809
FNUS51 KPBZ 190504
FWFPBZ
FIRE WEATHER PLANNING FORECAST
NATIONAL WEATHER SERVICE PITTSBURGH PA
104 AM EDT WED AUG 19 2026
DISCUSSION
LOW PROBABILITY SHOWERS AND THUNDERSTORMS MAY DEVELOP EARLY THIS
AFTERNOON AHEAD OF A DECAYING SURFACE COLD FRONT THAT EVENTUALLY
STALLS NEAR THE I-70 CORRIDOR. ANY PRECIPITATION IS LIKELY TO BE
LIGHT WHILE MOIST ADVECTION AHEAD OF THE BOUNDARY RISES AREA DEW
POINTS.
MORE WIDESPREAD RAIN CHANCES DEVELOP OVERNIGHT INTO THURSDAY AS
SHORTWAVE MOVEMENT ALOFT GENERATES SHOWERS FOCUSED AROUND THE
STALLED BOUNDARY. SHIFT OF THE SHORTWAVE EAST FAVORS A BRIEF
DRYING TREND THURSDAY NIGHT BEFORE THE NEXT WAVE OF RAIN ARRIVES
SATURDAY INTO SUNDAY.
OHZ039-192015-
TUSCARAWAS-
INCLUDING THE CITIES OF NEW PHILADELPHIA AND DOVER
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 40 50 50
CHANCE OF THUNDER (%) 30 20 20
TEMP (24H TREND) 78 (-1) 61 (+1) 77
RH % (24H TREND) 72 (+26) 100 (+1) 63
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 6 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.04 0.09 0.14
PRECIP DURATION 1 2 2
PRECIP BEGIN 10 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1270
MIXING HGT(FT-AGL/MSL)4160
TRANSPORT WND (MPH) W 13 N/A
VENT RATE (KT-FT) 45760
CATEGORY DAY 3
INVERSION 66F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 31 FAIR 5 VERY POOR 19 GEN POOR
MAX ADI LATE 50 GEN GOOD 3 VERY POOR 60 GEN GOOD
MAX LVORI EARLY 8 9 9
MAX LVORI LATE 3 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ040-192015-
CARROLL-
INCLUDING THE CITIES OF CARROLLTON AND MALVERN
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 40 50 50
CHANCE OF THUNDER (%) 30 20 20
TEMP (24H TREND) 78 (-1) 60 (+1) 77
RH % (24H TREND) 72 (+27) 100 (0) 63
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 7 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.01 0.06 0.12
PRECIP DURATION 1 2 2
PRECIP BEGIN 11 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1220
MIXING HGT(FT-AGL/MSL)3990
TRANSPORT WND (MPH) W 13 N/A
VENT RATE (KT-FT) 43890
CATEGORY DAY 3
INVERSION 66F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 36 FAIR 6 VERY POOR 20 GEN POOR
MAX ADI LATE 51 GEN GOOD 3 VERY POOR 52 GEN GOOD
MAX LVORI EARLY 8 8 9
MAX LVORI LATE 3 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ041-192015-
COLUMBIANA-
INCLUDING THE CITIES OF EAST LIVERPOOL, SALEM, AND COLUMBIANA
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 40 40 40
CHANCE OF THUNDER (%) 30 10 0
TEMP (24H TREND) 78 (-1) 59 (0) 77
RH % (24H TREND) 70 (+24) 100 (+1) 61
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 7 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.02 0.06 0.10
PRECIP DURATION 1 2 2
PRECIP BEGIN 1 PM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 5 PM
MIXING HGT(M-AGL/MSL) 1150
MIXING HGT(FT-AGL/MSL)3790
TRANSPORT WND (MPH) W 13 N/A
VENT RATE (KT-FT) 41690
CATEGORY DAY 3
INVERSION 67F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 39 FAIR 7 POOR 20 GEN POOR
MAX ADI LATE 51 GEN GOOD 3 VERY POOR 55 GEN GOOD
MAX LVORI EARLY 7 8 9
MAX LVORI LATE 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ048-192015-
COSHOCTON-
INCLUDING THE CITY OF COSHOCTON
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 40 60 50
CHANCE OF THUNDER (%) 30 20 20
TEMP (24H TREND) 77 (-1) 60 (+1) 77
RH % (24H TREND) 76 (+24) 100 (0) 67
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.04 0.12 0.12
PRECIP DURATION 1 3 2
PRECIP BEGIN 10 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1170
MIXING HGT(FT-AGL/MSL)3830
TRANSPORT WND (MPH) W 12 N/A
VENT RATE (KT-FT) 38300
CATEGORY DAY 3
INVERSION 66F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 27 FAIR 4 VERY POOR 17 GEN POOR
MAX ADI LATE 44 GEN GOOD 2 VERY POOR 57 GEN GOOD
MAX LVORI EARLY 9 10 9
MAX LVORI LATE 3 10 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ049-192015-
HARRISON-
INCLUDING THE CITY OF CADIZ
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 30 60 60
CHANCE OF THUNDER (%) 30 20 20
TEMP (24H TREND) 78 (-1) 61 (+1) 77
RH % (24H TREND) 70 (+25) 100 (0) 65
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 6 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.01 0.23 0.23
