964
FNUS51 KPBZ 190632
FWFPBZ
FIRE WEATHER PLANNING FORECAST
NATIONAL WEATHER SERVICE PITTSBURGH PA
232 AM EDT TUE MAY 19 2026
DISCUSSION
RELATIVE HUMIDITY SHOULD LARGELY REMAIN ABOVE THE 40 TO 45 PERCENT
RANGE BOTH TODAY AND WEDNESDAY. SUSTAINED WIND OF 10 TO 15 MPH
THIS AFTERNOON MAY GUST TO BETWEEN 20 AND 30 MPH AT TIMES. A WIND
SHIFT TO NORTHWEST IS FORECAST FOR WEDNESDAY, WITH SLIGHTLY
WEAKER GUSTS. WETTING RAIN CHANCES ARE RELATIVELY HIGH TONIGHT
INTO WEDNESDAY. OVERALL, FIRE CONCERNS REMAIN LOW.
OHZ039-192030-
TUSCARAWAS-
INCLUDING THE CITIES OF NEW PHILADELPHIA AND DOVER
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 20 70 70
CHANCE OF THUNDER (%) 20 40 20
TEMP (24H TREND) 88 (-1) 61 (-6) 70
RH % (24H TREND) 43 (+3) 98 (+18) 55
WIND 20FT/EARLY(MPH) SW 8 G20 SW 8 G19 NW 6
WIND 20FT/LATE(MPH) SW 12 G21 SW 5 N 9
PRECIP AMOUNT 0.01 0.08 0.11
PRECIP DURATION 1 3 4
PRECIP BEGIN 11 AM 8 PM CONTINUING
PRECIP END 6 PM CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1760 820
MIXING HGT(FT-AGL/MSL)5770 2680
TRANSPORT WND (MPH) SW 23 N 14
VENT RATE (KT-FT) 115400 32160
CATEGORY DAY 5 3
INVERSION 75F/9AM 8PM 69F/8AM
DISPERSION 5 3
MAX ADI EARLY 69 GOOD 28 FAIR 29 FAIR
MAX ADI LATE 97 GOOD 8 POOR 41 GEN GOOD
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ040-192030-
CARROLL-
INCLUDING THE CITIES OF CARROLLTON AND MALVERN
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 20 70 60
CHANCE OF THUNDER (%) 20 30 20
TEMP (24H TREND) 87 (-1) 61 (-5) 69
RH % (24H TREND) 45 (+2) 99 (+15) 54
WIND 20FT/EARLY(MPH) SW 9 G20 SW 9 G19 NW 8
WIND 20FT/LATE(MPH) SW 12 G21 SW 6 N 9
PRECIP AMOUNT 0.01 0.07 0.10
PRECIP DURATION 1 3 3
PRECIP BEGIN 9 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1680 800
MIXING HGT(FT-AGL/MSL)5520 2640
TRANSPORT WND (MPH) SW 22 N 14
VENT RATE (KT-FT) 104880 31680
CATEGORY DAY 5 3
INVERSION 74F/9AM 8PM 63F/7AM
DISPERSION 5 3
MAX ADI EARLY 70 GOOD 28 FAIR 28 FAIR
MAX ADI LATE 94 GOOD 12 POOR 42 GEN GOOD
MAX LVORI EARLY 3 2 4
MAX LVORI LATE 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ041-192030-
COLUMBIANA-
INCLUDING THE CITIES OF EAST LIVERPOOL, SALEM, AND COLUMBIANA
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 20 70 60
CHANCE OF THUNDER (%) 20 40 20
TEMP (24H TREND) 87 (-1) 60 (-6) 68
RH % (24H TREND) 46 (+3) 100 (+17) 54
WIND 20FT/EARLY(MPH) SW 8 G19 SW 8 G19 NW 7
WIND 20FT/LATE(MPH) SW 12 G20 SW 6 N 9
PRECIP AMOUNT 0.00 0.05 0.08
PRECIP DURATION 1 2 3
PRECIP BEGIN 10 AM 8 PM CONTINUING
PRECIP END 6 PM CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1600 790
MIXING HGT(FT-AGL/MSL)5240 2600
TRANSPORT WND (MPH) SW 23 N 16
VENT RATE (KT-FT) 104800 36400
CATEGORY DAY 5 3
INVERSION 74F/9AM 8PM 63F/7AM
DISPERSION 5 3
MAX ADI EARLY 73 GOOD 19 GEN POOR 28 FAIR
MAX ADI LATE 94 GOOD 12 POOR 45 GEN GOOD
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ048-192030-
COSHOCTON-
INCLUDING THE CITY OF COSHOCTON
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 20 70 80
CHANCE OF THUNDER (%) 20 40 20
TEMP (24H TREND) 88 (-1) 61 (-6) 70
RH % (24H TREND) 43 (+8) 100 (+16) 53
WIND 20FT/EARLY(MPH) SW 7 G18 SW 7 G19 NW 5
WIND 20FT/LATE(MPH) SW 11 G19 LGT/VAR N 8
PRECIP AMOUNT 0.00 0.19 0.09
PRECIP DURATION 0 3 5
PRECIP BEGIN 12 PM 8 PM CONTINUING
PRECIP END 5 PM CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1720 730
MIXING HGT(FT-AGL/MSL)5650 2400
TRANSPORT WND (MPH) SW 23 N 15
VENT RATE (KT-FT) 113000 31200
CATEGORY DAY 5 3
INVERSION 75F/9AM 8PM 69F/8AM
DISPERSION 5 3
MAX ADI EARLY 69 GOOD 18 GEN POOR 30 FAIR
MAX ADI LATE 99 GOOD 8 POOR 41 GEN GOOD
MAX LVORI EARLY 3 3 5
MAX LVORI LATE 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ049-192030-
HARRISON-
INCLUDING THE CITY OF CADIZ
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 20 70 70
CHANCE OF THUNDER (%) 20 30 30
TEMP (24H TREND) 88 (-1) 63 (-3) 71
RH % (24H TREND) 44 (+2) 97 (+15) 55
WIND 20FT/EARLY(MPH) SW 8 G21 SW 8 G19 W 6
WIND 20FT/LATE(MPH) SW 11 G21 SW 6 N 8
PRECIP AMOUNT 0.01 0.03 0.13
PRECIP DURATION 1 3 6
PRECIP BEGIN 9 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1740 810
MIXING HGT(FT-AGL/MSL)5710 2640
TRANSPORT WND (MPH) SW 21 N 14
VENT RATE (KT-FT) 102780 31680
