Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Pittsburgh, PA
Issued by NWS Pittsburgh, PA
481
FNUS51 KPBZ 200509
FWFPBZ
Fire Weather Planning Forecast
National Weather Service Pittsburgh PA
109 AM EDT Wed Aug 20 2025
.Discussion...
Showers and thunderstorms will accompany a cold front today as it
crosses the region. Lower temperatures and higher dewpoints will
keep MinRH values north of 60 degrees. Wind gusts should remain
under 20mph over the next couple days.
&&
OHZ039-202015-
Tuscarawas-
Including the cities of New Philadelphia and Dover
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Mcldy Pcldy Pcldy
Precip Type None None Showers
Chance Precip (%) 0 0 20
Chance of Thunder (%) 0 0 0
Temp (24h trend) 80 (-8) 64 (-1) 81
RH % (24h trend) 67 (+25) 100 (0) 62
20ft Wnd-Val/AM(mph) Lgt/Var NE 5
20ft Wnd-Rdg/PM(mph) NW 5 N 5 NE 6
Precip Amount 0.00 0.00 0.01
Precip Duration 0
Precip Begin 2 PM
Precip End Continuing
Mixing Hgt(m-agl/msl) 1050 1450
Mixing Hgt(ft-agl/msl)3460 4760
Transport Wnd (mph) N 9 NE 13
Vent Rate (kt-ft) 27070 41920
Dispersion 5 5
ADI early 21 Fair 17 Gen Poor 39 Fair
ADI late 38 Fair 9 Poor 67 Good
Max LVORI early 8 6 8
Max LVORI late 4 8 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ040-202015-
Carroll-
Including the cities of Carrollton and Malvern
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Mcldy Pcldy Pcldy
Precip Type Showers None Showers
Chance Precip (%) 20 0 20
Chance of Thunder (%) 0 0 0
Temp (24h trend) 80 (-8) 63 (-2) 81
RH % (24h trend) 67 (+28) 100 (0) 62
20ft Wnd-Val/AM(mph) Lgt/Var NE 5
20ft Wnd-Rdg/PM(mph) NW 5 N 6 NE 6
Precip Amount 0.01 0.00 0.01
Precip Duration 1 0
Precip Begin 8 AM 2 PM
Precip End 5 PM Continuing
Mixing Hgt(m-agl/msl) 1010 1530
Mixing Hgt(ft-agl/msl)3300 5030
Transport Wnd (mph) NW 8 NE 12
Vent Rate (kt-ft) 27260 40240
Dispersion 5 5
ADI early 19 Gen Poor 17 Gen Poor 35 Fair
ADI late 34 Fair 9 Poor 68 Good
Max LVORI early 8 6 8
Max LVORI late 4 8 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ041-202015-
Columbiana-
Including the cities of East Liverpool, Salem, and Columbiana
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Mcldy Pcldy Pcldy
Precip Type Tstms None Showers
Chance Precip (%) 20 0 20
Chance of Thunder (%) 20 0 0
Temp (24h trend) 81 (-7) 63 (-1) 81
RH % (24h trend) 67 (+30) 100 (0) 62
20ft Wnd-Val/AM(mph) Lgt/Var NE 5
20ft Wnd-Rdg/PM(mph) NW 5 N 5 NE 6
Precip Amount 0.02 0.00 0.01
Precip Duration 1 0
Precip Begin 6 AM 2 PM
Precip End 5 PM Continuing
Mixing Hgt(m-agl/msl) 1020 1530
Mixing Hgt(ft-agl/msl)3340 5020
Transport Wnd (mph) NW 8 NE 12
Vent Rate (kt-ft) 25490 42360
Dispersion 5 5
ADI early 18 Gen Poor 16 Gen Poor 33 Fair
ADI late 33 Fair 9 Poor 62 Good
Max LVORI early 8 6 7
Max LVORI late 4 8 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ048-202015-
Coshocton-
Including the city of Coshocton
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Mcldy Pcldy Pcldy
Precip Type None None Showers
Chance Precip (%) 0 0 20
Chance of Thunder (%) 0 0 0
Temp (24h trend) 80 (-9) 64 (-1) 81
RH % (24h trend) 68 (+23) 100 (0) 63
20ft Wnd-Val/AM(mph) Lgt/Var N 5
20ft Wnd-Rdg/PM(mph) N 5 N 5 NE 6
Precip Amount 0.00 0.00 0.01
Precip Duration 0
Precip Begin 2 PM
Precip End 6 PM
Mixing Hgt(m-agl/msl) 1060 1390
Mixing Hgt(ft-agl/msl)3470 4550
Transport Wnd (mph) N 10 NE 13
Vent Rate (kt-ft) 36810 41610
Dispersion 5 5
ADI early 23 Fair 16 Gen Poor 36 Fair
ADI late 41 Gen Good 10 Poor 68 Good
Max LVORI early 8 7 7
Max LVORI late 4 8 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ049-202015-
Harrison-
Including the city of Cadiz
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Showers None Tstms
Chance Precip (%) 20 0 20
Chance of Thunder (%) 0 0 20
Temp (24h trend) 81 (-7) 64 (-1) 81
RH % (24h trend) 65 (+25) 100 (0) 61
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var N 5 NE 5
Precip Amount 0.01 0.00 0.01
Precip Duration 1 0
Precip Begin 8 AM 2 PM
Precip End 6 PM Continuing
Mixing Hgt(m-agl/msl) 1150 1580
