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 330 AM MDT THU AUG 28 2014 .DISCUSSION...TODAY AND TONIGHT...AN UPPER LEVEL TROUGH WILL MOVE ACROSS THE AREA BRINGING A GOOD CHANCE OF SHOWERS AND THUNDERSTORMS. THE CHANCE OF PRECIPITATION WILL DECREASE TONIGHT AS THE SYSTEM MOVES EAST OF THE AREA. TEMPERATURES WILL REMAIN BELOW NORMAL. LONG TERM DISCUSSION...FRIDAY THROUGH MONDAY...DRIER AND WARMER CONDITIONS RETURN TO THE FORECAST AREA ON FRIDAY WITH AN UPPER LEVEL HIGH PRESSURE RIDGE MOVING IN FROM THE WEST. THERE IS STILL A CHANCE OF THUNDERSTORMS OVER THE HIGHER ELEVATIONS LATE IN THE DAY THE RESULT OF DAYTIME HEATING AND UPSLOPE/UPVALLEY FLOW. OVER THE WEEKEND...THE HIGH PRESSURE RIDGE MOVES EAST ALLOWING A LOW PRESSURE TROUGH TO MOVE DOWN FROM THE PACIFIC NORTHWEST. NEAR TO SLIGHTLY ABOVE TEMPERATURES ON SATURDAY DECREASE BY A FEW DEGREES ON SUNDAY WITH THE PASSAGE OF THIS TROUGH AND A WEAK COLD FRONT. THE CHANCE OF SHOWERS AND THUNDERSTORMS WILL ALSO INCREASE MAINLY ACROSS NORTHERN PORTIONS OF THE FORECAST AREA. DRIER CONDITIONS SHOULD RETURN FOR LABOR DAY WITH TEMPERATURES OVERALL A FEW DEGREES LOWER THAN THE DAY BEFORE. ...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 330 AM MDT THU AUG 28 2014 .TODAY... SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS UNTIL 1200. ISOLATED THUNDERSTORMS AFTER 0900 UNTIL 1200...THEN CHANCE OF THUNDERSTORMS. MAX TEMPERATURE.....58-68. 24 HR TREND......2-4 DEGREES COOLER. MIN HUMIDITY........44-54%. 24 HR TREND......4-7% DRIER. 20-FOOT WINDS....... VALLEYS/LWR SLOPES...NORTHWEST 8-14 MPH WITH GUSTS TO 20 MPH. RIDGES/UPR SLOPES....NORTHWEST 8-14 MPH WITH GUSTS TO 20 MPH. HAINES INDEX........2 VERY LOW. LAL.................1 UNTIL 0900...THEN 2 UNTIL 1200...THEN 4. CWR.................10 PERCENT UNTIL 1200...THEN 20 PERCENT. 15K FT MSL WINDS....NORTHWEST 20-30 MPH. MIXING HEIGHT.......6500-7500 FT AGL. TRANSPORT WINDS.....NORTHWEST 15-20 MPH. SMOKE DISPERSAL.....GOOD UNTIL 1200...THEN VERY GOOD. .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY(35-45%). SLIGHT CHANCE OF THUNDERSTORMS UNTIL 2400. MIN TEMPERATURE.....41-51. 24 HR TREND......LITTLE CHANGE. MAX HUMIDITY........72-82%. 24 HR TREND......7-10% DRIER. 20-FOOT WINDS....... VALLEYS/LWR SLOPES...DOWNSLOPE/DOWNVALLEY 2-8 MPH BECOMING WEST 8-12 MPH AFTER MIDNIGHT. RIDGES/UPR SLOPES....NORTHWEST 8-12 MPH. HAINES INDEX........2 VERY LOW. LAL.................3 UNTIL 2400...THEN 1. CWR.................10 PERCENT UNTIL 2100...THEN 0 PERCENT. 15K FT MSL WINDS....NORTH 20-30 MPH. MIXING HEIGHT.......2000-3000 FT AGL. TRANSPORT WINDS.....NORTHWEST 10-15 MPH. SMOKE DISPERSAL.....GOOD UNTIL 2100...THEN POOR. .FRIDAY... SKY/WEATHER.........PARTLY CLOUDY(30-40%). SLIGHT CHANCE OF THUNDERSTORMS AFTER 1200. MAX TEMPERATURE.....65-75. 24 HR TREND......4-7 DEGREES WARMER. MIN HUMIDITY........28-38%. 24 HR TREND......10-15% DRIER. 20-FOOT WINDS....... VALLEYS/LWR SLOPES...WEST 8-12 MPH IN THE MORNING BECOMING UPSLOPE/UPVALLEY 4-10 MPH. RIDGES/UPR SLOPES....NORTHWEST 8-13 MPH SHIFTING TO THE NORTHEAST 8-12 MPH IN THE AFTERNOON. HAINES INDEX........3 VERY LOW. LAL.................1 UNTIL 1200...THEN 3. CWR.................0 PERCENT. 15K FT MSL WINDS....NORTHWEST 15-25 MPH. MIXING HEIGHT.......10500-11500 FT AGL. TRANSPORT WINDS.....NORTHWEST 10-15 MPH UNTIL 1400...THEN LIGHT AND VARIABLE. SMOKE DISPERSAL.....POOR UNTIL 0900...THEN GOOD. .FRIDAY NIGHT...MOSTLY CLEAR. SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 40S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .SATURDAY...PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. HIGHS IN THE MID 70S. SOUTHWEST WINDS 8-12 MPH. .SUNDAY...PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS AROUND 50. HIGHS IN THE UPPER 60S. WEST WINDS 9-15 MPH. .LABOR DAY...MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S. WEST WINDS 8-13 MPH.
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