FNUS71 KCTP 251419 FWSCTP SPOT FORECAST FOR TUNNEL HILL...PA BUREAU OF FORESTRY NATIONAL WEATHER SERVICE STATE COLLEGE PA 1019 AM EDT WED MAR 25 2009 FORECAST IS BASED ON REQUEST TIME OF 1012 EDT ON MARCH 25. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE IN STATE COLLEGE. ...RED FLAG WARNING IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... .DISCUSSION... A RIDGE OF HIGH PRESSURE WILL SLIDE TO THE EAST OF THE DISTRICT TODAY ALLOWING AN INCREASING SOUTHERLY FLOW OR AIR TO DEVELOP. IN ADDITION...VERY DRY AIR AND A BRIEF FEW HOUR PERIOD OF RELATIVE HUMIDITY IN THE 25 TO 35 PERCENT RANGE...WILL COMBINE WITH THE DRY FINE FUELS TO CREATE AN ELEVATED THREAT FOR WILDFIRE GROWTH AND SPREAD TODAY...MAINLY ACROSS THE HIGHER TERRAIN OF NORTHERN AND WESTERN PENNSYLVANIA DURING THE LATE MORNING HOURS. SOUTH TO SOUTHEAST WINDS OF 10 TO 15 MPH OVER THE LAUREL HIGHLANDS AND NORTHWEST MOUNTAINS...WILL INCREASE ACROSS THE REST OF THE REGION DURING THE LATE MORNING AND AFTERNOON HOURS. SOME GUSTS OF 20 TO 25 MPH WILL OCCUR ACROSS THE NORTHERN AND WESTERN MOUNTAINS THIS MORNING. LIGHT RAIN WILL MOVE INTO THE WESTERN MOUNTAINS LATER THIS AFTERNOON...AND OVERSPREAD THE REST OF CENTRAL PENNSYLVANIA AND THE SUSQUEHANNA VALLEY TONIGHT. STEADIER...RAIN WILL DEVELOP THURSDAY AFTERNOON INTO THURSDAY NIGHT AS A WAVE OF LOW PRESSURE MOVES NORTHEAST FROM THE TENNESSEE VALLEY. BETWEEN ONE QUARTER...AND ONE HALF OF AN INCH OF MUCH NEEDED RAINFALL IS LIKELY DURING THIS PERIOD. .TODAY... SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS LATE. MAX TEMPERATURE.....AROUND 50. MIN HUMIDITY........28 PERCENT. WIND (20 FT)........SOUTHEAST WINDS 5 TO 10 MPH. LAL.................NO TSTMS. MIXING WINDS........SOUTH 23 TO 32 MPH...DECREASING TO 22 TO 23 MPH EARLY IN THE AFTERNOON. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. CHANCE OF PCPN......10 PERCENT. TIME (EDT) 10 AM NOON 2 PM 4 PM SKY (%).........87 99 97 100 WEATHER COV..... CHANCE WEATHER TYPE....NONE NONE NONE RNSHWR TEMP............39 46 50 48 RH..............37 31 29 32 20 FT WIND......SE 6 SE 7 SE 7 SE 8 20 FT WIND GUST.15 15 15 15 TRANSPORT WIND..S 26 S 24 S 22 S 22 CHC OF PCPN (%).0 10 10 40 LAL.............1 1 1 1 HAINES INDEX....4 3 2 2 .TONIGHT... SKY/WEATHER.........CLOUDY. A CHANCE OF RAIN SHOWERS EARLY IN THE EVENING...THEN RAIN SHOWERS LIKELY EARLY IN THE EVENING. MIN TEMPERATURE.....AROUND 34. MAX HUMIDITY........86 PERCENT. WIND (20 FT)........SOUTHEAST WINDS 5 TO 9 MPH. LAL.................NO TSTMS. MIXING WINDS........SOUTH 21 TO 30 MPH...DECREASING TO 16 TO 20 MPH LATE. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. CHANCE OF PCPN......60 PERCENT. TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........100 100 100 100 100 100 WEATHER COV.....CHANCE LIKELY LIKELY LIKELY LIKELY LIKELY WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR TEMP............45 43 41 39 38 36 RH..............38 45 52 60 70 77 20 FT WIND......SE 7 SE 6 SE 5 SE 5 SE 5 SE 4 20 FT WIND GUST.15 15 10 10 10 10 TRANSPORT WIND..S 25 S 30 S 30 S 26 S 21 S 17 CHC OF PCPN (%).40 60 60 60 60 60 LAL.............1 1 1 1 1 1 HAINES INDEX....2 2 2 2 2 2 .THURSDAY... SKY/WEATHER.........CLOUDY WITH RAIN LIKELY...ESPECIALLY IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 48. MIN HUMIDITY........63 PERCENT. WIND (20 FT)........LIGHT AND VARIABLE WINDS...BECOMING SOUTH AROUND 5 MPH LATE...THEN BECOMING WEST LATE. LAL.................NO TSTMS. MIXING WINDS........SOUTHEAST 6 TO 15 MPH...DECREASING TO 3 TO 5 MPH LATE. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. CHANCE OF PCPN......60 PERCENT. TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).........100 99 100 100 100 100 WEATHER COV.....LIKELY CHANCE CHANCE CHANCE LIKELY LIKELY WEATHER TYPE....RNSHWR RAIN RAIN RAIN RAIN RAIN TEMP............34 37 40 43 48 47 RH..............86 79 75 72 63 68 20 FT WIND......SE 3 SE 3 SE 3 SE 3 SE 3 SW 4 20 FT WIND GUST.5 5 5 5 5 10 TRANSPORT WIND..S 15 S 14 S 10 S 8 SE 7 SE 5 CHC OF PCPN (%).60 50 50 50 70 70 LAL.............1 1 1 1 1 1 HAINES INDEX....2 2 2 2 2 2 $$ FORECASTER...WFO CTP/LACORTE REQUESTED BY...JOE KELLERT TYPE OF REQUEST...WILDFIRE .TAG 20090325.TUNNE.03/CTP