FNUS75 KBOI 041619
FWSBOI

SPOT FORECAST FOR SUMMIT RX...PAYETTE NF
NATIONAL WEATHER SERVICE BOISE ID
1019 AM MDT SAT SEP 4 2010

FORECAST IS BASED ON IGNITION TIME OF 1015 MDT ON SEPTEMBER 04.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...THUNDERSTORMS POSSIBLE TODAY...
...MUCH COOLER SUNDAY AND MONDAY...

.DISCUSSION...
ANOTHER COLD FRONT IS EXPECTED TO PUSH THROUGH THE BURN AREA JUST AFTER
NOON. AS IT DOES THERE IS SUFFICIENT MOISTURE AND INSTABILITY TO BRING
WIDELY SCATTERED THUNDERSTORMS TO THE BURN AREA TODAY. WINDS WILL SHIFT
FROM AN UP DRAINAGE FLOW TO A WEST TO NORTHWEST FLOW THIS AFTERNOON.
THE UPPER LOW WILL DROP INTO THE REGION ON SUNDAY BRINGING TEMPERATURES
DOWN SOME 10 TO 15 DEGREES FROM TO DAYS HIGH TEMPERATURES. WINDS ARE EXPECTED
TO REMAIN STRONG FROM THE NORTHWEST SUNDAY AND INTO MONDAY.


.TODAY...

SKY/WEATHER.........INCREASING CLOUDS. WIDELY SCATTERED SHOWERS AND
                    THUNDERSTORMS BY THIS AFTERNOON.
MAX TEMPERATURE.....70 TO 80.
MIN HUMIDITY........23 TO 30 PERCENT.
WIND - EYE LEVEL....UP DRAINGE FLOW 2 TO 5 MPH THIS MORNING BECOMING
                    WEST TO NORTHWEST 5 TO 8 MPH WITH GUSTS TO 15 MPH THIS AFTERNOON.
HAINES INDEX........3 VERY LOW.
MIXING HEIGHT.......8500 FT AGL.
TRANSPORT WIND......WEST AROUND 15 MPH.
VENTILATION INDEX...1275 EXCELLENT.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY...THEN BECOMING MOSTLY CLOUDY.
                    WIDELY SCATTERED SHOWERS AND THUNDERSTORMS THIS EVENING.
MIN TEMPERATURE.....AROUND 45.
MAX HUMIDITY........OVER 70 PERCENT.
WIND - EYE LEVEL....NORTHWEST AROUND 5 TO 8 MPH WITH GUSTS TO 15 MPH IN THE EVENING.
HAINES INDEX........3 VERY LOW.
MIXING HEIGHT.......900 FT AGL.
TRANSPORT WIND......NORTHWEST AROUND 10 MPH.
VENTILATION INDEX...90 POOR.

.SUNDAY...

SKY/WEATHER.........PARTLY SUNNY. A CHANCE OF RAIN SHOWERS IN THE
                    AFTERNOON.
MAX TEMPERATURE.....58 TO 63.
MIN HUMIDITY........26 TO 35 PERCENT.
WIND - EYE LEVEL....NORTHWEST 8 TO 12 MPH WITH GUSTS TO 20 MPH.
HAINES INDEX........3 VERY LOW.
MIXING HEIGHT.......7000 FT AGL.
TRANSPORT WIND......NORTH 15 TO 20 MPH.
VENTILATION INDEX...1050 EXCELLENT.

$$
FORECASTER...REDMAN
REQUESTED BY...SARAH HUMBACH
TYPE OF REQUEST...PRESCRIBED
.TAG 20100904.SUMMI.01/BOI