113
FNUS51 KPBZ 210412
FWFPBZ
FIRE WEATHER PLANNING FORECAST
NATIONAL WEATHER SERVICE PITTSBURGH PA
1212 AM EDT TUE JUL 21 2026
DISCUSSION
FIRE WEATHER POTENTIAL REMAINS LOW TODAY WITH SHOWERS AND
THUNDERSTORMS DEVELOPING WITH A PASSING DISTURBANCE TODAY. MINRH
VALUES WILL REMAIN ABOVE 70 PERCENT. THE BEST CHANCE OF PASSING
SEVERE STORMS IS BETWEEN 12PM AND 8PM.
DRIER CONDITIONS ARE EXPECTED TOMORROW INTO THURSDAY WITH
BUILDING HIGH PRESSURE.
FORECASTER: HEFFERAN
OHZ039-212015-
TUSCARAWAS-
INCLUDING THE CITIES OF NEW PHILADELPHIA AND DOVER
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 50 0
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 80 (-1) 61 (-2) 73
RH % (24H TREND) 77 (+27) 100 (+12) 57
WIND 20FT/EARLY(MPH) SW 8 G19 SW 6 G18 NW 7
WIND 20FT/LATE(MPH) SW 11 G22 LGT/VAR NW 8
PRECIP AMOUNT 0.45 0.05 0.00
PRECIP DURATION 3 1
PRECIP BEGIN 8 AM CONTINUING
PRECIP END CONTINUING 11 PM
MIXING HGT(M-AGL/MSL) 990 1520
MIXING HGT(FT-AGL/MSL)3240 4980
TRANSPORT WND (MPH) SW 22 NW 13
VENT RATE (KT-FT) 61560 54780
CATEGORY DAY 4 4
INVERSION 72F/9AM 8PM 62F/8AM
DISPERSION 4 4
MAX ADI EARLY 38 FAIR 24 FAIR 48 GEN GOOD
MAX ADI LATE 55 GEN GOOD 7 POOR 70 GOOD
MAX LVORI EARLY 5 7 7
MAX LVORI LATE 4 9 2
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
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 50 0
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 80 (+1) 60 (-2) 72
RH % (24H TREND) 77 (+30) 100 (+15) 56
WIND 20FT/EARLY(MPH) SW 9 G19 SW 7 G19 NW 8
WIND 20FT/LATE(MPH) SW 12 G22 W 5 NW 9
PRECIP AMOUNT 0.42 0.05 0.00
PRECIP DURATION 2 1
PRECIP BEGIN 8 AM CONTINUING
PRECIP END CONTINUING 1 AM
MIXING HGT(M-AGL/MSL) 1110 1550
MIXING HGT(FT-AGL/MSL)3640 5100
TRANSPORT WND (MPH) SW 24 NW 13
VENT RATE (KT-FT) 76440 56100
CATEGORY DAY 4 4
INVERSION 72F/9AM 8PM 61F/7AM
DISPERSION 4 4
MAX ADI EARLY 39 FAIR 23 FAIR 48 GEN GOOD
MAX ADI LATE 62 GOOD 8 POOR 68 GOOD
MAX LVORI EARLY 4 6 7
MAX LVORI LATE 4 9 2
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
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 50 0
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 80 (+1) 60 (-1) 72
RH % (24H TREND) 76 (+31) 100 (+16) 57
WIND 20FT/EARLY(MPH) SW 8 G20 SW 7 G18 NW 7
WIND 20FT/LATE(MPH) SW 12 G22 NW 5 NW 9
PRECIP AMOUNT 0.47 0.13 0.00
PRECIP DURATION 2 1
PRECIP BEGIN 8 AM CONTINUING
PRECIP END CONTINUING 1 AM
MIXING HGT(M-AGL/MSL) 1140 1470
MIXING HGT(FT-AGL/MSL)3750 4810
TRANSPORT WND (MPH) SW 24 NW 14
VENT RATE (KT-FT) 78750 57720
CATEGORY DAY 4 4
INVERSION 72F/9AM 9PM 61F/7AM
DISPERSION 4 4
MAX ADI EARLY 39 FAIR 22 FAIR 49 GEN GOOD
MAX ADI LATE 65 GOOD 8 POOR 65 GOOD
MAX LVORI EARLY 4 6 6
MAX LVORI LATE 4 8 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ048-212015-
COSHOCTON-
INCLUDING THE CITY OF COSHOCTON
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 50 0
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 80 (0) 60 (-3) 73
RH % (24H TREND) 81 (+28) 100 (+10) 57
WIND 20FT/EARLY(MPH) SW 6 G17 W 6 G17 NW 6
WIND 20FT/LATE(MPH) SW 9 G20 LGT/VAR NW 7
PRECIP AMOUNT 0.50 0.07 0.00
PRECIP DURATION 3 0
PRECIP BEGIN 8 AM CONTINUING
PRECIP END CONTINUING 11 PM
MIXING HGT(M-AGL/MSL) 870 1650
MIXING HGT(FT-AGL/MSL)2850 5400
TRANSPORT WND (MPH) SW 20 NW 13
VENT RATE (KT-FT) 48450 59400
CATEGORY DAY 3 4
INVERSION 73F/9AM 8PM 62F/8AM
DISPERSION 3 4
MAX ADI EARLY 41 GEN GOOD 22 FAIR 47 GEN GOOD
MAX ADI LATE 46 GEN GOOD 8 POOR 71 GOOD
MAX LVORI EARLY 5 8 7
MAX LVORI LATE 4 9 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ049-212015-
HARRISON-
INCLUDING THE CITY OF CADIZ
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 60 0
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 80 (-1) 61 (-1) 74
RH % (24H TREND) 80 (+34) 100 (+13) 55
WIND 20FT/EARLY(MPH) SW 8 G18 SW 7 G20 NW 7
WIND 20FT/LATE(MPH) SW 11 G23 LGT/VAR NW 8
PRECIP AMOUNT 0.47 0.06 0.00
PRECIP DURATION 2 1
PRECIP BEGIN 8 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 960 1590
MIXING HGT(FT-AGL/MSL)3160 5230
TRANSPORT WND (MPH) SW 23 NW 13
