762
FNUS76 KPDT 212223
FWSPDT

Spot Forecast for Kittitas Valley Fire Weather...KVFR Station #28
National Weather Service Pendleton OR
323 PM PDT Tue Jul 21 2026

Forecast is based on forecast start time of 0600 PDT on July 22.
***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...Elevated fire weather conditions continue through
Wednesday with relative humidities dropping to the mid-teens with
light sustained northwest winds at less than 12 mph. Will see some
showers develop late Wednesday night into Thursday morning, but
chance of wetting rains developing are low (0 to 10 percent chance).
Otherwise, overnight recoveries will be moderate with maximum humidities
in the 40 to 50 percent range.

.WEDNESDAY...

Sky/weather.........Sunny (20-30 percent). Patchy smoke.
Chance of pcpn......10 percent.
Chance of lightning.5 percent.
Max temperature.....94-99.
Min humidity........15-20 percent.
Surface winds (mph).Light winds becoming southeast 5 to 10 mph by
                    11 AM, then shifting to the northwest 5 to 10 mph
                    by 3 PM.
Mixing height.......9600 ft AGL early in the morning.
Transport winds.....Northwest 7 to 12 mph shifting to the southwest
                    5 to 10 mph late in the morning, then shifting
                    to the west 5 to 10 mph late in the afternoon.

TIME (PDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Chc of ltng (%).0      0      0      0      10     10
Temp............71     76     83     89     92     94
RH..............36     35     29     24     22     22
Surface wind....W 4    N 4    NE 4   SE 6   SE 8   NW 6
Surface wnd gst.5      5      5      8      12     10

.WEDNESDAY NIGHT...

Sky/weather.........Mostly cloudy (60-70 percent). Patchy smoke
                    early in the evening. Slight chance of showers
                    late in the evening.
Chance of pcpn......20 percent.
Chance of lightning.9 percent.
Min temperature.....72-77.
Max humidity........42-47 percent.
Surface winds (mph).Northwest winds 5 to 10 mph.
Mixing height.......500 ft AGL.
Transport winds.....Northwest 12 to 17 mph.

.THURSDAY...

Sky/weather.........Mostly cloudy (65-75 percent) then becoming
                    sunny (10-20 percent). Slight chance of showers
                    in the morning.
Chance of pcpn......20 percent.
Chance of lightning.12 percent.
Max temperature.....89-94.
Min humidity........25-30 percent.
Surface winds (mph).Northwest winds 5 to 10 mph.
Mixing height.......7800 ft AGL.
Transport winds.....Northwest 12 to 14 mph shifting to the
                    southwest around 12 mph late in the afternoon,
                    then shifting to the northwest late in the
                    afternoon.

$$
Forecaster...Day
Requested by...Rose Beaton
Type of request...OTHER
.TAG 2617881.0/PDT
.DELDT 07/21/26
.FormatterVersion 2.0.0
.EMAIL rose_beaton@firenet.gov