FNUS75 KCYS 271719
FWSCYS

SPOT FORECAST FOR FERRIS...BLM
NATIONAL WEATHER SERVICE CHEYENNE WY
1119 AM MDT TUE SEP 27 2011

FORECAST IS BASED ON REQUEST TIME OF 1104 MDT ON SEPTEMBER 27.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY EVENING...

.DISCUSSION...
HIGH PRESSURE OVER SOUTHWESTERN WYOMING WILL CONTINUE TO CAUSE A WEST
TO SOUTHWEST WIND OVER THE BURN AREA TODAY. AFTERNOON HUMIDITIES EXPECTED
TO FALL TO THE MID TO UPPER TEENS TODAY WITH WINDS GUSTING NEAR 20 MPH.
WINDS ARE EXPECTED TO INCREASE TONIGHT AS A COLD FRONT APPROACHES FROM
THE NORTHWEST. EXPECT A SOUTHWEST WIND OF 10 TO 15 MPH WITH INCREASING
GUSTS AFTER 9 PM THIS EVENING. BY WEDNESDAY MORNING SOUTHWEST WINDS ARE
EXPECTED TO BE AROUND 15 TO 18 MPH SUSTAINED WITH GUSTS TO 30 MPH. LATE
MORNING AND EARLY AFTERNOON HUMIDITIES WILL FALL BELOW 15 PERCENT AND
CREATE CRITICAL FIRE WEATHER CONDITIONS. THE FRONT IS EXPECTED TO PASS
THROUGH NORTHERN CARBON COUNTY BY MID AFTERNOON WITH A NORTHWEST WIND
BECOMING NORTHEASTERLY WEDNESDAY EVENING.

.TODAY...

SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....AROUND 75.
MIN HUMIDITY........15 PERCENT.
WIND (20 FT)........UPSLOPE/UPVALLEY 5-9 MPH BECOMING WEST 10 TO 12
                    MPH WITH GUSTS TO 22 MPH IN THE AFTERNOON.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......6000 FT AGL INCREASING TO 8600 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST AROUND 14 MPH.
SMOKE DISPERSAL.....GOOD TO EXCELLENT (35800-128600 KNOT-FT).

.TONIGHT...

SKY/WEATHER.........CLEAR (0-10 PERCENT).
MIN TEMPERATURE.....AROUND 46.
MAX HUMIDITY........51 PERCENT.
WIND (20 FT)........WEST WINDS 8 TO 12 MPH AND GUSTY UNTIL EARLY
                    MORNING BECOMING DOWNSLOPE/DOWNVALLEY 4-7 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4400 FT AGL DECREASING TO 200 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....WEST AROUND 11 MPH.
SMOKE DISPERSAL.....POOR TO EXCELLENT (1100-61700 KNOT-FT).

.WEDNESDAY...

SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....AROUND 77.
MIN HUMIDITY........12 PERCENT.
WIND (20 FT)........UPSLOPE/UPVALLEY 5-9 MPH BECOMING WEST 12 TO 18
                    MPH WITH GUSTS TO 30 MPH IN THE LATE MORNING AND
                    AFTERNOON.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......3900 FT AGL INCREASING TO 7900 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....WEST AROUND 11 MPH.
SMOKE DISPERSAL.....FAIR TO EXCELLENT (27300-87200 KNOT-FT).

$$
FORECASTER...CLAYCOMB
REQUESTED BY...ZACH HARTSHORN
TYPE OF REQUEST...WILDFIRE
.TAG 20110927.FERRI.01/CYS