Colorado Fire Weather Zone 218

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FIRE WEATHER PLANNING FORECAST FOR NORTHEAST AND NORTH CENTRAL
COLORADO NATIONAL WEATHER SERVICE DENVER/BOULDER CO 319 PM MDT FRI AUG 29 2014 .DISCUSSION...TONIGHT AND SATURDAY...SCATTERED SHOWERS AND THUNDERSTORMS WILL DIMINISH THIS EVENING AS SKIES CLEAR OVERNIGHT. HIGH PRESSURE ALOFT WILL SHIFT INTO THE CENTRAL PLAINS ON SATURDAY WITH A BIT DRIER AND WARMER AIRMASS ACROSS NORTHERN COLORADO. THERE WILL STILL BE A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS OVER THE MOUNTAINS AND HIGHER TERRAIN ON SATURDAY AFTERNOONN. LONG TERM DISCUSSION...SATURDAY NIGHT THROUGH WEDNESDAY...A COLD FRONT AND UPPER LEVEL SYSTEM WILL BRING COOLER TEMPERATURES AND A CHANCE FOR SHOWERS AND THUNDERSTORMS SUNDAY. MONDAY WILL BE MILD WITH JUST A SLIGHT CHANCE FOR STORMS NORTH. HIGH PRESSURE WILL BRING DRY AND WARM CONDITIONS TUESDAY AND WEDNESDAY. ...THUNDERSTORMS IMPLY STRONG GUSTY ERRATIC WINDS... ...ALL SURFACE WINDS ARE 20-FOOT...10-MINUTE AVERAGED WINDS... ...CWR IS CHANCE OF WETTING RAIN - 0.10 INCH OR MORE LIQUID... ...24 HR TRENDS ARE BASED ON AVERAGES OVER THE RESPECTIVE ZONE GROUPS AND MAY NOT MATCH THE ACTUAL FORECAST VALUES SHOWN IN THOSE GROUPS... SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET-SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- INCLUDING BERTHOUD PASS...BRECKENRIDGE...EAST SLOPES MOSQUITO RANGE...EAST SLOPES SOUTHERN GORE RANGE...EISENHOWER TUNNEL... INDIAN PEAKS...KENOSHA MOUNTAINS...MOUNT EVANS...PUMA HILLS... TARRYALL MOUNTAINS...WILLIAMS FORK MOUNTAINS...WINTER PARK... CAMERON PASS...LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE...ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS 319 PM MDT FRI AUG 29 2014 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY(60-65%) UNTIL 1900...THEN PARTLY CLOUDY(40-50%). SLIGHT CHANCE OF THUNDERSTORMS UNTIL 2300. MIN TEMPERATURE.....37-45. 24 HR TREND......LITTLE CHANGE. MAX HUMIDITY........68-78%. 24 HR TREND......25-35% DRIER. 20-FOOT WINDS....... VALLEYS/LWR SLOPES...DOWNSLOPE/DOWNVALLEY 2-8 MPH. RIDGES/UPR SLOPES....DOWNSLOPE/DOWNVALLEY 2-8 MPH BECOMING SOUTHWEST 8-13 MPH WITH GUSTS TO 20 MPH AFTER MIDNIGHT. HAINES INDEX........3 VERY LOW. LAL.................3 UNTIL 2300...THEN 1. CWR.................0 PERCENT. 15K FT MSL WINDS....WEST 15-20 MPH. MIXING HEIGHT.......2500-3500 FT AGL. TRANSPORT WINDS.....SOUTHWEST 10-15 MPH. SMOKE DISPERSAL.....GOOD UNTIL 2100...THEN POOR. .SATURDAY... SKY/WEATHER.........PARTLY CLOUDY(35-45%). SLIGHT CHANCE OF THUNDERSTORMS AFTER 1100. MAX TEMPERATURE.....57-67. 24 HR TREND......4-7 DEGREES WARMER. MIN HUMIDITY........27-35%. 24 HR TREND......4-7% DRIER. 20-FOOT WINDS....... VALLEYS/LWR SLOPES...WEST 10-16 MPH. GUSTS UP TO 20 MPH INCREASING TO 30 MPH IN THE AFTERNOON. RIDGES/UPR SLOPES....WEST 12-22 MPH WITH GUSTS TO 30 MPH. HAINES INDEX........3 VERY LOW. LAL.................1 UNTIL 1100...THEN 3. CWR.................0 PERCENT UNTIL 1200...THEN 10 PERCENT. 15K FT MSL WINDS....WEST 20-30 MPH. MIXING HEIGHT.......10000-11000 FT AGL. TRANSPORT WINDS.....WEST 15-20 MPH UNTIL 1700...THEN AROUND 25 MPH. SMOKE DISPERSAL.....POOR UNTIL 0900. EXCELLENT AFTER 1200. .SATURDAY NIGHT... SKY/WEATHER.........PARTLY CLOUDY(55-60%). SLIGHT CHANCE OF THUNDERSTORMS. MIN TEMPERATURE.....38-46. 24 HR TREND......LITTLE CHANGE. MAX HUMIDITY........66-76%. 24 HR TREND......2-4% WETTER. 20-FOOT WINDS....... VALLEYS/LWR SLOPES...SOUTHWEST 9-15 MPH WITH GUSTS TO 25 MPH. RIDGES/UPR SLOPES....SOUTHWEST 13-20 MPH WITH GUSTS TO 30 MPH. HAINES INDEX........3 VERY LOW. LAL.................3 UNTIL 2400...THEN 1. CWR.................10 PERCENT UNTIL 2400...THEN 0 PERCENT. 15K FT MSL WINDS....WEST 25-35 MPH. MIXING HEIGHT.......4000-5000 FT AGL. TRANSPORT WINDS.....WEST 20-25 MPH. SMOKE DISPERSAL.....VERY GOOD UNTIL 2000...THEN GOOD. .SUNDAY... SKY/WEATHER.........PARTLY CLOUDY(55-60%) UNTIL 1200...THEN MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS. MAX TEMPERATURE.....51-61. 24 HR TREND......4-7 DEGREES COOLER. MIN HUMIDITY........32-42%. 24 HR TREND......4-7% WETTER. 20-FOOT WINDS....... VALLEYS/LWR SLOPES...WEST 10-16 MPH. GUSTS UP TO 25 MPH INCREASING TO 35 MPH IN THE AFTERNOON. RIDGES/UPR SLOPES....WEST 14-24 MPH. GUSTS UP TO 35 MPH INCREASING TO 45 MPH IN THE AFTERNOON. HAINES INDEX........2 VERY LOW. LAL.................1 UNTIL 1200...THEN 4. CWR.................0 PERCENT UNTIL 1200...THEN 10 PERCENT. 15K FT MSL WINDS....WEST 35-45 MPH. MIXING HEIGHT.......9500-10500 FT AGL. TRANSPORT WINDS.....WEST 25-30 MPH UNTIL 1700...THEN AROUND 35 MPH. SMOKE DISPERSAL.....GOOD UNTIL 0900. EXCELLENT AFTER 1500. .SUNDAY NIGHT...MOSTLY CLEAR. SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 30S. WEST WINDS 10-16 MPH. .LABOR DAY...PARTLY CLOUDY. HIGHS IN THE UPPER 50S. WEST WINDS 13-20 MPH. .TUESDAY...MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 60S. WEST WINDS 10-16 MPH. .WEDNESDAY...MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 60S. WEST WINDS 9-15 MPH.
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