PRECIP DURATION 1 5 3
PRECIP BEGIN 12 PM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1260
MIXING HGT(FT-AGL/MSL)4120
TRANSPORT WND (MPH) W 13 N/A
VENT RATE (KT-FT) 45320
CATEGORY DAY 3
INVERSION 67F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 38 FAIR 6 VERY POOR 18 GEN POOR
MAX ADI LATE 51 GEN GOOD 3 VERY POOR 41 GEN GOOD
MAX LVORI EARLY 9 9 9
MAX LVORI LATE 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ050-192015-
JEFFERSON OH-
INCLUDING THE CITY OF STEUBENVILLE
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 30 60 50
CHANCE OF THUNDER (%) 30 20 20
TEMP (24H TREND) 79 (-1) 61 (+1) 77
RH % (24H TREND) 66 (+20) 100 (+1) 64
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 7 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.01 0.15 0.25
PRECIP DURATION 1 4 3
PRECIP BEGIN 1 PM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1210
MIXING HGT(FT-AGL/MSL)3980
TRANSPORT WND (MPH) W 13 N/A
VENT RATE (KT-FT) 43780
CATEGORY DAY 3
INVERSION 67F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 50 GEN GOOD 7 POOR 19 GEN POOR
MAX ADI LATE 50 GEN GOOD 3 VERY POOR 40 FAIR
MAX LVORI EARLY 8 8 9
MAX LVORI LATE 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ057-192015-
MUSKINGUM-
INCLUDING THE CITY OF ZANESVILLE
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 30 70 60
CHANCE OF THUNDER (%) 30 30 20
TEMP (24H TREND) 77 (-2) 61 (+1) 77
RH % (24H TREND) 74 (+19) 100 (0) 72
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.01 0.38 0.18
PRECIP DURATION 1 5 3
PRECIP BEGIN 1 PM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1160
MIXING HGT(FT-AGL/MSL)3800
TRANSPORT WND (MPH) W 12 N/A
VENT RATE (KT-FT) 38000
CATEGORY DAY 3
INVERSION 67F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 30 FAIR 4 VERY POOR 16 GEN POOR
MAX ADI LATE 46 GEN GOOD 2 VERY POOR 44 GEN GOOD
MAX LVORI EARLY 9 10 9
MAX LVORI LATE 4 10 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ058-192015-
GUERNSEY-
INCLUDING THE CITY OF CAMBRIDGE
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 30 60 60
CHANCE OF THUNDER (%) 30 20 20
TEMP (24H TREND) 78 (-2) 62 (+2) 77
RH % (24H TREND) 70 (+19) 100 (0) 68
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.01 0.37 0.23
PRECIP DURATION 1 5 3
PRECIP BEGIN 2 PM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1250
MIXING HGT(FT-AGL/MSL)4110
TRANSPORT WND (MPH) W 12 N/A
VENT RATE (KT-FT) 41100
CATEGORY DAY 3
INVERSION 67F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 32 FAIR 4 VERY POOR 15 GEN POOR
MAX ADI LATE 48 GEN GOOD 2 VERY POOR 43 GEN GOOD
MAX LVORI EARLY 9 10 9
MAX LVORI LATE 3 10 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ059-192015-
BELMONT-
INCLUDING THE CITIES OF MARTINS FERRY AND ST. CLAIRSVILLE
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 70 60
CHANCE OF THUNDER (%) 0 20 20
TEMP (24H TREND) 79 (-1) 62 (+2) 77
RH % (24H TREND) 68 (+18) 100 (0) 69
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 6 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.19 0.15
PRECIP DURATION 4 4
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1220
MIXING HGT(FT-AGL/MSL)4000
TRANSPORT WND (MPH) W 13 N/A
VENT RATE (KT-FT) 44000
CATEGORY DAY 3
INVERSION 68F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 45 GEN GOOD 6 VERY POOR 14 GEN POOR
MAX ADI LATE 49 GEN GOOD 2 VERY POOR 37 FAIR
MAX LVORI EARLY 9 9 9
MAX LVORI LATE 3 10 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ068-192015-
NOBLE-
INCLUDING THE CITY OF CALDWELL
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 70 70
CHANCE OF THUNDER (%) 0 20 30
TEMP (24H TREND) 79 (-1) 62 (+2) 77
RH % (24H TREND) 70 (+16) 100 (0) 74
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.19 0.21
PRECIP DURATION 4 5
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1270
MIXING HGT(FT-AGL/MSL)4170
TRANSPORT WND (MPH) W 12 N/A
VENT RATE (KT-FT) 41700
CATEGORY DAY 3
INVERSION 67F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 35 FAIR 3 VERY POOR 12 POOR
MAX ADI LATE 47 GEN GOOD 2 VERY POOR 37 FAIR
MAX LVORI EARLY 9 10 9
