FNUS75 KMSO 311631
FWSMSO

SPOT FORECAST FOR LYONS UNIT 1
NATIONAL WEATHER SERVICE MISSOULA MT
1031 AM MDT WED OCT 31 2012

FORECAST IS BASED ON IGNITION TIME OF 1030 MDT ON OCTOBER 31.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...A RIDGE OF HIGH PRESSURE RESIDES OVER SOUTHWEST
MONTANA TODAY. THE AIR MASS IS RELATIVELY DRY WITH THE EXCEPTION
OF LOTS OF MIDDLE AND HIGH LEVEL CLOUDS MOVING THROUGH THIS RIDGE.
TEMPERATURES WILL BE QUITE MILD TODAY...EVEN AT ELEVATION...BUT
CLOUDS WILL TEMPER WARMING/MIXING SOMEWHAT. SOUTHERLY WINDS WILL
LIKELY BE INCREASING OVER THE BURN SITE THIS AFTERNOON.

A WEATHER SYSTEM WILL BE MOVING THROUGH THE AREA THURSDAY
INCREASING THE CHANCE OF RAINFALL...BUT AMOUNTS ARE STILL
EXPECTED TO BE QUITE LIGHT (LESS THAN 0.10 INCHES).

.TODAY...

SKY/WEATHER.........LOTS OF HIGHER CLOUDS WITH SOME BREAKS DURING
                    THE AFTERNOON.
CWR.................0 PERCENT.
TEMPERATURE.........MAX 58-60.
RH..................MIN 28-32 PERCENT.
WIND (20 FT)........SOUTH 7-10 MPH WITH GUSTS TO 14 MPH AT IGNITION.
                    THEN INCREASING 10-16 MPH WITH GUSTS TO 25 MPH
                    THIS AFTERNOON.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0 PERCENT.
TEMPERATURE.........MIN 32-36.
RH..................MAX 65-70 PERCENT.
WIND (20 FT)........SOUTH WINDS 6-10 MPH...DECREASING TO VARIABLE 2-4
                    MPH BY MIDNIGHT.

.THURSDAY...

SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
                    SLIGHT CHANCE OF THUNDERSTORMS IN THE
                    AFTERNOON.
CWR.................10 PERCENT.
TEMPERATURE.........MAX 52-54.
RH..................MIN 36-40 PERCENT.
WIND (20 FT)........SOUTH WINDS 4-8 MPH BY LATE MORNING...THEN
                    INCREASING  TO 8-15 MPH WITH HIGHER GUSTS
                    IN THE AFTERNOON.

$$
FORECASTER...MSJ
REQUESTED BY...DILLON DISPATCH
TYPE OF REQUEST...PRESCRIBED
.TAG 20121031.LYONS.01/MSO