Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Pittsburgh, PA
Issued by NWS Pittsburgh, PA
325
FNUS51 KPBZ 201720
FWFPBZ
Fire Weather Planning Forecast
National Weather Service Pittsburgh PA
120 PM EDT Wed Aug 20 2025
.Discussion...
The chance for isolated showers will continue through tomorrow
resulting in a minimum relative humidity at/above 55%. Wind will
be out of the north-northeast around 5-10 mph with gusts in
eastern Ohio up to 15 mph.
Friday is forecast to be drier with a minimum relative humidity
at/above 40%. From Thursday night into Friday, light wind will
gradually veer from northeast to east.
&&
OHZ039-210830-
Tuscarawas-
Including the cities of New Philadelphia and Dover
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Pcldy Pcldy
Precip Type None None None None
Chance Precip (%) 0 0 0 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 64 (-5) 81 (+1) 62 85
RH % (24h trend) 100 (+3) 63 (-7) 100 49
20ft Wnd-Val/AM(mph) N 5 Lgt/Var
20ft Wnd-Rdg/PM(mph) N 5 N 6 N 5 Lgt/Var
Precip Amount 0.00 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt(m-agl/msl) 1100 2070
Mixing Hgt(ft-agl/msl) 3600 6800
Transport Wnd (mph) N 10 NE 5
Vent Rate (kt-ft) 42320 4400
Dispersion 5 3
ADI early 17 Gen Poor 27 Fair 8 Poor 25 Fair
ADI late 10 Poor 45 Gen Good 5 Very Poor 37 Fair
Max LVORI early 6 8 6 8
Max LVORI late 7 3 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ040-210830-
Carroll-
Including the cities of Carrollton and Malvern
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Mcldy Pcldy Pcldy
Precip Type None None None None
Chance Precip (%) 0 0 0 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 64 (-4) 81 (+1) 62 84
RH % (24h trend) 100 (+2) 64 (-5) 100 48
20ft Wnd-Val/AM(mph) NE 6 Lgt/Var
20ft Wnd-Rdg/PM(mph) N 6 NE 6 N 5 Lgt/Var
Precip Amount 0.00 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt(m-agl/msl) 1070 1960
Mixing Hgt(ft-agl/msl) 3520 6420
Transport Wnd (mph) NE 9 NE 5
Vent Rate (kt-ft) 40240 4140
Dispersion 5 3
ADI early 17 Gen Poor 25 Fair 17 Gen Poor 23 Fair
ADI late 10 Poor 40 Fair 5 Very Poor 35 Fair
Max LVORI early 6 6 6 9
Max LVORI late 8 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ041-210830-
Columbiana-
Including the cities of East Liverpool, Salem, and Columbiana
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Pcldy Mclear
Precip Type None None None None
Chance Precip (%) 0 0 0 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 64 (-4) 80 (-1) 61 84
RH % (24h trend) 100 (+2) 65 (-4) 100 47
20ft Wnd-Val/AM(mph) N 5 Lgt/Var
20ft Wnd-Rdg/PM(mph) N 6 N 6 N 5 Lgt/Var
Precip Amount 0.00 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt(m-agl/msl) 1020 1870
Mixing Hgt(ft-agl/msl) 3350 6140
Transport Wnd (mph) N 10 NE 3
Vent Rate (kt-ft) 42360 5740
Dispersion 5 3
ADI early 17 Gen Poor 23 Fair 10 Poor 22 Fair
ADI late 10 Poor 39 Fair 4 Very Poor 28 Fair
Max LVORI early 6 5 6 9
Max LVORI late 8 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ048-210830-
Coshocton-
Including the city of Coshocton
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Pcldy Pcldy
Precip Type None None None None
Chance Precip (%) 0 0 0 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 64 (-5) 81 (+1) 62 85
RH % (24h trend) 100 (0) 64 (-6) 100 51
20ft Wnd-Val/AM(mph) N 5 Lgt/Var
20ft Wnd-Rdg/PM(mph) N 5 N 6 N 5 Lgt/Var
Precip Amount 0.00 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt(m-agl/msl) 1100 1970
Mixing Hgt(ft-agl/msl) 3620 6450
Transport Wnd (mph) N 12 NE 5
Vent Rate (kt-ft) 44370 4140
Dispersion 5 3
ADI early 18 Gen Poor 38 Fair 17 Gen Poor 23 Fair
ADI late 10 Poor 49 Gen Good 5 Very Poor 34 Fair
Max LVORI early 6 7 6 9
Max LVORI late 7 3 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ049-210830-
Harrison-
Including the city of Cadiz
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Pcldy Mclear
Precip Type None None None None
Chance Precip (%) 0 0 0 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 64 (-5) 81 (0) 63 85
RH % (24h trend) 100 (+2) 62 (-5) 100 47
20ft Wnd-Val/AM(mph) N 5 Lgt/Var
20ft Wnd-Rdg/PM(mph) N 5 N 6 Lgt/Var Lgt/Var
Precip Amount 0.00 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt(m-agl/msl) 1090 2040