VENT RATE (KT-FT) 63200 57530
CATEGORY DAY 4 4
INVERSION 73F/9AM 8PM 63F/8AM
DISPERSION 4 4
MAX ADI EARLY 46 GEN GOOD 21 FAIR 51 GEN GOOD
MAX ADI LATE 54 GEN GOOD 6 VERY POOR 74 GOOD
MAX LVORI EARLY 5 8 8
MAX LVORI LATE 4 9 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ050-212015-
JEFFERSON OH-
INCLUDING THE CITY OF STEUBENVILLE
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 60 0
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 80 (-1) 61 (-1) 75
RH % (24H TREND) 77 (+34) 100 (+14) 54
WIND 20FT/EARLY(MPH) SW 8 G18 SW 7 G20 NW 7
WIND 20FT/LATE(MPH) SW 11 G23 W 5 NW 8
PRECIP AMOUNT 0.47 0.08 0.00
PRECIP DURATION 2 1
PRECIP BEGIN 8 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 950 1710
MIXING HGT(FT-AGL/MSL)3120 5610
TRANSPORT WND (MPH) SW 20 W 13
VENT RATE (KT-FT) 53040 61710
CATEGORY DAY 4 4
INVERSION 73F/9AM 8PM 63F/8AM
DISPERSION 4 4
MAX ADI EARLY 43 GEN GOOD 21 FAIR 56 GEN GOOD
MAX ADI LATE 53 GEN GOOD 7 POOR 80 GOOD
MAX LVORI EARLY 5 7 8
MAX LVORI LATE 4 9 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ057-212015-
MUSKINGUM-
INCLUDING THE CITY OF ZANESVILLE
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 100 60 0
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 81 (-1) 61 (-3) 75
RH % (24H TREND) 81 (+29) 100 (+11) 56
WIND 20FT/EARLY(MPH) SW 6 G17 W 5 G17 NW 5
WIND 20FT/LATE(MPH) SW 9 G21 LGT/VAR NW 6
PRECIP AMOUNT 0.68 0.10 0.00
PRECIP DURATION 3 1
PRECIP BEGIN 8 AM CONTINUING
PRECIP END CONTINUING 12 AM
MIXING HGT(M-AGL/MSL) 850 1690
MIXING HGT(FT-AGL/MSL)2790 5530
TRANSPORT WND (MPH) SW 18 NW 12
VENT RATE (KT-FT) 44640 55300
CATEGORY DAY 3 4
INVERSION 74F/9AM 8PM 64F/8AM
DISPERSION 3 4
MAX ADI EARLY 41 GEN GOOD 20 GEN POOR 37 FAIR
MAX ADI LATE 44 GEN GOOD 5 VERY POOR 70 GOOD
MAX LVORI EARLY 5 8 8
MAX LVORI LATE 4 9 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ058-212015-
GUERNSEY-
INCLUDING THE CITY OF CAMBRIDGE
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 100 70 0
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 81 (-1) 62 (-1) 75
RH % (24H TREND) 81 (+32) 100 (+9) 57
WIND 20FT/EARLY(MPH) SW 7 G17 SW 5 G19 NW 5
WIND 20FT/LATE(MPH) SW 10 G21 LGT/VAR NW 7
PRECIP AMOUNT 0.62 0.10 0.00
PRECIP DURATION 2 1
PRECIP BEGIN 8 AM CONTINUING
PRECIP END CONTINUING 1 AM
MIXING HGT(M-AGL/MSL) 970 1660
MIXING HGT(FT-AGL/MSL)3170 5430
TRANSPORT WND (MPH) SW 22 NW 12
VENT RATE (KT-FT) 60230 54300
CATEGORY DAY 4 4
INVERSION 74F/9AM 8PM 64F/8AM
DISPERSION 4 4
MAX ADI EARLY 45 GEN GOOD 20 GEN POOR 39 FAIR
MAX ADI LATE 51 GEN GOOD 5 VERY POOR 70 GOOD
MAX LVORI EARLY 5 9 8
MAX LVORI LATE 4 9 2
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
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 90 0
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 81 (-2) 63 (0) 76
RH % (24H TREND) 78 (+31) 100 (+10) 56
WIND 20FT/EARLY(MPH) SW 8 G18 SW 7 G21 NW 6
WIND 20FT/LATE(MPH) SW 11 G23 LGT/VAR NW 8
PRECIP AMOUNT 0.50 0.15 0.00
PRECIP DURATION 2 1
PRECIP BEGIN 9 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 870 1560
MIXING HGT(FT-AGL/MSL)2840 5110
TRANSPORT WND (MPH) SW 21 W 13
VENT RATE (KT-FT) 51120 56210
CATEGORY DAY 3 4
INVERSION 75F/9AM 8PM 65F/8AM
DISPERSION 3 4
MAX ADI EARLY 48 GEN GOOD 22 FAIR 45 GEN GOOD
MAX ADI LATE 49 GEN GOOD 8 POOR 72 GOOD
MAX LVORI EARLY 5 8 8
MAX LVORI LATE 4 9 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ068-212015-
NOBLE-
INCLUDING THE CITY OF CALDWELL
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 90 0
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 81 (-2) 63 (-1) 76
RH % (24H TREND) 80 (+30) 100 (+7) 57
WIND 20FT/EARLY(MPH) SW 6 SW 5 G19 NW 5
WIND 20FT/LATE(MPH) SW 9 G21 LGT/VAR NW 7
PRECIP AMOUNT 0.58 0.17 0.00
PRECIP DURATION 2 1
PRECIP BEGIN 9 AM CONTINUING
PRECIP END CONTINUING 1 AM
MIXING HGT(M-AGL/MSL) 780 1660
MIXING HGT(FT-AGL/MSL)2570 5450
TRANSPORT WND (MPH) W 15 W 12
VENT RATE (KT-FT) 33410 54500
CATEGORY DAY 3 4
INVERSION 75F/9AM 8PM 65F/8AM
DISPERSION 3 4
