FNUS72 KCAE 081116 FWSCAE SPOT FORECAST FOR COMP 28 RCW...US FOREST SERVICE NATIONAL WEATHER SERVICE COLUMBIA SC 716 AM EDT THU JUL 8 2010 FORECAST IS BASED ON IGNITION TIME OF 0900 EDT ON JULY 08. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... DOPPLER RADAR SHOWED NORTHWEST WINDS FROM THE SURFACE TO NEAR 4000 FEET AT 700 AM. MOST OF THE COMPUTER GUIDANCE KEEPS NORTHWEST WINDS DURING THE MORNING. BASED ON THE DEPTH OF THE WINDS ON RADAR AND THE GUIDANCE CONSISTENCY...EXPECT NORTHWEST WINDS THROUGH THE MORNING. HOWEVER... THE PRESSURE GRADIENT WILL BE WEAK SO EXPECT SOME VARIABILITY. THE MODELS ARE NOT CONSISTENT WITH WINDS AFTER 100 PM. WINDS ALOFT APPEAR TO REMAIN FROM A NORTHERLY DIRECTION...BUT A DEVELOPING SURFACE TROUGH ASSOCIATED WITH THE STRONG HEATING MAY RESULT IN A LIGHT SOUTH OR SOUTHWEST WIND. CONFIDENCE WAS LOW SO WE FORECASTED VARIABLE WINDS BEGINNING AT 100 PM. TEMPERATURES WILL BE SIMILAR TO YESTERDAY. IT WILL AGAIN BE VERY HOT. THE HEAT INDEX WILL BE ONLY A FEW DEGREES ABOVE THE ACTUAL TEMPERATURE BECAUSE OF THE DRY AIR MASS. THE NOON TEMPERATURE WILL LIKELY BE AROUND 96 WITH A HEAT INDEX VALUE OF 99. LATER IN THE AFTERNOON THE HIGH SHOULD BE AROUND 100 WITH A HEAT INDEX OF 101. .TODAY... TIME (EDT) 9 AM 11 AM 1 PM 3 PM 5 PM SKY (%)..............0 5 28 30 35 WEATHER COV.......... WEATHER TYPE.........NONE NONE NONE NONE NONE TEMP.................81 92 99 100 100 MIN HUMIDITY.........65 46 33 29 28 WIND (20 FT).........NW 5 NW 5 VR 4 VR 4 VR 4 20 FT WIND GUST......5 5 8 8 8 MIX HGT (FT).........1500 4400 6100 6600 6600 TRANSPORT WINDS......NW 5 NW 5 N 5 NW 4 NW 4 .TONIGHT... TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%)..............35 10 10 10 20 20 WEATHER COV.......... WEATHER TYPE.........NONE NONE NONE NONE NONE NONE TEMP.................99 92 84 80 77 74 MIN HUMIDITY.........31 41 55 67 76 84 WIND (20 FT).........VR 4 VR 3 VR 3 VR 3 VR 3 VR 3 20 FT WIND GUST......10 5 5 5 MIX HGT (FT).........6600 1000 300 300 300 300 TRANSPORT WINDS......N 5 N 3 N 2 N 2 NW 2 NW 3 .FRIDAY... TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%)..............44 41 45 51 55 55 WEATHER COV.......... S CHC S CHC S CHC WEATHER TYPE.........NONE NONE NONE TSTORM TSTORM TSTORM TEMP.................73 76 87 95 99 100 MIN HUMIDITY.........87 82 57 43 36 33 WIND (20 FT).........VR 3 SW 3 W 3 W 4 W 5 SW 6 20 FT WIND GUST...... 5 5 5 10 10 MIX HGT (FT).........300 800 1900 4900 6000 6000 TRANSPORT WINDS......NW 5 W 6 W 6 W 7 W 7 W 7 $$ FORECASTER...LINTON REQUESTED BY...SAVANNAH RIVER TYPE OF REQUEST...PRESCRIBED .TAG 20100708.COMP2.01/CAE