Mixing Hgt(ft-agl/msl) 3580 6690
Transport Wnd (mph) N 9 NE 6
Vent Rate (kt-ft) 38520 4310
Dispersion 5 3
ADI early 15 Gen Poor 22 Fair 8 Poor 27 Fair
ADI late 9 Poor 40 Fair 4 Very Poor 44 Gen Good
Max LVORI early 7 8 6 9
Max LVORI late 8 3 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ050-210830-
Jefferson OH-
Including the city of Steubenville
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Pcldy Mclear
Precip Type None Showers None None
Chance Precip (%) 0 20 0 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 65 (-4) 82 (0) 63 85
RH % (24h trend) 99 (-1) 61 (-4) 99 44
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) N 5 N 6 Lgt/Var Lgt/Var
Precip Amount 0.00 0.04 0.00 0.00
Precip Duration 0
Precip Begin 2 PM
Precip End 5 PM
Mixing Hgt(m-agl/msl) 1050 2050
Mixing Hgt(ft-agl/msl) 3440 6720
Transport Wnd (mph) N 9 NE 6
Vent Rate (kt-ft) 34280 5570
Dispersion 5 3
ADI early 13 Gen Poor 21 Fair 8 Poor 24 Fair
ADI late 9 Poor 36 Fair 4 Very Poor 44 Gen Good
Max LVORI early 6 8 6 7
Max LVORI late 7 3 9 2
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ057-210830-
Muskingum-
Including the city of Zanesville
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Mclear Pcldy
Precip Type None None None None
Chance Precip (%) 0 0 0 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 64 (-5) 82 (+1) 63 85
RH % (24h trend) 100 (+1) 65 (-3) 100 51
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var N 5 Lgt/Var Lgt/Var
Precip Amount 0.00 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt(m-agl/msl) 1150 1900
Mixing Hgt(ft-agl/msl) 3780 6220
Transport Wnd (mph) N 10 NE 6
Vent Rate (kt-ft) 36650 4310
Dispersion 5 3
ADI early 17 Gen Poor 33 Fair 6 Very Poor 25 Fair
ADI late 9 Poor 50 Gen Good 5 Very Poor 39 Fair
Max LVORI early 7 7 6 9
Max LVORI late 8 3 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ058-210830-
Guernsey-
Including the city of Cambridge
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Pcldy Mclear
Precip Type None None None None
Chance Precip (%) 0 0 0 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 64 (-5) 82 (0) 64 85
RH % (24h trend) 100 (+1) 64 (-3) 100 50
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var N 5 Lgt/Var Lgt/Var
Precip Amount 0.00 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt(m-agl/msl) 1110 1950
Mixing Hgt(ft-agl/msl) 3650 6400
Transport Wnd (mph) N 9 NE 6
Vent Rate (kt-ft) 40380 4260
Dispersion 5 3
ADI early 8 Poor 26 Fair 6 Very Poor 26 Fair
ADI late 9 Poor 40 Fair 5 Very Poor 38 Fair
Max LVORI early 8 8 7 9
Max LVORI late 8 3 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ059-210830-
Belmont-
Including the cities of Martins Ferry and St. Clairsville
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Pcldy Mclear
Precip Type None Showers None None
Chance Precip (%) 0 20 0 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 65 (-4) 82 (-1) 63 85
RH % (24h trend) 100 (+1) 65 (-2) 100 50
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var N 5 Lgt/Var Lgt/Var
Precip Amount 0.00 0.00 0.00 0.00
Precip Duration 0
Precip Begin 2 PM
Precip End 5 PM
Mixing Hgt(m-agl/msl) 1010 2020
Mixing Hgt(ft-agl/msl) 3320 6640
Transport Wnd (mph) N 9 NE 5
Vent Rate (kt-ft) 40520 4220
Dispersion 5 3
ADI early 8 Poor 20 Gen Poor 6 Very Poor 28 Fair
ADI late 9 Poor 38 Fair 4 Very Poor 38 Fair
Max LVORI early 9 5 7 8
Max LVORI late 8 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ068-210830-
Noble-
Including the city of Caldwell
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Mclear Mclear
Precip Type None None None None
Chance Precip (%) 0 0 0 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 64 (-5) 82 (-1) 64 85
RH % (24h trend) 100 (+2) 66 (-1) 100 52
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt(m-agl/msl) 1060 1960
Mixing Hgt(ft-agl/msl) 3470 6430
Transport Wnd (mph) N 9 NE 5
Vent Rate (kt-ft) 37000 4000
Dispersion 5 2
ADI early 8 Poor 23 Fair 5 Very Poor 23 Fair
ADI late 8 Poor 40 Fair 5 Very Poor 35 Fair
Max LVORI early 8 5 8 8
Max LVORI late 9 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ069-210830-
Monroe-
Including the city of Woodsfield
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Mclear Mclear
