558
FNUS51 KPBZ 170703
FWFPBZ
FIRE WEATHER PLANNING FORECAST
NATIONAL WEATHER SERVICE PITTSBURGH PA
303 AM EDT TUE MAR 17 2026
DISCUSSION
WESTERLY WIND IS EXPECTED TO GRADUALLY EASE THROUGHOUT THE DAY
AND INTO THE EVENING. TONIGHT, WINDS WILL BECOME LIGHT AND
GRADUALLY SHIFT OUT OF THE SOUTH BY WEDNESDAY MORNING. SOUTHERLY
WIND WILL FRESHEN UP TO 5-10 MPH DURING THE DAY ON WEDNESDAY.
TODAY, MOST OF WESTERN PENNSYLVANIA AND NORTHERN WEST VIRGINIA
REMAIN RELATIVELY MOIST. PARTS OF OHIO WILL HAVE MINIMUM RELATIVE
HUMIDITY BETWEEN 35%-40%. DURING THE DAY WEDNESDAY, MINIMUM RELATIVE
HUMIDITY ACROSS THE REGION WILL RANGE BETWEEN 35%-45%.
OHZ039-172030-
TUSCARAWAS-
INCLUDING THE CITIES OF NEW PHILADELPHIA AND DOVER
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS NONE NONE
CHANCE PRECIP (%) 50 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 29 (-30) 17 (-14) 38
RH % (24H TREND) 41 (-21) 68 (-30) 40
WIND 20FT/EARLY(MPH) W 11 G22 W 6 S 5
WIND 20FT/LATE(MPH) W 11 G20 LGT/VAR S 9 G17
PRECIP AMOUNT 0.06 0.00 0.00
PRECIP DURATION 3
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT(M-AGL/MSL) 1950 1280
MIXING HGT(FT-AGL/MSL)6410 4200
TRANSPORT WND (MPH) W 24 S 21
VENT RATE (KT-FT) 134610 75600
CATEGORY DAY 5 4
INVERSION 22F/6AM 8PM 21F/9AM
DISPERSION 5 4
MAX ADI EARLY 68 GOOD 28 FAIR 62 GOOD
MAX ADI LATE 79 GOOD 4 VERY POOR 71 GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ040-172030-
CARROLL-
INCLUDING THE CITIES OF CARROLLTON AND MALVERN
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 60 30 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 28 (-32) 17 (-13) 38
RH % (24H TREND) 43 (-22) 69 (-29) 40
WIND 20FT/EARLY(MPH) W 13 G23 W 7 S 5
WIND 20FT/LATE(MPH) W 12 G21 LGT/VAR S 9
PRECIP AMOUNT 0.05 0.00 0.00
PRECIP DURATION 3 0
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1800 1240
MIXING HGT(FT-AGL/MSL)5900 4080
TRANSPORT WND (MPH) W 23 S 21
VENT RATE (KT-FT) 118000 73440
CATEGORY DAY 5 4
INVERSION 21F/6AM 8PM 21F/9AM
DISPERSION 5 4
MAX ADI EARLY 73 GOOD 29 FAIR 56 GEN GOOD
MAX ADI LATE 78 GOOD 5 VERY POOR 69 GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ041-172030-
COLUMBIANA-
INCLUDING THE CITIES OF EAST LIVERPOOL, SALEM, AND COLUMBIANA
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 60 40 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 28 (-33) 16 (-14) 37
RH % (24H TREND) 43 (-25) 70 (-25) 39
WIND 20FT/EARLY(MPH) W 13 G23 W 6 S 5
WIND 20FT/LATE(MPH) W 12 G22 LGT/VAR S 8
PRECIP AMOUNT 0.04 0.01 0.00
PRECIP DURATION 2 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1760 1300
MIXING HGT(FT-AGL/MSL)5780 4270
TRANSPORT WND (MPH) W 25 S 21
VENT RATE (KT-FT) 127160 76860
CATEGORY DAY 5 4
INVERSION 21F/6AM 8PM 21F/9AM
DISPERSION 5 4
MAX ADI EARLY 78 GOOD 28 FAIR 56 GEN GOOD
MAX ADI LATE 81 GOOD 5 VERY POOR 67 GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ048-172030-
COSHOCTON-
INCLUDING THE CITY OF COSHOCTON
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS NONE NONE
CHANCE PRECIP (%) 50 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 29 (-28) 18 (-11) 39
RH % (24H TREND) 39 (-26) 68 (-30) 43
WIND 20FT/EARLY(MPH) W 10 G21 W 5 LGT/VAR
WIND 20FT/LATE(MPH) W 10 G18 LGT/VAR S 8
PRECIP AMOUNT 0.04 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT(M-AGL/MSL) 2110 1310
MIXING HGT(FT-AGL/MSL)6920 4290
TRANSPORT WND (MPH) W 22 S 22
VENT RATE (KT-FT) 131480 81510
CATEGORY DAY 5 4
INVERSION 22F/6AM 8PM 20F/8AM
DISPERSION 5 4
MAX ADI EARLY 69 GOOD 28 FAIR 57 GEN GOOD
MAX ADI LATE 79 GOOD 4 VERY POOR 60 GEN GOOD
MAX LVORI EARLY 3 2 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ049-172030-
HARRISON-
INCLUDING THE CITY OF CADIZ
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 50 20 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 30 (-31) 16 (-15) 38
RH % (24H TREND) 40 (-23) 71 (-29) 38
WIND 20FT/EARLY(MPH) W 11 G22 W 6 G17 S 5
WIND 20FT/LATE(MPH) W 11 G21 LGT/VAR S 8
PRECIP AMOUNT 0.07 0.00 0.00
PRECIP DURATION 2 0
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1930 1250