CATEGORY DAY 4 3
INVERSION 75F/9AM 8PM 64F/7AM
DISPERSION 4 3
MAX ADI EARLY 68 GOOD 16 GEN POOR 29 FAIR
MAX ADI LATE 94 GOOD 9 POOR 40 FAIR
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ050-192030-
JEFFERSON OH-
INCLUDING THE CITY OF STEUBENVILLE
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 20 60 70
CHANCE OF THUNDER (%) 20 30 30
TEMP (24H TREND) 88 (-1) 63 (-3) 72
RH % (24H TREND) 42 (0) 96 (+15) 54
WIND 20FT/EARLY(MPH) SW 8 G20 SW 8 G19 W 7
WIND 20FT/LATE(MPH) SW 11 G21 SW 6 N 8
PRECIP AMOUNT 0.00 0.03 0.14
PRECIP DURATION 1 2 5
PRECIP BEGIN 9 AM 6 PM CONTINUING
PRECIP END 2 PM CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1710 820
MIXING HGT(FT-AGL/MSL)5630 2680
TRANSPORT WND (MPH) SW 22 N 15
VENT RATE (KT-FT) 106970 34840
CATEGORY DAY 5 3
INVERSION 75F/9AM 8PM 69F/8AM
DISPERSION 5 3
MAX ADI EARLY 74 GOOD 17 GEN POOR 31 FAIR
MAX ADI LATE 94 GOOD 9 POOR 42 GEN GOOD
MAX LVORI EARLY 3 3 5
MAX LVORI LATE 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ057-192030-
MUSKINGUM-
INCLUDING THE CITY OF ZANESVILLE
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 20 70 80
CHANCE OF THUNDER (%) 20 30 30
TEMP (24H TREND) 89 (-1) 63 (-4) 72
RH % (24H TREND) 44 (+4) 99 (+19) 56
WIND 20FT/EARLY(MPH) SW 7 G19 SW 6 G18 LGT/VAR
WIND 20FT/LATE(MPH) SW 10 G19 LGT/VAR N 7
PRECIP AMOUNT 0.00 0.20 0.14
PRECIP DURATION 0 3 6
PRECIP BEGIN 12 PM 9 PM CONTINUING
PRECIP END 4 PM CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1800 780
MIXING HGT(FT-AGL/MSL)5900 2560
TRANSPORT WND (MPH) SW 23 N 14
VENT RATE (KT-FT) 118000 30720
CATEGORY DAY 5 3
INVERSION 75F/9AM 8PM 67F/8AM
DISPERSION 5 3
MAX ADI EARLY 74 GOOD 26 FAIR 27 FAIR
MAX ADI LATE 98 GOOD 8 POOR 41 GEN GOOD
MAX LVORI EARLY 4 3 6
MAX LVORI LATE 1 5 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ058-192030-
GUERNSEY-
INCLUDING THE CITY OF CAMBRIDGE
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 70 80
CHANCE OF THUNDER (%) 0 30 30
TEMP (24H TREND) 89 (-2) 63 (-3) 72
RH % (24H TREND) 43 (+1) 99 (+12) 56
WIND 20FT/EARLY(MPH) SW 7 G19 SW 6 G18 LGT/VAR
WIND 20FT/LATE(MPH) SW 10 G20 LGT/VAR N 7
PRECIP AMOUNT 0.00 0.07 0.18
PRECIP DURATION 2 7
PRECIP BEGIN 10 PM CONTINUING
PRECIP END CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1850 850
MIXING HGT(FT-AGL/MSL)6060 2780
TRANSPORT WND (MPH) SW 21 N 15
VENT RATE (KT-FT) 109080 36140
CATEGORY DAY 5 3
INVERSION 75F/9AM 8PM 68F/8AM
DISPERSION 5 3
MAX ADI EARLY 73 GOOD 15 GEN POOR 27 FAIR
MAX ADI LATE 122 VERY GOOD8 POOR 44 GEN GOOD
MAX LVORI EARLY 4 3 6
MAX LVORI LATE 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ059-192030-
BELMONT-
INCLUDING THE CITIES OF MARTINS FERRY AND ST. CLAIRSVILLE
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 20 60 80
CHANCE OF THUNDER (%) 20 30 30
TEMP (24H TREND) 88 (-2) 63 (-2) 73
RH % (24H TREND) 45 (+2) 97 (+15) 63
WIND 20FT/EARLY(MPH) SW 8 G21 SW 7 G19 W 6
WIND 20FT/LATE(MPH) SW 11 G21 SW 5 N 8
PRECIP AMOUNT 0.00 0.02 0.19
PRECIP DURATION 1 1 8
PRECIP BEGIN 9 AM 11 PM CONTINUING
PRECIP END 2 PM CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1700 770
MIXING HGT(FT-AGL/MSL)5590 2520
TRANSPORT WND (MPH) SW 21 NW 15
VENT RATE (KT-FT) 100620 32760
CATEGORY DAY 4 3
INVERSION 75F/9AM 8PM 68F/8AM
DISPERSION 4 3
MAX ADI EARLY 67 GOOD 13 GEN POOR 31 FAIR
MAX ADI LATE 90 GOOD 8 POOR 41 GEN GOOD
MAX LVORI EARLY 4 3 5
MAX LVORI LATE 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ068-192030-
NOBLE-
INCLUDING THE CITY OF CALDWELL
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 60 80
CHANCE OF THUNDER (%) 0 30 30
TEMP (24H TREND) 89 (-2) 63 (-1) 74
RH % (24H TREND) 45 (+2) 99 (+8) 63
WIND 20FT/EARLY(MPH) SW 6 G19 SW 5 G17 LGT/VAR
WIND 20FT/LATE(MPH) SW 10 G19 LGT/VAR N 7
PRECIP AMOUNT 0.00 0.07 0.21
PRECIP DURATION 1 7
PRECIP BEGIN 11 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1850 870
MIXING HGT(FT-AGL/MSL)6050 2850
TRANSPORT WND (MPH) SW 21 NW 14
VENT RATE (KT-FT) 108900 34200
CATEGORY DAY 5 3
INVERSION 73F/9AM 8PM 66F/8AM
DISPERSION 5 3
MAX ADI EARLY 75 GOOD 13 GEN POOR 27 FAIR
MAX ADI LATE 117 VERY GOOD7 POOR 44 GEN GOOD
MAX LVORI EARLY 4 3 6
MAX LVORI LATE 1 5 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ069-192030-
