FNUS75 KCYS 180820
FWSCYS

SPOT FORECAST FOR COTTONWOOD FIRE...CRAWFORD FIRE DEPT
NATIONAL WEATHER SERVICE CHEYENNE WY
220 AM MDT MON JUN 18 2012

FORECAST IS BASED ON REQUEST TIME OF 0207 MDT ON JUNE 18.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 9 PM MDT
THIS EVENING...

.DISCUSSION...

A COLD FRONT LIES OVER THE NORTHERN PANHANDLE INTO NIOBRARA COUNTY
THIS MORNING. EXPECT THIS FRONT TO SHIFT NORTHEAST BY MID MORNING.
UNTIL THEN...EXPECT A NORTHERLY WIND AT 10 TO 14 MPH. WHEN THE FRONT
SHIFTS NORTH AROUND 6 AM...WINDS WILL SHIFT BACK TO THE WEST AND
SOUTHWEST AND INCREASE IN INTENSITY. MORNING HUMIDITIES NOT MUCH
BETTER THAN 50 PERCENT AND WILL DROP OFF SIGNIFICANTLY AFTER SUNRISE.
WEST TO SOUTHWEST WINDS OF 15 TO 20 MPH WITH GUSTS TO 35 MPH EXPECTED
AS EARLY AS 10 AM...PERSISTING INTO THE EARLY EVENING HOURS.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT).
MAX TEMPERATURE.....AROUND 91.
MIN HUMIDITY........10 PERCENT.
WIND (20 FT)........NORTH WINDS 6 TO 8 MPH AND GUSTY SHIFTING TO
                    THE SOUTHWEST 10 TO 15 MPH AFTER 6 AM. INCREASING
                    TO 15 TO 20 MPH SUSTAINED WITH GUSTS TO 35 MPH
                    AFTER 10 AM...PERSISTING THROUGH THE AFTERNOON..
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5800 FT AGL INCREASING TO 11600 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....WEST AROUND 14 MPH.
SMOKE DISPERSAL.....EXCELLENT TO EXCELLENT (62500-170600 KNOT-FT).

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT).
MIN TEMPERATURE.....AROUND 58.
MAX HUMIDITY........57 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 15 TO 20 MPH WITH GUSTS TO 35 MPH
                    UNTIL 8 PM. THEN 8 TO 14 MPH AFTER 8 PM. TURNING
                    TO THE WEST 7 TO 10 MPH AFTER MIDNIGHT.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......6200 FT AGL DECREASING TO 300 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST AROUND 12 MPH.
SMOKE DISPERSAL.....POOR TO EXCELLENT (1300-98000 KNOT-FT).

.TUESDAY...

SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (35-45 PERCENT).
MAX TEMPERATURE.....AROUND 77.
MIN HUMIDITY........18 PERCENT.
WIND (20 FT)........BREEZY. NORTHWEST WINDS 17 TO 26 MPH SHIFTING
                    TO THE NORTH 15 TO 16 MPH LATE IN THE
                    AFTERNOON. GUSTS UP TO 45 MPH DECREASING TO 35
                    MPH IN THE AFTERNOON.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3700 FT AGL INCREASING TO 7800 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....NORTHWEST AROUND 19 MPH.
SMOKE DISPERSAL.....GOOD TO EXCELLENT (58800-130300 KNOT-FT).

$$
FORECASTER...CLAYCOMB
REQUESTED BY...BRIAN PRASSER
TYPE OF REQUEST...WILDFIRE
.TAG 20120618.COTTO.01/CYS