000 FNUS55 KCYS 141142 FWFCYS FIRE WEATHER FORECAST FOR SOUTHEAST WYOMING AND NEBRASKA PANHANDLE NATIONAL WEATHER SERVICE CHEYENNE WY 600 AM MDT MON OCT 14 2002 ...DRY...BREEZY AND SLIGHTLY COOLER CONDITIONS WILL PREVAIL TODAY... .DISCUSSION... NEAR RED FLAG CONDITIONS WILL OCCUR TODAY ACROSS THE WYOMING PORTION OF THE DISTRICT DUE TO LOW RELATIVE HUMIDITIES AND GUSTY WINDS. NORTHWEST FLOW ALOFT WILL PERSIST OVER THE CENTRAL ROCKIES FOR MUCH OF THE WEEK. AN UPPER LEVEL RIDGE WILL BE OVER THE PACIFIC NORTHWEST AND AN UPPER LOW IN THE HUDSON BAY AREA DURING THAT TIME. WITHIN THE FLOW ALOFT WILL BE SEVERAL WEATHER DISTURBANCES...WITH MOST OF THEIR ENERGY TO THE NORTH AND EAST OF THE DISTRICT. THE INITIAL WEATHER DISTURBANCE WAS LOCATED FROM WESTERN NORTH DAKOTA TO THE NORTHERN WYOMING BORDER EARLY THIS MORNING. THE FEATURE MOVES RAPIDLY OVER THE NORTHERN PLAINS THIS MORNING WITH THE TAIL END MOVING THROUGH EASTERN WYOMING AND WESTERN NEBRASKA. A COLD FRONT WAS JUST ENTERING EAST CENTRAL WYOMING EARLY THIS MORNING AND WILL MOVE THROUGH THE ENTIRE FORECAST AREA EAST OF THE LARAMIE RANGE BY 800 AM. AHEAD OF THE FRONT...WESTERLY WINDS HAVE BEEN GUSTING TO 40 MPH OVER THE WIND CORRIDOR AND MOUNTAINS. IN ADDITION...LOW LEVEL MOISTURE HAS BEEN QUITE LOW WITH DEW POINTS IN THE SINGLE DIGITS. BEHIND THE FRONT THE DEW POINTS HAVE BEEN IN THE 20S...WHICH WILL KEEP PRECIPITATION CHANCES NEAR ZERO. THERE WILL ALSO BE AT LEAST BRISK NORTHWEST WINDS. THE TEMPERATURES FOR TODAY WILL BE SLIGHTLY COOLER WITH SOME COLD AIR ADVECTION OVER THE DISTRICT. THE HAINES INDICES THIS MORNING WERE: 4 AT RAWLINS 6 AT CHEYENNE 4 AT SCOTTSBLUFF ----------------------------------------------------------------- FIRE WEATHER ZONE 290...291 SOUTHEAST AND EAST CENTRAL INCLUDING...CONVERSE...NIOBRARA...PLATTE...GOSHEN...AND LARAMIE COUNTIES .TODAY... SKY/WEATHER...SUNNY. MAX TEMP...57 TO 59. MIN HUMIDITY...10 TO 15 PERCENT. WIND 20 FOOT...NORTHWEST 20 TO 35 MPH...DECREASING TO 10 TO 20 MPH IN THE AFTERNOON. LAL...1. CHANCE OF WETTING RAIN (>.10)...0 PERCENT. MIXING HEIGHT (AGL)...6000 FEET. TRANSPORT WIND...NORTHWEST AT 15 TO 20 MPH. SMOKE DISPERSAL...VERY GOOD. .TONIGHT... SKY/WEATHER...CLEAR. MIN TEMP...23 TO 27. MAX HUMIDITY...75 TO 80 PERCENT. WIND 20 FOOT...NORTHWEST 10 TO 15 MPH. LAL...1. CHANCE OF WETTING RAIN (>.10)...0 PERCENT. MIXING HEIGHT (AGL)...1000 FEET. TRANSPORT WIND...WEST TO SOUTHWEST AT 10 TO 15 MPH. SMOKE DISPERSAL...BECOMING POOR. .TUESDAY... SKY/WEATHER...PARTLY CLOUDY. MAX TEMP...53 TO 58. MIN HUMIDITY...30 TO 35 PERCENT WIND 20 FOOT...NORTHWEST 10 TO 15 MPH. LAL...1. CHANCE OF WETTING RAIN (>.10)...0 PERCENT. MIXING HEIGHT (AGL)...6000 FEET. TRANSPORT WIND...WEST AT 10 TO 15 MPH. SMOKE DISPERSAL...GOOD. ***************************************************************** FIRE WEATHER ZONE 292 AND 293 SOUTH CENTRAL INCLUDING...ALBANY...SOUTH AND NORTHWEST CARBON COUNTIES. .TODAY... SKY/WEATHER...SUNNY. MAX TEMP...57 TO 59. MIN HUMIDITY...10 TO 15 PERCENT. WIND 20 FOOT...WEST 20 TO 35 MPH DECREASING TO 15 TO 25 MPH THIS AFTERNOON. LAL...1. CHANCE OF WETTING RAIN (>.10)...0 PERCENT. MIXING HEIGHT (AGL)...5000 FEET. TRANSPORT WIND...NORTHWEST AT 15 TO 20 MPH. SMOKE DISPERSAL...VERY GOOD. .TONIGHT... SKY/WEATHER...CLEAR. MIN