Suppression Forecast
Issued by NWS Boise, ID

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000
FNUS75 KBOI 282314
FWSBOI

SPOT FORECAST FOR COUGAR...BOISE NF
NATIONAL WEATHER SERVICE BOISE ID
514 PM MDT FRI AUG 28 2015

FORECAST IS BASED ON REQUEST TIME OF 1556 MDT ON AUGUST 28.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...STRONG AND GUSTY WINDS WITH A COLD FRONTAL PASSAGE SATURDAY...

.DISCUSSION...
AN ELONGATED UPPER TROUGH OFF THE COAST WILL PUSH A COLD FRONT
THROUGH THE FIRE AREA BETWEEN 3 PM AND 6 PM SATURDAY. OUT AHEAD OF IT
STRONG WINDS ALOFT WILL FILTER TO THE SURFACE BRINGING GUSTY WINDS
TONIGHT INTO SATURDAY AFTERNOON. COOLER CONDITIONS EXPECTED
SATURDAY EVENING AFTER THE FRONT MOVES THROUGH BUT WINDS WILL BE
STRONGER COMPARED TO TODAY. THERE IS A SLIGHT RISK OF SHOWERS AND
THUNDERSTORMS AS THE FRONT PUSHES THROUGH THE AREA WITH
INSTABILITY AHEAD OF THE FRONT BEGINNING AS EARLY AS TONIGHT.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED SHOWERS AFTER MIDNIGHT.
                    CHANCE OF SHOWERS 20 PERCENT.
MIN TEMPERATURE.....49 TO 54.
MAX HUMIDITY........65 TO 70 PERCENT.
WIND - EYE LEVEL....LESS THAN 3 MPH.
HAINES INDEX........4 LOW.
MIXING HEIGHT.......200 FT AGL.
TRANSPORT WIND......SOUTHEAST AROUND 10 MPH.
VENTILATION INDEX...20 POOR.

.SATURDAY...

SKY/WEATHER.........PARTLY SUNNY. A SLIGHT CHANCE OF SHOWERS IN THE
                    MORNING...THEN A CHANCE OF SHOWERS AND A SLIGHT
                    CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
                    THUNDERSTORMS MAY PRODUCE GUSTY WINDS IN THE
                    AFTERNOON. CHANCE OF PRECIPITATION 30 PERCENT.
MAX TEMPERATURE.....73 TO 78.
MIN HUMIDITY........24 TO 29 PERCENT.
WIND - EYE LEVEL....VALLEYS SOUTHWEST 6 TO 9 MPH. RIDGETOP WINDS SOUTHWEST
                    10 TO 14 MPH WITH GUSTS TO 30 MPH BY THE AFTERNOON
                    ESPECIALLY IN EXPOSED LOCATIONS.
HAINES INDEX........3 VERY LOW.
MIXING HEIGHT.......9500 FT AGL.
TRANSPORT WIND......SOUTHWEST AROUND 40 MPH.
VENTILATION INDEX...3800 EXCELLENT.

.SATURDAY NIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
                    THUNDERSTORMS IN THE EVENING. SLIGHT CHANCE OF SHOWERS
                    AFTER MIDNIGHT. CHANCE OF PRECIPITATION 30 PERCENT.
MIN TEMPERATURE.....40 TO 45.
MAX HUMIDITY........75 TO 85 PERCENT.
WIND - EYE LEVEL....SOUTHWEST 5 TO 8 MPH IN THE EVENING...BECOMING DOWNSLOPE
                    LESS THAN 3 MPH OVERNIGHT.
HAINES INDEX........3 VERY LOW.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WIND......SOUTHWEST AROUND 10 MPH.
VENTILATION INDEX...50 POOR.

$$

FORECASTER...BRAUN/PARKER
REQUESTED BY...MARK INGRAM
TYPE OF REQUEST...WILDFIRE
.TAG 20150828.COUGA.01/BOI



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