251
FNUS51 KPBZ 201742
FWFPBZ
FIRE WEATHER PLANNING FORECAST
NATIONAL WEATHER SERVICE PITTSBURGH PA
142 PM EDT THU AUG 20 2026
DISCUSSION
RAIN WILL CONTINUE TO TAPER FROM WEST TO EAST THROUGH THIS
EVENING. A BRIEF PERIOD OF RELATIVELY DRIER WEATHER IS FORECAST
FOR FRIDAY, ALTHOUGH SHOWERS MAY DEVELOP ALONG THE HIGHER TERRAIN.
ADDITIONAL ROUNDS OF RAIN ARE EXPECTED THIS WEEKEND. THE OVERALL
FIRE WEATHER CONCERN REMAINS NEGLIGIBLE.
OHZ039-210815-
TUSCARAWAS-
INCLUDING THE CITIES OF NEW PHILADELPHIA AND DOVER
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 0 70
CHANCE OF THUNDER (%) 0 0 0 30
TEMP (24H TREND) 58 (-5) 80 (+5) 59 79
RH % (24H TREND) 100 (0) 59 (-19) 100 65
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR SW 5
PRECIP AMOUNT 0.00 0.00 0.00 0.06
PRECIP DURATION 3
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 8PM 64F/9AM 7PM 65F/9AM
DISPERSION 2 3
MAX ADI EARLY 5 VERY POOR 22 FAIR 3 VERY POOR 17 GEN POOR
MAX ADI LATE 4 VERY POOR 37 FAIR 3 VERY POOR 40 FAIR
MAX LVORI EARLY 9 8 6 10
MAX LVORI LATE 9 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ040-210815-
CARROLL-
INCLUDING THE CITIES OF CARROLLTON AND MALVERN
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR CLEAR PCLDY
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 0 60
CHANCE OF THUNDER (%) 0 0 0 30
TEMP (24H TREND) 57 (-5) 79 (+5) 59 79
RH % (24H TREND) 100 (0) 58 (-21) 100 64
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR SW 6
PRECIP AMOUNT 0.00 0.00 0.00 0.04
PRECIP DURATION 3
PRECIP BEGIN 2 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 8PM 63F/9AM 7PM 65F/9AM
DISPERSION 2 3
MAX ADI EARLY 5 VERY POOR 25 FAIR 4 VERY POOR 16 GEN POOR
MAX ADI LATE 4 VERY POOR 43 GEN GOOD 4 VERY POOR 40 FAIR
MAX LVORI EARLY 7 8 6 9
MAX LVORI LATE 9 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ041-210815-
COLUMBIANA-
INCLUDING THE CITIES OF EAST LIVERPOOL, SALEM, AND COLUMBIANA
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 0 60
CHANCE OF THUNDER (%) 0 0 0 30
TEMP (24H TREND) 56 (-5) 79 (+6) 58 79
RH % (24H TREND) 100 (+1) 56 (-22) 100 62
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR SW 5
PRECIP AMOUNT 0.00 0.00 0.00 0.04
PRECIP DURATION 3
PRECIP BEGIN 2 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 8PM 68F/10AM 7PM 65F/9AM
DISPERSION 3 3
MAX ADI EARLY 5 VERY POOR 29 FAIR 4 VERY POOR 17 GEN POOR
MAX ADI LATE 4 VERY POOR 47 GEN GOOD 4 VERY POOR 41 GEN GOOD
MAX LVORI EARLY 8 8 6 9
MAX LVORI LATE 9 3 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ048-210815-
COSHOCTON-
INCLUDING THE CITY OF COSHOCTON
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 0 80
CHANCE OF THUNDER (%) 0 0 0 30
TEMP (24H TREND) 58 (-4) 79 (+4) 58 78
RH % (24H TREND) 100 (0) 64 (-14) 100 69
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR SW 5
PRECIP AMOUNT 0.00 0.00 0.00 0.08
PRECIP DURATION 4
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 7PM 64F/9AM 7PM 65F/9AM
DISPERSION 2 3
MAX ADI EARLY 5 VERY POOR 19 GEN POOR 3 VERY POOR 18 GEN POOR
MAX ADI LATE 4 VERY POOR 32 FAIR 3 VERY POOR 41 GEN GOOD
MAX LVORI EARLY 9 8 7 9
MAX LVORI LATE 9 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ049-210815-
HARRISON-
INCLUDING THE CITY OF CADIZ
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 0 60
CHANCE OF THUNDER (%) 0 0 0 20
TEMP (24H TREND) 58 (-5) 80 (+6) 59 79
RH % (24H TREND) 100 (0) 60 (-21) 100 65
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR SW 5
PRECIP AMOUNT 0.00 0.00 0.00 0.03
PRECIP DURATION 3
PRECIP BEGIN 2 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 8PM 64F/9AM 7PM 66F/9AM
