488  
FNUS51 KPBZ 201852  
FWFPBZ  
 
FIRE WEATHER PLANNING FORECAST FOR PENNSYLVANIA  
NATIONAL WEATHER SERVICE PITTSBURGH PA  
152 PM EST SUN JAN 20 2019  
   
DISCUSSION
 
 
OLD MAN WINTER IS HERE! BITTERLY COLD TEMPERATURES TONIGHT AND  
MONDAY NIGHT. WIND CHILLS WILL BE THE LOWEST TONIGHT. THE ACTIVE  
WEATHER PATTERN ROLLS ON WITH THE NEXT SYSTEM MIDWEEK. THERE COULD  
BE A WINTRY MIX WEDNESDAY MORNING FOR PARTS OF THE AREA. A BRIEF  
WARM UP TO ABOVE NORMAL TEMPERATURES WEDNESDAY, BEFORE A RETURN OF  
ARCTIC AIR FOR LATE WEEK.  
 
PAZ021-029-031-073>076-210915-  
ALLEGHENY-WASHINGTON-GREENE-WESTMORELAND-WESTMORELAND RIDGES-  
FAYETTE-FAYETTE RIDGES-  
INCLUDING THE CITIES OF PITTSBURGH METRO AREA, WASHINGTON,  
CANONSBURG, WAYNESBURG, MURRYSVILLE, GREENSBURG, NEW KENSINGTON,  
LIGONIER, DONEGAL, UNIONTOWN, CHAMPION, AND OHIOPYLE  
152 PM EST SUN JAN 20 2019  
 
TONIGHT MON MON NIGHT TUE  
 
CLOUD COVER MCLDY PCLDY MCLEAR PCLDY  
PRECIP TYPE SNOW SHOWERS NONE NONE NONE  
CHANCE PRECIP (%) 30 0 0 0  
TEMP (24H TREND) 0 (-22) 13 (-9) 0 35  
RH % (24H TREND) 80 (-19) 63 (-2) 84 42  
20FT WND-VAL/AM(MPH) NW 10 G22 LGT/VAR  
20FT WND-RDG/PM(MPH) NW 11 G26 NW 8 G20 LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.02 0.00 0.00 0.00  
PRECIP DURATION 2  
PRECIP BEGIN 6 PM  
PRECIP END 6 AM  
MIXING HGT(M-AGL/MSL) 1250 260  
MIXING HGT(FT-AGL/MSL) 4090 860  
TRANSPORT WND (MPH) NW 23 S 15  
VENT RATE (KT-FT) 81800 11180  
DISPERSION 4 1  
LAL 1 1 1 1  
HAINES INDEX 3 3 4 4  
 
REMARKS...NONE.  
 

 
 
WVZ001>004-012-021-210915-  
HANCOCK-BROOKE-OHIO-MARSHALL-WETZEL-MARION-  
INCLUDING THE CITIES OF WEIRTON, FOLLANSBEE, WELLSBURG, WHEELING,  
MOUNDSVILLE, NEW MARTINSVILLE, AND FAIRMONT  
152 PM EST SUN JAN 20 2019  
 
TONIGHT MON MON NIGHT TUE  
 
CLOUD COVER MCLDY PCLDY MCLEAR PCLDY  
PRECIP TYPE SNOW SHOWERS NONE NONE NONE  
CHANCE PRECIP (%) 30 0 0 0  
TEMP (24H TREND) 0 (-21) 13 (-9) 1 38  
RH % (24H TREND) 79 (-20) 58 (-4) 83 36  
20FT WND-VAL/AM(MPH) W 7 LGT/VAR  
20FT WND-RDG/PM(MPH) NW 10 G19 NW 6 LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.01 0.00 0.00 0.00  
PRECIP DURATION 1  
PRECIP BEGIN 6 PM  
PRECIP END 1 AM  
MIXING HGT(M-AGL/MSL) 1160 380  
MIXING HGT(FT-AGL/MSL) 3810 1240  
TRANSPORT WND (MPH) NW 17 S 14  
VENT RATE (KT-FT) 57150 14880  
DISPERSION 4 2  
LAL 1 1 1 1  
HAINES INDEX 3 4 4 4  
 
REMARKS...NONE.  
 

