925
FNUS76 KPDT 101741
FWSPDT

Spot Forecast for Anna Bell Fire...WA Department of Natural Resources
National Weather Service Pendleton OR
1041 AM PDT Sat Aug 10 2024

Forecast is based on forecast start time of 1100 PDT on August 10.
***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.

...RED FLAG WARNING IN EFFECT UNTIL 10 PM PDT THIS EVENING...

.DISCUSSION...Another round of isolated thunderstorms are
expected to impact the fire area through late this afternoon.
Thunderstorms are expected to begin developing between 11AM-2PM,
then move out of the area to the east after 5PM. Gusty erratic
winds, small hail, frequent lightning, and brief downpours will
be possible with any storms. Storm activity will stay to the east
of the fire area tonight through Sunday. Inversions will develop
begin developing between 10-11PM, then lifting at around 10AM
Sunday morning. Overnight drainage winds will shift to the west
after 10AM at around 5 to 8 mph, with mainly northwest winds
along the ridgetop at around 5 to 10 mph.

.REST OF TODAY...

Sky/weather.........Sunny (15-25 percent). Slight chance of showers
                    and thunderstorms late in the morning. Haze
                    through the day.
CWR.................5 percent.
LAL.................2 until 1700, then 1.
Max temperature.....83-86.
Min humidity........29-34 percent.
Wind (20 ft)........West winds 5 to 8 mph. Gusty and erratic winds
                    expected near thunderstorms late in the
                    morning.
Ridgetop wind.......Northwest winds 7 to 12 mph.
Mixing height.......6900 ft AGL.
Transport winds.....West 9 to 16 mph.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

TIME (PDT)      11 AM  1 PM   3 PM   5 PM   7 PM   9 PM
Temp............75     81     81     80     78     69
RH..............45     38     34     38     48     62
20 ft wind......W 7    W 7    W 8    W 8    W 8    NW 5
20 ft wind gust.10     10     13     13     13     10

.TONIGHT...

Sky/weather.........Mostly clear (10-20 percent). Haze.
CWR.................1 percent.
LAL.................1.
Min temperature.....Around 60.
Max humidity........75-80 percent.
Wind (20 ft)........Northwest winds 5 to 8 mph becoming light
drainage winds after 11PM.
Ridgetop wind.......Northwest winds 7 to 12 mph becoming 5 to 8 mph
after 11PM.
Mixing height.......500 ft AGL.
Transport winds.....Northwest 8 to 16 mph.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

.SUNDAY...

Sky/weather.........Mostly sunny (20-30 percent). Haze in the
                    morning.
CWR.................0 percent.
LAL.................1.
Max temperature.....80-83.
Min humidity........33-38 percent.
Wind (20 ft)........Drainage winds becoming west 5 to 8 mph after
10AM.
Ridgetop wind.......Northwest winds 5 to 8 mph shifting to the west
after 11AM.
Mixing height.......6300 ft AGL early in the morning.
Transport winds.....West 5 to 13 mph.
Haines Index........2 to 3 or very low potential for large plume
                    dominated fire growth.

$$
Forecaster...Lawhorn
Requested by...Edson Amezcua Gutierrez
Type of request...WILDFIRE
.TAG 2420033.0/PDT
.DELDT 08/10/24
.FormatterVersion 2.0.0
.EMAIL edson.amezcua@dnr.wa.gov