National Weather Service Weather Forecast Office

Colorado Fire Weather Zone 216

FIRE WEATHER PLANNING FORECAST FOR NORTHEAST AND NORTH CENTRAL
COLORADO
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
312 PM MDT FRI MAY 24 2013

.DISCUSSION...TONIGHT AND SATURDAY...SOUTHWESTERLY FLOW ALOFT WILL
CONTINUE OVER THE FORECAST AREA TONIGHT AND SATURDAY.  THE AIRMASS
WILL BE DRY OVER MUCH OF THE FORECAST AREA EXCEPT THE EASTERN PLAINS
TONIGHT AND SATURDAY. HUMIDITIES WILL BE IN THE LOWER TEENS OVER
MOST OF THE AREA SATURDAY WITH SOUTHWEST WINDS GUSTING BETWEEN 20
AND 30 MPH IN THE HIGH COUNTRY AS WELL AS OVER THE PALMER DIVIDE.
FUELS HAVE BEEN DEEMED NOT RECEPTIVE SO WILL NOT ISSUE HIGHLIGHTS.

LONG TERM DISCUSSION...SATURDAY NIGHT THROUGH WEDNESDAY...SOUTHWEST
FLOW ALOFT WILL CONTINUE THROUGH THE WEEKEND AND INTO EARLY NEXT
WEEK...SO EXPECTING DRIER AND WARMER CONDITIONS THAN NORMAL. HIGHS
IN THE 80S OVER THE PLAINS...IN THE 60S AND 70S IN THE
MOUNTAINS...AND HUMIDITIES IN THE LOWER TEENS ARE EXPECTED THROUGH
TUESDAY. THESE CONDITIONS DAY AFTER DAY WILL LIKELY BEGIN TAKING A
TOLL ON THE FUELS AROUND THE STATE...HOWEVER CURRENTLY THE FUELS ARE
LISTED AS STILL BEING GREEN ENOUGH AFTER OUR LATE SEASON MOISTURE.
WILL KEEP EVALUATING THE FUELS EACH DAY TO DETERMINE ANY NEED FOR
FIRE WEATHER HIGHLIGHTS. RIGHT NOW WINDS LOOK TO BE RIGHT AT OR
BELOW CRITERIA. ISOLATED SHOWERS AND THUNDERSTORMS ARE EXPECTED OVER
THE FAR NORTHEASTERN PLAINS EACH AFTERNOON AND EVENING...WITH AN
INCREASE IN COVERAGE ACROSS THE AREA 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...

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
312 PM MDT FRI MAY 24 2013

.TONIGHT...
SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....41-51.
   24 HR TREND......LITTLE CHANGE.
MAX HUMIDITY........39-49%.
   24 HR TREND......MORE THAN 50% DRIER.
20-FOOT WINDS.......
   VALLEYS/LWR SLOPES...DOWNSLOPE/DOWNVALLEY 2-8 MPH.
   RIDGES/UPR SLOPES....DOWNSLOPE/DOWNVALLEY 2-8 MPH. GUSTS UP TO
                        20 MPH IN THE EVENING.
HAINES INDEX........4 LOW.
LAL.................1.
CWR.................0 PERCENT.
10K FT FREE WINDS...SOUTHWEST 30-40 MPH.
MIXING HEIGHT.......17000-18000 FT AGL UNTIL 2000. BELOW 1000 FT
                    AGL AFTER 0300.
TRANSPORT WINDS.....WEST 10-15 MPH UNTIL 2300...THEN LIGHT AND
                    VARIABLE UNTIL 0200...THEN SOUTHWEST AROUND 10
                    MPH.
SMOKE DISPERSAL.....EXCELLENT UNTIL 1900. POOR AFTER 2100.

.SATURDAY...
SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....70-80.
   24 HR TREND......4-7 DEGREES WARMER.
MIN HUMIDITY........10-14%.
   24 HR TREND......4-7% DRIER.
20-FOOT WINDS.......
   VALLEYS/LWR SLOPES...SOUTHWEST 8-13 MPH. GUSTS UP TO 20 MPH IN
                        THE AFTERNOON.
   RIDGES/UPR SLOPES....SOUTHWEST 8-14 MPH WITH GUSTS TO 20 MPH.
HAINES INDEX........4 LOW.
LAL.................1.
CWR.................0 PERCENT.
10K FT FREE WINDS...SOUTHWEST 25-35 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0700. 18500-19500 FT
                    AGL AFTER 0900.
TRANSPORT WINDS.....SOUTHWEST 10-15 MPH UNTIL 0800...THEN 20-25
                    MPH.
SMOKE DISPERSAL.....POOR UNTIL 0700...THEN GOOD UNTIL 0800...THEN
                    VERY GOOD UNTIL 0900...THEN EXCELLENT.