554
FNUS76 KPDT 122220
FWSPDT

Spot Forecast for Big Eddy Block 1...USFS
National Weather Service Pendleton OR
320 PM PDT Wed Jun 12 2024

Forecast is based on ignition time of 0800 PDT on June 13.
***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 with relatively light winds.
MIN RH values will be about 15 to 20 percent each day, with excellent
recovery THursday night.

.THURSDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....81-84.
Min humidity........17-22 percent.
Wind (20 ft)........Light winds becoming northeast 5 to 7 mph late
                    in the morning, then shifting to the southeast
                    late in the afternoon shifting to the northwest
                    late in the afternoon.
Ridgetop wind.......Light winds becoming north 5 to 10 in the afternoon.
Mixing height.......6400 ft AGL.
Transport winds.....Light winds becoming south around 6 mph late in
                    the morning, then shifting to the west 8 to 9
                    mph late in the afternoon.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

TIME (PDT)      8 AM   10 AM  NOON   2 PM   4 PM   6 PM
Temp............52     65     73     79     81     76
RH..............46     33     25     22     22     26
20 ft wind......NE 3   NE 3   NE 5   SE 6   SE 6   NW 7
20 ft wind gust.

.THURSDAY NIGHT...

Sky/weather.........Partly cloudy (25-35 percent) then becoming
                    clear (0-10 percent) then becoming partly
                    cloudy (25-35 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....41-44.
Max humidity........75-80 percent.
Wind (20 ft)........Northwest winds 5 to 10 mph shifting to the west
                    late in the evening.
Ridgetop wind.......North winds 5 to 10 mph becoming west, then southwest
                    by daybreak.
Mixing height.......600 ft AGL.
Transport winds.....Southwest 5 to 10 mph.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

.FRIDAY...

Sky/weather.........Mostly sunny (40-50 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....70-73.
Min humidity........17-22 percent.
Wind (20 ft)........West winds 5 to 10 mph shifting to the northwest
                    late in the morning.
Ridgetop wind.......West to southwest winds 5 to 10 mph becoming north
                    during the afternoon.
Mixing height.......7400 ft AGL.
Transport winds.....West 5 to 10 mph.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

$$
Forecaster...Nierenberg
Requested by...Jeff Crawford
Type of request...PRESCRIBED
.TAG 2416050.0/PDT
.DELDT 06/12/24
.FormatterVersion 2.0.0
.EMAIL jeffrey.crawford@usda.gov