FNUS74 KBMX 172033 FWSBMX SPOT FORECAST FOR WESTEND...USFS NATIONAL WEATHER SERVICE BIRMINGHAM AL 333 PM CDT THU MAR 17 2011 FORECAST IS BASED ON IGNITION TIME OF 1545 CDT ON MARCH 17. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. ...RED FLAG WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING... .DISCUSSION... RELATIVE HUMIDITIES HAVE DROPPED BELOW 25 PERCENT IN THE NORTHEAST THIS AFTERNOON. LOOK FOR THESE RH VALUES TO REMAIN BELOW 25 FOR AT LEAST 4 HOURS THIS AFTERNOON. SURFACE DEWPOINTS HAVE FALLEN INTO THE LOW 30S AND WILL REMAIN THERE FOR THE REST OF THE AFTERNOON. FRIDAY WILL BE ANOTHER DRY DAY...HOWEVER RH VALUES SHOULD BE SLIGHTLY HIGHER AS DEWPOINTS WILL BE HIGHER. CURRENT FORECAST IS ON THE LOW END OF THE MODEL CONSENSUS... AND KEEP THE AREA ABOVE 25 PERCENT ALL AFTERNOON. SO EVEN IF THE AFTERNOON MIXING IS LOWER THAN FORECAST THE DURATION SHOULD NOT BE A CONCERN. AS FOR FOG POTENTIAL FOR FRIDAY MORNING...THERE WILL BE A CHANCE OF ISOLATED PATCHY FOG...MUCH LIKE THIS MORNING. DO NOT EXPECT WIDESPREAD PROBLEMS. THERE IS POTENTIAL FOR A LOW STRATUS DECK TO BUILD INTO THE FAR NORTHWEST BY MORNING. THIS WILL NOT IMPACT NE ALABAMA. .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............71 63 57 55 52 51 RH..............28 43 64 69 73 72 20 FT WIND......SW 5 SW 3 S 3 SW 5 SW 6 SW 6 CHC OF PCPN (%).0 0 0 0 0 0 MIX HGT (FT)....3600 1800 400 300 400 300 TRANSPORT WIND..S 13 S 10 S 5 S 6 S 7 S 7 DISPERSION......56 23 2 3 3 3 .FRIDAY... 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............49 58 63 69 75 78 RH..............75 64 54 45 38 34 20 FT WIND......W 5 W 5 W 5 W 6 W 6 W 7 CHC OF PCPN (%).0 0 0 0 0 0 MIX HGT (FT)....100 1000 2800 3800 4300 4300 TRANSPORT WIND..SW 3 SW 6 W 12 W 12 W 12 W 13 DISPERSION......2 3 5 53 59 65 $$ FORECASTER...AARON REQUESTED BY...JEREMY BRAND TYPE OF REQUEST...PRESCRIBED .TAG 20110317.WESTE.03/BMX