Mixing Hgt(ft-agl/msl)3770 5170
Transport Wnd (mph) N 9 NE 13
Vent Rate (kt-ft) 33780 38520
Dispersion 5 5
ADI early 14 Gen Poor 8 Poor 35 Fair
ADI late 34 Fair 8 Poor 69 Good
Max LVORI early 8 6 8
Max LVORI late 4 8 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ050-202015-
Jefferson OH-
Including the city of Steubenville
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Tstms None Tstms
Chance Precip (%) 30 0 30
Chance of Thunder (%) 20 0 20
Temp (24h trend) 82 (-6) 64 (-2) 81
RH % (24h trend) 63 (+26) 100 (+1) 59
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var N 5 NE 6
Precip Amount 0.02 0.00 0.01
Precip Duration 1 1
Precip Begin 7 AM 8 AM
Precip End 6 PM Continuing
Mixing Hgt(m-agl/msl) 1220 1550
Mixing Hgt(ft-agl/msl)4010 5070
Transport Wnd (mph) N 9 NE 12
Vent Rate (kt-ft) 34150 39040
Dispersion 5 5
ADI early 15 Gen Poor 8 Poor 36 Fair
ADI late 33 Fair 9 Poor 64 Good
Max LVORI early 8 6 8
Max LVORI late 4 8 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ057-202015-
Muskingum-
Including the city of Zanesville
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Pcldy Pcldy Pcldy
Precip Type None None Showers
Chance Precip (%) 0 0 20
Chance of Thunder (%) 0 0 0
Temp (24h trend) 81 (-8) 64 (-2) 81
RH % (24h trend) 66 (+22) 100 (0) 65
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var N 5
Precip Amount 0.00 0.00 0.01
Precip Duration 0
Precip Begin 2 PM
Precip End 6 PM
Mixing Hgt(m-agl/msl) 1110 1350
Mixing Hgt(ft-agl/msl)3630 4410
Transport Wnd (mph) N 9 NE 12
Vent Rate (kt-ft) 33970 36650
Dispersion 5 5
ADI early 18 Gen Poor 10 Poor 36 Fair
ADI late 37 Fair 9 Poor 59 Gen Good
Max LVORI early 9 7 6
Max LVORI late 4 8 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ058-202015-
Guernsey-
Including the city of Cambridge
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Pcldy Pcldy Pcldy
Precip Type None None Tstms
Chance Precip (%) 0 0 20
Chance of Thunder (%) 0 0 20
Temp (24h trend) 82 (-7) 64 (-1) 81
RH % (24h trend) 65 (+22) 100 (0) 63
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.00 0.01
Precip Duration 0
Precip Begin 2 PM
Precip End Continuing
Mixing Hgt(m-agl/msl) 1160 1490
Mixing Hgt(ft-agl/msl)3790 4880
Transport Wnd (mph) N 10 NE 12
Vent Rate (kt-ft) 34000 40380
Dispersion 5 5
ADI early 13 Gen Poor 8 Poor 37 Fair
ADI late 35 Fair 8 Poor 59 Gen Good
Max LVORI early 8 7 8
Max LVORI late 4 8 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ059-202015-
Belmont-
Including the cities of Martins Ferry and St. Clairsville
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Showers None Tstms
Chance Precip (%) 20 0 30
Chance of Thunder (%) 0 0 20
Temp (24h trend) 83 (-6) 65 (-1) 82
RH % (24h trend) 65 (+23) 100 (+1) 64
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var NE 5
Precip Amount 0.01 0.00 0.01
Precip Duration 1 1
Precip Begin 8 AM 8 AM
Precip End 6 PM Continuing
Mixing Hgt(m-agl/msl) 1120 1610
Mixing Hgt(ft-agl/msl)3660 5280
Transport Wnd (mph) NW 7 NE 12
Vent Rate (kt-ft) 27130 40520
Dispersion 5 5
ADI early 17 Gen Poor 8 Poor 36 Fair
ADI late 32 Fair 8 Poor 67 Good
Max LVORI early 8 7 8
Max LVORI late 4 8 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ068-202015-
Noble-
Including the city of Caldwell
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Showers None Tstms
Chance Precip (%) 20 0 20
Chance of Thunder (%) 0 0 20
Temp (24h trend) 83 (-6) 64 (-2) 81
RH % (24h trend) 65 (+20) 100 (0) 66
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.01 0.00 0.01
Precip Duration 0 0
Precip Begin 8 AM 2 PM
Precip End 6 PM 6 PM
Mixing Hgt(m-agl/msl) 1130 1510
Mixing Hgt(ft-agl/msl)3710 4940
Transport Wnd (mph) NW 7 NE 10
Vent Rate (kt-ft) 28410 35100
Dispersion 5 5
ADI early 15 Gen Poor 9 Poor 34 Fair
ADI late 36 Fair 8 Poor 56 Gen Good
Max LVORI early 9 7 8
Max LVORI late 4 8 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ069-202015-
Monroe-
Including the city of Woodsfield
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Tstms None Tstms
Chance Precip (%) 30 0 20
