FNUS73 KSGF 281043 FWSSGF SPOT FORECAST FOR SHELL KNOB FOREST FIRE...SHELL KNOB FIRE NATIONAL WEATHER SERVICE SPRINGFIELD MO 543 AM CDT SUN AUG 28 2011 FORECAST IS BASED ON REQUEST TIME OF 2313 CDT ON AUGUST 27. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... A DRY AND UNSTABLE AIRMASS WILL BE IN PLACE EARLY TODAY WITH LARGE LAPSE RATES IN THE LOWEST 2KFT. THIS WILL ALLOW FOR SIGNIFICANT VENTILATION FOR FIRES ACROSS THE REGION. LOW LEVEL MOISTURE WILL SLOWLY INCREASE DURING THE AFTERNOON INTO THE EVENING. THIS WILL ACT TO FUEL ISOLATED THUNDERSTORMS DURING THE OVERNIGHT HOURS. .TODAY... SKY/WEATHER.........SUNNY. MAX TEMPERATURE.....MAX 94. MIN HUMIDITY........MIN 31 PERCENT. 20-FOOT WINDS.......LIGHT WINDS. WIND SHIFT..........NONE. CHANCE OF PRECIP....0 PERCENT. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2100 FT AGL INCREASING TO 3800 FT AGL EARLY IN THE AFTERNOON. TRANSPORT WINDS.....EAST 3 TO 12 MPH SHIFTING TO THE SOUTHEAST 1 TO 2 MPH IN THE AFTERNOON. TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).........MCLEAR MCLEAR MCLEAR MCLEAR MCLEAR MCLEAR WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............68 71 81 88 92 94 RH..............79 70 52 40 34 31 20 FT WIND......NE 2 E 2 E 3 E 2 E 2 E 2 20 FT WIND GUST.5 5 5 5 5 5 MIX HGT (FT)....200 500 900 1700 2700 3600 TRANSPORT WIND..E 12 E 9 E 6 E 3 E 1 SE 1 CHC OF PCPN (%).0 0 0 0 0 0 HAINES INDEX....6 6 6 6 6 6 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. MIN TEMPERATURE.....MIN 66. MAX HUMIDITY........MAX 74 PERCENT. 20-FOOT WINDS.......LIGHT WINDS BECOMING SOUTHEAST 5 TO 6 MPH IN THE LATE EVENING AND OVERNIGHT. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS. WIND SHIFT..........NONE. CHANCE OF PRECIP....20 PERCENT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......N/A. TRANSPORT WINDS.....N/A. TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........MCLEAR MCLEAR PCLDY PCLDY PCLDY MCLDY WEATHER COV..... S CHC S CHC S CHC S CHC S CHC WEATHER TYPE....NONE TSTORM TSTORM TSTORM TSTORM TSTORM TEMP............91 83 77 74 73 70 RH..............36 46 55 61 66 73 20 FT WIND......E 3 E 3 E 4 SE 5 SE 5 SE 4 20 FT WIND GUST.5 5 5 10 5 MIX HGT (FT)....3900 2500 300 100 400 500 TRANSPORT WIND..S 1 S 3 S 7 S 10 S 13 S 14 CHC OF PCPN (%).0 20 20 20 20 20 HAINES INDEX....5 5 5 5 5 5 $$ FORECASTER...HATCH REQUESTED BY...SUSAN TYPE OF REQUEST...WILDFIRE .TAG 20110827.SHELL.01/SGF