FNUS75 KBOI 211057
FWSBOI

SPOT FORECAST FOR SPRINGS...BOISE NF
NATIONAL WEATHER SERVICE BOISE ID
457 AM MDT TUE AUG 21 2012

FORECAST IS BASED ON REQUEST TIME OF 1946 MDT ON AUGUST 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO MIDNIGHT MDT
TONIGHT...
...NO WETTING RAIN WEDNESDAY THROUGH FRIDAY...
...GUSTY WEST WINDS FRIDAY...

.DISCUSSION...
MOISTURE WILL EXPAND NORTH WITH A THREAT OF THUNDERSTORMS WITH GUSTY
WINDS 10 AM THROUGH 8 PM. SURFACE LOW AND UPPER SYSTEM WILL SHIFT EAST
OF THE FIRE AROUND 8 PM WITH DRIER WEST FLOW IN THE EARLY EVENING. DRY
WEST FLOW WILL RETURN FOR WEDNESDAY THROUGH THURSDAY. A DRY COLD FRONT
WITH MORE WIND WILL CROSS THE SPRINGS FIRE THURSDAY NIGHT OR EARLY
FRIDAY WITH AFTERNOON WIND GUSTS POSSIBLY IN THE 25 TO 35 MPH RANGE.

.TODAY...

SKY/WEATHER.........SUNNY IN THE MORNING...THEN BECOMING MOSTLY
                    CLOUDY IN THE AFTERNOON. SCATTERED SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....AT 6000 FEET 81....AT 2900 FEET 94.
MIN HUMIDITY........AT 6000 FEET 24 PERCENT AT 2900 FEET 13 PERCENT.
WIND - EYE LEVEL....LIGHT DOWNSLOPE WINDS EARLY THIS MORNING BECOMING
                    UPSLOPE/UPVALLEY 3 TO 6 MPH. RIDGETOP WINDS SOUTH
                    15 MPH. WIND GUSTS UP TO 40 MPH WITH THUNDERSTORMS.
HAINES INDEX........4 LOW.
MIXING HEIGHT.......12000 FT AGL.
TRANSPORT WIND......SOUTHWEST AROUND 15 MPH.
VENTILATION INDEX...1800 EXCELLENT.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY WITH SCATTERED SHOWERS AND
                    THUNDERSTORMS UNTIL EARLY EVENING...THEN PARTLY
                    CLOUDY BY MIDNIGHT. SOME THUNDERSTORMS MAY
                    PRODUCE GUSTY WINDS IN THE EVENING. CHANCE OF
                    PRECIPITATION 20 PERCENT.
MIN TEMPERATURE.....52 AT 6000 FEET AND 61 AT 2900 FEET.
MAX HUMIDITY........75 PERCENT AT 6000 FEET AND 54 PERCENT AT 2900 FEET.
WIND - EYE LEVEL....WEST 3 TO 6 MPH GUSTING TO 11 MPH IN THE EVENING THEN
                    LIGHT DOWNSLOPE AFTER MIDNIGHT.
HAINES INDEX........2 VERY LOW.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WIND......NORTHEAST AROUND 5 MPH.
VENTILATION INDEX...25 POOR.

.WEDNESDAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....72 TO 87.
MIN HUMIDITY........19 TO 27 PERCENT.
WIND - EYE LEVEL....WEST AROUND 5 MPH.
HAINES INDEX........2 VERY LOW.
MIXING HEIGHT.......8000 FT AGL.
TRANSPORT WIND......WEST AROUND 10 MPH.
VENTILATION INDEX...800 EXCELLENT.

$$
FORECASTER...MILLS
REQUESTED BY...ICT3 TIM OLIVERIUS
TYPE OF REQUEST...WILDFIRE
.TAG 20120820.SPRIN.02/BOI