Chance of Thunder (%) 20 0 20
Temp (24h trend) 83 (-6) 65 (-1) 82
RH % (24h trend) 66 (+21) 100 (0) 66
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.02 0.00 0.01
Precip Duration 1 0
Precip Begin 8 AM 2 PM
Precip End 6 PM 6 PM
Mixing Hgt(m-agl/msl) 1190 1640
Mixing Hgt(ft-agl/msl)3900 5400
Transport Wnd (mph) N 8 NE 10
Vent Rate (kt-ft) 25940 42520
Dispersion 5 5
ADI early 16 Gen Poor 8 Poor 31 Fair
ADI late 32 Fair 9 Poor 67 Good
Max LVORI early 8 8 8
Max LVORI late 4 8 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ007-202015-
Mercer-
Including the cities of Sharon, Hermitage, and Grove City
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Mcldy Mcldy Pcldy
Precip Type Tstms None Showers
Chance Precip (%) 40 0 20
Chance of Thunder (%) 30 0 0
Temp (24h trend) 80 (-5) 62 (-1) 79
RH % (24h trend) 73 (+25) 100 (0) 66
20ft Wnd-Val/AM(mph) Lgt/Var NE 5
20ft Wnd-Rdg/PM(mph) NW 5 Lgt/Var NE 6
Precip Amount 0.03 0.00 0.01
Precip Duration 2 0
Precip Begin 6 AM 2 PM
Precip End 6 PM Continuing
Mixing Hgt(m-agl/msl) 980 1390
Mixing Hgt(ft-agl/msl)3200 4580
Transport Wnd (mph) N 9 NE 12
Vent Rate (kt-ft) 29410 45400
Dispersion 5 5
ADI early 14 Gen Poor 10 Poor 29 Fair
ADI late 31 Fair 9 Poor 56 Gen Good
Max LVORI early 9 8 5
Max LVORI late 5 8 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ008-202015-
Venango-
Including the cities of Oil City and Franklin
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Mcldy Mcldy Pcldy
Precip Type Tstms Tstms Showers
Chance Precip (%) 50 30 20
Chance of Thunder (%) 30 30 0
Temp (24h trend) 80 (-3) 61 (-1) 79
RH % (24h trend) 75 (+25) 100 (0) 68
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.04 0.01 0.01
Precip Duration 2 0 1
Precip Begin 6 AM Continuing 8 AM
Precip End Continuing 9 PM Continuing
Mixing Hgt(m-agl/msl) 960 1420
Mixing Hgt(ft-agl/msl)3130 4640
Transport Wnd (mph) NW 8 NE 10
Vent Rate (kt-ft) 24540 46400
Dispersion 5 5
ADI early 11 Poor 8 Poor 31 Fair
ADI late 24 Fair 9 Poor 56 Gen Good
Max LVORI early 8 8 5
Max LVORI late 5 8 4
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ009-202015-
Forest-
Including the city of Tionesta
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Mcldy Mcldy Mcldy
Precip Type Tstms Tstms Showers
Chance Precip (%) 60 40 20
Chance of Thunder (%) 30 30 0
Temp (24h trend) 79 (-1) 60 (-1) 77
RH % (24h trend) 70 (+20) 100 (0) 62
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.08 0.01 0.02
Precip Duration 3 1 1
Precip Begin 6 AM Continuing 8 AM
Precip End Continuing 11 PM Continuing
Mixing Hgt(m-agl/msl) 890 1220
Mixing Hgt(ft-agl/msl)2910 3990
Transport Wnd (mph) NW 7 NE 10
Vent Rate (kt-ft) 22580 39200
Dispersion 5 5
ADI early 12 Poor 5 Very Poor 32 Fair
ADI late 18 Gen Poor 5 Very Poor 52 Gen Good
Max LVORI early 8 9 5
Max LVORI late 5 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ013-202015-
Lawrence-
Including the cities of New Castle and Ellwood City
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Mcldy Pcldy Pcldy
Precip Type Tstms None Showers
Chance Precip (%) 30 0 30
Chance of Thunder (%) 30 0 0
Temp (24h trend) 82 (-5) 63 (+1) 81
RH % (24h trend) 68 (+27) 100 (0) 63
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var NE 5
Precip Amount 0.03 0.00 0.01
Precip Duration 2 1
Precip Begin 6 AM 2 PM
Precip End 6 PM Continuing
Mixing Hgt(m-agl/msl) 1070 1440
Mixing Hgt(ft-agl/msl)3510 4720
Transport Wnd (mph) NW 8 NE 10
Vent Rate (kt-ft) 27970 35820
Dispersion 5 5
ADI early 15 Gen Poor 8 Poor 32 Fair
ADI late 31 Fair 8 Poor 56 Gen Good
Max LVORI early 8 8 6
Max LVORI late 4 8 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ014-202015-
Butler-
Including the city of Butler
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Mcldy Pcldy Pcldy
Precip Type Tstms Tstms Showers
Chance Precip (%) 40 30 30
Chance of Thunder (%) 30 30 0
Temp (24h trend) 82 (-4) 62 (-1) 80
RH % (24h trend) 71 (+25) 100 (0) 65
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.04 0.00 0.02
Precip Duration 2 0 1
