FNUS75 KMSO 231437
FWSMSO

SPOT FORECAST FOR STEVENSON
NATIONAL WEATHER SERVICE MISSOULA MT
837 AM MDT TUE JUL 23 2013

FORECAST IS BASED ON REQUEST TIME OF 0808 MDT ON JULY 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...A VERY DRY AIR MASS WILL REMAIN OVER THE FIRE THROUGH
WEDNESDAY.  THIS WILL TRANSLATE INTO UNUSUALLY LOW RH VALUES IN THE
AFTERNOONS AND POOR NIGHT TIME RECOVERIES.  RELATIVELY LIGHT WIND
ALOFT MEANS THE WINDS ON THIS UNIT SHOULD BE FAIRLY LIGHT AS WELL,
ESPECIALLY COMPARED TO MONDAY AFTERNOON. HOWEVER, THE ATMOSPHERE WILL
ALSO BECOME UNSTABLE IN THE AFTERNOON AND CAN SUPPORT DEEP FIRE PLUMES.
IF A SIGNIFICANT PLUME DOES DEVELOP, THE FIRE WILL CREATE STRONGER
IN DRAFT WINDS THAN FORECAST.  HIGH LEVEL MOISTURE WILL BEGIN
SHIFTING OVER THIS FIRE LATE WEDNESDAY INTO THURSDAY.

.TODAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....79-82.
MIN HUMIDITY........12 PERCENT.
WIND (20 FT)........VARIABLE 1-5 MPH BECOMING WEST 5-8 MPH IN THE
                    AFTERNOON.
MIXING HEIGHT.......10000 FT AGL.
MIXING WINDS........WEST 5-10 MPH.
HAINES INDEX........5 MODERATE.

.TONIGHT...

SKY/WEATHER.........CLEAR.
CWR.................0 PERCENT.
MIN TEMPERATURE.....55-60.
MAX HUMIDITY........32-38 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5-8 MPH IN THE EVENING BECOMING
                    VARIABLE 2-5 MPH.
MIXING HEIGHT.......DECREASING TO 200 FT AGL AFTER DARK.
MIXING WINDS........NORTHWEST 5 MPH.
HAINES INDEX........5 MODERATE.

.WEDNESDAY...

SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING MOSTLY CLOUDY LATE.
CWR.................0 PERCENT.
MAX TEMPERATURE.....78-81.
MIN HUMIDITY........14-16 PERCENT.
WIND (20 FT)........VARIABLE 2-4 MPH BECOMING WEST AROUND 5 MPH IN
                    THE AFTERNOON.
MIXING HEIGHT.......8000 FT AGL.
MIXING WINDS........WEST 5-10 MPH.
HAINES INDEX........5 MODERATE.

$$
FORECASTER...BAUCK
REQUESTED BY...IC P DIAZ
TYPE OF REQUEST...WILDFIRE
.TAG 20130723.STEVE.01/MSO