MAX ADI EARLY 42 GEN GOOD 18 GEN POOR 35 FAIR
MAX ADI LATE 41 GEN GOOD 5 VERY POOR 70 GOOD
MAX LVORI EARLY 5 9 8
MAX LVORI LATE 4 9 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ069-212015-
MONROE-
INCLUDING THE CITY OF WOODSFIELD
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 100 0
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 82 (-2) 64 (-1) 76
RH % (24H TREND) 80 (+34) 100 (+6) 58
WIND 20FT/EARLY(MPH) SW 6 G17 SW 6 G21 NW 5
WIND 20FT/LATE(MPH) SW 9 G22 LGT/VAR NW 6
PRECIP AMOUNT 0.60 0.23 0.00
PRECIP DURATION 2 2
PRECIP BEGIN 10 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 840 1550
MIXING HGT(FT-AGL/MSL)2750 5100
TRANSPORT WND (MPH) W 15 NW 12
VENT RATE (KT-FT) 35750 51000
CATEGORY DAY 3 3
INVERSION 75F/9AM 8PM 66F/8AM
DISPERSION 3 3
MAX ADI EARLY 45 GEN GOOD 19 GEN POOR 32 FAIR
MAX ADI LATE 56 GEN GOOD 5 VERY POOR 71 GOOD
MAX LVORI EARLY 6 8 8
MAX LVORI LATE 4 9 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
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 80 0
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 79 (-1) 58 (-1) 70
RH % (24H TREND) 75 (+30) 100 (+16) 59
WIND 20FT/EARLY(MPH) S 9 G19 SW 7 G17 NW 8
WIND 20FT/LATE(MPH) SW 12 G22 NW 5 NW 10
PRECIP AMOUNT 0.61 0.24 0.00
PRECIP DURATION 3 2
PRECIP BEGIN 8 AM CONTINUING
PRECIP END CONTINUING 3 AM
MIXING HGT(M-AGL/MSL) 910 1380
MIXING HGT(FT-AGL/MSL)2990 4530
TRANSPORT WND (MPH) SW 23 NW 14
VENT RATE (KT-FT) 59800 54360
CATEGORY DAY 4 4
INVERSION 72F/10AM 8PM 59F/7AM
DISPERSION 4 4
MAX ADI EARLY 41 GEN GOOD 22 FAIR 44 GEN GOOD
MAX ADI LATE 52 GEN GOOD 11 POOR 53 GEN GOOD
MAX LVORI EARLY 4 7 7
MAX LVORI LATE 4 8 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
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 100 80 20
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 78 (0) 57 (-1) 69
RH % (24H TREND) 79 (+30) 100 (+13) 61
WIND 20FT/EARLY(MPH) S 7 G18 SW 5 G17 NW 7
WIND 20FT/LATE(MPH) SW 9 G20 W 5 NW 9 G17
PRECIP AMOUNT 0.61 0.23 0.00
PRECIP DURATION 3 2 0
PRECIP BEGIN 8 AM CONTINUING 10 AM
PRECIP END CONTINUING 2 AM 2 PM
MIXING HGT(M-AGL/MSL) 890 1370
MIXING HGT(FT-AGL/MSL)2940 4480
TRANSPORT WND (MPH) SW 22 W 15
VENT RATE (KT-FT) 55860 58240
CATEGORY DAY 4 4
INVERSION 71F/10AM 7PM 59F/7AM
DISPERSION 4 4
MAX ADI EARLY 46 GEN GOOD 20 GEN POOR 48 GEN GOOD
MAX ADI LATE 55 GEN GOOD 8 POOR 58 GEN GOOD
MAX LVORI EARLY 4 7 6
MAX LVORI LATE 4 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ009-212015-
FOREST-
INCLUDING THE CITY OF TIONESTA
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 90 0
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 78 (0) 57 (0) 69
RH % (24H TREND) 77 (+33) 100 (+13) 57
WIND 20FT/EARLY(MPH) S 5 G18 LGT/VAR NW 5
WIND 20FT/LATE(MPH) SW 8 G20 LGT/VAR NW 7 G17
PRECIP AMOUNT 0.62 0.28 0.00
PRECIP DURATION 2 2
PRECIP BEGIN 8 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 890 1250
MIXING HGT(FT-AGL/MSL)2910 4090
TRANSPORT WND (MPH) SW 20 NW 15
VENT RATE (KT-FT) 49470 53170
CATEGORY DAY 4 4
INVERSION 70F/10AM 7PM 58F/7AM
DISPERSION 4 4
MAX ADI EARLY 42 GEN GOOD 13 GEN POOR 50 GEN GOOD
MAX ADI LATE 67 GOOD 7 POOR 71 GOOD
MAX LVORI EARLY 5 7 8
MAX LVORI LATE 4 9 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
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 60 0
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 80 (+1) 59 (-1) 72
RH % (24H TREND) 76 (+33) 100 (+16) 58
WIND 20FT/EARLY(MPH) S 7 G18 SW 6 G17 NW 7
WIND 20FT/LATE(MPH) SW 11 G21 LGT/VAR NW 9
PRECIP AMOUNT 0.55 0.21 0.00
PRECIP DURATION 3 2
PRECIP BEGIN 8 AM CONTINUING
PRECIP END CONTINUING 1 AM
MIXING HGT(M-AGL/MSL) 1020 1560
MIXING HGT(FT-AGL/MSL)3330 5130
TRANSPORT WND (MPH) SW 22 NW 14
VENT RATE (KT-FT) 63270 61560
CATEGORY DAY 4 4
INVERSION 73F/10AM 8PM 60F/7AM
DISPERSION 4 4
MAX ADI EARLY 38 FAIR 18 GEN POOR 51 GEN GOOD
MAX ADI LATE 53 GEN GOOD 8 POOR 77 GOOD
MAX LVORI EARLY 4 8 6
MAX LVORI LATE 4 9 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ014-212015-
BUTLER-
INCLUDING THE CITY OF BUTLER
