213
FNUS51 KPBZ 150538
FWFPBZ
FIRE WEATHER PLANNING FORECAST
NATIONAL WEATHER SERVICE PITTSBURGH PA
138 AM EDT FRI MAY 15 2026
DISCUSSION
HIGH PRESSURE WILL PROMOTE GENERALLY CLEAR MORNING SKIES THAT SEE
CUMULUS BUILD UP THROUGH THE DAY, DRY WEATHER, AND TEMPERATURE
RISING NEAR SEASONAL AVERAGES. MINIMUM HUMIDITIES COULD FALL INTO
THE LOWER 30S, MOST LIKELY ACROSS SOUTHEASTERN OHIO, BUT GENERALLY
LIGHT WEST TO NORTHWEST WINDS PRECLUDE FIRE WEATHER CONCERNS.
TEMPERATURE CONTINUES TO RISE SATURDAY BUT WEAK SHORTWAVE MOVEMENT
WITHIN ZONAL FLOW MAY RESULT IN A DECAYING STORM CLUSTER REACHING
EASTERN OHIO DURING THE MORNING THAT THEN SEES RENEWED AFTERNOON
DEVELOPMENT WHILE REACHING THE REST OF THE FORECAST AREA.
ADDITIONAL ISOLATED TO SCATTERED THUNDERSTORMS ARE POSSIBLE SUNDAY
AFTERNOON, OTHERWISE THE TRENDS FOR RISING TEMPERATURE CONTINUE AS
A EASTERN CONUS RIDGE PATTERN DEVELOPS.
OHZ039-152030-
TUSCARAWAS-
INCLUDING THE CITIES OF NEW PHILADELPHIA AND DOVER
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 80
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 68 (+8) 50 (+9) 78
RH % (24H TREND) 35 (-6) 68 (-15) 49
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR S 7 G18
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR SW 11 G20
PRECIP AMOUNT 0.00 0.00 0.06
PRECIP DURATION 4
PRECIP BEGIN 10 AM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1640 1200
MIXING HGT(FT-AGL/MSL)5370 3950
TRANSPORT WND (MPH) W 9 SW 22
VENT RATE (KT-FT) 42960 75050
CATEGORY DAY 3 4
INVERSION 51F/9AM 8PM 61F/9AM
DISPERSION 3 4
MAX ADI EARLY 35 FAIR 5 VERY POOR 41 GEN GOOD
MAX ADI LATE 63 GOOD 5 VERY POOR 80 GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ040-152030-
CARROLL-
INCLUDING THE CITIES OF CARROLLTON AND MALVERN
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 70
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 67 (+8) 50 (+10) 77
RH % (24H TREND) 36 (-1) 69 (-11) 47
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR S 8 G17
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR SW 12 G20
PRECIP AMOUNT 0.00 0.00 0.05
PRECIP DURATION 4
PRECIP BEGIN 10 AM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1630 1230
MIXING HGT(FT-AGL/MSL)5350 4040
TRANSPORT WND (MPH) W 9 SW 22
VENT RATE (KT-FT) 42800 76760
CATEGORY DAY 3 4
INVERSION 51F/9AM 7PM 60F/9AM
DISPERSION 3 4
MAX ADI EARLY 40 FAIR 5 VERY POOR 41 GEN GOOD
MAX ADI LATE 66 GOOD 5 VERY POOR 80 GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ041-152030-
COLUMBIANA-
INCLUDING THE CITIES OF EAST LIVERPOOL, SALEM, AND COLUMBIANA
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 60
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 67 (+9) 49 (+8) 77
RH % (24H TREND) 37 (-2) 71 (-11) 47
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR S 7 G17
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR SW 11 G20
PRECIP AMOUNT 0.00 0.00 0.06
PRECIP DURATION 4
PRECIP BEGIN 10 AM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1650 1120
MIXING HGT(FT-AGL/MSL)5410 3660
TRANSPORT WND (MPH) W 9 SW 20
VENT RATE (KT-FT) 43280 62220
CATEGORY DAY 3 4
INVERSION 51F/9AM 8PM 64F/10AM
DISPERSION 3 4
MAX ADI EARLY 49 GEN GOOD 6 VERY POOR 48 GEN GOOD
MAX ADI LATE 66 GOOD 5 VERY POOR 75 GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ048-152030-
COSHOCTON-
INCLUDING THE CITY OF COSHOCTON
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 80
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 69 (+9) 50 (+10) 78
RH % (24H TREND) 35 (-6) 67 (-16) 51
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR S 5
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR SW 9 G19
PRECIP AMOUNT 0.00 0.00 0.06
PRECIP DURATION 5
PRECIP BEGIN 10 AM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1650 1230
MIXING HGT(FT-AGL/MSL)5430 4030
TRANSPORT WND (MPH) W 9 SW 22
VENT RATE (KT-FT) 43440 76570
CATEGORY DAY 3 4
INVERSION 52F/9AM 8PM 61F/9AM
DISPERSION 3 4
MAX ADI EARLY 30 FAIR 6 VERY POOR 45 GEN GOOD
MAX ADI LATE 64 GOOD 5 VERY POOR 81 GOOD
MAX LVORI EARLY 5 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ049-152030-
HARRISON-
INCLUDING THE CITY OF CADIZ
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 60