Precip Type None None None None
Chance Precip (%) 0 0 0 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 65 (-4) 82 (-1) 64 85
RH % (24h trend) 100 (+3) 66 (-2) 100 53
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt(m-agl/msl) 1080 1980
Mixing Hgt(ft-agl/msl) 3560 6500
Transport Wnd (mph) N 8 NE 5
Vent Rate (kt-ft) 42520 5540
Dispersion 5 3
ADI early 8 Poor 19 Gen Poor 5 Very Poor 26 Fair
ADI late 8 Poor 40 Fair 5 Very Poor 34 Fair
Max LVORI early 8 7 7 9
Max LVORI late 8 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ007-210830-
Mercer-
Including the cities of Sharon, Hermitage, and Grove City
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Mcldy Pcldy Pcldy Mclear
Precip Type None None None None
Chance Precip (%) 0 0 0 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 63 (-4) 80 (0) 59 83
RH % (24h trend) 100 (0) 68 (-9) 100 48
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) N 5 NE 5 Lgt/Var Lgt/Var
Precip Amount 0.00 0.00 0.00 0.00
Precip Duration
Precip Begin
Precip End
Mixing Hgt(m-agl/msl) 980 1920
Mixing Hgt(ft-agl/msl) 3210 6300
Transport Wnd (mph) NE 9 NE 3
Vent Rate (kt-ft) 45160 4100
Dispersion 5 3
ADI early 17 Gen Poor 20 Gen Poor 8 Poor 22 Fair
ADI late 9 Poor 34 Fair 4 Very Poor 31 Fair
Max LVORI early 8 5 8 9
Max LVORI late 8 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ008-210830-
Venango-
Including the cities of Oil City and Franklin
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Mcldy Mcldy Pcldy Mclear
Precip Type Showers Showers None None
Chance Precip (%) 20 20 0 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 62 (-3) 79 (-1) 57 82
RH % (24h trend) 100 (+2) 70 (-8) 100 47
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.01 0.01 0.00 0.00
Precip Duration 1 1
Precip Begin 6 PM 1 PM
Precip End 2 AM 6 PM
Mixing Hgt(m-agl/msl) 950 1970
Mixing Hgt(ft-agl/msl) 3130 6460
Transport Wnd (mph) NE 9 NE 3
Vent Rate (kt-ft) 47470 5060
Dispersion 5 3
ADI early 8 Poor 18 Gen Poor 7 Poor 22 Fair
ADI late 8 Poor 29 Fair 4 Very Poor 31 Fair
Max LVORI early 8 8 9 9
Max LVORI late 9 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ009-210830-
Forest-
Including the city of Tionesta
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Mcldy Mcldy Pcldy Mclear
Precip Type Tstms Showers None None
Chance Precip (%) 40 20 0 0
Chance of Thunder (%) 30 0 0 0
Temp (24h trend) 61 (-2) 78 (-2) 56 82
RH % (24h trend) 100 (+3) 65 (-9) 100 41
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.06 0.05 0.00 0.00
Precip Duration 2 1
Precip Begin 6 PM 12 PM
Precip End 6 AM 6 PM
Mixing Hgt(m-agl/msl) 880 1920
Mixing Hgt(ft-agl/msl) 2890 6290
Transport Wnd (mph) NE 8 NE 3
Vent Rate (kt-ft) 40580 5730
Dispersion 5 3
ADI early 5 Very Poor 18 Gen Poor 6 Very Poor 21 Fair
ADI late 4 Very Poor 25 Fair 4 Very Poor 32 Fair
Max LVORI early 9 8 7 9
Max LVORI late 9 4 9 2
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ013-210830-
Lawrence-
Including the cities of New Castle and Ellwood City
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Pcldy Mclear
Precip Type Showers Showers None None
Chance Precip (%) 20 20 0 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 63 (-4) 80 (-2) 60 84
RH % (24h trend) 100 (+1) 66 (-4) 100 46
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var NE 5 Lgt/Var Lgt/Var
Precip Amount 0.00 0.02 0.00 0.00
Precip Duration 0 0
Precip Begin 6 PM 2 PM
Precip End 9 PM 6 PM
Mixing Hgt(m-agl/msl) 1010 1890
Mixing Hgt(ft-agl/msl) 3310 6180
Transport Wnd (mph) NE 8 NE 5
Vent Rate (kt-ft) 35820 4800
Dispersion 5 3
ADI early 9 Poor 22 Fair 7 Poor 24 Fair
ADI late 8 Poor 32 Fair 3 Very Poor 34 Fair
Max LVORI early 8 6 9 9
Max LVORI late 8 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ014-210830-
Butler-
Including the city of Butler
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Pcldy Mclear
Precip Type Showers Showers None None
Chance Precip (%) 20 20 0 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 63 (-3) 81 (-1) 60 84
RH % (24h trend) 100 (+1) 67 (-4) 100 47
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.01 0.01 0.00 0.00
Precip Duration 1 1
Precip Begin 6 PM 1 PM
Precip End 2 AM 6 PM
Mixing Hgt(m-agl/msl) 1110 1930
Mixing Hgt(ft-agl/msl) 3630 6330