MIXING HGT(FT-AGL/MSL)6320 4090
TRANSPORT WND (MPH) W 23 S 20
VENT RATE (KT-FT) 126400 69530
CATEGORY DAY 5 4
INVERSION 22F/6AM 8PM 21F/9AM
DISPERSION 5 4
MAX ADI EARLY 63 GOOD 29 FAIR 56 GEN GOOD
MAX ADI LATE 78 GOOD 6 VERY POOR 66 GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ050-172030-
JEFFERSON OH-
INCLUDING THE CITY OF STEUBENVILLE
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 50 30 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 30 (-31) 17 (-14) 38
RH % (24H TREND) 41 (-24) 70 (-29) 36
WIND 20FT/EARLY(MPH) W 11 G22 W 7 G17 LGT/VAR
WIND 20FT/LATE(MPH) W 12 G21 LGT/VAR S 8
PRECIP AMOUNT 0.07 0.00 0.00
PRECIP DURATION 2 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1840 1320
MIXING HGT(FT-AGL/MSL)6050 4340
TRANSPORT WND (MPH) W 23 S 18
VENT RATE (KT-FT) 121000 69440
CATEGORY DAY 5 4
INVERSION 22F/6AM 8PM 21F/9AM
DISPERSION 5 4
MAX ADI EARLY 69 GOOD 30 FAIR 55 GEN GOOD
MAX ADI LATE 79 GOOD 4 VERY POOR 64 GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ057-172030-
MUSKINGUM-
INCLUDING THE CITY OF ZANESVILLE
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS NONE NONE
CHANCE PRECIP (%) 50 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 30 (-28) 17 (-12) 40
RH % (24H TREND) 40 (-24) 69 (-29) 41
WIND 20FT/EARLY(MPH) W 10 G21 W 5 LGT/VAR
WIND 20FT/LATE(MPH) W 10 G19 LGT/VAR S 7
PRECIP AMOUNT 0.05 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT(M-AGL/MSL) 2010 1320
MIXING HGT(FT-AGL/MSL)6610 4320
TRANSPORT WND (MPH) W 22 S 21
VENT RATE (KT-FT) 125590 77760
CATEGORY DAY 5 4
INVERSION 22F/6AM 9PM 21F/9AM
DISPERSION 5 4
MAX ADI EARLY 65 GOOD 28 FAIR 52 GEN GOOD
MAX ADI LATE 75 GOOD 4 VERY POOR 59 GEN GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ058-172030-
GUERNSEY-
INCLUDING THE CITY OF CAMBRIDGE
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS NONE NONE
CHANCE PRECIP (%) 40 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 30 (-30) 17 (-13) 40
RH % (24H TREND) 40 (-22) 70 (-29) 38
WIND 20FT/EARLY(MPH) W 9 G22 W 5 LGT/VAR
WIND 20FT/LATE(MPH) W 10 G20 LGT/VAR S 7
PRECIP AMOUNT 0.05 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT(M-AGL/MSL) 1950 1270
MIXING HGT(FT-AGL/MSL)6400 4180
TRANSPORT WND (MPH) W 22 S 21
VENT RATE (KT-FT) 121600 75240
CATEGORY DAY 5 4
INVERSION 22F/6AM 9PM 21F/9AM
DISPERSION 5 4
MAX ADI EARLY 65 GOOD 28 FAIR 46 GEN GOOD
MAX ADI LATE 76 GOOD 4 VERY POOR 58 GEN GOOD
MAX LVORI EARLY 3 2 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ059-172030-
BELMONT-
INCLUDING THE CITIES OF MARTINS FERRY AND ST. CLAIRSVILLE
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS NONE NONE
CHANCE PRECIP (%) 60 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 30 (-31) 17 (-15) 39
RH % (24H TREND) 42 (-21) 72 (-28) 37
WIND 20FT/EARLY(MPH) W 11 G23 W 7 G17 LGT/VAR
WIND 20FT/LATE(MPH) W 11 G22 LGT/VAR S 7
PRECIP AMOUNT 0.05 0.00 0.00
PRECIP DURATION 3
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT(M-AGL/MSL) 1790 1290
MIXING HGT(FT-AGL/MSL)5880 4240
TRANSPORT WND (MPH) W 22 S 18
VENT RATE (KT-FT) 111720 67840
CATEGORY DAY 5 4
INVERSION 22F/6AM 8PM 21F/9AM
DISPERSION 5 4
MAX ADI EARLY 61 GOOD 29 FAIR 53 GEN GOOD
MAX ADI LATE 77 GOOD 5 VERY POOR 62 GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ068-172030-
NOBLE-
INCLUDING THE CITY OF CALDWELL
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS NONE NONE
CHANCE PRECIP (%) 70 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 30 (-30) 17 (-14) 41
RH % (24H TREND) 41 (-22) 73 (-24) 39
WIND 20FT/EARLY(MPH) W 9 G22 W 5 G17 LGT/VAR
WIND 20FT/LATE(MPH) W 10 G20 LGT/VAR S 7
PRECIP AMOUNT 0.07 0.00 0.00
PRECIP DURATION 3
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT(M-AGL/MSL) 1920 1250
MIXING HGT(FT-AGL/MSL)6280 4110
TRANSPORT WND (MPH) W 22 S 20
VENT RATE (KT-FT) 119320 69870
CATEGORY DAY 5 4
INVERSION 23F/6AM 9PM 22F/9AM
DISPERSION 5 4
MAX ADI EARLY 62 GOOD 28 FAIR 45 GEN GOOD
MAX ADI LATE 75 GOOD 4 VERY POOR 54 GEN GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ069-172030-