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 68 (+9) 50 (+9) 78
RH % (24H TREND) 34 (-4) 70 (-12) 47
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR S 7 G18
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR SW 11 G21
PRECIP AMOUNT 0.00 0.00 0.03
PRECIP DURATION 4
PRECIP BEGIN 11 AM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1660 1230
MIXING HGT(FT-AGL/MSL)5440 4030
TRANSPORT WND (MPH) W 9 SW 22
VENT RATE (KT-FT) 43520 76570
CATEGORY DAY 3 4
INVERSION 51F/9AM 8PM 61F/9AM
DISPERSION 3 4
MAX ADI EARLY 36 FAIR 5 VERY POOR 47 GEN GOOD
MAX ADI LATE 61 GOOD 5 VERY POOR 81 GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ050-152030-
JEFFERSON OH-
INCLUDING THE CITY OF STEUBENVILLE
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 60
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 68 (+10) 49 (+8) 78
RH % (24H TREND) 35 (0) 70 (-9) 45
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR S 6 G17
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR SW 11 G21
PRECIP AMOUNT 0.00 0.00 0.03
PRECIP DURATION 3
PRECIP BEGIN 12 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1710 1230
MIXING HGT(FT-AGL/MSL)5610 4040
TRANSPORT WND (MPH) W 9 SW 22
VENT RATE (KT-FT) 44880 76760
CATEGORY DAY 3 4
INVERSION 51F/9AM 8PM 60F/9AM
DISPERSION 3 4
MAX ADI EARLY 48 GEN GOOD 6 VERY POOR 48 GEN GOOD
MAX ADI LATE 67 GOOD 5 VERY POOR 78 GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ057-152030-
MUSKINGUM-
INCLUDING THE CITY OF ZANESVILLE
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 60
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 70 (+9) 51 (+10) 79
RH % (24H TREND) 31 (-7) 65 (-25) 48
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR S 5 G17
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR SW 9 G20
PRECIP AMOUNT 0.00 0.00 0.08
PRECIP DURATION 4
PRECIP BEGIN 10 AM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1640 1210
MIXING HGT(FT-AGL/MSL)5370 3980
TRANSPORT WND (MPH) W 8 SW 22
VENT RATE (KT-FT) 37590 75620
CATEGORY DAY 3 4
INVERSION 52F/9AM 8PM 62F/9AM
DISPERSION 3 4
MAX ADI EARLY 31 FAIR 5 VERY POOR 43 GEN GOOD
MAX ADI LATE 61 GOOD 5 VERY POOR 80 GOOD
MAX LVORI EARLY 5 3 2
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ058-152030-
GUERNSEY-
INCLUDING THE CITY OF CAMBRIDGE
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 60
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 70 (+10) 51 (+10) 79
RH % (24H TREND) 33 (-8) 68 (-18) 48
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR S 6 G17
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR SW 9 G20
PRECIP AMOUNT 0.00 0.00 0.06
PRECIP DURATION 4
PRECIP BEGIN 10 AM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1630 1140
MIXING HGT(FT-AGL/MSL)5350 3740
TRANSPORT WND (MPH) W 7 SW 21
VENT RATE (KT-FT) 32100 67320
CATEGORY DAY 3 4
INVERSION 51F/9AM 8PM 62F/9AM
DISPERSION 3 4
MAX ADI EARLY 35 FAIR 4 VERY POOR 44 GEN GOOD
MAX ADI LATE 55 GEN GOOD 5 VERY POOR 74 GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ059-152030-
BELMONT-
INCLUDING THE CITIES OF MARTINS FERRY AND ST. CLAIRSVILLE
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 50
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 69 (+11) 50 (+10) 79
RH % (24H TREND) 34 (-13) 71 (-17) 45
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR S 7 G18
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR SW 11 G21
PRECIP AMOUNT 0.00 0.00 0.01
PRECIP DURATION 1
PRECIP BEGIN 11 AM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1660 1130
MIXING HGT(FT-AGL/MSL)5440 3710
TRANSPORT WND (MPH) W 8 SW 22
VENT RATE (KT-FT) 38080 70490
CATEGORY DAY 3 4
INVERSION 52F/9AM 8PM 61F/9AM
DISPERSION 3 4
MAX ADI EARLY 40 FAIR 5 VERY POOR 48 GEN GOOD
MAX ADI LATE 59 GEN GOOD 5 VERY POOR 76 GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ068-152030-
NOBLE-
INCLUDING THE CITY OF CALDWELL
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 60
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 71 (+11) 50 (+9) 80
RH % (24H TREND) 29 (-12) 70 (-24) 44
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR S 5 G17
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR SW 9 G19
PRECIP AMOUNT 0.00 0.00 0.03
PRECIP DURATION 4
