450
FNUS76 KPDT 271015
FWSPDT

Spot Forecast for OR-DEF-0155...USFS
National Weather Service Pendleton OR
315 AM PDT Mon May 27 2024

Forecast is based on forecast start time of 0600 PDT on May 27.
***Thunderstorms imply gusty and erratic winds***
***Winds are 20 foot 10-minute averages***
***CWR-Chance of wetting rain 0.10 or greater***

If you have questions or concerns with this forecast, please
contact our office at (541) 276-8134.

.DISCUSSION...Dry conditions are expected today and tonight.
There is a low (10-15 percent) chance of a shower of thunderstorm
this afternoon. There is a chance of showers late Tuesday afternoon.
Winds will be relatively light today and tonight but increase on
Tuesday ahead of a trough and cold front.  WInds could gust 20 to 25
mph  Tuesday afternoon and evening.

MIN RH values will be about 25 to 30 percent today, and much higher on
Tuesday (45-50 percent), with excellent overnight recovery.

.TODAY...

Sky/weather.........Sunny (20-30 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....70-73.
Min humidity........27-32 percent.
Wind (20 ft)........Light winds becoming northwest 5 to 10 mph late
                    in the afternoon.
Ridgetop wind.......Light winds becoming northwest 5 to 10 mph late
                    in the afternoon.
Mixing height.......7500 ft AGL early in the morning.
Transport winds.....Light winds becoming south 5 to 6 mph late in
                    the morning, then shifting to the northwest
                    around 6 mph late in the afternoon.
Haines Index........2 to 3 or very low potential for large plume
                    dominated fire growth.

TIME (PDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Temp............38     44     56     66     69     68
RH..............86     74     52     36     32     39
20 ft wind......N 3    SE 3   SE 3   SW 4   NW 6   NW 6
20 ft wind gust.                     7      11     11

.TONIGHT...

Sky/weather.........Partly cloudy (35-45 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....41-44.
Max humidity........89-94 percent.
Wind (20 ft)........Northwest winds 5 to 10 mph in the evening
                    becoming light.
Ridgetop wind.......Northwest winds 5 to 10 mph.
Mixing height.......600 ft AGL.
Transport winds.....Northwest 5 to 8 mph in the evening becoming
                    light.
Haines Index........2 to 3 or very low potential for large plume
                    dominated fire growth.

.TUESDAY...

Sky/weather.........Mostly sunny (40-50 percent) then becoming
                    mostly cloudy (70-80 percent). Chance of rain
                    showers late in the afternoon (30%)
CWR.................4 percent.
LAL.................1.
Max temperature.....Around 60.
Min humidity........47-52 percent.
Wind (20 ft)........Light winds becoming west 5 to 10 mph with
                    gusts 20 to 25 mph in the afternoon.
Ridgetop wind.......Northwest wind 5 to 10 mph, increasing to
                    10 to 15 mph in the afternoon, with gusts
                    20 to 25 mph.
Mixing height.......4200 ft AGL early in the morning.
Transport winds.....Light winds becoming west 6 to 14 mph early in
                    the morning.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

$$
Forecaster...Nierenberg
Requested by...Sean Carroll
Type of request...WILDFIRE
.TAG 2415125.0/PDT
.DELDT 05/27/24
.FormatterVersion 2.0.0
.EMAIL Sean.carroll@usda.gov