 
 
MDZ001-WVZ509>514-210915-  
GARRETT-MONONGALIA-  
RIDGES OF EASTERN MONONGALIA AND NORTHWESTERN PRESTON-PRESTON-  
EASTERN PRESTON-WESTERN TUCKER-EASTERN TUCKER-  
INCLUDING THE CITIES OF MOUNTAIN LAKE PARK, OAKLAND MD,  
GRANTSVILLE, MORGANTOWN, COOPERS ROCK, KINGWOOD, BRUCETON MILLS,  
TERRA ALTA, ROWLESBURG, HAZELTON, PARSONS, HENDRICKS,  
SAINT GEORGE, DAVIS, THOMAS, AND CANAAN VALLEY  
152 PM EST SUN JAN 20 2019  
 
TONIGHT MON MON NIGHT TUE  
 
CLOUD COVER MCLDY PCLDY MCLEAR PCLDY  
PRECIP TYPE SNOW SHOWERS FLURRIES NONE NONE  
CHANCE PRECIP (%) 30 20 0 0  
TEMP (24H TREND) -3 (-28) 11 (-16) 0 36  
RH % (24H TREND) 83 (-15) 63 (-10) 83 35  
20FT WND-VAL/AM(MPH) W 13 G28 LGT/VAR  
20FT WND-RDG/PM(MPH) NW 14 G34 NW 10 G25 W 5 G19 SE 5  
PRECIP AMOUNT 0.03 0.01 0.00 0.00  
PRECIP DURATION 2 11  
PRECIP BEGIN 6 PM CONTINUING  
PRECIP END CONTINUING 6 PM  
MIXING HGT(M-AGL/MSL) 1050 250  
MIXING HGT(FT-AGL/MSL) 3440 810  
TRANSPORT WND (MPH) NW 28 S 13  
VENT RATE (KT-FT) 82560 8910  
DISPERSION 4 1  
LAL 1 1 1 1  
HAINES INDEX 3 3 4 4  
 
REMARKS...NONE.  
 

 
 
OHZ057>059-068-069-210915-  
MUSKINGUM-GUERNSEY-BELMONT-NOBLE-MONROE-  
INCLUDING THE CITIES OF ZANESVILLE, CAMBRIDGE, MARTINS FERRY,  
ST. CLAIRSVILLE, CALDWELL, AND WOODSFIELD  
152 PM EST SUN JAN 20 2019  
 
TONIGHT MON MON NIGHT TUE  
 
CLOUD COVER PCLDY MCLEAR MCLEAR PCLDY  
PRECIP TYPE SNOW SHOWERS NONE NONE NONE  
CHANCE PRECIP (%) 20 0 0 0  
TEMP (24H TREND) -3 (-21) 13 (-6) 0 36  
RH % (24H TREND) 80 (-18) 59 (-4) 84 38  
20FT WND-VAL/AM(MPH) NW 5 LGT/VAR  
20FT WND-RDG/PM(MPH) NW 9 G19 LGT/VAR LGT/VAR SE 5  
PRECIP AMOUNT 0.00 0.00 0.00 0.00  
PRECIP DURATION 0  
PRECIP BEGIN 6 PM  
PRECIP END 9 PM  
MIXING HGT(M-AGL/MSL) 1080 350  
MIXING HGT(FT-AGL/MSL) 3550 1140  
TRANSPORT WND (MPH) NW 13 S 17  
VENT RATE (KT-FT) 39050 17100  
DISPERSION 3 2  
LAL 1 1 1 1  
HAINES INDEX 3 4 4 4  
 
REMARKS...NONE.  
 

