FNUS75 KBOI 081705
FWSBOI

SPOT FORECAST FOR RIDGE...BOISE NF
NATIONAL WEATHER SERVICE BOISE ID
1105 AM MDT THU AUG 8 2013

FORECAST IS BASED ON REQUEST TIME OF 1050 PDT ON AUGUST 08.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...RED FLAG WARNING TODAY AND TONIGHT FOR SCATTERED LIGHTNING...

.DISCUSSION....SCATTERED SHOWERS AND THUNDERSTORMS ARE DEVELOPING ON
THE BOISE NATIONAL FOREST ALREADY TODAY AND WILL CONTINUE TO STRENGTHEN
AND INCREASE IN COVERAGE THROUGH TONIGHT. THIS IS BECAUSE OF A LOW
PRESSURE SYSTEM OVER NORTHERN CALIFORNIA THAT IS PROVIDING MID LEVEL
MOISTURE AND INSTABILITY OVER THE AREA. UP TO A TENTH OF AN INCH OF RAIN
IS EXPECTED WITH STORMS THROUGH TONIGHT BUT WIDESPREAD WETTING RAIN IS
NOT FAVORED. GUSTY AND ERRATIC WINDS ASSOCIATED WITH THUNDERSTORMS WILL
BRING OUTFLOW GUSTS OF 35 TO 40 MPH LATER THIS EVENING. OTHERWISE EXPECT
UPSLOPE SOUTH WINDS THROUGH EARLY AFTERNOON...BECOMING UP VALLEY WEST
TO NORTHWEST AFTER 1500 HOURS. RIDGETOP LEVEL WINDS WILL BE FROM THE
SOUTH THIS MORNING...BECOMING SOUTHWESTERLY THIS AFTERNOON.

.REST OF TODAY...

SKY/WEATHER.........PARTLY SUNNY. ISOLATED SHOWERS AND
                    THUNDERSTORMS LATE IN THE MORNING...THEN
                    SCATTERED SHOWERS AND THUNDERSTORMS IN THE
                    AFTERNOON. CHANCE OF PRECIPITATION 40 PERCENT.
MAX TEMPERATURE.....73 TO 76.
MIN HUMIDITY........AROUND 20 PERCENT.
WIND - EYE LEVEL....UPSLOPE SOUTH BECOMING UPVALLEY WEST TO NORTHWEST
                    AFTER 1500 HOURS 4 TO 6 MPH WITH GUSTS TO 15 MPH.
HAINES INDEX........4 LOW.
MIXING HEIGHT.......12000 FT AGL.
TRANSPORT WIND......SOUTHWEST 5 TO 15 MPH.
VENTILATION INDEX...600 GOOD.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND
                    THUNDERSTORMS IN THE EVENING...THEN PARTLY
                    CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
                    THUNDERSTORMS AFTER MIDNIGHT. CHANCE OF
                    PRECIPITATION 30 PERCENT.
MIN TEMPERATURE.....54 TO 59.
MAX HUMIDITY........45 TO 58 PERCENT.
WIND - EYE LEVEL....BECOMING DOWN VALLEY EAST 8 TO 14 MPH WITH GUSTS TO 18 MPH.
HAINES INDEX........5 MODERATE.
MIXING HEIGHT.......600 FT AGL.
TRANSPORT WIND......EAST AROUND 10 MPH.
VENTILATION INDEX...60 POOR.

.FRIDAY...

SKY/WEATHER.........MOSTLY SUNNY WITH A 20 PERCENT CHANCE OF
                    SHOWERS AND THUNDERSTORMS.
MAX TEMPERATURE.....71 TO 79.
MIN HUMIDITY........15 TO 20 PERCENT.
WIND - EYE LEVEL....SOUTH 7 TO 13 MPH WITH GUSTS TO 20 MPH.
HAINES INDEX........4 LOW.
MIXING HEIGHT.......12000 FT AGL.
TRANSPORT WIND......SOUTH AROUND 15 MPH.
VENTILATION INDEX...1800 EXCELLENT.

$$
FORECASTER...DECKER
REQUESTED BY...IC
TYPE OF REQUEST...WILDFIRE
.TAG 20130808.RIDGE.01/BOI