Precip Begin 6 AM Continuing 8 AM
Precip End Continuing 9 PM Continuing
Mixing Hgt(m-agl/msl) 980 1470
Mixing Hgt(ft-agl/msl)3220 4840
Transport Wnd (mph) NW 6 NE 10
Vent Rate (kt-ft) 20080 36460
Dispersion 5 5
ADI early 13 Gen Poor 7 Poor 38 Fair
ADI late 24 Fair 8 Poor 55 Gen Good
Max LVORI early 8 8 8
Max LVORI late 5 8 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ015-202015-
Clarion-
Including the city of Clarion
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Mcldy Mcldy Pcldy
Precip Type Tstms Tstms Showers
Chance Precip (%) 60 40 30
Chance of Thunder (%) 30 30 0
Temp (24h trend) 82 (0) 62 (0) 79
RH % (24h trend) 66 (+17) 100 (0) 62
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.06 0.01 0.02
Precip Duration 3 1 1
Precip Begin 6 AM Continuing 8 AM
Precip End Continuing 9 PM Continuing
Mixing Hgt(m-agl/msl) 960 1330
Mixing Hgt(ft-agl/msl)3150 4360
Transport Wnd (mph) W 6 NE 10
Vent Rate (kt-ft) 19080 38040
Dispersion 5 5
ADI early 15 Gen Poor 6 Very Poor 35 Fair
ADI late 18 Gen Poor 8 Poor 52 Gen Good
Max LVORI early 8 8 8
Max LVORI late 5 8 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ016-202015-
Jefferson PA-
Including the cities of Punxsutawney and Brookville
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Mcldy Mcldy Pcldy
Precip Type Tstms Tstms Showers
Chance Precip (%) 70 50 20
Chance of Thunder (%) 30 30 0
Temp (24h trend) 80 (+1) 61 (-1) 78
RH % (24h trend) 66 (+12) 100 (+1) 61
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.11 0.03 0.02
Precip Duration 3 1 1
Precip Begin 6 AM Continuing 8 AM
Precip End Continuing 12 AM Continuing
Mixing Hgt(m-agl/msl) 880 1330
Mixing Hgt(ft-agl/msl)2900 4370
Transport Wnd (mph) W 6 NE 10
Vent Rate (kt-ft) 19350 37270
Dispersion 5 5
ADI early 17 Gen Poor 6 Very Poor 32 Fair
ADI late 18 Gen Poor 7 Poor 44 Gen Good
Max LVORI early 8 7 7
Max LVORI late 4 8 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ020-202015-
Beaver-
Including the cities of Aliquippa, Beaver Falls, Ambridge,
and Monaca
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Mcldy Pcldy Pcldy
Precip Type Tstms None Tstms
Chance Precip (%) 30 0 30
Chance of Thunder (%) 30 0 20
Temp (24h trend) 82 (-6) 64 (0) 81
RH % (24h trend) 64 (+32) 100 (0) 59
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var NE 5
Precip Amount 0.03 0.00 0.01
Precip Duration 2 1
Precip Begin 6 AM 2 PM
Precip End 6 PM Continuing
Mixing Hgt(m-agl/msl) 1090 1570
Mixing Hgt(ft-agl/msl)3590 5150
Transport Wnd (mph) NW 7 NE 10
Vent Rate (kt-ft) 25460 35310
Dispersion 5 5
ADI early 15 Gen Poor 7 Poor 38 Fair
ADI late 29 Fair 7 Poor 60 Gen Good
Max LVORI early 8 6 6
Max LVORI late 4 8 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ021-202015-
Allegheny-
Including the city of Pittsburgh Metro Area
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Mcldy Pcldy Pcldy
Precip Type Tstms Tstms Tstms
Chance Precip (%) 40 30 30
Chance of Thunder (%) 30 30 20
Temp (24h trend) 83 (-4) 65 (-1) 81
RH % (24h trend) 66 (+24) 100 (+2) 62
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var NE 6
Precip Amount 0.03 0.00 0.02
Precip Duration 2 1 1
Precip Begin 6 AM Continuing 8 AM
Precip End Continuing 9 PM Continuing
Mixing Hgt(m-agl/msl) 1140 1640
Mixing Hgt(ft-agl/msl)3730 5390
Transport Wnd (mph) NW 7 NE 10
Vent Rate (kt-ft) 30010 38180
Dispersion 5 5
ADI early 18 Gen Poor 7 Poor 41 Gen Good
ADI late 25 Fair 8 Poor 57 Gen Good
Max LVORI early 7 6 8
Max LVORI late 4 8 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ022-202015-
Armstrong-
Including the cities of Kittanning and Ford City
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Mcldy Pcldy Pcldy
Precip Type Tstms Tstms Showers
Chance Precip (%) 50 50 30
Chance of Thunder (%) 30 30 0
Temp (24h trend) 83 (-1) 63 (-1) 80
RH % (24h trend) 67 (+14) 100 (0) 63
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.08 0.03 0.02
Precip Duration 2 1 1
Precip Begin 6 AM Continuing 8 AM
Precip End Continuing 9 PM Continuing
Mixing Hgt(m-agl/msl) 920 1390
