923
FNUS51 KPBZ 210444
FWFPBZ
FIRE WEATHER PLANNING FORECAST
NATIONAL WEATHER SERVICE PITTSBURGH PA
1244 AM EDT FRI AUG 21 2026
DISCUSSION
DRY WEATHER UNDER THE INFLUENCE OF HIGH PRESSURE TO THE NORTH WITH
GENERALLY LIGHT EAST WIND IS FAVORED TODAY. THAT SAID, A VERY
ISOLATED AFTERNOON SHOWER CAN'T BE RULED OUT MAINLY NEAR THE WV
HIGHER TERRAIN.
MORE WIDESPREAD SHOWERS AND THUNDERSTORMS CROSS THE REGION
SATURDAY AFTERNOON INTO SUNDAY MORNING AHEAD OF A COLD FRONT UNDER
A DIGGING UPPER TROUGH. THIS WILL RESULT IN SEASONABLY COOL
TEMPERATURE FOR SUNDAY/MONDAY.
OHZ039-212015-
TUSCARAWAS-
INCLUDING THE CITIES OF NEW PHILADELPHIA AND DOVER
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR CLEAR MCLEAR
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 70
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 80 (+2) 58 (-2) 79
RH % (24H TREND) 51 (-19) 99 (-1) 61
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR SW 5
PRECIP AMOUNT 0.00 0.00 0.08
PRECIP DURATION 2
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1320 1400
MIXING HGT(FT-AGL/MSL)4350 4600
TRANSPORT WND (MPH) E 7 SW 9
VENT RATE (KT-FT) 26100 36800
CATEGORY DAY 2 3
INVERSION 64F/9AM 7PM 65F/9AM
DISPERSION 2 3
MAX ADI EARLY 22 FAIR 3 VERY POOR 14 GEN POOR
MAX ADI LATE 34 FAIR 3 VERY POOR 48 GEN GOOD
MAX LVORI EARLY 9 5 9
MAX LVORI LATE 2 8 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ040-212015-
CARROLL-
INCLUDING THE CITIES OF CARROLLTON AND MALVERN
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR CLEAR MCLEAR
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 60
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 79 (+4) 57 (-2) 80
RH % (24H TREND) 50 (-29) 99 (-1) 59
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR SW 5
PRECIP AMOUNT 0.00 0.00 0.04
PRECIP DURATION 1
PRECIP BEGIN 3 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1320 1410
MIXING HGT(FT-AGL/MSL)4340 4640
TRANSPORT WND (MPH) E 7 SW 9
VENT RATE (KT-FT) 26040 37120
CATEGORY DAY 2 3
INVERSION 63F/9AM 7PM 65F/9AM
DISPERSION 2 3
MAX ADI EARLY 23 FAIR 4 VERY POOR 19 GEN POOR
MAX ADI LATE 36 FAIR 4 VERY POOR 58 GEN GOOD
MAX LVORI EARLY 8 5 9
MAX LVORI LATE 2 8 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ041-212015-
COLUMBIANA-
INCLUDING THE CITIES OF EAST LIVERPOOL, SALEM, AND COLUMBIANA
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR CLEAR MCLEAR
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 40
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 79 (+3) 57 (-1) 80
RH % (24H TREND) 47 (-29) 96 (-4) 58
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.03
PRECIP DURATION 0
PRECIP BEGIN 3 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1350 1470
MIXING HGT(FT-AGL/MSL)4430 4810
TRANSPORT WND (MPH) E 8 SW 9
VENT RATE (KT-FT) 31010 38480
CATEGORY DAY 3 3
INVERSION 67F/10AM 7PM 65F/9AM
DISPERSION 3 3
MAX ADI EARLY 23 FAIR 4 VERY POOR 18 GEN POOR
MAX ADI LATE 37 FAIR 4 VERY POOR 59 GEN GOOD
MAX LVORI EARLY 8 4 7
MAX LVORI LATE 1 6 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ048-212015-
COSHOCTON-
INCLUDING THE CITY OF COSHOCTON
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR CLEAR PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 60
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 79 (0) 58 (-1) 79
RH % (24H TREND) 57 (-9) 100 (0) 68
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.09
PRECIP DURATION 2
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1290 1440
MIXING HGT(FT-AGL/MSL)4240 4730
TRANSPORT WND (MPH) E 6 SW 9
VENT RATE (KT-FT) 21200 37840
CATEGORY DAY 2 3
INVERSION 64F/9AM 7PM 65F/9AM
DISPERSION 2 3
MAX ADI EARLY 21 FAIR 3 VERY POOR 18 GEN POOR
MAX ADI LATE 31 FAIR 3 VERY POOR 41 GEN GOOD
MAX LVORI EARLY 8 6 9
MAX LVORI LATE 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ049-212015-
HARRISON-
INCLUDING THE CITY OF CADIZ
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR CLEAR MCLEAR
