FNUS76 KPDT 181331
FWSPDT

SPOT FORECAST FOR MCCACHE 1...USFS
NATIONAL WEATHER SERVICE PENDLETON OR
630 AM PDT SUN APR 18 2010

FORECAST IS BASED ON IGNITION TIME OF 0800 PDT ON APRIL 18.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...DRY AND UNSEASONABLY WARM CONDITIONS ARE EXPECTED
TODAY AND TONIGHT.  A LARGE LOW PRESSURE TROUGH OFFSHORE WILL
GRADUALLY MOVE INLAND ON MONDAY...SPREADING PRECIPITATION TO THE
CASCADE RANGE MONDAY MORNING THEN ACROSS CENTRAL OREGON IN THE LATE
AFTERNOON. THE AIR MASS WILL BE UNSTABLE...THUS THERE IS A
POSSIBILITY OF A LATE AFTERNOON AND EVENING THUNDERSTORM.

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

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY.
CWR.................0.
MAX TEMPERATURE.....67.
MIN HUMIDITY........27 PERCENT.
WIND (20 FT)........SOUTH WINDS 2-7 MPH.
 UPR SLP/RIDGETOP...SOUTHEAST-SOUTH 5-9 MPH.
MIXING HEIGHT.......NEAR SURFACE INCREASING TO 8500 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTHEAST 5 TO 12 MPH.


                           TEMPERATURE     HUMIDITY     20-FT WIND (MPH)
                    1000        45             68        S 2 MPH
                    1200        58             49        S 5 MPH
                    1400        63             36        S 7 MPH
                    1600        65             30        S-SW 5 MPH
                    1800        61             47        SW 5 MPH
                    2000        51             72        SW-W 3 MPH


.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0.
MIN TEMPERATURE.....41.
MAX HUMIDITY........84 PERCENT.
WIND (20 FT)........SOUTH 2-5 MPH...BECOMING NORTHWEST 3-6 MPH
                    AFTER 8 PM...DECREASING TO 1-2 MPH AFTER
                    MIDNIGHT.
 UPR SLP/RIDGETOP...WEST 3-6 MPH...BECOMING NORTHWEST 5-10 MPH
                    AFTER 8 PM.
MIXING HEIGHT.......8500 FT AGL DECREASING TO NEAR SURFACE AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH.

.MONDAY...

SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS AND
                    A SLIGHT CHANCE OF THUNDERSTORMS IN
                    THE AFTERNOON...MAINLY AFTER 2 PM.
CWR.................10.
MAX TEMPERATURE.....67.
MIN HUMIDITY........32 PERCENT.
WIND (20 FT)........DOWNSLOPE 0-2 MPH...BECOMING SOUTH-SOUTHWEST
                    3-6 MPH AFTER 8 AM.
 UPR SLP/RIDGETOP...SOUTH 4-9 MPH.
MIXING HEIGHT.......NEAR SURFACE INCREASING TO 4000 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTH 5 TO 8 MPH.

$$

FORECASTER...MARY JOHNSON
REQUESTED BY...TREVOR MILLER
TYPE OF REQUEST...PRESCRIBED
.TAG 20100418.MCCAC.01/PDT