MONROE-
INCLUDING THE CITY OF WOODSFIELD
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 70 20 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 31 (-30) 17 (-15) 41
RH % (24H TREND) 41 (-23) 73 (-26) 38
WIND 20FT/EARLY(MPH) W 9 G22 W 5 G17 LGT/VAR
WIND 20FT/LATE(MPH) W 9 G22 LGT/VAR S 6
PRECIP AMOUNT 0.07 0.00 0.00
PRECIP DURATION 5 0
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1810 1320
MIXING HGT(FT-AGL/MSL)5930 4350
TRANSPORT WND (MPH) W 22 S 18
VENT RATE (KT-FT) 112670 69600
CATEGORY DAY 5 4
INVERSION 23F/6AM 10PM 22F/9AM
DISPERSION 5 4
MAX ADI EARLY 62 GOOD 29 FAIR 49 GEN GOOD
MAX ADI LATE 77 GOOD 5 VERY POOR 60 GEN GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ007-172030-
MERCER-
INCLUDING THE CITIES OF SHARON, HERMITAGE, AND GROVE CITY
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 60 20 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 28 (-33) 14 (-14) 35
RH % (24H TREND) 49 (-27) 79 (-17) 44
WIND 20FT/EARLY(MPH) W 13 G24 W 6 S 5
WIND 20FT/LATE(MPH) W 13 G22 LGT/VAR S 9
PRECIP AMOUNT 0.07 0.00 0.00
PRECIP DURATION 3 0
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1670 1300
MIXING HGT(FT-AGL/MSL)5460 4250
TRANSPORT WND (MPH) W 24 S 21
VENT RATE (KT-FT) 114660 76500
CATEGORY DAY 5 4
INVERSION 20F/6AM 8PM 17F/4AM
DISPERSION 5 4
MAX ADI EARLY 78 GOOD 28 FAIR 57 GEN GOOD
MAX ADI LATE 78 GOOD 7 POOR 65 GOOD
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ008-172030-
VENANGO-
INCLUDING THE CITIES OF OIL CITY AND FRANKLIN
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 60 20 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 26 (-36) 13 (-14) 35
RH % (24H TREND) 50 (-31) 80 (-15) 44
WIND 20FT/EARLY(MPH) W 11 G24 W 5 S 5
WIND 20FT/LATE(MPH) W 11 G22 LGT/VAR S 7
PRECIP AMOUNT 0.05 0.00 0.00
PRECIP DURATION 2 0
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1820 1370
MIXING HGT(FT-AGL/MSL)5960 4500
TRANSPORT WND (MPH) W 26 S 18
VENT RATE (KT-FT) 137080 72000
CATEGORY DAY 5 4
INVERSION 19F/6AM 8PM 16F/4AM
DISPERSION 5 4
MAX ADI EARLY 87 GOOD 32 FAIR 53 GEN GOOD
MAX ADI LATE 89 GOOD 6 VERY POOR 64 GOOD
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ009-172030-
FOREST-
INCLUDING THE CITY OF TIONESTA
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 60 20 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 26 (-36) 13 (-13) 33
RH % (24H TREND) 47 (-32) 82 (-15) 43
WIND 20FT/EARLY(MPH) W 11 G24 W 5 G17 LGT/VAR
WIND 20FT/LATE(MPH) W 10 G23 LGT/VAR S 6
PRECIP AMOUNT 0.04 0.00 0.00
PRECIP DURATION 2 0
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1950 1420
MIXING HGT(FT-AGL/MSL)6410 4660
TRANSPORT WND (MPH) W 29 S 18
VENT RATE (KT-FT) 160250 74560
CATEGORY DAY 5 4
INVERSION 18F/6AM 9PM 15F/4AM
DISPERSION 5 4
MAX ADI EARLY 98 GOOD 34 FAIR 51 GEN GOOD
MAX ADI LATE 100 GOOD 5 VERY POOR 65 GOOD
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 5 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ013-172030-
LAWRENCE-
INCLUDING THE CITIES OF NEW CASTLE AND ELLWOOD CITY
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 40 30 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 29 (-34) 15 (-14) 37
RH % (24H TREND) 45 (-30) 76 (-22) 41
WIND 20FT/EARLY(MPH) W 12 G23 W 5 LGT/VAR
WIND 20FT/LATE(MPH) W 11 G19 LGT/VAR S 7
PRECIP AMOUNT 0.04 0.01 0.00
PRECIP DURATION 2 0
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1780 1340
MIXING HGT(FT-AGL/MSL)5840 4380
TRANSPORT WND (MPH) W 24 S 20
VENT RATE (KT-FT) 122640 74460
CATEGORY DAY 5 4
INVERSION 20F/6AM 8PM 20F/9AM
DISPERSION 5 4
MAX ADI EARLY 80 GOOD 26 FAIR 57 GEN GOOD
MAX ADI LATE 80 GOOD 5 VERY POOR 68 GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ014-172030-
BUTLER-
INCLUDING THE CITY OF BUTLER
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 50 40 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 29 (-34) 14 (-14) 36
RH % (24H TREND) 48 (-31) 79 (-17) 43
WIND 20FT/EARLY(MPH) W 12 G23 W 5 LGT/VAR
WIND 20FT/LATE(MPH) W 11 G22 LGT/VAR S 7