Mixing Hgt(ft-agl/msl)3010 4580
Transport Wnd (mph) W 6 NE 9
Vent Rate (kt-ft) 22200 37830
Dispersion 5 5
ADI early 16 Gen Poor 5 Very Poor 37 Fair
ADI late 19 Gen Poor 7 Poor 42 Gen Good
Max LVORI early 8 8 7
Max LVORI late 5 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ029-202015-
Washington-
Including the cities of Washington and Canonsburg
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Mcldy Pcldy Pcldy
Precip Type Tstms None Tstms
Chance Precip (%) 40 0 30
Chance of Thunder (%) 30 0 20
Temp (24h trend) 83 (-4) 65 (0) 81
RH % (24h trend) 66 (+23) 100 (+2) 62
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var NE 6
Precip Amount 0.04 0.00 0.02
Precip Duration 2 2
Precip Begin 8 AM 8 AM
Precip End 6 PM Continuing
Mixing Hgt(m-agl/msl) 1150 1560
Mixing Hgt(ft-agl/msl)3770 5110
Transport Wnd (mph) NW 6 NE 12
Vent Rate (kt-ft) 28330 39090
Dispersion 5 5
ADI early 17 Gen Poor 7 Poor 35 Fair
ADI late 28 Fair 7 Poor 62 Good
Max LVORI early 7 6 8
Max LVORI late 4 8 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ031-202015-
Greene-
Including the city of Waynesburg
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Tstms Tstms Tstms
Chance Precip (%) 40 30 30
Chance of Thunder (%) 40 30 20
Temp (24h trend) 83 (-5) 66 (0) 81
RH % (24h trend) 70 (+24) 100 (+3) 68
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var NE 5
Precip Amount 0.05 0.01 0.02
Precip Duration 2 0 2
Precip Begin 8 AM Continuing 8 AM
Precip End Continuing 8 PM Continuing
Mixing Hgt(m-agl/msl) 1200 1540
Mixing Hgt(ft-agl/msl)3940 5060
Transport Wnd (mph) NW 6 NE 10
Vent Rate (kt-ft) 25590 40700
Dispersion 5 5
ADI early 16 Gen Poor 6 Very Poor 33 Fair
ADI late 32 Fair 5 Very Poor 60 Gen Good
Max LVORI early 6 7 8
Max LVORI late 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ073-202015-
Westmoreland-
Including the cities of Murrysville, Greensburg, New Kensington,
Lower Burrell, Latrobe, and Monessen
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Mcldy Pcldy Pcldy
Precip Type Tstms Tstms Tstms
Chance Precip (%) 60 40 30
Chance of Thunder (%) 40 40 20
Temp (24h trend) 83 (-2) 65 (0) 80
RH % (24h trend) 70 (+17) 100 (+2) 67
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var NE 6
Precip Amount 0.08 0.02 0.02
Precip Duration 3 1 2
Precip Begin 6 AM Continuing 8 AM
Precip End Continuing 12 AM Continuing
Mixing Hgt(m-agl/msl) 1060 1510
Mixing Hgt(ft-agl/msl)3480 4950
Transport Wnd (mph) W 6 NE 9
Vent Rate (kt-ft) 22520 36110
Dispersion 5 5
ADI early 20 Gen Poor 5 Very Poor 31 Fair
ADI late 22 Fair 6 Very Poor 49 Gen Good
Max LVORI early 7 9 8
Max LVORI late 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ074-202015-
Higher Elevations of Westmoreland-
Including the cities of Ligonier and Donegal
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Mcldy Pcldy Pcldy
Precip Type Tstms Tstms Tstms
Chance Precip (%) 60 50 40
Chance of Thunder (%) 40 40 20
Temp (24h trend) 82 (+2) 64 (0) 79
RH % (24h trend) 65 (+1) 100 (+4) 62
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.14 0.05 0.02
Precip Duration 3 1 2
Precip Begin 6 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Mixing Hgt(m-agl/msl) 1030 1380
Mixing Hgt(ft-agl/msl)3380 4540
Transport Wnd (mph) SW 7 E 8
Vent Rate (kt-ft) 29590 28500
Dispersion 5 5
ADI early 18 Gen Poor 4 Very Poor 26 Fair
ADI late 25 Fair 4 Very Poor 29 Fair
Max LVORI early 6 8 7
Max LVORI late 3 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ075-202015-
Fayette-
Including the city of Uniontown
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Mcldy Pcldy Pcldy
Precip Type Tstms Tstms Tstms
Chance Precip (%) 60 30 30
Chance of Thunder (%) 40 30 20
Temp (24h trend) 83 (-3) 66 (-1) 81
RH % (24h trend) 69 (+19) 100 (+6) 67
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var NE 5
Precip Amount 0.06 0.01 0.02
Precip Duration 3 1 2
Precip Begin 6 AM Continuing 8 AM
Precip End Continuing 10 PM Continuing
Mixing Hgt(m-agl/msl) 1140 1520
Mixing Hgt(ft-agl/msl)3730 4980
