FNUS75 KMSO 231150
FWSMSO

SPOT FORECAST FOR PETTY ROCK 4
NATIONAL WEATHER SERVICE MISSOULA MT
550 AM MDT SAT MAY 23 2009

FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON MAY 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...WARM HIGH PRESSURE WILL CONTINUE OVER THE BURN AREA TODAY
WITH LIGHT WINDS. THE BURN SITE WILL BE ON THE NORTHERN EDGE OF MOISTURE
TODAY AND SUNDAY...WHICH WILL BEING INCREASING CLOUDS AND A SLIGHT
CHANCE OF A SHOWER. SUNDAY WILL BE A LITTLE COOLER WITH MORE CLOUD
COVER AND HIGHER RELATIVE HUMIDITY.

.TODAY...

SKY/WEATHER.........SUNNY IN THE MORNING BECOMING PARTLY CLOUDY.
                    SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS LATE
                    IN THE AFTERNOON.
CWR.................10 PERCENT.
MAX TEMPERATURE.....NEAR 70.
MIN HUMIDITY........21-25 PERCENT.
WIND (20 FT)........UPSLOPE 2-3 MPH AT IGNITION BECOMING DURING THE EARLY
                    AFTERNOON NORTHWEST 3-6 MPH...A FEW GUSTS TO 10
                    MPH MID TO LATE AFTERNOON..
MIXING HEIGHT.......5400 FT AGL.
MIXING WINDS........SOUTHWEST TO WEST 5 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF THUNDERSTORMS
                    IN THE EVENING.
CWR.................10 PERCENT.
MIN TEMPERATURE.....46-51.
MAX HUMIDITY........NEAR 70 PERCENT.
WIND (20 FT)........WEST TO NORTHWEST 4-6 MPH IN THE EVENING BECOMING
                    DOWNSLOPE 2-3 MPH.
MIXING HEIGHT.......600 FT AGL.
MIXING WINDS........LIGHT AND VARIABLE.

.SUNDAY...

SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
                    AFTERNOON THUNDERSTORMS.
CWR.................10 PERCENT.
MAX TEMPERATURE.....NEAR 65.
MIN HUMIDITY........25-29 PERCENT.
WIND (20 FT)........UPSLOPE/UPVALLEY IN THE MORNING BECOMING AROUND
                    1300 HOURS NORTHWEST 5-10 MPH.
MIXING HEIGHT.......6400 FT AGL.
MIXING WINDS........WEST 5-8 MPH.

$$
FORECASTER...GIBSON
REQUESTED BY...JEFFREY HAYES
TYPE OF REQUEST...PRESCRIBED
.TAG 20090523.PETTY.01/MSO