066
FNUS76 KPDT 161137
FWSPDT

Spot Forecast for Airport RX...WA DNR
National Weather Service Pendleton OR
437 AM PDT Thu May 16 2024

Forecast is based on ignition time of 0700 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...Windy conditions expected over the next couple of
days as a broad weather system moves into the region. A Wind
Advisory is in effect for much of Kittitas County today as gusts
out of the west could exceed 40 mph at times this afternoon,
especially along exposed ridgetops. Strongest winds are expected
to occur today, however gusty conditions are expected to resume
Friday and last through much of the weekend.

.TODAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....71-74.
Min humidity........37-42 percent.
Wind (20 ft)........West-Southwest winds 8 to 14 mph early, becoming West
                    and increasing to 15 to 25 mph by the afternoon. Gusts
                    up to 35 mph at times.
Ridgetop wind.......West winds 25 to 35 mph, gusting up to 40 mph at times
                    in the afternoon.
Mixing height.......3800 ft AGL by the afternoon.
Transport winds.....West around 10 mph early, increasing to 20 to 25 mph
                    by the afternoon.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...

Sky/weather.........Mostly clear (15-25 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....36-39.
Max humidity........70-75 percent.
Wind (20 ft)........West winds 20 to 25 mph with gusts to around 35 mph
                    early, becoming Southwest at 10 to 15 mph overnight.
Ridgetop wind.......West winds 20 to 30 mph early in the evening, becoming
                    West-Southwest at 12 to 18 mph overnight.
Mixing height.......1100 ft AGL early in the evening, then near-
                    surface overnight.
Transport winds.....West around 20 mph early in the evening, decreasing
                    to around 12 mph overnight.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.FRIDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....62-65.
Min humidity........30-35 percent.
Wind (20 ft)........West winds 10 to 15 mph early, increasing to 20 to 25 mph
                    in the afternoon. Gusts up to 30 mph at times in the
                    afternoon.
Ridgetop wind.......West winds 20 to 30 mph.
Mixing height.......4600 ft AGL by the afternoon.
Transport winds.....West around 20 mph.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

$$
Forecaster...Evans
Requested by...Jason Hoerner
Type of request...PRESCRIBED
.TAG 2414355.0/PDT
.DELDT 05/16/24
.FormatterVersion 2.0.0
.EMAIL Jason.Hoerner@dnr.wa.gov