DISPERSION 2 3
MAX ADI EARLY 5 VERY POOR 24 FAIR 3 VERY POOR 16 GEN POOR
MAX ADI LATE 4 VERY POOR 36 FAIR 3 VERY POOR 41 GEN GOOD
MAX LVORI EARLY 9 8 6 9
MAX LVORI LATE 9 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ050-210815-
JEFFERSON OH-
INCLUDING THE CITY OF STEUBENVILLE
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 0 60
CHANCE OF THUNDER (%) 0 0 0 30
TEMP (24H TREND) 58 (-5) 79 (+6) 59 79
RH % (24H TREND) 100 (0) 59 (-21) 100 62
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR SW 5
PRECIP AMOUNT 0.00 0.00 0.00 0.03
PRECIP DURATION 3
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
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 8PM 64F/9AM 7PM 66F/9AM
DISPERSION 3 3
MAX ADI EARLY 5 VERY POOR 25 FAIR 3 VERY POOR 18 GEN POOR
MAX ADI LATE 4 VERY POOR 39 FAIR 3 VERY POOR 41 GEN GOOD
MAX LVORI EARLY 8 8 6 9
MAX LVORI LATE 9 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ057-210815-
MUSKINGUM-
INCLUDING THE CITY OF ZANESVILLE
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 0 70
CHANCE OF THUNDER (%) 0 0 0 30
TEMP (24H TREND) 59 (-4) 79 (+3) 59 78
RH % (24H TREND) 100 (+1) 67 (-15) 100 70
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR SW 5
PRECIP AMOUNT 0.00 0.00 0.00 0.06
PRECIP DURATION 3
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 7PM 64F/9AM 7PM 66F/9AM
DISPERSION 2 3
MAX ADI EARLY 4 VERY POOR 18 GEN POOR 3 VERY POOR 19 GEN POOR
MAX ADI LATE 3 VERY POOR 30 FAIR 3 VERY POOR 39 FAIR
MAX LVORI EARLY 9 8 8 9
MAX LVORI LATE 9 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ058-210815-
GUERNSEY-
INCLUDING THE CITY OF CAMBRIDGE
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 0 60
CHANCE OF THUNDER (%) 0 0 0 20
TEMP (24H TREND) 59 (-4) 80 (+5) 59 79
RH % (24H TREND) 100 (0) 64 (-19) 100 65
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR SW 5
PRECIP AMOUNT 0.00 0.00 0.00 0.04
PRECIP DURATION 3
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 7PM 65F/9AM 7PM 66F/9AM
DISPERSION 2 3
MAX ADI EARLY 4 VERY POOR 19 GEN POOR 3 VERY POOR 16 GEN POOR
MAX ADI LATE 4 VERY POOR 31 FAIR 3 VERY POOR 40 FAIR
MAX LVORI EARLY 9 8 7 9
MAX LVORI LATE 9 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ059-210815-
BELMONT-
INCLUDING THE CITIES OF MARTINS FERRY AND ST. CLAIRSVILLE
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 0 50
CHANCE OF THUNDER (%) 0 0 0 20
TEMP (24H TREND) 59 (-5) 80 (+7) 60 79
RH % (24H TREND) 100 (0) 64 (-20) 100 65
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR SW 5
PRECIP AMOUNT 0.00 0.00 0.00 0.02
PRECIP DURATION 1
PRECIP BEGIN 2 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 8PM 65F/9AM 7PM 67F/9AM
DISPERSION 2 3
MAX ADI EARLY 5 VERY POOR 21 FAIR 3 VERY POOR 17 GEN POOR
MAX ADI LATE 4 VERY POOR 30 FAIR 3 VERY POOR 41 GEN GOOD
MAX LVORI EARLY 9 8 8 9
MAX LVORI LATE 9 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ068-210815-
NOBLE-
INCLUDING THE CITY OF CALDWELL
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 0 60
CHANCE OF THUNDER (%) 0 0 0 20
TEMP (24H TREND) 60 (-4) 80 (+6) 60 79
RH % (24H TREND) 100 (0) 67 (-19) 100 67
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.03
PRECIP DURATION 3
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 7PM 66F/9AM 7PM 66F/9AM
DISPERSION 2 3
MAX ADI EARLY 4 VERY POOR 17 GEN POOR 3 VERY POOR 16 GEN POOR
MAX ADI LATE 4 VERY POOR 25 FAIR 3 VERY POOR 36 FAIR
MAX LVORI EARLY 9 8 8 9
MAX LVORI LATE 9 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ069-210815-
MONROE-
INCLUDING THE CITY OF WOODSFIELD
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 0 40