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 100 70 0
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 80 (0) 58 (0) 73
RH % (24H TREND) 79 (+34) 100 (+12) 61
WIND 20FT/EARLY(MPH) S 7 G17 SW 6 G19 NW 7
WIND 20FT/LATE(MPH) SW 11 G21 LGT/VAR NW 9
PRECIP AMOUNT 0.57 0.19 0.00
PRECIP DURATION 3 2
PRECIP BEGIN 8 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 1070 1520
MIXING HGT(FT-AGL/MSL)3500 5000
TRANSPORT WND (MPH) SW 23 W 14
VENT RATE (KT-FT) 70000 60000
CATEGORY DAY 4 4
INVERSION 73F/10AM 8PM 60F/7AM
DISPERSION 4 4
MAX ADI EARLY 42 GEN GOOD 21 FAIR 55 GEN GOOD
MAX ADI LATE 58 GEN GOOD 8 POOR 67 GOOD
MAX LVORI EARLY 5 8 8
MAX LVORI LATE 4 8 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ015-212015-
CLARION-
INCLUDING THE CITY OF CLARION
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 100 90 0
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 79 (+2) 58 (0) 72
RH % (24H TREND) 77 (+31) 100 (+12) 58
WIND 20FT/EARLY(MPH) S 6 G18 SW 5 G18 NW 7
WIND 20FT/LATE(MPH) SW 9 G20 LGT/VAR NW 9 G17
PRECIP AMOUNT 0.66 0.22 0.00
PRECIP DURATION 2 2
PRECIP BEGIN 8 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 940 1440
MIXING HGT(FT-AGL/MSL)3090 4710
TRANSPORT WND (MPH) SW 17 W 14
VENT RATE (KT-FT) 46350 56520
CATEGORY DAY 3 4
INVERSION 71F/10AM 7PM 60F/7AM
DISPERSION 3 4
MAX ADI EARLY 42 GEN GOOD 16 GEN POOR 53 GEN GOOD
MAX ADI LATE 56 GEN GOOD 7 POOR 71 GOOD
MAX LVORI EARLY 5 6 8
MAX LVORI LATE 4 9 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
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 100 0
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 78 (+1) 59 (+1) 72
RH % (24H TREND) 77 (+32) 100 (+13) 57
WIND 20FT/EARLY(MPH) S 6 G18 SW 7 G20 NW 7
WIND 20FT/LATE(MPH) SW 10 G22 W 5 NW 9 G18
PRECIP AMOUNT 0.63 0.25 0.00
PRECIP DURATION 1 3
PRECIP BEGIN 9 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 940 1470
MIXING HGT(FT-AGL/MSL)3090 4840
TRANSPORT WND (MPH) SW 18 W 14
VENT RATE (KT-FT) 49440 58080
CATEGORY DAY 3 4
INVERSION 70F/9AM 7PM 61F/8AM
DISPERSION 3 4
MAX ADI EARLY 38 FAIR 14 GEN POOR 56 GEN GOOD
MAX ADI LATE 44 GEN GOOD 8 POOR 60 GEN GOOD
MAX LVORI EARLY 5 6 8
MAX LVORI LATE 4 8 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
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 60 0
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 80 (-1) 61 (0) 73
RH % (24H TREND) 76 (+36) 100 (+15) 57
WIND 20FT/EARLY(MPH) SW 7 G18 SW 6 G20 NW 6
WIND 20FT/LATE(MPH) SW 11 G22 LGT/VAR NW 8
PRECIP AMOUNT 0.53 0.14 0.00
PRECIP DURATION 2 2
PRECIP BEGIN 9 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 1060 1590
MIXING HGT(FT-AGL/MSL)3490 5210
TRANSPORT WND (MPH) SW 24 NW 14
VENT RATE (KT-FT) 73290 62520
CATEGORY DAY 4 4
INVERSION 73F/9AM 8PM 62F/7AM
DISPERSION 4 4
MAX ADI EARLY 41 GEN GOOD 23 FAIR 54 GEN GOOD
MAX ADI LATE 61 GOOD 7 POOR 77 GOOD
MAX LVORI EARLY 4 6 6
MAX LVORI LATE 4 8 2
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
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 80 0
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 82 (0) 62 (0) 76
RH % (24H TREND) 76 (+32) 100 (+13) 57
WIND 20FT/EARLY(MPH) SW 8 G18 SW 9 G23 NW 8
WIND 20FT/LATE(MPH) SW 13 G23 W 5 NW 10
PRECIP AMOUNT 0.48 0.16 0.00
PRECIP DURATION 1 3
PRECIP BEGIN 9 AM CONTINUING
PRECIP END CONTINUING 3 AM
MIXING HGT(M-AGL/MSL) 1010 1680
MIXING HGT(FT-AGL/MSL)3300 5500
TRANSPORT WND (MPH) SW 17 W 14
VENT RATE (KT-FT) 49500 66000
CATEGORY DAY 4 4
INVERSION 74F/9AM 8PM 64F/7AM
DISPERSION 4 4
MAX ADI EARLY 40 FAIR 25 FAIR 56 GEN GOOD
MAX ADI LATE 53 GEN GOOD 8 POOR 61 GOOD
MAX LVORI EARLY 5 6 8
MAX LVORI LATE 4 9 2
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
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 100 90 0
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 82 (+2) 60 (+1) 75
RH % (24H TREND) 77 (+28) 100 (+9) 59
WIND 20FT/EARLY(MPH) S 7 G17 SW 7 G20 NW 7
WIND 20FT/LATE(MPH) SW 11 G22 LGT/VAR NW 9
PRECIP AMOUNT 0.62 0.26 0.00
PRECIP DURATION 1 3