MONROE-
INCLUDING THE CITY OF WOODSFIELD
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 50 90
CHANCE OF THUNDER (%) 0 30 40
TEMP (24H TREND) 89 (-1) 64 (0) 75
RH % (24H TREND) 43 (-2) 94 (+5) 68
WIND 20FT/EARLY(MPH) SW 6 G20 SW 5 G18 LGT/VAR
WIND 20FT/LATE(MPH) SW 9 G20 LGT/VAR N 6
PRECIP AMOUNT 0.00 0.01 0.28
PRECIP DURATION 1 9
PRECIP BEGIN 12 AM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1730 1020
MIXING HGT(FT-AGL/MSL)5690 3340
TRANSPORT WND (MPH) SW 21 W 14
VENT RATE (KT-FT) 102420 40080
CATEGORY DAY 4 3
INVERSION 74F/9AM 8PM 68F/8AM
DISPERSION 4 3
MAX ADI EARLY 69 GOOD 13 GEN POOR 26 FAIR
MAX ADI LATE 128 VERY GOOD7 POOR 46 GEN GOOD
MAX LVORI EARLY 4 3 5
MAX LVORI LATE 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ007-192030-
MERCER-
INCLUDING THE CITIES OF SHARON, HERMITAGE, AND GROVE CITY
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 30 70 70
CHANCE OF THUNDER (%) 30 40 20
TEMP (24H TREND) 86 (-1) 57 (-9) 66
RH % (24H TREND) 49 (+3) 100 (+16) 58
WIND 20FT/EARLY(MPH) SW 7 G17 SW 9 G18 NW 8
WIND 20FT/LATE(MPH) SW 12 G21 SW 6 NW 9
PRECIP AMOUNT 0.00 0.09 0.07
PRECIP DURATION 1 4 1
PRECIP BEGIN 8 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 12 PM
MIXING HGT(M-AGL/MSL) 1440 800
MIXING HGT(FT-AGL/MSL)4720 2630
TRANSPORT WND (MPH) SW 22 N 16
VENT RATE (KT-FT) 89680 36820
CATEGORY DAY 4 3
INVERSION 74F/9AM 8PM 61F/7AM
DISPERSION 4 3
MAX ADI EARLY 57 GEN GOOD 25 FAIR 27 FAIR
MAX ADI LATE 88 GOOD 11 POOR 49 GEN GOOD
MAX LVORI EARLY 3 3 5
MAX LVORI LATE 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ008-192030-
VENANGO-
INCLUDING THE CITIES OF OIL CITY AND FRANKLIN
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 30 70 50
CHANCE OF THUNDER (%) 30 40 20
TEMP (24H TREND) 86 (-2) 58 (-7) 68
RH % (24H TREND) 49 (+5) 100 (+18) 55
WIND 20FT/EARLY(MPH) SW 6 G17 SW 7 G17 NW 6
WIND 20FT/LATE(MPH) SW 10 G19 SW 5 NW 7
PRECIP AMOUNT 0.00 0.07 0.06
PRECIP DURATION 1 4 1
PRECIP BEGIN 8 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 1 PM
MIXING HGT(M-AGL/MSL) 1480 970
MIXING HGT(FT-AGL/MSL)4860 3180
TRANSPORT WND (MPH) SW 22 N 15
VENT RATE (KT-FT) 92340 41340
CATEGORY DAY 4 3
INVERSION 73F/9AM 8PM 62F/7AM
DISPERSION 4 3
MAX ADI EARLY 80 GOOD 26 FAIR 25 FAIR
MAX ADI LATE 89 GOOD 8 POOR 56 GEN GOOD
MAX LVORI EARLY 4 3 5
MAX LVORI LATE 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ009-192030-
FOREST-
INCLUDING THE CITY OF TIONESTA
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 30 70 50
CHANCE OF THUNDER (%) 30 30 20
TEMP (24H TREND) 85 (-3) 59 (-4) 68
RH % (24H TREND) 47 (+8) 100 (+20) 50
WIND 20FT/EARLY(MPH) SW 5 G17 SW 5 G17 W 5
WIND 20FT/LATE(MPH) SW 9 G19 LGT/VAR NW 6
PRECIP AMOUNT 0.00 0.06 0.05
PRECIP DURATION 1 3 1
PRECIP BEGIN 8 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 12 PM
MIXING HGT(M-AGL/MSL) 1520 1010
MIXING HGT(FT-AGL/MSL)4990 3310
TRANSPORT WND (MPH) SW 23 N 15
VENT RATE (KT-FT) 99800 43030
CATEGORY DAY 4 3
INVERSION 73F/9AM 8PM 68F/8AM
DISPERSION 4 3
MAX ADI EARLY 87 GOOD 24 FAIR 23 FAIR
MAX ADI LATE 127 VERY GOOD8 POOR 58 GEN GOOD
MAX LVORI EARLY 4 3 5
MAX LVORI LATE 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ013-192030-
LAWRENCE-
INCLUDING THE CITIES OF NEW CASTLE AND ELLWOOD CITY
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 20 70 60
CHANCE OF THUNDER (%) 20 30 20
TEMP (24H TREND) 87 (-2) 61 (-4) 69
RH % (24H TREND) 47 (+4) 100 (+20) 55
WIND 20FT/EARLY(MPH) SW 6 G17 SW 7 G17 NW 6
WIND 20FT/LATE(MPH) SW 11 G18 SW 5 N 9
PRECIP AMOUNT 0.00 0.10 0.07
PRECIP DURATION 1 3 1
PRECIP BEGIN 9 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 12 PM
MIXING HGT(M-AGL/MSL) 1460 800
MIXING HGT(FT-AGL/MSL)4790 2610
TRANSPORT WND (MPH) SW 21 N 16
VENT RATE (KT-FT) 86220 36540
CATEGORY DAY 4 3
INVERSION 75F/9AM 8PM 62F/7AM
DISPERSION 4 3
MAX ADI EARLY 81 GOOD 24 FAIR 30 FAIR
MAX ADI LATE 84 GOOD 8 POOR 49 GEN GOOD
MAX LVORI EARLY 3 3 5
MAX LVORI LATE 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ014-192030-
BUTLER-
INCLUDING THE CITY OF BUTLER
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 20 70 60
CHANCE OF THUNDER (%) 20 30 20
TEMP (24H TREND) 87 (-1) 61 (-3) 71
