FNUS71 KCTP 211514 FWSCTP SPOT FORECAST FOR FR 308A...ALLEGHENY NATIONAL FOREST/USFS NATIONAL WEATHER SERVICE STATE COLLEGE PA 1114 AM EDT SAT APR 21 2012 FORECAST IS BASED ON REQUEST TIME OF 1111 EDT ON APRIL 21. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE IN STATE COLLEGE. .DISCUSSION... A COLD FRONT WILL TRACK SLOWLY EASTWARD ACROSS THE COMMONWEALTH TODAY...BRINGING SHOWERS AND SCATTERED THUNDERSTORMS. THE FRONT WILL SLOW AND BECOME STATIONARY OVER THE EASTERN END OF THE STATE TONIGHT. AN AREA OF LOW PRESSURE WILL ORGANIZE ALONG THE ATLANTIC COAST AND MOVE NORTHWARD ON SUNDAY. THIS STORM WILL DEEPEN SIGNIFICANTLY ALONG THE NEW JERSEY COAST SUNDAY NIGHT AND MONDAY...DRAGGING COLD AIR INTO WESTERN AND CENTRAL PENNSYLVANIA. THIS WILL BRING A MIX OF RAIN AND SNOW...WITH ACCUMULATING SNOW OVER HIGHER ELEVATIONS OF THE WEST CENTRAL MOUNTAINS...LAUREL HIGHLANDS AND CENTRAL MOUNTAINS LATE SUNDAY NIGHT INTO MONDAY NIGHT. UNSETTLED CONDITIONS WILL LAST INTO MID WEEK AS A DEEP UPPER TROUGH AND CUT OFF LOW LINGER OVER THE REGION. .TODAY... SKY/WEATHER.........CLOUDY. SHOWERS. MAX TEMPERATURE.....AROUND 51. MIN HUMIDITY........79 PERCENT. WIND (20 FT)........LIGHT AND VARIABLE WINDS...BECOMING NORTH 6 TO 9 MPH. LAL.................NO TSTMS. MIXING HEIGHT.......1100-1900 FT AGL. TRANSPORT WINDS.....NORTH 8 TO 13 MPH. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. CHANCE OF PCPN......100 PERCENT. TIME (EDT) 11A 12P 1PM 2PM 3PM 4PM 5PM SKY (%).............98 99 100 100 100 100 100 WEATHER COV.........DEF DEF DEF DEF DEF DEF DEF WEATHER TYPE........RW RW RW RW RW RW RW TSTM COV............ TEMP................47 46 45 43 42 41 41 RH..................79 81 82 83 85 87 89 20 FT WIND DIR......N N N N N N N 20 FT WIND SPD......6 6 7 7 7 7 7 20 FT WIND GUST.....10 10 10 10 10 MIX HGT (KFT).......1.4 1.6 1.8 1.9 1.8 1.8 1.7 TRANSP WIND DIR.....N N N N N N N TRANSP WIND SPD.....8 8 9 10 12 12 13 CHC OF PCPN (%).....90 90 90 80 80 80 80 LAL.................1 1 1 1 1 1 1 HAINES INDEX........2 2 2 2 2 2 2 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS EARLY IN THE EVENING...THEN A SLIGHT CHANCE OF RAIN SHOWERS EARLY IN THE EVENING. MIN TEMPERATURE.....AROUND 33. MAX HUMIDITY........88 PERCENT. WIND (20 FT)........NORTH WINDS 6 TO 9 MPH. LAL.................NO TSTMS. MIXING HEIGHT.......600-2300 FT AGL. TRANSPORT WINDS.....NORTH 13 TO 16 MPH. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. CHANCE OF PCPN......80 PERCENT. TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).............100 100 97 92 89 73 WEATHER COV.........DEFNTE S CHC S CHC S CHC WEATHER TYPE........RNSHWR RNSHWR RNSHWR RNSHWR NONE NONE TSTM COV............ TEMP................40 39 38 37 37 36 RH..................88 86 81 79 80 82 20 FT WIND..........N 8 N 9 N 7 N 6 N 6 N 6 20 FT WIND GUST.....10 15 15 10 MIX HGT (FT)........1700 1800 2100 2300 2100 1000 TRANSPORT WIND......N 13 N 13 N 15 N 16 N 16 N 14 CHC OF PCPN (%).....80 20 20 20 10 10 LAL.................1 1 1 1 1 1 HAINES INDEX........2 2 2 3 3 3 .SUNDAY... SKY/WEATHER.........PARTLY SUNNY. A SLIGHT CHANCE OF RAIN EARLY IN THE MORNING. A CHANCE OF RAIN EARLY IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 49. MIN HUMIDITY........49 PERCENT. WIND (20 FT)........NORTH WINDS 10 TO 15 MPH. LAL.................NO TSTMS. MIXING HEIGHT.......900-2700 FT AGL...INCREASING TO 3200-4200 FT AGL IN THE LATE MORNING AND AFTERNOON. TRANSPORT WINDS.....NORTHEAST 14 TO 22 MPH...INCREASING TO AROUND 24 MPH LATE. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. CHANCE OF PCPN......30 PERCENT. TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).............63 47 47 47 60 60 WEATHER COV......... S CHC S CHC S CHC CHANCE CHANCE WEATHER TYPE........NONE RAIN RAIN RAIN RAIN RAIN TSTM COV............ TEMP................35 36 37 41 45 47 RH..................82 81 73 62 52 49 20 FT WIND..........N 8 NE 12 NE 13 NE 14 NE 14 N 15 20 FT WIND GUST.....10 15 15 15 20 20 MIX HGT (FT)........900 2100 3200 4000 4200 4100 TRANSPORT WIND......N 14 NE 17 NE 18 NE 18 NE 17 NE 22 CHC OF PCPN (%).....10 20 20 20 30 30 LAL.................1 1 1 1 1 1 HAINES INDEX........3 4 4 4 4 4 $$ FORECASTER...WFO CTP REQUESTED BY...DIANA EMMONS TYPE OF REQUEST...WILDFIRE .TAG 20120421.FR308.01/CTP