PRECIP BEGIN 11 AM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1680 1180
MIXING HGT(FT-AGL/MSL)5500 3870
TRANSPORT WND (MPH) W 8 SW 21
VENT RATE (KT-FT) 38500 69660
CATEGORY DAY 3 4
INVERSION 51F/9AM 8PM 61F/9AM
DISPERSION 3 4
MAX ADI EARLY 35 FAIR 4 VERY POOR 50 GEN GOOD
MAX ADI LATE 54 GEN GOOD 5 VERY POOR 78 GOOD
MAX LVORI EARLY 5 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ069-152030-
MONROE-
INCLUDING THE CITY OF WOODSFIELD
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 50
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 70 (+13) 50 (+8) 80
RH % (24H TREND) 31 (-23) 71 (-19) 42
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR S 5 G17
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR SW 9 G20
PRECIP AMOUNT 0.00 0.00 0.01
PRECIP DURATION 1
PRECIP BEGIN 11 AM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1650 1340
MIXING HGT(FT-AGL/MSL)5410 4400
TRANSPORT WND (MPH) W 9 SW 21
VENT RATE (KT-FT) 43280 79200
CATEGORY DAY 3 4
INVERSION 51F/9AM 8PM 61F/9AM
DISPERSION 3 4
MAX ADI EARLY 37 FAIR 4 VERY POOR 52 GEN GOOD
MAX ADI LATE 60 GEN GOOD 5 VERY POOR 97 GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ007-152030-
MERCER-
INCLUDING THE CITIES OF SHARON, HERMITAGE, AND GROVE CITY
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 60
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 66 (+14) 48 (+7) 76
RH % (24H TREND) 40 (-22) 76 (-16) 49
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR S 7
WIND 20FT/LATE(MPH) W 5 S 5 SW 11 G20
PRECIP AMOUNT 0.00 0.00 0.08
PRECIP DURATION 4
PRECIP BEGIN 11 AM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1570 1060
MIXING HGT(FT-AGL/MSL)5150 3490
TRANSPORT WND (MPH) W 9 SW 21
VENT RATE (KT-FT) 41200 62820
CATEGORY DAY 3 4
INVERSION 50F/9AM 7PM 59F/9AM
DISPERSION 3 4
MAX ADI EARLY 55 GEN GOOD 6 VERY POOR 44 GEN GOOD
MAX ADI LATE 61 GOOD 5 VERY POOR 69 GOOD
MAX LVORI EARLY 6 3 3
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ008-152030-
VENANGO-
INCLUDING THE CITIES OF OIL CITY AND FRANKLIN
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE NONE NONE SHOWERS
CHANCE PRECIP (%) 0 0 60
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 66 (+19) 46 (+5) 76
RH % (24H TREND) 43 (-33) 81 (-15) 47
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR S 5
WIND 20FT/LATE(MPH) NW 5 LGT/VAR SW 9 G18
PRECIP AMOUNT 0.00 0.00 0.04
PRECIP DURATION 3
PRECIP BEGIN 12 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1600 1170
MIXING HGT(FT-AGL/MSL)5260 3850
TRANSPORT WND (MPH) W 12 SW 21
VENT RATE (KT-FT) 52600 69300
CATEGORY DAY 4 4
INVERSION 49F/9AM 8PM 57F/9AM
DISPERSION 4 4
MAX ADI EARLY 63 GOOD 6 VERY POOR 50 GEN GOOD
MAX ADI LATE 73 GOOD 5 VERY POOR 91 GOOD
MAX LVORI EARLY 6 4 4
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ009-152030-
FOREST-
INCLUDING THE CITY OF TIONESTA
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE NONE NONE SHOWERS
CHANCE PRECIP (%) 0 0 50
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 66 (+21) 45 (+4) 76
RH % (24H TREND) 40 (-46) 83 (-15) 42
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) NW 5 LGT/VAR SW 8 G18
PRECIP AMOUNT 0.00 0.00 0.01
PRECIP DURATION 1
PRECIP BEGIN 11 AM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1640 1340
MIXING HGT(FT-AGL/MSL)5390 4390
TRANSPORT WND (MPH) NW 13 SW 22
VENT RATE (KT-FT) 59290 83410
CATEGORY DAY 4 4
INVERSION 45F/8AM 8PM 57F/9AM
DISPERSION 4 4
MAX ADI EARLY 68 GOOD 7 POOR 52 GEN GOOD
MAX ADI LATE 84 GOOD 5 VERY POOR 106 VERY GOOD
MAX LVORI EARLY 6 4 4
MAX LVORI LATE 1 5 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ013-152030-
LAWRENCE-
INCLUDING THE CITIES OF NEW CASTLE AND ELLWOOD CITY
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 50
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 68 (+14) 48 (+7) 78
RH % (24H TREND) 38 (-14) 76 (-13) 47
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR S 5
WIND 20FT/LATE(MPH) W 5 LGT/VAR SW 9 G17
PRECIP AMOUNT 0.00 0.00 0.06
PRECIP DURATION 1
PRECIP BEGIN 11 AM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1620 970
MIXING HGT(FT-AGL/MSL)5320 3180
TRANSPORT WND (MPH) W 9 SW 18
VENT RATE (KT-FT) 42560 50880
CATEGORY DAY 3 3
INVERSION 51F/9AM 7PM 59F/9AM