RH % (24H TREND) 50 (+3) 100 (+18) 60
WIND 20FT/EARLY(MPH) SW 6 SW 7 G17 W 6
WIND 20FT/LATE(MPH) SW 11 G19 SW 5 NW 8
PRECIP AMOUNT 0.00 0.05 0.10
PRECIP DURATION 0 3 2
PRECIP BEGIN 11 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1560 790
MIXING HGT(FT-AGL/MSL)5120 2600
TRANSPORT WND (MPH) SW 21 N 15
VENT RATE (KT-FT) 92160 33800
CATEGORY DAY 4 3
INVERSION 75F/9AM 8PM 69F/8AM
DISPERSION 4 3
MAX ADI EARLY 91 GOOD 23 FAIR 30 FAIR
MAX ADI LATE 87 GOOD 8 POOR 44 GEN GOOD
MAX LVORI EARLY 4 3 5
MAX LVORI LATE 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ015-192030-
CLARION-
INCLUDING THE CITY OF CLARION
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 30 60 60
CHANCE OF THUNDER (%) 20 30 20
TEMP (24H TREND) 86 (-2) 62 (-2) 70
RH % (24H TREND) 48 (+5) 99 (+20) 54
WIND 20FT/EARLY(MPH) SW 6 G17 SW 6 G17 W 6
WIND 20FT/LATE(MPH) SW 10 G19 LGT/VAR NW 8
PRECIP AMOUNT 0.00 0.04 0.09
PRECIP DURATION 1 2 2
PRECIP BEGIN 8 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1510 860
MIXING HGT(FT-AGL/MSL)4970 2810
TRANSPORT WND (MPH) SW 21 N 15
VENT RATE (KT-FT) 89460 36530
CATEGORY DAY 4 3
INVERSION 74F/9AM 8PM 69F/8AM
DISPERSION 4 3
MAX ADI EARLY 89 GOOD 24 FAIR 28 FAIR
MAX ADI LATE 96 GOOD 8 POOR 51 GEN GOOD
MAX LVORI EARLY 4 3 5
MAX LVORI LATE 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ016-192030-
JEFFERSON PA-
INCLUDING THE CITIES OF PUNXSUTAWNEY AND BROOKVILLE
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 20 50 50
CHANCE OF THUNDER (%) 20 20 20
TEMP (24H TREND) 85 (-2) 64 (0) 72
RH % (24H TREND) 47 (+4) 90 (+11) 54
WIND 20FT/EARLY(MPH) SW 7 G18 SW 6 G18 W 7
WIND 20FT/LATE(MPH) SW 11 G20 SW 5 NW 8
PRECIP AMOUNT 0.00 0.02 0.12
PRECIP DURATION 1 2 3
PRECIP BEGIN 8 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1490 790
MIXING HGT(FT-AGL/MSL)4880 2600
TRANSPORT WND (MPH) SW 21 N 15
VENT RATE (KT-FT) 87840 33800
CATEGORY DAY 4 3
INVERSION 74F/9AM 8PM 69F/8AM
DISPERSION 4 3
MAX ADI EARLY 78 GOOD 25 FAIR 33 FAIR
MAX ADI LATE 91 GOOD 8 POOR 45 GEN GOOD
MAX LVORI EARLY 4 3 4
MAX LVORI LATE 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ020-192030-
BEAVER-
INCLUDING THE CITIES OF ALIQUIPPA, BEAVER FALLS, AMBRIDGE,
AND MONACA
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 20 70 70
CHANCE OF THUNDER (%) 20 30 30
TEMP (24H TREND) 88 (-1) 64 (-3) 71
RH % (24H TREND) 45 (+3) 99 (+21) 55
WIND 20FT/EARLY(MPH) SW 6 G17 SW 7 G17 W 6
WIND 20FT/LATE(MPH) SW 11 G19 LGT/VAR N 8
PRECIP AMOUNT 0.00 0.02 0.13
PRECIP DURATION 0 2 4
PRECIP BEGIN 12 PM 8 PM CONTINUING
PRECIP END 3 PM CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1730 800
MIXING HGT(FT-AGL/MSL)5660 2630
TRANSPORT WND (MPH) SW 22 N 15
VENT RATE (KT-FT) 107540 34190
CATEGORY DAY 5 3
INVERSION 75F/9AM 8PM 70F/8AM
DISPERSION 5 3
MAX ADI EARLY 94 GOOD 13 GEN POOR 32 FAIR
MAX ADI LATE 94 GOOD 8 POOR 44 GEN GOOD
MAX LVORI EARLY 3 3 5
MAX LVORI LATE 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ021-192030-
ALLEGHENY-
INCLUDING THE CITY OF PITTSBURGH METRO AREA
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 20 60 90
CHANCE OF THUNDER (%) 20 30 30
TEMP (24H TREND) 88 (-2) 66 (0) 75
RH % (24H TREND) 45 (+1) 91 (+13) 60
WIND 20FT/EARLY(MPH) SW 8 G19 SW 8 G18 W 7
WIND 20FT/LATE(MPH) SW 12 G20 SW 5 NW 9
PRECIP AMOUNT 0.00 0.01 0.16
PRECIP DURATION 0 2 5
PRECIP BEGIN 12 PM 7 PM CONTINUING
PRECIP END 5 PM CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1730 810
MIXING HGT(FT-AGL/MSL)5690 2670
TRANSPORT WND (MPH) SW 21 N 15
VENT RATE (KT-FT) 102420 34710
CATEGORY DAY 4 3
INVERSION 76F/9AM 8PM 70F/8AM
DISPERSION 4 3
MAX ADI EARLY 85 GOOD 25 FAIR 30 FAIR
MAX ADI LATE 90 GOOD 8 POOR 42 GEN GOOD
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ022-192030-
ARMSTRONG-
INCLUDING THE CITIES OF KITTANNING AND FORD CITY
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE SHOWERS TSTMS TSTMS
CHANCE PRECIP (%) 20 60 70
CHANCE OF THUNDER (%) 0 30 30
TEMP (24H TREND) 87 (-2) 64 (0) 73
RH % (24H TREND) 49 (+2) 95 (+7) 60
WIND 20FT/EARLY(MPH) SW 6 G17 SW 6 W 6
WIND 20FT/LATE(MPH) SW 10 G19 LGT/VAR NW 8
PRECIP AMOUNT 0.00 0.01 0.14
PRECIP DURATION 0 2 4
PRECIP BEGIN 11 AM 6 PM CONTINUING
