FNUS74 KBMX 311154 FWSBMX SPOT FORECAST FOR RIDDLE...USFS NATIONAL WEATHER SERVICE BIRMINGHAM AL 654 AM CDT WED MAR 31 2010 FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON MARCH 31. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... WE WILL NEED TO KEEP A CLOSE EYE OUT FOR CONDITIONS THAT MAY NEAR RED FLAG CRITERIA AS THE HIGHS WILL BE MUCH WARMER TODAY AND DEWPOINTS WILL REMAIN AROUND 40 OR BELOW. HUMIDITY VALUES WILL LIKELY BE IN THE MIDDLE TO UPPER 20S THIS AFTERNOON DURING THE PEAK HEATING. THINKING RIGHT NOW THAT WE ARE CLOSE...BUT WITH THE SUBTLE SOUTHERLY RETURN FLOW GETTING ESTABLISHED THAT WE CAN MUSTER JUST ENOUGH SURFACE MOISTURE THAT THERE WILL NOT BE AT LEAST 4 HOURS OF RH VALUES BELOW 25 PERCENT. SURFACE MOISTURE IS FORECAST TO CONTINUE SLOWLY INCREASING AHEAD OF OUR NEXT SYSTEM ON SATURDAY NIGHT...SO RED FLAG CONDITIONS ARE NOT EXPECTED FOR THE REMAINDER OF THE WEEK AT THIS TIME. .TODAY... TIME (CDT) 9 AM 11 AM 1 PM 3 PM 5 PM SKY.............CLEAR CLEAR CLEAR CLEAR CLEAR WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE TEMP............52 64 73 75 75 RH..............55 39 31 30 29 20 FT WIND......S 3 S 6 SW 7 SW 7 S 6 MIX HGT (FT)....1800 3200 3700 4000 4000 TRANSPORT WIND..SW 9 SW 13 SW 12 SW 10 SW 10 DISPERSION......22 50 41 39 49 .TONIGHT... TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY.............CLEAR CLEAR CLEAR CLEAR CLEAR CLEAR WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............73 64 54 51 49 48 RH..............31 45 65 77 83 86 20 FT WIND......S 5 S 2 S 2 S 2 S 2 S 2 MIX HGT (FT)....3700 2500 800 400 300 300 TRANSPORT WIND..S 10 S 12 S 12 S 8 S 7 S 7 DISPERSION......47 5 5 4 3 3 .THURSDAY... TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY.............CLEAR CLEAR CLEAR CLEAR CLEAR CLEAR WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............48 51 64 75 79 80 RH..............86 80 54 41 38 38 20 FT WIND......S 2 S 3 S 6 S 7 S 7 S 7 MIX HGT (FT)....200 800 2200 3000 3500 3700 TRANSPORT WIND..S 6 S 8 SW 14 SW 12 S 9 S 8 DISPERSION......1 9 39 37 32 36 $$ FORECASTER...LAWS REQUESTED BY...CLARK TYPE OF REQUEST...PRESCRIBED .TAG 20100331.RIDDL.01/BMX