 
 
OHZ039>041-048>050-210915-  
TUSCARAWAS-CARROLL-COLUMBIANA-COSHOCTON-HARRISON-JEFFERSON-  
INCLUDING THE CITIES OF NEW PHILADELPHIA, DOVER, CARROLLTON,  
MALVERN, EAST LIVERPOOL, SALEM, COLUMBIANA, COSHOCTON, CADIZ,  
AND STEUBENVILLE  
152 PM EST SUN JAN 20 2019  
 
TONIGHT MON MON NIGHT TUE  
 
CLOUD COVER MCLDY PCLDY MCLEAR PCLDY  
PRECIP TYPE SNOW SHOWERS NONE NONE NONE  
CHANCE PRECIP (%) 30 0 0 0  
TEMP (24H TREND) -3 (-19) 12 (-4) -2 35  
RH % (24H TREND) 82 (-14) 66 (-1) 88 44  
20FT WND-VAL/AM(MPH) NW 7 LGT/VAR  
20FT WND-RDG/PM(MPH) NW 9 G20 NW 5 LGT/VAR SE 5  
PRECIP AMOUNT 0.01 0.00 0.00 0.00  
PRECIP DURATION 2  
PRECIP BEGIN 6 PM  
PRECIP END 6 AM  
MIXING HGT(M-AGL/MSL) 1180 250  
MIXING HGT(FT-AGL/MSL) 3880 820  
TRANSPORT WND (MPH) NW 16 S 20  
VENT RATE (KT-FT) 54320 13940  
DISPERSION 4 2  
LAL 1 1 1 1  
HAINES INDEX 3 4 4 4  
 
REMARKS...NONE.  
 

 
 
PAZ007>009-013>016-020-022-023-210915-  
MERCER-VENANGO-FOREST-LAWRENCE-BUTLER-CLARION-JEFFERSON-BEAVER-  
ARMSTRONG-INDIANA-  
INCLUDING THE CITIES OF SHARON, HERMITAGE, GROVE CITY, OIL CITY,  
FRANKLIN, TIONESTA, NEW CASTLE, ELLWOOD CITY, BUTLER, CLARION,  
PUNXSUTAWNEY, BROOKVILLE, ALIQUIPPA, BEAVER FALLS, AMBRIDGE,  
MONACA, KITTANNING, FORD CITY, AND INDIANA  
152 PM EST SUN JAN 20 2019  
 
TONIGHT MON MON NIGHT TUE  
 
CLOUD COVER MCLDY PCLDY PCLDY PCLDY  
PRECIP TYPE SNOW SHOWERS SNOW SHOWERS NONE NONE  
CHANCE PRECIP (%) 20 10 0 0  
TEMP (24H TREND) -3 (-20) 11 (-7) -3 30  
RH % (24H TREND) 80 (-19) 64 (-4) 89 47  
20FT WND-VAL/AM(MPH) NW 10 G20 LGT/VAR  
20FT WND-RDG/PM(MPH) NW 10 G22 NW 9 G20 LGT/VAR SE 6  
PRECIP AMOUNT 0.01 0.00 0.00 0.00  
PRECIP DURATION 1 1  
PRECIP BEGIN 6 PM CONTINUING  
PRECIP END CONTINUING 3 PM  
MIXING HGT(M-AGL/MSL) 1140 280  
MIXING HGT(FT-AGL/MSL) 3750 920  
TRANSPORT WND (MPH) NW 26 S 18  
VENT RATE (KT-FT) 86250 14720  
DISPERSION 4 2  
LAL 1 1 1 1  
HAINES INDEX 3 5 4 4  
 
REMARKS...NONE.  
 

 
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY
 
RAIN, A CHANCE OF FREEZING RAIN AND SNOW. LOWS IN  
THE UPPER 20S. HIGHS IN THE LOWER 40S. SOUTHWEST WINDS 15 TO  
20 MPH.    
THURSDAY
 
RAIN WITH SNOW LIKELY. COLDER. LOWS AROUND 30. HIGHS  
IN THE LOWER 30S. WEST WINDS 10 TO 15 MPH.    
FRIDAY
 
MOSTLY CLOUDY WITH A CHANCE OF SNOW SHOWERS. COLDER.  
LOWS AROUND 16. HIGHS IN THE LOWER 20S. WEST WINDS 10 TO 15 MPH.    
SATURDAY
 
MOSTLY CLOUDY. A CHANCE OF SNOW SHOWERS. LOWS AROUND  
3. HIGHS AROUND 16. SOUTHWEST WINDS 10 TO 15 MPH.    
SUNDAY
 
MOSTLY CLOUDY WITH A CHANCE OF SNOW SHOWERS. LOWS  
AROUND 8. HIGHS IN THE LOWER 20S. SOUTHWEST WINDS 10 TO 15 MPH.  
 

 
 
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