MAX LVORI LATE 3 10 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ069-192015-
MONROE-
INCLUDING THE CITY OF WOODSFIELD
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 70 70
CHANCE OF THUNDER (%) 0 20 30
TEMP (24H TREND) 79 (-1) 63 (+2) 77
RH % (24H TREND) 68 (+16) 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 0.14 0.25
PRECIP DURATION 3 5
PRECIP BEGIN 8 PM CONTINUING
PRECIP END CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1260
MIXING HGT(FT-AGL/MSL)4140
TRANSPORT WND (MPH) W 12 N/A
VENT RATE (KT-FT) 41400
CATEGORY DAY 3
INVERSION 68F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 39 FAIR 4 VERY POOR 11 POOR
MAX ADI LATE 51 GEN GOOD 2 VERY POOR 38 FAIR
MAX LVORI EARLY 9 10 9
MAX LVORI LATE 3 10 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ007-192015-
MERCER-
INCLUDING THE CITIES OF SHARON, HERMITAGE, AND GROVE CITY
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 30 40
CHANCE OF THUNDER (%) 30 0 0
TEMP (24H TREND) 79 (0) 57 (-2) 78
RH % (24H TREND) 68 (+18) 100 (+2) 54
WIND 20FT/EARLY(MPH) SW 5 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 8 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.03 0.13
PRECIP DURATION 1 1 2
PRECIP BEGIN 12 PM 2 AM CONTINUING
PRECIP END 6 PM CONTINUING 4 PM
MIXING HGT(M-AGL/MSL) 1180
MIXING HGT(FT-AGL/MSL)3860
TRANSPORT WND (MPH) W 14 N/A
VENT RATE (KT-FT) 46320
CATEGORY DAY 3
INVERSION 66F/9AM 7PM
DISPERSION 3
MAX ADI EARLY 40 FAIR 6 VERY POOR 20 GEN POOR
MAX ADI LATE 49 GEN GOOD 3 VERY POOR 50 GEN GOOD
MAX LVORI EARLY 7 8 9
MAX LVORI LATE 3 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ008-192015-
VENANGO-
INCLUDING THE CITIES OF OIL CITY AND FRANKLIN
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 30 40
CHANCE OF THUNDER (%) 30 0 0
TEMP (24H TREND) 78 (+1) 56 (-2) 76
RH % (24H TREND) 72 (+17) 100 (+2) 58
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 6 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.02 0.13
PRECIP DURATION 1 1 2
PRECIP BEGIN 12 PM 2 AM CONTINUING
PRECIP END 5 PM CONTINUING 4 PM
MIXING HGT(M-AGL/MSL) 1210
MIXING HGT(FT-AGL/MSL)3970
TRANSPORT WND (MPH) W 14 N/A
VENT RATE (KT-FT) 47640
CATEGORY DAY 3
INVERSION 64F/9AM 7PM
DISPERSION 3
MAX ADI EARLY 43 GEN GOOD 6 VERY POOR 17 GEN POOR
MAX ADI LATE 49 GEN GOOD 2 VERY POOR 48 GEN GOOD
MAX LVORI EARLY 7 8 9
MAX LVORI LATE 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ009-192015-
FOREST-
INCLUDING THE CITY OF TIONESTA
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 20 40
CHANCE OF THUNDER (%) 30 0 0
TEMP (24H TREND) 78 (+1) 55 (-1) 76
RH % (24H TREND) 67 (+15) 100 (+2) 54
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.02 0.01 0.16
PRECIP DURATION 1 0 2
PRECIP BEGIN 12 PM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 5 PM
MIXING HGT(M-AGL/MSL) 1230
MIXING HGT(FT-AGL/MSL)4040
TRANSPORT WND (MPH) W 14 N/A
VENT RATE (KT-FT) 48480
CATEGORY DAY 3
INVERSION 64F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 47 GEN GOOD 7 POOR 17 GEN POOR
MAX ADI LATE 51 GEN GOOD 2 VERY POOR 39 FAIR
MAX LVORI EARLY 7 8 9
MAX LVORI LATE 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ013-192015-
LAWRENCE-
INCLUDING THE CITIES OF NEW CASTLE AND ELLWOOD CITY
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 40 40
CHANCE OF THUNDER (%) 30 0 0
TEMP (24H TREND) 80 (0) 58 (0) 78
RH % (24H TREND) 67 (+18) 100 (+1) 58
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 7 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.02 0.08 0.13
PRECIP DURATION 1 1 2
PRECIP BEGIN 1 PM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 5 PM
MIXING HGT(M-AGL/MSL) 1170
MIXING HGT(FT-AGL/MSL)3830
TRANSPORT WND (MPH) W 14 N/A
VENT RATE (KT-FT) 45960
CATEGORY DAY 3
INVERSION 67F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 40 FAIR 6 VERY POOR 19 GEN POOR
MAX ADI LATE 51 GEN GOOD 3 VERY POOR 56 GEN GOOD
MAX LVORI EARLY 8 8 9
MAX LVORI LATE 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ014-192015-
BUTLER-
INCLUDING THE CITY OF BUTLER
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 30 30 50
CHANCE OF THUNDER (%) 30 20 0
TEMP (24H TREND) 79 (0) 58 (0) 77