CHANCE OF THUNDER (%) 0 0 0 20
TEMP (24H TREND) 61 (-4) 80 (+7) 61 79
RH % (24H TREND) 100 (0) 67 (-20) 100 67
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.02
PRECIP DURATION 1
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
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 7PM 66F/9AM 7PM 67F/9AM
DISPERSION 2 3
MAX ADI EARLY 3 VERY POOR 17 GEN POOR 3 VERY POOR 17 GEN POOR
MAX ADI LATE 4 VERY POOR 25 FAIR 3 VERY POOR 34 FAIR
MAX LVORI EARLY 9 8 8 9
MAX LVORI LATE 9 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ007-210815-
MERCER-
INCLUDING THE CITIES OF SHARON, HERMITAGE, AND GROVE CITY
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR CLEAR PCLDY
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 0 60
CHANCE OF THUNDER (%) 0 0 0 40
TEMP (24H TREND) 55 (-4) 80 (+7) 58 80
RH % (24H TREND) 100 (+2) 50 (-26) 100 60
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR SW 6
PRECIP AMOUNT 0.00 0.00 0.00 0.05
PRECIP DURATION 3
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
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 8PM 68F/10AM 7PM 65F/9AM
DISPERSION 3 3
MAX ADI EARLY 4 VERY POOR 28 FAIR 4 VERY POOR 21 FAIR
MAX ADI LATE 4 VERY POOR 49 GEN GOOD 5 VERY POOR 41 GEN GOOD
MAX LVORI EARLY 8 8 6 8
MAX LVORI LATE 9 1 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ008-210815-
VENANGO-
INCLUDING THE CITIES OF OIL CITY AND FRANKLIN
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 0 60
CHANCE OF THUNDER (%) 0 0 0 40
TEMP (24H TREND) 53 (-5) 79 (+8) 57 78
RH % (24H TREND) 100 (+2) 54 (-26) 100 68
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.05
PRECIP DURATION 3
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 8PM 66F/10AM 7PM 63F/9AM
DISPERSION 3 3
MAX ADI EARLY 4 VERY POOR 24 FAIR 4 VERY POOR 24 FAIR
MAX ADI LATE 3 VERY POOR 43 GEN GOOD 4 VERY POOR 37 FAIR
MAX LVORI EARLY 8 8 6 8
MAX LVORI LATE 9 2 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ009-210815-
FOREST-
INCLUDING THE CITY OF TIONESTA
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 0 70
CHANCE OF THUNDER (%) 0 0 0 30
TEMP (24H TREND) 52 (-5) 79 (+10) 55 78
RH % (24H TREND) 100 (+3) 48 (-28) 99 67
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.07
PRECIP DURATION 4
PRECIP BEGIN 7 AM
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 7PM 65F/10AM 7PM 62F/9AM
DISPERSION 3 3
MAX ADI EARLY 3 VERY POOR 23 FAIR 4 VERY POOR 31 FAIR
MAX ADI LATE 3 VERY POOR 41 GEN GOOD 5 VERY POOR 31 FAIR
MAX LVORI EARLY 9 8 6 8
MAX LVORI LATE 9 1 8 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ013-210815-
LAWRENCE-
INCLUDING THE CITIES OF NEW CASTLE AND ELLWOOD CITY
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 0 50
CHANCE OF THUNDER (%) 0 0 0 30
TEMP (24H TREND) 55 (-5) 80 (+7) 58 80
RH % (24H TREND) 100 (+1) 54 (-24) 100 61
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.04
PRECIP DURATION 1
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
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 8PM 68F/10AM 7PM 66F/9AM
DISPERSION 3 3
MAX ADI EARLY 4 VERY POOR 29 FAIR 5 VERY POOR 20 GEN POOR
MAX ADI LATE 4 VERY POOR 50 GEN GOOD 5 VERY POOR 41 GEN GOOD
MAX LVORI EARLY 9 8 6 9
MAX LVORI LATE 9 3 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ014-210815-
BUTLER-
INCLUDING THE CITY OF BUTLER
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 0 50
CHANCE OF THUNDER (%) 0 0 0 30
TEMP (24H TREND) 55 (-5) 80 (+9) 58 80
RH % (24H TREND) 100 (+2) 58 (-26) 100 67
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 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 8PM 67F/10AM 7PM 65F/9AM
