Suppression Forecast
Issued by NWS Pendleton, OR

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FNUS76 KPDT 161039
FWSPDT

Spot Forecast for SPEARS RX...USFS
National Weather Service Pendleton OR
339 AM PDT Wed May 16 2018

Forecast is based on ignition time of 0600 PDT on May 16.
***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 low pressure system will continue to move northward
into the Pacific Northwest today and Thursday. This system will
bring a chance of showers and thunderstorms. Some storms could
produce gusty winds and heavy rain if the storm cell moves directly
over the burn area. It will be much cooler today than Tuesday. Cooler
showery weather will persist on Thursday.

.TODAY...

Sky/weather.........Cloudy. Numerous rain showers. A chance of
                    thunderstorms in the afternoon.
CWR.................50 percent.
LAL.................3.
Max temperature.....62.
Min humidity........58 percent.
Wind (20 ft)........Upslope 1-5 mph early becoming northwest 4-9 mph
                    by afternoon. Gusty and erratic winds expected
                    near thunderstorms in the afternoon.
Ridgetop wind.......Variable 2-6 mph early becoming northwest 10-15
                    mph by afternoon.
Mixing height.......700-1900 ft AGL increasing to 5300-5900 ft AGL.
Transport winds.....Northwest 12-18 mph.
Haines Index........2 (very low).

.TONIGHT...

Sky/weather.........Mostly cloudy. A chance of rain showers and a
                    slight chance of evening thunderstorms.
CWR.................20 percent.
LAL.................2.
Min temperature.....39-44.
Max humidity........91-96 percent.
Wind (20 ft)........Mostly west to northwest 3-7 mph early becoming
                    mostly drainage 1-5 mph after midnight. Gusty and
                    erratic winds expected near thunderstorms in the
                    evening.
Ridgetop wind.......Becoming northwest 2-6 mph by midnight.
Mixing height.......5900 ft AGL decreasing to 1100-3000 ft AGL
                    by dark.
Transport winds.....Northwest 7-13 mph.
Haines Index........2 (very low).

.THURSDAY...

Sky/weather.........Mostly cloudy. A slight chance of rain showers.
CWR.................2 percent.
LAL.................1.
Max temperature.....62-67.
Min humidity........35-40 percent.
Wind (20 ft)........Northwest 4-9 mph.
Ridgetop wind.......Northwest 8-15 mph.
Mixing height.......1100-1200 ft AGL increasing to 6000 ft AGL.
Transport winds.....Northwest 12-18 mph.
Haines Index........2 (very low).

$$

Forecaster...RSC
Requested by...STEVE KEMERY
Type of request...PRESCRIBED
.TAG 1810064.0/PDT
.EMAIL PRAIRIEDIV@GMAIL.COM


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