Spot Forecast
Issued by NWS Pendleton, OR

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FNUS76 KPDT 040151
FWSPDT

Spot Forecast for Kittitas Co Fair...KCSO
National Weather Service Pendleton OR
651 PM PDT Thu Sep 3 2026

Forecast is based on forecast start time of 1900 PDT on September 03.
***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...Latest radar showed some heavy showers, with possible
thunder over and around Ellensburg.   Expect these showers to effect
the area through 8 PM, possibly as long as 9 PM.

Low temperatures will decrease from the 50s into the 40s overnight.




.REST OF TONIGHT...

Sky/weather.........Partly cloudy to mostly cloudy. (35-60 percent)
                    Showers and possibly a thunderstorm through 8 PM,
                    possibly as long as 9 PM then dry weather the rest
                    of the night with another slight chance (20%) of
                    rain showers early in the morning.
Chance of pcpn......100 percent, decreasing to 20 percent.
Chance of lightning.30 percent.
Min temperature.....44-47.
Max humidity........95-100 percent.
Surface winds (mph).Northwest winds 5 to 10 mph early in the evening
                    becoming light.  Winds could be higher in any heavy
                    showers or thunderstorms.
Mixing height.......500 ft AGL.
Transport winds.....Southwest around 5 mph shifting to the
                    northwest 8 to 9 mph early in the evening.

TIME (PDT)      7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM 6AM
Chc of ltng (%).10  0   0   0   0   0   0   0   0   0   0   0
Temp............62  57  54  53  52  51  50  48  47  46  45  44
RH..............62  70  77  81  83  87  89  91  95  98  99  100
Surface wnd dir.NW  NW  NW  NW  NW  NW  NW  NW  N   N   N   N
Surface wnd spd.6   6   5   5   5   5   4   4   3   3   3   3
Surface wnd gst.8   7   6   6

$$
Forecaster...Nierenberg
Requested by...Michael Bruce #40
Type of request...OTHER
.TAG 2621178.0/PDT
.DELDT 09/03/26
.FormatterVersion 2.0.0
.EMAIL michael.bruce@co.kittitas.wa.us,kittcom@kittcom.gov