inversion 28F/9am 5pm 25F/10am
Dispersion 5 5
Max ADI Early 36 Fair 3 Very Poor 19 Gen Poor
Max ADI Late 42 Gen Good 4 Very Poor 25 Fair
Max LVORI Early 5 5 6
Max LVORI Late 3 6 4
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ012-042115-
Wetzel-
Including the city of New Martinsville
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Mcldy Pcldy Mcldy
Precip Type Snow None Snow
Chance Precip (%) 50 0 20
Chance of Thunder (%) 0 0 0
Temp (24h trend) 32 (+4) 14 (-9) 36
RH % (24h trend) 63 (-18) 89 (-10) 77
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 5 Lgt/Var Lgt/Var
Precip Amount 0.04 0.00 0.00
Precip Duration 1 1
Precip Begin 6 AM 7 AM
Precip End 10 AM 1 PM
Mixing Hgt(m-agl/msl) 1090 660
Mixing Hgt(ft-agl/msl)3590 2180
Transport Wnd (mph) NW 13 SW 12
Vent Rate (kt-ft) 46270 24140
Category Day 3 2
Inversion 27F/9am 5pm 29F/11am
Dispersion 5 5
Max ADI Early 26 Fair 3 Very Poor 18 Gen Poor
Max ADI Late 34 Fair 4 Very Poor 23 Fair
Max LVORI Early 6 5 6
Max LVORI Late 3 6 5
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ021-042115-
Marion-
Including the city of Fairmont
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Mcldy Pcldy Mcldy
Precip Type Snow None Snow
Chance Precip (%) 50 0 20
Chance of Thunder (%) 0 0 0
Temp (24h trend) 31 (+3) 13 (-10) 36
RH % (24h trend) 67 (-13) 93 (-7) 79
Wind 20ft/early(mph) W 5 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 6 Lgt/Var Lgt/Var
Precip Amount 0.03 0.00 0.00
Precip Duration 1 1
Precip Begin 6 AM 7 AM
Precip End 11 AM 1 PM
Mixing Hgt(m-agl/msl) 1070 720
Mixing Hgt(ft-agl/msl)3520 2360
Transport Wnd (mph) NW 12 SW 13
Vent Rate (kt-ft) 41530 27170
Category Day 3 3
Inversion 24F/7am 6pm 27F/10am
Dispersion 5 5
Max ADI Early 24 Fair 3 Very Poor 20 Gen Poor
Max ADI Late 32 Fair 3 Very Poor 28 Fair
Max LVORI Early 6 6 8
Max LVORI Late 4 9 4
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ509-042115-
Monongalia-
Including the city of Morgantown
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Mcldy Pcldy Mcldy
Precip Type Snow/Fz Ra None Snow
Chance Precip (%) 50 0 20
Chance of Thunder (%) 0 0 0
Temp (24h trend) 32 (+3) 11 (-12) 37
RH % (24h trend) 66 (-14) 92 (-7) 76
Wind 20ft/early(mph) W 5 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 6 Lgt/Var Lgt/Var
Precip Amount 0.03 0.00 0.00
Precip Duration 1 1
Precip Begin 6 AM 7 AM
Precip End 11 AM 1 PM
Mixing Hgt(m-agl/msl) 1110 740
Mixing Hgt(ft-agl/msl)3650 2430
Transport Wnd (mph) NW 14 SW 13
Vent Rate (kt-ft) 64670 28530
Category Day 3 3
Inversion 25F/7am 5pm 27F/10am
Dispersion 5 5
Max ADI Early 28 Fair 3 Very Poor 19 Gen Poor
Max ADI Late 37 Fair 3 Very Poor 27 Fair
Max LVORI Early 5 6 8
Max LVORI Late 4 9 4
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ510-042115-
Ridges of Eastern Monongalia and Northwestern Preston-
Including the city of Coopers Rock
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Mcldy Pcldy Mcldy
Precip Type Snow/Fz Ra None Snow
Chance Precip (%) 50 0 30
Chance of Thunder (%) 0 0 0
Temp (24h trend) 29 (+3) 10 (-12) 34
RH % (24h trend) 69 (-17) 92 (-7) 76
Wind 20ft/early(mph) W 6 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 6 Lgt/Var Lgt/Var
Precip Amount 0.07 0.00 0.00
Precip Duration 1 1
Precip Begin 6 AM 7 AM
Precip End 12 PM 1 PM
Mixing Hgt(m-agl/msl) 820 640
Mixing Hgt(ft-agl/msl)2690 2090
Transport Wnd (mph) NW 14 SW 15
Vent Rate (kt-ft) 47480 29330
Category Day 3 3
Inversion 25F/9am 5pm 29F/11am
Dispersion 5 5
Max ADI Early 27 Fair 3 Very Poor 19 Gen Poor
Max ADI Late 34 Fair 4 Very Poor 24 Fair
Max LVORI Early 5 6 7
Max LVORI Late 4 9 4
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ511-042115-
Preston-
Including the cities of Kingwood and Bruceton Mills
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Mcldy Pcldy Mcldy
Precip Type Snow/Fz Ra None Snow
Chance Precip (%) 40 0 30