Transport Wnd (mph) NW 6 NE 9
Vent Rate (kt-ft) 21250 36770
Dispersion 5 5
ADI early 16 Gen Poor 4 Very Poor 28 Fair
ADI late 26 Fair 4 Very Poor 54 Gen Good
Max LVORI early 6 8 8
Max LVORI late 3 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ076-202015-
Higher Elevations of Fayette-
Including the cities of Champion and Ohiopyle
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Mcldy Pcldy Pcldy
Precip Type Tstms Tstms Tstms
Chance Precip (%) 60 40 40
Chance of Thunder (%) 40 40 20
Temp (24h trend) 82 (0) 63 (-1) 79
RH % (24h trend) 70 (+6) 100 (+3) 68
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.10 0.02 0.02
Precip Duration 3 1 2
Precip Begin 6 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Mixing Hgt(m-agl/msl) 1020 1280
Mixing Hgt(ft-agl/msl)3360 4200
Transport Wnd (mph) W 6 NE 8
Vent Rate (kt-ft) 28260 25360
Dispersion 5 5
ADI early 14 Gen Poor 4 Very Poor 24 Fair
ADI late 23 Fair 4 Very Poor 31 Fair
Max LVORI early 7 9 8
Max LVORI late 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ077-202015-
Indiana-
Including the city of Indiana
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Mcldy Pcldy Pcldy
Precip Type Tstms Tstms Showers
Chance Precip (%) 60 40 30
Chance of Thunder (%) 40 40 0
Temp (24h trend) 81 (0) 63 (-1) 78
RH % (24h trend) 69 (+8) 100 (+1) 64
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var NE 5
Precip Amount 0.10 0.07 0.02
Precip Duration 3 1 2
Precip Begin 6 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Mixing Hgt(m-agl/msl) 920 1400
Mixing Hgt(ft-agl/msl)3030 4590
Transport Wnd (mph) W 6 NE 9
Vent Rate (kt-ft) 20400 32890
Dispersion 5 5
ADI early 20 Gen Poor 5 Very Poor 30 Fair
ADI late 21 Fair 8 Poor 37 Fair
Max LVORI early 8 8 8
Max LVORI late 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ078-202015-
Higher Elevations of Indiana-
Including the city of Armagh
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Mcldy Pcldy Pcldy
Precip Type Tstms Tstms Showers
Chance Precip (%) 60 40 30
Chance of Thunder (%) 40 40 0
Temp (24h trend) 80 (+2) 64 (0) 76
RH % (24h trend) 70 (+5) 99 (+1) 67
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.12 0.03 0.02
Precip Duration 3 1 2
Precip Begin 6 AM Continuing 8 AM
Precip End Continuing 12 AM Continuing
Mixing Hgt(m-agl/msl) 850 1360
Mixing Hgt(ft-agl/msl)2790 4460
Transport Wnd (mph) W 6 NE 9
Vent Rate (kt-ft) 17030 31440
Dispersion 5 5
ADI early 19 Gen Poor 4 Very Poor 28 Fair
ADI late 22 Fair 8 Poor 35 Fair
Max LVORI early 7 8 7
Max LVORI late 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ001-202015-
Hancock-
Including the city of Weirton
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Tstms None Tstms
Chance Precip (%) 30 0 30
Chance of Thunder (%) 20 0 20
Temp (24h trend) 82 (-6) 65 (-1) 81
RH % (24h trend) 62 (+25) 99 (0) 59
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var NE 5
Precip Amount 0.03 0.00 0.01
Precip Duration 1 1
Precip Begin 6 AM 2 PM
Precip End 6 PM Continuing
Mixing Hgt(m-agl/msl) 1230 1540
Mixing Hgt(ft-agl/msl)4030 5060
Transport Wnd (mph) N 8 NE 12
Vent Rate (kt-ft) 31260 33850
Dispersion 5 5
ADI early 15 Gen Poor 8 Poor 39 Fair
ADI late 31 Fair 8 Poor 64 Good
Max LVORI early 8 5 7
Max LVORI late 4 8 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ002-202015-
Brooke-
Including the cities of Follansbee and Wellsburg
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Tstms None Tstms
Chance Precip (%) 30 0 30
Chance of Thunder (%) 20 0 20
Temp (24h trend) 83 (-6) 66 (0) 82
RH % (24h trend) 62 (+24) 99 (+2) 59
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var NE 5
Precip Amount 0.02 0.00 0.02
Precip Duration 2 1
Precip Begin 8 AM 8 AM
Precip End 6 PM Continuing
Mixing Hgt(m-agl/msl) 1220 1590
Mixing Hgt(ft-agl/msl)3990 5220
Transport Wnd (mph) N 8 NE 12
Vent Rate (kt-ft) 28840 39320
Dispersion 5 5
ADI early 18 Gen Poor 8 Poor 39 Fair
ADI late 29 Fair 7 Poor 66 Good
Max LVORI early 7 5 7
Max LVORI late 4 8 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ003-202015-