RH % (24H TREND) 69 (+14) 100 (+1) 63
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 7 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.02 0.05 0.19
PRECIP DURATION 1 1 2
PRECIP BEGIN 1 PM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1310
MIXING HGT(FT-AGL/MSL)4300
TRANSPORT WND (MPH) W 14 N/A
VENT RATE (KT-FT) 51600
CATEGORY DAY 3
INVERSION 66F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 59 GEN GOOD 7 POOR 16 GEN POOR
MAX ADI LATE 53 GEN GOOD 3 VERY POOR 40 FAIR
MAX LVORI EARLY 8 9 9
MAX LVORI LATE 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ015-192015-
CLARION-
INCLUDING THE CITY OF CLARION
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 30 50
CHANCE OF THUNDER (%) 30 0 0
TEMP (24H TREND) 78 (+1) 57 (-1) 76
RH % (24H TREND) 68 (+13) 100 (+1) 57
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 6 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.01 0.16
PRECIP DURATION 1 1 2
PRECIP BEGIN 1 PM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1230
MIXING HGT(FT-AGL/MSL)4030
TRANSPORT WND (MPH) W 14 N/A
VENT RATE (KT-FT) 48360
CATEGORY DAY 3
INVERSION 64F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 58 GEN GOOD 7 POOR 15 GEN POOR
MAX ADI LATE 54 GEN GOOD 3 VERY POOR 38 FAIR
MAX LVORI EARLY 7 8 9
MAX LVORI LATE 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ016-192015-
JEFFERSON PA-
INCLUDING THE CITIES OF PUNXSUTAWNEY AND BROOKVILLE
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 30 60
CHANCE OF THUNDER (%) 30 0 0
TEMP (24H TREND) 77 (+1) 57 (0) 75
RH % (24H TREND) 67 (+12) 100 (+2) 59
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 7 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.01 0.21
PRECIP DURATION 1 1 3
PRECIP BEGIN 2 PM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1190
MIXING HGT(FT-AGL/MSL)3900
TRANSPORT WND (MPH) W 14 N/A
VENT RATE (KT-FT) 46800
CATEGORY DAY 3
INVERSION 64F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 55 GEN GOOD 8 POOR 17 GEN POOR
MAX ADI LATE 56 GEN GOOD 3 VERY POOR 39 FAIR
MAX LVORI EARLY 7 7 9
MAX LVORI LATE 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ020-192015-
BEAVER-
INCLUDING THE CITIES OF ALIQUIPPA, BEAVER FALLS, AMBRIDGE,
AND MONACA
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 40 40 50
CHANCE OF THUNDER (%) 40 20 20
TEMP (24H TREND) 79 (-1) 60 (0) 78
RH % (24H TREND) 67 (+22) 100 (+3) 62
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 7 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.02 0.08 0.21
PRECIP DURATION 1 2 2
PRECIP BEGIN 1 PM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1250
MIXING HGT(FT-AGL/MSL)4100
TRANSPORT WND (MPH) W 13 N/A
VENT RATE (KT-FT) 45100
CATEGORY DAY 3
INVERSION 67F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 53 GEN GOOD 7 POOR 20 GEN POOR
MAX ADI LATE 51 GEN GOOD 3 VERY POOR 45 GEN GOOD
MAX LVORI EARLY 7 7 9
MAX LVORI LATE 3 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ021-192015-
ALLEGHENY-
INCLUDING THE CITY OF PITTSBURGH METRO AREA
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 20 60 60
CHANCE OF THUNDER (%) 20 20 20
TEMP (24H TREND) 80 (0) 62 (+1) 78
RH % (24H TREND) 65 (+18) 100 (+4) 65
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 9 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.01 0.08 0.23
PRECIP DURATION 0 3 5
PRECIP BEGIN 2 PM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1410
MIXING HGT(FT-AGL/MSL)4620
TRANSPORT WND (MPH) W 14 N/A
VENT RATE (KT-FT) 55440
CATEGORY DAY 4
INVERSION 67F/9AM 8PM
DISPERSION 4
MAX ADI EARLY 57 GEN GOOD 15 GEN POOR 19 GEN POOR
MAX ADI LATE 53 GEN GOOD 2 VERY POOR 38 FAIR
MAX LVORI EARLY 7 7 9
MAX LVORI LATE 3 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ022-192015-
ARMSTRONG-
INCLUDING THE CITIES OF KITTANNING AND FORD CITY
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 30 30 60
CHANCE OF THUNDER (%) 30 20 20
TEMP (24H TREND) 81 (+2) 59 (+1) 78
RH % (24H TREND) 67 (+10) 100 (+1) 64
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 7 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.02 0.03 0.20
PRECIP DURATION 1 1 3
