FNUS74 KMOB 181234 FWSMOB SPOT FORECAST FOR 203D_S1...EGLIN AFB NATIONAL WEATHER SERVICE MOBILE AL 734 AM CDT SAT APR 18 2009 FORECAST IS BASED ON IGNITION TIME OF 0755 CDT ON APRIL 18. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...HIGH PRESSURE OVER THE SOUTHEASTERN STATES GRADUALLY SHIFTS INTO THE ATLANTIC TODAY WHILE A LOW PRESSURE SYSTEM ADVANCES ACROSS THE SOUTHERN PLAINS. BREEZY SOUTHEASTERLY WINDS THIS AFTERNOON WILL OCCUR AGAIN TODAY AND CONTINUE TO USHER GULF MOISTURE INTO THE AREA. ISOLATED TO SCATTERED THUNDERSTORMS WILL DEVELOP ACROSS THE AREA THIS AFTERNOON AND EVENING AND BECOME NUMEROUS ON SUNDAY AS THE LOW PRESSURE SYSTEM MOVES ACROSS THE REGION. A COLD FRONT WILL MOVE THROUGH THE AREA SUNDAY NIGHT AND BRING AN END TO THE THUNDERSTORMS. AFTERNOON RELATIVE HUMIDITIES WILL REMAIN WELL ABOVE CRITICAL LEVELS THROUGH MONDAY. .TODAY... TIME (CDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM SKY (%).........57 75 75 57 57 57 WEATHER COV.....S CHC S CHC S CHC S CHC S CHC CHANCE WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR TEMP............57 63 69 73 73 71 RH..............84 71 59 55 58 63 20 FT WIND DIR..E SE SE SE SE SE 20 FT WIND SPD..7 11 14 14 14 11 MIX HGT (FT)....700 1900 3100 4300 4500 4000 MIX HGT (M).....210 580 940 1310 1370 1220 TRANSP WIND DIR.E SE SE SE SE SE TRANSP WIND SPD.12 17 21 21 21 17 TRANS SPD (M/S).5 8 9 9 9 8 DISPERSION......12 32 50 60 60 49 LVORI...........4 3 1 1 1 1 CWR.............20 20 20 20 20 30 .TONIGHT... TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........57 66 66 66 76 76 WEATHER COV.....CHANCE CHANCE CHANCE CHANCE CHANCE CHANCE WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR TEMP............70 67 64 63 63 64 RH..............67 76 83 87 88 87 20 FT WIND DIR..SE SE SE SE SE SE 20 FT WIND SPD..10 8 8 8 8 8 MIX HGT (FT)....3400 2100 800 800 800 800 MIX HGT (M).....1040 640 240 240 240 240 TRANSP WIND DIR.SE SE SE SE SE SE TRANSP WIND SPD.16 14 14 14 14 14 TRANS SPD (M/S).7 6 6 6 6 6 DISPERSION......41 19 12 12 12 12 LVORI...........1 3 4 4 4 4 CWR.............30 30 30 30 30 30 .SUNDAY... TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).........76 65 65 65 96 96 WEATHER COV.....CHANCE LIKELY LIKELY LIKELY LIKELY LIKELY WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR TEMP............63 65 70 72 73 72 RH..............90 88 79 73 73 77 20 FT WIND DIR..SE SE S S S S 20 FT WIND SPD..8 10 14 14 14 14 MIX HGT (FT)....800 1200 2100 3000 3500 3600 MIX HGT (M).....240 370 640 910 1070 1100 TRANSP WIND DIR.SE SE S S S S TRANSP WIND SPD.14 16 21 21 22 23 TRANS SPD (M/S).6 7 9 9 10 10 DISPERSION......12 23 40 51 57 59 LVORI...........5 4 3 3 3 3 CWR.............30 60 60 60 60 60 $$ FORECASTER...MOB FORECASTER REQUESTED BY...JERRY COON TYPE OF REQUEST...PRESCRIBED .TAG 20090418.203D_.01/MOB