PRECIP BEGIN 9 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 960 1560
MIXING HGT(FT-AGL/MSL)3150 5100
TRANSPORT WND (MPH) SW 17 W 14
VENT RATE (KT-FT) 47250 61200
CATEGORY DAY 3 4
INVERSION 72F/9AM 7PM 62F/7AM
DISPERSION 3 4
MAX ADI EARLY 41 GEN GOOD 18 GEN POOR 53 GEN GOOD
MAX ADI LATE 49 GEN GOOD 7 POOR 61 GOOD
MAX LVORI EARLY 5 7 8
MAX LVORI LATE 4 9 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
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 80 0
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 81 (0) 63 (+1) 75
RH % (24H TREND) 77 (+29) 100 (+12) 57
WIND 20FT/EARLY(MPH) SW 9 G18 SW 9 G22 NW 7
WIND 20FT/LATE(MPH) SW 13 G23 W 5 NW 9
PRECIP AMOUNT 0.43 0.17 0.00
PRECIP DURATION 1 2
PRECIP BEGIN 9 AM CONTINUING
PRECIP END CONTINUING 3 AM
MIXING HGT(M-AGL/MSL) 980 1690
MIXING HGT(FT-AGL/MSL)3210 5560
TRANSPORT WND (MPH) SW 17 W 14
VENT RATE (KT-FT) 48150 66720
CATEGORY DAY 3 4
INVERSION 74F/9AM 8PM 65F/8AM
DISPERSION 3 4
MAX ADI EARLY 41 GEN GOOD 28 FAIR 43 GEN GOOD
MAX ADI LATE 51 GEN GOOD 8 POOR 69 GOOD
MAX LVORI EARLY 5 6 8
MAX LVORI LATE 4 9 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ031-212015-
GREENE-
INCLUDING THE CITY OF WAYNESBURG
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 100 80 0
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 81 (-2) 64 (+1) 76
RH % (24H TREND) 79 (+27) 100 (+7) 60
WIND 20FT/EARLY(MPH) SW 7 G17 SW 8 G22 NW 5
WIND 20FT/LATE(MPH) SW 11 G21 LGT/VAR NW 7
PRECIP AMOUNT 0.39 0.27 0.00
PRECIP DURATION 1 2
PRECIP BEGIN 8 AM CONTINUING
PRECIP END CONTINUING 3 AM
MIXING HGT(M-AGL/MSL) 970 1560
MIXING HGT(FT-AGL/MSL)3190 5120
TRANSPORT WND (MPH) SW 17 W 13
VENT RATE (KT-FT) 47850 56320
CATEGORY DAY 3 4
INVERSION 74F/9AM 8PM 65F/8AM
DISPERSION 3 4
MAX ADI EARLY 53 GEN GOOD 29 FAIR 32 FAIR
MAX ADI LATE 49 GEN GOOD 8 POOR 70 GOOD
MAX LVORI EARLY 5 8 9
MAX LVORI LATE 4 9 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
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 80 90 20
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 82 (+1) 62 (0) 75
RH % (24H TREND) 76 (+23) 100 (+10) 58
WIND 20FT/EARLY(MPH) SW 9 G19 SW 10 G22 NW 7
WIND 20FT/LATE(MPH) SW 14 G23 SW 6 NW 10
PRECIP AMOUNT 0.36 0.26 0.01
PRECIP DURATION 1 4 1
PRECIP BEGIN 9 AM CONTINUING 6 AM
PRECIP END CONTINUING 5 AM 2 PM
MIXING HGT(M-AGL/MSL) 990 1670
MIXING HGT(FT-AGL/MSL)3260 5480
TRANSPORT WND (MPH) SW 18 W 15
VENT RATE (KT-FT) 52160 71240
CATEGORY DAY 3 4
INVERSION 74F/9AM 7PM 65F/8AM
DISPERSION 3 4
MAX ADI EARLY 39 FAIR 23 FAIR 41 GEN GOOD
MAX ADI LATE 50 GEN GOOD 8 POOR 63 GOOD
MAX LVORI EARLY 5 7 8
MAX LVORI LATE 4 9 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
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 70 90 30
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 82 (0) 61 (-1) 75
RH % (24H TREND) 70 (+18) 100 (+9) 56
WIND 20FT/EARLY(MPH) SW 7 G18 SW 9 G22 W 6
WIND 20FT/LATE(MPH) SW 11 G22 W 5 G17 NW 8 G17
PRECIP AMOUNT 0.21 0.33 0.02
PRECIP DURATION 1 5 1
PRECIP BEGIN 9 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 1 PM
MIXING HGT(M-AGL/MSL) 960 1500
MIXING HGT(FT-AGL/MSL)3150 4920
TRANSPORT WND (MPH) SW 17 W 16
VENT RATE (KT-FT) 47250 68880
CATEGORY DAY 3 4
INVERSION 73F/9AM 7PM 63F/8AM
DISPERSION 3 4
MAX ADI EARLY 42 GEN GOOD 25 FAIR 32 FAIR
MAX ADI LATE 51 GEN GOOD 10 POOR 81 GOOD
MAX LVORI EARLY 5 7 8
MAX LVORI LATE 3 8 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ075-212015-
FAYETTE-
INCLUDING THE CITY OF UNIONTOWN
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 90 80 30
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 82 (-1) 63 (0) 76
RH % (24H TREND) 76 (+23) 100 (+10) 58
WIND 20FT/EARLY(MPH) SW 8 G17 SW 9 G21 W 5
WIND 20FT/LATE(MPH) SW 11 G21 LGT/VAR NW 8
PRECIP AMOUNT 0.32 0.31 0.00
PRECIP DURATION 1 5 1
PRECIP BEGIN 8 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 1 PM
MIXING HGT(M-AGL/MSL) 970 1540
MIXING HGT(FT-AGL/MSL)3190 5050
TRANSPORT WND (MPH) SW 16 W 13
VENT RATE (KT-FT) 44660 55550
CATEGORY DAY 3 4