DISPERSION 3 3
MAX ADI EARLY 58 GEN GOOD 6 VERY POOR 44 GEN GOOD
MAX ADI LATE 65 GOOD 5 VERY POOR 66 GOOD
MAX LVORI EARLY 5 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ014-152030-
BUTLER-
INCLUDING THE CITY OF BUTLER
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE SHOWERS
CHANCE PRECIP (%) 0 0 50
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 67 (+16) 47 (+6) 78
RH % (24H TREND) 43 (-23) 82 (-12) 47
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR S 5
WIND 20FT/LATE(MPH) NW 5 LGT/VAR SW 9 G17
PRECIP AMOUNT 0.00 0.00 0.03
PRECIP DURATION 1
PRECIP BEGIN 12 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1670 1190
MIXING HGT(FT-AGL/MSL)5480 3900
TRANSPORT WND (MPH) W 12 SW 20
VENT RATE (KT-FT) 54800 66300
CATEGORY DAY 4 4
INVERSION 50F/9AM 7PM 59F/9AM
DISPERSION 4 4
MAX ADI EARLY 63 GOOD 7 POOR 40 FAIR
MAX ADI LATE 70 GOOD 5 VERY POOR 73 GOOD
MAX LVORI EARLY 6 4 4
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ015-152030-
CLARION-
INCLUDING THE CITY OF CLARION
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE NONE NONE SHOWERS
CHANCE PRECIP (%) 0 0 60
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 66 (+20) 46 (+5) 77
RH % (24H TREND) 42 (-41) 82 (-14) 44
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) NW 5 LGT/VAR SW 9 G18
PRECIP AMOUNT 0.00 0.00 0.04
PRECIP DURATION 3
PRECIP BEGIN 12 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1650 1260
MIXING HGT(FT-AGL/MSL)5400 4130
TRANSPORT WND (MPH) NW 13 SW 20
VENT RATE (KT-FT) 59400 70210
CATEGORY DAY 4 4
INVERSION 46F/8AM 8PM 57F/9AM
DISPERSION 4 4
MAX ADI EARLY 67 GOOD 7 POOR 47 GEN GOOD
MAX ADI LATE 79 GOOD 4 VERY POOR 91 GOOD
MAX LVORI EARLY 6 4 4
MAX LVORI LATE 1 5 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ016-152030-
JEFFERSON PA-
INCLUDING THE CITIES OF PUNXSUTAWNEY AND BROOKVILLE
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE NONE NONE SHOWERS
CHANCE PRECIP (%) 0 0 50
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 66 (+21) 45 (+3) 76
RH % (24H TREND) 41 (-25) 80 (-16) 41
WIND 20FT/EARLY(MPH) NW 5 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) NW 6 LGT/VAR SW 9 G19
PRECIP AMOUNT 0.00 0.00 0.02
PRECIP DURATION 1
PRECIP BEGIN 11 AM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1690 1230
MIXING HGT(FT-AGL/MSL)5550 4030
TRANSPORT WND (MPH) NW 14 SW 21
VENT RATE (KT-FT) 66600 72540
CATEGORY DAY 4 4
INVERSION 46F/8AM 8PM 58F/9AM
DISPERSION 4 4
MAX ADI EARLY 67 GOOD 8 POOR 49 GEN GOOD
MAX ADI LATE 88 GOOD 4 VERY POOR 85 GOOD
MAX LVORI EARLY 5 3 4
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ020-152030-
BEAVER-
INCLUDING THE CITIES OF ALIQUIPPA, BEAVER FALLS, AMBRIDGE,
AND MONACA
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 50
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 68 (+12) 49 (+7) 78
RH % (24H TREND) 37 (-11) 73 (-9) 46
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR S 5
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR SW 9 G19
PRECIP AMOUNT 0.00 0.00 0.03
PRECIP DURATION 1
PRECIP BEGIN 11 AM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1750 1150
MIXING HGT(FT-AGL/MSL)5750 3770
TRANSPORT WND (MPH) W 9 SW 20
VENT RATE (KT-FT) 46000 64090
CATEGORY DAY 3 4
INVERSION 51F/9AM 8PM 60F/9AM
DISPERSION 3 4
MAX ADI EARLY 60 GEN GOOD 5 VERY POOR 51 GEN GOOD
MAX ADI LATE 67 GOOD 5 VERY POOR 69 GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ021-152030-
ALLEGHENY-
INCLUDING THE CITY OF PITTSBURGH METRO AREA
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE SHOWERS
CHANCE PRECIP (%) 0 0 50
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 68 (+15) 49 (+6) 79
RH % (24H TREND) 39 (-25) 78 (-6) 42
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR S 5
WIND 20FT/LATE(MPH) W 6 LGT/VAR SW 12 G20
PRECIP AMOUNT 0.00 0.00 0.01
PRECIP DURATION 1
PRECIP BEGIN 1 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1810 1480
MIXING HGT(FT-AGL/MSL)5930 4860
TRANSPORT WND (MPH) W 12 SW 21
VENT RATE (KT-FT) 59300 87480
CATEGORY DAY 4 4
INVERSION 50F/9AM 8PM 60F/9AM
DISPERSION 4 4
MAX ADI EARLY 66 GOOD 7 POOR 46 GEN GOOD
MAX ADI LATE 73 GOOD 4 VERY POOR 79 GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ022-152030-
