Colorado Fire Weather Zone 216

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FIRE WEATHER PLANNING FORECAST FOR NORTHEAST AND NORTH CENTRAL
COLORADO NATIONAL WEATHER SERVICE DENVER/BOULDER CO 336 PM MDT SUN SEP 21 2014 .DISCUSSION...TONIGHT AND MONDAY....A LOW PRESSURE SYSTEM WILL TRACK FROM NEVADA TONIGHT TO WYOMING MONDAY. THIS WILL CONTINUE TO BRING A MOIST AIRMASS TO COLORADO WITH SCATTERED SHOWERS AND THUNDERSTORMS. SOUTHERLY WINDS WILL BE GUSTY AT TIMES ACROSS THE PLAINS...OTHERWISE LIGHT WINDS WILL PREVAIL. LONG TERM DISCUSSION...MONDAY NIGHT THROUGH FRIDAY...UPPER AIR DISTURBANCE PASSES OVER EASTERN PORTIONS OF WYOMING AND COLORADO MONDAY NIGHT AND TUESDAY. DISTURBANCE THEN MOVES EAST OF THE REGION ALLOWING A STRONG UPPER LEVEL HIGH PRESSURE RIDGE TO BUILD OVER COLORADO MID-WEEK. THIS RIDGE IS FORECAST TO SHIFT EAST OF THE AREA LATE WEEK ALLOWING SOUTHWEST FLOW ALOFT TO BEGIN USHERING IN MOIST SUBTROPICAL AREA FROM THE DESERT SOUTHWEST. ...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... JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- INCLUDING BAILEY...CENTRAL CITY...EVERGREEN...GEORGETOWN...IDAHO SPRINGS...NORTHERN RAMPART RANGE...TARRYALL...WESTCREEK 336 PM MDT SUN SEP 21 2014 .TONIGHT... SKY/WEATHER.........CLOUDY. RAIN SHOWERS LIKELY UNTIL 2200. SLIGHT CHANCE OF THUNDERSTORMS. CHANCE OF RAIN SHOWERS AFTER 2200. MIN TEMPERATURE.....45-53. 24 HR TREND......LITTLE CHANGE. MAX HUMIDITY........83-93%. 24 HR TREND......4-7% DRIER. 20-FOOT WINDS....... VALLEYS/LWR SLOPES...DOWNSLOPE/DOWNVALLEY 2-8 MPH BECOMING SOUTHWEST 9-15 MPH WITH GUSTS TO 25 MPH AFTER MIDNIGHT. RIDGES/UPR SLOPES....SOUTHWEST 10-16 MPH WITH GUSTS TO 30 MPH. HAINES INDEX........2 VERY LOW. LAL.................2. CWR.................40 PERCENT UNTIL 2100. 10 PERCENT AFTER 2300. 15K FT MSL WINDS....SOUTHWEST 15-20 MPH. MIXING HEIGHT.......2500-3500 FT AGL. TRANSPORT WINDS.....SOUTHWEST 10-15 MPH UNTIL 2400...THEN AROUND 20 MPH. SMOKE DISPERSAL.....POOR. .MONDAY... SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS UNTIL 1200... THEN CHANCE OF THUNDERSTORMS. MAX TEMPERATURE.....64-74. 24 HR TREND......LITTLE CHANGE. MIN HUMIDITY........40-50%. 24 HR TREND......10-15% DRIER. 20-FOOT WINDS....... VALLEYS/LWR SLOPES...SOUTHWEST 8-14 MPH WITH GUSTS TO 25 MPH IN THE MORNING BECOMING UPSLOPE/UPVALLEY 4-10 MPH. RIDGES/UPR SLOPES....SOUTHWEST 11-17 MPH WITH GUSTS TO 35 MPH IN THE MORNING BECOMING UPSLOPE/UPVALLEY 4-10 MPH. HAINES INDEX........2 VERY LOW. LAL.................2. CWR.................10 PERCENT UNTIL 1200. 30 PERCENT AFTER 1400. 15K FT MSL WINDS....SOUTHWEST 15-25 MPH. MIXING HEIGHT.......9000-10000 FT AGL. TRANSPORT WINDS.....WEST 15-20 MPH UNTIL 1400...THEN SOUTHWEST AROUND 10 MPH. SMOKE DISPERSAL.....FAIR UNTIL 1100...THEN GOOD. .MONDAY NIGHT... SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS UNTIL 2400. MIN TEMPERATURE.....43-51. 24 HR TREND......LITTLE CHANGE. MAX HUMIDITY........72-82%. 24 HR TREND......10-15% DRIER. 20-FOOT WINDS....... VALLEYS/LWR SLOPES...DOWNSLOPE/DOWNVALLEY 2-8 MPH BECOMING WEST 8-13 MPH WITH GUSTS TO 20 MPH AFTER MIDNIGHT. RIDGES/UPR SLOPES....WEST 9-15 MPH. GUSTS UP TO 25 MPH AFTER MIDNIGHT. HAINES INDEX........2 VERY LOW. LAL.................3 UNTIL 2100...THEN 4 UNTIL 2400...THEN 1. CWR.................10 PERCENT UNTIL 2400...THEN 0 PERCENT. 15K FT MSL WINDS....WEST 20-30 MPH. MIXING HEIGHT.......2500-3500 FT AGL. TRANSPORT WINDS.....WEST 10-15 MPH UNTIL 0300...THEN AROUND 20 MPH. SMOKE DISPERSAL.....FAIR UNTIL 2100...THEN POOR. .TUESDAY... SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200...THEN PARTLY CLOUDY(35-45%). MAX TEMPERATURE.....66-76. 24 HR TREND......LITTLE CHANGE. MIN HUMIDITY........26-36%. 24 HR TREND......20-25% DRIER. 20-FOOT WINDS....... VALLEYS/LWR SLOPES...NORTHWEST 8-14 MPH WITH GUSTS TO 25 MPH. RIDGES/UPR SLOPES....NORTHWEST 9-15 MPH WITH GUSTS TO 25 MPH. HAINES INDEX........2 VERY LOW. LAL.................1. CWR.................0 PERCENT. 15K FT MSL WINDS....WEST 20-30 MPH. MIXING HEIGHT.......9500-10500 FT AGL. TRANSPORT WINDS.....WEST 20-25 MPH UNTIL 1700...THEN NORTHWEST AROUND 15 MPH. SMOKE DISPERSAL.....FAIR UNTIL 0900. VERY GOOD AFTER 1200. .TUESDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 40S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .WEDNESDAY...MOSTLY CLEAR. HIGHS IN THE MID 70S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .THURSDAY...MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE MID 70S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .FRIDAY...PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 70S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH.
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