FNUS75 KMSO 021442
FWSMSO

SPOT FORECAST FOR PRISONER LAKE FIRE
NATIONAL WEATHER SERVICE MISSOULA MT
842 AM MDT THU AUG 2 2012

FORECAST IS BASED ON REQUEST TIME OF 0804 MDT ON AUGUST 02.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...WINDY AFTERNOON AND EVENING WITH FRONTAL PASSAGE...

.DISCUSSION...FRONT STILL ON TRACK TO IMPACT THE FIRE LATE THIS
AFTERNOON AND EVENING. AHEAD OF THE FRONT, WINDS WILL INCREASE
FROM THE WEST AND FIRE WILL BE EXPOSED TO THESE STRONGER WINDS
GIVEN THE ASPECT AND ELEVATION. THE TOP OF THE FIRE IS LIKELY
EXPERIENCING STRONG WEST WINDS SUSTAINED AROUND 18 MPH THIS
MORNING...AND THE BOTTOM OF THE FIRE WILL SEE THE WINDS MIX DOWN
AROUND NOON. CLOUDS WILL INCREASE IN COVERAGE AND THICKNESS FROM
THE NORTH BY LATE MORNING THROUGH THE AFTERNOON WHICH SHOULD HELP
WITH HIGHER HUMIDITIES AND MAY HELP OFFSET THE WINDS SOME. AHEAD
OF THE FRONT SOME ISOLATED SHOWERS AND THUNDERSTORMS ARE POSSIBLE
NEAR THE FIRE STARTING AROUND 1800 MDT. THE FRONT WILL PASS OVER
THE FIRE AROUND 2100 MDT TURNING THE WINDS MORE NORTHERLY THAT
WILL CONTINUE THROUGH THE NIGHT AND FRIDAY. OVERNIGHT AND MORNING
SHOWERS ALONG WITH A COOLER AIRMASS WILL ALLOW FOR BETTER
HUMIDITIES FRIDAY.

.TODAY...

SKY/WEATHER.........BECOMING MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS
                    AND THUNDERSTORMS IN THE LATE AFTERNOON.
CWR.................LESS THAN 10 PERCENT.
MAX TEMPERATURE.....64-69 BOTTOM...58-63 TOP.
MIN HUMIDITY........26-31 PERCENT.
WIND (20 FT)........WEST WINDS 10-17 MPH...SUSTAINED NEAR 20 MPH AT THE
                    TOP OF THE FIRE. GUSTS UP TO 35 MPH IN THE AFTERNOON.
MIXING HEIGHT.......6500 FT AGL.
MIXING WINDS........WEST 30 MPH.
HAINES INDEX........2 VERY LOW.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
                    THUNDERSTORMS.
CWR.................30 PERCENT.
MIN TEMPERATURE.....36-41.
MAX HUMIDITY........95-100 PERCENT.
WIND (20 FT)........NORTH WINDS 10-15 MPH. GUSTS UP TO 30 MPH IN
                    THE EVENING.
MIXING HEIGHT.......3900 FT AGL.
MIXING WINDS........NORTH 20 MPH.
HAINES INDEX........3 VERY LOW.

.FRIDAY...

SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS MAINLY IN
                    THE MORNING. SLIGHT CHANCE OF THUNDERSTORMS THROUGH
                    THE DAY.
CWR.................10 PERCENT.
MAX TEMPERATURE.....56-61.
MIN HUMIDITY........35-40 PERCENT.
WIND (20 FT)........NORTH TO NORTHEAST WINDS 5-9 MPH. GUSTS UP TO 20
                    MPH IN THE AFTERNOON.
MIXING HEIGHT.......5300 FT AGL.
MIXING WINDS........NORTH 15 MPH.
HAINES INDEX........2 VERY LOW.

$$
FORECASTER...MEAD
REQUESTED BY...SETH CARBONARI
TYPE OF REQUEST...WILDFIRE
.TAG 20120802.PRISO.01/MSO