FNUS75 KMSO 201501
FWSMSO

SPOT FORECAST FOR PRINTERS 7
NATIONAL WEATHER SERVICE MISSOULA MT
901 AM MDT FRI MAY 20 2011

FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON MAY 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...LOW PRESSURE SYSTEM CIRCULATING ALONG THE
MONTANA-WYOMING BORDER WILL PROVIDE MOISTURE AND ENERGY ACROSS THE
REGION CONTINUING TO INCREASE CLOUD COVER AND SHOWER ACTIVITY OVER THE
BURN SITE TODAY. THICKER CLOUDS AND VERY LIGHT SHOWERS ARE ALREADY
BEING OBSERVED ON THE RADAR...BUT THESE SHOWERS HAVE YET TO DROP ANY
MEASURABLE PRECIPITATION THIS MORNING. WHILE AN INCREASE IN SHOWER
ACTIVITY IS EXPECTED...CHANCE OF WETTING RAINS STILL REMAIN LOW.
MODERATELY INCREASING MID LEVEL MOISTURE SHOULD SUPPORT HUMIDITY
READINGS A FEW DEGREES MORE MOIST THAN FIELD READINGS FROM THURSDAY.

.TODAY...

SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS IN
                    THE MORNING...THEN CHANCE OF RAIN SHOWERS IN
                    THE AFTERNOON.
CWR.................10 PERCENT IN THE MORNING...INCREASING T0 30
                    PERCENT IN THE AFTERNOON.
MAX TEMPERATURE.....55-60 TOP...63-68 BOTTOM.
MIN HUMIDITY........36-41 PERCENT TOP...30-35 PERCENT BOTTOM.
WIND (20 FT)........VARIABLE 2-5 MPH BECOMING NORTH AROUND 6 MPH IN
                    THE AFTERNOON. CANYON CHANNELING SHOULD
                    SHOULD HOLD OFF ANY STRONG EASTERLY INFLUENCE
                    FOR SURFACE WINDS.
MIXING HEIGHT.......4500 FT AGL.
MIXING WINDS........NORTHEAST 8 MPH.

.TONIGHT...

SKY/WEATHER.........LIGHT RAIN SHOWERS LIKELY IN THE EVENING...THEN
                    CHANCE OF RAIN SHOWERS AFTER MIDNIGHT.
CWR.................30 PERCENT.
MIN TEMPERATURE.....37-42 TOP...40-45 BOTTOM.
MAX HUMIDITY........85-90 PERCENT TOP...75-80 PERCENT BOTTOM.
WIND (20 FT)........DOWNSLOPE/NORTH WINDS 5-6 MPH BECOMING EAST
                    AROUND 5 MPH AFTER MIDNIGHT.
MIXING HEIGHT.......800 FT AGL.
MIXING WINDS........NORTHEAST 5 MPH.

.SATURDAY...

SKY/WEATHER.........CHANCE OF RAIN SHOWERS IN THE MORNING...THEN
                    RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF
                    THUNDERSTORMS IN THE AFTERNOON.
CWR.................40 PERCENT.
MAX TEMPERATURE.....58-63 TOP...65-70 BOTTOM.
MIN HUMIDITY........33-38 PERCENT TOP...26-31 PERCENT BOTTOM.
WIND (20 FT)........VARIABLE 2-4 MPH BECOMING NORTH AROUND 5 MPH IN
                    THE AFTERNOON.
MIXING HEIGHT.......5000 FT AGL.
MIXING WINDS........NORTH 5 MPH.

$$
FORECASTER...NOLTE/ZUMPFE
REQUESTED BY...TYLER BROTHERS
TYPE OF REQUEST...PRESCRIBED
.TAG 20110520.PRINT.01/MSO