418
FNUS76 KPDT 090030
FWSPDT

Spot Forecast for Harland Command...Yakima Fire
National Weather Service Pendleton OR
530 PM PDT Wed May 8 2024

Forecast is based on forecast start time of 1800 PDT on May 08.
***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...Upper level high pressure will be building over
the region into the weekend. Warming and drying conditions are
expected, with afternoon temperatures increasing 6 to 8 degrees
and minimum relative humidities in the upper teens to low 20s
each day. Good to excellent overnight recoveries are also
expected. Northwest winds tonight will turn to the northeast
by tomorrow afternoon, back to the north Thursday night, then
turning to the east Friday afternoon. Winds will be the strongest
tomorrow afternoon, 7 to 13 mph, with gusts up to 17 mph possible.
Otherwise, wind will generally be 5 to 10 mph.

.TONIGHT...

Sky/weather.........Clear (0-10 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....44-47.
Max humidity........60-65 percent.
Wind (20 ft)........Northwest winds 5 to 10 mph.
Ridgetop wind.......North winds 7 to 13 mph.
Mixing height.......500 ft AGL in the evening.
Transport winds.....North around 9 mph.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.THURSDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....79-82.
Min humidity........17-22 percent.
Wind (20 ft)........North winds 5 to 10 mph shifting to the
                    northeast 7 to 13 mph in the afternoon.
Ridgetop wind.......Northeast winds 8 to 13 mph.
Mixing height.......7300 ft AGL early in the morning.
Transport winds.....Northeast around 15 mph.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.THURSDAY NIGHT...

Sky/weather.........Clear (0-5 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....50-53.
Max humidity........50-55 percent.
Wind (20 ft)........Northeast winds 7 to 13 mph shifting to the
                    north 5 to 10 mph overnight.
Ridgetop wind.......Northeast winds 6 to 12 mph becoming north
winds 5 to 10 mph.
Mixing height.......500 ft AGL in the evening.
Transport winds.....Northeast around 9 mph.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.FRIDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....85-88.
Min humidity........16-21 percent.
Wind (20 ft)........North winds 5 to 8 mph shifting to the east in
                    the afternoon.
Ridgetop wind.......North winds 5 to 10 mph shifting to the east
in the afternoon.
Mixing height.......6900 ft AGL early in the morning.
Transport winds.....East around 10 mph.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

$$
Forecaster...Lawhorn
Requested by...Deputy Chief D.J. Goldsmith
Type of request...WILDFIRE
.TAG 2413559.0/PDT
.DELDT 05/08/24
.FormatterVersion 2.0.0
.EMAIL dj.goldsmith@yakimawa.gov