FNUS75 KCYS 310507
FWSCYS

SPOT FORECAST FOR DOUTHIT FIRE...HARRISON FIRE DEPT
NATIONAL WEATHER SERVICE CHEYENNE WY
1107 PM MDT THU AUG 30 2012

FORECAST IS BASED ON REQUEST TIME OF 2244 MDT ON AUGUST 30.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...RED FLAG WARNING IN EFFECT FROM 9 AM TO 9 PM MDT FRIDAY...

.DISCUSSION...
LIGHT EAST WINDS WILL SLOWLY SHIFT TO THE SOUTHEAST LATE TONIGHT
AS A WARM FRONT MOVES ACROSS THE AREA...ALTHOUGH WINDS MAY BE LIGHT
AND VARIABLE AT TIMES TONIGHT. WINDS WILL INCREASE SUBSTATIALLY AFTER
SUNRISE. SOUTHERLY WINDS OF 15 TO 20 MPH WITH FREQUENT GUSTS TO 30
MPH CAN BE EXPECTED BY LATE MORNING AND WILL CONTINUE INTO FRIDAY
EVENING. HUMIDITY VALUES TO DROP TO 10 TO 15 PERCENT BY LATE FRIDAY
AFTERNOON.


.REST OF TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT).
MIN TEMPERATURE.....58-63.
MAX HUMIDITY........58-64 PERCENT.
WIND (20 FT)........EAST WINDS 5 TO 9 MPH BECOMING SOUTHEAST
                    LATE TONIGHT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......600-1200 FT AGL.
TRANSPORT WINDS.....EAST AROUND 12 MPH.
SMOKE DISPERSAL.....BECOMING POOR (4900 KNOT-FT).

.FRIDAY...

SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT).
MAX TEMPERATURE.....89-94.
MIN HUMIDITY........8-14 PERCENT.
WIND (20 FT)........SOUTH WINDS 7 TO 12 MPH WITH HIGHER GUSTS
                    INCREASING TO 17 TO 20 MPH WITH GUSTS UP TO
                    35 MPH IN THE AFTERNOON.
CWR.................5 PERCENT.
LAL.................1.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4900 FT AGL INCREASING TO 8300 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTH AROUND 20 MPH.
SMOKE DISPERSAL.....BECOMING EXCELLENT (150000-223400 KNOT-FT).

$$
FORECASTER...LIEBL
REQUESTED BY...JW GEISER
TYPE OF REQUEST...WILDFIRE
.TAG 20120830.DOUTH.01/CYS