ARMSTRONG-
INCLUDING THE CITIES OF KITTANNING AND FORD CITY
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE SHOWERS
CHANCE PRECIP (%) 0 0 50
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 67 (+18) 46 (+4) 78
RH % (24H TREND) 44 (-36) 84 (-10) 45
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) NW 6 LGT/VAR SW 9 G18
PRECIP AMOUNT 0.00 0.00 0.01
PRECIP DURATION 1
PRECIP BEGIN 12 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1670 1350
MIXING HGT(FT-AGL/MSL)5480 4430
TRANSPORT WND (MPH) W 13 SW 20
VENT RATE (KT-FT) 60280 75310
CATEGORY DAY 4 4
INVERSION 46F/8AM 7PM 59F/9AM
DISPERSION 4 4
MAX ADI EARLY 63 GOOD 7 POOR 45 GEN GOOD
MAX ADI LATE 77 GOOD 4 VERY POOR 77 GOOD
MAX LVORI EARLY 6 3 4
MAX LVORI LATE 1 5 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ029-152030-
WASHINGTON-
INCLUDING THE CITIES OF WASHINGTON AND CANONSBURG
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 40
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 67 (+13) 49 (+8) 79
RH % (24H TREND) 37 (-18) 73 (-8) 43
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR S 6
WIND 20FT/LATE(MPH) W 5 LGT/VAR SW 12 G21
PRECIP AMOUNT 0.00 0.00 0.01
PRECIP DURATION 1
PRECIP BEGIN 1 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1730 1560
MIXING HGT(FT-AGL/MSL)5680 5110
TRANSPORT WND (MPH) W 10 SW 21
VENT RATE (KT-FT) 51120 91980
CATEGORY DAY 4 4
INVERSION 51F/9AM 7PM 61F/9AM
DISPERSION 4 4
MAX ADI EARLY 61 GOOD 7 POOR 50 GEN GOOD
MAX ADI LATE 65 GOOD 5 VERY POOR 86 GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ031-152030-
GREENE-
INCLUDING THE CITY OF WAYNESBURG
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 30
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 68 (+16) 49 (+8) 80
RH % (24H TREND) 38 (-36) 72 (-13) 42
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR S 5
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR SW 10 G20
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 1 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1740 1630
MIXING HGT(FT-AGL/MSL)5700 5340
TRANSPORT WND (MPH) W 9 SW 21
VENT RATE (KT-FT) 45600 96120
CATEGORY DAY 3 4
INVERSION 51F/9AM 8PM 61F/9AM
DISPERSION 3 4
MAX ADI EARLY 64 GOOD 7 POOR 62 GOOD
MAX ADI LATE 67 GOOD 5 VERY POOR 94 GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ073-152030-
WESTMORELAND-
INCLUDING THE CITIES OF MURRYSVILLE, GREENSBURG, NEW KENSINGTON,
LOWER BURRELL, LATROBE, AND MONESSEN
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE SHOWERS
CHANCE PRECIP (%) 0 0 40
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 67 (+18) 48 (+6) 79
RH % (24H TREND) 42 (-33) 80 (-9) 43
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR S 5
WIND 20FT/LATE(MPH) W 6 LGT/VAR SW 12 G20
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 1 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1750 1440
MIXING HGT(FT-AGL/MSL)5740 4720
TRANSPORT WND (MPH) W 12 SW 20
VENT RATE (KT-FT) 57400 80240
CATEGORY DAY 4 4
INVERSION 50F/9AM 7PM 61F/9AM
DISPERSION 4 4
MAX ADI EARLY 62 GOOD 7 POOR 45 GEN GOOD
MAX ADI LATE 77 GOOD 4 VERY POOR 78 GOOD
MAX LVORI EARLY 5 3 3
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ074-152030-
HIGHER ELEVATIONS OF WESTMORELAND-
INCLUDING THE CITIES OF LIGONIER AND DONEGAL
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE SHOWERS
CHANCE PRECIP (%) 0 0 20
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 67 (+22) 47 (+5) 80
RH % (24H TREND) 40 (-44) 74 (-20) 38
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) NW 6 LGT/VAR SW 9 G19
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 0
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1620 1480
MIXING HGT(FT-AGL/MSL)5330 4860
TRANSPORT WND (MPH) W 14 SW 20
VENT RATE (KT-FT) 63960 82620
CATEGORY DAY 4 4
INVERSION 45F/8AM 8PM 61F/9AM
DISPERSION 4 4
MAX ADI EARLY 58 GEN GOOD 8 POOR 60 GEN GOOD
MAX ADI LATE 83 GOOD 4 VERY POOR 103 VERY GOOD
MAX LVORI EARLY 5 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ075-152030-
FAYETTE-
INCLUDING THE CITY OF UNIONTOWN
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 30
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 67 (+17) 48 (+7) 80
RH % (24H TREND) 40 (-34) 75 (-12) 42
