596
FNUS76 KPDT 202340
FWSPDT

Spot Forecast for THREE QUEENS...USFS
National Weather Service Pendleton OR
440 PM PDT Mon Jul 20 2026

Forecast is based on forecast start time of 1800 PDT on July 20.
***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...Dry weather is expected through Tuesday night.

Winds will mainly be 10 mph or less.

MIN RH values will be 25 to 30 percent with moderate overnight
recoveries.

.TONIGHT...

Sky/weather.........Mostly cloudy (60-70 percent) then becoming
                    partly cloudy (40-50 percent). Patchy smoke.
CWR.................0 percent.
Chance of lightning.2 percent.
Min temperature.....63-66.
Max humidity........45-50 percent.
Wind (20 ft)........Light winds.
Ridgetop wind.......Southeast winds 5 to 10 mph.
Mixing height.......3100 ft AGL.
Transport winds.....Southeast around 6 mph shifting to the west
                    early in the evening, then shifting to the
                    north 7 to 8 mph late in the evening.
Ventilation Index...Low (30).

TIME (PDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Chc of ltng (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............83  81  77  73  71  70  68  67  66  65  64  64
RH..............33  38  48  46  46  44  45  46  46  47  47  46
20 FT wind dir..SE  SE  N   N   N   N   N   N   N   N   N   N
20 FT wind spd..4   3   2   2   2   2   2   2   2   2   2   2
20 FT wind gust.6   5   4   4       4   4   4   4

.TUESDAY...

Sky/weather.........Mostly sunny (40-50 percent). Patchy smoke.
CWR.................0 percent.
Chance of lightning.1 percent.
Max temperature.....Around 90.
Min humidity........25-30 percent.
Wind (20 ft)........Light winds becoming southwest 5 to 7 mph early
                    in the afternoon, then shifting to the west 5
                    to 8 mph late in the afternoon.
Ridgetop wind.......Southeast wind 5 to 10 mph becoming west around 10 mph
                    in the afternoon.
Mixing height.......6300 ft AGL .
Transport winds.....North around 7 mph early in the morning
                    becoming light, then becoming west 5 to 7 mph
                    late in the morning shifting to the northwest.
Ventilation Index...Low (30) increasing to moderate (270) in the
                    afternoon.

.TUESDAY NIGHT...

Sky/weather.........Partly cloudy (40-50 percent) then becoming
                    mostly cloudy (45-55 percent) then becoming
                    mostly clear (5-15 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....63-66.
Max humidity........46-51 percent.
Wind (20 ft)........Northwest winds 5 to 7 mph early in the evening
                    becoming light.
Ridgetop wind.......North to northwest wind around 10 mph.
Mixing height.......2900 ft AGL early in the evening.
Transport winds.....Northwest 9 to 10 mph.
Ventilation Index...Low (140) decreasing to low (30) overnight.

$$
Forecaster...Nierenberg
Requested by...WA-OWF-CERD
Type of request...WILDFIRE
.TAG 2617776.1/PDT
.DELDT 07/20/26
.FormatterVersion 2.0.0
.EMAIL katelyn.page@usda.gov