FNUS76 KOTX 241151
FWSOTX

SPOT FORECAST FOR TWO TAIL RX...CHELAN FIRE DEPT.
NATIONAL WEATHER SERVICE SPOKANE WA
451 AM PDT THU SEP 24 2009

FORECAST IS BASED ON IGNITION TIME OF 0600 MDT ON SEPTEMBER 24.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
THE STRONG UPPER LEVEL RIDGE WILL WEAKEN TODAY...WITH A SURFACE
THERMAL TROUGH PASSING THROUGH THE BURN AREA TODAY AND INTO MONTANA
THIS AFTERNOON. HOT AND DRY CONDITIONS WILL CONTINUE TODAY WITH
LITTLE CHANGE OVER YESTERDAY'S TEMPERATURES...POSSIBLY ONE OR TWO
DEGREES COOLER. SOUTH TO SOUTHWEST WINDS WILL DEVELOP OVER THE BURN AREA
AFTER THE MORNING INVERSION BREAKS AROUND 11 AM.  DRY AND COOLER
WEATHER WILL PERSIST THROUGH THE WEEKEND HOWEVER A DISTURBANCE
PASSING THROUGH BRITISH COLUMBIA ON SATURDAY COULD BRING WINDY
CONDITIONS AND VERY LOW RELATIVE HUMIDITY VALUES.

.TODAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 78.
MIN HUMIDITY........25 PERCENT.
WIND (20 FT)........VARIABLE 2 TO 5 MPH IN THE MORNING BECOMING
                    SOUTH 5 TO 7 MPH IN THE AFTERNOON. SOUTHWEST
                    GUSTS TO 12 MPH AFTER 3 PM.
MIXING HEIGHT.......NEAR SURFACE IN THE MORNING...BECOMING 2600 FT
                    AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 8 TO 12 MPH.
HAINES INDEX........5 MODERATE.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
MIN TEMPERATURE.....AROUND 55.
MAX HUMIDITY........64 PERCENT.
WIND (20 FT)........DOWNSLOPE 2 TO 5 MPH.
MIXING HEIGHT.......2500 FT AGL IN THE EVENING DECREASING TO 1000
                    FT AGL OVERNIGHT.
TRANSPORT WINDS.....WEST 3 TO 5 MPH.
HAINES INDEX........4 LOW.

.FRIDAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 75.
MIN HUMIDITY........30 PERCENT.
WIND (20 FT)........DOWNSLOPE 2 TO 5 MPH BEFORE 10 AM BECOMING
                    UPSLOPE 5 TO 6 MPH AFTER NOON.
MIXING HEIGHT.......1000 FT AGL IN THE MORNING INCREASING TO 3000
                    FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 8 TO 12 MPH.
HAINES INDEX........5 MODERATE.

$$
FORECASTER...MF
REQUESTED BY...GK
TYPE OF REQUEST...PRESCRIBED
.TAG 20090924.TWOTA.03/OTX