PRECIP END 5 PM CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1610 820
MIXING HGT(FT-AGL/MSL)5290 2680
TRANSPORT WND (MPH) SW 21 N 16
VENT RATE (KT-FT) 95220 37520
CATEGORY DAY 4 3
INVERSION 74F/9AM 8PM 69F/8AM
DISPERSION 4 3
MAX ADI EARLY 90 GOOD 11 POOR 33 FAIR
MAX ADI LATE 86 GOOD 8 POOR 46 GEN GOOD
MAX LVORI EARLY 4 3 5
MAX LVORI LATE 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ029-192030-
WASHINGTON-
INCLUDING THE CITIES OF WASHINGTON AND CANONSBURG
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 10 50 80
CHANCE OF THUNDER (%) 10 30 40
TEMP (24H TREND) 87 (-3) 65 (-1) 74
RH % (24H TREND) 46 (+3) 89 (+8) 62
WIND 20FT/EARLY(MPH) SW 8 G19 SW 7 G17 SW 7
WIND 20FT/LATE(MPH) SW 12 G20 SW 5 NW 9
PRECIP AMOUNT 0.00 0.01 0.21
PRECIP DURATION 0 1 9
PRECIP BEGIN 10 AM 1 AM CONTINUING
PRECIP END 2 PM CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1670 740
MIXING HGT(FT-AGL/MSL)5480 2440
TRANSPORT WND (MPH) SW 22 N 15
VENT RATE (KT-FT) 104120 31720
CATEGORY DAY 5 3
INVERSION 75F/9AM 8PM 70F/8AM
DISPERSION 5 3
MAX ADI EARLY 80 GOOD 12 POOR 29 FAIR
MAX ADI LATE 90 GOOD 8 POOR 41 GEN GOOD
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ031-192030-
GREENE-
INCLUDING THE CITY OF WAYNESBURG
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 30 90
CHANCE OF THUNDER (%) 0 20 40
TEMP (24H TREND) 88 (-2) 66 (+2) 76
RH % (24H TREND) 45 (-2) 84 (0) 72
WIND 20FT/EARLY(MPH) SW 7 G19 SW 5 SW 6
WIND 20FT/LATE(MPH) SW 9 G19 LGT/VAR NW 7
PRECIP AMOUNT 0.00 0.00 0.35
PRECIP DURATION 0 9
PRECIP BEGIN 2 AM 6 AM
PRECIP END 5 AM CONTINUING
MIXING HGT(M-AGL/MSL) 1700 780
MIXING HGT(FT-AGL/MSL)5570 2560
TRANSPORT WND (MPH) SW 20 W 15
VENT RATE (KT-FT) 94690 33280
CATEGORY DAY 4 3
INVERSION 76F/9AM 8PM 70F/8AM
DISPERSION 4 3
MAX ADI EARLY 81 GOOD 13 GEN POOR 33 FAIR
MAX ADI LATE 111 VERY GOOD7 POOR 41 GEN GOOD
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 4 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ073-192030-
WESTMORELAND-
INCLUDING THE CITIES OF MURRYSVILLE, GREENSBURG, NEW KENSINGTON,
LOWER BURRELL, LATROBE, AND MONESSEN
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 20 50 90
CHANCE OF THUNDER (%) 20 20 40
TEMP (24H TREND) 88 (-2) 65 (+1) 75
RH % (24H TREND) 49 (+2) 91 (+7) 69
WIND 20FT/EARLY(MPH) SW 9 G18 SW 7 G17 SW 8
WIND 20FT/LATE(MPH) SW 12 G20 SW 5 NW 8
PRECIP AMOUNT 0.00 0.01 0.23
PRECIP DURATION 0 1 8
PRECIP BEGIN 12 PM 7 PM CONTINUING
PRECIP END 5 PM CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1640 870
MIXING HGT(FT-AGL/MSL)5380 2840
TRANSPORT WND (MPH) SW 21 N 14
VENT RATE (KT-FT) 96840 34080
CATEGORY DAY 4 3
INVERSION 75F/9AM 7PM 69F/8AM
DISPERSION 4 3
MAX ADI EARLY 85 GOOD 11 POOR 33 FAIR
MAX ADI LATE 88 GOOD 8 POOR 46 GEN GOOD
MAX LVORI EARLY 4 3 5
MAX LVORI LATE 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ074-192030-
HIGHER ELEVATIONS OF WESTMORELAND-
INCLUDING THE CITIES OF LIGONIER AND DONEGAL
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 40 100
CHANCE OF THUNDER (%) 0 20 40
TEMP (24H TREND) 88 (-1) 67 (+2) 75
RH % (24H TREND) 45 (+4) 82 (+3) 70
WIND 20FT/EARLY(MPH) SW 7 G19 SW 5 SW 7 G18
WIND 20FT/LATE(MPH) SW 10 G20 LGT/VAR NW 7 G17
PRECIP AMOUNT 0.00 0.00 0.24
PRECIP DURATION 1 10
PRECIP BEGIN 10 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1410 880
MIXING HGT(FT-AGL/MSL)4640 2890
TRANSPORT WND (MPH) W 23 NW 15
VENT RATE (KT-FT) 92800 37570
CATEGORY DAY 4 3
INVERSION 75F/9AM 8PM 70F/8AM
DISPERSION 4 3
MAX ADI EARLY 94 GOOD 20 GEN POOR 42 GEN GOOD
MAX ADI LATE 102 VERY GOOD8 POOR 47 GEN GOOD
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ075-192030-
FAYETTE-
INCLUDING THE CITY OF UNIONTOWN
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 30 90
CHANCE OF THUNDER (%) 0 20 40
TEMP (24H TREND) 88 (-2) 65 (0) 76
RH % (24H TREND) 46 (+2) 88 (+9) 70
WIND 20FT/EARLY(MPH) SW 7 G17 SW 5 SW 6
WIND 20FT/LATE(MPH) SW 9 G18 LGT/VAR NW 7
PRECIP AMOUNT 0.00 0.00 0.38
PRECIP DURATION 1 8
PRECIP BEGIN 2 AM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1630 810
MIXING HGT(FT-AGL/MSL)5350 2650
TRANSPORT WND (MPH) SW 20 W 14
VENT RATE (KT-FT) 90950 31800
CATEGORY DAY 4 3
INVERSION 75F/9AM 7PM 70F/8AM
DISPERSION 4 3
MAX ADI EARLY 80 GOOD 10 POOR 38 FAIR