DISPERSION 3 3
MAX ADI EARLY 5 VERY POOR 29 FAIR 5 VERY POOR 19 GEN POOR
MAX ADI LATE 4 VERY POOR 49 GEN GOOD 5 VERY POOR 38 FAIR
MAX LVORI EARLY 9 8 6 8
MAX LVORI LATE 9 3 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ015-210815-
CLARION-
INCLUDING THE CITY OF CLARION
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 0 60
CHANCE OF THUNDER (%) 0 0 0 30
TEMP (24H TREND) 54 (-5) 79 (+10) 58 78
RH % (24H TREND) 100 (+3) 53 (-28) 100 68
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.06
PRECIP DURATION 4
PRECIP BEGIN 6 AM
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 8PM 65F/10AM 7PM 63F/9AM
DISPERSION 3 3
MAX ADI EARLY 4 VERY POOR 24 FAIR 4 VERY POOR 24 FAIR
MAX ADI LATE 4 VERY POOR 45 GEN GOOD 5 VERY POOR 33 FAIR
MAX LVORI EARLY 9 8 6 8
MAX LVORI LATE 9 3 8 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ016-210815-
JEFFERSON PA-
INCLUDING THE CITIES OF PUNXSUTAWNEY AND BROOKVILLE
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 0 70
CHANCE OF THUNDER (%) 0 0 0 30
TEMP (24H TREND) 53 (-6) 77 (+10) 57 76
RH % (24H TREND) 100 (+2) 53 (-31) 100 72
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.09
PRECIP DURATION 4
PRECIP BEGIN 6 AM
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 8PM 65F/10AM 7PM 63F/9AM
DISPERSION 3 3
MAX ADI EARLY 5 VERY POOR 26 FAIR 4 VERY POOR 26 FAIR
MAX ADI LATE 4 VERY POOR 44 GEN GOOD 5 VERY POOR 32 FAIR
MAX LVORI EARLY 8 8 6 8
MAX LVORI LATE 9 2 7 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ020-210815-
BEAVER-
INCLUDING THE CITIES OF ALIQUIPPA, BEAVER FALLS, AMBRIDGE,
AND MONACA
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 0 50
CHANCE OF THUNDER (%) 0 0 0 30
TEMP (24H TREND) 57 (-5) 80 (+8) 59 80
RH % (24H TREND) 100 (+1) 57 (-24) 100 62
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.02
PRECIP DURATION 1
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
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 8PM 63F/9AM 7PM 66F/9AM
DISPERSION 3 3
MAX ADI EARLY 5 VERY POOR 31 FAIR 4 VERY POOR 19 GEN POOR
MAX ADI LATE 4 VERY POOR 48 GEN GOOD 4 VERY POOR 37 FAIR
MAX LVORI EARLY 9 8 6 9
MAX LVORI LATE 9 2 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ021-210815-
ALLEGHENY-
INCLUDING THE CITY OF PITTSBURGH METRO AREA
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 0 50
CHANCE OF THUNDER (%) 0 0 0 30
TEMP (24H TREND) 58 (-6) 80 (+9) 61 80
RH % (24H TREND) 100 (+2) 62 (-23) 100 65
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR SW 6
PRECIP AMOUNT 0.00 0.00 0.00 0.02
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 8PM 64F/9AM 7PM 67F/9AM
DISPERSION 3 3
MAX ADI EARLY 5 VERY POOR 31 FAIR 4 VERY POOR 19 GEN POOR
MAX ADI LATE 4 VERY POOR 46 GEN GOOD 4 VERY POOR 37 FAIR
MAX LVORI EARLY 9 8 6 9
MAX LVORI LATE 9 3 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ022-210815-
ARMSTRONG-
INCLUDING THE CITIES OF KITTANNING AND FORD CITY
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 0 60
CHANCE OF THUNDER (%) 0 0 0 30
TEMP (24H TREND) 55 (-6) 79 (+10) 59 80
RH % (24H TREND) 100 (+1) 59 (-28) 100 70
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR S 5
PRECIP AMOUNT 0.00 0.00 0.00 0.04
PRECIP DURATION 3
PRECIP BEGIN 6 AM
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 8PM 67F/10AM 7PM 65F/9AM
DISPERSION 3 3
MAX ADI EARLY 5 VERY POOR 28 FAIR 4 VERY POOR 21 FAIR
MAX ADI LATE 3 VERY POOR 49 GEN GOOD 4 VERY POOR 31 FAIR
MAX LVORI EARLY 9 8 6 8
MAX LVORI LATE 9 3 9 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ029-210815-
WASHINGTON-
