FNUS75 KMSO 191644
FWSMSO

SPOT FORECAST FOR PETTY ROCK 12
NATIONAL WEATHER SERVICE MISSOULA MT
1044 AM MDT FRI MAR 19 2010

FORECAST IS BASED ON IGNITION TIME OF 1005 MDT ON MARCH 19.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...AN UPPER LEVEL JET IN THE NORTH FLOW ALOFT WILL KEEP
A THREAT OF MAINLY MOUNTAIN SHOWERS NEAR THE UNIT THIS AFTERNOON.
ONLY IMPACT WILL BE SOME BREEZY NORTH WINDS NEAR SHOWERS THAT MAY IMPACT
THE FIRE. BESIDES WINDS FROM NEARBY SHOWERS...WINDS WILL BE
TERRAIN/DIURNALLY DRIVEN THROUGH THE DAY. CLEAR AND CALM
CONDITIONS ARE EXPECTED TONIGHT AND SATURDAY AS THE UPPER RIDGE
BUILDS OVERHEAD. GOOD RECOVERIES EXPECTED TONIGHT...WITH WARMER
CONDITIONS SATURDAY.

.TODAY...

SKY/WEATHER.........SUNNY THIS MORNING BECOMING PARTLY CLOUDY
                    AFTER 1300 MDT.
CWR.................0 PERCENT.
MAX TEMPERATURE.....49-54.
MIN HUMIDITY........25-30 PERCENT.
WIND (20 FT)........VARIABLE 2-4 MPH BECOMING UPSLOPE AROUND 6
                    MPH IN THE AFTERNOON.
MIXING HEIGHT.......8500 FT AGL.
MIXING WINDS........NORTH 5 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
MIN TEMPERATURE.....20-25.
MAX HUMIDITY........79-84 PERCENT.
WIND (20 FT)........DOWNSLOPE 1-3 MPH AFTER SUNSET.
MIXING HEIGHT.......300 FT AGL.
MIXING WINDS........NORTH 5 MPH.

.SATURDAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....56-61.
MIN HUMIDITY........21-26 PERCENT.
WIND (20 FT)........UPSLOPE 2-4 MPH.
MIXING HEIGHT.......6500 FT AGL.
MIXING WINDS........SOUTHWEST 10 MPH.

$$
FORECASTER...MEAD
REQUESTED BY...JEFF HAYES
TYPE OF REQUEST...PRESCRIBED
.TAG 20100319.PETTY.01/MSO