FNUS76 KPDT 211118
FWSPDT

SPOT FORECAST FOR GUARD SCHOOL...USFS
NATIONAL WEATHER SERVICE PENDLETON OR
418 AM PDT THU JUN 21 2012

FORECAST IS BASED ON IGNITION TIME OF 1000 PDT ON JUNE 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...HIGH PRESSURE ALOFT WILL WEAKEN AS AN UPPER LOW OFF
THE COAST MOVES TO THE COAST. THIS WILL CAUSE UPPER LEVEL WINDS TO
SWITCH TO THE SOUTHEAST WHICH WILL TRANSPORT MOISTURE AND
INSTABILITY NORTHWARD TODAY AND FRIDAY. THIS WILL ALSO CAUSE AN
INCREASING CHANCE OF SHOWERS AND THUNDERSTORMS TODAY AND FRIDAY.
VERY WARM TEMPERATURES TODAY WILL COOL ABOUT 10-15 DEGREES WITH
HIGHER RELATIVE HUMIDITIES ON FRIDAY.

***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.........SUNNY THEN BECOMING PARTLY CLOUDY. ISOLATED
                    SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
CWR.................LESS THAN 10 PERCENT.
MAX TEMPERATURE.....84-86.
MIN HUMIDITY........22-24 PERCENT.
WIND (20 FT)........EAST TO SOUTHEAST 2 TO 6 MPH SWITCHING TO
                    NORTHWEST 4 TO 9 MPH IN THE AFTERNOON.
RIDGETOP WIND.......SOUTHEAST 3 TO 8 MPH SWITCHING TO NORTHWEST 8 TO
                    12 MPH IN THE AFTERNOON.
MIXING HEIGHT.......NEAR SURFACE INCREASING TO 7000 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....LIGHT WINDS EARLY BECOMING NORTHWEST 8 TO 12 MPH
                    IN THE AFTERNOON.

        TEMPERATURE     HUMIDITY     20-FT WIND (MPH)
0600        45             87           E 1-4
0800        58             72           SE 2-6
1000        72             51           NE 2-6
1200        80             35           N 2-6
1400        83             26           NW 3-8
1600        85             23           NW 4-9
1800        81             33           NW 4-9
2000        76             40           NW 3-9


.TONIGHT...

SKY/WEATHER.........BECOMING MOSTLY CLOUDY. A CHANCE OF SHOWERS AND
                    THUNDERSTORMS...MAINLY IN THE EVENING.
CWR.................10.
MIN TEMPERATURE.....49-51.
MAX HUMIDITY........87-89 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 6 TO 12 MPH IN THE EVENING
                    BECOMING WEST 4 TO 9 MPH AFTER MIDNIGHT.
RIDGETOP WIND.......NORTHWEST WINDS 8 TO 15 MPH BECOMING WEST 5 TO
                    10 MPH AFTER MIDNIGHT.
MIXING HEIGHT.......7000 FT AGL DECREASING TO 1500 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....WEST TO NORTHWEST 8 TO 15 MPH.


.FRIDAY...

SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN
                    THE MORNING...THEN SHOWERS LIKELY IN
                    THE AFTERNOON. COOLER.
CWR.................40.
MAX TEMPERATURE.....68-72.
MIN HUMIDITY........50-54 PERCENT.
WIND (20 FT)........BECOMING WEST 5 TO 10 MPH.
RIDGETOP WIND.......BECOMING NORTHWEST 9 TO 13 MPH.
MIXING HEIGHT.......1500 FT AGL INCREASING TO 6000 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....WEST 8 TO 12 MPH.

$$

FORECASTER...ROGER CLOUTIER
REQUESTED BY...COIDC
TYPE OF REQUEST...PRESCRIBED
.TAG 20120621.GUARD.01/PDT