INCLUDING THE CITIES OF WASHINGTON AND CANONSBURG
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 0 50
CHANCE OF THUNDER (%) 0 0 0 30
TEMP (24H TREND) 58 (-5) 78 (+7) 60 79
RH % (24H TREND) 100 (+1) 64 (-22) 100 66
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR SW 6
PRECIP AMOUNT 0.00 0.00 0.00 0.02
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 8PM 64F/9AM 7PM 66F/9AM
DISPERSION 3 3
MAX ADI EARLY 5 VERY POOR 25 FAIR 4 VERY POOR 21 FAIR
MAX ADI LATE 4 VERY POOR 37 FAIR 4 VERY POOR 37 FAIR
MAX LVORI EARLY 8 8 6 9
MAX LVORI LATE 9 3 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ031-210815-
GREENE-
INCLUDING THE CITY OF WAYNESBURG
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 0 30 50
CHANCE OF THUNDER (%) 0 0 30 30
TEMP (24H TREND) 59 (-5) 78 (+7) 61 78
RH % (24H TREND) 100 (+1) 72 (-20) 100 70
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR SW 5
PRECIP AMOUNT 0.00 0.00 0.01 0.02
PRECIP DURATION 0 1
PRECIP BEGIN 6 PM 2 PM
PRECIP END 9 PM 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 8PM 65F/9AM 7PM 66F/9AM
DISPERSION 2 3
MAX ADI EARLY 5 VERY POOR 20 GEN POOR 4 VERY POOR 21 FAIR
MAX ADI LATE 3 VERY POOR 29 FAIR 3 VERY POOR 39 FAIR
MAX LVORI EARLY 9 8 7 9
MAX LVORI LATE 9 3 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ073-210815-
WESTMORELAND-
INCLUDING THE CITIES OF MURRYSVILLE, GREENSBURG, NEW KENSINGTON,
LOWER BURRELL, LATROBE, AND MONESSEN
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 0 20 60
CHANCE OF THUNDER (%) 0 0 20 30
TEMP (24H TREND) 57 (-6) 79 (+9) 60 79
RH % (24H TREND) 100 (+1) 64 (-25) 100 70
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR SW 6
PRECIP AMOUNT 0.00 0.00 0.00 0.03
PRECIP DURATION 1 3
PRECIP BEGIN 8 PM CONTINUING
PRECIP END CONTINUING 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 8PM 64F/9AM 7PM 67F/9AM
DISPERSION 3 3
MAX ADI EARLY 5 VERY POOR 31 FAIR 4 VERY POOR 21 FAIR
MAX ADI LATE 3 VERY POOR 46 GEN GOOD 4 VERY POOR 33 FAIR
MAX LVORI EARLY 9 8 7 9
MAX LVORI LATE 9 3 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ074-210815-
HIGHER ELEVATIONS OF WESTMORELAND-
INCLUDING THE CITIES OF LIGONIER AND DONEGAL
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 0 30 60
CHANCE OF THUNDER (%) 0 0 20 30
TEMP (24H TREND) 56 (-6) 79 (+11) 59 79
RH % (24H TREND) 100 (+1) 61 (-28) 100 70
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.03
PRECIP DURATION 1 4
PRECIP BEGIN 7 PM CONTINUING
PRECIP END CONTINUING 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 8PM 62F/9AM 7PM 65F/9AM
DISPERSION 3 3
MAX ADI EARLY 5 VERY POOR 34 FAIR 5 VERY POOR 26 FAIR
MAX ADI LATE 3 VERY POOR 47 GEN GOOD 5 VERY POOR 37 FAIR
MAX LVORI EARLY 9 8 7 8
MAX LVORI LATE 9 2 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ075-210815-
FAYETTE-
INCLUDING THE CITY OF UNIONTOWN
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 0 20 60
CHANCE OF THUNDER (%) 0 0 20 30
TEMP (24H TREND) 58 (-6) 79 (+8) 61 79
RH % (24H TREND) 100 (+4) 69 (-16) 100 71
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR SW 5
PRECIP AMOUNT 0.00 0.00 0.01 0.02
PRECIP DURATION 0 3
PRECIP BEGIN 6 PM 2 PM
PRECIP END 6 AM 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 7PM 65F/9AM 7PM 67F/9AM
DISPERSION 2 3
MAX ADI EARLY 5 VERY POOR 26 FAIR 4 VERY POOR 21 FAIR
MAX ADI LATE 3 VERY POOR 38 FAIR 4 VERY POOR 34 FAIR
MAX LVORI EARLY 9 8 6 9
MAX LVORI LATE 9 3 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ076-210815-
HIGHER ELEVATIONS OF FAYETTE-
INCLUDING THE CITIES OF CHAMPION AND OHIOPYLE
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 0 30 60
