266
FNUS76 KPDT 160527
FWSPDT

Spot Forecast for Pine Fire...BLM
National Weather Service Pendleton OR
1027 PM PDT Fri Aug 15 2025

Forecast is based on forecast start time of 0600 PDT on August 16.
***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...A cold front will move across the region on Saturday and bring
rain.  Rain chances will be highest early in the day, with rain decreasing
Saturday evening and ending Saturday night.  Another shot of rain is possible
on Sunday.  There are also slight chances (20 percent) of afternoon and evening
thunderstorms both Saturday and Sunday.  Wetting rain chances increase to 50-55
percent on Saturday.

MIN RH values will be around 50 percent Saturday, and much lower, in the 20 to 25
percent range on Sunday, with excellent recoveries overnight.

.SATURDAY...

Sky/weather.........Mostly cloudy (80-90 percent). Rain showers
                    likely (70%) in the morning. Slight chance (20%)
                    of afternoon and evening thunderstorms. Chance (50%)
                    of rain showers early in the afternoon, decreasing
                    to 30% late in the afternoon.
CWR.................32 percent increasing to 54 percent late in the
                    morning, then decreasing to 8 percent late in
                    the afternoon.
Chance of lightning.21 percent.
Max temperature.....72-75.
Min humidity........49-54 percent.
Wind (20 ft)........Light winds becoming northwest 5 to 7 mph early
                    in the morning. Gusty and erratic winds
                    expected near thunderstorms late in the
                    morning.
Ridgetop wind.......West to northwest wind 5 to 10 mph.
Mixing height.......3300 ft AGL.
Transport winds.....West 7 to 8 mph.
Ventilation Index...Poor (80) increasing to poor (170) in the
                    afternoon.

TIME (PDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Chc of ltng (%).0      10     10     20     20     20
Temp............55     60     64     67     69     71
RH..............81     76     73     70     61     55
20 ft wind......W 4    NW 5   NW 5   NW 6   NW 6   NW 6
20 ft wind gust.5      7      7      10     11     11

.SATURDAY NIGHT...

Sky/weather.........Mostly cloudy (65-75 percent). Slight chance (20%)
                    of thunderstorms early in the evening. Slight
                    chance (20%) of rain showers in the evening.
CWR.................8 percent.
Chance of lightning.21 percent.
Min temperature.....51-54.
Max humidity........82-87 percent.
Wind (20 ft)........North winds 5 to 7 mph early in the evening
                    becoming light, then becoming northwest 5 to 7
                    mph late in the evening becoming light. Gusty
                    and erratic winds expected near thunderstorms
                    early in the evening.
Ridgetop wind.......South to southwest wind around 5 mph in the evening
                    becoming northwest overnight.
Mixing height.......1200 ft AGL.
Transport winds.....West 6 to 8 mph.
Ventilation Index...Poor (110) decreasing to poor (70) overnight.

.SUNDAY...

Sky/weather.........Mostly sunny (25-35 percent). Slight chance (20%) of
                    rain showers late in the morning. Slight chance (20%)
                    of thunderstorms late in the afternoon.
CWR.................0 percent.
Chance of lightning.17 percent.
Max temperature.....81-84.
Min humidity........22-27 percent.
Wind (20 ft)........Light winds becoming southwest 5 to 8 mph late
                    in the morning, then shifting to the west around 5 mph
                    late in the afternoon. Gusty and erratic
                    winds expected near thunderstorms late in the
                    afternoon.
Ridgetop wind.......Southwest wind 5 to 10 mph becoming west in the afternoon.
Mixing height.......7800 ft AGL.
Transport winds.....West 5 to 6 mph shifting to the southwest 7 to
                    10 mph late in the morning.
Ventilation Index...Poor (50) increasing to fair (460) in the
                    afternoon.

$$
Forecaster...Nierenberg
Requested by...IC
Type of request...WILDFIRE
.TAG 2520021.0/PDT
.DELDT 08/15/25
.FormatterVersion 2.0.0
.EMAIL lrumachik23@gmail.comm