INVERSION 75F/9AM 7PM 66F/8AM
DISPERSION 3 4
MAX ADI EARLY 38 FAIR 22 FAIR 29 FAIR
MAX ADI LATE 47 GEN GOOD 8 POOR 69 GOOD
MAX LVORI EARLY 5 7 9
MAX LVORI LATE 4 9 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
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 90 90 40
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 80 (-1) 61 (0) 74
RH % (24H TREND) 73 (+20) 100 (+6) 58
WIND 20FT/EARLY(MPH) SW 6 G17 SW 7 G21 W 5
WIND 20FT/LATE(MPH) SW 9 G21 LGT/VAR NW 6
PRECIP AMOUNT 0.28 0.37 0.01
PRECIP DURATION 1 5 1
PRECIP BEGIN 8 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 11 AM
MIXING HGT(M-AGL/MSL) 960 1410
MIXING HGT(FT-AGL/MSL)3150 4630
TRANSPORT WND (MPH) SW 17 NW 14
VENT RATE (KT-FT) 47250 55560
CATEGORY DAY 3 4
INVERSION 70F/8AM 7PM 63F/8AM
DISPERSION 3 4
MAX ADI EARLY 47 GEN GOOD 22 FAIR 26 FAIR
MAX ADI LATE 57 GEN GOOD 9 POOR 69 GOOD
MAX LVORI EARLY 6 7 8
MAX LVORI LATE 3 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ077-212015-
INDIANA-
INCLUDING THE CITY OF INDIANA
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 90 100 20
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 81 (+2) 61 (+1) 74
RH % (24H TREND) 76 (+22) 100 (+8) 59
WIND 20FT/EARLY(MPH) S 7 G17 SW 8 G21 NW 7
WIND 20FT/LATE(MPH) SW 11 G22 SW 5 NW 10 G17
PRECIP AMOUNT 0.50 0.33 0.00
PRECIP DURATION 1 4 1
PRECIP BEGIN 9 AM CONTINUING 6 AM
PRECIP END CONTINUING 3 AM 1 PM
MIXING HGT(M-AGL/MSL) 940 1570
MIXING HGT(FT-AGL/MSL)3080 5140
TRANSPORT WND (MPH) SW 21 W 15
VENT RATE (KT-FT) 55440 66820
CATEGORY DAY 4 4
INVERSION 72F/9AM 7PM 63F/8AM
DISPERSION 4 4
MAX ADI EARLY 38 FAIR 20 GEN POOR 47 GEN GOOD
MAX ADI LATE 50 GEN GOOD 8 POOR 65 GOOD
MAX LVORI EARLY 5 7 8
MAX LVORI LATE 4 9 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
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 70 90 30
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 81 (+2) 61 (0) 74
RH % (24H TREND) 76 (+20) 100 (+8) 59
WIND 20FT/EARLY(MPH) SW 6 G18 SW 9 G22 W 7
WIND 20FT/LATE(MPH) SW 11 G22 SW 6 NW 9 G18
PRECIP AMOUNT 0.32 0.39 0.01
PRECIP DURATION 1 5 1
PRECIP BEGIN 9 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 1 PM
MIXING HGT(M-AGL/MSL) 970 1520
MIXING HGT(FT-AGL/MSL)3190 4990
TRANSPORT WND (MPH) SW 20 W 16
VENT RATE (KT-FT) 54230 69860
CATEGORY DAY 4 4
INVERSION 72F/9AM 7PM 63F/8AM
DISPERSION 4 4
MAX ADI EARLY 42 GEN GOOD 20 GEN POOR 43 GEN GOOD
MAX ADI LATE 51 GEN GOOD 10 POOR 66 GOOD
MAX LVORI EARLY 5 7 8
MAX LVORI LATE 4 8 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ001-212015-
HANCOCK-
INCLUDING THE CITY OF WEIRTON
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 60 0
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 80 (0) 62 (+1) 73
RH % (24H TREND) 77 (+37) 99 (+13) 55
WIND 20FT/EARLY(MPH) SW 7 G18 SW 7 G20 NW 6
WIND 20FT/LATE(MPH) SW 11 G22 LGT/VAR NW 8
PRECIP AMOUNT 0.45 0.08 0.00
PRECIP DURATION 2 1
PRECIP BEGIN 9 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 1000 1590
MIXING HGT(FT-AGL/MSL)3270 5230
TRANSPORT WND (MPH) SW 24 W 14
VENT RATE (KT-FT) 68670 62760
CATEGORY DAY 4 4
INVERSION 73F/9AM 9PM 62F/7AM
DISPERSION 4 4
MAX ADI EARLY 47 GEN GOOD 20 GEN POOR 51 GEN GOOD
MAX ADI LATE 61 GOOD 7 POOR 79 GOOD
MAX LVORI EARLY 4 6 8
MAX LVORI LATE 4 9 1
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
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 70 0
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 81 (0) 63 (0) 75
RH % (24H TREND) 77 (+35) 100 (+14) 54
WIND 20FT/EARLY(MPH) SW 8 G18 SW 8 G21 NW 6
WIND 20FT/LATE(MPH) SW 12 G22 LGT/VAR NW 8
PRECIP AMOUNT 0.52 0.11 0.00
PRECIP DURATION 2 1
PRECIP BEGIN 9 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 920 1710
MIXING HGT(FT-AGL/MSL)3000 5600
TRANSPORT WND (MPH) SW 22 W 13
VENT RATE (KT-FT) 57000 61600
CATEGORY DAY 4 4
INVERSION 74F/9AM 8PM 65F/8AM
DISPERSION 4 4
MAX ADI EARLY 54 GEN GOOD 23 FAIR 52 GEN GOOD
MAX ADI LATE 53 GEN GOOD 7 POOR 79 GOOD
MAX LVORI EARLY 5 6 8
MAX LVORI LATE 4 9 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ003-212015-
