FNUS76 KOTX 131717
FWSOTX

SPOT FORECAST FOR HIGHWAY 17 FIRE...OTHER
NATIONAL WEATHER SERVICE SPOKANE WA
1017 AM PDT SAT AUG 13 2011

FORECAST IS BASED ON REQUEST TIME OF 1052 MDT ON AUGUST 13.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

HIGH PRESSURE WILL PERSIST OVER THE FIRE TODAY ALLOWING TEMPERATURES
TO WARM SLIGHTLY VERSUS YESTERDAY WITH LOWER RELATIVE HUMIDITY LEVELS.
MEANWHILE PRESSURE GRADIENTS WILL GROW ACROSS THE CASCADES ALLOWING
INCREASING SOUTHWEST WINDS TO IMPACT THE FIRE LATE IN THE AFTERNOON
AND EVENING. THE RIDGE WILL SHIFT EAST OF THE FIRE ON SUNDAY
BRINGING COOLER TEMPERATURES...SLIGHTLY HIGHER HUMIDITY VALUES...AND
MORE WESTERLY WINDS. A DRAMATIC SHIFT IN THE WEATHER PATTERN WILL
ARRIVE LATE SUNDAY NIGHT INTO MONDAY AS A COLD FRONT WILL BRING
MUCH COOLER AND WETTER WEATHER TO THE AREA.

.TODAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....88.
MIN HUMIDITY........18 PERCENT.
MIXING HEIGHT.......BECOMING 7000 FT
                    AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 8 TO 12 MPH.
LAL.................1.
HAINES INDEX........4 LOW.
WIND (20 FT)........SOUTHWEST TO WEST WIND 2 TO 5 MPH IN THE MORNING
                    INCREASING TO 7 TO 11 MPH AROUND 1600
                    WITH GUSTS TO 16 MPH.

.TONIGHT...

SKY/WEATHER.........CLEAR.
CWR.................0 PERCENT.
MIN TEMPERATURE.....53.
MAX HUMIDITY........60 PERCENT.
MIXING HEIGHT.......7000 FT AGL IN THE EVENING...BECOMING 800 FT
                    AGL OVERNIGHT.
TRANSPORT WINDS.....WEST TO NORTHWEST 10 TO 15 MPH.
LAL.................1.
HAINES INDEX........4 LOW.
WIND (20 FT)........WEST TO NORTHWEST WINDS 8 TO 12 MPH WITH GUSTS
                    TO 17 MPH IN THE EVENING. WIND DECREASING TO 4 TO
                    8 MPH OVERNIGHT.

.SUNDAY...

SKY/WEATHER.........MOSTLY SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....80.
MIN HUMIDITY........24 PERCENT.
MIXING HEIGHT.......800 FT AGL IN THE MORNING...BECOMING 7500 FT
                    AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
LAL.................1.
HAINES INDEX........3 VERY LOW.
WIND (20 FT)........WEST WINDS 3 TO 6 MPH IN THE MORNING SHIFTING
                    INCREASING TO 7 TO 11 MPH IN THE AFTERNOON.

$$
FORECASTER...FX
REQUESTED BY...SCOTT BLYSTONE
TYPE OF REQUEST...WILDFIRE
.TAG 20110813.HIGHW.01/OTX