PRECIP AMOUNT 0.04 0.01 0.00
PRECIP DURATION 2 0
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1890 1310
MIXING HGT(FT-AGL/MSL)6210 4310
TRANSPORT WND (MPH) W 26 S 18
VENT RATE (KT-FT) 142830 68960
CATEGORY DAY 5 4
INVERSION 19F/6AM 8PM 19F/9AM
DISPERSION 5 4
MAX ADI EARLY 83 GOOD 28 FAIR 49 GEN GOOD
MAX ADI LATE 88 GOOD 4 VERY POOR 62 GOOD
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ015-172030-
CLARION-
INCLUDING THE CITY OF CLARION
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS NONE NONE
CHANCE PRECIP (%) 50 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 27 (-36) 13 (-14) 34
RH % (24H TREND) 49 (-30) 80 (-15) 43
WIND 20FT/EARLY(MPH) W 12 G24 W 5 G17 LGT/VAR
WIND 20FT/LATE(MPH) W 11 G23 LGT/VAR S 6
PRECIP AMOUNT 0.04 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT(M-AGL/MSL) 1810 1380
MIXING HGT(FT-AGL/MSL)5950 4530
TRANSPORT WND (MPH) W 26 S 18
VENT RATE (KT-FT) 136850 72480
CATEGORY DAY 5 4
INVERSION 19F/6AM 8PM 18F/9AM
DISPERSION 5 4
MAX ADI EARLY 87 GOOD 31 FAIR 45 GEN GOOD
MAX ADI LATE 91 GOOD 4 VERY POOR 61 GOOD
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ016-172030-
JEFFERSON PA-
INCLUDING THE CITIES OF PUNXSUTAWNEY AND BROOKVILLE
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 40 20 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 27 (-36) 13 (-13) 34
RH % (24H TREND) 47 (-29) 78 (-19) 40
WIND 20FT/EARLY(MPH) W 14 G26 W 6 G18 LGT/VAR
WIND 20FT/LATE(MPH) W 12 G24 LGT/VAR S 6
PRECIP AMOUNT 0.03 0.00 0.00
PRECIP DURATION 2 0
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1930 1410
MIXING HGT(FT-AGL/MSL)6330 4640
TRANSPORT WND (MPH) W 29 S 17
VENT RATE (KT-FT) 158250 69600
CATEGORY DAY 5 4
INVERSION 19F/6AM 8PM 18F/9AM
DISPERSION 5 4
MAX ADI EARLY 94 GOOD 34 FAIR 45 GEN GOOD
MAX ADI LATE 102 VERY GOOD5 VERY POOR 62 GOOD
MAX LVORI EARLY 2 3 3
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ020-172030-
BEAVER-
INCLUDING THE CITIES OF ALIQUIPPA, BEAVER FALLS, AMBRIDGE,
AND MONACA
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 50 40 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 30 (-33) 17 (-15) 38
RH % (24H TREND) 42 (-33) 72 (-26) 38
WIND 20FT/EARLY(MPH) W 11 G22 W 5 LGT/VAR
WIND 20FT/LATE(MPH) W 11 G20 LGT/VAR S 7
PRECIP AMOUNT 0.04 0.01 0.00
PRECIP DURATION 2 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1880 1370
MIXING HGT(FT-AGL/MSL)6170 4480
TRANSPORT WND (MPH) W 25 S 18
VENT RATE (KT-FT) 135740 71680
CATEGORY DAY 5 4
INVERSION 22F/6AM 9PM 21F/9AM
DISPERSION 5 4
MAX ADI EARLY 78 GOOD 28 FAIR 49 GEN GOOD
MAX ADI LATE 84 GOOD 4 VERY POOR 62 GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ021-172030-
ALLEGHENY-
INCLUDING THE CITY OF PITTSBURGH METRO AREA
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 50 40 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 30 (-36) 16 (-15) 38
RH % (24H TREND) 45 (-28) 76 (-22) 39
WIND 20FT/EARLY(MPH) W 12 G22 W 7 G17 LGT/VAR
WIND 20FT/LATE(MPH) W 13 G22 LGT/VAR S 7
PRECIP AMOUNT 0.06 0.01 0.00
PRECIP DURATION 2 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1760 1330
MIXING HGT(FT-AGL/MSL)5790 4350
TRANSPORT WND (MPH) W 24 S 18
VENT RATE (KT-FT) 121590 69600
CATEGORY DAY 5 4
INVERSION 22F/6AM 10PM 21F/9AM
DISPERSION 5 4
MAX ADI EARLY 71 GOOD 31 FAIR 44 GEN GOOD
MAX ADI LATE 80 GOOD 5 VERY POOR 58 GEN GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ022-172030-
ARMSTRONG-
INCLUDING THE CITIES OF KITTANNING AND FORD CITY
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 50 40 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 30 (-34) 14 (-14) 38
RH % (24H TREND) 48 (-30) 79 (-20) 41
WIND 20FT/EARLY(MPH) W 12 G23 W 6 G17 LGT/VAR
WIND 20FT/LATE(MPH) W 12 G22 LGT/VAR S 6
PRECIP AMOUNT 0.03 0.01 0.00
PRECIP DURATION 2 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1930 1370
MIXING HGT(FT-AGL/MSL)6350 4510
TRANSPORT WND (MPH) W 28 S 17
VENT RATE (KT-FT) 152400 67650
CATEGORY DAY 5 4
INVERSION 20F/6AM 8PM 19F/9AM
DISPERSION 5 4
MAX ADI EARLY 85 GOOD 31 FAIR 42 GEN GOOD
