FNUS72 KGSP 211151 FWSGSP SPOT FORECAST FOR COMPARTMENT 71...USFS NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 751 AM EDT THU MAY 21 2009 FORECAST IS BASED ON IGNITION TIME OF 0900 EDT ON MAY 21. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... HIGH PRESSURE OFF THE MID-ATLANTIC COAST WILL CONTINUE TO RIDGE ACROSS THE CAROLINAS AT THE SURFACE TODAY AS LOW PRESSURE MOVES SLOWLY WEST ACROSS THE GULF OF MEXICO. THIS WILL MAINTAIN AN EASTERLY WIND ACROSS UPSTATE SOUTH CAROLINA TODAY AND TONIGHT. A WEAK NIGHTTIME INVERSION WILL SET UP AFTER SUNSET THIS EVENING BUT THE BOUNDARY LAYER WILL REMAIN STIRRED UP BY NORTHEAST TO EAST SURFACE WINDS OVERNIGHT. THE LOW PRESSURE WILL EVENTUALLY MOVE TOWARD THE GULF COAST OVER THE WEEKEND BUT THIS SYSTEM WILL REMAIN WELL TO OUR SOUTHWEST. .TODAY... SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). MAX TEMPERATURE.....AROUND 80. MIN HUMIDITY........46 PERCENT. WIND (20 FT)........EAST WINDS 8 TO 14 MPH. MIXING HEIGHT.......400-1800 FT AGL...INCREASING TO 4900-5300 FT AGL. TRANSPORT WINDS.....EAST 14 TO 20 MPH. TIME (EDT) 9 AM 11 AM 1 PM 3 PM 5 PM SKY (%).............91 84 76 73 71 WEATHER COV.........S CHC S CHC S CHC WEATHER TYPE........RNSHWR RNSHWR RNSHWR NONE NONE TEMP................66 73 77 79 79 RH..................82 62 53 48 46 20 FT WIND..........NE 6 NE 7 E 9 E 10 E 9 20 FT WIND GUST.....15 15 20 20 20 MIX HGT (FT)........1800 3500 3900 4400 4800 TRANSPORT WIND......NE 17 E 20 E 20 E 20 E 18 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT). MIN TEMPERATURE.....AROUND 61. MAX HUMIDITY........87 PERCENT. WIND (20 FT)........NORTHEAST WINDS 6 TO 12 MPH. MIXING HEIGHT.......2100-3700 FT AGL...DECREASING TO 300-500 FT AGL EARLY IN THE EVENING. TRANSPORT WINDS.....EAST 10 TO 18 MPH. TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).............68 57 59 61 62 62 WEATHER COV......... WEATHER TYPE........NONE NONE NONE NONE NONE NONE TEMP................78 73 69 66 64 62 RH..................47 56 66 73 80 83 20 FT WIND..........E 8 E 6 E 5 E 5 E 4 NE 4 20 FT WIND GUST.....20 15 10 10 10 10 MIX HGT (FT)........3700 500 300 300 300 400 TRANSPORT WIND......E 18 E 16 E 15 E 13 E 12 E 10 $$ FORECASTER...MOORE REQUESTED BY...TODD BENNETT TYPE OF REQUEST...PRESCRIBED .TAG 20090521.COMPA.01/GSP