FNUS75 KBOI 221508
FWSBOI

SPOT FORECAST FOR IRON MOUNTAIN TWB...SAWTOOTH NATIONAL FOREST
NATIONAL WEATHER SERVICE BOISE ID
908 AM MDT WED MAY 22 2013

FORECAST IS BASED ON REQUEST TIME OF 0827 MDT ON MAY 22.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...TEST TEST TEST...

...COOLER WITH GUSTY WEST WINDS TOMORROW...

.DISCUSSION...
COLD FRONT MOVING THROUGH THE AREA WILL BRING DRAMATIC COOLING OVERNIGHT
AND INTO TOMORROW...WITH AFTERNOON TEMPERATURES 20 DEGREES COOLER ON
THURSDAY. UNLIKELY TO SEE ANY SIGNIFICANT PRECIPITATION WITH THE FRONT...
ALTHOUGH A SPRINKLE OR TWO CANNOT BE RULED OUT. WINDS ALREADY FROM THE WEST
THIS AFTERNOON WITH GUSTS TO 25 MPH...AND WILL LIKELY CONTINUE FROM THE WEST
BUT DIMINISH TO ABOUT 10 TO 15 MPH OVERNIGHT. THE USUAL DOWNSLOPE FLOW FROM
THE SOUTH WILL PROBABLY NOT DEVELOP ON THESE SLOPES OVERNIGHT.

ON THURSDAY...THE WEST WINDS WILL TURN MORE FROM THE NORTHWEST WITH GUSTS
UP TO 30 MPH POSSIBLE DURING THE AFTERNOON...THEN DROP OFF DRAMATICALLY
AFTER SUNSET TO LESS THAN 8 MPH...AND BECOMING DOWNSLOPE AFTER 2300
LOCAL TIME.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY EARLY...WITH A FEW SPRINKLES POSSIBLE.
                    THEN CLEARING BY MIDNIGHT.
MIN TEMPERATURE.....25 TO 31.
MAX HUMIDITY........72 TO 94 PERCENT.
WIND - EYE LEVEL....WEST 10 TO 15 MPH. GUSTS UP TO 25 MPH IN THE EARLY
                    EVENING.
HAINES INDEX........4 LOW.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WIND......WEST AROUND 20 MPH.
VENTILATION INDEX...50 POOR.

.THURSDAY...

SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....66 TO 70.
MIN HUMIDITY........24 TO 30 PERCENT.
WIND - EYE LEVEL....WEST 10 MPH IN THE MORNING...BECOMING NORTHWEST 15
                    TO 20 IN THE AFTERNOON...WITH GUSTS TO 30 MPH POSSIBLE
                    ON THE RIDGETOPS.
HAINES INDEX........4 LOW.
MIXING HEIGHT.......10500 FT AGL.
TRANSPORT WIND......NORTHWEST AROUND 25 MPH.
VENTILATION INDEX...1575 EXCELLENT.

.THURSDAY NIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....25 TO 31.
MAX HUMIDITY........72 TO 94 PERCENT.
WIND - EYE LEVEL....WEST 5 TO 10 MPH IN THE EVENING...BECOMING DOWNSLOPE
                    4 TO 6 MPH BY MIDNIGHT.
HAINES INDEX........4 LOW.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WIND......WEST AROUND 15 MPH.
VENTILATION INDEX...150 MODERATE.

$$
FORECASTER...BARKER
REQUESTED BY...TWB
TYPE OF REQUEST...WILDFIRE
.TAG 20130522.IRONM.01/BOI