OHIO-
INCLUDING THE CITY OF WHEELING
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 90 0
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 81 (0) 63 (-1) 75
RH % (24H TREND) 80 (+35) 100 (+11) 56
WIND 20FT/EARLY(MPH) SW 8 G18 SW 8 G21 NW 6
WIND 20FT/LATE(MPH) SW 12 G22 LGT/VAR NW 8
PRECIP AMOUNT 0.47 0.16 0.00
PRECIP DURATION 1 2
PRECIP BEGIN 9 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 890 1650
MIXING HGT(FT-AGL/MSL)2920 5410
TRANSPORT WND (MPH) SW 21 W 13
VENT RATE (KT-FT) 52560 59510
CATEGORY DAY 4 4
INVERSION 74F/9AM 8PM 65F/8AM
DISPERSION 4 4
MAX ADI EARLY 50 GEN GOOD 26 FAIR 42 GEN GOOD
MAX ADI LATE 47 GEN GOOD 7 POOR 77 GOOD
MAX LVORI EARLY 5 8 8
MAX LVORI LATE 4 9 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ004-212015-
MARSHALL-
INCLUDING THE CITY OF MOUNDSVILLE
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 90 0
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 82 (-1) 64 (-1) 77
RH % (24H TREND) 83 (+35) 100 (+8) 61
WIND 20FT/EARLY(MPH) SW 7 G17 SW 8 G21 NW 5
WIND 20FT/LATE(MPH) SW 10 G22 LGT/VAR NW 7
PRECIP AMOUNT 0.50 0.24 0.00
PRECIP DURATION 1 2
PRECIP BEGIN 9 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 900 1600
MIXING HGT(FT-AGL/MSL)2960 5230
TRANSPORT WND (MPH) SW 21 W 13
VENT RATE (KT-FT) 53280 57530
CATEGORY DAY 4 4
INVERSION 74F/9AM 7PM 66F/8AM
DISPERSION 4 4
MAX ADI EARLY 49 GEN GOOD 25 FAIR 34 FAIR
MAX ADI LATE 48 GEN GOOD 7 POOR 74 GOOD
MAX LVORI EARLY 5 8 8
MAX LVORI LATE 4 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ012-212015-
WETZEL-
INCLUDING THE CITY OF NEW MARTINSVILLE
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 100 100 0
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 80 (-2) 64 (-1) 75
RH % (24H TREND) 85 (+33) 100 (+5) 65
WIND 20FT/EARLY(MPH) SW 7 G17 SW 7 G21 LGT/VAR
WIND 20FT/LATE(MPH) SW 9 G21 LGT/VAR NW 6
PRECIP AMOUNT 0.59 0.31 0.00
PRECIP DURATION 2 2
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 920 1520
MIXING HGT(FT-AGL/MSL)3030 4990
TRANSPORT WND (MPH) W 17 NW 12
VENT RATE (KT-FT) 45450 49900
CATEGORY DAY 3 3
INVERSION 74F/9AM 8PM 66F/8AM
DISPERSION 3 3
MAX ADI EARLY 49 GEN GOOD 19 GEN POOR 31 FAIR
MAX ADI LATE 53 GEN GOOD 7 POOR 65 GOOD
MAX LVORI EARLY 6 8 9
MAX LVORI LATE 4 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ021-212015-
MARION-
INCLUDING THE CITY OF FAIRMONT
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 90 90 30
CHANCE OF THUNDER (%) 50 50 20
TEMP (24H TREND) 80 (-4) 64 (0) 76
RH % (24H TREND) 82 (+27) 100 (+4) 63
WIND 20FT/EARLY(MPH) SW 7 SW 8 G21 LGT/VAR
WIND 20FT/LATE(MPH) SW 9 G21 LGT/VAR NW 6
PRECIP AMOUNT 0.51 0.38 0.00
PRECIP DURATION 1 3 1
PRECIP BEGIN 6 AM CONTINUING 6 AM
PRECIP END CONTINUING 5 AM 3 PM
MIXING HGT(M-AGL/MSL) 1020 1480
MIXING HGT(FT-AGL/MSL)3340 4850
TRANSPORT WND (MPH) W 16 NW 12
VENT RATE (KT-FT) 46760 48500
CATEGORY DAY 3 3
INVERSION 74F/9AM 8PM 66F/8AM
DISPERSION 3 3
MAX ADI EARLY 49 GEN GOOD 21 FAIR 28 FAIR
MAX ADI LATE 55 GEN GOOD 8 POOR 67 GOOD
MAX LVORI EARLY 6 8 9
MAX LVORI LATE 4 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
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 90 90 20
CHANCE OF THUNDER (%) 50 50 20
TEMP (24H TREND) 81 (-1) 64 (-1) 76
RH % (24H TREND) 80 (+25) 100 (+7) 61
WIND 20FT/EARLY(MPH) SW 7 SW 9 G21 LGT/VAR
WIND 20FT/LATE(MPH) SW 9 G21 LGT/VAR NW 7
PRECIP AMOUNT 0.40 0.32 0.00
PRECIP DURATION 1 3 1
PRECIP BEGIN 7 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 1 PM
MIXING HGT(M-AGL/MSL) 1010 1440
MIXING HGT(FT-AGL/MSL)3300 4730
TRANSPORT WND (MPH) SW 16 NW 12
VENT RATE (KT-FT) 46200 47300
CATEGORY DAY 3 3
INVERSION 75F/9AM 8PM 66F/8AM
DISPERSION 3 3
MAX ADI EARLY 48 GEN GOOD 24 FAIR 26 FAIR
MAX ADI LATE 54 GEN GOOD 8 POOR 60 GEN GOOD
MAX LVORI EARLY 5 7 9
MAX LVORI LATE 4 9 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
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 90 90 40
CHANCE OF THUNDER (%) 50 50 20
TEMP (24H TREND) 79 (-1) 62 (-1) 73