MAX ADI LATE 93 GOOD 4 VERY POOR 55 GEN GOOD
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ029-172030-
WASHINGTON-
INCLUDING THE CITIES OF WASHINGTON AND CANONSBURG
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY MCLEAR PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 50 30 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 30 (-34) 16 (-15) 38
RH % (24H TREND) 45 (-26) 75 (-24) 37
WIND 20FT/EARLY(MPH) W 12 G23 W 7 G17 LGT/VAR
WIND 20FT/LATE(MPH) W 13 G21 LGT/VAR S 7
PRECIP AMOUNT 0.07 0.00 0.00
PRECIP DURATION 2 0
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1720 1360
MIXING HGT(FT-AGL/MSL)5640 4450
TRANSPORT WND (MPH) W 24 S 18
VENT RATE (KT-FT) 118440 71200
CATEGORY DAY 5 4
INVERSION 22F/6AM 8PM 21F/9AM
DISPERSION 5 4
MAX ADI EARLY 68 GOOD 28 FAIR 44 GEN GOOD
MAX ADI LATE 79 GOOD 4 VERY POOR 58 GEN GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ031-172030-
GREENE-
INCLUDING THE CITY OF WAYNESBURG
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 70 40 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 30 (-35) 16 (-15) 39
RH % (24H TREND) 47 (-23) 76 (-22) 37
WIND 20FT/EARLY(MPH) W 11 G22 W 6 G17 LGT/VAR
WIND 20FT/LATE(MPH) W 11 G21 LGT/VAR S 6
PRECIP AMOUNT 0.06 0.00 0.00
PRECIP DURATION 6 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1700 1340
MIXING HGT(FT-AGL/MSL)5580 4390
TRANSPORT WND (MPH) W 25 S 18
VENT RATE (KT-FT) 122760 70240
CATEGORY DAY 5 4
INVERSION 22F/6AM 8PM 21F/9AM
DISPERSION 5 4
MAX ADI EARLY 67 GOOD 31 FAIR 42 GEN GOOD
MAX ADI LATE 81 GOOD 4 VERY POOR 57 GEN GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ073-172030-
WESTMORELAND-
INCLUDING THE CITIES OF MURRYSVILLE, GREENSBURG, NEW KENSINGTON,
LOWER BURRELL, LATROBE, AND MONESSEN
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 50 40 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 30 (-37) 14 (-16) 39
RH % (24H TREND) 49 (-24) 80 (-19) 38
WIND 20FT/EARLY(MPH) W 14 G23 W 7 G17 LGT/VAR
WIND 20FT/LATE(MPH) W 14 G23 LGT/VAR S 6
PRECIP AMOUNT 0.06 0.01 0.00
PRECIP DURATION 2 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1700 1330
MIXING HGT(FT-AGL/MSL)5580 4360
TRANSPORT WND (MPH) W 25 S 17
VENT RATE (KT-FT) 122760 65400
CATEGORY DAY 5 4
INVERSION 22F/6AM 8PM 20F/9AM
DISPERSION 5 4
MAX ADI EARLY 71 GOOD 29 FAIR 38 FAIR
MAX ADI LATE 78 GOOD 4 VERY POOR 52 GEN GOOD
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ074-172030-
HIGHER ELEVATIONS OF WESTMORELAND-
INCLUDING THE CITIES OF LIGONIER AND DONEGAL
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 50 40 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 30 (-36) 14 (-13) 38
RH % (24H TREND) 48 (-28) 73 (-26) 36
WIND 20FT/EARLY(MPH) W 14 G27 W 7 G21 LGT/VAR
WIND 20FT/LATE(MPH) W 13 G24 LGT/VAR S 5
PRECIP AMOUNT 0.10 0.02 0.00
PRECIP DURATION 2 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1780 1550
MIXING HGT(FT-AGL/MSL)5840 5090
TRANSPORT WND (MPH) W 28 S 16
VENT RATE (KT-FT) 140160 71260
CATEGORY DAY 5 4
INVERSION 20F/6AM 8PM 20F/9AM
DISPERSION 5 4
MAX ADI EARLY 80 GOOD 32 FAIR 35 FAIR
MAX ADI LATE 88 GOOD 5 VERY POOR 65 GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ075-172030-
FAYETTE-
INCLUDING THE CITY OF UNIONTOWN
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 60 40 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 30 (-37) 15 (-15) 40
RH % (24H TREND) 47 (-19) 77 (-19) 36
WIND 20FT/EARLY(MPH) W 11 G22 W 6 LGT/VAR
WIND 20FT/LATE(MPH) W 12 G20 LGT/VAR S 5
PRECIP AMOUNT 0.08 0.00 0.00
PRECIP DURATION 3 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1710 1320
MIXING HGT(FT-AGL/MSL)5630 4330
TRANSPORT WND (MPH) W 24 S 16
VENT RATE (KT-FT) 118230 60620
CATEGORY DAY 5 4
INVERSION 23F/6AM 8PM 21F/9AM
DISPERSION 5 4
MAX ADI EARLY 68 GOOD 31 FAIR 38 FAIR
MAX ADI LATE 79 GOOD 4 VERY POOR 49 GEN GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ076-172030-
HIGHER ELEVATIONS OF FAYETTE-
INCLUDING THE CITIES OF CHAMPION AND OHIOPYLE
