444
FNUS76 KPDT 091236
FWSPDT

Spot Forecast for Galena 40c/41...USDA Forest Service
National Weather Service Pendleton OR
536 AM PDT Sat May 9 2026

Forecast is based on ignition time of 0800 PDT on May 09.
***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 transport wind
   multiplied by the mixing height in 100`s of ft.
   Categories are a generalized indicator only:
   low (< 200), moderate (200-500), high (500-700),
   and very high (> 700).                           ***

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

.DISCUSSION...High pressure will keep the area under dry and
warms conditions through the period. Daytime Rhs will be in the
13-18% range with overnight recoveries of 46-49%. Winds Saturday
will be variable with winds below 10 mph. Sunday will see an
increase in winds from the W at 5-10 mph with gusts nearing 20
mph with min RHs 11-16%

.REST OF TODAY...

Sky/weather.........Sunny (10-20 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....76-79.
Min humidity........13-18 percent.
Wind (20 ft)........Light winds becoming northwest 5 to 8 mph in
                    after 3PM.
Ridgetop wind.......Downslope/down Valley winds becoming northwest
                    7 to 10 mph after 3 PM.
Mixing height.......5900 ft AGL.
Transport winds.....Northwest 6 to 8 mph.
Ventilation Index...Low (80) increasing to moderate (310) in the
                    afternoon.

TIME (PDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM
Chc of ltng (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............46  57  62  66  69  73  75  76  76  75  74  70
RH..............60  42  34  27  26  22  20  18  18  18  21  30
20 FT wind dir..W   W   W   W   W   W   W   NW  NW  NW  NW  W
20 FT wind spd..3   4   5   6   6   7   7   7   7   7   6   4
20 FT wind gust.5   5   6   7   8   10  10  10  10  10  8   6

.TONIGHT...

Sky/weather.........Partly cloudy (25-35 percent) then becoming
                    mostly cloudy (50-60 percent) then becoming
                    partly cloudy (45-55 percent) then becoming
                    mostly cloudy (60-70 percent) then becoming
                    partly cloudy (25-35 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....46-49.
Max humidity........50-55 percent.
Wind (20 ft)........Northwest winds 5 to 6 mph through 6 PM
                    becoming light, then becoming east 5 to 8 mph
                    after 10 PM and overnight.
Ridgetop wind.......Northwest winds 7 to 9 mph through 6 PM
                    becoming light, then becoming east 7 to 10 mph
                    after 10 PM and overnight.
Mixing height.......4100 ft AGL early in the evening then 500 ft
                    AGL early in the morning.
Transport winds.....West around 6 mph early in the evening becoming
                    light, then becoming east 10 to 12 mph late in
                    the evening.
Ventilation Index...Low (40).

.SUNDAY...

Sky/weather.........Mostly sunny (40-50 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....83-86.
Min humidity........11-16 percent.
Wind (20 ft)........East winds 5 to 8 mph shifting to the west 5 to
                    10 mph with gusts to around 20 mph after 4 PM
Ridgetop wind.......East winds 7 to 10 mph shifting to the west 8 to
                    12 mph with gusts to around 24 mph after 4 PM.
Mixing height.......9400 ft AGL.
Transport winds.....East 12 to 14 mph shifting to the southwest 17
                    to 18 mph late in the morning, then shifting to
                    the west late in the afternoon.
Ventilation Index...Low (120) increasing to very high (1050) in the
                    afternoon.

$$
Forecaster...Bennese
Requested by...Brandon Borden
Type of request...PRESCRIBED
.TAG 2613180.0/PDT
.DELDT 05/09/26
.FormatterVersion 2.0.0
.EMAIL Brandon.Borden@usda.gov