FNUS75 KCYS 020237
FWSCYS

SPOT FORECAST FOR COW CAMP...USFS
NATIONAL WEATHER SERVICE CHEYENNE WY
737 PM MST SUN MAR 1 2009

FORECAST IS BASED ON IGNITION TIME OF 1100 MST ON MARCH 02.

...IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE...

.DISCUSSION...
A LARGE AREA OF HIGH PRESSURE WILL CONTINUE TO BRING DRY WEATHER
CONDITIONS TO THE BURN SITE THROUGH MID-WEEK. INTERMITTENT
MID/HIGH CLOUDS WILL PASS OVERHEAD...THOUGH THEY WILL NOT HAVE
MUCH IMPACT ON TEMPERATURES. WEST WINDS WILL KICK UP MONDAY
MORNING. HOWEVER...WINDS MAY DECREASE SOME MONDAY AFTERNOON AND
TURN A BIT MORE SOUTHWEST DURING THE AFTERNOON. THIS WILL BE
SHORT-LIVED HOWEVER...AS THEY WILL TURN BACK WESTERLY AND
INCREASE AGAIN FOR MONDAY NIGHT AND TUESDAY. HIGH TEMPERATURES
WILL BE IN THE LOW TO MID 60'S AT THE BURN SITE FOR BOTH MONDAY
AND TUESDAY...WITH MINIMUM RH'S DIPPING INTO THE 20 TO 25 PERCENT
RANGE.

.MONDAY...

SKY/WEATHER.........PARTLY CLOUDY SKIES BECOMING MOSTLY CLOUDY BY
                    AROUND NOON.
MAX TEMPERATURE.....62-65.
MIN HUMIDITY........20-25 PERCENT.
WIND (20 FT)........WEST WINDS OF 12 TO 17 MPH WITH GUSTS TO 25 MPH...
                    DECREASING TO 10 TO 15 MPH WITH GUSTS TO 20 MPH AFTER
                    NOON.
CWR.................0 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1700-2400 FT AGL.
TRANSPORT WINDS.....WEST/SOUTHWEST AROUND 15 MPH.
SMOKE DISPERSAL.....FAIR BECOMING GOOD BY AFTERNOON (16600-40300 KNOT-FT).

.MONDAY NIGHT...

SKY/WEATHER.........MOSTLY CLOUDY SKIES IN THE EVENING...BECOMING PARTLY
                    CLOUDY AFTER MIDNIGHT.
MIN TEMPERATURE.....30 TO 34.
MAX HUMIDITY........70-75 PERCENT.
WIND (20 FT)........WEST AT 15 TO 20 MPH WITH GUSTS TO 25 MPH UNTIL MIDNIGHT...
                    THEN WEST AT 10 TO 15 MPH.
CWR.................0 PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......200-1200 FT AGL.
TRANSPORT WINDS.....WEST/SOUTHWEST AROUND 12 MPH.
SMOKE DISPERSAL.....POOR (1200-8300 KNOT-FT).

.TUESDAY...

SKY/WEATHER.........PARTLY CLOUDY UNTIL NOON...THEN MOSTLY SUNNY.
MAX TEMPERATURE.....62-65.
MIN HUMIDITY........25 PERCENT.
WIND (20 FT)........WEST WINDS 10 TO 15 MPH...WITH GUSTS TO 20 MPH UNTIL NOON...
                    THE INCREASING TO 15 TO 20 MPH WITH GUSTS TO 30 MPH.
CWR.................0 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1900-3500 FT AGL.
TRANSPORT WINDS.....WEST AROUND 20 MPH.
SMOKE DISPERSAL.....FAIR BECOMING EXCELLENT AFTER NOON (22700-72800 KNOT-FT).

$$
FORECASTER...HAHN
REQUESTED BY...CLAY WESTBROOK
TYPE OF REQUEST...PRESCRIBED
.TAG 20090302.COWCA.01/CYS