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 70 40 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 28 (-37) 13 (-14) 38
RH % (24H TREND) 51 (-24) 76 (-23) 36
WIND 20FT/EARLY(MPH) W 10 G23 W 6 G18 LGT/VAR
WIND 20FT/LATE(MPH) W 10 G22 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.14 0.01 0.00
PRECIP DURATION 5 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1670 1350
MIXING HGT(FT-AGL/MSL)5480 4430
TRANSPORT WND (MPH) W 25 S 17
VENT RATE (KT-FT) 120560 66450
CATEGORY DAY 5 4
INVERSION 19F/6AM 8PM 18F/9AM
DISPERSION 5 4
MAX ADI EARLY 74 GOOD 34 FAIR 31 FAIR
MAX ADI LATE 80 GOOD 5 VERY POOR 67 GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 2 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ077-172030-
INDIANA-
INCLUDING THE CITY OF INDIANA
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 50 40 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 30 (-36) 14 (-14) 38
RH % (24H TREND) 49 (-26) 77 (-22) 39
WIND 20FT/EARLY(MPH) W 14 G28 W 7 G19 LGT/VAR
WIND 20FT/LATE(MPH) W 13 G24 LGT/VAR S 6
PRECIP AMOUNT 0.04 0.01 0.00
PRECIP DURATION 2 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1900 1460
MIXING HGT(FT-AGL/MSL)6250 4800
TRANSPORT WND (MPH) W 29 S 17
VENT RATE (KT-FT) 156250 72000
CATEGORY DAY 5 4
INVERSION 20F/6AM 8PM 19F/9AM
DISPERSION 5 4
MAX ADI EARLY 89 GOOD 33 FAIR 41 GEN GOOD
MAX ADI LATE 98 GOOD 5 VERY POOR 67 GOOD
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ078-172030-
HIGHER ELEVATIONS OF INDIANA-
INCLUDING THE CITY OF ARMAGH
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 60 50 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 29 (-37) 14 (-14) 37
RH % (24H TREND) 49 (-26) 75 (-24) 39
WIND 20FT/EARLY(MPH) W 14 G29 W 7 G20 LGT/VAR
WIND 20FT/LATE(MPH) W 13 G25 LGT/VAR S 6
PRECIP AMOUNT 0.07 0.02 0.00
PRECIP DURATION 2 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1800 1510
MIXING HGT(FT-AGL/MSL)5900 4950
TRANSPORT WND (MPH) W 28 S 16
VENT RATE (KT-FT) 141600 69300
CATEGORY DAY 5 4
INVERSION 20F/6AM 8PM 19F/9AM
DISPERSION 5 4
MAX ADI EARLY 89 GOOD 33 FAIR 35 FAIR
MAX ADI LATE 92 GOOD 6 VERY POOR 63 GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ001-172030-
HANCOCK-
INCLUDING THE CITY OF WEIRTON
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 50 40 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 29 (-33) 17 (-15) 38
RH % (24H TREND) 41 (-29) 68 (-30) 36
WIND 20FT/EARLY(MPH) W 11 G22 W 6 LGT/VAR
WIND 20FT/LATE(MPH) W 11 G20 LGT/VAR S 7
PRECIP AMOUNT 0.05 0.00 0.00
PRECIP DURATION 2 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1880 1390
MIXING HGT(FT-AGL/MSL)6180 4550
TRANSPORT WND (MPH) W 24 S 18
VENT RATE (KT-FT) 129780 72800
CATEGORY DAY 5 4
INVERSION 22F/6AM 9PM 21F/9AM
DISPERSION 5 4
MAX ADI EARLY 72 GOOD 30 FAIR 56 GEN GOOD
MAX ADI LATE 79 GOOD 4 VERY POOR 64 GOOD
MAX LVORI EARLY 2 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ002-172030-
BROOKE-
INCLUDING THE CITIES OF FOLLANSBEE AND WELLSBURG
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 60 30 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 30 (-32) 18 (-15) 39
RH % (24H TREND) 42 (-24) 68 (-31) 35
WIND 20FT/EARLY(MPH) W 11 G22 W 6 G17 LGT/VAR
WIND 20FT/LATE(MPH) W 12 G21 LGT/VAR S 7
PRECIP AMOUNT 0.08 0.00 0.00
PRECIP DURATION 3 0
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1890 1400
MIXING HGT(FT-AGL/MSL)6210 4600
TRANSPORT WND (MPH) W 23 S 18
VENT RATE (KT-FT) 124200 73600
CATEGORY DAY 5 4
INVERSION 23F/6AM 9PM 22F/9AM
DISPERSION 5 4
MAX ADI EARLY 68 GOOD 30 FAIR 46 GEN GOOD
MAX ADI LATE 81 GOOD 5 VERY POOR 60 GEN GOOD
MAX LVORI EARLY 3 2 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ003-172030-
OHIO-
INCLUDING THE CITY OF WHEELING
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY MCLEAR PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 40 20 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 30 (-32) 17 (-16) 39
RH % (24H TREND) 43 (-23) 72 (-26) 36
WIND 20FT/EARLY(MPH) W 12 G22 W 7 G17 LGT/VAR
WIND 20FT/LATE(MPH) W 12 G21 LGT/VAR S 7
PRECIP AMOUNT 0.06 0.00 0.00