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 50
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 79 (+2) 58 (-2) 80
RH % (24H TREND) 51 (-19) 100 (0) 60
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.03
PRECIP DURATION 1
PRECIP BEGIN 3 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1240 1430
MIXING HGT(FT-AGL/MSL)4050 4700
TRANSPORT WND (MPH) E 7 SW 10
VENT RATE (KT-FT) 24300 42300
CATEGORY DAY 2 3
INVERSION 64F/9AM 7PM 65F/9AM
DISPERSION 2 3
MAX ADI EARLY 23 FAIR 4 VERY POOR 18 GEN POOR
MAX ADI LATE 33 FAIR 4 VERY POOR 58 GEN GOOD
MAX LVORI EARLY 8 5 9
MAX LVORI LATE 2 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ050-212015-
JEFFERSON OH-
INCLUDING THE CITY OF STEUBENVILLE
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR CLEAR MCLEAR
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 79 (+4) 58 (-2) 80
RH % (24H TREND) 48 (-29) 100 (0) 58
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 1230 1420
MIXING HGT(FT-AGL/MSL)4030 4650
TRANSPORT WND (MPH) E 8 SW 10
VENT RATE (KT-FT) 28210 41850
CATEGORY DAY 3 3
INVERSION 63F/9AM 7PM 66F/9AM
DISPERSION 3 3
MAX ADI EARLY 22 FAIR 3 VERY POOR 16 GEN POOR
MAX ADI LATE 35 FAIR 4 VERY POOR 63 GOOD
MAX LVORI EARLY 8 5 9
MAX LVORI LATE 2 8 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ057-212015-
MUSKINGUM-
INCLUDING THE CITY OF ZANESVILLE
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR CLEAR PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 50
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 79 (-1) 58 (-2) 78
RH % (24H TREND) 61 (-4) 100 (0) 69
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.05
PRECIP DURATION 1
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1230 1380
MIXING HGT(FT-AGL/MSL)4020 4540
TRANSPORT WND (MPH) NE 6 W 9
VENT RATE (KT-FT) 20100 36320
CATEGORY DAY 2 3
INVERSION 64F/9AM 7PM 65F/9AM
DISPERSION 2 3
MAX ADI EARLY 20 GEN POOR 3 VERY POOR 16 GEN POOR
MAX ADI LATE 34 FAIR 3 VERY POOR 39 FAIR
MAX LVORI EARLY 8 6 9
MAX LVORI LATE 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ058-212015-
GUERNSEY-
INCLUDING THE CITY OF CAMBRIDGE
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR CLEAR MCLEAR
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 60
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 80 (0) 58 (-2) 79
RH % (24H TREND) 54 (-13) 100 (0) 63
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.04
PRECIP DURATION 1
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1250 1380
MIXING HGT(FT-AGL/MSL)4110 4530
TRANSPORT WND (MPH) E 6 SW 9
VENT RATE (KT-FT) 20550 36240
CATEGORY DAY 2 3
INVERSION 64F/9AM 7PM 66F/9AM
DISPERSION 2 3
MAX ADI EARLY 22 FAIR 4 VERY POOR 14 GEN POOR
MAX ADI LATE 33 FAIR 3 VERY POOR 47 GEN GOOD
MAX LVORI EARLY 8 6 9
MAX LVORI LATE 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ059-212015-
BELMONT-
INCLUDING THE CITIES OF MARTINS FERRY AND ST. CLAIRSVILLE
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR CLEAR PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 30
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 80 (+3) 59 (-2) 80
RH % (24H TREND) 54 (-18) 100 (0) 62
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.01
PRECIP DURATION 1
PRECIP BEGIN 3 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1150 1440
MIXING HGT(FT-AGL/MSL)3770 4720
TRANSPORT WND (MPH) E 6 SW 10
VENT RATE (KT-FT) 18850 42480
CATEGORY DAY 2 3
INVERSION 64F/9AM 7PM 67F/9AM
DISPERSION 2 3
MAX ADI EARLY 23 FAIR 4 VERY POOR 16 GEN POOR
MAX ADI LATE 34 FAIR 3 VERY POOR 55 GEN GOOD
MAX LVORI EARLY 8 6 9
MAX LVORI LATE 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ068-212015-
NOBLE-
INCLUDING THE CITY OF CALDWELL
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 50
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 80 (+2) 59 (-2) 80
RH % (24H TREND) 57 (-13) 100 (0) 65
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.03