Transport Wnd (mph) NE 8 NE 3
Vent Rate (kt-ft) 36460 4520
Dispersion 5 3
ADI early 8 Poor 22 Fair 6 Very Poor 21 Fair
ADI late 8 Poor 35 Fair 4 Very Poor 31 Fair
Max LVORI early 8 8 9 9
Max LVORI late 8 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ015-210830-
Clarion-
Including the city of Clarion
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Mcldy Mcldy Pcldy Mclear
Precip Type Tstms Showers Showers None
Chance Precip (%) 30 20 20 0
Chance of Thunder (%) 30 0 0 0
Temp (24h trend) 63 (-2) 79 (-2) 58 83
RH % (24h trend) 100 (+3) 62 (-9) 100 42
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.05 0.01 0.01 0.00
Precip Duration 2 1 0
Precip Begin 6 PM 8 AM Continuing
Precip End 4 AM Continuing 8 PM
Mixing Hgt(m-agl/msl) 1000 1950
Mixing Hgt(ft-agl/msl) 3270 6400
Transport Wnd (mph) NE 8 NE 3
Vent Rate (kt-ft) 38040 5640
Dispersion 5 3
ADI early 6 Very Poor 21 Fair 6 Very Poor 23 Fair
ADI late 5 Very Poor 31 Fair 4 Very Poor 32 Fair
Max LVORI early 8 8 7 9
Max LVORI late 9 4 9 2
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ016-210830-
Jefferson PA-
Including the cities of Punxsutawney and Brookville
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Mcldy Mcldy Pcldy Mclear
Precip Type Tstms Showers Showers None
Chance Precip (%) 40 30 30 0
Chance of Thunder (%) 30 0 0 0
Temp (24h trend) 63 (-1) 78 (-1) 56 82
RH % (24h trend) 100 (+3) 61 (-10) 100 39
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.12 0.00 0.00 0.00
Precip Duration 2 2 1
Precip Begin 6 PM Continuing Continuing
Precip End Continuing Continuing 8 PM
Mixing Hgt(m-agl/msl) 950 2040
Mixing Hgt(ft-agl/msl) 3110 6680
Transport Wnd (mph) NE 8 NE 3
Vent Rate (kt-ft) 37270 5310
Dispersion 5 3
ADI early 4 Very Poor 20 Gen Poor 6 Very Poor 23 Fair
ADI late 5 Very Poor 30 Fair 4 Very Poor 32 Fair
Max LVORI early 7 7 5 8
Max LVORI late 9 3 9 2
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ020-210830-
Beaver-
Including the cities of Aliquippa, Beaver Falls, Ambridge,
and Monaca
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Pcldy Mclear
Precip Type None Showers None None
Chance Precip (%) 0 20 0 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 65 (-3) 81 (-2) 62 84
RH % (24h trend) 100 (+2) 62 (-4) 99 44
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var NE 5 Lgt/Var Lgt/Var
Precip Amount 0.00 0.01 0.00 0.00
Precip Duration 0
Precip Begin 3 PM
Precip End 6 PM
Mixing Hgt(m-agl/msl) 1120 1980
Mixing Hgt(ft-agl/msl) 3670 6500
Transport Wnd (mph) NE 9 NE 5
Vent Rate (kt-ft) 37330 5530
Dispersion 5 3
ADI early 8 Poor 21 Fair 7 Poor 21 Fair
ADI late 8 Poor 37 Fair 4 Very Poor 33 Fair
Max LVORI early 6 8 6 7
Max LVORI late 9 3 9 2
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ021-210830-
Allegheny-
Including the city of Pittsburgh Metro Area
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Pcldy Mclear
Precip Type None Tstms Showers None
Chance Precip (%) 0 20 20 0
Chance of Thunder (%) 0 20 0 0
Temp (24h trend) 66 (-2) 81 (-2) 62 84
RH % (24h trend) 100 (+2) 63 (-6) 99 47
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var NE 6 Lgt/Var Lgt/Var
Precip Amount 0.00 0.03 0.01 0.00
Precip Duration 1 0
Precip Begin 11 AM Continuing
Precip End Continuing 8 PM
Mixing Hgt(m-agl/msl) 1150 2050
Mixing Hgt(ft-agl/msl) 3770 6720
Transport Wnd (mph) NE 9 NE 5
Vent Rate (kt-ft) 38180 5800
Dispersion 5 3
ADI early 7 Poor 22 Fair 6 Very Poor 22 Fair
ADI late 7 Poor 39 Fair 4 Very Poor 36 Fair
Max LVORI early 7 8 6 7
Max LVORI late 8 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ022-210830-
Armstrong-
Including the cities of Kittanning and Ford City
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Pcldy Mclear
Precip Type Tstms Showers Showers None
Chance Precip (%) 40 20 20 0
Chance of Thunder (%) 40 0 0 0
Temp (24h trend) 64 (-2) 81 (-1) 60 84
RH % (24h trend) 100 (+1) 63 (-8) 100 44
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.05 0.01 0.01 0.00
Precip Duration 2 1 0
Precip Begin 6 PM 8 AM Continuing
Precip End 6 AM Continuing 8 PM
Mixing Hgt(m-agl/msl) 1090 1950
Mixing Hgt(ft-agl/msl) 3580 6400
Transport Wnd (mph) NE 9 NE 3
Vent Rate (kt-ft) 39450 5640
Dispersion 5 3