CHANCE OF THUNDER (%) 0 0 20 30
TEMP (24H TREND) 56 (-6) 78 (+9) 59 78
RH % (24H TREND) 100 (+1) 63 (-25) 100 67
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.01 0.02
PRECIP DURATION 1 3
PRECIP BEGIN 6 PM 2 PM
PRECIP END 6 AM 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 8PM 62F/9AM 7PM 65F/9AM
DISPERSION 3 3
MAX ADI EARLY 4 VERY POOR 28 FAIR 5 VERY POOR 24 FAIR
MAX ADI LATE 3 VERY POOR 41 GEN GOOD 5 VERY POOR 35 FAIR
MAX LVORI EARLY 9 8 7 8
MAX LVORI LATE 9 3 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ077-210815-
INDIANA-
INCLUDING THE CITY OF INDIANA
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE SHOWERS TSTMS
CHANCE PRECIP (%) 0 0 20 60
CHANCE OF THUNDER (%) 0 0 0 30
TEMP (24H TREND) 55 (-7) 79 (+11) 59 78
RH % (24H TREND) 100 (+2) 60 (-30) 100 73
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR S 5
PRECIP AMOUNT 0.00 0.00 0.01 0.05
PRECIP DURATION 1 4
PRECIP BEGIN 8 PM CONTINUING
PRECIP END CONTINUING 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 8PM 67F/10AM 7PM 65F/9AM
DISPERSION 3 3
MAX ADI EARLY 5 VERY POOR 30 FAIR 4 VERY POOR 23 FAIR
MAX ADI LATE 3 VERY POOR 48 GEN GOOD 5 VERY POOR 31 FAIR
MAX LVORI EARLY 9 8 6 8
MAX LVORI LATE 9 3 8 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ078-210815-
HIGHER ELEVATIONS OF INDIANA-
INCLUDING THE CITY OF ARMAGH
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE SHOWERS TSTMS
CHANCE PRECIP (%) 0 0 30 70
CHANCE OF THUNDER (%) 0 0 0 30
TEMP (24H TREND) 55 (-7) 78 (+11) 59 77
RH % (24H TREND) 100 (+2) 62 (-29) 100 75
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.01 0.04
PRECIP DURATION 0 4
PRECIP BEGIN 3 AM 6 AM
PRECIP END 5 AM 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 8PM 62F/9AM 7PM 65F/9AM
DISPERSION 3 2
MAX ADI EARLY 5 VERY POOR 34 FAIR 4 VERY POOR 24 FAIR
MAX ADI LATE 4 VERY POOR 48 GEN GOOD 5 VERY POOR 30 FAIR
MAX LVORI EARLY 9 8 6 9
MAX LVORI LATE 9 3 8 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ001-210815-
HANCOCK-
INCLUDING THE CITY OF WEIRTON
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 0 60
CHANCE OF THUNDER (%) 0 0 0 30
TEMP (24H TREND) 58 (-5) 79 (+6) 60 79
RH % (24H TREND) 100 (+1) 59 (-21) 100 63
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.02
PRECIP DURATION 3
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
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 8PM 64F/9AM 7PM 66F/9AM
DISPERSION 3 3
MAX ADI EARLY 5 VERY POOR 31 FAIR 4 VERY POOR 19 GEN POOR
MAX ADI LATE 4 VERY POOR 44 GEN GOOD 3 VERY POOR 37 FAIR
MAX LVORI EARLY 6 8 6 9
MAX LVORI LATE 9 3 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ002-210815-
BROOKE-
INCLUDING THE CITIES OF FOLLANSBEE AND WELLSBURG
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 0 50
CHANCE OF THUNDER (%) 0 0 0 20
TEMP (24H TREND) 59 (-5) 80 (+7) 61 80
RH % (24H TREND) 100 (0) 61 (-21) 100 62
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR SW 5
PRECIP AMOUNT 0.00 0.00 0.00 0.02
PRECIP DURATION 1
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
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 8PM 65F/9AM 7PM 66F/9AM
DISPERSION 3 3
MAX ADI EARLY 5 VERY POOR 26 FAIR 3 VERY POOR 21 FAIR
MAX ADI LATE 4 VERY POOR 37 FAIR 3 VERY POOR 40 FAIR
MAX LVORI EARLY 6 8 6 9
MAX LVORI LATE 9 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ003-210815-
OHIO-
INCLUDING THE CITY OF WHEELING
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 0 50
CHANCE OF THUNDER (%) 0 0 0 20
TEMP (24H TREND) 59 (-5) 79 (+7) 61 79
RH % (24H TREND) 100 (+1) 65 (-22) 100 66
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR SW 5