PRECIP DURATION 1
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1170 1330
MIXING HGT(FT-AGL/MSL)3820 4350
TRANSPORT WND (MPH) NE 5 W 9
VENT RATE (KT-FT) 15280 34800
CATEGORY DAY 2 3
INVERSION 65F/9AM 7PM 66F/9AM
DISPERSION 2 3
MAX ADI EARLY 23 FAIR 4 VERY POOR 14 GEN POOR
MAX ADI LATE 35 FAIR 3 VERY POOR 47 GEN GOOD
MAX LVORI EARLY 8 6 9
MAX LVORI LATE 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ069-212015-
MONROE-
INCLUDING THE CITY OF WOODSFIELD
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 80 (+2) 61 (-1) 80
RH % (24H TREND) 56 (-15) 100 (0) 65
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 1140 1330
MIXING HGT(FT-AGL/MSL)3740 4380
TRANSPORT WND (MPH) E 5 W 9
VENT RATE (KT-FT) 14960 35040
CATEGORY DAY 2 3
INVERSION 65F/9AM 7PM 67F/9AM
DISPERSION 2 3
MAX ADI EARLY 23 FAIR 4 VERY POOR 13 GEN POOR
MAX ADI LATE 34 FAIR 3 VERY POOR 56 GEN GOOD
MAX LVORI EARLY 8 6 9
MAX LVORI LATE 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ007-212015-
MERCER-
INCLUDING THE CITIES OF SHARON, HERMITAGE, AND GROVE CITY
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR CLEAR MCLEAR
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 79 (+2) 56 (0) 80
RH % (24H TREND) 44 (-21) 94 (-6) 56
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR S 6
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 1470 1420
MIXING HGT(FT-AGL/MSL)4810 4650
TRANSPORT WND (MPH) E 7 SW 9
VENT RATE (KT-FT) 28860 37200
CATEGORY DAY 3 3
INVERSION 67F/10AM 7PM 64F/9AM
DISPERSION 3 3
MAX ADI EARLY 24 FAIR 4 VERY POOR 25 FAIR
MAX ADI LATE 40 FAIR 5 VERY POOR 55 GEN GOOD
MAX LVORI EARLY 7 5 6
MAX LVORI LATE 1 6 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ008-212015-
VENANGO-
INCLUDING THE CITIES OF OIL CITY AND FRANKLIN
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR CLEAR MCLEAR
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 30
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 78 (+5) 55 (0) 79
RH % (24H TREND) 47 (-25) 95 (-5) 65
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR S 5
PRECIP AMOUNT 0.00 0.00 0.03
PRECIP DURATION 1
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1520 1260
MIXING HGT(FT-AGL/MSL)4970 4130
TRANSPORT WND (MPH) SE 7 S 9
VENT RATE (KT-FT) 29820 33040
CATEGORY DAY 3 3
INVERSION 65F/10AM 7PM 62F/9AM
DISPERSION 3 3
MAX ADI EARLY 22 FAIR 3 VERY POOR 30 FAIR
MAX ADI LATE 37 FAIR 5 VERY POOR 58 GEN GOOD
MAX LVORI EARLY 9 5 6
MAX LVORI LATE 1 6 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ009-212015-
FOREST-
INCLUDING THE CITY OF TIONESTA
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR CLEAR PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 60
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 78 (+6) 53 (-1) 78
RH % (24H TREND) 43 (-32) 93 (-7) 64
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.09
PRECIP DURATION 1
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1500 940
MIXING HGT(FT-AGL/MSL)4930 3070
TRANSPORT WND (MPH) SE 6 S 10
VENT RATE (KT-FT) 24650 27630
CATEGORY DAY 3 3
INVERSION 64F/10AM 7PM 61F/9AM
DISPERSION 3 3
MAX ADI EARLY 22 FAIR 4 VERY POOR 32 FAIR
MAX ADI LATE 35 FAIR 5 VERY POOR 48 GEN GOOD
MAX LVORI EARLY 7 5 6
MAX LVORI LATE 2 6 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ013-212015-
LAWRENCE-
INCLUDING THE CITIES OF NEW CASTLE AND ELLWOOD CITY
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR CLEAR MCLEAR
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 79 (+3) 56 (-1) 81
RH % (24H TREND) 46 (-24) 96 (-4) 57
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 1370 1470
MIXING HGT(FT-AGL/MSL)4480 4840
TRANSPORT WND (MPH) E 8 SW 9
VENT RATE (KT-FT) 31360 38720
CATEGORY DAY 3 3
INVERSION 67F/10AM 7PM 65F/9AM
DISPERSION 3 3
MAX ADI EARLY 24 FAIR 4 VERY POOR 22 FAIR
MAX ADI LATE 37 FAIR 4 VERY POOR 57 GEN GOOD
MAX LVORI EARLY 8 5 6
