Suppression Forecast
Issued by NWS Pendleton, OR

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000
FNUS76 KPDT 182118
FWSPDT

Spot Forecast for HEAD WATER...SEIMT1
National Weather Service Pendleton OR
218 PM PDT Fri Aug 18 2017

Forecast is based on request time of 1500 PDT on August 18.
***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...A dry westerly flow will remain over south central
Washington over the next several days. A weak but dry cold front
bringing the gusty winds this afternoon and evening (mainly along
ridgetops) will also bring slightly cooler temperatures and
higher humidity on Saturday.

.REST OF TODAY...

Sky/weather.........Mostly sunny.
CWR.................0 percent.
LAL.................1.
Max temperature.....84.
Min humidity........20 percent.
Wind (20 ft)........Light wind becoming west 5-8 mph after 1500.
Ridgetop wind.......West-Northwest 8-14 mph gusting to 23 mph.
Mixing height.......3500 ft AGL.
Transport winds.....West around 14 mph.
Haines Index........5 (moderate).

.TONIGHT...

Sky/weather.........Mostly clear.
CWR.................0 percent.
LAL.................1.
Min temperature.....57.
Max humidity........64 percent.
Wind (20 ft)........West winds 8-12 mph with gusts up to 20
                    mph...decreasing to 5-10 mph after 2000...
                    then downslope 2-5 mph after midnight.
Ridgetop wind.......Northwest 10-16 mph gusting to 30 mph decreasing to
                    4-8 mph after midnight.
Mixing height.......3000 ft AGL decreasing to 500 ft AGL overnight.
Transport winds.....West around 8 mph.
Haines Index........4 (low).

.SATURDAY...

Sky/weather.........Mostly sunny.
CWR.................0 percent.
LAL.................1.
Max temperature.....78-82.
Min humidity........25-30 percent.
Wind (20 ft)........Light upslope 1-3 mph...becoming West 3-7 mph
                    in the late afternoon.
Ridgetop wind.......Southwest-West 3-7 mph.
Mixing height.......1000 ft AGL increasing to 4500 ft AGL
                    late in the morning.
Transport winds.....West-Northwest around 8 mph.
Haines Index........3 (very low).

$$

Forecaster...Wister
Requested by...Gary Duranceau
Type of request...WILDFIRE
.TAG 1714568.0/PDT
.EMAIL g.duranceau@comcast.net



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