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR S 5
WIND 20FT/LATE(MPH) W 5 LGT/VAR SW 10 G18
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 1 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1750 1550
MIXING HGT(FT-AGL/MSL)5760 5070
TRANSPORT WND (MPH) W 12 SW 20
VENT RATE (KT-FT) 57600 86190
CATEGORY DAY 4 4
INVERSION 49F/9AM 7PM 62F/9AM
DISPERSION 4 4
MAX ADI EARLY 61 GOOD 6 VERY POOR 52 GEN GOOD
MAX ADI LATE 80 GOOD 4 VERY POOR 84 GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ076-152030-
HIGHER ELEVATIONS OF FAYETTE-
INCLUDING THE CITIES OF CHAMPION AND OHIOPYLE
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 20
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 65 (+20) 47 (+7) 78
RH % (24H TREND) 41 (-45) 72 (-23) 41
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) NW 5 LGT/VAR SW 7 G18
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 0
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1560 1470
MIXING HGT(FT-AGL/MSL)5130 4830
TRANSPORT WND (MPH) W 13 SW 18
VENT RATE (KT-FT) 56430 77280
CATEGORY DAY 4 4
INVERSION 43F/8AM 8PM 60F/9AM
DISPERSION 4 4
MAX ADI EARLY 61 GOOD 6 VERY POOR 59 GEN GOOD
MAX ADI LATE 80 GOOD 4 VERY POOR 105 VERY GOOD
MAX LVORI EARLY 5 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ077-152030-
INDIANA-
INCLUDING THE CITY OF INDIANA
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE SHOWERS
CHANCE PRECIP (%) 0 0 30
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 67 (+21) 47 (+5) 79
RH % (24H TREND) 44 (-40) 81 (-15) 41
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) NW 7 LGT/VAR SW 9 G18
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 1 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1670 1430
MIXING HGT(FT-AGL/MSL)5480 4700
TRANSPORT WND (MPH) W 14 SW 20
VENT RATE (KT-FT) 65760 79900
CATEGORY DAY 4 4
INVERSION 46F/8AM 7PM 60F/9AM
DISPERSION 4 4
MAX ADI EARLY 63 GOOD 8 POOR 51 GEN GOOD
MAX ADI LATE 83 GOOD 4 VERY POOR 83 GOOD
MAX LVORI EARLY 6 3 4
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ078-152030-
HIGHER ELEVATIONS OF INDIANA-
INCLUDING THE CITY OF ARMAGH
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE SHOWERS
CHANCE PRECIP (%) 0 0 20
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 66 (+21) 47 (+5) 79
RH % (24H TREND) 43 (-43) 76 (-21) 40
WIND 20FT/EARLY(MPH) NW 5 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) NW 7 LGT/VAR SW 9 G19
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 0
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1620 1460
MIXING HGT(FT-AGL/MSL)5300 4800
TRANSPORT WND (MPH) W 14 SW 20
VENT RATE (KT-FT) 63600 81600
CATEGORY DAY 4 4
INVERSION 46F/8AM 8PM 60F/9AM
DISPERSION 4 4
MAX ADI EARLY 60 GEN GOOD 8 POOR 51 GEN GOOD
MAX ADI LATE 86 GOOD 4 VERY POOR 96 GOOD
MAX LVORI EARLY 5 3 3
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ001-152030-
HANCOCK-
INCLUDING THE CITY OF WEIRTON
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 60
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 68 (+10) 50 (+8) 78
RH % (24H TREND) 35 (-5) 69 (-11) 46
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR S 5
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR SW 10 G19
PRECIP AMOUNT 0.00 0.00 0.04
PRECIP DURATION 3
PRECIP BEGIN 12 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1730 1190
MIXING HGT(FT-AGL/MSL)5680 3910
TRANSPORT WND (MPH) W 9 SW 21
VENT RATE (KT-FT) 45440 70380
CATEGORY DAY 3 4
INVERSION 51F/9AM 8PM 60F/9AM
DISPERSION 3 4
MAX ADI EARLY 54 GEN GOOD 5 VERY POOR 55 GEN GOOD
MAX ADI LATE 66 GOOD 5 VERY POOR 76 GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ002-152030-
BROOKE-
INCLUDING THE CITIES OF FOLLANSBEE AND WELLSBURG
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 60
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 68 (+12) 51 (+10) 78
RH % (24H TREND) 35 (-4) 67 (-11) 44
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR S 6
WIND 20FT/LATE(MPH) W 5 LGT/VAR SW 11 G20
PRECIP AMOUNT 0.00 0.00 0.01
PRECIP DURATION 3
PRECIP BEGIN 1 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1740 1300
MIXING HGT(FT-AGL/MSL)5700 4260
TRANSPORT WND (MPH) W 9 SW 23
VENT RATE (KT-FT) 45600 85200
CATEGORY DAY 3 4