MAX LVORI LATE 2 6 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ014-212015-
BUTLER-
INCLUDING THE CITY OF BUTLER
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR CLEAR MCLEAR
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 40
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 79 (+5) 56 (-1) 80
RH % (24H TREND) 50 (-29) 98 (-2) 63
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.03
PRECIP DURATION 1
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1360 1410
MIXING HGT(FT-AGL/MSL)4450 4630
TRANSPORT WND (MPH) E 9 SW 8
VENT RATE (KT-FT) 35600 32410
CATEGORY DAY 3 3
INVERSION 66F/10AM 7PM 64F/9AM
DISPERSION 3 3
MAX ADI EARLY 22 FAIR 4 VERY POOR 24 FAIR
MAX ADI LATE 38 FAIR 4 VERY POOR 54 GEN GOOD
MAX LVORI EARLY 8 5 7
MAX LVORI LATE 2 6 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ015-212015-
CLARION-
INCLUDING THE CITY OF CLARION
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR CLEAR PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 50
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 77 (+5) 56 (0) 78
RH % (24H TREND) 46 (-33) 95 (-5) 67
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR S 5
PRECIP AMOUNT 0.00 0.00 0.08
PRECIP DURATION 1
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1390 1120
MIXING HGT(FT-AGL/MSL)4560 3670
TRANSPORT WND (MPH) E 8 S 9
VENT RATE (KT-FT) 31920 29360
CATEGORY DAY 3 3
INVERSION 64F/10AM 7PM 62F/9AM
DISPERSION 3 3
MAX ADI EARLY 20 GEN POOR 4 VERY POOR 31 FAIR
MAX ADI LATE 36 FAIR 5 VERY POOR 43 GEN GOOD
MAX LVORI EARLY 8 5 6
MAX LVORI LATE 2 6 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ016-212015-
JEFFERSON PA-
INCLUDING THE CITIES OF PUNXSUTAWNEY AND BROOKVILLE
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 50
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 76 (+6) 54 (-1) 76
RH % (24H TREND) 45 (-34) 94 (-6) 69
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR S 5
PRECIP AMOUNT 0.00 0.00 0.07
PRECIP DURATION 1
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1370 880
MIXING HGT(FT-AGL/MSL)4500 2890
TRANSPORT WND (MPH) SE 8 S 10
VENT RATE (KT-FT) 31500 26010
CATEGORY DAY 3 3
INVERSION 63F/10AM 7PM 62F/9AM
DISPERSION 3 3
MAX ADI EARLY 21 FAIR 4 VERY POOR 32 FAIR
MAX ADI LATE 35 FAIR 5 VERY POOR 40 FAIR
MAX LVORI EARLY 7 5 6
MAX LVORI LATE 2 6 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ020-212015-
BEAVER-
INCLUDING THE CITIES OF ALIQUIPPA, BEAVER FALLS, AMBRIDGE,
AND MONACA
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR CLEAR MCLEAR
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 79 (+4) 58 (-1) 81
RH % (24H TREND) 46 (-31) 95 (-5) 58
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 1360 1510
MIXING HGT(FT-AGL/MSL)4470 4940
TRANSPORT WND (MPH) E 8 SW 8
VENT RATE (KT-FT) 31290 34580
CATEGORY DAY 3 3
INVERSION 63F/9AM 7PM 65F/9AM
DISPERSION 3 3
MAX ADI EARLY 23 FAIR 4 VERY POOR 20 GEN POOR
MAX ADI LATE 38 FAIR 4 VERY POOR 64 GOOD
MAX LVORI EARLY 8 4 6
MAX LVORI LATE 1 6 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ021-212015-
ALLEGHENY-
INCLUDING THE CITY OF PITTSBURGH METRO AREA
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR CLEAR PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 40
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 79 (+5) 60 (0) 81
RH % (24H TREND) 50 (-31) 96 (-4) 62
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR S 5
PRECIP AMOUNT 0.00 0.00 0.03
PRECIP DURATION 1
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1250 1420
MIXING HGT(FT-AGL/MSL)4090 4660
TRANSPORT WND (MPH) E 9 SW 8
VENT RATE (KT-FT) 32720 32620
CATEGORY DAY 3 3
INVERSION 63F/9AM 7PM 66F/9AM
DISPERSION 3 3
MAX ADI EARLY 21 FAIR 4 VERY POOR 21 FAIR
MAX ADI LATE 36 FAIR 4 VERY POOR 35 FAIR
MAX LVORI EARLY 8 5 7
MAX LVORI LATE 2 6 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ022-212015-
ARMSTRONG-
INCLUDING THE CITIES OF KITTANNING AND FORD CITY
