Suppression Forecast
Issued by NWS Portland, OR

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FNUS76 KPQR 241701
FWSPQR

SPOT FORECAST FOR MT TOM...CORVALLIS MOUNTAIN RESCUE UNIT
NATIONAL WEATHER SERVICE PORTLAND OR
1001 AM PDT FRI APR 24 2015

FORECAST IS BASED ON INCIDENT TIME OF 0929 PDT ON APRIL 24.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...AN UPPER LOW CENTERED OVER THE SOUTH BRITISH COLUMBIA
COAST THIS MORNING WILL SLOWLY MOVE SOUTHEAST TO EASTERN WASHINGTON
BY SATURDAY AFTERNOON. THIS WILL KEEP A COOL SHOWERY AIRMASS IN
PLACE THROUGH SATURDAY.


.TODAY...

SKY/WEATHER.........MOSTLY CLOUDY WITH SHOWERS LIKELY.
CHANCE OF PCPN......70 PERCENT.
SNOW LEVEL..........AROUND 3000 FEET...BUT LITTLE ACCUMULATION
                    EXPECTED BELOW 4000 FEET.
MAX TEMPERATURE.....45 TO 50.
MIN HUMIDITY........AROUND 70 PERCENT.
VISIBILITY..........GENERALLY UNLIMITED...BUT SHOWERS MAY LOCALLY
                    REDUCE VISIBILITIES TO 3 MILES CREATING
                    MVFR FLIGHT CONDITIONS.
CEILING.............PREVAILING BROKEN TO OVERCAST CLOUD DECK WILL
                    BE 5000 TO 7000 FT MSL. A LOWER SCATTERED CLOUD
                    LAYER BETWEEN 2000 AND 3000 FT MSL MAY AT TIMES
                    CREATE A BROKEN MVFR CEILING AND CAUSE MOUNTAIN
                    OBSCURATIONS.

TIME (PDT)      9 AM   11 AM  1 PM   3 PM   5 PM
CLOUD COVER(%)..100    95     90     85     80
WEATHER COV.....LIKELY LIKELY LIKELY LIKELY LIKELY
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
TEMP............42     44     46     48     48
RH..............94     83     74     69     71
CHC OF PCPN(%)..60     70     70     70     70


.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY WITH SHOWERS LIKELY.
CHANCE OF PCPN......70 PERCENT.
SOW LEVEL...........AROUND 4000 FEET.
MIN TEMPERATURE.....35 TO 40.
MAX HUMIDITY........100 PERCENT.
VISIBILITY..........GENERALLY UNLIMITED...BUT SHOWERS MAY LOCALLY
                    REDUCE VISIBILITIES TO 5 MILES CREATING MVFR
                    FLIGHT CONDITIONS.
CEILING.............PREVAILING BROKEN TO OVERCAST CLOUD DECK WILL
                    BE AROUND 5000 FT MSL. A LOWER SCATTERED CLOUD
                    LAYER BETWEEN 2000 AND 3000 FT MSL MAY AT TIMES
                    CREATE A BROKEN MVFR CEILING AND CAUSE MOUNTAIN
                    OBSCURATIONS.


.SATURDAY...

SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS LIKELY IN THE MORNING...
                    THEN A CHANCE OF SHOWERS IN THE AFTERNOON. SMALL
                    HAIL POSSIBLE WITH SOME OF THE SHOWERS.
CHANCE OF PCPN......70 PERCENT IN THE MORNING...DECREASING TO 40
                    PERCENT IN THE AFTERNOON.
SNOW LEVEL..........AROUND 4000 FEET.
MAX TEMPERATURE.....AROUND 50.
MIN HUMIDITY........60 TO 70 PERCENT.
VISIBILITY..........GENERALLY UNLIMITED...BUT THERE IS A CHANCE FOR
                    THE SHOWERS IN THE MORNING TO LOCALLY REDUCE
                    VISIBILITY TO 5 MILES CREATING MVFR FLIGHT
                    CONDITIONS.
CEILING.............PREVAILING BROKEN CLOUD DECK WILL BE 5000 FT MSL
                    IN THE MORNING RISING TO 7000 FT IN THE
                    AFTERNOON. THERE IS A CHANCE FOR A LOWER CEILING
                    AROUND 3000 FT MSL TO CAUSE MVFR FLIGHT
                    CONDITIONS AND MOUNTAIN OBSCURATIONS IN THE
                    MORNING.

$$
FORECASTER...DELSON
REQUESTED BY...TODD SHECHTER
REASON FOR REQUEST...SAR
.TAG 20150424.MTTOM.01/PQR



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