INVERSION 51F/9AM 8PM 61F/9AM
DISPERSION 3 4
MAX ADI EARLY 51 GEN GOOD 7 POOR 49 GEN GOOD
MAX ADI LATE 66 GOOD 5 VERY POOR 86 GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ003-152030-
OHIO-
INCLUDING THE CITY OF WHEELING
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 50
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 68 (+11) 50 (+9) 79
RH % (24H TREND) 35 (-3) 69 (-11) 44
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR S 6
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR SW 11 G21
PRECIP AMOUNT 0.00 0.00 0.01
PRECIP DURATION 1
PRECIP BEGIN 1 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1680 1380
MIXING HGT(FT-AGL/MSL)5530 4510
TRANSPORT WND (MPH) W 9 SW 23
VENT RATE (KT-FT) 44240 90200
CATEGORY DAY 3 4
INVERSION 51F/9AM 8PM 61F/9AM
DISPERSION 3 4
MAX ADI EARLY 47 GEN GOOD 7 POOR 48 GEN GOOD
MAX ADI LATE 65 GOOD 5 VERY POOR 88 GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ004-152030-
MARSHALL-
INCLUDING THE CITY OF MOUNDSVILLE
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 40
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 70 (+15) 51 (+10) 80
RH % (24H TREND) 36 (-22) 69 (-12) 44
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR S 5 G17
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR SW 10 G20
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 1 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1690 1430
MIXING HGT(FT-AGL/MSL)5560 4690
TRANSPORT WND (MPH) W 9 SW 22
VENT RATE (KT-FT) 44480 89110
CATEGORY DAY 3 4
INVERSION 51F/9AM 8PM 61F/9AM
DISPERSION 3 4
MAX ADI EARLY 47 GEN GOOD 5 VERY POOR 56 GEN GOOD
MAX ADI LATE 62 GOOD 5 VERY POOR 84 GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ012-152030-
WETZEL-
INCLUDING THE CITY OF NEW MARTINSVILLE
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 30
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 69 (+17) 51 (+10) 80
RH % (24H TREND) 35 (-35) 69 (-14) 42
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR SW 9 G20
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 1 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1680 1700
MIXING HGT(FT-AGL/MSL)5510 5570
TRANSPORT WND (MPH) W 9 SW 21
VENT RATE (KT-FT) 44080 100260
CATEGORY DAY 3 4
INVERSION 51F/9AM 8PM 61F/9AM
DISPERSION 3 4
MAX ADI EARLY 49 GEN GOOD 4 VERY POOR 61 GOOD
MAX ADI LATE 68 GOOD 4 VERY POOR 122 VERY GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ021-152030-
MARION-
INCLUDING THE CITY OF FAIRMONT
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 20
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 68 (+16) 49 (+8) 80
RH % (24H TREND) 39 (-37) 74 (-19) 43
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR SW 9 G19
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 0
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1740 1760
MIXING HGT(FT-AGL/MSL)5720 5790
TRANSPORT WND (MPH) W 9 SW 21
VENT RATE (KT-FT) 45760 104220
CATEGORY DAY 3 4
INVERSION 49F/9AM 8PM 61F/9AM
DISPERSION 3 4
MAX ADI EARLY 58 GEN GOOD 5 VERY POOR 51 GEN GOOD
MAX ADI LATE 68 GOOD 4 VERY POOR 127 VERY GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ509-152030-
MONONGALIA-
INCLUDING THE CITY OF MORGANTOWN
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 20
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 68 (+18) 49 (+8) 80
RH % (24H TREND) 37 (-41) 72 (-17) 41
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR SW 9 G19
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 0
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1740 1760
MIXING HGT(FT-AGL/MSL)5710 5760
TRANSPORT WND (MPH) W 10 SW 21
VENT RATE (KT-FT) 51390 103680
CATEGORY DAY 4 4
INVERSION 50F/9AM 7PM 62F/9AM
DISPERSION 4 4
MAX ADI EARLY 63 GOOD 6 VERY POOR 56 GEN GOOD
MAX ADI LATE 72 GOOD 4 VERY POOR 107 VERY GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ510-152030-
RIDGES OF EASTERN MONONGALIA AND NORTHWESTERN PRESTON-
INCLUDING THE CITY OF COOPERS ROCK
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 20
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 65 (+20) 48 (+9) 78
RH % (24H TREND) 40 (-46) 70 (-27) 44
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) NW 5 LGT/VAR SW 8 G18