PRECIP BEGIN 2 PM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1340
MIXING HGT(FT-AGL/MSL)4390
TRANSPORT WND (MPH) W 15 N/A
VENT RATE (KT-FT) 57070
CATEGORY DAY 4
INVERSION 65F/9AM 8PM
DISPERSION 4
MAX ADI EARLY 56 GEN GOOD 7 POOR 17 GEN POOR
MAX ADI LATE 60 GEN GOOD 3 VERY POOR 34 FAIR
MAX LVORI EARLY 8 9 9
MAX LVORI LATE 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ029-192015-
WASHINGTON-
INCLUDING THE CITIES OF WASHINGTON AND CANONSBURG
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 70 70
CHANCE OF THUNDER (%) 0 20 30
TEMP (24H TREND) 79 (+1) 62 (+2) 76
RH % (24H TREND) 67 (+17) 100 (+3) 68
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 8 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.10 0.24
PRECIP DURATION 4 7
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1180
MIXING HGT(FT-AGL/MSL)3860
TRANSPORT WND (MPH) W 13 N/A
VENT RATE (KT-FT) 42460
CATEGORY DAY 3
INVERSION 67F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 53 GEN GOOD 9 POOR 17 GEN POOR
MAX ADI LATE 54 GEN GOOD 2 VERY POOR 33 FAIR
MAX LVORI EARLY 7 7 9
MAX LVORI LATE 3 10 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ031-192015-
GREENE-
INCLUDING THE CITY OF WAYNESBURG
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 70 60
CHANCE OF THUNDER (%) 0 20 30
TEMP (24H TREND) 79 (+1) 63 (+3) 75
RH % (24H TREND) 65 (+3) 100 (0) 77
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 6 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.08 0.48
PRECIP DURATION 3 7
PRECIP BEGIN 9 PM CONTINUING
PRECIP END CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1240
MIXING HGT(FT-AGL/MSL)4070
TRANSPORT WND (MPH) W 13 N/A
VENT RATE (KT-FT) 44770
CATEGORY DAY 3
INVERSION 67F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 48 GEN GOOD 7 POOR 13 GEN POOR
MAX ADI LATE 63 GOOD 2 VERY POOR 29 FAIR
MAX LVORI EARLY 8 7 9
MAX LVORI LATE 3 10 5
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ073-192015-
WESTMORELAND-
INCLUDING THE CITIES OF MURRYSVILLE, GREENSBURG, NEW KENSINGTON,
LOWER BURRELL, LATROBE, AND MONESSEN
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 60 60
CHANCE OF THUNDER (%) 0 20 30
TEMP (24H TREND) 80 (+1) 61 (+2) 77
RH % (24H TREND) 66 (+12) 100 (+2) 69
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 9 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.07 0.29
PRECIP DURATION 2 7
PRECIP BEGIN 8 PM CONTINUING
PRECIP END CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1310
MIXING HGT(FT-AGL/MSL)4290
TRANSPORT WND (MPH) W 14 N/A
VENT RATE (KT-FT) 51480
CATEGORY DAY 3
INVERSION 67F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 46 GEN GOOD 14 GEN POOR 16 GEN POOR
MAX ADI LATE 55 GEN GOOD 2 VERY POOR 32 FAIR
MAX LVORI EARLY 8 9 9
MAX LVORI LATE 3 10 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ074-192015-
HIGHER ELEVATIONS OF WESTMORELAND-
INCLUDING THE CITIES OF LIGONIER AND DONEGAL
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 60 70
CHANCE OF THUNDER (%) 0 20 30
TEMP (24H TREND) 80 (+4) 60 (+2) 77
RH % (24H TREND) 61 (+2) 100 (+5) 69
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 7 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.06 0.43
PRECIP DURATION 2 7
PRECIP BEGIN 8 PM CONTINUING
PRECIP END CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1200
MIXING HGT(FT-AGL/MSL)3940
TRANSPORT WND (MPH) W 14 N/A
VENT RATE (KT-FT) 47280
CATEGORY DAY 3
INVERSION 65F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 49 GEN GOOD 8 POOR 14 GEN POOR
MAX ADI LATE 66 GOOD 3 VERY POOR 33 FAIR
MAX LVORI EARLY 6 8 9
MAX LVORI LATE 3 10 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ075-192015-
FAYETTE-
INCLUDING THE CITY OF UNIONTOWN
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 70 60
CHANCE OF THUNDER (%) 0 20 30
TEMP (24H TREND) 79 (0) 63 (+3) 76
RH % (24H TREND) 65 (+9) 100 (+3) 75
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 7 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.06 0.48
PRECIP DURATION 3 7
PRECIP BEGIN 8 PM CONTINUING
PRECIP END CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1210
MIXING HGT(FT-AGL/MSL)3980
TRANSPORT WND (MPH) SW 13 N/A
