Suppression Forecast
Issued by NWS Pendleton, OR

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000
FNUS76 KPDT 081023
FWSPDT

Spot Forecast for Grouse Flat RX...WDFW
National Weather Service Pendleton OR
323 AM PDT Sat May 8 2021

Forecast is based on ignition time of 1000 PDT on May 08.
***Thunderstorms imply gusty and erratic winds***
***Winds are 20 foot 10-minute averages***
***CWR-Chance of wetting rain 0.10 or greater***

If you have questions or concerns with this forecast, please
contact our office at (541) 276-8134.

.DISCUSSION...An upper trough will move off to the east and a
northwest flow will move in behind it. This will keep cool
conditions over the burn site for the next couple of days. There
may be an isolated shower Sunday afternoon, otherwise it will be
dry. Winds will be lighter each day, but may still be locally
breezy, mainly on the ridge tops today.

.TODAY...

Sky/weather.........Partly cloudy.
CWR.................0 percent.
LAL.................1.
Max temperature.....50-55.
Min humidity........35-40 percent.
Wind (20 ft)........West 3-7 mph.
Ridgetop wind.......west 8-15 mph.
Mixing height.......7500 ft AGL.
Transport winds.....Northwest 10-20 mph.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...

Sky/weather.........Partly cloudy.
CWR.................0 percent.
LAL.................1.
Min temperature.....36-41.
Max humidity........74-79 percent.
Wind (20 ft)........Becoming drainage 1-5 mph after midnight.
Ridgetop wind.......Becoming west 5-10 mph.
Mixing height.......600 ft AGL in the evening then near surface.
Transport winds.....West 6-12 mph.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.SUNDAY...

Sky/weather.........Mostly cloudy. A chance of rain showers in the
                    afternoon.
CWR.................5 percent.
LAL.................1.
Max temperature.....50-55.
Min humidity........54-59 percent.
Wind (20 ft)........West 1-5 mph early, becoming northwest 2-6
                    mph by afternoon.
Ridgetop wind.......West 2-6 mph early morning, becoming
                    northwest 3-7 mph.
Mixing height.......Near surface then 4400 ft AGL by late morning.
Transport winds.....Becoming northwest 5-10 mph.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

$$

Forecaster...Cloutier
Requested by...Drew DeLozier
Type of request...PRESCRIBED
.TAG 2110627.11/PDT
.DELDT 05/08/21
.FormatterVersion 1.0.26
.EMAIL drew.deloz@dfw.wa.govier


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