FNUS76 KOTX 021611
FWSOTX

SPOT FORECAST FOR LEMAH MRB...USFS OWF
NATIONAL WEATHER SERVICE SPOKANE WA
911 AM PDT WED SEP 2 2009

FORECAST IS BASED ON REQUEST TIME OF 0852 PDT ON SEPTEMBER 02.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
SOUTHERLY FLOW ALOFT AND A SURFACE THERMAL TROUGH OVER THE COLUMBIA
BASIN WILL PROMOTE CONTINUED WARM AND DRY CONDITIONS TODAY WITH
GENERALLY LIGHT TERRAIN DRIVEN WINDS. TONIGHT A BIG CHANGE IS IN
STORE AS A STRONG UPPER LEVEL TROUGH SWINGS THROUGH THE FIRE AREA.
THE RISK OF SHOWERS AND ISOLATED THUNDERSTORMS WILL INCREASE
DRAMATICALLY AFTER SUNSET TONIGHT...WITH A MARINE PUSH CREATING
ENHANCED WESTERLY DOWNSLOPE WINDS. A STRONG DRYING TREND WILL OCCUR
THURSDAY AFTERNOON WITH COOLER CONDITIONS AND BREEZY WEST WINDS.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY. SLIGHT CHANCE OF AFTERNOON
                    THUNDERSTORMS.
CWR.................5 PERCENT.
MAX TEMPERATURE.....75.
MIN HUMIDITY........44 PERCENT.
WIND (20 FT)........LIGHT DOWNSLOPE UNTIL 11 AM THEN BECOMING
                    SOUTHEAST 6 TO 8 MPH.
MIXING HEIGHT.......1500 FT AGL IN THE MORNING INCREASING TO 4500
                    FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH 10 MPH.
LAL.................1...BECOMING 2 AFTER 3 PM.
HAINES INDEX........3 VERY LOW.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS
                    IN THE EVENING...THEN RAIN SHOWERS LIKELY
                    OVERNIGHT.
CWR.................30 PERCENT.
MIN TEMPERATURE.....AROUND 44.
MAX HUMIDITY........87 PERCENT.
WIND (20 FT)........WEST WINDS 4 TO 8 MPH IN THE EVENING...BECOMING
                    NORTHWEST 6 TO 8 MPH AFTER 10 PM. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE EVENING.
MIXING HEIGHT.......4500 FT AGL IN THE EVENING DECREASING TO 1000
                    FT AGL OVERNIGHT.
TRANSPORT WINDS.....SOUTHWEST 3 TO 7 MPH.
LAL.................3.
HAINES INDEX........3 VERY LOW.

.THURSDAY...

SKY/WEATHER.........MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS IN THE
                    MORNING...BECOMING PARTLY SUNNY AFTER NOON.
CWR.................10 PERCENT.
MAX TEMPERATURE.....AROUND 60.
MIN HUMIDITY........51 PERCENT.
WIND (20 FT)........WEST WINDS 8 TO 10 MPH IN THE MORNING. WEST 4 TO 7 MPH
                    IN THE AFTERNOON.
MIXING HEIGHT.......1500 FT AGL IN THE MORNING INCREASING TO 3500
                    FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 15 MPH.
LAL.................1.
HAINES INDEX........4 LOW.

$$
FORECASTER...MF
REQUESTED BY...KEVIN MCPHEE
TYPE OF REQUEST...WILDFIRE
.TAG 20090902.LEMAH.01/OTX