FNUS73 KPAH 181154 FWSPAH SPOT FORECAST FOR POST OAK PRAIRIE PILES...USFWS NATIONAL WEATHER SERVICE PADUCAH KY 654 AM CDT WED APR 18 2012 FORECAST IS BASED ON IGNITION TIME OF 1100 CDT ON APRIL 18. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... SURFACE HIGH PRESSURE WILL PREVAIL OVER THE FOUR STATE REGION UNTIL THURSDAY...WHEN SOUTHERLY WINDS WILL FINALLY RETURN ACROSS THE AREA. TEMPERATURES TODAY WILL BE IN THE LOWER 70S BUT THEN WILL TREND UPWARD TOWARD 80 DEGREES FOR THURSDAY. THESE WARMER TEMPERATURES WILL SEND RELATIVE HUMIDITY VALUES DOWN INTO THE 30S. A COLD FRONT WILL MOVE SOUTHEAST THROUGH THE REGION FRIDAY NIGHT. AT LEAST SCATTERED SHOWERS AND THUNDERSTORMS CAN BE EXPECTED WITH THE FRONT. IN THE UPPER LEVELS OF THE ATMOSPHERE...A LOW PRESSURE CENTER WILL DEVELOP OVER THE LOWER MISSISSIPPI VALLEY FRIDAY INTO SATURDAY. THIS WILL RESULT IN A CONTINUED CHANCE OF SHOWERS THROUGH AT SATURDAY EVENING. TEMPERATURES WILL TURN MUCH COOLER WITH SOME AREAS STRUGGLING TO REACH 60 ON SATURDAY AND SUNDAY. WARMER WEATHER WILL RETURN FOR MONDAY AND ESPECIALLY ON TUESDAY. .TODAY... SKY/WEATHER.........SUNNY (0-10 PERCENT). TEMPERATURE.........64 AT IGNITION...MAX 74. RH..................56 PERCENT AT IGNITION...MIN 30 PERCENT. WIND (20 FT)........WINDS SOUTHEAST AT 5 MPH AT IGNITION...OTHERWISE SOUTHEAST WINDS 5-7 MPH. CWR.................0 PERCENT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH AT IGNITION...MAX 6. MIXING HEIGHT.......300-1800 FT AGL INCREASING TO 4900-6400 FT AGL. TRANSPORT WINDS.....EAST 3 TO 12 MPH SHIFTING TO THE SOUTH 1 TO 2 MPH LATE IN THE AFTERNOON. TIME (CDT) 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........CLR CLR CLR MCR MCR MCR MCR MCR WEATHER COV..... WEATHER TYPE.... TEMP............64 67 70 71 72 73 72 71 RH..............46 40 35 33 32 32 32 35 20 FT WIND DIR..SE SE SE SE SE S S S 20 FT WIND SPD..4 3 3 3 3 3 3 3 20 FT WIND GUST.5 5 5 5 5 5 5 5 MIX HGT (KFT)...3.8 4.9 5.7 6.2 6.4 6.2 5.8 5.0 TRANSP WIND DIR.E NE NE E E SE SE S TRANSP WIND SPD.8 7 7 6 3 2 1 1 CWR.............0 0 0 0 0 0 0 0 HAINES INDEX....5 5 5 5 5 5 5 6 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT). TEMPERATURE.........MIN 49. RH..................MAX 77 PERCENT. WIND (20 FT)........WINDS BECOMING SOUTH AROUND 5 MPH OR LESS. CWR.................0 PERCENT. HAINES INDEX........5 TO 6 OR OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH TO OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2700-4000 FT AGL DECREASING TO 0-1300 FT AGL EARLY IN THE EVENING. TRANSPORT WINDS.....SOUTHWEST 2 TO 10 MPH. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........MCLEAR MCLEAR MCLEAR MCLEAR MCLEAR MCLEAR WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............69 62 58 55 53 51 RH..............51 58 59 66 69 74 20 FT WIND......S 3 S 4 S 4 S 4 S 4 S 3 20 FT WIND GUST.5 5 5 5 5 5 MIX HGT (FT)....4000 1300 BLW100 300 300 100 TRANSPORT WIND..SW 2 S 6 S 9 SW 9 SW 10 SW 10 CWR.............0 0 0 0 0 0 HAINES INDEX....6 5 5 5 5 5 .THURSDAY... SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT). TEMPERATURE.........MAX 78. RH..................MIN 33 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 10 MPH. CWR.................0 PERCENT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......300-1600 FT AGL INCREASING TO 3500-4700 FT AGL. TRANSPORT WINDS.....SOUTH 9 TO 17 MPH. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........MCLEAR MCLEAR MCLEAR PCLDY WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............52 65 74 77 RH..............76 45 37 35 20 FT WIND......S 3G5 S 6G10 S 6G10 S 8G20 MIX HGT (FT)....300 2400 4300 4500 TRANSPORT WIND..S 9 S 13 S 14 S 15 CWR.............0 0 0 0 HAINES INDEX....5 5 5 5 $$ FORECASTER...WFO PADUCAH REQUESTED BY...ERIC PFEILSCHIFTER TYPE OF REQUEST...PRESCRIBED .TAG 20120418.POSTO.01/PAH