MAX ADI LATE 84 GOOD 8 POOR 40 FAIR
MAX LVORI EARLY 4 3 4
MAX LVORI LATE 1 4 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ076-192030-
HIGHER ELEVATIONS OF FAYETTE-
INCLUDING THE CITIES OF CHAMPION AND OHIOPYLE
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 30 100
CHANCE OF THUNDER (%) 0 20 40
TEMP (24H TREND) 86 (-1) 64 (-1) 75
RH % (24H TREND) 45 (0) 84 (+2) 68
WIND 20FT/EARLY(MPH) SW 6 G17 LGT/VAR SW 5
WIND 20FT/LATE(MPH) SW 7 G18 LGT/VAR NW 6
PRECIP AMOUNT 0.00 0.00 0.29
PRECIP DURATION 1 8
PRECIP BEGIN 2 AM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1450 810
MIXING HGT(FT-AGL/MSL)4740 2670
TRANSPORT WND (MPH) SW 20 W 16
VENT RATE (KT-FT) 80580 37380
CATEGORY DAY 4 3
INVERSION 75F/9AM 8PM 70F/8AM
DISPERSION 4 3
MAX ADI EARLY 85 GOOD 9 POOR 46 GEN GOOD
MAX ADI LATE 107 VERY GOOD8 POOR 42 GEN GOOD
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 4 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ077-192030-
INDIANA-
INCLUDING THE CITY OF INDIANA
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE SHOWERS TSTMS TSTMS
CHANCE PRECIP (%) 20 60 60
CHANCE OF THUNDER (%) 0 20 30
TEMP (24H TREND) 87 (-2) 65 (+1) 74
RH % (24H TREND) 48 (+4) 88 (+8) 64
WIND 20FT/EARLY(MPH) SW 7 G19 SW 6 G18 SW 7 G17
WIND 20FT/LATE(MPH) SW 11 G20 SW 5 NW 8
PRECIP AMOUNT 0.00 0.01 0.15
PRECIP DURATION 0 1 6
PRECIP BEGIN 12 PM 8 PM CONTINUING
PRECIP END 2 PM CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1510 840
MIXING HGT(FT-AGL/MSL)4950 2750
TRANSPORT WND (MPH) SW 20 NW 16
VENT RATE (KT-FT) 84150 38500
CATEGORY DAY 4 3
INVERSION 74F/9AM 8PM 69F/8AM
DISPERSION 4 3
MAX ADI EARLY 82 GOOD 11 POOR 36 FAIR
MAX ADI LATE 90 GOOD 8 POOR 47 GEN GOOD
MAX LVORI EARLY 4 3 4
MAX LVORI LATE 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ078-192030-
HIGHER ELEVATIONS OF INDIANA-
INCLUDING THE CITY OF ARMAGH
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 60 80
CHANCE OF THUNDER (%) 0 20 30
TEMP (24H TREND) 86 (-3) 66 (+1) 75
RH % (24H TREND) 47 (+6) 84 (+7) 69
WIND 20FT/EARLY(MPH) SW 7 G19 SW 6 G17 W 8 G17
WIND 20FT/LATE(MPH) SW 11 G21 SW 5 NW 8 G17
PRECIP AMOUNT 0.00 0.01 0.17
PRECIP DURATION 1 7
PRECIP BEGIN 10 PM CONTINUING
PRECIP END CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1470 870
MIXING HGT(FT-AGL/MSL)4840 2850
TRANSPORT WND (MPH) SW 21 NW 15
VENT RATE (KT-FT) 87120 37050
CATEGORY DAY 4 3
INVERSION 75F/9AM 8PM 69F/8AM
DISPERSION 4 3
MAX ADI EARLY 79 GOOD 11 POOR 33 FAIR
MAX ADI LATE 90 GOOD 8 POOR 48 GEN GOOD
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ001-192030-
HANCOCK-
INCLUDING THE CITY OF WEIRTON
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 20 70 70
CHANCE OF THUNDER (%) 20 30 30
TEMP (24H TREND) 88 (-1) 64 (-1) 71
RH % (24H TREND) 43 (+1) 98 (+15) 54
WIND 20FT/EARLY(MPH) SW 7 G18 SW 7 G17 W 6
WIND 20FT/LATE(MPH) SW 11 G19 SW 5 N 8
PRECIP AMOUNT 0.00 0.02 0.14
PRECIP DURATION 0 2 5
PRECIP BEGIN 10 AM 6 PM CONTINUING
PRECIP END 2 PM CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1730 840
MIXING HGT(FT-AGL/MSL)5660 2770
TRANSPORT WND (MPH) SW 22 N 15
VENT RATE (KT-FT) 107540 36010
CATEGORY DAY 5 3
INVERSION 75F/9AM 8PM 70F/8AM
DISPERSION 5 3
MAX ADI EARLY 80 GOOD 14 GEN POOR 30 FAIR
MAX ADI LATE 95 GOOD 8 POOR 45 GEN GOOD
MAX LVORI EARLY 3 3 5
MAX LVORI LATE 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ002-192030-
BROOKE-
INCLUDING THE CITIES OF FOLLANSBEE AND WELLSBURG
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 20 60 80
CHANCE OF THUNDER (%) 20 30 30
TEMP (24H TREND) 88 (-2) 66 (-2) 73
RH % (24H TREND) 44 (+2) 89 (+13) 56
WIND 20FT/EARLY(MPH) SW 7 G19 SW 8 G17 W 6
WIND 20FT/LATE(MPH) SW 11 G20 SW 5 N 8
PRECIP AMOUNT 0.00 0.02 0.16
PRECIP DURATION 0 1 6
PRECIP BEGIN 10 AM 11 PM CONTINUING
PRECIP END 2 PM CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 1730 780
MIXING HGT(FT-AGL/MSL)5680 2570
TRANSPORT WND (MPH) SW 22 N 14
VENT RATE (KT-FT) 107920 30840
CATEGORY DAY 5 3
INVERSION 75F/9AM 8PM 70F/8AM
DISPERSION 5 3
MAX ADI EARLY 77 GOOD 12 POOR 30 FAIR
MAX ADI LATE 94 GOOD 8 POOR 40 FAIR
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ003-192030-
OHIO-
INCLUDING THE CITY OF WHEELING