PRECIP AMOUNT 0.00 0.00 0.00 0.01
PRECIP DURATION 1
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
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 8PM 65F/9AM 7PM 66F/9AM
DISPERSION 2 3
MAX ADI EARLY 4 VERY POOR 23 FAIR 3 VERY POOR 21 FAIR
MAX ADI LATE 4 VERY POOR 31 FAIR 3 VERY POOR 53 GEN GOOD
MAX LVORI EARLY 8 8 6 9
MAX LVORI LATE 9 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ004-210815-
MARSHALL-
INCLUDING THE CITY OF MOUNDSVILLE
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 0 20 50
CHANCE OF THUNDER (%) 0 0 20 20
TEMP (24H TREND) 60 (-5) 80 (+8) 61 80
RH % (24H TREND) 100 (0) 70 (-21) 100 69
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR SW 5
PRECIP AMOUNT 0.00 0.00 0.01 0.01
PRECIP DURATION 0 1
PRECIP BEGIN 6 PM 2 PM
PRECIP END 8 PM CONTINUING
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 7PM 65F/9AM 7PM 66F/9AM
DISPERSION 2 3
MAX ADI EARLY 4 VERY POOR 19 GEN POOR 3 VERY POOR 17 GEN POOR
MAX ADI LATE 4 VERY POOR 26 FAIR 3 VERY POOR 36 FAIR
MAX LVORI EARLY 9 8 7 9
MAX LVORI LATE 9 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ012-210815-
WETZEL-
INCLUDING THE CITY OF NEW MARTINSVILLE
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 0 30 50
CHANCE OF THUNDER (%) 0 0 30 20
TEMP (24H TREND) 61 (-4) 78 (+5) 62 78
RH % (24H TREND) 100 (0) 75 (-18) 100 71
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.02 0.01
PRECIP DURATION 0 1
PRECIP BEGIN 6 PM 2 PM
PRECIP END 8 PM CONTINUING
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 7PM 66F/9AM 7PM 67F/9AM
DISPERSION 2 3
MAX ADI EARLY 3 VERY POOR 17 GEN POOR 3 VERY POOR 18 GEN POOR
MAX ADI LATE 4 VERY POOR 25 FAIR 2 VERY POOR 35 FAIR
MAX LVORI EARLY 9 8 9 9
MAX LVORI LATE 9 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ021-210815-
MARION-
INCLUDING THE CITY OF FAIRMONT
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 40 30 30 50
CHANCE OF THUNDER (%) 40 30 30 30
TEMP (24H TREND) 61 (-4) 78 (+5) 62 78
RH % (24H TREND) 100 (+2) 76 (-16) 100 73
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR SW 5
PRECIP AMOUNT 0.02 0.03 0.02 0.01
PRECIP DURATION 0 1 1 1
PRECIP BEGIN 6 PM 2 PM CONTINUING 2 PM
PRECIP END 8 PM CONTINUING 9 PM 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 7PM 66F/9AM 7PM 67F/9AM
DISPERSION 2 3
MAX ADI EARLY 5 VERY POOR 20 GEN POOR 3 VERY POOR 17 GEN POOR
MAX ADI LATE 3 VERY POOR 26 FAIR 3 VERY POOR 34 FAIR
MAX LVORI EARLY 10 9 8 9
MAX LVORI LATE 9 3 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ509-210815-
MONONGALIA-
INCLUDING THE CITY OF MORGANTOWN
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 40 30 30 50
CHANCE OF THUNDER (%) 40 20 30 30
TEMP (24H TREND) 60 (-4) 78 (+6) 62 78
RH % (24H TREND) 100 (+2) 73 (-18) 100 71
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR SW 5
PRECIP AMOUNT 0.02 0.01 0.02 0.01
PRECIP DURATION 0 1 1 1
PRECIP BEGIN 6 PM 2 PM CONTINUING 2 PM
PRECIP END 8 PM CONTINUING 9 PM 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 7PM 65F/9AM 7PM 67F/9AM
DISPERSION 2 3
MAX ADI EARLY 4 VERY POOR 20 GEN POOR 3 VERY POOR 19 GEN POOR
MAX ADI LATE 3 VERY POOR 29 FAIR 3 VERY POOR 34 FAIR
MAX LVORI EARLY 9 9 7 9
MAX LVORI LATE 9 3 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ510-210815-
RIDGES OF EASTERN MONONGALIA AND NORTHWESTERN PRESTON-
INCLUDING THE CITY OF COOPERS ROCK
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 50 30 40 50
CHANCE OF THUNDER (%) 40 30 30 30
TEMP (24H TREND) 59 (-4) 76 (+6) 60 76
RH % (24H TREND) 100 (+1) 72 (-21) 100 72
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.04 0.01 0.02 0.01
