Suppression Forecast
Issued by NWS Portland, OR

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SPOT FORECAST FOR YALE VIEW...WA STATE DNR
NATIONAL WEATHER SERVICE PORTLAND OR
817 PM PDT SUN MAY 1 2016

FORECAST IS BASED ON REQUEST TIME OF 1947 PDT ON MAY 01.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
DECREASING OFFSHORE FLOW OVERNIGHT SHOULD ALLOW WINDS TO RELAX.
HOWEVER...THERMAL BELTS SHOULD ACT TO KEEP TEMPERATURES UNUSUALLY
MILD AND PRODUCE SOMEWHAT POOR RELATIVE HUMIDITY RECOVERIES
TONIGHT. A WARM AND UNSTABLE AIRMASS WILL RESIDE OVER THE SITE ON
MONDAY WITH MID LEVEL HAINES INDICES OF 6. RELATIVE HUMIDITIES
SHOULD DROP EVEN LOWER ON MONDAY COMPARED TO SUNDAY.
HOWEVER...WINDS SHOULD BE NOTICEABLY LESS...BUT STILL REMAIN OUT
OF THE SOUTHEAST. THE GOOD NEWS IS THAT RELATIVE HUMIDITIES
SHOULD RISE RAPIDLY IN THE EVENING AS MARINE AIR SPREADS INTO THE
REGION. THIS WILL LIKELY BE ACCOMPANIED BY A RATHER ABRUPT
INCREASE AND SHIFT TO WESTERLY WINDS MONDAY EVENING THOUGH. A
SHOWER OR THUNDERSTORM COULD MOVE NORTHWESTWARD OVER THE SITE
MONDAY EVENING...BUT CONFIDENCE IN THIS SCENARIO IS LOW AT THIS
POINT. WETTING RAINS MONDAY EVENING AND MONDAY NIGHT APPEAR VERY
UNLIKELY. AN INCREASINGLY COOLER AND SHOWERY AIRMASS WILL SPREAD
OVER THE SITE MIDWEEK.


.REST OF TONIGHT...

SKY/WEATHER.........CLEAR.
CWR (%).............0 PERCENT.
MIN TEMPERATURE.....55-57.
MAX HUMIDITY........50-55 PERCENT.
WIND (20 FT)........EAST WINDS 3 TO 5 MPH WITH GUSTS TO 10 MPH
                       IN THE EVENING...BECOMING DRAINAGE 1 TO
                       3 MPH AFTER 2400.
LAL.................1.
HAINES INDEX(MID)...6 (HIGH).
HAINES INDEX(HIGH)..3 (VERY LOW).

.MONDAY...

SKY/WEATHER.........SUNNY IN THE MORNING...BECOMING PARTLY
                        CLOUDY IN THE AFTERNOON...AND MOSTLY
                        CLOUDY WITH A SLIGHT CHANCE OF A SHOWER
                        OR THUNDERSTORM IN THE EVENING.
CWR (%).............5 PERCENT IN THE EVENING.
MAX TEMPERATURE.....84-86.
MIN HUMIDITY........24-28 PERCENT.
WIND (20 FT)........BECOMING SOUTHEAST 3 TO 6 MPH AFTER 0900
                       BEFORE SHIFTING TO THE WEST AT 5 TO 8
                       MPH AFTER 1800.
LAL.................1...INCREASING TO 2 IN THE EVENING.
HAINES INDEX(MID)...6 (HIGH).
HAINES INDEX(HIGH)..2 (VERY LOW).


$$


FORECASTER...NEUMAN
REQUESTED BY...JANELLE LAWSON
REASON FOR REQUEST...WILDFIRE
.TAG 20160501.YALEV.01/PQR



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