821
FNUS76 KPDT 101240
FWSPDT

Spot Forecast for Williams Mine...Klickitat County Fire District 1
National Weather Service Pendleton OR
540 AM PDT Sat Aug 10 2024

Forecast is based on forecast start time of 0600 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.

.DISCUSSION...The main sensible weather concern is an elevated
risk of storms, around 30 percent, capable of frequent cloud to
ground lightning and outflow winds up to 45 mph. Meantime, storms
will be capable of wetting rains approaching a quarter of an inch,
and cannot rule out higher amounts, though much less likely.
Otherwise, light breezes and warmer than average with terrain
driven winds overnight. Excellent recovery expected overnight with
modest afternoon RH today and tomorrow.

.TODAY...

Sky/weather.........Sunny (15-25 percent). Chance of showers and
                    thunderstorms in the afternoon.
CWR.................30 percent.
LAL.................1 until 1300, then 3 until 1700, then 1.
Max temperature.....84-86.
Min humidity........24-26 percent.
Wind (20 ft)........Light drainage winds 2 to 4 early morning becoming
                    west northwest winds 4 to 8 mph. Gusty and erratic
                    winds expected near any thunderstorms that develop.
Ridgetop wind.......West wind around 5.
Mixing height.......8600 ft AGL.
Transport winds.....West 6 to 12 m[h.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

TIME (PDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Temp............58     63     75     82     85     86
RH..............83     78     54     40     26     28
20 ft wind......NW 2   NW 2   NW 6   WNW 6  WNW 8  W 8
20 ft wind gust.                            12     12

.TONIGHT...

Sky/weather.........Mostly clear (5-15 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....50-53.
Max humidity........88-93 percent.
Wind (20 ft)........Northwest winds 4 to 8 mph becoming light drainage
                    winds 2 to 4 mph.
Ridgetop wind.......Northwest around 5 mph.
Mixing height.......700 ft AGL.
Transport winds.....Northwest 8 to 12 mph.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

.SUNDAY...

Sky/weather.........Sunny (5-15 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....83-86.
Min humidity........29-34 percent.
Wind (20 ft)........Northwest winds 5 to 10 mph.
Ridgetop wind.......Northwest winds 5 to 10 mph.
Mixing height.......5900 ft AGL.
Transport winds.....West 7 to 15 mph.
Haines Index........2 to 3 or very low potential for large plume
                    dominated fire growth.

$$
Forecaster...Townsend
Requested by...Mark Henrichs
Type of request...WILDFIRE
.TAG 2419989.0/PDT
.DELDT 08/10/24
.FormatterVersion 2.0.0
.EMAIL mark_henrichs@firenet.gov