FNUS76 KPDT 200335 CCA
FWSPDT

SPOT FORECAST FOR COLUMBIA FIRE...USFS DEF
NATIONAL WEATHER SERVICE PENDLETON OR
831 PM PDT MON JUL 19 2010...CORRECTED

FORECAST IS BASED ON REQUEST TIME OF 2000 PDT ON JULY 19.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...DRY AND STABLE CONDITIONS WILL PERSIST FOR THE NEXT 24
HOURS. WINDS WILL BECOME DRAINAGE THIS EVENING AND THEN BECOME
DRIVEN BY A NORTHERLY PRESSURE GRADIENT DURING THE DAY ON
TUESDAY.

***THUNDERSTORMS IMPLY GUSTY AND ERRATIC WINDS***
***WINDS ARE 20 FOOT 10 MINUTE AVERAGES***
***CWR-CHANCE OF WETTING RAIN 0.10 INCH OR GREATER***
***FORECAST IS VALID FOR 12 HOURS AFTER ISSUANCE***

.TONIGHT...

SKY/WEATHER.........CLEAR.
CWR.................0.
MIN TEMPERATURE.....46
MAX HUMIDITY........56 PERCENT.
WIND (20 FT)........NORTH WINDS 4 TO 8 MPH SHIFTING TO THE
                    NORTHWEST 2 TO 5 MPH AFTER MIDNIGHT...THEN
                    BECOMING DRAINAGE WINDS LESS THAN 5 MPH LATE IN
                    THE NIGHT.
 UPR SLP/RIDGETOP...NORTH TO NORTHEAST WINDS 4 TO 8 MPH BECOMING
                    EAST 1 TO 4 MPH AFTER MIDNIGHT.
MIXING HEIGHT.......7000 FT AGL DECREASING TO NEAR SURFACE AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....NORTH AROUND 6 MPH IN THE EVENING BECOMING
                    LIGHT.
LAL.................1.
HAINES INDEX........5 (MODERATE).

.TUESDAY...

SKY/WEATHER.........SUNNY.
CWR.................0.
MAX TEMPERATURE.....85.
MIN HUMIDITY........13 PERCENT.
WIND (20 FT)........UPSLOPE LESS THAN 5 MPH BECOMING NORTH 4 TO 9
                    MPH IN THE LATE MORNING AND AFTERNOON.
 UPR SLP/RIDGETOP...NORTHEAST WINDS 2 TO 5 MPH SHIFTING TO NORTH
                    4 TO 8 MPH IN THE AFTERNOON.
MIXING HEIGHT.......NEAR SURFACE INCREASING TO 8500 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....LIGHT WINDS.
LAL.................1.
HAINES INDEX........5 (MODERATE).

$$
FORECASTER...ALAN POLAN
REQUESTED BY...HART
TYPE OF REQUEST...WILDFIRE
.TAG 20100719.COLUM.01/PDT