PRECIP DURATION 2 0
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 8 PM
MIXING HGT(M-AGL/MSL) 1790 1380
MIXING HGT(FT-AGL/MSL)5870 4520
TRANSPORT WND (MPH) W 25 S 18
VENT RATE (KT-FT) 129140 72320
CATEGORY DAY 5 4
INVERSION 23F/6AM 8PM 21F/9AM
DISPERSION 5 4
MAX ADI EARLY 64 GOOD 29 FAIR 45 GEN GOOD
MAX ADI LATE 80 GOOD 4 VERY POOR 59 GEN GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ004-172030-
MARSHALL-
INCLUDING THE CITY OF MOUNDSVILLE
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 60 30 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 30 (-32) 17 (-16) 40
RH % (24H TREND) 45 (-22) 73 (-26) 38
WIND 20FT/EARLY(MPH) W 10 G22 W 6 G17 LGT/VAR
WIND 20FT/LATE(MPH) W 11 G21 LGT/VAR S 6
PRECIP AMOUNT 0.06 0.00 0.00
PRECIP DURATION 4 0
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 8 PM
MIXING HGT(M-AGL/MSL) 1770 1390
MIXING HGT(FT-AGL/MSL)5790 4540
TRANSPORT WND (MPH) W 25 S 18
VENT RATE (KT-FT) 127380 72640
CATEGORY DAY 5 4
INVERSION 23F/6AM 9PM 22F/9AM
DISPERSION 5 4
MAX ADI EARLY 64 GOOD 30 FAIR 48 GEN GOOD
MAX ADI LATE 81 GOOD 4 VERY POOR 59 GEN GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ012-172030-
WETZEL-
INCLUDING THE CITY OF NEW MARTINSVILLE
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 50 40 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 30 (-32) 17 (-15) 41
RH % (24H TREND) 46 (-21) 74 (-26) 39
WIND 20FT/EARLY(MPH) W 9 G22 W 6 G17 LGT/VAR
WIND 20FT/LATE(MPH) W 9 G21 LGT/VAR S 5
PRECIP AMOUNT 0.07 0.01 0.00
PRECIP DURATION 2 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1750 1380
MIXING HGT(FT-AGL/MSL)5740 4530
TRANSPORT WND (MPH) W 24 S 17
VENT RATE (KT-FT) 120540 67950
CATEGORY DAY 5 4
INVERSION 23F/6AM 10PM 21F/9AM
DISPERSION 5 4
MAX ADI EARLY 66 GOOD 30 FAIR 45 GEN GOOD
MAX ADI LATE 77 GOOD 5 VERY POOR 53 GEN GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ021-172030-
MARION-
INCLUDING THE CITY OF FAIRMONT
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 40 30 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 30 (-35) 16 (-15) 40
RH % (24H TREND) 49 (-19) 77 (-20) 37
WIND 20FT/EARLY(MPH) W 9 G21 W 6 G17 LGT/VAR
WIND 20FT/LATE(MPH) W 10 G20 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.05 0.01 0.00
PRECIP DURATION 2 0
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1680 1300
MIXING HGT(FT-AGL/MSL)5520 4270
TRANSPORT WND (MPH) W 24 S 17
VENT RATE (KT-FT) 115920 64050
CATEGORY DAY 5 4
INVERSION 22F/6AM 11PM 21F/9AM
DISPERSION 5 4
MAX ADI EARLY 69 GOOD 31 FAIR 46 GEN GOOD
MAX ADI LATE 79 GOOD 5 VERY POOR 51 GEN GOOD
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ509-172030-
MONONGALIA-
INCLUDING THE CITY OF MORGANTOWN
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 50 30 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 30 (-36) 16 (-16) 40
RH % (24H TREND) 48 (-18) 76 (-22) 35
WIND 20FT/EARLY(MPH) W 10 G21 W 5 G17 LGT/VAR
WIND 20FT/LATE(MPH) W 9 G20 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.07 0.00 0.00
PRECIP DURATION 2 0
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1710 1300
MIXING HGT(FT-AGL/MSL)5630 4270
TRANSPORT WND (MPH) W 24 S 17
VENT RATE (KT-FT) 118230 64050
CATEGORY DAY 5 4
INVERSION 22F/6AM 10PM 21F/9AM
DISPERSION 5 4
MAX ADI EARLY 68 GOOD 31 FAIR 41 GEN GOOD
MAX ADI LATE 79 GOOD 4 VERY POOR 50 GEN GOOD
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ510-172030-
RIDGES OF EASTERN MONONGALIA AND NORTHWESTERN PRESTON-
INCLUDING THE CITY OF COOPERS ROCK
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 60 30 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 28 (-36) 13 (-16) 38
RH % (24H TREND) 52 (-19) 78 (-22) 35
WIND 20FT/EARLY(MPH) W 11 G22 W 6 G17 LGT/VAR
WIND 20FT/LATE(MPH) W 9 G20 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.09 0.00 0.00
PRECIP DURATION 3 0
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1580 1130
MIXING HGT(FT-AGL/MSL)5180 3720
TRANSPORT WND (MPH) W 26 S 16
VENT RATE (KT-FT) 119140 52080
CATEGORY DAY 5 3
INVERSION 19F/6AM 10PM 18F/9AM