RH % (24H TREND) 80 (+23) 100 (+6) 61
WIND 20FT/EARLY(MPH) SW 7 SW 8 G21 W 5
WIND 20FT/LATE(MPH) SW 8 G21 W 5 NW 6
PRECIP AMOUNT 0.42 0.38 0.01
PRECIP DURATION 1 4 1
PRECIP BEGIN 8 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 3 PM
MIXING HGT(M-AGL/MSL) 940 1310
MIXING HGT(FT-AGL/MSL)3080 4310
TRANSPORT WND (MPH) SW 16 W 12
VENT RATE (KT-FT) 43120 43100
CATEGORY DAY 3 3
INVERSION 72F/9AM 8PM 64F/8AM
DISPERSION 3 3
MAX ADI EARLY 46 GEN GOOD 21 FAIR 22 FAIR
MAX ADI LATE 55 GEN GOOD 8 POOR 58 GEN GOOD
MAX LVORI EARLY 6 7 9
MAX LVORI LATE 4 9 4
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
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 90 90 50
CHANCE OF THUNDER (%) 50 50 20
TEMP (24H TREND) 80 (-1) 62 (-1) 74
RH % (24H TREND) 75 (+19) 100 (+4) 60
WIND 20FT/EARLY(MPH) SW 6 SW 7 G21 LGT/VAR
WIND 20FT/LATE(MPH) SW 9 G20 LGT/VAR NW 6
PRECIP AMOUNT 0.39 0.42 0.02
PRECIP DURATION 1 5 2
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 950 1310
MIXING HGT(FT-AGL/MSL)3110 4280
TRANSPORT WND (MPH) W 17 NW 12
VENT RATE (KT-FT) 46650 42800
CATEGORY DAY 3 3
INVERSION 71F/8AM 8PM 65F/8AM
DISPERSION 3 3
MAX ADI EARLY 44 GEN GOOD 20 GEN POOR 23 FAIR
MAX ADI LATE 56 GEN GOOD 8 POOR 60 GEN GOOD
MAX LVORI EARLY 6 8 8
MAX LVORI LATE 4 9 4
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
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 90 90 60
CHANCE OF THUNDER (%) 50 50 20
TEMP (24H TREND) 79 (-2) 62 (-1) 73
RH % (24H TREND) 76 (+17) 100 (+3) 63
WIND 20FT/EARLY(MPH) SW 7 G18 SW 9 G21 W 5
WIND 20FT/LATE(MPH) SW 9 G20 W 6 G17 NW 7
PRECIP AMOUNT 0.37 0.45 0.02
PRECIP DURATION 1 7 3
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 860 1280
MIXING HGT(FT-AGL/MSL)2810 4210
TRANSPORT WND (MPH) W 17 W 14
VENT RATE (KT-FT) 42150 50520
CATEGORY DAY 3 3
INVERSION 69F/8AM 8PM 64F/8AM
DISPERSION 3 3
MAX ADI EARLY 41 GEN GOOD 21 FAIR 24 FAIR
MAX ADI LATE 52 GEN GOOD 12 POOR 60 GEN GOOD
MAX LVORI EARLY 6 5 8
MAX LVORI LATE 4 8 4
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
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 80 90 60
CHANCE OF THUNDER (%) 50 50 20
TEMP (24H TREND) 81 (-3) 64 (0) 75
RH % (24H TREND) 71 (+15) 100 (+4) 63
WIND 20FT/EARLY(MPH) SW 6 G18 SW 9 G22 LGT/VAR
WIND 20FT/LATE(MPH) SW 9 G20 LGT/VAR W 6
PRECIP AMOUNT 0.39 0.65 0.04
PRECIP DURATION 1 8 3
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 930 1210
MIXING HGT(FT-AGL/MSL)3050 3970
TRANSPORT WND (MPH) W 17 W 13
VENT RATE (KT-FT) 45750 43670
CATEGORY DAY 3 3
INVERSION 71F/9AM 8PM 65F/8AM
DISPERSION 3 3
MAX ADI EARLY 43 GEN GOOD 18 GEN POOR 27 FAIR
MAX ADI LATE 53 GEN GOOD 8 POOR 46 GEN GOOD
MAX LVORI EARLY 6 8 8
MAX LVORI LATE 3 9 4
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
1212 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 80 90 50
CHANCE OF THUNDER (%) 50 50 20
TEMP (24H TREND) 78 (0) 59 (-2) 72
RH % (24H TREND) 72 (+14) 100 (+2) 70
WIND 20FT/EARLY(MPH) W 7 G23 W 9 G26 W 6 G19
WIND 20FT/LATE(MPH) W 9 G24 W 7 G24 W 7 G19
PRECIP AMOUNT 0.26 0.67 0.04
PRECIP DURATION 1 7 2
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 940 1070
MIXING HGT(FT-AGL/MSL)3070 3500
TRANSPORT WND (MPH) W 18 W 15
VENT RATE (KT-FT) 49120 45500
CATEGORY DAY 3 3
INVERSION 68F/8AM 8PM 63F/8AM
DISPERSION 3 3
MAX ADI EARLY 50 GEN GOOD 20 GEN POOR 34 FAIR
MAX ADI LATE 56 GEN GOOD 15 GEN POOR 56 GEN GOOD
MAX LVORI EARLY 7 5 8
MAX LVORI LATE 4 8 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE MID
70S. NORTH WINDS AROUND 5 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS AROUND 80.
NORTHEAST WINDS AROUND 5 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE LOWER 60S. HIGHS IN THE
LOWER 80S. SOUTHEAST WINDS 5 TO 10 MPH.
SUNDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE LOWER 60S. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 5 MPH.
MONDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 60S. HIGHS IN THE LOWER 80S. WEST WINDS 5 TO
10 MPH.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page