967
FNUS76 KPDT 250511
FWSPDT

Spot Forecast for signal peak fire...yakima county fire district 5
National Weather Service Pendleton OR
1011 PM PDT Fri Jul 24 2026

Forecast is based on forecast start time of 2200 PDT on July 24.
***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.

...RED FLAG WARNING IN EFFECT FROM 10 AM TO 8 PM PDT SATURDAY...

.DISCUSSION...Critical winds and low relative humidities Saturday
may lead to rapid fire spread concerns. Winds will slowly decrease
tonight, but will increase mid-morning and onward, peaking between
1200-1600 out of the southwest. Clear skies, high transport winds,
and very high ventilation index will also be present Saturday.
Afternoon humidities drop slightly on Sunday, with breezy winds
expected to stay just below red flag criteria.


.REST OF TONIGHT...

Sky/weather.........Mostly clear (5-15 percent).
CWR.................0 percent.
Chance of lightning.1 percent.
Min temperature.....62-65.
Max humidity........53-58 percent.
Wind (20 ft)........West winds 7 to 11 mph.
Ridgetop wind.......West winds 9 to 14 mph
Mixing height.......500 ft AGL.
Transport winds.....West 9 to 15 mph.
Ventilation Index...Low (50) overnight.

TIME (PDT)      10P 11P MID 1AM 2AM 3AM 4AM 5AM 6AM 7AM 8AM 9AM
Chc of ltng (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............80  77  75  73  71  68  66  64  63  66  70  73
RH..............34  37  41  46  50  53  56  60  59  52  46  40
20 FT wind dir..W   W   W   W   W   W   W   SW  SW  W   W   SW
20 FT wind spd..10  9   9   10  11  8   7   7   5   8   9   11
20 FT wind gust.14  14  14  16  16  14  12  11  12  12  12  14

.SATURDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....86-89.
Min humidity........20-25 percent.
Wind (20 ft)........Breezy. Southwest winds 5 to 10 mph with gusts
                    to around 22 mph increasing to 17 to 22 mph
                    with gusts to around 30 mph after 1000. Winds
                    peak between 1200-1600.
Mixing height.......6100 ft AGL.
Transport winds.....Southwest 9 to 17 mph increasing to 22 to 28
                    mph late in the morning.
Ventilation Index...Low (180) increasing to very high (1050) in the
                    afternoon.

.SATURDAY NIGHT...

Sky/weather.........Mostly clear (0-10 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....56-59.
Max humidity........67-72 percent.
Wind (20 ft)........West winds 17 to 22 mph with gusts to around 30
                    mph shifting to the southwest 5 to 10 mph after
                    2200.
Mixing height.......1000 ft AGL in the evening then 500 ft AGL
                    overnight.
Transport winds.....West 16 to 22 mph decreasing to 6 to 9 mph late
                    in the evening.
Ventilation Index...Moderate (490) decreasing to low (30)
                    overnight.

.SUNDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....Around 90.
Min humidity........16-21 percent.
Wind (20 ft)........West winds 4 to 8 mph shifting to the south
                    with gusts to around 17 mph late in the
                    morning, then shifting to the southwest 12 to
                    17 mph with gusts to around 25 mph after 1400.
Mixing height.......8300 ft AGL.
Transport winds.....Southwest 5 to 8 mph increasing to 17 to 18 mph
                    late in the afternoon.
Ventilation Index...Low (70) increasing to very high (750) in the
                    afternoon.

$$
Forecaster...Callihan
Requested by...ec
Type of request...WILDFIRE
.TAG 2618188.0/PDT
.DELDT 07/24/26
.FormatterVersion 2.0.0
.EMAIL emmylou.carlisle@ycfd5.org