007
FNUS76 KPDT 100456
FWSPDT

Spot Forecast for OR-DEF-0111...USFS
National Weather Service Pendleton OR
956 PM PDT Thu May 9 2024

Forecast is based on forecast start time of 2200 PDT on May 09.
***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...Warmer and drier conditions tomorrow at the wildfire
site compared to today. An upper-level ridge will persist
overhead into the weekend, though weakening with the ridge highly
likely to break down late this weekend or Monday. A weak surface
pressure pattern at the surface will favor and promote light
diurnal and terrain driven winds through Saturday. This is
expected to occur in tandem with deep mixing heights.

.REST OF TONIGHT...

Sky/weather.........Mostly clear (5-15 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....34.
Max humidity........70-75 percent.
Wind (20 ft)........Northeast winds 5 to 8 mph becoming light
                    drainage winds 3 to 5 mph early in the
                    morning.
Mixing height.......400 ft AGL late in the evening.
Transport winds.....Northeast 5 to 10 mph in the late evening and
                    overnight becoming light around 3 mph.
Haines Index........2 to 3 or very low potential for large plume
                    dominated fire growth.

TIME (PDT)      10 PM  MIDNGT 2 AM   4 AM   6 AM   8 AM
Temp............51     46     41     35     37     46
RH..............54     64     70     75     75     68
20 ft wind......NE 7   NE 6   SW 5   SW 4   S 3    E 6
20 ft wind gust.11

.FRIDAY...

Sky/weather.........Sunny (5-15 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....76.
Min humidity........15-20 percent.
Wind (20 ft)........Light upslope winds 3 to 5 mph becoming east
                    5 to 10 mph early in the morning.
Mixing height.......7200 ft AGL.
Transport winds.....Light winds 3 mph becoming east 10 mph late
                    in the morning.
Haines Index........2 to 3 or very low potential for large plume
                    dominated fire growth.

.FRIDAY NIGHT...

Sky/weather.........Mostly clear (0-10 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....38-41.
Max humidity........75-80 percent.
Wind (20 ft)........East southeast winds 5 to 8 mph becoming light
                    drainage winds 3 to 5 mph late in the evening.
Mixing height.......500 ft AGL.
Transport winds.....Southeast around 5 mph in the evening becoming
                    light.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

$$
Forecaster...Townsend
Requested by...Deschutes National Forest
Type of request...WILDFIRE
.TAG 2413675.0/PDT
.DELDT 05/09/24
.FormatterVersion 2.0.0
.EMAIL christopher.duke@usda.gov