VENT RATE (KT-FT) 43780
CATEGORY DAY 3
INVERSION 67F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 44 GEN GOOD 7 POOR 14 GEN POOR
MAX ADI LATE 65 GOOD 2 VERY POOR 28 FAIR
MAX LVORI EARLY 7 7 9
MAX LVORI LATE 3 10 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ076-192015-
HIGHER ELEVATIONS OF FAYETTE-
INCLUDING THE CITIES OF CHAMPION AND OHIOPYLE
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 60 70
CHANCE OF THUNDER (%) 0 20 40
TEMP (24H TREND) 79 (+4) 60 (+2) 75
RH % (24H TREND) 61 (+1) 100 (+3) 72
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.03 0.47
PRECIP DURATION 2 7
PRECIP BEGIN 9 PM CONTINUING
PRECIP END CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1210
MIXING HGT(FT-AGL/MSL)3980
TRANSPORT WND (MPH) W 13 N/A
VENT RATE (KT-FT) 43780
CATEGORY DAY 3
INVERSION 65F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 47 GEN GOOD 7 POOR 12 POOR
MAX ADI LATE 62 GOOD 3 VERY POOR 27 FAIR
MAX LVORI EARLY 7 8 9
MAX LVORI LATE 3 10 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ077-192015-
INDIANA-
INCLUDING THE CITY OF INDIANA
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 20 30 60
CHANCE OF THUNDER (%) 20 20 20
TEMP (24H TREND) 79 (+2) 60 (+2) 77
RH % (24H TREND) 67 (+8) 100 (+2) 67
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 7 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.02 0.19
PRECIP DURATION 0 2 3
PRECIP BEGIN 3 PM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1300
MIXING HGT(FT-AGL/MSL)4260
TRANSPORT WND (MPH) W 15 N/A
VENT RATE (KT-FT) 55380
CATEGORY DAY 4
INVERSION 65F/9AM 8PM
DISPERSION 4
MAX ADI EARLY 48 GEN GOOD 8 POOR 17 GEN POOR
MAX ADI LATE 71 GOOD 2 VERY POOR 35 FAIR
MAX LVORI EARLY 7 9 9
MAX LVORI LATE 3 10 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ078-192015-
HIGHER ELEVATIONS OF INDIANA-
INCLUDING THE CITY OF ARMAGH
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 20 40 70
CHANCE OF THUNDER (%) 20 20 20
TEMP (24H TREND) 79 (+3) 60 (+2) 76
RH % (24H TREND) 65 (+5) 100 (+4) 69
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 7 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.01 0.28
PRECIP DURATION 0 2 5
PRECIP BEGIN 4 PM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1290
MIXING HGT(FT-AGL/MSL)4230
TRANSPORT WND (MPH) W 15 N/A
VENT RATE (KT-FT) 54990
CATEGORY DAY 4
INVERSION 65F/9AM 8PM
DISPERSION 4
MAX ADI EARLY 46 GEN GOOD 8 POOR 15 GEN POOR
MAX ADI LATE 64 GOOD 2 VERY POOR 32 FAIR
MAX LVORI EARLY 6 8 9
MAX LVORI LATE 3 10 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ001-192015-
HANCOCK-
INCLUDING THE CITY OF WEIRTON
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 40 50 50
CHANCE OF THUNDER (%) 40 20 20
TEMP (24H TREND) 78 (-2) 61 (+1) 77
RH % (24H TREND) 67 (+21) 100 (+2) 63
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 6 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.03 0.12 0.22
PRECIP DURATION 1 2 2
PRECIP BEGIN 1 PM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1230
MIXING HGT(FT-AGL/MSL)4050
TRANSPORT WND (MPH) W 13 N/A
VENT RATE (KT-FT) 44550
CATEGORY DAY 3
INVERSION 67F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 44 GEN GOOD 7 POOR 20 GEN POOR
MAX ADI LATE 50 GEN GOOD 3 VERY POOR 42 GEN GOOD
MAX LVORI EARLY 7 7 9
MAX LVORI LATE 3 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ002-192015-
BROOKE-
INCLUDING THE CITIES OF FOLLANSBEE AND WELLSBURG
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 20 70 60
CHANCE OF THUNDER (%) 20 20 20
TEMP (24H TREND) 79 (0) 62 (+2) 77
RH % (24H TREND) 67 (+22) 100 (+2) 65
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 7 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.01 0.09 0.24
PRECIP DURATION 0 4 3
PRECIP BEGIN 2 PM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1170
MIXING HGT(FT-AGL/MSL)3850
TRANSPORT WND (MPH) W 13 N/A
VENT RATE (KT-FT) 42350
CATEGORY DAY 3
INVERSION 67F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 52 GEN GOOD 7 POOR 19 GEN POOR
MAX ADI LATE 58 GEN GOOD 2 VERY POOR 37 FAIR
MAX LVORI EARLY 9 7 9
MAX LVORI LATE 3 10 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ003-192015-
