FNUS75 KMSO 202058
FWSMSO

SPOT FORECAST FOR TUJO HELO
NATIONAL WEATHER SERVICE MISSOULA MT
258 PM MDT FRI MAY 20 2011

FORECAST IS BASED ON IGNITION TIME OF 1200 MDT ON MAY 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

A STORM SYSTEM OVER SOUTHERN MONTANA WILL BRING SHOWERS OVER THE
BURN AREA DURING MONDAY AND TUESDAY. SHOWER ACTIVITY WILL BE MOST
PRONOUNCED DURING THE AFTERNOON HOURS SATURDAY AND SUNDAY...HOWEVER
THE CHANCE OF WETTING RAIN REMAINS RELATIVELY LOW DURING THIS TIME.
THE HIGH AMOUNT OF MOISTURE IN THE AIR WILL KEEP AFTERNOON RH
RELATIVELY HIGH DURING THIS TIME AS WELL.

.SATURDAY...

SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS IN
                    THE MORNING...THEN CHANCE OF RAIN SHOWERS AND
                    SLIGHT CHANCE OF THUNDERSTORMS IN THE
                    AFTERNOON.
CWR.................0 PERCENT INCREASING TO 30 PERCENT IN THE
                    AFTERNOON.
TEMPERATURE.........58 AT IGNITION...MAX 64.
RH..................50 PERCENT AT IGNITION...MIN 41 PERCENT.
WIND (20 FT)........WINDS SOUTHWEST AT 4 MPH AT
                    IGNITION...OTHERWISE VARIABLE 1-3 MPH.
MIXING HEIGHT.......4000 FT AGL AT IGNITION...OTHERWISE 7100 FT
                    AGL.
MIXING WINDS........EAST 5 MPH.

.SATURDAY NIGHT...

SKY/WEATHER.........RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF
                    THUNDERSTORMS IN THE EVENING...THEN CHANCE OF
                    RAIN SHOWERS AFTER MIDNIGHT.
CWR.................30 PERCENT DECREASING TO 20 PERCENT AFTER
                    MIDNIGHT.
TEMPERATURE.........MIN 41.
RH..................MAX 86 PERCENT.
WIND (20 FT)........WEST WINDS 5-6 MPH IN THE EVENING BECOMING
                    VARIABLE 2-5 MPH...THEN BECOMING WEST AROUND 5
                    MPH EARLY IN THE MORNING.
MIXING HEIGHT.......400 FT AGL.
MIXING WINDS........NORTHWEST 5 MPH.

.SUNDAY...

SKY/WEATHER.........CHANCE OF RAIN SHOWERS IN THE MORNING...THEN
                    RAIN SHOWERS LIKELY IN THE AFTERNOON.
CWR.................20 PERCENT INCREASING TO 30 PERCENT IN THE
                    AFTERNOON.
TEMPERATURE.........MAX 61.
RH..................MIN 57 PERCENT.
WIND (20 FT)........VARIABLE 2-5 MPH BECOMING WEST AROUND 6 MPH IN
                    THE AFTERNOON.
MIXING HEIGHT.......3700 FT AGL.
MIXING WINDS........SOUTHWEST 5 MPH.

$$
FORECASTER...ZUMPFE
REQUESTED BY...BOB DERLETH
TYPE OF REQUEST...PRESCRIBED
.TAG 20110521.TUJOH.01/MSO