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 0
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1640 1640
MIXING HGT(FT-AGL/MSL)5380 5390
TRANSPORT WND (MPH) W 12 SW 20
VENT RATE (KT-FT) 53800 91630
CATEGORY DAY 4 4
INVERSION 46F/9AM 8PM 60F/9AM
DISPERSION 4 4
MAX ADI EARLY 59 GEN GOOD 5 VERY POOR 57 GEN GOOD
MAX ADI LATE 76 GOOD 4 VERY POOR 115 VERY GOOD
MAX LVORI EARLY 5 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ511-152030-
PRESTON-
INCLUDING THE CITIES OF KINGWOOD AND BRUCETON MILLS
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 20
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 65 (+19) 48 (+9) 78
RH % (24H TREND) 39 (-44) 71 (-26) 42
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR SW 7 G17
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 0
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1590 1580
MIXING HGT(FT-AGL/MSL)5230 5190
TRANSPORT WND (MPH) W 13 SW 18
VENT RATE (KT-FT) 57530 83040
CATEGORY DAY 4 4
INVERSION 46F/9AM 8PM 61F/9AM
DISPERSION 4 4
MAX ADI EARLY 62 GOOD 5 VERY POOR 59 GEN GOOD
MAX ADI LATE 77 GOOD 4 VERY POOR 105 VERY GOOD
MAX LVORI EARLY 5 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ512-152030-
EASTERN PRESTON-
INCLUDING THE CITIES OF TERRA ALTA, ROWLESBURG, AND HAZELTON
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 20
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 64 (+20) 47 (+8) 77
RH % (24H TREND) 41 (-47) 71 (-28) 43
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) NW 6 LGT/VAR SW 8 G18
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 0
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1510 1560
MIXING HGT(FT-AGL/MSL)4970 5120
TRANSPORT WND (MPH) W 14 SW 20
VENT RATE (KT-FT) 59640 87040
CATEGORY DAY 4 4
INVERSION 44F/9AM 8PM 59F/9AM
DISPERSION 4 4
MAX ADI EARLY 68 GOOD 8 POOR 58 GEN GOOD
MAX ADI LATE 77 GOOD 4 VERY POOR 109 VERY GOOD
MAX LVORI EARLY 5 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ513-152030-
WESTERN TUCKER-
INCLUDING THE CITIES OF PARSONS, HENDRICKS, AND SAINT GEORGE
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 20
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 65 (+20) 47 (+8) 78
RH % (24H TREND) 40 (-43) 68 (-29) 42
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) NW 5 LGT/VAR SW 7 G18
PRECIP AMOUNT 0.00 0.00 0.01
PRECIP DURATION 0
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1460 1720
MIXING HGT(FT-AGL/MSL)4800 5660
TRANSPORT WND (MPH) W 14 SW 20
VENT RATE (KT-FT) 57600 96220
CATEGORY DAY 4 4
INVERSION 45F/9AM 8PM 59F/9AM
DISPERSION 4 4
MAX ADI EARLY 65 GOOD 6 VERY POOR 54 GEN GOOD
MAX ADI LATE 75 GOOD 4 VERY POOR 120 VERY GOOD
MAX LVORI EARLY 5 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ514-152030-
EASTERN TUCKER-
INCLUDING THE CITIES OF DAVIS, THOMAS, AND CANAAN VALLEY
138 AM EDT FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 20
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 61 (+20) 43 (+6) 75
RH % (24H TREND) 46 (-44) 71 (-27) 45
WIND 20FT/EARLY(MPH) NW 7 G23 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) NW 7 G19 LGT/VAR W 8 G23
PRECIP AMOUNT 0.00 0.00 0.01
PRECIP DURATION 0
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1270 1880
MIXING HGT(FT-AGL/MSL)4170 6150
TRANSPORT WND (MPH) W 15 SW 21
VENT RATE (KT-FT) 54210 110700
CATEGORY DAY 4 5
INVERSION 40F/8AM 8PM 58F/9AM
DISPERSION 4 5
MAX ADI EARLY 72 GOOD 9 POOR 67 GOOD
MAX ADI LATE 77 GOOD 4 VERY POOR 132 VERY GOOD
MAX LVORI EARLY 5 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
FORECAST FOR DAYS 3 THROUGH 7
SUNDAY
MOSTLY CLOUDY. SHOWERS LIKELY AND A CHANCE OF
THUNDERSTORMS. LOWS AROUND 60. HIGHS AROUND 80. SOUTH WINDS
AROUND 5 MPH.
MONDAY
MOSTLY CLEAR. LOWS IN THE LOWER 60S. HIGHS IN THE UPPER
80S. SOUTHEAST WINDS AROUND 5 MPH.
TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 60S. HIGHS AROUND 90.
SOUTHWEST WINDS 10 TO 15 MPH.
WEDNESDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 60S. HIGHS IN THE LOWER 80S.
WEST WINDS 10 TO 15 MPH.
THURSDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS. NOT AS WARM. LOWS
IN THE MID 50S. HIGHS IN THE LOWER 70S. NORTH WINDS 5 TO 10 MPH.
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