251  
FNUS71 KPBZ 120806  
FWSPBZ  
 
SPOT FORECAST FOR SGL 262 CLARK GATE...PA GAME COMMISSION  
NATIONAL WEATHER SERVICE PITTSBURGH PA  
406 AM EDT MON AUG 12 2019  
 
FORECAST IS BASED ON IGNITION TIME OF 0500 EDT ON AUGUST 12.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE AT (412) 262-1485, IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION
 
 
DRY WEATHER AND WARMER TEMPERATURES ARE EXPECTED TODAY. WIND AND RH  
SHOULD NOT PROVIDE AN IMPEDIMENT TO THE BURN. MOISTURE WILL  
THEN INCREASE AHEAD OF A SLOW-MOVING COLD FRONT, BRINGING SHOWERS AND  
THUNDERSTORMS BACK TO OUR AREA LATER TONIGHT AND TUESDAY. SOME HEAVY  
RAINFALL TOTALS ARE POSSIBLE, AND A FEW STORMS MAY BE STRONG.  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT).  
CHANCE OF PCPN......10 PERCENT.  
LAL.................NO TSTMS.  
MAX TEMPERATURE.....AROUND 82.  
MIN HUMIDITY........44 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 6 MPH IN  
THE AFTERNOON.  
MIXING HEIGHT.......4200 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 2 TO 9 MPH INCREASING TO AROUND 12  
MPH LATE IN THE AFTERNOON.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........45 47 49 47 45 44 42 40 38 41 44 47  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0 0 0 10 10 10 10  
LAL.............1 1 1 1 1 1 1 1 1 1 1 1  
TEMP............59 60 62 67 71 75 77 79 80 81 82 82  
RH..............87 86 83 73 65 59 57 53 47 48 48 44  
20 FT WIND DIR..S SE SE S S SW SW SW SW SW SW SW  
20 FT WIND SPD..2 2 2 2 2 3 3 4 4 5 6 6  
20 FT WIND GUST.4 4 4 6 6 7 8 10 10  
MIX HGT (KFT)...0.1 0.1 0.1 1.0 2.1 3.1 3.6 3.8 3.8 4.1 4.2 3.9  
TRANSP WIND DIR.SE SE SE S S SW SW SW SW SW SW SW  
TRANSP WIND SPD.2 2 2 5 6 8 8 8 8 9 12 12  
HAINES INDEX....5 5 5 5 5 5 5 5 5 5 5 5  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS OVERNIGHT. CHANCE OF  
SHOWERS AND THUNDERSTORMS AFTER 3 AM.  
CHANCE OF PCPN......40 PERCENT.  
LAL.................NO TSTMS UNTIL 0100, THEN 1-8 STRIKES.  
MIN TEMPERATURE.....AROUND 66.  
MAX HUMIDITY........84 PERCENT.  
WIND (20 FT)........SOUTHWEST WINDS AROUND 5 MPH EARLY IN THE  
EVENING BECOMING LIGHT. GUSTY AND ERRATIC WINDS  
EXPECTED NEAR THUNDERSTORMS OVERNIGHT.  
MIXING HEIGHT.......0 FT AGL.  
TRANSPORT WINDS.....SOUTHEAST 1 TO 9 MPH.  
HAINES INDEX........3 TO 5 OR VERY LOW TO MODERATE POTENTIAL FOR  
LARGE PLUME DOMINATED FIRE GROWTH.  
 
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........53 60 66 65 63 62 67 73 78 81 84 88  
WEATHER COV..... SCH SCH CHC CHC CHC  
WEATHER TYPE.... RW RW RW RW RW  
TSTM COV........ SCH SCH CHC CHC CHC  
CHC OF PCPN (%).10 10 10 10 10 10 10 20 20 30 30 40  
LAL.............1 1 1 1 1 2 2 2 2 2 2 2  
TEMP............80 78 76 74 71 69 68 67 67 67 67 67  
RH..............48 53 58 67 73 77 80 81 81 82 83 84  
20 FT WIND DIR..SW SW SW SW SW SW SW SW S S S S  
20 FT WIND SPD..5 4 3 3 3 3 3 2 2 3 3 3  
20 FT WIND GUST.8 6 6 5 5 4 4 4 4 4 4 5  
MIX HGT (KFT)...2.7 1.3 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1  
TRANSP WIND DIR.SW SW SW SW S S S S S S S SE  
TRANSP WIND SPD.9 6 2 1 2 2 2 2 2 2 2 2  
HAINES INDEX....5 5 5 5 5 4 4 4 4 4 4 3  
   
TUESDAY
 
 
SKY/WEATHER.........CLOUDY (90-100 PERCENT). SHOWERS AND CHANCE OF  
THUNDERSTORMS IN THE MORNING, THEN SHOWERS AND  
THUNDERSTORMS LIKELY IN THE AFTERNOON.  
CHANCE OF PCPN......80 PERCENT.  
LAL.................1-8 STRIKES UNTIL 1200, THEN 9-15 STRIKES.  
MAX TEMPERATURE.....AROUND 77.  
MIN HUMIDITY........77 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING WEST 5 TO 8 MPH EARLY IN  
THE MORNING. GUSTY AND ERRATIC WINDS EXPECTED  
NEAR THUNDERSTORMS EARLY IN THE MORNING. GUSTY  
AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS  
LATE IN THE MORNING, THEN GUSTY AND ERRATIC  
WINDS EXPECTED NEAR THUNDERSTORMS EARLY IN THE  
AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED  
NEAR THUNDERSTORMS LATE IN THE AFTERNOON.  
MIXING HEIGHT.......3000 FT AGL.  
TRANSPORT WINDS.....SOUTH 0 TO 7 MPH INCREASING TO 10 TO 18 MPH  
LATE IN THE MORNING, THEN SHIFTING TO THE WEST  
13 TO 21 MPH LATE IN THE AFTERNOON.  
HAINES INDEX........2 TO 3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........91 95 98 99 99 100 98 97 96 95 94 93  
WEATHER COV.....CHC CHC LKY LKY DEF DEF LKY LKY LKY LKY LKY CHC  
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW  
TSTM COV........CHC CHC CHC CHC CHC CHC LKY LKY LKY LKY LKY CHC  
CHC OF PCPN (%).50 50 60 70 80 80 70 70 70 60 60 50  
LAL.............2 2 2 2 2 2 3 3 3 3 3 3  
TEMP............66 66 66 67 69 72 73 75 76 77 77 77  
RH..............88 92 94 92 89 85 83 81 80 78 77 78  
20 FT WIND DIR..S S S S SW SW S SW SW W W W  
20 FT WIND SPD..3 3 4 4 4 4 4 7 7 6 6 6  
20 FT WIND GUST.5 5 6 6 6 10 10 11 11 11 10 8  
MIX HGT (KFT)...0.1 0.1 0.1 0.2 0.4 0.6 0.7 0.9 1.2 1.9 2.6 3.0  
TRANSP WIND DIR.SE S S S S S S SW SW SW W W  
TRANSP WIND SPD.1 0 0 2 7 10 15 18 21 20 16 13  
HAINES INDEX....3 3 3 3 3 2 2 2 3 3 3 3  
 

 
FORECASTER...CL  
REQUESTED BY...JOSH FUQUA  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1913672.0/PBZ  
.DELDT 08/12/19  
.FORMATTERVERSION 1.0.26  
.EMAIL JOFUQUA@PA.GOV  
 
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