330
FNUS76 KPDT 301621
FWSPDT

Spot Forecast for RANSIER FIRE...YAKIMA CO FPD #5
National Weather Service Pendleton OR
921 AM PDT Thu Jul 30 2026

Forecast is based on forecast start time of 0900 PDT on July 30.
***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.

...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY EVENING...

.DISCUSSION...A slightly warmer (+2) and drier (-1%) day over the
fire area today, as high pressure keeps skies sunny and
ventilation moderate. Light winds expected today, with directions
shifting from east in the morning to the south through the
afternoon. Inversion begins to develop between 2100-2200 under
clear skies with good overnight humidity recoveries into Friday
morning.

.REST OF TODAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....91-94.
Min humidity........13-18 percent.
Wind (20 ft)........East winds 3 to 7 mph shifting to the south 4
                    to 8 mph late in the afternoon.
Mixing height.......7000 ft AGL.
Transport winds.....Southeast around 5 mph shifting to the
                    southwest 6 to 8 mph late in the morning.
Ventilation Index...Low (30-40) increasing to moderate (350) in the
                    afternoon.

TIME (PDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM
Chc of ltng (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............71  77  80  84  87  89  90  90  91  90  89  85
RH..............37  31  27  23  20  19  19  19  18  20  22  25
20 FT wind dir..SE  E   E   E   E   SE  S   S   S   SW  SW  SW
20 FT wind spd..4   4   5   4   3   4   6   7   7   8   7   6
20 FT wind gust.6   6       8   10  10  10  10  10  11  11  8

.TONIGHT...

Sky/weather.........Mostly clear (5-15 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....Around 60.
Max humidity........44-49 percent.
Wind (20 ft)........Southwest winds 4 to 8 mph becoming light and
                    from the west after midnight.
Mixing height.......500 ft AGL in the evening.
Transport winds.....West 5 to 8 mph becoming light.
Ventilation Index...Low (170-190) decreasing to low (30)
                    overnight.

$$
Forecaster...Callihan
Requested by...JOEY WEEDIN
Type of request...WILDFIRE
.TAG 2618678.0/PDT
.DELDT 07/30/26
.FormatterVersion 2.0.0
.EMAIL dispatch@ycfd5.org