FNUS76 KPDT 151051
FWSPDT

Spot Forecast for Muddy Run RX...WSA
National Weather Service Pendleton OR
351 AM PDT Thu Oct 15 2026

Forecast is based on ignition time of 0700 PDT on October 15. 
***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...Dry conditions will persist over the fire area
through the period. Winds will start light before becoming
E 5-7 mph after 1100 then becoming N after 1800 then NW after
2000 then light overnight. Daytime relative humidity will be 
in the low to mid 30% with overnight recoveries above 50%. 
Friday will see light winds shifting to the SE 5-8 mph after 
0800 then becoming light again after 1600. Daytime relative
humidity will be in the upper teens to low 20%. 

.REST OF TODAY...

Sky/weather.........Sunny (5-15 percent). 
CWR.................0 percent. 
Chance of lightning.0 percent. 
Max temperature.....Around 70. 
Min humidity........31-36 percent. 
Wind (20 ft)........Light winds becoming east 5 to 8 mph after
                    1100. 
Mixing height.......2600 ft AGL. 
Transport winds.....Light winds becoming southeast 9 to 10 mph late 
                    in the morning, then shifting to the northeast 
                    around 7 mph late in the afternoon. 
Ventilation Index...Low (30) increasing to low (200) in the 
                    afternoon. 

TIME (PDT)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 
Chc of ltng (%).0   0   0   0   0   0   0   0   0   0   0   0   
Temp............41  41  46  51  55  57  60  64  65  65  66  62  
RH..............83  84  73  65  57  51  45  40  36  35  37  42  
20 FT wind dir..N   W   S   E   SE  E   E   E   E   E   E   N   
20 FT wind spd..2   3   4   4   6   6   7   7   7   7   7   6   
20 FT wind gust.                    7   8   10  10  10  10  8   

.TONIGHT...

Sky/weather.........Mostly clear (15-25 percent). 
CWR.................0 percent. 
Chance of lightning.0 percent. 
Min temperature.....40-43. 
Max humidity........59-64 percent. 
Wind (20 ft)........North winds 5 to 6 mph after 1800 shifting to the 
                    northwest 5 to 7 mph after 2000, then 
                    becoming light after 2300 and overnight. 
Mixing height.......1000 ft AGL early in the evening then 500 ft 
                    AGL late in the evening. 
Transport winds.....Northeast around 7 mph shifting to the north 
                    around 8 mph early in the evening, then 
                    becoming light late in the evening becoming 
                    south around 7 mph overnight. 
Ventilation Index...Low (40) decreasing to low (30) overnight. 

.FRIDAY...

Sky/weather.........Mostly sunny (25-35 percent). 
CWR.................0 percent. 
Chance of lightning.0 percent. 
Max temperature.....75-78. 
Min humidity........17-22 percent. 
Wind (20 ft)........Light winds becoming southeast 5 to 8 mph after 0800,
                    then becoming light after 1600. 
Mixing height.......3000 ft AGL. 
Transport winds.....South 7 to 10 mph becoming light. 
Ventilation Index...Low (40) increasing to moderate (220) in the 
                    afternoon. 

$$
Forecaster...Bennese
Requested by...Gary Sampson
Type of request...PRESCRIBED
.TAG 2623805.0/PDT
.DELDT 10/15/26
.FormatterVersion 2.0.0
.EMAIL joshua.sohappy@ctwsbnr.org,charles.hudson@ctwsbnr.org,gary.sampson@ctwsbnr.org