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000
FNUS76 KPDT 260042
FWSPDT

Spot Forecast for Deer Ridge Training Fire...Oregon Departmnet Forestry
National Weather Service Pendleton OR
542 PM PDT Thu Apr 25 2024

Forecast is based on ignition time of 1800 PDT on April 25.
***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...An upper level trough dropping through California
and an associated surface low off the Washington coast will
attribute to excellent overnight recoveries into Friday morning as
cloud cover will steadily increase through the day in response to
southwest flow aloft. Winds will shift from the southwest to the
west and increase around 10 AM, subsiding to 4 to 8 mph and
shifting back from the southwest after 9 PM. Winds will become
more southerly overnight. Afternoon humidities will drop 6 to 10%
from Thursday, with high temperatures again peaking in the
mid-50s at the fire site.

.FRIDAY...

Sky/weather.........Partly sunny (65-75 percent). Slight chance of
                    rain showers in the afternoon.
CWR.................0 percent.
LAL.................1.
Max temperature.....56-59.
Min humidity........41-46 percent.
Wind (20 ft)........Southwest winds 4 to 8 mph shifting to the
                    west 8 to 14 mph by mid-morning.
Ridgetop wind.......Southwest winds 5 to 10 mph shifting to the
                    west 10 to 18 mph by mid-morning.
Mixing height.......5800 ft AGL.
Transport winds.....West around 18 mph.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FRIDAY NIGHT...

Sky/weather.........Mostly cloudy (60-70 percent) then becoming
                    partly cloudy (45-55 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....Around 40.
Max humidity........80-85 percent.
Wind (20 ft)........West winds 7 to 13 mph shifting to the
                    southwest 4 to 8 mph overnight.
Ridgetop wind.......West winds 8 to 15 mph shifting to the
                    southwest 5 to 10 mph.
Mixing height.......700 ft AGL.
Transport winds.....West around 13 mph.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

$$
Forecaster...Callihan
Requested by...Zachary Rictor
Type of request...PRESCRIBED
.TAG 2412512.0/PDT
.DELDT 04/25/24
.FormatterVersion 2.0.0
.EMAIL Zachary.Rictor@odf.oregon.gov