FNUS75 KCYS 091541
FWSCYS

SPOT FORECAST FOR LIBBY...USFS
NATIONAL WEATHER SERVICE CHEYENNE WY
941 AM MDT THU AUG 9 2012

FORECAST IS BASED ON REQUEST TIME OF 0917 MDT ON AUGUST 09.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
THE UPPER HIGH PRESSURE SYSTEM WILL BE NEARLY STATIONARY OVER THE FOUR
CORNERS REGION TODAY. A WEAK UPPER LEVEL DISTURBANCE AND A LITTLE MORE
MOISTURE WILL RESULT IN ISOLATED HIGH-BASED SHOWERS AND THUNDERSTORMS
THIS AFTERNOON AND EVENING IN THE VICINITY OF THE BURN SITE. DUE TO
THE DRY LOW LEVELS...THE POTENTIAL FOR DRY LIGHTNING AND GUSTY AND
ERRATIC WINDS WILL EXIST. WINDS WILL BE WEST TO SOUTHWEST TODAY AND
TONIGHT.

.TODAY...

SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 70.
MIN HUMIDITY........20 PERCENT.
WIND (20 FT)........SOUTHWEST 5 TO 10 MPH BECOMING WEST 10 TO 12
                    MPH WITH GUSTS OF 15 TO 20 MPH IN THE AFTERNOON.
CWR.................0 PERCENT INCREASING TO 20 PERCENT IN THE
                    AFTERNOON.
LAL.................1 THEN 2 AFTER NOON.
MIXING HEIGHT.......7900 FT AGL INCREASING TO 11200 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS IN THE EVENING.
MIN TEMPERATURE.....AROUND 50.
MAX HUMIDITY........65 PERCENT.
WIND (20 FT)........WEST WINDS 8 TO 10 MPH WITH GUSTS UP TO 15 MPH
                    EARLY IN THE EVENING BECOMING SOUTHWEST 4 TO 7
                    MPH.
CWR.................20 PERCENT DECREASING TO 10 PERCENT AFTER
                    MIDNIGHT.
LAL.................2 IN THE EVENING THEN 1.
MIXING HEIGHT.......6100 FT AGL DECREASING TO 700 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH BECOMING SOUTHWEST AROUND
                    10 MPH.

$$
FORECASTER...JAMSKI
REQUESTED BY...TIM DOWNHAM
TYPE OF REQUEST...WILDFIRE
.TAG 20120809.LIBBY.01/CYS