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR CLEAR PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 70
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 78 (+5) 57 (0) 80
RH % (24H TREND) 49 (-33) 98 (-2) 69
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.13
PRECIP DURATION 1
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1320 1090
MIXING HGT(FT-AGL/MSL)4330 3570
TRANSPORT WND (MPH) E 9 S 9
VENT RATE (KT-FT) 34640 28560
CATEGORY DAY 3 3
INVERSION 66F/10AM 7PM 64F/9AM
DISPERSION 3 3
MAX ADI EARLY 21 FAIR 4 VERY POOR 24 FAIR
MAX ADI LATE 36 FAIR 4 VERY POOR 38 FAIR
MAX LVORI EARLY 8 5 7
MAX LVORI LATE 2 6 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ029-212015-
WASHINGTON-
INCLUDING THE CITIES OF WASHINGTON AND CANONSBURG
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 30
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 78 (+6) 59 (-1) 79
RH % (24H TREND) 53 (-32) 98 (-2) 63
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR SW 5
PRECIP AMOUNT 0.00 0.00 0.03
PRECIP DURATION 1
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1120 1340
MIXING HGT(FT-AGL/MSL)3670 4410
TRANSPORT WND (MPH) E 8 SW 8
VENT RATE (KT-FT) 25690 30870
CATEGORY DAY 3 3
INVERSION 63F/9AM 7PM 66F/9AM
DISPERSION 3 3
MAX ADI EARLY 21 FAIR 4 VERY POOR 18 GEN POOR
MAX ADI LATE 33 FAIR 4 VERY POOR 38 FAIR
MAX LVORI EARLY 8 5 8
MAX LVORI LATE 3 7 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ031-212015-
GREENE-
INCLUDING THE CITY OF WAYNESBURG
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 50
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 78 (+5) 60 (-1) 79
RH % (24H TREND) 60 (-28) 99 (-1) 70
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.04
PRECIP DURATION 1
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1120 1390
MIXING HGT(FT-AGL/MSL)3670 4560
TRANSPORT WND (MPH) E 7 SW 8
VENT RATE (KT-FT) 22020 31920
CATEGORY DAY 2 3
INVERSION 63F/9AM 7PM 66F/9AM
DISPERSION 2 3
MAX ADI EARLY 20 GEN POOR 4 VERY POOR 17 GEN POOR
MAX ADI LATE 33 FAIR 3 VERY POOR 39 FAIR
MAX LVORI EARLY 8 6 9
MAX LVORI LATE 3 8 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ073-212015-
WESTMORELAND-
INCLUDING THE CITIES OF MURRYSVILLE, GREENSBURG, NEW KENSINGTON,
LOWER BURRELL, LATROBE, AND MONESSEN
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 60
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 79 (+7) 59 (0) 80
RH % (24H TREND) 52 (-34) 98 (-2) 68
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR S 5
PRECIP AMOUNT 0.00 0.00 0.07
PRECIP DURATION 1
PRECIP BEGIN 1 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1280 1110
MIXING HGT(FT-AGL/MSL)4200 3640
TRANSPORT WND (MPH) E 9 SW 9
VENT RATE (KT-FT) 33600 29120
CATEGORY DAY 3 3
INVERSION 62F/9AM 7PM 66F/9AM
DISPERSION 3 3
MAX ADI EARLY 19 GEN POOR 4 VERY POOR 23 FAIR
MAX ADI LATE 33 FAIR 4 VERY POOR 31 FAIR
MAX LVORI EARLY 9 5 7
MAX LVORI LATE 2 6 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ074-212015-
HIGHER ELEVATIONS OF WESTMORELAND-
INCLUDING THE CITIES OF LIGONIER AND DONEGAL
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 60
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 78 (+10) 58 (0) 79
RH % (24H TREND) 48 (-46) 100 (0) 68
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.08
PRECIP DURATION 2
PRECIP BEGIN 10 AM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1250 1090
MIXING HGT(FT-AGL/MSL)4110 3580
TRANSPORT WND (MPH) SE 9 SW 9
VENT RATE (KT-FT) 32880 28640
CATEGORY DAY 3 3
INVERSION 60F/9AM 7PM 64F/9AM
DISPERSION 3 3
MAX ADI EARLY 20 GEN POOR 5 VERY POOR 24 FAIR
MAX ADI LATE 31 FAIR 6 VERY POOR 36 FAIR
MAX LVORI EARLY 9 5 7
MAX LVORI LATE 2 6 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ075-212015-
FAYETTE-
INCLUDING THE CITY OF UNIONTOWN
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 60
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 79 (+8) 61 (+1) 79