DISPERSION 5 3
MAX ADI EARLY 69 GOOD 32 FAIR 33 FAIR
MAX ADI LATE 81 GOOD 6 VERY POOR 45 GEN GOOD
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 2 4 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ511-172030-
PRESTON-
INCLUDING THE CITIES OF KINGWOOD AND BRUCETON MILLS
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 50 30 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 27 (-38) 13 (-16) 39
RH % (24H TREND) 52 (-17) 79 (-21) 34
WIND 20FT/EARLY(MPH) W 9 G22 W 5 G17 LGT/VAR
WIND 20FT/LATE(MPH) W 9 G20 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.11 0.01 0.00
PRECIP DURATION 2 0
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1690 1290
MIXING HGT(FT-AGL/MSL)5560 4240
TRANSPORT WND (MPH) W 26 S 16
VENT RATE (KT-FT) 127880 59360
CATEGORY DAY 5 4
INVERSION 19F/6AM 2AM 19F/9AM
DISPERSION 5 4
MAX ADI EARLY 77 GOOD 31 FAIR 38 FAIR
MAX ADI LATE 86 GOOD 5 VERY POOR 55 GEN GOOD
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 2 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ512-172030-
EASTERN PRESTON-
INCLUDING THE CITIES OF TERRA ALTA, ROWLESBURG, AND HAZELTON
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 60 30 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 26 (-38) 12 (-14) 38
RH % (24H TREND) 53 (-16) 80 (-20) 35
WIND 20FT/EARLY(MPH) W 12 G27 W 7 G19 LGT/VAR
WIND 20FT/LATE(MPH) W 11 G23 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.13 0.01 0.00
PRECIP DURATION 4 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1640 1290
MIXING HGT(FT-AGL/MSL)5400 4230
TRANSPORT WND (MPH) W 29 SW 16
VENT RATE (KT-FT) 135000 59220
CATEGORY DAY 5 4
INVERSION 18F/6AM 1AM 17F/9AM
DISPERSION 5 4
MAX ADI EARLY 81 GOOD 33 FAIR 30 FAIR
MAX ADI LATE 89 GOOD 7 POOR 50 GEN GOOD
MAX LVORI EARLY 4 3 4
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ513-172030-
WESTERN TUCKER-
INCLUDING THE CITIES OF PARSONS, HENDRICKS, AND SAINT GEORGE
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 70 40 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 28 (-37) 11 (-16) 40
RH % (24H TREND) 51 (-13) 79 (-18) 32
WIND 20FT/EARLY(MPH) W 11 G25 W 6 G20 LGT/VAR
WIND 20FT/LATE(MPH) W 10 G23 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.12 0.01 0.00
PRECIP DURATION 4 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1740 1450
MIXING HGT(FT-AGL/MSL)5720 4750
TRANSPORT WND (MPH) W 29 SW 14
VENT RATE (KT-FT) 143000 57000
CATEGORY DAY 5 4
INVERSION 18F/6AM 2AM 18F/9AM
DISPERSION 5 4
MAX ADI EARLY 82 GOOD 33 FAIR 33 FAIR
MAX ADI LATE 92 GOOD 6 VERY POOR 46 GEN GOOD
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 2 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ514-172030-
EASTERN TUCKER-
INCLUDING THE CITIES OF DAVIS, THOMAS, AND CANAAN VALLEY
303 AM EDT TUE MAR 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE
CHANCE PRECIP (%) 70 40 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 24 (-37) 9 (-14) 36
RH % (24H TREND) 61 (-6) 82 (-16) 38
WIND 20FT/EARLY(MPH) W 14 G40 W 9 G28 LGT/VAR
WIND 20FT/LATE(MPH) W 12 G33 W 5 G19 S 5
PRECIP AMOUNT 0.14 0.02 0.00
PRECIP DURATION 5 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 1620 1460
MIXING HGT(FT-AGL/MSL)5330 4790
TRANSPORT WND (MPH) W 32 SW 15
VENT RATE (KT-FT) 149240 62270
CATEGORY DAY 5 4
INVERSION 15F/6AM 12AM 15F/9AM
DISPERSION 5 4
MAX ADI EARLY 84 GOOD 39 FAIR 26 FAIR
MAX ADI LATE 96 GOOD 13 GEN POOR 45 GEN GOOD
MAX LVORI EARLY 4 3 4
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY
MOSTLY CLOUDY. LOWS AROUND 30. HIGHS AROUND 50. SOUTH
WINDS AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE UPPER
50S. SOUTH WINDS AROUND 5 MPH.
SATURDAY
MOSTLY CLOUDY. A CHANCE OF RAIN. LOWS AROUND 40.
HIGHS IN THE UPPER 50S. SOUTHWEST WINDS 10 TO 15 MPH.
SUNDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE
LOWER 60S. WEST WINDS 10 TO 15 MPH.
MONDAY
MOSTLY CLOUDY. A CHANCE OF RAIN. COOLER. LOWS IN THE
MID 30S. HIGHS IN THE UPPER 40S. NORTHWEST WINDS 10 TO 15 MPH.
LUPO
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