430
FNUS76 KPDT 162343
FWSPDT

Spot Forecast for Lone Rock...FBAN
National Weather Service Pendleton OR
443 PM PDT Tue Jul 16 2024

Forecast is based on forecast start time of 0700 PDT on July 17.
***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.

...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
...RED FLAG WARNING IN EFFECT FROM 11 PM THIS EVENING TO 5 PM PDT
WEDNESDAY...

.DISCUSSION...Hot, dry, and unstable conditions will persist this
evening through tomorrow with 50-60% chances of thunderstorms
over the area. Thunderstorm chances will increase just before
midnight, and persist into the early afternoon Wednesday. Gusty
and erratic outflow winds are expected to be 35 to 40 mph within
these storms. Lightning is also expected and could strike outside
any rain shaft. Winds generally 5 to 10 mph from the north to
northwest will impact the fire site each afternoon. RHs will in
the teens both afternoons, with poor to moderate recovery in the
overnight hours.

.WEDNESDAY...

Sky/weather.........Partly sunny (60-70 percent) then becoming
                    sunny (15-25 percent). Patchy smoke. Slight
                    chance of showers and thunderstorms.
CWR.................2 percent.
LAL.................2.
Max temperature.....90-94.
Min humidity........12-17 percent.
Wind (20 ft)........Northeast winds 5 to 6 mph shifting to the
                    north 5 to 10 mph in the afternoon. Gusty and
                    erratic winds expected near thunderstorms.
Mixing height.......11300 ft AGL early in the morning.
Transport winds.....North around 9 mph.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

.WEDNESDAY NIGHT...

Sky/weather.........Mostly clear (10-20 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....62-65.
Max humidity........45-50 percent.
Wind (20 ft)........Northwest winds 6 to 11 mph shifting to the
                    west 5 to 8 mph after midnight, then shifting
to the southwest before dawn. Gusts up to 22 mph
early in the evening.
Mixing height.......600 ft AGL in the evening.
Transport winds.....West around 13 mph.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

.THURSDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....88-92.
Min humidity........14-19 percent.
Wind (20 ft)........Southwest winds 4 to 7 mph shifting to the
                    northwest 5 to 10 mph in the afternoon.
Mixing height.......7200 ft AGL early in the morning.
Transport winds.....West around 8 mph.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

$$
Forecaster...Lawhorn
Requested by...Andrew Taylor
Type of request...WILDFIRE
.TAG 2418205.4/PDT
.DELDT 07/16/24
.FormatterVersion 2.0.0
.EMAIL andrew.taylor2@usda.gov