Colorado Fire Weather Zone 215

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FIRE WEATHER PLANNING FORECAST FOR NORTHEAST AND NORTH CENTRAL
COLORADO NATIONAL WEATHER SERVICE DENVER/BOULDER CO 439 AM MDT SUN APR 20 2014 .DISCUSSION...TODAY AND TONIGHT...MOISTURE WRAPPING BACK INTO NORTHEAST COLORADO AROUND AN UPPER LEVEL LOW PRESSURE SYSTEM TRACKING ACROSS SOUTHEAST COLORADO WILL HELP PRODUCE ANOTHER ROUND OF SHOWERS AND ISOLATED THUNDERSTORMS LATER TODAY. THE THUNDERSTORMS WILL LARGELY BE CONFINED TO THE HIGHER ELEVATIONS AS THE AIRMASS ON THE PLAINS WILL NOT BE AS UNSTABLE. RAINFALL AMOUNTS SHOULD GENERALLY BE LIGHT. SHOWERS SHOULD QUICKLY END THIS EVENING AS THIS STORM SYSTEM MOVES EAST AWAY FROM COLORADO. HOWEVER...ANOTHER SURGE OF COOL...MOIST AIR IS EXPECTED TO PUSH UP AGAINST THE FRONT RANGE LATE TONIGHT...PRODUCING LOW CLOUDS BUT NO PRECIPITATION. LONG TERM DISCUSSION...MONDAY THROUGH THURSDAY...AN UPPER LEVEL TROF WILL MOVE INLAND OFF THE WEST COAST ON TUESDAY. THIS WILL RESULT IN AN INCREASING SOUTHWEST FLOW ALOFT OVER COLORADO. IN ADDITION... WARMER TEMPERATURES AND LOWER HUMIDITY LEVELS MAY LEAD TO ELEVATED FIRE DANGER OVER THE PLAINS ON TUESDAY AFTERNOON. ISOLATED THUNDERSTORMS ARE ALSO POSSIBLE...ESPECIALLY OVER FAR EASTERN COLORADO. A COLD FRONT WILL SWEEP OVER THE REGION LATE WEDNESDAY AND WEDNESDAY NIGHT AS WINDS SHIFT NORTHWEST ALONG WITH COOLER TEMPERATURES. DRY AND COOLER ON THURSDAY BEHIND THE COLD FRONT. ...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... LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- INCLUDING ESTES PARK...GLENDEVEY...LARAMIE RIVER VALLEY... NEDERLAND...RED FEATHER LAKES 439 AM MDT SUN APR 20 2014 .TODAY... SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 1200...THEN MOSTLY CLOUDY(60-65%). ISOLATED RAIN SHOWERS AFTER 0900 UNTIL 1300...THEN SCATTERED RAIN SHOWERS AND ISOLATED THUNDERSTORMS. MAX TEMPERATURE.....55-65. 24 HR TREND......4-7 DEGREES WARMER. MIN HUMIDITY........28-38%. 24 HR TREND......10-15% DRIER. 20-FOOT WINDS....... VALLEYS/LWR SLOPES...NORTHWEST 8-14 MPH WITH GUSTS TO 25 MPH. RIDGES/UPR SLOPES....NORTHWEST 8-14 MPH WITH GUSTS TO 20 MPH. HAINES INDEX........3 VERY LOW. LAL.................1 UNTIL 1300...THEN 2. CWR.................0 PERCENT UNTIL 1300...THEN 10 PERCENT. 10K FT FREE WINDS...NORTHWEST 15-20 MPH. MIXING HEIGHT.......10000-11000 FT AGL. TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH. SMOKE DISPERSAL.....POOR UNTIL 1100...THEN GOOD. .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY(40-50%). ISOLATED RAIN SHOWERS UNTIL 2300. MIN TEMPERATURE.....32-40. 24 HR TREND......4-7 DEGREES COOLER. MAX HUMIDITY........74-84%. 24 HR TREND......4-7% WETTER. 20-FOOT WINDS....... VALLEYS/LWR SLOPES...NORTHWEST 8-12 MPH WITH GUSTS TO 20 MPH IN THE EVENING BECOMING DOWNSLOPE/DOWNVALLEY 2-8 MPH. RIDGES/UPR SLOPES....NORTHWEST 8-13 MPH WITH GUSTS TO 20 MPH IN THE EVENING BECOMING DOWNSLOPE/DOWNVALLEY 2-8 MPH. HAINES INDEX........3 VERY LOW. LAL.................1. CWR.................10 PERCENT UNTIL 1900...THEN 0 PERCENT. 10K FT FREE WINDS...NORTHWEST 20-30 MPH. MIXING HEIGHT.......2000-3000 FT AGL. TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH UNTIL 0500...THEN LIGHT AND VARIABLE. SMOKE DISPERSAL.....GOOD UNTIL 2100...THEN POOR. .MONDAY... SKY/WEATHER.........PARTLY CLOUDY(40-50%). SLIGHT CHANCE OF THUNDERSTORMS AFTER 1200. MAX TEMPERATURE.....56-64. 24 HR TREND......LITTLE CHANGE. MIN HUMIDITY........28-34%. 24 HR TREND......4-7% DRIER. 20-FOOT WINDS....... VALLEYS/LWR SLOPES...UPSLOPE/UPVALLEY 4-10 MPH. RIDGES/UPR SLOPES....UPSLOPE/UPVALLEY 4-10 MPH. HAINES INDEX........3 VERY LOW. LAL.................1 UNTIL 1200...THEN 3. CWR.................0 PERCENT. 10K FT FREE WINDS...WEST 20-30 MPH. MIXING HEIGHT.......10000-11000 FT AGL. TRANSPORT WINDS.....LIGHT AND VARIABLE UNTIL 1000...THEN SOUTHWEST AROUND 10 MPH. SMOKE DISPERSAL.....POOR UNTIL 1200...THEN GOOD. .MONDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 30S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .TUESDAY...PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. HIGHS IN THE MID 60S. SOUTHWEST WINDS 9-15 MPH. .WEDNESDAY...PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 50S. WEST WINDS 13-23 MPH. .THURSDAY...PARTLY CLOUDY. LOWS AROUND 30. HIGHS IN THE LOWER 50S. WEST WINDS 13-20 MPH.
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