Chance of Thunder (%) 0 0 0
Temp (24h trend) 30 (+3) 11 (-11) 37
RH % (24h trend) 68 (-17) 94 (-6) 74
Wind 20ft/early(mph) W 6 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 6 Lgt/Var Lgt/Var
Precip Amount 0.05 0.00 0.00
Precip Duration 1 1
Precip Begin 6 AM 7 AM
Precip End 1 PM 1 PM
Mixing Hgt(m-agl/msl) 910 730
Mixing Hgt(ft-agl/msl)2990 2390
Transport Wnd (mph) NW 16 SW 14
Vent Rate (kt-ft) 61860 40250
Category Day 3 3
Inversion 23F/8am 5pm 27F/10am
Dispersion 5 5
Max ADI Early 31 Fair 4 Very Poor 22 Fair
Max ADI Late 38 Fair 4 Very Poor 24 Fair
Max LVORI Early 5 6 7
Max LVORI Late 4 9 4
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ512-042115-
Eastern Preston-
Including the cities of Terra Alta, Rowlesburg, and Hazelton
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Mcldy Pcldy Mcldy
Precip Type Snow/Fz Ra None Snow
Chance Precip (%) 40 0 40
Chance of Thunder (%) 0 0 0
Temp (24h trend) 29 (+3) 11 (-11) 35
RH % (24h trend) 70 (-18) 93 (-6) 74
Wind 20ft/early(mph) W 8 G21 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 7 G21 Lgt/Var Lgt/Var
Precip Amount 0.05 0.00 0.00
Precip Duration 1 2
Precip Begin 6 AM 6 AM
Precip End 1 PM 6 PM
Mixing Hgt(m-agl/msl) 810 640
Mixing Hgt(ft-agl/msl)2670 2090
Transport Wnd (mph) W 20 SW 14
Vent Rate (kt-ft) 59790 32960
Category Day 3 2
Inversion 25F/9am 5pm 25F/10am
Dispersion 5 5
Max ADI Early 32 Fair 6 Very Poor 21 Fair
Max ADI Late 41 Gen Good 6 Very Poor 22 Fair
Max LVORI Early 5 6 6
Max LVORI Late 4 8 4
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ513-042115-
Western Tucker-
Including the cities of Parsons, Hendricks, and Saint George
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Mcldy Pcldy Mcldy
Precip Type Snow/Fz Ra None Snow
Chance Precip (%) 40 0 40
Chance of Thunder (%) 0 0 0
Temp (24h trend) 30 (+1) 14 (-7) 37
RH % (24h trend) 66 (-16) 92 (-7) 69
Wind 20ft/early(mph) W 6 G19 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 7 G18 Lgt/Var Lgt/Var
Precip Amount 0.02 0.00 0.01
Precip Duration 1 2
Precip Begin 6 AM 6 AM
Precip End 1 PM 6 PM
Mixing Hgt(m-agl/msl) 790 690
Mixing Hgt(ft-agl/msl)2590 2280
Transport Wnd (mph) W 15 SW 12
Vent Rate (kt-ft) 47780 29630
Category Day 3 2
Inversion 23F/8am 6pm 26F/9am
Dispersion 5 5
Max ADI Early 33 Fair 5 Very Poor 21 Fair
Max ADI Late 38 Fair 5 Very Poor 20 Gen Poor
Max LVORI Early 5 6 5
Max LVORI Late 3 7 4
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ514-042115-
Eastern Tucker-
Including the cities of Davis, Thomas, and Canaan Valley
107 AM EST Thu Dec 4 2025
Today Tonight Fri
Cloud Cover Mcldy Mcldy Mcldy
Precip Type Snow/Fz Ra None Snow
Chance Precip (%) 20 0 50
Chance of Thunder (%) 0 0 0
Temp (24h trend) 27 (-1) 12 (-7) 33
RH % (24h trend) 76 (-11) 93 (-4) 76
Wind 20ft/early(mph) W 9 G29 Lgt/Var Lgt/Var
Wind 20ft/late(mph) NW 9 G29 Lgt/Var Lgt/Var
Precip Amount 0.01 0.00 0.02
Precip Duration 1 2
Precip Begin 6 AM 6 AM
Precip End 1 PM 6 PM
Mixing Hgt(m-agl/msl) 660 560
Mixing Hgt(ft-agl/msl)2160 1850
Transport Wnd (mph) NW 24 SW 14
Vent Rate (kt-ft) 66900 34000
Category Day 3 2
Inversion 22F/8am 4pm 24F/10am
Dispersion 5 5
Max ADI Early 38 Fair 10 Poor 20 Gen Poor
Max ADI Late 44 Gen Good 8 Poor 19 Gen Poor
Max LVORI Early 4 6 5
Max LVORI Late 4 6 5
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY...Mostly cloudy. Lows in the lower 20s. Highs in the
mid 30s. South winds around 5 mph.
.SUNDAY...Cloudy with a chance of snow. Lows in the mid 20s.
Highs in the mid 30s. Southwest winds around 5 mph.
.MONDAY...Mostly cloudy. Lows around 16. Highs in the upper 20s.
Northeast winds 5 to 10 mph.
.TUESDAY...Mostly cloudy. A chance of snow. Lows around 13. Highs
in the mid 30s. Southwest winds 5 to 10 mph.
.WEDNESDAY...Mostly cloudy with rain likely and a chance of snow.
Lows in the mid 20s. Highs in the upper 30s. Southwest winds
10 to 15 mph.
$$
CL