FNUS75 KCYS 291635
FWSCYS

SPOT FORECAST FOR DOUTHIT FIRE...HARRISON
NATIONAL WEATHER SERVICE CHEYENNE WY
1035 AM MDT WED AUG 29 2012

FORECAST IS BASED ON REQUEST TIME OF 1008 MDT ON AUGUST 29.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING...

.DISCUSSION...
HOT...DRY AND INCREASINGLY BREEZY CONDITIONS WILL CONTINUE TODAY
AS THE FIRE SITE REMAINS OUT AHEAD OF A COLD FRONT THAT STILL
REMAINS BACK UP IN MONTANA AT THIS HOUR. TEMPERATURES WILL CLIMB
INTO THE TRIPLE DIGITS AND MINIMUM RELATIVE HUMIDITIES WILL DIP
DOWN TO NEAR THE SINGLE DIGITS. EXPECT ISOLATED MOSTLY DRY
THUNDERSTORMS TO DEVELOP ONCE AGAIN NEAR THE FIRE THIS AFTERNOON.
WINDS WILL BE ERRATIC AND GUSTY IN AND AROUND THIS ACTIVITY. WINDS
WILL BE SOUTHWEST AND MAY TURN NORTHWEST BRIEFLY AFTER 1700. ANY
SHOWER AND THUNDERSTORM ACTIVITY WILL DISSIPATE BY MID-EVENING.
COLD FRONT WILL PUSH SOUTH THROUGH THE FIRE AREA AROUND 0300 AND
0400. WINDS WILL TURN NORTH/NORTHEASTERLY BEHIND THE FRONT
USHERING IN COOLER TEMPERATURES FOR THURSDAY. TEMPERATURES WILL
BE SOME 10 TO 15 DEGREES COOLER FOR THURSDAY...WITH AFTERNOON
HIGHS ONLY REACHING THE UPPER 80S.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT) UNTIL 1200...THEN
                    PARTLY CLOUDY (40-50 PERCENT). ISOLATED SHOWERS AND
                    DRY THUNDERSTORMS AFTER 1300.
MAX TEMPERATURE.....99 TO 102.
MIN HUMIDITY........9 TO 12 PERCENT.
WIND (20 FT)........SOUTHWEST AT 10 TO 15 MPH WITH GUSTS OF UP TO 25 MPH
                    UNTIL 1700...THEN NORTHWEST AT 10 TO 15 MPH WITH GUSTS
                    TO 25 MPH. ERRATIC WIND GUSTS OF UP TO 45 MPH AROUND
                    SHOWERS/STORMS.
CWR.................0 PERCENT UNTIL 1300...THEN 10 PERCENT.
LAL.................1 UNTIL 1300...THEN 6.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......10700 FT AGL INCREASING TO 15500 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 TO 20 MPH.
SMOKE DISPERSAL.....EXCELLENT (115300-291200 KNOT-FT).

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) UNTIL 0100...THEN
                    BECOMING MOSTLY SUNNY (10-20 PERCENT). ISOLATED
                    SHOWERS AND MOSTLY DRY THUNDERSTORMS IN THE EVENING.
MIN TEMPERATURE.....65 TO 70 DEGREES.
MAX HUMIDITY........40 TO 45 PERCENT.
WIND (20 FT)........VARIABLE FROM NORTHWEST TO SOUTHWEST AT 5 TO 10 MPH
                    UNTIL 0300...THEN BECOMING NORTH/NORTHEAST AT 5 TO 15
                    MPH WITH GUSTS TO 25 MPH.
CWR.................10 PERCENT DECREASING TO 0 PERCENT AFTER
                    MIDNIGHT.
LAL.................6 UNTIL 2100...THEN 1.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......8700 FT AGL DECREASING TO 100 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH UNTIL 0300...THEN NORTHWEST
                    AT 10 TO 20 MPH WITH GUSTS TO 25.
SMOKE DISPERSAL.....EXCELLENT DECREASING TO POOR (1400-136900 KNOT-FT).

.THURSDAY...

SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT UNTIL 0900...THEN
                    PARTLY CLOUDY (35-45 PERCENT).
MAX TEMPERATURE.....AROUND 85 TO 90.
MIN HUMIDITY........17 TO 21 PERCENT.
WIND (20 FT)........NORTHEAST AT 10 TO 15 MPH WITH GUSTS TO 20 MPH. GUSTS
                    TO 25 MPH POSSIBLE AFTER NOON.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1200 FT AGL INCREASING TO 3900 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....NORTHEAST AROUND 15 MPH.
SMOKE DISPERSAL.....POOR BECOMING GOOD (12300-58200 KNOT-FT).

$$
FORECASTER...HAHN
REQUESTED BY...J W  GEISER
TYPE OF REQUEST...WILDFIRE
.TAG 20120829.DOUTH.01/CYS