FNUS76 KOTX 011519
FWSOTX

SPOT FORECAST FOR PURTTEMAN...USFS
NATIONAL WEATHER SERVICE SPOKANE WA
819 AM PDT FRI OCT 1 2010

FORECAST IS BASED ON IGNITION TIME OF 1030 PDT ON OCTOBER 01.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
STRONG HIGH PRESSURE WILL PERSIST OVER THE PROPOSED BURN SITE TODAY
AND SATURDAY. THIS WILL RESULT IN DRY AND STABLE CONDITIONS...BUT ALSO
POOR TO MODERATE SMOKE DISPERSAL. THE RIDGE WILL BREAKDOWN ON SUNDAY AND
MONDAY AND TRACK A COLD FRONT ACROSS THE BURN AREA. EXPECT MUCH COOLER
TEMPERATURES...A CHANCE OF WETTING RAINS AND INCREASE WINDS. SPLIT FLOW
IS POSSIBLE NEXT WE AS HIGH PRESSURE BUILDS INTO BRITISH COLUMBIA AND
A CLOSED LOW TAKES UP POSITION OVER CENTRAL CALIFORNIA.

.TODAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....72.
MIN HUMIDITY........29 PERCENT.
WIND (20 FT)........DRAINAGE 2 TO 4 MPH...BECOMING SOUTHEAST-SOUTH
                    4 TO 7 MPH AFTER 1000.
MIXING HEIGHT.......INCREASING TO 2500 FT AFTER 1100.
                    AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH 3 TO 7 MPH.
LAL.................1.
HAINES INDEX........4 LOW.

.TONIGHT...

SKY/WEATHER.........CLEAR.
CWR.................0 PERCENT.
MIN TEMPERATURE.....51.
MAX HUMIDITY........62 PERCENT.
WIND (20 FT)........SOUTHEAST-SOUTH 3 TO 5 MPH...BECOMING SOUTH-SOUTHWEST
                    VARIABLE 2 TO 3 MPH AFTER 2100.
MIXING HEIGHT.......DECREASING TO NEAR THE SURFACE AFTER 2100.
TRANSPORT WINDS.....WEST 3 TO 7 MPH.
LAL.................1.
HAINES INDEX........4 LOW.

.SATURDAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....72.
MIN HUMIDITY........30 PERCENT.
WIND (20 FT)........SOUTHWEST-WEST WINDS 3 TO 5 MPH IN THE MORNING...BECOMING
                    SOUTH 4 TO 7 MPH AFTER 1200.
MIXING HEIGHT.......BECOMING 3000 FT AFTER 1100.
TRANSPORT WINDS.....SOUTHWEST 3 TO 7 MPH.
LAL.................1.
HAINES INDEX........4 LOW.

$$
FORECASTER...BT
REQUESTED BY...MARK VILLALOBOS
TYPE OF REQUEST...PRESCRIBED
.TAG 20101001.PURTT.01/OTX