378 
FNUS76 KPDT 272116
FWSPDT

Spot Forecast for Butte Creek...WSA
National Weather Service Pendleton OR
216 PM PDT Sun Jul 27 2025

Forecast is based on forecast start time of 0600 PDT on July 28. 
***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...Dry and calm conditions will persist over the fire area
through the forecasted period. Light variable winds in the morning
turning east at 5-7 around 11 AM then northwest 5-8 around 2PM returning 
to light and variable overnight. Daytime RHs will be low (20-25%) with
moderate (56-62%) overnight recoveries. Tuesday will see light winds 
becoming northeast 5 to 8 mph around 11AM, then shifting to the north 
around 5 PM with low daytime RHs (17-22%).

.MONDAY...

Sky/weather.........Mostly sunny (20-30 percent). 
CWR.................2 percent. 
Chance of lightning.6 percent. 
Max temperature.....89-92. 
Min humidity........20-25 percent. 
Wind (20 ft)........Light winds becoming east 5 to 7 mph around
                    11 AM, then shifting to the northwest 5 
                    to 8 mph around 2PM. 
Ridgetop wind.......Variable winds 4 to 6 mph becoming east 7 to 9 mph 
                    around 11 AM, then shifting to the northwest 5 
                    to 8 mph around 2PM. 
Mixing height.......8200 ft AGL. 
Transport winds.....West around 5 mph early in the morning becoming 
                    light, then becoming southwest 5 to 7 mph late 
                    in the morning shifting to the northwest around 
                    8 mph. 
Ventilation Index...Poor (30) increasing to fair (320) 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............53     63     75     80     86     88     
RH..............72     52     37     29     25     26     
20 ft wind......N 3    E 4    E 4    E 6    NW 7   NW 7   
20 ft wind gust.4      5      5             8      8      

.MONDAY NIGHT...

Sky/weather.........Partly cloudy (25-35 percent). 
CWR.................2 percent. 
Chance of lightning.6 percent. 
Min temperature.....Around 60. 
Max humidity........57-62 percent. 
Wind (20 ft)........Northwest winds 5 to 8 mph in the evening and 
                    overnight becoming light. 
Ridgetop wind.......Northwest winds 7 to 9 mph in the evening and 
                    overnight becoming variable 3 to 5 mph. 
Mixing height.......800 ft AGL. 
Transport winds.....Northwest 5 to 12 mph. 
Ventilation Index...Fair (220) decreasing to poor (60) overnight. 

.TUESDAY...

Sky/weather.........Sunny (10-20 percent). 
CWR.................1 percent. 
Chance of lightning.8 percent. 
Max temperature.....91-94. 
Min humidity........17-22 percent. 
Wind (20 ft)........Light winds becoming northeast 5 to 8 mph around
                    11AM, then shifting to the north around 5 PM. 
Ridgetop wind.......Northwest winds 3 to 5 mph becoming northeast 
                    5 to 8 mph around 11AM, then shifting to the 
                    north around 5 PM. 
Mixing height.......10000 ft AGL. 
Transport winds.....West around 5 mph early in the morning becoming 
                    light, then becoming east around 7 mph late in 
                    the morning shifting to the north around 8 mph. 
Ventilation Index...Poor (30) increasing to fair (460) in the 
                    afternoon. 

$$
Forecaster...Bennese
Requested by...Orrah David
Type of request...WILDFIRE
.TAG 2518710.0/PDT
.DELDT 07/27/25
.FormatterVersion 2.0.0
.EMAIL orrah.david@ctwsbnr.org