FNUS73 KLBF 231730 FWSLBF SPOT FORECAST FOR VALLE...USFS NATIONAL WEATHER SERVICE NORTH PLATTE NE 1130 AM CST WED FEB 23 2011 FORECAST IS BASED ON IGNITION TIME OF 1500 MST ON FEBRUARY 23. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... NORTHWESTERLY WINDS WILL STRENGTHEN EARLY THIS AFTERNOON WITH GUSTS EXCEEDING 20 MPH AFTER THE NOON HOUR...AS A FRONTAL BOUNDARY CONTINUES SOUTH OF THE PRESCRIBED FIRE. TEMPERATURES AND THUS RELATIVE HUMIDITY VALUES WILL BE MODERATED BY COOLER AIR BEHIND THE FRONT. MINIMUM RELATIVE HUMIDITY VALUES ARE EXPECTED TO REMAIN ABOVE 30 PERCENT THIS AFTERNOON...WITH TEMPERATURES NEARING 50 DEGREES OVER THE PRESCRIBED BURN AREA.. .REST OF TODAY... SKY/WEATHER.........MOSTLY SUNNY. MAX TEMPERATURE.....AROUND 50. MIN HUMIDITY........31 PERCENT. EYE LEVEL WINDS.....NORTH WINDS 11 TO 17 MPH. WIND (20 FT)........NORTH WINDS 11 TO 17 MPH WITH GUSTS TO AROUND 30 MPH. LAL.................1. HAINES INDEX........4 OR LOW. MIXING HEIGHT.......3100-4900 FT AGL UNTIL 1400...THEN 3500-5100 FT AGL. TRANSPORT WINDS.....NORTHWEST 28 TO 33 MPH BECOMING NORTH 15 TO 22 MPH LATE IN THE AFTERNOON. SMOKE DISPERSAL.....GOOD INCREASING TO GOOD TO VERY GOOD EARLY IN THE AFTERNOON...THEN DECREASING TO FAIR TO GOOD LATE IN THE AFTERNOON. TIME (MST) 3 PM SKY (%).........38 WEATHER COV..... WEATHER TYPE....NONE TEMP............47 RH..............31 20 FT WIND......N 11 20 FT WIND GUST.25 EYE LEVEL WIND..N 11 EYE LEVEL WIND..25 HAINES INDEX....5 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. MIN TEMPERATURE.....AROUND 21. MAX HUMIDITY........74 PERCENT. EYE LEVEL WINDS.....NORTHEAST WINDS 6 TO 8 MPH. WIND (20 FT)........NORTHEAST WINDS 6 TO 8 MPH. LAL.................1. HAINES INDEX........5 MODERATE. MIXING HEIGHT.......800-2500 FT AGL UNTIL 2100...THEN 200-900 FT AGL. TRANSPORT WINDS.....NORTHEAST 8 TO 13 MPH. SMOKE DISPERSAL.....POOR TO POOR. TIME (MST) 5 PM 7 PM 9 PM 11 PM 1 AM 3 AM SKY (%).........41 52 67 78 82 88 WEATHER COV..... S CHC S CHC S CHC WEATHER TYPE....NONE NONE NONE SNOW SNOW SNOW TEMP............43 34 30 27 25 24 RH..............35 49 60 68 71 71 20 FT WIND......N 6 N 5 N 5 NE 5 NE 5 NE 5 20 FT WIND GUST.15 10 10 10 10 EYE LEVEL WIND..N 6 N 5 N 5 NE 5 NE 5 NE 5 EYE LEVEL WIND..15 10 10 10 10 HAINES INDEX....5 5 5 5 5 5 .THURSDAY... SKY/WEATHER.........CLOUDY. SNOW LIKELY IN THE MORNING...THEN CHANCE OF SNOW IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 31. MIN HUMIDITY........55 PERCENT. EYE LEVEL WINDS.....SOUTHEAST WINDS 7 TO 11 MPH. WIND (20 FT)........SOUTHEAST WINDS 7 TO 11 MPH. LAL.................1. HAINES INDEX........2 VERY LOW. MIXING HEIGHT.......1000-2300 FT AGL. TRANSPORT WINDS.....EAST 10 TO 14 MPH. SMOKE DISPERSAL.....POOR TO POOR. TIME (MST) 5 AM 7 AM 9 AM 11 AM 1 PM 3 PM SKY (%).........93 92 91 90 89 88 WEATHER COV.....LIKELY LIKELY LIKELY CHANCE CHANCE CHANCE WEATHER TYPE....SNOW SNOW SNOW SNOW SNOW SNOW TEMP............22 22 25 28 30 30 RH..............74 74 65 58 55 55 20 FT WIND......NE 6 E 6 E 7 E 9 SE 9 SE 9 20 FT WIND GUST.10 15 15 20 20 20 EYE LEVEL WIND..NE 6 E 6 E 7 E 9 SE 9 SE 9 EYE LEVEL WIND..10 15 15 20 20 20 HAINES INDEX....2 2 2 2 2 2 $$ FORECASTER...JACOBS REQUESTED BY...MATT GINDER TYPE OF REQUEST...PRESCRIBED .TAG 20110223.VALLE.01/LBF