RH % (24H TREND) 56 (-26) 97 (-3) 70
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.06
PRECIP DURATION 1
PRECIP BEGIN 1 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1230 1300
MIXING HGT(FT-AGL/MSL)4040 4260
TRANSPORT WND (MPH) SE 7 SW 8
VENT RATE (KT-FT) 24240 29820
CATEGORY DAY 2 3
INVERSION 63F/9AM 7PM 67F/9AM
DISPERSION 2 3
MAX ADI EARLY 22 FAIR 4 VERY POOR 20 GEN POOR
MAX ADI LATE 34 FAIR 4 VERY POOR 32 FAIR
MAX LVORI EARLY 9 5 7
MAX LVORI LATE 3 6 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ076-212015-
HIGHER ELEVATIONS OF FAYETTE-
INCLUDING THE CITIES OF CHAMPION AND OHIOPYLE
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 70
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 79 (+10) 58 (0) 78
RH % (24H TREND) 50 (-42) 99 (-1) 66
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.06
PRECIP DURATION 2
PRECIP BEGIN 12 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1110 1250
MIXING HGT(FT-AGL/MSL)3650 4100
TRANSPORT WND (MPH) SE 9 SW 9
VENT RATE (KT-FT) 29200 32800
CATEGORY DAY 3 3
INVERSION 61F/9AM 7PM 64F/9AM
DISPERSION 3 3
MAX ADI EARLY 20 GEN POOR 5 VERY POOR 21 FAIR
MAX ADI LATE 33 FAIR 5 VERY POOR 32 FAIR
MAX LVORI EARLY 7 5 7
MAX LVORI LATE 2 7 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ077-212015-
INDIANA-
INCLUDING THE CITY OF INDIANA
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 60
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 78 (+7) 57 (0) 79
RH % (24H TREND) 50 (-35) 98 (-2) 72
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.08
PRECIP DURATION 1
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1350 1020
MIXING HGT(FT-AGL/MSL)4430 3350
TRANSPORT WND (MPH) SE 9 S 9
VENT RATE (KT-FT) 35440 26800
CATEGORY DAY 3 3
INVERSION 65F/10AM 7PM 64F/9AM
DISPERSION 3 3
MAX ADI EARLY 21 FAIR 4 VERY POOR 29 FAIR
MAX ADI LATE 34 FAIR 5 VERY POOR 40 FAIR
MAX LVORI EARLY 8 5 6
MAX LVORI LATE 2 6 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ078-212015-
HIGHER ELEVATIONS OF INDIANA-
INCLUDING THE CITY OF ARMAGH
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 60
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 77 (+8) 58 (+1) 77
RH % (24H TREND) 49 (-38) 98 (-2) 72
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.08
PRECIP DURATION 2
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1340 950
MIXING HGT(FT-AGL/MSL)4380 3120
TRANSPORT WND (MPH) SE 9 SW 9
VENT RATE (KT-FT) 35040 24960
CATEGORY DAY 3 2
INVERSION 60F/9AM 7PM 64F/9AM
DISPERSION 3 2
MAX ADI EARLY 21 FAIR 4 VERY POOR 30 FAIR
MAX ADI LATE 33 FAIR 5 VERY POOR 40 FAIR
MAX LVORI EARLY 8 5 7
MAX LVORI LATE 2 6 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ001-212015-
HANCOCK-
INCLUDING THE CITY OF WEIRTON
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR CLEAR MCLEAR
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 79 (+5) 59 (-1) 80
RH % (24H TREND) 48 (-34) 96 (-4) 58
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 1280 1420
MIXING HGT(FT-AGL/MSL)4190 4670
TRANSPORT WND (MPH) E 8 SW 9
VENT RATE (KT-FT) 29330 37360
CATEGORY DAY 3 3
INVERSION 63F/9AM 7PM 65F/9AM
DISPERSION 3 3
MAX ADI EARLY 22 FAIR 4 VERY POOR 16 GEN POOR
MAX ADI LATE 35 FAIR 4 VERY POOR 65 GOOD
MAX LVORI EARLY 8 4 8
MAX LVORI LATE 2 6 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ002-212015-
BROOKE-
INCLUDING THE CITIES OF FOLLANSBEE AND WELLSBURG
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR CLEAR MCLEAR
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 79 (+6) 60 (-1) 80
RH % (24H TREND) 49 (-30) 99 (-1) 59
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 1110 1440
MIXING HGT(FT-AGL/MSL)3660 4710
TRANSPORT WND (MPH) E 8 SW 9
VENT RATE (KT-FT) 25620 37680
CATEGORY DAY 3 3
INVERSION 64F/9AM 7PM 66F/9AM
DISPERSION 3 3
MAX ADI EARLY 23 FAIR 3 VERY POOR 15 GEN POOR
MAX ADI LATE 35 FAIR 4 VERY POOR 57 GEN GOOD
MAX LVORI EARLY 8 4 9