ADI early 5 Very Poor 22 Fair 6 Very Poor 22 Fair
ADI late 5 Very Poor 39 Fair 4 Very Poor 32 Fair
Max LVORI early 8 8 7 8
Max LVORI late 9 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ029-210830-
Washington-
Including the cities of Washington and Canonsburg
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Pcldy Mclear
Precip Type None Tstms None None
Chance Precip (%) 0 30 0 0
Chance of Thunder (%) 0 20 0 0
Temp (24h trend) 66 (-3) 81 (-1) 62 84
RH % (24h trend) 100 (+1) 63 (-6) 100 47
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var NE 6 Lgt/Var Lgt/Var
Precip Amount 0.00 0.05 0.00 0.00
Precip Duration 2
Precip Begin 10 AM
Precip End 6 PM
Mixing Hgt(m-agl/msl) 1050 2030
Mixing Hgt(ft-agl/msl) 3460 6670
Transport Wnd (mph) NE 9 NE 5
Vent Rate (kt-ft) 43810 4390
Dispersion 5 3
ADI early 6 Very Poor 19 Gen Poor 7 Poor 27 Fair
ADI late 8 Poor 37 Fair 4 Very Poor 36 Fair
Max LVORI early 7 8 6 8
Max LVORI late 8 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ031-210830-
Greene-
Including the city of Waynesburg
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Mclear Mclear
Precip Type None Tstms None None
Chance Precip (%) 0 30 0 0
Chance of Thunder (%) 0 20 0 0
Temp (24h trend) 66 (-2) 81 (-2) 62 84
RH % (24h trend) 100 (+3) 69 (-6) 100 51
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var NE 5 Lgt/Var Lgt/Var
Precip Amount 0.00 0.02 0.00 0.00
Precip Duration 2
Precip Begin 11 AM
Precip End 6 PM
Mixing Hgt(m-agl/msl) 1030 2010
Mixing Hgt(ft-agl/msl) 3370 6610
Transport Wnd (mph) NE 9 NE 5
Vent Rate (kt-ft) 40700 4500
Dispersion 5 3
ADI early 6 Very Poor 17 Gen Poor 5 Very Poor 28 Fair
ADI late 6 Very Poor 35 Fair 3 Very Poor 34 Fair
Max LVORI early 8 8 8 9
Max LVORI late 9 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ073-210830-
Westmoreland-
Including the cities of Murrysville, Greensburg, New Kensington,
Lower Burrell, Latrobe, and Monessen
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Pcldy Mclear
Precip Type Showers Tstms None None
Chance Precip (%) 20 40 0 0
Chance of Thunder (%) 0 20 0 0
Temp (24h trend) 65 (-2) 81 (-2) 61 84
RH % (24h trend) 100 (+1) 66 (-7) 100 48
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var NE 5 Lgt/Var Lgt/Var
Precip Amount 0.03 0.02 0.00 0.00
Precip Duration 1 2
Precip Begin 6 PM 10 AM
Precip End 6 AM 6 PM
Mixing Hgt(m-agl/msl) 1110 2030
Mixing Hgt(ft-agl/msl) 3630 6640
Transport Wnd (mph) NE 9 NE 3
Vent Rate (kt-ft) 39180 4400
Dispersion 5 3
ADI early 4 Very Poor 21 Fair 5 Very Poor 22 Fair
ADI late 4 Very Poor 40 Fair 3 Very Poor 32 Fair
Max LVORI early 9 8 8 9
Max LVORI late 9 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ074-210830-
Higher Elevations of Westmoreland-
Including the cities of Ligonier and Donegal
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Pcldy Mclear
Precip Type Tstms Tstms None None
Chance Precip (%) 50 40 0 0
Chance of Thunder (%) 40 20 0 0
Temp (24h trend) 63 (-2) 79 (-2) 60 83
RH % (24h trend) 100 (+1) 63 (-9) 100 45
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.07 0.01 0.00 0.00
Precip Duration 3 3
Precip Begin 6 PM 8 AM
Precip End 6 AM 6 PM
Mixing Hgt(m-agl/msl) 1070 1990
Mixing Hgt(ft-agl/msl) 3520 6530
Transport Wnd (mph) E 8 NE 3
Vent Rate (kt-ft) 28380 5010
Dispersion 5 3
ADI early 3 Very Poor 20 Gen Poor 4 Very Poor 19 Gen Poor
ADI late 3 Very Poor 30 Fair 3 Very Poor 31 Fair
Max LVORI early 8 8 6 8
Max LVORI late 9 3 9 2
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ075-210830-
Fayette-
Including the city of Uniontown
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Mclear Mclear
Precip Type Tstms Tstms None None
Chance Precip (%) 30 40 0 0
Chance of Thunder (%) 30 20 0 0
Temp (24h trend) 66 (-2) 81 (-2) 62 84
RH % (24h trend) 100 (+8) 65 (-8) 100 49
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var NE 5 Lgt/Var Lgt/Var
Precip Amount 0.02 0.03 0.00 0.00
Precip Duration 1 3
Precip Begin 6 PM 10 AM
Precip End 10 PM 6 PM
Mixing Hgt(m-agl/msl) 1170 2030
Mixing Hgt(ft-agl/msl) 3830 6670
Transport Wnd (mph) NE 8 NE 5
Vent Rate (kt-ft) 36770 5090
Dispersion 5 3
ADI early 5 Very Poor 20 Gen Poor 4 Very Poor 22 Fair
ADI late 4 Very Poor 38 Fair 3 Very Poor 35 Fair
Max LVORI early 8 8 7 9