TEMP...21 TO 23. MAX HUMIDITY...70 TO 75 PERCENT WIND 20 FOOT...WEST TO SOUTHWEST 10 TO 20 MPH. LAL...1. CHANCE OF WETTING RAIN (>.10)...0 PERCENT. MIXING HEIGHT (AGL)...1000 FEET. TRANSPORT WIND...WEST TO SOUTHWEST AT 10 TO 15 MPH. SMOKE DISPERSAL...POOR. .TUESDAY... SKY/WEATHER...MOSTLY SUNNY. MAX TEMP...51 TO 53. MIN HUMIDITY...20 TO 25 PERCENT. WIND 20 FOOT...WEST 10 TO 20 MPH. LAL...1. CHANCE OF WETTING RAIN (>.10)...0 PERCENT. MIXING HEIGHT (AGL)...5000 FEET TRANSPORT WIND...WEST AT 10 TO 15 MPH. SMOKE DISPERSAL...GOOD. ***************************************************************** FIRE WEATHER ZONES 294...295...296...SOUTHEAST MOUNTAINS INCLUDING...MEDICINE BOW MOUNTAINS...SIERRA MADRE...LARAMIE RANGE AND SNOWY RANGE .TODAY... SKY/WEATHER...SUNNY. MAX TEMP...48 TO 52. MIN HUMIDITY...10 TO 15 PERCENT. WIND 20 FOOT...WEST 25 TO 35 MPH WITH GUSTS TO 45 MPH...DECREASING TO 15 TO 25 MPH THIS AFTERNOON. LAL...1. CHANCE OF WETTING RAIN (>.10)...0 PERCENT. MIXING HEIGHT (AGL)...3000 FEET TRANSPORT WIND...NORTHWEST AT 20 TO 25 MPH. SMOKE DISPERSAL...GOOD. .TONIGHT... SKY/WEATHER...CLEAR. MIN TEMP...17 TO 22. MAX HUMIDITY...45 TO 50 PERCENT. WIND 20 FOOT...WEST 10 TO 20 MPH. LAL...1 CHANCE OF WETTING RAIN (>.10)...0 PERCENT. MIXING HEIGHT (AGL)...1000 FEET. TRANSPORT WIND...WEST TO SOUTHWEST AT 10 TO 15 MPH. SMOKE DISPERSAL...BECOMING POOR. .TUESDAY... SKY/WEATHER...MOSTLY SUNNY. MAX TEMP...47 TO 52. MIN HUMIDITY...25 TO 30 PERCENT. WIND 20 FOOT...NORTHWEST 10 TO 20 MPH. LAL...1. CHANCE OF WETTING RAIN (>.10)...0 PERCENT. MIXING HEIGHT (AGL)...3000 FEET. TRANSPORT WIND...WEST AT 15 TO 20 MPH. SMOKE DISPERSAL...GOOD. ***************************************************************** FIRE WEATHER ZONE 240...INCLUDING NEBRASKA NATIONAL FOREST AND THE SCOTTS BLUFF NATIONAL MONUMENT .TODAY... SKY/WEATHER...SUNNY. MAX TEMP...58 TO 63. MIN HUMIDITY...20 TO 25 PERCENT. WIND 20 FOOT...NORTHWEST 10 TO 15 MPH. LAL...1. CHANCE OF WETTING RAIN (>.10)...0 PERCENT. MIXING HEIGHT (AGL)...8000 FEET. TRANSPORT WIND...NORTHWEST AT 15 TO 20 MPH. SMOKE DISPERSAL...EXCELLENT. .TONIGHT... SKY/WEATHER...CLEAR. MIN TEMP...21 TO 26. MAX HUMIDITY...90 TO 95 PERCENT. WIND 20 FOOT...NORTHWEST 10 TO 15 MPH. LAL...1. CHANCE OF WETTING RAIN (>.10)...0 PERCENT. MIXING HEIGHT (AGL)...1000 FEET. TRANSPORT WIND...WEST TO SOUTHWEST AT 10 TO 15 MPH. SMOKE DISPERSAL...BECOMING POOR. .TUESDAY... SKY/WEATHER...PARTLY CLOUDY. MAX TEMP...52 TO 58. MIN HUMIDITY...30 TO 35 PERCENT. WIND 20 FOOT...NORTHWEST AROUND 10 MPH. LAL...1 CHANCE OF WETTING RAIN (>.10)...0 PERCENT. MIXING HEIGHT (AGL)...8000 FEET. TRANSPORT WIND...WEST AT 10 TO 15 MPH. SMOKE DISPERSAL...VERY GOOD. ***************************************************************** .EXTENDED FORECAST... .WEDNESDAY...PARTLY CLOUDY WITH A SLIGHT CHANCE OF SNOW SHOWERS. LOWS IN THE 20S TO LOWER 30S...TEENS AND 20S MOUNTAINS. HIGHS IN 50S...MAINLY 40S MOUNTAINS. .THURSDAY...CLOUDY AND COOLER WITH A CHANCE OF LIGHT SNOW OR FLURRIES. WINDY AREAS. LOWS IN THE 20S TO LOWER 30S...15 TO 25 MOUNTAINS. HIGHS IN THE 40S TO MID 50S...35 TO 45 MOUNTAINS. .FRIDAY...DRY AND WARMER. LOWS IN THE 20S TO MID 30S...TEENS AND 20S MOUNTAINS. HIGHS IN THE 50S TO LOWER 60S...MID 40S TO MID 50S MOUNTAINS. $$