OHIO-
INCLUDING THE CITY OF WHEELING
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 70 60
CHANCE OF THUNDER (%) 0 20 20
TEMP (24H TREND) 79 (-1) 62 (+2) 77
RH % (24H TREND) 68 (+20) 100 (0) 71
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 7 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.10 0.21
PRECIP DURATION 4 5
PRECIP BEGIN 7 PM CONTINUING
PRECIP END CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1170
MIXING HGT(FT-AGL/MSL)3850
TRANSPORT WND (MPH) W 13 N/A
VENT RATE (KT-FT) 42350
CATEGORY DAY 3
INVERSION 67F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 46 GEN GOOD 6 VERY POOR 16 GEN POOR
MAX ADI LATE 53 GEN GOOD 2 VERY POOR 39 FAIR
MAX LVORI EARLY 9 8 9
MAX LVORI LATE 3 10 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ004-192015-
MARSHALL-
INCLUDING THE CITY OF MOUNDSVILLE
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 70 60
CHANCE OF THUNDER (%) 0 20 30
TEMP (24H TREND) 80 (+1) 63 (+2) 77
RH % (24H TREND) 69 (+10) 100 (0) 77
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 6 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.11 0.33
PRECIP DURATION 4 5
PRECIP BEGIN 9 PM CONTINUING
PRECIP END CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1230
MIXING HGT(FT-AGL/MSL)4020
TRANSPORT WND (MPH) W 12 N/A
VENT RATE (KT-FT) 40200
CATEGORY DAY 3
INVERSION 67F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 46 GEN GOOD 6 VERY POOR 11 POOR
MAX ADI LATE 55 GEN GOOD 2 VERY POOR 38 FAIR
MAX LVORI EARLY 9 8 9
MAX LVORI LATE 3 10 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ012-192015-
WETZEL-
INCLUDING THE CITY OF NEW MARTINSVILLE
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 70 60
CHANCE OF THUNDER (%) 0 20 30
TEMP (24H TREND) 78 (0) 63 (+1) 75
RH % (24H TREND) 70 (+8) 100 (0) 82
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.08 0.47
PRECIP DURATION 4 6
PRECIP BEGIN 9 PM CONTINUING
PRECIP END CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1200
MIXING HGT(FT-AGL/MSL)3950
TRANSPORT WND (MPH) W 12 N/A
VENT RATE (KT-FT) 39500
CATEGORY DAY 3
INVERSION 67F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 42 GEN GOOD 5 VERY POOR 10 POOR
MAX ADI LATE 61 GOOD 2 VERY POOR 27 FAIR
MAX LVORI EARLY 9 8 9
MAX LVORI LATE 3 10 5
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ021-192015-
MARION-
INCLUDING THE CITY OF FAIRMONT
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 60 70
CHANCE OF THUNDER (%) 0 20 40
TEMP (24H TREND) 79 (+1) 63 (+3) 75
RH % (24H TREND) 68 (+5) 100 (0) 84
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.06 0.50
PRECIP DURATION 2 5
PRECIP BEGIN 10 PM CONTINUING
PRECIP END CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1320
MIXING HGT(FT-AGL/MSL)4320
TRANSPORT WND (MPH) W 12 N/A
VENT RATE (KT-FT) 43200
CATEGORY DAY 3
INVERSION 66F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 43 GEN GOOD 5 VERY POOR 10 POOR
MAX ADI LATE 64 GOOD 2 VERY POOR 20 GEN POOR
MAX LVORI EARLY 9 8 9
MAX LVORI LATE 3 10 5
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ509-192015-
MONONGALIA-
INCLUDING THE CITY OF MORGANTOWN
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 70 70
CHANCE OF THUNDER (%) 0 20 40
TEMP (24H TREND) 79 (+1) 63 (+3) 75
RH % (24H TREND) 66 (+3) 100 (+1) 81
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 6 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.05 0.51
PRECIP DURATION 2 6
PRECIP BEGIN 10 PM CONTINUING
PRECIP END CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1320
MIXING HGT(FT-AGL/MSL)4320
TRANSPORT WND (MPH) W 12 N/A
VENT RATE (KT-FT) 43200
CATEGORY DAY 3
INVERSION 67F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 48 GEN GOOD 6 VERY POOR 12 POOR
MAX ADI LATE 67 GOOD 2 VERY POOR 22 FAIR
MAX LVORI EARLY 9 7 9
MAX LVORI LATE 3 10 5
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ510-192015-
RIDGES OF EASTERN MONONGALIA AND NORTHWESTERN PRESTON-
INCLUDING THE CITY OF COOPERS ROCK
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 60 80
CHANCE OF THUNDER (%) 0 20 40
TEMP (24H TREND) 78 (+4) 62 (+3) 74
RH % (24H TREND) 67 (+4) 100 (+3) 81