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 20 50 70
CHANCE OF THUNDER (%) 20 30 30
TEMP (24H TREND) 88 (-2) 65 (-1) 73
RH % (24H TREND) 44 (+6) 88 (+3) 64
WIND 20FT/EARLY(MPH) SW 8 G19 SW 8 G17 W 6
WIND 20FT/LATE(MPH) SW 11 G20 SW 5 N 8
PRECIP AMOUNT 0.00 0.01 0.17
PRECIP DURATION 0 1 10
PRECIP BEGIN 10 AM 12 AM CONTINUING
PRECIP END 2 PM CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1640 710
MIXING HGT(FT-AGL/MSL)5380 2330
TRANSPORT WND (MPH) SW 22 N 14
VENT RATE (KT-FT) 102220 27960
CATEGORY DAY 5 3
INVERSION 75F/9AM 8PM 69F/8AM
DISPERSION 5 3
MAX ADI EARLY 69 GOOD 12 POOR 28 FAIR
MAX ADI LATE 89 GOOD 8 POOR 40 FAIR
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ004-192030-
MARSHALL-
INCLUDING THE CITY OF MOUNDSVILLE
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 50 80
CHANCE OF THUNDER (%) 0 20 40
TEMP (24H TREND) 88 (-2) 67 (0) 74
RH % (24H TREND) 46 (+1) 84 (+2) 69
WIND 20FT/EARLY(MPH) SW 7 G19 SW 6 G17 SW 5
WIND 20FT/LATE(MPH) SW 10 G20 LGT/VAR NW 7
PRECIP AMOUNT 0.00 0.00 0.30
PRECIP DURATION 1 10
PRECIP BEGIN 1 AM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1710 870
MIXING HGT(FT-AGL/MSL)5610 2840
TRANSPORT WND (MPH) SW 20 W 14
VENT RATE (KT-FT) 95370 34080
CATEGORY DAY 4 3
INVERSION 75F/9AM 8PM 70F/8AM
DISPERSION 4 3
MAX ADI EARLY 74 GOOD 13 GEN POOR 28 FAIR
MAX ADI LATE 123 VERY GOOD7 POOR 41 GEN GOOD
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ012-192030-
WETZEL-
INCLUDING THE CITY OF NEW MARTINSVILLE
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 30 90
CHANCE OF THUNDER (%) 0 20 40
TEMP (24H TREND) 88 (-2) 68 (+1) 76
RH % (24H TREND) 44 (-1) 82 (+4) 74
WIND 20FT/EARLY(MPH) SW 5 G18 SW 5 SW 5
WIND 20FT/LATE(MPH) SW 9 G19 LGT/VAR NW 6
PRECIP AMOUNT 0.00 0.00 0.32
PRECIP DURATION 0 10
PRECIP BEGIN 1 AM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1890 950
MIXING HGT(FT-AGL/MSL)6200 3110
TRANSPORT WND (MPH) SW 21 W 13
VENT RATE (KT-FT) 111600 34210
CATEGORY DAY 5 3
INVERSION 75F/9AM 8PM 70F/8AM
DISPERSION 5 3
MAX ADI EARLY 78 GOOD 13 GEN POOR 29 FAIR
MAX ADI LATE 133 VERY GOOD6 VERY POOR 43 GEN GOOD
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 4 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ021-192030-
MARION-
INCLUDING THE CITY OF FAIRMONT
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 20 100
CHANCE OF THUNDER (%) 0 20 50
TEMP (24H TREND) 89 (-1) 66 (+3) 77
RH % (24H TREND) 43 (-1) 84 (-4) 71
WIND 20FT/EARLY(MPH) SW 5 G17 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) SW 9 G18 LGT/VAR NW 6
PRECIP AMOUNT 0.00 0.00 0.28
PRECIP DURATION 0 8
PRECIP BEGIN 1 AM 6 AM
PRECIP END 5 AM CONTINUING
MIXING HGT(M-AGL/MSL) 1910 880
MIXING HGT(FT-AGL/MSL)6270 2890
TRANSPORT WND (MPH) SW 18 W 13
VENT RATE (KT-FT) 100320 31790
CATEGORY DAY 4 3
INVERSION 74F/9AM 8PM 69F/8AM
DISPERSION 4 3
MAX ADI EARLY 101 VERY GOOD23 FAIR 38 FAIR
MAX ADI LATE 130 VERY GOOD6 VERY POOR 38 FAIR
MAX LVORI EARLY 4 3 4
MAX LVORI LATE 1 4 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ509-192030-
MONONGALIA-
INCLUDING THE CITY OF MORGANTOWN
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 20 100
CHANCE OF THUNDER (%) 0 20 50
TEMP (24H TREND) 88 (-2) 67 (+1) 77
RH % (24H TREND) 44 (-2) 83 (+3) 70
WIND 20FT/EARLY(MPH) SW 6 G17 LGT/VAR SW 5
WIND 20FT/LATE(MPH) SW 9 G18 LGT/VAR NW 6
PRECIP AMOUNT 0.00 0.00 0.30
PRECIP DURATION 1 8
PRECIP BEGIN 1 AM 6 AM
PRECIP END 5 AM CONTINUING
MIXING HGT(M-AGL/MSL) 1790 800
MIXING HGT(FT-AGL/MSL)5870 2620
TRANSPORT WND (MPH) SW 20 W 13
VENT RATE (KT-FT) 99790 28820
CATEGORY DAY 5 3
INVERSION 75F/9AM 8PM 70F/8AM
DISPERSION 5 3
MAX ADI EARLY 93 GOOD 24 FAIR 35 FAIR
MAX ADI LATE 123 VERY GOOD6 VERY POOR 37 FAIR
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 4 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ510-192030-
RIDGES OF EASTERN MONONGALIA AND NORTHWESTERN PRESTON-
INCLUDING THE CITY OF COOPERS ROCK
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 20 100
CHANCE OF THUNDER (%) 0 20 50
TEMP (24H TREND) 86 (-1) 64 (-1) 76
RH % (24H TREND) 44 (-3) 82 (+1) 67
WIND 20FT/EARLY(MPH) SW 5 LGT/VAR SW 5
WIND 20FT/LATE(MPH) SW 7 G17 LGT/VAR NW 6
PRECIP AMOUNT 0.00 0.00 0.30
PRECIP DURATION 1 7
