FNUS75 KBOI 222247
FWSBOI

SPOT FORECAST FOR CRAWFORD HF...BOISE NF
NATIONAL WEATHER SERVICE BOISE ID
447 PM MDT FRI MAY 22 2009

FORECAST IS BASED ON IGNITION TIME OF 0900 MDT ON MAY 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...WIDELY SCATTERED THUNDERSTORMS SATURDAY AND SUNDAY...

...DRIER CONDITIONS LIKELY ON MONDAY...

.DISCUSSION...
MID LEVEL MOISTURE AND AFTERNOON INSTABILITY WILL SUPPORT WIDELY
SCATTERED THUNDERSTORMS OVER THE CASCADE REGION SATURDAY AFTERNOON.
CUMULUS BUILD-UPS AND THUNDERSTORMS WILL PRODUCE GUSTY AND ERRATIC
WINDS. CHANCE OF SHOWERS AND THUNDERSTORMS CONTINUES THROUGH SUNDAY
WITH LESS THREAT FOR GUSTY WINDS. CONDITIONS WILL LIKELY BE DRY ON
MONDAY WITH A THREAT OF AFTERNOON SHOWERS AND THUNDERSTORMS OVER THE
HIGHER TERRAIN EAST OF JOHNSON CREEK.


.SATURDAY...

SKY/WEATHER.........MOSTLY SUNNY...THEN BECOMING MOSTLY CLOUDY. A
                    SLIGHT CHANCE OF THUNDERSTORMS AND RAIN SHOWERS
                    IN THE AFTERNOON.
MAX TEMPERATURE.....74 TO 78.
MIN HUMIDITY........24 TO 28 PERCENT.
WIND - EYE LEVEL....LESS THAN 3 MPH IN THE MORNING...BECOMING WEST
                    3 TO 6 MPH IN THE AFTERNOON. GUSTY ERRATIC WINDS
                    POSSIBLE IN THE AFTERNOON FROM THUNDERSTORMS.
HAINES INDEX........4 LOW.
MIXING HEIGHT.......11000 FT AGL.
TRANSPORT WIND......SOUTHWEST AROUND 5 MPH.
VENTILATION INDEX...550 GOOD.

.SATURDAY NIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS LIKELY THROUGH THE
                    NIGHT WITH A CHANCE OF THUNDERSTORMS.
MIN TEMPERATURE.....46 TO 50.
MAX HUMIDITY........80 TO 85 PERCENT.
WIND - EYE LEVEL....WEST AROUND 6 MPH IN THE
                    EVENING...SHIFTING TO THE EAST AROUND 4 MPH
                    AFTER MIDNIGHT.
HAINES INDEX........2 VERY LOW.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WIND......NORTH AROUND 10 MPH.
VENTILATION INDEX...100 POOR.

.SUNDAY...

SKY/WEATHER.........PARTLY SUNNY. A CHANCE OF SHOWERS IN THE
                    AFTERNOON WITH A SLIGHT CHANCE OF THUNDERSTORMS.
MAX TEMPERATURE.....68 TO 72.
MIN HUMIDITY........31 TO 35 PERCENT.
WIND - EYE LEVEL....NORTHWEST 4 TO 7 MPH.
HAINES INDEX........2 VERY LOW.
MIXING HEIGHT.......8000 FT AGL.
TRANSPORT WIND......NORTH AROUND 15 MPH.
VENTILATION INDEX...1200 EXCELLENT.

$$
FORECASTER...REDMAN/GROENERT
REQUESTED BY...MARK LOSEKE
TYPE OF REQUEST...PRESCRIBED
.TAG 20090523.CRAWF.01/BOI