465
FNUS76 KPDT 292149
FWSPDT

Spot Forecast for Deer 7 Rx...USFS
National Weather Service Pendleton OR
249 PM PDT Sun Mar 29 2026

Forecast is based on ignition time of 1500 MDT on March 29.
***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...An approaching cold front will bring breezy winds
across the fire area this afternoon, slowly subsiding this evening.
Light snow will be possible after 2300 tonight, peaking in
chances early Monday morning. Amounts are expected to stay below
0.02", with excellent overnight humidity recoveries. Clouds will
break through the day on Monday, with high pressure leading to
diurnally-driven upslope/downslope winds.

.REST OF TODAY...

Sky/weather.........Partly sunny (55-65 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....Around 60.
Min humidity........27-32 percent.
Wind (20 ft)........West winds 10 to 15 mph with gusts up to 28 mph
                    becoming 3 to 8 mph after 1800.
Ridgetop wind.......West winds 12 to 17 mph with gusts up to 30 mph
                    becoming 4 to 9 mph after 1800.
Mixing height.......8000 ft AGL.
Transport winds.....Southwest around 30 mph becoming west around 20
                    mph late in the afternoon.
Ventilation Index...Excellent (1050).

TIME (MDT)      4PM 5PM 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM
Chc of ltng (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............57  57  55  53  47  42  40  38  37  36  34  34
RH..............30  29  32  38  49  58  64  67  72  71  77  77
20 FT wind dir..W   W   W   W   W   W   NW  NW  NW  NW  NW  NW
20 FT wind spd..15  12  8   6   4   3   3   3   3   2   2   4
20 FT wind gust.28  22  18  15  10  8   8   8   6   6   6   7

.TONIGHT...

Sky/weather.........Partly cloudy (45-55 percent) then becoming
                    mostly cloudy (65-75 percent). 15-25 percent
                    chance of snow after 2300.
CWR.................3 percent.
Chance of lightning.0 percent.
Min temperature.....Around 30.
Max humidity........77-82 percent.
Wind (20 ft)........West winds 4 to 8 mph becoming northwest 2 to
                    5 mph after 2200.
Ridgetop wind.......West winds 5 to 10 mph becoming northwest 3
                    to 7 mph after 2200.
Mixing height.......1200 ft AGL.
Transport winds.....West around 20 mph decreasing to 8 to 10 mph
                    early in the evening.
Ventilation Index...Fair (360) decreasing to poor (100) overnight.

.MONDAY...

Sky/weather.........Mostly cloudy (70-80 percent) then becoming
                    mostly sunny (40-50 percent). 45-55 percent
                    chance of snow between 0500 and 1100, becoming
                    15-25 percent chance between 1100 and 1700.
CWR.................3 percent.
Chance of lightning.0 percent.
Max temperature.....43-46.
Min humidity........22-27 percent.
Wind (20 ft)........Northwest, downsloping winds 2 to 5 mph becoming
                    southeast, upslope 3 to 7 mph by 1100.
Ridgetop wind.......Northwest winds 3 to 7 mph becoming southeast,
                    upslope 3 to 8 mph by 1100.
Mixing height.......5300 ft AGL.
Transport winds.....Northwest 8 to 12 mph.
Ventilation Index...Fair (200) increasing to fair (390) in the
                    afternoon.

$$
Forecaster...Callihan
Requested by...Trevor Lewis
Type of request...PRESCRIBED
.TAG 2608279.2/PDT
.DELDT 03/29/26
.FormatterVersion 2.0.0
.EMAIL brett.johnson@usda.gov,orbmc@firenet.gov,trevor.j.lewis@usda.gov