PRECIP BEGIN 2 AM 6 AM
PRECIP END 5 AM CONTINUING
MIXING HGT(M-AGL/MSL) 1580 880
MIXING HGT(FT-AGL/MSL)5170 2880
TRANSPORT WND (MPH) SW 18 W 15
VENT RATE (KT-FT) 82720 37440
CATEGORY DAY 4 3
INVERSION 74F/9AM 8PM 69F/8AM
DISPERSION 4 3
MAX ADI EARLY 83 GOOD 12 POOR 41 GEN GOOD
MAX ADI LATE 108 VERY GOOD6 VERY POOR 43 GEN GOOD
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 4 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ511-192030-
PRESTON-
INCLUDING THE CITIES OF KINGWOOD AND BRUCETON MILLS
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 20 100
CHANCE OF THUNDER (%) 0 20 50
TEMP (24H TREND) 86 (-2) 65 (+2) 76
RH % (24H TREND) 44 (-2) 82 (-7) 65
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) SW 7 LGT/VAR W 6
PRECIP AMOUNT 0.00 0.00 0.26
PRECIP DURATION 0 7
PRECIP BEGIN 2 AM 6 AM
PRECIP END 5 AM CONTINUING
MIXING HGT(M-AGL/MSL) 1560 940
MIXING HGT(FT-AGL/MSL)5130 3090
TRANSPORT WND (MPH) SW 17 W 15
VENT RATE (KT-FT) 76950 40170
CATEGORY DAY 4 3
INVERSION 75F/9AM 8PM 70F/8AM
DISPERSION 4 3
MAX ADI EARLY 86 GOOD 10 POOR 47 GEN GOOD
MAX ADI LATE 117 VERY GOOD5 VERY POOR 49 GEN GOOD
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ512-192030-
EASTERN PRESTON-
INCLUDING THE CITIES OF TERRA ALTA, ROWLESBURG, AND HAZELTON
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 90
CHANCE OF THUNDER (%) 0 0 50
TEMP (24H TREND) 85 (-1) 64 (+1) 76
RH % (24H TREND) 44 (-4) 79 (-5) 65
WIND 20FT/EARLY(MPH) SW 5 G17 LGT/VAR SW 6
WIND 20FT/LATE(MPH) W 8 G17 LGT/VAR W 7
PRECIP AMOUNT 0.00 0.00 0.22
PRECIP DURATION 7
PRECIP BEGIN 6 AM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1550 1030
MIXING HGT(FT-AGL/MSL)5090 3390
TRANSPORT WND (MPH) W 18 W 17
VENT RATE (KT-FT) 81440 50850
CATEGORY DAY 4 4
INVERSION 73F/9AM 8PM 69F/8AM
DISPERSION 4 4
MAX ADI EARLY 97 GOOD 15 GEN POOR 58 GEN GOOD
MAX ADI LATE 118 VERY GOOD5 VERY POOR 57 GEN GOOD
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 4 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ513-192030-
WESTERN TUCKER-
INCLUDING THE CITIES OF PARSONS, HENDRICKS, AND SAINT GEORGE
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 90
CHANCE OF THUNDER (%) 0 0 50
TEMP (24H TREND) 86 (-3) 64 (+1) 78
RH % (24H TREND) 41 (-1) 77 (-7) 61
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 7 G17 LGT/VAR W 6
PRECIP AMOUNT 0.00 0.00 0.20
PRECIP DURATION 6
PRECIP BEGIN 7 AM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1620 1200
MIXING HGT(FT-AGL/MSL)5310 3950
TRANSPORT WND (MPH) W 17 W 17
VENT RATE (KT-FT) 79650 59250
CATEGORY DAY 4 4
INVERSION 72F/9AM 8PM 69F/8AM
DISPERSION 4 4
MAX ADI EARLY 104 VERY GOOD10 POOR 62 GOOD
MAX ADI LATE 121 VERY GOOD5 VERY POOR 64 GOOD
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 3 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ514-192030-
EASTERN TUCKER-
INCLUDING THE CITIES OF DAVIS, THOMAS, AND CANAAN VALLEY
232 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 90
CHANCE OF THUNDER (%) 0 0 50
TEMP (24H TREND) 82 (-3) 63 (+3) 75
RH % (24H TREND) 44 (-3) 76 (-11) 61
WIND 20FT/EARLY(MPH) W 6 G23 SW 5 G17 W 7 G23
WIND 20FT/LATE(MPH) W 8 G22 LGT/VAR W 8 G22
PRECIP AMOUNT 0.00 0.00 0.11
PRECIP DURATION 6
PRECIP BEGIN 9 AM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1510 1300
MIXING HGT(FT-AGL/MSL)4960 4260
TRANSPORT WND (MPH) W 22 W 20
VENT RATE (KT-FT) 94240 72420
CATEGORY DAY 4 4
INVERSION 68F/8AM 8PM 67F/8AM
DISPERSION 4 4
MAX ADI EARLY 104 VERY GOOD24 FAIR 69 GOOD
MAX ADI LATE 122 VERY GOOD10 POOR 73 GOOD
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 3 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS. LOWS IN THE UPPER
40S. HIGHS IN THE UPPER 60S. NORTH WINDS AROUND 5 MPH.
FRIDAY
SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 60S.
EAST WINDS 5 TO 10 MPH.
SATURDAY
SHOWERS AND A CHANCE OF THUNDERSTORMS. LOWS IN THE
MID 50S. HIGHS IN THE LOWER 70S. SOUTH WINDS 15 TO 20 MPH.
SUNDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE UPPER 70S.
SOUTHWEST WINDS 10 TO 15 MPH.
MONDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE UPPER 50S. HIGHS IN THE UPPER 70S. SOUTH WINDS AROUND
5 MPH.
CL
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