FNUS73 KSGF 241428 FWSSGF SPOT FORECAST FOR GWCA...NPS NATIONAL WEATHER SERVICE SPRINGFIELD MO 928 AM CDT WED AUG 24 2011 FORECAST IS BASED ON IGNITION TIME OF 1100 CDT ON AUGUST 24. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING... .DISCUSSION... GUSTY SOUTH WINDS CAN BE EXPECTED TODAY AS TEMPERATURES WARM TO NEAR 100 DEGREES AHEAD OF A COLD FRONT. THAT FRONT WILL APPROACH THE FIRE SITE VERY LATE THIS AFTERNOON THROUGH THE EVENING HOURS. SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE ALONG AND AHEAD OF THIS FRONT. AS THE FRONT PASSES...WINDS WILL RAPIDLY TURN TO NORTH BEHIND THE FRONT. HIGH PRESSURE WILL BUILD INTO THE AREA THURSDAY THROUGH THE WEEKEND... WITH LIGHT NORTH WINDS TURNING EAST BY FRIDAY. .TODAY... SKY/WEATHER.........MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....92 AT IGNITION...MAX 101. MIN HUMIDITY........48 PERCENT AT IGNITION...MIN 35 PERCENT. 20-FOOT WINDS.......WINDS SOUTHWEST AT 15 MPH AT IGNITION...OTHERWISE SOUTHWEST WINDS 8 TO 16 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON. WIND SHIFT..........WINDS POSSIBLY BEGINNING TO VEER TO THE WEST VERY LATE THIS AFTERNOON. CHANCE OF PRECIP....10 PERCENT. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH AT IGNITION...MAX 6. MIXING HEIGHT.......1500 FT AGL AT IGNITION...MAXIMUM 2000 FT AGL INCREASING TO 6200 FT AGL. TRANSPORT WINDS.....SOUTHWEST 29 TO 36 MPH BECOMING WEST 14 TO 16 MPH. TIME (CDT) 11 AM 1 PM 3 PM 5 PM SKY (%).........PCLDY PCLDY PCLDY PCLDY WEATHER COV..... S CHC S CHC S CHC WEATHER TYPE....NONE TSTORM TSTORM TSTORM TEMP............92 97 100 100 RH..............48 40 35 35 20 FT WIND......SW 12 SW 10 SW 9 SW 6 20 FT WIND GUST.25 20 15 15 MIX HGT (FT)....1500 2600 4100 6200 TRANSPORT WIND..SW 24 W 20 W 16 W 14 CHC OF PCPN (%).10 20 20 20 HAINES INDEX....6 5 4 4 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING. MIN TEMPERATURE.....MIN 70. MAX HUMIDITY........MAX 80 PERCENT. 20-FOOT WINDS.......SOUTHWEST WINDS AROUND 6 MPH EARLY IN THE EVENING BECOMING LIGHT...THEN BECOMING NORTHEAST 5 TO 7 MPH EARLY IN THE MORNING. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE EVENING. WIND SHIFT..........WINDS WILL RAPIDLY TURN TO THE NORTH THIS EVENING AS A COLD FRONT PASSES. BEST TIMING FOR FRONTAL PASSAGE WILL BE BETWEEN 7 AND 10 PM. CHANCE OF PRECIP....20 PERCENT. HAINES INDEX........3 TO 5 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH TO 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 (%).........PCLDY PCLDY PCLDY PCLDY PCLDY MCLEAR WEATHER COV.....S CHC S CHC S CHC S CHC WEATHER TYPE....TSTORM TSTORM TSTORM TSTORM NONE NONE TEMP............98 93 87 83 77 75 RH..............37 46 58 64 75 80 20 FT WIND......SW 5 SW 2 S 2 SW 2 W 2 NE 5 20 FT WIND GUST.10 10 10 5 5 10 MIX HGT (FT)....7200 5800 1400 300 300 500 TRANSPORT WIND..NW 14 NW 15 N 21 NE 24 NE 24 NE 20 CHC OF PCPN (%).20 20 20 20 10 10 HAINES INDEX....5 5 4 3 3 4 .THURSDAY... SKY/WEATHER.........SUNNY. MAX TEMPERATURE.....MAX 92. MIN HUMIDITY........MIN 31 PERCENT. 20-FOOT WINDS.......NORTHEAST WINDS 8 TO 10 MPH. WIND SHIFT..........NONE EXPECTED. CHANCE OF PRECIP....0 PERCENT. HAINES INDEX........MISSING. MIXING HEIGHT.......MISSING. TRANSPORT WINDS.....NORTHEAST 12 TO 15 MPH. 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............73 75 82 87 90 92 RH..............79 71 52 40 33 31 20 FT WIND......NE 6 NE 6 NE 7 NE 7 NE 6 NE 7 20 FT WIND GUST.10 15 15 15 15 15 MIX HGT (FT)....M M M M M M TRANSPORT WIND..NE 14 NE 12 NE 12 NE 13 NE 14 NE 15 CHC OF PCPN (%).10 0 0 0 0 0 HAINES INDEX....M M M M M M .FRIDAY... SKY/WEATHER.........MOSTLY CLEAR. MIN TEMPERATURE.....MIN 63. MAX HUMIDITY........MAX 52 PERCENT. 20-FOOT WINDS.......EAST WINDS 5 TO 8 MPH. WIND SHIFT..........WINDS BECOMING SOUTHEAST DURING THE DAY. CHANCE OF PRECIP....0 PERCENT. HAINES INDEX........MISSING. MIXING HEIGHT.......MISSING. TRANSPORT WINDS.....EAST 5 TO 15 MPH. TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).........MCLEAR MCLEAR MCLEAR MCLEAR MCLEAR MCLEAR MCLEAR MCLEAR MCLEAR MCLEAR MCLEAR MCLEAR WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE TEMP............88 80 74 71 69 67 66 70 80 87 91 93 RH..............35 47 57 61 66 72 71 65 50 39 33 32 20 FT WIND......NE 6 NE 5 E 5 E 5 E 4 E 3 E 4 E 4 SE 5 SE 5 E 4 E 3 20 FT WIND GUST.10 10 10 10 5 5 5 10 10 10 5 5 MIX HGT (FT)....M M M M M M M M M M M M TRANSPORT WIND..NE 15 NE 15 NE 13 E 12 E 10 E 9 E 8 E 7 E 6 E 5 E 5 E 5 CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0 HAINES INDEX....M M M M M M M M M M M M $$ FORECASTER...BOXELL REQUESTED BY...DWIGHT NEWMAN TYPE OF REQUEST...PRESCRIBED .TAG 20110824.GWCA_.01/SGF