Max LVORI late 9 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ076-210830-
Higher Elevations of Fayette-
Including the cities of Champion and Ohiopyle
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Mclear Mclear
Precip Type Tstms Tstms None None
Chance Precip (%) 50 40 0 0
Chance of Thunder (%) 50 20 0 0
Temp (24h trend) 62 (-2) 79 (-2) 59 82
RH % (24h trend) 100 (+2) 66 (-8) 100 51
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.07 0.03 0.00 0.00
Precip Duration 2 3
Precip Begin 6 PM 8 AM
Precip End 6 AM 6 PM
Mixing Hgt(m-agl/msl) 1030 1820
Mixing Hgt(ft-agl/msl) 3360 5960
Transport Wnd (mph) NE 8 NE 5
Vent Rate (kt-ft) 25360 8380
Dispersion 5 4
ADI early 3 Very Poor 18 Gen Poor 4 Very Poor 18 Gen Poor
ADI late 3 Very Poor 30 Fair 3 Very Poor 32 Fair
Max LVORI early 9 8 9 9
Max LVORI late 9 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ077-210830-
Indiana-
Including the city of Indiana
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Pcldy Mclear
Precip Type Tstms Showers None None
Chance Precip (%) 40 30 0 0
Chance of Thunder (%) 40 0 0 0
Temp (24h trend) 64 (-1) 79 (-2) 59 84
RH % (24h trend) 100 (+1) 64 (-10) 100 44
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.10 0.00 0.00 0.00
Precip Duration 3 1
Precip Begin 6 PM Continuing
Precip End Continuing 5 PM
Mixing Hgt(m-agl/msl) 1010 2020
Mixing Hgt(ft-agl/msl) 3320 6630
Transport Wnd (mph) NE 9 NE 3
Vent Rate (kt-ft) 32890 4860
Dispersion 5 3
ADI early 3 Very Poor 23 Fair 5 Very Poor 21 Fair
ADI late 5 Very Poor 35 Fair 4 Very Poor 31 Fair
Max LVORI early 9 8 6 8
Max LVORI late 9 4 9 2
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ078-210830-
Higher Elevations of Indiana-
Including the city of Armagh
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Pcldy Mclear
Precip Type Tstms Showers None None
Chance Precip (%) 40 30 0 0
Chance of Thunder (%) 40 0 0 0
Temp (24h trend) 64 (-1) 77 (-2) 59 82
RH % (24h trend) 100 (+2) 67 (-8) 100 46
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.08 0.00 0.00 0.00
Precip Duration 3 1
Precip Begin 6 PM 7 AM
Precip End 6 AM 5 PM
Mixing Hgt(m-agl/msl) 920 1960
Mixing Hgt(ft-agl/msl) 3030 6420
Transport Wnd (mph) E 8 NE 3
Vent Rate (kt-ft) 31440 4360
Dispersion 5 3
ADI early 3 Very Poor 22 Fair 5 Very Poor 21 Fair
ADI late 4 Very Poor 31 Fair 4 Very Poor 31 Fair
Max LVORI early 8 8 6 8
Max LVORI late 9 4 9 2
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ001-210830-
Hancock-
Including the city of Weirton
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Pcldy Mclear
Precip Type None Showers None None
Chance Precip (%) 0 20 0 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 66 (-3) 81 (-1) 63 84
RH % (24h trend) 99 (+1) 60 (-4) 97 44
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) N 5 N 5 Lgt/Var Lgt/Var
Precip Amount 0.00 0.03 0.00 0.00
Precip Duration 0
Precip Begin 2 PM
Precip End 6 PM
Mixing Hgt(m-agl/msl) 1100 2030
Mixing Hgt(ft-agl/msl) 3610 6670
Transport Wnd (mph) NE 9 NE 5
Vent Rate (kt-ft) 33850 5760
Dispersion 5 3
ADI early 8 Poor 21 Fair 8 Poor 21 Fair
ADI late 8 Poor 39 Fair 4 Very Poor 38 Fair
Max LVORI early 6 8 5 6
Max LVORI late 6 3 8 2
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ002-210830-
Brooke-
Including the cities of Follansbee and Wellsburg
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Pcldy Mclear
Precip Type None Tstms None None
Chance Precip (%) 0 30 0 0
Chance of Thunder (%) 0 20 0 0
Temp (24h trend) 66 (-4) 82 (-1) 64 85
RH % (24h trend) 99 (0) 61 (-3) 98 44
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var N 5 Lgt/Var Lgt/Var
Precip Amount 0.00 0.03 0.00 0.00
Precip Duration 1
Precip Begin 2 PM
Precip End 6 PM
Mixing Hgt(m-agl/msl) 1030 2100
Mixing Hgt(ft-agl/msl) 3390 6890
Transport Wnd (mph) NE 8 NE 6
Vent Rate (kt-ft) 29380 4810
Dispersion 5 3
ADI early 8 Poor 21 Fair 6 Very Poor 30 Fair
ADI late 8 Poor 33 Fair 3 Very Poor 44 Gen Good
Max LVORI early 6 6 6 7
Max LVORI late 7 3 9 2
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ003-210830-
Ohio-
Including the city of Wheeling
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Pcldy Mclear
Precip Type None Tstms None None
Chance Precip (%) 0 30 0 0
Chance of Thunder (%) 0 20 0 0
