Suppression Forecast
Issued by NWS Pendleton, OR

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785
FNUS76 KPDT 121206
FWSPDT

Spot Forecast for Weihl Ridge...WA DNR
National Weather Service Pendleton OR
506 AM PDT Sat Jul 12 2025

Forecast is based on forecast start time of 0500 PDT on July 12.
***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...Building high pressure will support dry and warm
conditions. Afternoon RH values expected to drop into the 25-35%
range with moderate recovery tonight. West winds expected 5-15 mph
with gusts to 25 mph, higher on ridgetops.

.REST OF TONIGHT...

Sky/weather.........Mostly clear (10-20 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....Around 60.
Max humidity........70-75 percent.
Wind (20 ft)........West winds 5 to 7 mph.
Ridgetop wind.......West winds 5 to 7 mph.
Mixing height.......1400 ft AGL.
Transport winds.....West around 14 mph.
Ventilation Index...Fair (260).

TIME (PDT)      5AM 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM
Chc of ltng (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............59  59  63  66  72  75  79  81  84  86  86  85
RH..............76  76  71  68  56  50  44  39  36  33  33  33
20 FT wind dir..W   W   W   W   W   W   W   W   W   W   W   W
20 FT wind spd..7   7   7   8   8   8   11  11  11  12  12  12
20 FT wind gust.13  13  13  14  14  14  18  18  18  19  19  19

.TODAY...

Sky/weather.........Sunny (5-15 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....Around 90.
Min humidity........27-32 percent.
Wind (20 ft)........West winds 5 to 12 mph. Gusts up to 24 mph late
                    in the morning.
Ridgetop wind.......West winds 8 to 15 mph. Gusts up to 30 mph late
                    in the morning.
Mixing height.......4900 ft AGL.
Transport winds.....West 13 to 18 mph.
Ventilation Index...Fair (260) increasing to good (560) in the
                    afternoon.

.TONIGHT...

Sky/weather.........Mostly clear (10-20 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....60-63.
Max humidity........63-68 percent.
Wind (20 ft)........West winds 5 to 12 mph. Gusts up to 24 mph in
                    the evening and overnight.
Ridgetop wind.......West winds 7 to 13 mph. Gusts up to 27 mph in
                    the evening and overnight.
Mixing height.......1300 ft AGL.
Transport winds.....West 13 to 18 mph.
Ventilation Index...Fair (450) decreasing to poor (180) overnight.

$$
Forecaster...NWS Portland
Requested by...Lewis
Type of request...WILDFIRE
.TAG 2517862.0/PDT
.DELDT 07/12/25
.FormatterVersion 2.0.0
.EMAIL charles.lewis@dnr.wa.gov