FNUS75 KMSO 211715
FWSMSO

SPOT FORECAST FOR BILLY HELO  21 B-H
NATIONAL WEATHER SERVICE MISSOULA MT
1115 AM MDT TUE APR 21 2009

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

.DISCUSSION...A RIDGE OF HIGH PRESSURE WILL CONTINUE TO DOMINATE YOUR
WEATHER TODAY. WESTERLY WINDS ALOFT WILL LIKELY MIX TO THE SURFACE
LATER THIS AFTERNOON AS THE ATMOSPHERE DESTABILIZES.

THE RIDGE WILL BE BREAKING DOWN TONIGHT AND WEDNESDAY. CLOUDS WILL BE
INCREASING WEDNESDAY WITH SLIGHTLY COOLER TEMPERATURES WITH STRONGER
WINDS DURING THE AFTERNOON.

.TODAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....76 BOTTOM TO 68 TOP.
MIN HUMIDITY........19 PERCENT BOTTOM AND 24 PERCENT TOP.
WIND (20 FT)........VARIABLE TO 5 MPH...BECOMING SOUTHWEST 7-11 MPH
                    IN THE AFTERNOON.  GUSTS TO 25 MPH BETWEEN 2 PM
                    AND 7 PM.
MIXING HEIGHT.......5000 FT AGL.
MIXING WINDS........WEST 20 MPH.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0 PERCENT.
MIN TEMPERATURE.....39-44.
MAX HUMIDITY........62-67 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 6-11 MPH WITH GUSTS TO 25 MPH DURING
                    THE EARLY EVENING. WIND DECREASING TO 3 TO 8 MPH
                    OVERNIGHT.
MIXING HEIGHT.......DECREASUG TO LESS THAN 1000 FT AGL AROUND SUNSET.
MIXING WINDS........SOUTHWEST 9 MPH.

.WEDNESDAY...

SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS IN
                    THE AFTERNOON.
CWR.................10 PERCENT.
MAX TEMPERATURE.....62-69.
MIN HUMIDITY........25-30 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS INCREASING TO 9-16 MPH. GUSTS
                    UP TO 30 MPH IN THE AFTERNOON.
MIXING HEIGHT.......INCREASING TO ABOVE 5000 FT AGL.
MIXING WINDS........INCREASING TO WEST 35 MPH.

$$
FORECASTER...BAUCK
REQUESTED BY...NED WINEBRENNER
TYPE OF REQUEST...PRESCRIBED
.TAG 20090421.BILLY.01/MSO