Temp (24h trend) 66 (-4) 82 (-1) 63 85
RH % (24h trend) 100 (0) 66 (-2) 100 48
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var NE 5 Lgt/Var Lgt/Var
Precip Amount 0.00 0.05 0.00 0.00
Precip Duration 1
Precip Begin 12 PM
Precip End 6 PM
Mixing Hgt(m-agl/msl) 940 2080
Mixing Hgt(ft-agl/msl) 3080 6840
Transport Wnd (mph) N 10 NE 6
Vent Rate (kt-ft) 45100 4350
Dispersion 5 3
ADI early 7 Poor 19 Gen Poor 6 Very Poor 28 Fair
ADI late 8 Poor 37 Fair 3 Very Poor 43 Gen Good
Max LVORI early 7 8 6 8
Max LVORI late 8 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ004-210830-
Marshall-
Including the city of Moundsville
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Mclear Mclear
Precip Type None Tstms None None
Chance Precip (%) 0 30 0 0
Chance of Thunder (%) 0 20 0 0
Temp (24h trend) 67 (-3) 83 (0) 63 85
RH % (24h trend) 100 (+3) 69 (-4) 100 54
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var N 5 Lgt/Var Lgt/Var
Precip Amount 0.00 0.01 0.00 0.00
Precip Duration 1
Precip Begin 2 PM
Precip End 6 PM
Mixing Hgt(m-agl/msl) 1050 2060
Mixing Hgt(ft-agl/msl) 3440 6760
Transport Wnd (mph) N 9 NE 5
Vent Rate (kt-ft) 39100 5930
Dispersion 5 3
ADI early 7 Poor 17 Gen Poor 6 Very Poor 29 Fair
ADI late 7 Poor 39 Fair 4 Very Poor 35 Fair
Max LVORI early 7 8 7 8
Max LVORI late 8 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ012-210830-
Wetzel-
Including the city of New Martinsville
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Mclear Mclear
Precip Type None Tstms None None
Chance Precip (%) 0 30 0 0
Chance of Thunder (%) 0 20 0 0
Temp (24h trend) 66 (-3) 82 (0) 63 85
RH % (24h trend) 100 (+5) 71 (-6) 100 56
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.02 0.00 0.00
Precip Duration 1
Precip Begin 2 PM
Precip End 6 PM
Mixing Hgt(m-agl/msl) 1140 1980
Mixing Hgt(ft-agl/msl) 3740 6500
Transport Wnd (mph) NE 8 NE 5
Vent Rate (kt-ft) 38180 5290
Dispersion 5 3
ADI early 7 Poor 19 Gen Poor 6 Very Poor 28 Fair
ADI late 6 Very Poor 39 Fair 4 Very Poor 35 Fair
Max LVORI early 8 8 8 9
Max LVORI late 9 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ021-210830-
Marion-
Including the city of Fairmont
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Mclear Mclear
Precip Type Tstms Tstms None None
Chance Precip (%) 30 40 0 0
Chance of Thunder (%) 30 30 0 0
Temp (24h trend) 66 (-2) 81 (-3) 62 84
RH % (24h trend) 100 (+4) 71 (-3) 100 56
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.02 0.02 0.00 0.00
Precip Duration 1 2
Precip Begin 6 PM 12 PM
Precip End 9 PM 6 PM
Mixing Hgt(m-agl/msl) 1140 1820
Mixing Hgt(ft-agl/msl) 3750 5970
Transport Wnd (mph) NE 9 NE 5
Vent Rate (kt-ft) 41570 5070
Dispersion 5 3
ADI early 7 Poor 21 Fair 6 Very Poor 21 Fair
ADI late 5 Very Poor 42 Gen Good 3 Very Poor 29 Fair
Max LVORI early 9 8 9 9
Max LVORI late 9 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ509-210830-
Monongalia-
Including the city of Morgantown
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Mclear Mclear
Precip Type Tstms Tstms None None
Chance Precip (%) 30 40 0 0
Chance of Thunder (%) 30 20 0 0
Temp (24h trend) 66 (-3) 81 (-2) 62 83
RH % (24h trend) 100 (+6) 70 (-6) 100 55
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.02 0.02 0.00 0.00
Precip Duration 1 2
Precip Begin 6 PM 11 AM
Precip End 9 PM 6 PM
Mixing Hgt(m-agl/msl) 1110 1910
Mixing Hgt(ft-agl/msl) 3630 6280
Transport Wnd (mph) NE 8 NE 5
Vent Rate (kt-ft) 32070 5630
Dispersion 5 3
ADI early 5 Very Poor 20 Gen Poor 5 Very Poor 23 Fair
ADI late 4 Very Poor 36 Fair 3 Very Poor 31 Fair
Max LVORI early 8 8 8 9
Max LVORI late 9 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ510-210830-
Ridges of Eastern Monongalia and Northwestern Preston-
Including the city of Coopers Rock
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Mclear Mclear
Precip Type Tstms Tstms None None
Chance Precip (%) 40 50 0 0
Chance of Thunder (%) 40 30 0 0
Temp (24h trend) 64 (-2) 79 (-2) 60 81
RH % (24h trend) 100 (+3) 71 (-4) 100 54
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.03 0.09 0.00 0.00
Precip Duration 1 2
Precip Begin 6 PM 11 AM
Precip End 10 PM 6 PM
Mixing Hgt(m-agl/msl) 930 1680
Mixing Hgt(ft-agl/msl) 3040 5500
Transport Wnd (mph) NE 8 NE 5
