FNUS75 KBOI 261649
FWSBOI

SPOT FORECAST FOR LITTLE BEAVER FIRE...USFS
NATIONAL WEATHER SERVICE BOISE ID
1049 AM MDT THU AUG 26 2010

FORECAST IS BASED ON REQUEST TIME OF 1018 MDT ON AUGUST 26.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

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...RED FLAG WARNING IN EFFECT UNTIL 3 AM MDT FRIDAY...
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...CRITICAL FIRE WEATHER CONDITIONS TODAY AND THIS EVENING...
...MUCH COOLER...BREEZY AND WETTER OVER THE WEEKEND...

.DISCUSSION...
A CRITICAL FIRE WEATHER DAY IS ANTICIPATED TODAY WITH SEVERAL PARAMETERS
COMING TOGETHER...ESPECIALLY FOR THIS EVENING. A HOT DRY AIR MASS WILL BE
OVER THE FIRE TODAY ALONG THE THERMAL AXIS. THEN TONIGHT...A STRONG COLD
FRONT WILL COME SWEEPING IN FROM THE WEST WITH A BIG CHANGE IN AIR MASS.
STRONG AND GUSTY WINDS ARE EXPECTED WITH THE FRONTAL PASSAGE ITSELF BUT
ALSO THERE IS A POSSIBILITY OF GUSTY...ERRATIC AND EVEN DAMAGING OUTFLOW
WINDS WITH ANY CONVECTION THAT BREAKS OUT TODAY AHEAD OF THE FRONT. A CLOSE
MONITORING OF WEATHER CONDITIONS IS NEEDED TODAY IN THIS CRITICAL RED FLAG
SITUATION.

.TODAY...

SKY/WEATHER.........PARTLY SUNNY. SCATTERED THUNDERSTORMS AND A SLIGHT CHANCE
                    OF RAIN SHOWERS IN THE AFTERNOON.
MAX TEMPERATURE.....78 TO 89.
MIN HUMIDITY........13 TO 18 PERCENT.
WIND - EYE LEVEL....SOUTH 12 TO 18 MPH. GUSTY AND ERRATIC OUTFLOW WINDS
                    40 TO 50 MPH NEAR ANY THUNDERSTORMS
HAINES INDEX........6 HIGH.
LAL.................3 THIS AFTERNOON.
MIXING HEIGHT.......12000 FT AGL.
TRANSPORT WIND......SOUTHWEST AROUND 35 MPH.
VENTILATION INDEX...4200 EXCELLENT.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY...THEN BECOMING PARTLY CLOUDY AFTER MIDNIGHT.
                    SCATTERED THUNDERSTORMS AND A SLIGHT CHANCE OF
                    SHOWERS IN THE EVENING.
MIN TEMPERATURE.....39 TO 47.
MAX HUMIDITY........55 TO 73 PERCENT.
WIND - EYE LEVEL....WEST 10 TO 16 MPH IN THE EVENING...SHIFTING TO
                    THE NORTHEAST AROUND 6 MPH AFTER MIDNIGHT. GUSTY AND
                    ERRATIC WINDS 40 TO 50 MPH NEAR ANY THUNDERSTORMS.
HAINES INDEX........5 MODERATE.
LAL.................3 THIS EVENING...THEN 1 AFTER MIDNIGHT.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WIND......WEST AROUND 15 MPH.
VENTILATION INDEX...75 POOR.

.FRIDAY...

SKY/WEATHER.........MOSTLY SUNNY. MUCH COOLER AND BREEZY.
MAX TEMPERATURE.....56 TO 66.
MIN HUMIDITY........21 TO 26 PERCENT.
WIND - EYE LEVEL....SOUTHWEST AROUND 9 MPH.
HAINES INDEX........4 LOW.
LAL.................1
MIXING HEIGHT.......5000 FT AGL.
TRANSPORT WIND......SOUTHWEST AROUND 15 MPH.
VENTILATION INDEX...750 EXCELLENT.

$$
FORECASTER...SKARI
REQUESTED BY...TIM BRADLEY
TYPE OF REQUEST...WILDFIRE
.TAG 20100826.LITTL.01/BOI