FNUS76 KPQR 210010
FWSPQR

SPOT FORECAST FOR GAURD SCHOOL FIRE...MT HOOD NATIONAL FOREST
NATIONAL WEATHER SERVICE PORTLAND OR
510 PM PDT WED JUN 20 2012

FORECAST IS BASED ON IGNITION TIME OF 1230 PDT ON JUNE 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.BROADCAST DISCUSSION...HIGH PRESSURE IS WEAKENING OFFSHORE AND
ACROSS WASHINGTON. A THERMAL TROUGH OF LOW PRESSURE OVER
SOUTHWEST OREGON IS EXTENDING NORTHWARD INTO THE WILLAMETTE
VALLEY...AND WILL MOVE EASTWARD ACROSS THE CASCADES AND INTO
SOUTHEAST OREGON THURSDAY. THIS WILL RESULT IN ANOTHER WARM DAY
AND A BIT MORE INSTABILITY THURSDAY AFTERNOON. AN APPROACHING COLD
FRONT MAY ADD ENOUGH MOISTURE TO PRODUCE SOME THUNDERSTORMS OVER
THE OREGON CASCADE CREST MID TO LATE THURSDAY AFTERNOON...AND
THESE WOULD LIKELY TEND TO DRIFT EAST OF THE CREST. SO DO NOT RULE
OUT SOME LIGHTNING AND A COUPLE RAIN SHOWERS...MAINLY AFTER 1700.
A SURGE OF WEST WIND WILL DEVELOP AS WELL THURSDAY AFTERNOON AND
EVENING...FOLLOWED BY COOLER TEMPERATURES AND MORE RAIN LIKELY
FOR FRIDAY.


.THURSDAY...

SKY/WEATHER.........MOSTLY SUNNY. INCREASING CUMULUS BUILDUPS IN
                    THE AFTERNOON.
CWR (%).............NEAR ZERO.
MAX TEMPERATURE.....72-76.
MIN HUMIDITY........25-30 PERCENT.
WIND (20 FT)........UPSLOPE OR SOUTHEAST 2-5 MPH IN THE MORNING...
                    THEN SHIFTING WEST TO SOUTHWEST AND INCREASING
                    10-15 MPH WITH GUSTS 25-30 MPH BY LATE AFTERNOON.
EYE-LEVEL WIND......UPSLOPE OR SOUTHEAST 0-2 MPH IN THE MORNING...
                    THEN SHIFTING WEST TO SOUTHWEST AND INCREASING
                    4-8 MPH WITH GUSTS 15-20 MPH BY LATE AFTERNOON.
VISIBILITY..........UNRESTRICTED.
CEILING.............LIKELY NONE. PERHAPS SOME CUMULUS BASES AROUND
                    7000-10000 FT ABOVE GROUND LEVEL.

TIME (PDT)      8 AM   10 AM   NOON   2 PM   4 PM
SKY (%).........   5       5     15     25     40
TEMP............  54      62     73     74     73
RH..............  55      47     30     25     30
20 FT WIND...... E 1    SE 2   SW 5   W 10   W 13
   MAX GUST.....                 10     20     30


.THURSDAY NIGHT...

SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
                    CHANCE OF SHOWERS OR THUNDERSTORMS.
CWR (%).............20 PERCENT.
MIN TEMPERATURE.....AROUND 49.
MAX HUMIDITY........73 PERCENT.
WIND (20 FT)........WEST WINDS 10-15 MPH. GUSTS TO 30 MPH.
EYE-LEVEL WIND......WEST WINDS 4-8 MPH. GUSTS 15-20 MPH.
VISIBILITY..........GENERALLY UNRESTRICTED...POSSIBLY DOWN TO
                    5-7 MILES IN HEAVIER SQUALLS.
CEILING.............AS LOW AS 4000 FT AGL IN HEAVIER SHOWERS.


.FRIDAY...

SKY/WEATHER.........CLOUDY WITH RAIN AT TIMES.
CWR (%).............60 PERCENT.
MAX TEMPERATURE.....AROUND 60.
MIN HUMIDITY........60 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 10-15 MPH. GUSTS TO 30 MPH.
EYE-LEVEL WIND......SOUTHWEST WINDS 4-8 MPH. GUSTS 15-20 MPH.
VISIBILITY..........AS LOW AS 3-5 MILES IN HEAVIER RAIN.
CEILING.............AS LOW AS 2000 FT AGL IN HEAVIER RAIN.

$$
FORECASTER...WEAGLE
REQUESTED BY...SCOTT MACDONALD
REASON FOR REQUEST...PRESCRIBED
.TAG 20120621.GAURD.01/PQR