MAX LVORI LATE 2 7 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ003-212015-
OHIO-
INCLUDING THE CITY OF WHEELING
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR CLEAR MCLEAR
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 79 (+4) 60 (-1) 80
RH % (24H TREND) 54 (-20) 100 (0) 62
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 1090 1460
MIXING HGT(FT-AGL/MSL)3580 4800
TRANSPORT WND (MPH) E 7 SW 9
VENT RATE (KT-FT) 21480 38400
CATEGORY DAY 2 3
INVERSION 64F/9AM 7PM 66F/9AM
DISPERSION 2 3
MAX ADI EARLY 23 FAIR 4 VERY POOR 16 GEN POOR
MAX ADI LATE 34 FAIR 4 VERY POOR 56 GEN GOOD
MAX LVORI EARLY 8 5 9
MAX LVORI LATE 3 8 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ004-212015-
MARSHALL-
INCLUDING THE CITY OF MOUNDSVILLE
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR CLEAR PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 80 (+3) 61 (-1) 80
RH % (24H TREND) 59 (-21) 100 (0) 68
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 1100 1420
MIXING HGT(FT-AGL/MSL)3590 4660
TRANSPORT WND (MPH) E 6 SW 9
VENT RATE (KT-FT) 17950 37280
CATEGORY DAY 2 3
INVERSION 64F/9AM 7PM 67F/9AM
DISPERSION 2 3
MAX ADI EARLY 23 FAIR 3 VERY POOR 15 GEN POOR
MAX ADI LATE 32 FAIR 3 VERY POOR 58 GEN GOOD
MAX LVORI EARLY 8 6 9
MAX LVORI LATE 3 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ012-212015-
WETZEL-
INCLUDING THE CITY OF NEW MARTINSVILLE
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 79 (+5) 62 (0) 78
RH % (24H TREND) 62 (-24) 100 (0) 72
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 1060 1380
MIXING HGT(FT-AGL/MSL)3490 4530
TRANSPORT WND (MPH) E 6 SW 9
VENT RATE (KT-FT) 17450 36240
CATEGORY DAY 2 3
INVERSION 65F/9AM 7PM 67F/9AM
DISPERSION 2 3
MAX ADI EARLY 22 FAIR 4 VERY POOR 13 GEN POOR
MAX ADI LATE 35 FAIR 3 VERY POOR 64 GOOD
MAX LVORI EARLY 8 6 9
MAX LVORI LATE 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ021-212015-
MARION-
INCLUDING THE CITY OF FAIRMONT
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 60
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 79 (+6) 62 (0) 78
RH % (24H TREND) 63 (-26) 100 (0) 75
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.05
PRECIP DURATION 1
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1060 1290
MIXING HGT(FT-AGL/MSL)3470 4230
TRANSPORT WND (MPH) E 6 W 8
VENT RATE (KT-FT) 17350 29610
CATEGORY DAY 2 3
INVERSION 64F/9AM 7PM 67F/9AM
DISPERSION 2 3
MAX ADI EARLY 20 GEN POOR 3 VERY POOR 13 GEN POOR
MAX ADI LATE 33 FAIR 3 VERY POOR 57 GEN GOOD
MAX LVORI EARLY 8 6 9
MAX LVORI LATE 3 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ509-212015-
MONONGALIA-
INCLUDING THE CITY OF MORGANTOWN
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 70
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 79 (+7) 61 (0) 78
RH % (24H TREND) 61 (-29) 100 (0) 72
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.04
PRECIP DURATION 1
PRECIP BEGIN 12 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1140 1320
MIXING HGT(FT-AGL/MSL)3740 4320
TRANSPORT WND (MPH) E 6 SW 8
VENT RATE (KT-FT) 18700 30240
CATEGORY DAY 2 3
INVERSION 64F/9AM 7PM 67F/9AM
DISPERSION 2 3
MAX ADI EARLY 20 GEN POOR 3 VERY POOR 17 GEN POOR
MAX ADI LATE 35 FAIR 3 VERY POOR 43 GEN GOOD
MAX LVORI EARLY 9 6 9
MAX LVORI LATE 3 7 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ510-212015-
RIDGES OF EASTERN MONONGALIA AND NORTHWESTERN PRESTON-
INCLUDING THE CITY OF COOPERS ROCK
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 70
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 77 (+7) 60 (0) 76
RH % (24H TREND) 58 (-33) 99 (-1) 72
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.05
PRECIP DURATION 2
PRECIP BEGIN 7 AM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1070 1300
MIXING HGT(FT-AGL/MSL)3510 4260
TRANSPORT WND (MPH) SE 7 SW 9
VENT RATE (KT-FT) 21060 34080
CATEGORY DAY 2 3
INVERSION 62F/9AM 7PM 65F/9AM
DISPERSION 2 3