PRECIP DURATION 0 1 1 1
PRECIP BEGIN 6 PM 2 PM CONTINUING CONTINUING
PRECIP END 8 PM CONTINUING CONTINUING 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 7PM 64F/9AM 7PM 65F/9AM
DISPERSION 2 3
MAX ADI EARLY 4 VERY POOR 22 FAIR 4 VERY POOR 20 GEN POOR
MAX ADI LATE 3 VERY POOR 31 FAIR 4 VERY POOR 35 FAIR
MAX LVORI EARLY 10 8 7 9
MAX LVORI LATE 9 3 9 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ511-210815-
PRESTON-
INCLUDING THE CITIES OF KINGWOOD AND BRUCETON MILLS
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 60 30 40 50
CHANCE OF THUNDER (%) 40 30 40 30
TEMP (24H TREND) 58 (-5) 78 (+7) 61 77
RH % (24H TREND) 99 (-1) 68 (-21) 100 68
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.05 0.02 0.03 0.01
PRECIP DURATION 1 1 1 2
PRECIP BEGIN 6 PM 1 PM CONTINUING CONTINUING
PRECIP END 8 PM CONTINUING CONTINUING 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 7PM 65F/9AM 7PM 66F/9AM
DISPERSION 2 3
MAX ADI EARLY 4 VERY POOR 23 FAIR 4 VERY POOR 21 FAIR
MAX ADI LATE 3 VERY POOR 32 FAIR 4 VERY POOR 34 FAIR
MAX LVORI EARLY 9 8 7 9
MAX LVORI LATE 9 3 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ512-210815-
EASTERN PRESTON-
INCLUDING THE CITIES OF TERRA ALTA, ROWLESBURG, AND HAZELTON
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 80 40 40 60
CHANCE OF THUNDER (%) 50 20 30 30
TEMP (24H TREND) 58 (-5) 76 (+5) 60 76
RH % (24H TREND) 100 (+1) 71 (-19) 100 70
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.08 0.03 0.05 0.01
PRECIP DURATION 1 1 1 4
PRECIP BEGIN 6 PM 1 PM CONTINUING CONTINUING
PRECIP END 9 PM CONTINUING CONTINUING 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 8PM 63F/9AM 7PM 65F/9AM
DISPERSION 2 3
MAX ADI EARLY 5 VERY POOR 20 GEN POOR 5 VERY POOR 19 GEN POOR
MAX ADI LATE 4 VERY POOR 34 FAIR 4 VERY POOR 34 FAIR
MAX LVORI EARLY 9 8 7 9
MAX LVORI LATE 9 3 9 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ513-210815-
WESTERN TUCKER-
INCLUDING THE CITIES OF PARSONS, HENDRICKS, AND SAINT GEORGE
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 70 60 40 50
CHANCE OF THUNDER (%) 50 40 40 30
TEMP (24H TREND) 61 (-3) 79 (+6) 62 78
RH % (24H TREND) 100 (+4) 68 (-15) 99 65
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.08 0.09 0.10 0.10
PRECIP DURATION 1 1 1 6
PRECIP BEGIN 6 PM 1 PM CONTINUING CONTINUING
PRECIP END 9 PM 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 7PM 68F/10AM 7PM 66F/9AM
DISPERSION 2 3
MAX ADI EARLY 5 VERY POOR 17 GEN POOR 4 VERY POOR 19 GEN POOR
MAX ADI LATE 3 VERY POOR 27 FAIR 4 VERY POOR 33 FAIR
MAX LVORI EARLY 9 9 8 9
MAX LVORI LATE 9 4 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ514-210815-
EASTERN TUCKER-
INCLUDING THE CITIES OF DAVIS, THOMAS, AND CANAAN VALLEY
142 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 70 60 60 70
CHANCE OF THUNDER (%) 50 30 30 30
TEMP (24H TREND) 54 (-6) 74 (+4) 56 75
RH % (24H TREND) 100 (+4) 76 (-5) 100 73
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.07 0.10 0.30 0.16
PRECIP DURATION 2 2 2 8
PRECIP BEGIN 6 PM 9 AM CONTINUING CONTINUING
PRECIP END 9 PM 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 8PM 64F/10AM 8PM 63F/9AM
DISPERSION 2 3
MAX ADI EARLY 9 POOR 16 GEN POOR 5 VERY POOR 18 GEN POOR
MAX ADI LATE 3 VERY POOR 26 FAIR 5 VERY POOR 34 FAIR
MAX LVORI EARLY 9 8 9 8
MAX LVORI LATE 9 4 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 IN THE
UPPER 50S. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE LOWER
70S. WEST WINDS 5 TO 10 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.
CL
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