043
FNUS76 KPDT 040348
FWSPDT

Spot Forecast for Antone...Oregon Department of Forestry
National Weather Service Pendleton OR
848 PM PDT Thu Jul 3 2025

Forecast is based on forecast start time of 2100 PDT on July 03.
***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...Isolated thunderstorm chances will increase overnight
with the arrival of an offshore weather system and continue into
tomorrow afternoon. Any thunderstorm will have the potential to
produce small hail and gusty outflow winds. Winds tonight will
shift to the west, becoming northwest tomorrow afternoon and north
Saturday afternoon. RHs recovery tonight will be moderate, with
RHs in the upper 30s tomorrow afternoon. Good to excellent recovery
tomorrow night with a return of RHs in the upper teens Saturday.

.REST OF TONIGHT...

Sky/weather.........Mostly cloudy (70-80 percent). Chance of rain
                    showers late in the evening. Slight chance of
                    thunderstorms overnight, then rain showers
                    likely and chance of thunderstorms early in the
                    morning.
CWR.................2 percent increasing to 57 percent early in the
                    morning.
Chance of lightning.25 percent.
Min temperature.....52-55.
Max humidity........58-63 percent.
Wind (20 ft)........Northwest winds 5 to 10 mph shifting to the west
                    4 to 7 mph after 12AM. Gusty and erratic winds
                    expected near thunderstorms overnight.
Ridgetop wind.......North winds 7 to 12 mph shifting to the northwest
5 to 8 mph after 12AM.
Mixing height.......1800 ft AGL late in the evening then 500 ft AGL
                    early in the morning.
Transport winds.....Northwest 9 to 13 mph.
Ventilation Index...Fair (400) decreasing to poor (40) overnight.

TIME (PDT)      9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM 6AM 7AM 8AM
Chc of ltng (%).0   0   10  10  10  20  20  20  30  30  30  20
Temp............67  64  61  59  57  55  54  53  52  52  53  56
RH..............35  37  39  45  47  50  53  54  57  62  63  62
20 FT wind dir..NW  NW  NW  NW  NW  W   W   W   W   W   W   NW
20 FT wind spd..10  8   8   6   6   7   7   7   5   5   5   6
20 FT wind gust.12  12  10  10  10  10  10  10  6   6   6

.INDEPENDENCE DAY...

Sky/weather.........Mostly cloudy (70-80 percent). Rain showers
                    likely in the morning. Chance of thunderstorms
                    through the day. Chance of rain showers in the
                    afternoon.
CWR.................57 percent decreasing to 16 percent late in the
                    morning.
Chance of lightning.27 percent.
Max temperature.....69-72.
Min humidity........37-42 percent.
Wind (20 ft)........West winds 4 to 7 mph shifting to the north
                    by 11AM, then shifting to the northwest
                    5 to 8 mph by 2PM. Gusty and erratic winds
expected near thunderstorms through the
afternoon.
Ridgetop wind.......West winds 5 to 8 mph shifting to the northwest
5 to 10 mph by 1PM.
Mixing height.......4500 ft AGL.
Transport winds.....Northwest 10 to 12 mph shifting to the north
                    around 6 mph late in the morning, then shifting
                    to the west 8 to 12 mph late in the afternoon.
Ventilation Index...Poor (110) increasing to fair (210) in the
                    afternoon.

.FRIDAY NIGHT...

Sky/weather.........Mostly cloudy (65-75 percent) then becoming
                    mostly clear (10-20 percent). Slight chance of
                    rain showers in the evening.
CWR.................8 percent.
Chance of lightning.14 percent.
Min temperature.....46-49.
Max humidity........75-80 percent.
Wind (20 ft)........Northwest winds 5 to 8 mph becoming drainage
winds after 2AM.
Ridgetop wind.......Northwest winds 5 to 10 mph shifting to the west
4 to 7 mph after 12AM.
Mixing height.......600 ft AGL in the evening and overnight.
Transport winds.....West 6 to 14 mph.
Ventilation Index...Fair (360) decreasing to poor (50) overnight.

.SATURDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
Chance of lightning.2 percent.
Max temperature.....Around 80.
Min humidity........17-22 percent.
Wind (20 ft)........Drainage winds becoming north 5 to 8 mph after
                    1PM.
Ridgetop wind.......West winds 4 to 7 mph shifting to the north
5 to 8 mph after 1PM.
Mixing height.......7200 ft AGL early in the morning.
Transport winds.....West around 6 mph shifting to the southwest 5
                    to 7 mph early in the morning, then shifting to
                    the west 6 to 7 mph late in the afternoon.
Ventilation Index...Poor (40) increasing to fair (310) in the
                    afternoon.

$$
Forecaster...Lawhorn
Requested by...Incident Command, E. Clark
Type of request...WILDFIRE
.TAG 2517279.0/PDT
.DELDT 07/03/25
.FormatterVersion 2.0.0
.EMAIL evanclarkie@gmail.com