Ohio-
Including the city of Wheeling
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Tstms None Tstms
Chance Precip (%) 30 0 30
Chance of Thunder (%) 20 0 20
Temp (24h trend) 83 (-6) 66 (0) 82
RH % (24h trend) 65 (+24) 100 (+2) 63
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var NE 5
Precip Amount 0.02 0.00 0.02
Precip Duration 1 1
Precip Begin 8 AM 8 AM
Precip End 6 PM Continuing
Mixing Hgt(m-agl/msl) 1150 1650
Mixing Hgt(ft-agl/msl)3760 5420
Transport Wnd (mph) NW 6 NE 12
Vent Rate (kt-ft) 27410 40060
Dispersion 5 5
ADI early 18 Gen Poor 7 Poor 33 Fair
ADI late 31 Fair 8 Poor 68 Good
Max LVORI early 8 6 8
Max LVORI late 4 8 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ004-202015-
Marshall-
Including the city of Moundsville
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Tstms Tstms Tstms
Chance Precip (%) 30 20 30
Chance of Thunder (%) 20 20 20
Temp (24h trend) 83 (-6) 66 (0) 83
RH % (24h trend) 69 (+24) 100 (+2) 68
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.03 0.00 0.02
Precip Duration 1 0 1
Precip Begin 8 AM Continuing 8 AM
Precip End Continuing 8 PM 6 PM
Mixing Hgt(m-agl/msl) 1220 1720
Mixing Hgt(ft-agl/msl)3990 5650
Transport Wnd (mph) NW 6 NE 10
Vent Rate (kt-ft) 25830 42840
Dispersion 5 5
ADI early 16 Gen Poor 7 Poor 36 Fair
ADI late 31 Fair 8 Poor 67 Good
Max LVORI early 7 7 8
Max LVORI late 4 8 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ012-202015-
Wetzel-
Including the city of New Martinsville
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Tstms Tstms Tstms
Chance Precip (%) 40 30 30
Chance of Thunder (%) 30 30 20
Temp (24h trend) 83 (-5) 66 (-1) 83
RH % (24h trend) 72 (+26) 100 (+2) 69
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.02 0.01 0.01
Precip Duration 1 0 1
Precip Begin 8 AM Continuing 8 AM
Precip End Continuing 8 PM 6 PM
Mixing Hgt(m-agl/msl) 1190 1620
Mixing Hgt(ft-agl/msl)3910 5310
Transport Wnd (mph) NW 6 NE 12
Vent Rate (kt-ft) 23670 41890
Dispersion 5 5
ADI early 15 Gen Poor 6 Very Poor 36 Fair
ADI late 32 Fair 8 Poor 70 Good
Max LVORI early 6 8 8
Max LVORI late 4 8 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ021-202015-
Marion-
Including the city of Fairmont
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Tstms Tstms Tstms
Chance Precip (%) 50 40 40
Chance of Thunder (%) 40 40 20
Temp (24h trend) 83 (-4) 66 (0) 81
RH % (24h trend) 71 (+27) 100 (+5) 70
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.04 0.01 0.03
Precip Duration 2 1 1
Precip Begin 8 AM Continuing 8 AM
Precip End Continuing 9 PM Continuing
Mixing Hgt(m-agl/msl) 1240 1420
Mixing Hgt(ft-agl/msl)4080 4650
Transport Wnd (mph) W 6 NE 10
Vent Rate (kt-ft) 25010 38340
Dispersion 5 5
ADI early 17 Gen Poor 5 Very Poor 33 Fair
ADI late 29 Fair 5 Very Poor 57 Gen Good
Max LVORI early 6 9 8
Max LVORI late 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ509-202015-
Monongalia-
Including the city of Morgantown
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Tstms Tstms Tstms
Chance Precip (%) 50 30 40
Chance of Thunder (%) 40 30 20
Temp (24h trend) 83 (-4) 66 (-1) 81
RH % (24h trend) 72 (+25) 100 (+7) 70
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.05 0.01 0.03
Precip Duration 2 1 2
Precip Begin 8 AM Continuing 8 AM
Precip End Continuing 10 PM Continuing
Mixing Hgt(m-agl/msl) 1160 1460
Mixing Hgt(ft-agl/msl)3810 4800
Transport Wnd (mph) W 6 NE 10
Vent Rate (kt-ft) 24530 35880
Dispersion 5 5
ADI early 17 Gen Poor 5 Very Poor 31 Fair
ADI late 26 Fair 5 Very Poor 56 Gen Good
Max LVORI early 5 8 8
Max LVORI late 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ510-202015-
Ridges of Eastern Monongalia and Northwestern Preston-
Including the city of Coopers Rock
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Tstms Tstms Tstms
Chance Precip (%) 60 40 40
Chance of Thunder (%) 40 40 20
Temp (24h trend) 80 (-3) 64 (-1) 79
RH % (24h trend) 71 (+14) 100 (+6) 71
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.06 0.01 0.04
Precip Duration 4 1 2
