226
FNUS76 KPDT 270041
FWSPDT

Spot Forecast for Kittitas County Fire/Ellensburg Rodeo...Kittitas Valley Fire and Rescue
National Weather Service Pendleton OR
541 PM PDT Tue Aug 26 2025

Forecast is based on forecast start time of 0600 PDT on August 27.
***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...Increasing monsoonal moisture and an upper low
clipping the region will produce slight chances of isolated showers
and thunderstorms in the Ellensburg area starting after 7AM tomorrow
morning. Thunderstorms will be capable of gusty winds, small hail, and
heavy rains. Winds will also increase from the northwest tomorrow
afternoon to 10 to 15 mph, with gusts up to 25 mph. Winds will be
10 mph or less Thursday, with a slight chance of an isolated rain
shower Thursday afternoon.

.WEDNESDAY...

Sky/weather.........Mostly cloudy (80-90 percent). Slight chance of
                    showers early in the morning. Slight chance of
                    thunderstorms early in the morning. Chance of
                    showers late in the morning.
Chance of pcpn......40 percent.
Chance of lightning.21 percent.
Max temperature.....89-92.
Min humidity........27-32 percent.
Surface winds (mph).Northwest winds 5 to 10 mph shifting to the north
around 11AM, then shifting to the northwest
10 to 15 mph with gusts up to 25mph after 1PM.
Mixing height.......5500 ft AGL.
Transport winds.....Northwest 6 to 13 mph.

TIME (PDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Chc of ltng (%).10  10  20  20  20  20  20  20  20  20  20  20
Temp............68  68  70  74  79  83  85  88  89  89  87  84
RH..............55  57  55  51  45  40  37  35  33  32  36  40
Surface wnd dir.NW  NW  NW  NW  NW  N   N   N   NW  NW  NW  NW
Surface wnd spd.9   9   9   9   9   9   9   9   10  10  10  14
Surface wnd gst.12  12  12  12  12  13  13  13  16  16  16  17

.WEDNESDAY NIGHT...

Sky/weather.........Mostly cloudy (65-75 percent) then becoming
                    partly cloudy (35-45 percent). Chance of
                    showers early in the evening. Slight chance of
                    thunderstorms in the evening. Slight chance of
                    showers early in the evening.
Chance of pcpn......30 percent.
Chance of lightning.20 percent.
Min temperature.....63-66.
Max humidity........79-84 percent.
Surface winds (mph).Northwest winds 10 to 15 mph decreasing to
5 to 10 mph after 11PM.
Mixing height.......1000 ft AGL.
Transport winds.....Northwest 6 to 13 mph.

.THURSDAY...

Sky/weather.........Mostly sunny (25-35 percent). Slight chance of
                    showers late in the morning.
Chance of pcpn......20 percent.
Chance of lightning.13 percent.
Max temperature.....89-92.
Min humidity........32-37 percent.
Surface winds (mph).Northwest winds 5 to 8 mph shifting to the
                    southeast 5 to 10 mph after 11AM.
Mixing height.......9200 ft AGL.
Transport winds.....Northwest around 6 mph early in the morning
                    becoming light, then becoming south 6 to 10 mph
                    late in the morning.

$$
Forecaster...Lawhorn
Requested by...Chief D.J. Goldsmith
Type of request...OTHER
.TAG 2520776.0/PDT
.DELDT 08/26/25
.FormatterVersion 2.0.0
.EMAIL Goldsmithd@kvfr.org