MAX ADI EARLY 21 FAIR 4 VERY POOR 15 GEN POOR
MAX ADI LATE 35 FAIR 4 VERY POOR 37 FAIR
MAX LVORI EARLY 6 5 8
MAX LVORI LATE 3 7 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ511-212015-
PRESTON-
INCLUDING THE CITIES OF KINGWOOD AND BRUCETON MILLS
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 60
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 80 (+8) 59 (-1) 77
RH % (24H TREND) 54 (-33) 99 (-1) 70
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.04
PRECIP DURATION 2
PRECIP BEGIN 6 AM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1030 1260
MIXING HGT(FT-AGL/MSL)3380 4130
TRANSPORT WND (MPH) E 7 W 9
VENT RATE (KT-FT) 20280 33040
CATEGORY DAY 2 3
INVERSION 63F/9AM 7PM 66F/9AM
DISPERSION 2 3
MAX ADI EARLY 22 FAIR 4 VERY POOR 16 GEN POOR
MAX ADI LATE 35 FAIR 4 VERY POOR 34 FAIR
MAX LVORI EARLY 7 5 8
MAX LVORI LATE 2 7 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ512-212015-
EASTERN PRESTON-
INCLUDING THE CITIES OF TERRA ALTA, ROWLESBURG, AND HAZELTON
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 60
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 78 (+6) 59 (-1) 76
RH % (24H TREND) 57 (-28) 99 (-1) 72
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.05
PRECIP DURATION 4
PRECIP BEGIN 6 AM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 990 1160
MIXING HGT(FT-AGL/MSL)3230 3800
TRANSPORT WND (MPH) SE 8 W 9
VENT RATE (KT-FT) 22610 30400
CATEGORY DAY 2 3
INVERSION 61F/9AM 7PM 64F/9AM
DISPERSION 2 3
MAX ADI EARLY 22 FAIR 5 VERY POOR 16 GEN POOR
MAX ADI LATE 37 FAIR 5 VERY POOR 34 FAIR
MAX LVORI EARLY 6 5 8
MAX LVORI LATE 3 7 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ513-212015-
WESTERN TUCKER-
INCLUDING THE CITIES OF PARSONS, HENDRICKS, AND SAINT GEORGE
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 30 40 70
CHANCE OF THUNDER (%) 20 20 30
TEMP (24H TREND) 81 (+7) 61 (-1) 78
RH % (24H TREND) 55 (-26) 99 (-1) 68
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.01 0.09
PRECIP DURATION 0 1 4
PRECIP BEGIN 3 PM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 920 1130
MIXING HGT(FT-AGL/MSL)3020 3720
TRANSPORT WND (MPH) S 8 W 9
VENT RATE (KT-FT) 21140 29760
CATEGORY DAY 2 3
INVERSION 67F/10AM 7PM 65F/9AM
DISPERSION 2 3
MAX ADI EARLY 21 FAIR 4 VERY POOR 14 GEN POOR
MAX ADI LATE 37 FAIR 4 VERY POOR 59 GEN GOOD
MAX LVORI EARLY 6 6 8
MAX LVORI LATE 3 8 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ514-212015-
EASTERN TUCKER-
INCLUDING THE CITIES OF DAVIS, THOMAS, AND CANAAN VALLEY
1244 AM EDT FRI AUG 21 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 20 50 80
CHANCE OF THUNDER (%) 20 20 30
TEMP (24H TREND) 76 (+5) 55 (-2) 75
RH % (24H TREND) 62 (-17) 100 (0) 75
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.10 0.20
PRECIP DURATION 0 1 5
PRECIP BEGIN 3 PM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 780 1050
MIXING HGT(FT-AGL/MSL)2540 3430
TRANSPORT WND (MPH) SE 9 W 10
VENT RATE (KT-FT) 20320 30870
CATEGORY DAY 2 3
INVERSION 64F/10AM 8PM 62F/9AM
DISPERSION 2 3
MAX ADI EARLY 19 GEN POOR 5 VERY POOR 14 GEN POOR
MAX ADI LATE 38 FAIR 5 VERY POOR 52 GEN GOOD
MAX LVORI EARLY 8 6 9
MAX LVORI LATE 3 9 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
FORECAST FOR DAYS 3 THROUGH 7
SUNDAY
SHOWERS AND A CHANCE OF THUNDERSTORMS. LOWS AROUND 60.
HIGHS IN THE LOWER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY
PARTLY CLOUDY. PATCHY FOG THROUGH THE NIGHT. LOWS IN
THE MID 50S. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS AROUND
5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE MID
70S. WEST WINDS 5 TO 10 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE UPPER 50S. HIGHS IN THE
UPPER 70S. SOUTH WINDS AROUND 5 MPH.
THURSDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS. LOWS IN THE LOWER
60S. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS AROUND 5 MPH.
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