FNUS75 KCYS 191459
FWSCYS

SPOT FORECAST FOR DRY GULCH...ALBANY COUNTY
NATIONAL WEATHER SERVICE CHEYENNE WY
859 AM MDT SUN SEP 19 2010

FORECAST IS BASED ON REQUEST TIME OF 0845 MDT ON SEPTEMBER 19.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 7 PM MDT THIS
EVENING FOR GUSTY WEST TO SOUTHWEST WINDS AND LOW AFTERNOON
HUMIDITIES...

...FIRE WEATHER WATCH IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING FOR GUSTY WEST TO SOUTHWEST WINDS AND LOW HUMIDITIES...

.DISCUSSION...
WARM AND DRY CONDITIONS EXPECTED FOR THE WILDFIRE THROUGHOUT THE DAY.
WINDS WILL BE ON THE INCREASE THROUGHOUT THE MORNING...INITIALLY FROM
THE SOUTHEAST AT 7 TO 10 MPH...BUT THEN SWITCHING TO THE SOUTHWEST
AND BECOMING VERY GUSTY BY NOON. AFTERNOON HUMIDITIES WILL DROP INTO
THE SINGLE DIGITS BY MID AFTERNOON...CREATING VERY DANGEROUS FIRE
WEATHER CONDITIONS AND RAPID FIRE SPREAD TOWARDS THE NORTHEAST.
SOUTHWEST TO WEST WINDS EXPECTED TO REMAIN GUSTY OVERNIGHT WITH POOR
HUMIDITY RECOVERIES. EVEN STRONGER WEST TO SOUTHWEST WINDS IN STORE
FOR THE BURN AREA MONDAY AS WINDS WILL INCREASE TO 20 TO 25 MPH WITH
GUSTS TO 45 MPH POSSIBLE BY LATE MONDAY MORNING.

.TODAY...

SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....AROUND 80.
MIN HUMIDITY........9 PERCENT.
WIND (20 FT)........UPSLOPE/UPVALLEY 5-9 MPH BECOMING SOUTHWEST 10
                    TO 18 MPH WITH GUSTS TO AROUND 35 MPH IN THE
                    LATE MORNING AND AFTERNOON.
CWR.................0 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......6900 FT AGL INCREASING TO 9900 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST AROUND 19 MPH.
SMOKE DISPERSAL.....EXCELLENT TO EXCELLENT (66800-215400 KNOT-FT).

.TONIGHT...

SKY/WEATHER.........CLEAR (0-10 PERCENT).
MIN TEMPERATURE.....AROUND 49.
MAX HUMIDITY........41 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 8 TO 16 MPH. GUSTS UP TO 30 MPH
                    DECREASING TO 15 MPH AFTER MIDNIGHT.
CWR.................0 PERCENT.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......5000 FT AGL DECREASING TO 100 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.
SMOKE DISPERSAL.....POOR TO EXCELLENT (1500-93200 KNOT-FT).

.MONDAY...

SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT).
MAX TEMPERATURE.....AROUND 75.
MIN HUMIDITY........16 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 10 TO 21 MPH WITH GUSTS TO
                    AROUND 35 MPH SHIFTING TO THE WEST 23 TO 24 MPH
                    WITH GUSTS TO AROUND 40 MPH LATE IN THE
                    AFTERNOON.
CWR.................0 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5400 FT AGL INCREASING TO 10500 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST AROUND 24 MPH.
SMOKE DISPERSAL.....EXCELLENT TO EXCELLENT (68600-292500 KNOT-FT).

$$
FORECASTER...CLAYCOMB
REQUESTED BY...THERON RITZMANN
TYPE OF REQUEST...WILDFIRE
.TAG 20100919.DRYGU.01/CYS