Precip Begin 8 AM Continuing 8 AM
Precip End Continuing 10 PM Continuing
Mixing Hgt(m-agl/msl) 1100 1350
Mixing Hgt(ft-agl/msl)3600 4440
Transport Wnd (mph) W 6 NE 10
Vent Rate (kt-ft) 18780 29510
Dispersion 5 5
ADI early 16 Gen Poor 4 Very Poor 27 Fair
ADI late 23 Fair 4 Very Poor 38 Fair
Max LVORI early 6 9 8
Max LVORI late 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ511-202015-
Preston-
Including the cities of Kingwood and Bruceton Mills
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Tstms Tstms Tstms
Chance Precip (%) 60 50 40
Chance of Thunder (%) 50 50 20
Temp (24h trend) 83 (-1) 64 (-1) 79
RH % (24h trend) 69 (+11) 100 (+5) 68
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.08 0.03 0.03
Precip Duration 4 1 2
Precip Begin 6 AM Continuing 8 AM
Precip End Continuing 1 AM Continuing
Mixing Hgt(m-agl/msl) 1190 1430
Mixing Hgt(ft-agl/msl)3890 4700
Transport Wnd (mph) W 6 NE 10
Vent Rate (kt-ft) 21780 31240
Dispersion 5 5
ADI early 21 Fair 3 Very Poor 32 Fair
ADI late 26 Fair 3 Very Poor 39 Fair
Max LVORI early 7 9 8
Max LVORI late 3 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ512-202015-
Eastern Preston-
Including the cities of Terra Alta, Rowlesburg, and Hazelton
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Tstms Tstms Tstms
Chance Precip (%) 60 70 50
Chance of Thunder (%) 50 50 20
Temp (24h trend) 81 (0) 63 (-1) 77
RH % (24h trend) 71 (+8) 100 (+4) 69
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.15 0.09 0.04
Precip Duration 4 2 2
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Mixing Hgt(m-agl/msl) 1050 1240
Mixing Hgt(ft-agl/msl)3430 4080
Transport Wnd (mph) W 6 NE 9
Vent Rate (kt-ft) 19440 31120
Dispersion 5 5
ADI early 22 Fair 4 Very Poor 29 Fair
ADI late 23 Fair 4 Very Poor 32 Fair
Max LVORI early 7 9 8
Max LVORI late 4 9 4
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ513-202015-
Western Tucker-
Including the cities of Parsons, Hendricks, and Saint George
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Tstms Tstms Tstms
Chance Precip (%) 70 60 50
Chance of Thunder (%) 50 50 20
Temp (24h trend) 82 (-1) 63 (-1) 79
RH % (24h trend) 67 (+15) 100 (+5) 64
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.14 0.07 0.03
Precip Duration 4 2 2
Precip Begin 9 AM Continuing 8 AM
Precip End Continuing 2 AM Continuing
Mixing Hgt(m-agl/msl) 1150 1330
Mixing Hgt(ft-agl/msl)3760 4380
Transport Wnd (mph) W 6 NE 9
Vent Rate (kt-ft) 33720 28200
Dispersion 5 5
ADI early 25 Fair 3 Very Poor 30 Fair
ADI late 27 Fair 3 Very Poor 36 Fair
Max LVORI early 6 9 8
Max LVORI late 3 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ514-202015-
Eastern Tucker-
Including the cities of Davis, Thomas, and Canaan Valley
109 AM EDT Wed Aug 20 2025
Today Tonight Thu
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Tstms Tstms Tstms
Chance Precip (%) 70 70 50
Chance of Thunder (%) 50 50 20
Temp (24h trend) 78 (+2) 60 (-1) 73
RH % (24h trend) 76 (+7) 100 (+1) 77
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.36 0.23 0.04
Precip Duration 4 3 2
Precip Begin 10 AM Continuing Continuing
Precip End Continuing Continuing Continuing
Mixing Hgt(m-agl/msl) 900 1130
Mixing Hgt(ft-agl/msl)2950 3720
Transport Wnd (mph) SW 6 NE 8
Vent Rate (kt-ft) 26750 21570
Dispersion 5 5
ADI early 19 Gen Poor 3 Very Poor 21 Fair
ADI late 19 Gen Poor 4 Very Poor 27 Fair
Max LVORI early 7 9 8
Max LVORI late 5 9 4
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY...Mostly clear. Patchy dense fog. Lows around 60. Highs
in the lower 80s. Northeast winds around 5 mph.
.SATURDAY...Mostly clear. A chance of showers. Lows around 60.
Highs in the mid 80s. Light winds.
.SUNDAY...Mostly cloudy. A chance of showers and thunderstorms.
Lows in the lower 60s. Highs in the lower 80s. Southwest winds
5 to 10 mph.
.MONDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 50s. Highs in the lower 70s. West winds 5 to
10 mph.
.TUESDAY...Mostly clear. Lows in the lower 50s. Highs in the
lower 70s. West winds 5 to 10 mph.
$$