FNUS75 KMSO 190335
FWSMSO

SPOT FORECAST FOR PETTY ROCK 4
NATIONAL WEATHER SERVICE MISSOULA MT
935 PM MDT MON MAY 18 2009

FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON MAY 19.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...COLD FRONT IS EXPECTED TO MOVE THROUGH THE BURN
AREA BETWEEN 1200 MDT AND 1500 MDT. AHEAD OF THE FRONT...SHOWERS AND
ISOLATED THUNDERSTORMS WILL DEVELOP WITH THE BETTER CHANCE OF
WETTING PRECIPITATION WITH AND BEHIND THE FRONT IN THE MID TO LATE
AFTERNOON. WINDS WILL INCREASE LATE MORNING AS THE FRONT
APPROACHES AND SHIFT FROM SOUTHWEST TO A MORE WEST OR NORTHWEST
DIRECTION WITH THE FRONT.

.TUESDAY...

SKY/WEATHER.........CHANCE OF SHOWERS IN THE MORNING. SHOWERS
                    LIKELY IN THE AFTERNOON. SLIGHT CHANCE
                    OF THUNDERSTORMS THROUGH THE DAY.
CWR.................40 PERCENT.
MAX TEMPERATURE.....57-62.
MIN HUMIDITY........37-42 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5-10 MPH BECOMING WEST TO NORTHWEST
                    WINDS 10-15 MPH WITH GUSTS UP TO 25 MPH IN THE
                    AFTERNOON.
MIXING HEIGHT.......4400 FT AGL.
MIXING WINDS........WEST 25 MPH.

.TUESDAY NIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
                    IN THE EVENING. CHANCE OF SHOWERS THROUGH THE
                    NIGHT.
CWR.................30 PERCENT.
MIN TEMPERATURE.....38-43.
MAX HUMIDITY........84-89 PERCENT.
WIND (20 FT)........WEST WINDS 11-16 MPH WITH GUSTS TO AROUND 25
                    MPH IN THE EVENING DECREASING TO 5-10 MPH AFTER SUNSET.
MIXING HEIGHT.......800 FT AGL.
MIXING WINDS........WEST 15 MPH.

.WEDNESDAY...

SKY/WEATHER.........MOSTLY CLOUDY BECOMING PARTLY SUNNY. SLIGHT CHANCE
                    OF SHOWERS THROUGH THE DAY. SLIGHT CHANCE OF
                    THUNDERSTORMS IN THE AFTERNOON.
CWR.................10 PERCENT.
MAX TEMPERATURE.....57-62.
MIN HUMIDITY........30-35 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 10-13 MPH.
MIXING HEIGHT.......8300 FT AGL.
MIXING WINDS........WEST 20 MPH.

$$
FORECASTER...VIA
REQUESTED BY...JEFFREY HAYES
TYPE OF REQUEST...PRESCRIBED
.TAG 20090519.PETTY.01/MSO