406
FNUS76 KPDT 031440
FWSPDT

Spot Forecast for Mud Lake RX...WA DNR
National Weather Service Pendleton OR
640 AM PST Mon Nov 3 2025

Forecast is based on ignition time of 0900 PST on November 04.
***Thunderstorms imply gusty and erratic winds***
***Winds are 20 foot 10-minute averages***
***CWR-Chance of wetting rain 0.10 or greater***
***Ventilation Index is derived from the
   transport wind multiplied by the mixing
   height in 100`s of feet. Index categories
   are a generalized indicator only.***

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

.DISCUSSION...An upper level system will bring rain to the fire area
through the day Tuesday beginning at 22% through noon, increasing to
80% after 5 PM with up to 0.40 inches possible in 24 hours. Another
round of rain with amounts to near 0.30 inches will occur through
Wednesday. Winds will be primarily from the east 5 to 8 mph shifting
to downslope/downvalley through the evening and into Wednesday before
switching to the south after noon Wednesday with slightly higher winds
along the ridgetops (6-10mph). RHs will be excellent through the period.


.TUESDAY...

Sky/weather.........Mostly cloudy (80-90 percent). Slight chance of
                    rain late in the morning, then rain in the
                    afternoon.
CWR.................85 percent.
Max temperature.....44-47.
Min humidity........82-87 percent.
Wind (20 ft)........East winds 5 to 8 mph.
Ridgetop wind.......East winds 6 to 10 mph.
Mixing height.......2200 ft AGL.
Transport winds.....East around 7 mph.
Ventilation Index...Poor (60-100).

.TUESDAY NIGHT...

Sky/weather.........Cloudy (90-100 percent). Rain.
CWR.................98 percent.
Min temperature.....Around 40.
Max humidity........92-97 percent.
Wind (20 ft)........Northeast winds 5 to 8 mph.
Ridgetop wind.......Northeast winds 6 to 10 mph.
Mixing height.......1600 ft AGL.
Transport winds.....East around 8 mph.
Ventilation Index...Poor (60-100) decreasing to poor (50-60)
                    overnight.

.WEDNESDAY...

Sky/weather.........Mostly cloudy (80-90 percent). Rain.
CWR.................98 percent.
Max temperature.....49-52.
Min humidity........80-85 percent.
Wind (20 ft)........East winds 5 to 8 mph shifting to the south
                    after 12PM.
Ridgetop wind.......East winds 6 to 10 mph shifting to the south
                    after 12PM.
Mixing height.......2600 ft AGL.
Transport winds.....Southeast around 8 mph.
Ventilation Index...Poor (50-80) increasing to poor (80) in the
                    afternoon.

$$
Forecaster...Bennese
Requested by...Tyler Meyer
Type of request...PRESCRIBED
.TAG 2524832.0/PDT
.DELDT 11/03/25
.FormatterVersion 2.0.0
.EMAIL tyler.meyer@dnr.wa.gov,carson.zepp@dnr.wa.gov