Vent Rate (kt-ft) 27760 5200
Dispersion 5 3
ADI early 4 Very Poor 16 Gen Poor 5 Very Poor 17 Gen Poor
ADI late 4 Very Poor 31 Fair 3 Very Poor 28 Fair
Max LVORI early 9 8 9 9
Max LVORI late 9 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ511-210830-
Preston-
Including the cities of Kingwood and Bruceton Mills
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Mclear Mclear
Precip Type Tstms Tstms Showers None
Chance Precip (%) 50 50 30 0
Chance of Thunder (%) 50 30 0 0
Temp (24h trend) 64 (-2) 79 (-4) 59 83
RH % (24h trend) 100 (+4) 68 (-3) 100 53
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.03 0.04 0.01 0.00
Precip Duration 2 2 1
Precip Begin 6 PM 8 AM Continuing
Precip End 5 AM Continuing 2 AM
Mixing Hgt(m-agl/msl) 1120 1700
Mixing Hgt(ft-agl/msl) 3670 5590
Transport Wnd (mph) NE 8 N 5
Vent Rate (kt-ft) 31240 7130
Dispersion 5 3
ADI early 4 Very Poor 25 Fair 5 Very Poor 18 Gen Poor
ADI late 3 Very Poor 37 Fair 3 Very Poor 29 Fair
Max LVORI early 9 8 9 9
Max LVORI late 9 3 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ512-210830-
Eastern Preston-
Including the cities of Terra Alta, Rowlesburg, and Hazelton
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Pcldy Pcldy
Precip Type Tstms Tstms Showers None
Chance Precip (%) 60 50 30 0
Chance of Thunder (%) 60 30 0 0
Temp (24h trend) 64 (-1) 78 (-3) 59 81
RH % (24h trend) 100 (+3) 69 (-5) 100 54
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.12 0.02 0.00 0.00
Precip Duration 2 3 1
Precip Begin 6 PM 6 AM Continuing
Precip End 5 AM Continuing 2 AM
Mixing Hgt(m-agl/msl) 1030 1620
Mixing Hgt(ft-agl/msl) 3390 5310
Transport Wnd (mph) E 8 N 5
Vent Rate (kt-ft) 31120 8700
Dispersion 5 4
ADI early 3 Very Poor 21 Fair 5 Very Poor 15 Gen Poor
ADI late 4 Very Poor 31 Fair 3 Very Poor 27 Fair
Max LVORI early 9 8 9 9
Max LVORI late 9 4 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ513-210830-
Western Tucker-
Including the cities of Parsons, Hendricks, and Saint George
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Pcldy Pcldy
Precip Type Tstms Tstms Showers None
Chance Precip (%) 70 50 30 0
Chance of Thunder (%) 60 30 0 0
Temp (24h trend) 64 (-1) 80 (-2) 59 82
RH % (24h trend) 100 (+4) 64 (-5) 100 53
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.18 0.02 0.00 0.00
Precip Duration 2 3 1
Precip Begin 6 PM 8 AM Continuing
Precip End 4 AM Continuing 2 AM
Mixing Hgt(m-agl/msl) 1140 1540
Mixing Hgt(ft-agl/msl) 3730 5070
Transport Wnd (mph) NE 8 NW 5
Vent Rate (kt-ft) 28200 7440
Dispersion 5 3
ADI early 4 Very Poor 23 Fair 5 Very Poor 16 Gen Poor
ADI late 3 Very Poor 33 Fair 3 Very Poor 29 Fair
Max LVORI early 9 8 9 9
Max LVORI late 9 3 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ514-210830-
Eastern Tucker-
Including the cities of Davis, Thomas, and Canaan Valley
120 PM EDT Wed Aug 20 2025
Tonight Thu Thu Night Fri
Cloud Cover Pcldy Pcldy Pcldy Pcldy
Precip Type Tstms Tstms Tstms None
Chance Precip (%) 80 50 20 0
Chance of Thunder (%) 60 30 20 0
Temp (24h trend) 60 (-2) 74 (-3) 55 77
RH % (24h trend) 100 (+1) 76 (-4) 100 63
20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var
20ft Wnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.22 0.03 0.00 0.00
Precip Duration 4 4 1
Precip Begin 6 PM Continuing Continuing
Precip End Continuing Continuing 2 AM
Mixing Hgt(m-agl/msl) 860 1340
Mixing Hgt(ft-agl/msl) 2830 4400
Transport Wnd (mph) NE 8 NW 6
Vent Rate (kt-ft) 21300 11230
Dispersion 5 4
ADI early 3 Very Poor 15 Gen Poor 5 Very Poor 13 Gen Poor
ADI late 4 Very Poor 24 Fair 4 Very Poor 26 Fair
Max LVORI early 9 8 9 9
Max LVORI late 9 5 9 3
Remarks: ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY...Mostly clear. Scattered showers. Lows in the lower
60s. Highs in the mid 80s. Southeast winds around 5 mph.
.SUNDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the mid 60s. Highs in the lower 80s. South winds around
5 mph.
.MONDAY...Partly cloudy. Lows in the upper 50s. Highs in the
lower 70s. West winds 5 to 10 mph.
.TUESDAY...Partly cloudy. Lows in the lower 50s. Highs around 70.
West winds 5 to 10 mph.
.WEDNESDAY...Mostly clear. Lows in the upper 40s. Highs in the
lower 70s. West winds 5 to 10 mph.
$$
Lupo