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.06 0.45
PRECIP DURATION 2 7
PRECIP BEGIN 10 PM CONTINUING
PRECIP END CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1290
MIXING HGT(FT-AGL/MSL)4230
TRANSPORT WND (MPH) W 12 N/A
VENT RATE (KT-FT) 42300
CATEGORY DAY 3
INVERSION 65F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 41 GEN GOOD 6 VERY POOR 13 GEN POOR
MAX ADI LATE 63 GOOD 2 VERY POOR 21 FAIR
MAX LVORI EARLY 7 7 9
MAX LVORI LATE 3 10 5
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ511-192015-
PRESTON-
INCLUDING THE CITIES OF KINGWOOD AND BRUCETON MILLS
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 60 70
CHANCE OF THUNDER (%) 0 20 40
TEMP (24H TREND) 78 (+2) 62 (+3) 76
RH % (24H TREND) 63 (+2) 99 (+1) 77
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.05 0.38
PRECIP DURATION 1 6
PRECIP BEGIN 10 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1300
MIXING HGT(FT-AGL/MSL)4270
TRANSPORT WND (MPH) W 13 N/A
VENT RATE (KT-FT) 46970
CATEGORY DAY 3
INVERSION 66F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 47 GEN GOOD 7 POOR 17 GEN POOR
MAX ADI LATE 62 GOOD 2 VERY POOR 22 FAIR
MAX LVORI EARLY 8 7 9
MAX LVORI LATE 2 9 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ512-192015-
EASTERN PRESTON-
INCLUDING THE CITIES OF TERRA ALTA, ROWLESBURG, AND HAZELTON
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 50 70
CHANCE OF THUNDER (%) 0 20 40
TEMP (24H TREND) 77 (+2) 60 (+1) 74
RH % (24H TREND) 64 (-1) 100 (+3) 79
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.05 0.43
PRECIP DURATION 1 7
PRECIP BEGIN 10 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1270
MIXING HGT(FT-AGL/MSL)4170
TRANSPORT WND (MPH) W 13 N/A
VENT RATE (KT-FT) 45870
CATEGORY DAY 3
INVERSION 64F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 52 GEN GOOD 8 POOR 19 GEN POOR
MAX ADI LATE 63 GOOD 3 VERY POOR 27 FAIR
MAX LVORI EARLY 7 8 9
MAX LVORI LATE 3 9 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ513-192015-
WESTERN TUCKER-
INCLUDING THE CITIES OF PARSONS, HENDRICKS, AND SAINT GEORGE
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 50 60
CHANCE OF THUNDER (%) 0 20 40
TEMP (24H TREND) 79 (+3) 63 (+2) 76
RH % (24H TREND) 60 (-3) 98 (+1) 76
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.04 0.60
PRECIP DURATION 1 6
PRECIP BEGIN 12 AM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1260
MIXING HGT(FT-AGL/MSL)4140
TRANSPORT WND (MPH) W 12 N/A
VENT RATE (KT-FT) 41400
CATEGORY DAY 3
INVERSION 65F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 47 GEN GOOD 5 VERY POOR 22 FAIR
MAX ADI LATE 61 GOOD 3 VERY POOR 27 FAIR
MAX LVORI EARLY 6 7 8
MAX LVORI LATE 2 8 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ514-192015-
EASTERN TUCKER-
INCLUDING THE CITIES OF DAVIS, THOMAS, AND CANAAN VALLEY
104 AM EDT WED AUG 19 2026
TODAY TONIGHT THU
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 40 60
CHANCE OF THUNDER (%) 0 20 40
TEMP (24H TREND) 75 (+2) 57 (+1) 72
RH % (24H TREND) 64 (-3) 100 (+3) 84
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.03 0.46
PRECIP DURATION 1 7
PRECIP BEGIN 12 AM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1260
MIXING HGT(FT-AGL/MSL)4130
TRANSPORT WND (MPH) W 14 N/A
VENT RATE (KT-FT) 49560
CATEGORY DAY 3
INVERSION 63F/9AM 8PM
DISPERSION 3
MAX ADI EARLY 45 GEN GOOD 8 POOR 27 FAIR
MAX ADI LATE 60 GEN GOOD 3 VERY POOR 37 FAIR
MAX LVORI EARLY 7 7 7
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
FRIDAY
MOSTLY CLEAR. PATCHY FOG THROUGH THE NIGHT. LOWS IN THE
UPPER 50S. HIGHS IN THE UPPER 70S. LIGHT WINDS.
SATURDAY
PARTLY CLOUDY. SHOWERS LIKELY AND A CHANCE OF
THUNDERSTORMS. LOWS AROUND 60. HIGHS IN THE UPPER 70S. SOUTHWEST
WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY CLOUDY. SHOWERS LIKELY AND A CHANCE OF
THUNDERSTORMS. LOWS AROUND 60. HIGHS IN THE MID 70S. WEST WINDS
5 TO 10 MPH.
MONDAY
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE MID
70S. WEST WINDS 5 TO 10 MPH.
TUESDAY
PARTLY CLOUDY. LOWS IN THE UPPER 50S. HIGHS IN THE
UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
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