521
FNUS76 KPQR 151352
FWSPQR

Spot Forecast for Crale Thin (4)...USFS
National Weather Service Portland OR
652 AM PDT Wed May 15 2024

Forecast is based on ignition time of 0900 PDT on May 15.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...High pressure today will lead to clear skies, and
westerly winds. A slight down valley wind this morning as the sun
rises then increasing winds in the afternoon after 1200.
Overnight, the high pressure will weaken as a cooler front
approaches from the northwest. Will see an inversion form after
2200 today which could limit mixing near the surface. 10% chance
of valley fog around sunrise but will quickly burn off after.
This front will not necessarily be impactful wind wise, but will
be some rain associated.. Rain will be minimal though and will
likely remain concentrated to the east at slightly higher
elevations.


.REST OF TODAY...

Sky/weather.........Mostly sunny.
CWR.................0 percent.
LAL.................1.
Max temperature.....Around 67.
Min humidity........60 percent.
Wind (20 ft)........
 Slope/valley.......Northwest winds 5 to 8 mph with gusts up to 17 mph.
 Ridgetop...........West winds 6 to 8 mph with gusts up to 16 mph.
Mixing height.......5100 ft AGL.
Transport winds.....North around 8 mph.
Haines Index........4 (low).
Haines Index (Mid)..5 (moderate due to increased instability).

.TONIGHT...

Sky/weather.........Mostly clear becoming partly cloudy after 0300.
CWR.................0 percent.
LAL.................1.
Min temperature.....Around 45.
Max humidity........96 percent.
Wind (20 ft)........
 Slope/valley.......Northwest winds 5 to 7 mph in the evening
                    becoming light downslope.
 Ridgetop...........North winds 5 to 7 mph.
Mixing height.......100 ft AGL.
Transport winds.....Northwest around 7 mph.
Haines Index........4 (low).
Haines Index (Mid)..4 (low).

.THURSDAY...

Sky/weather.........Partly cloudy then becoming sunny.
CWR.................0 percent.
LAL.................1.
Max temperature.....Around 63.
Min humidity........61 percent.
Wind (20 ft)........
 Slope/valley.......Light winds becoming northwest 5 to 6 mph in
                    the afternoon.
 Ridgetop...........Northwest winds 5 to 8 mph with gusts up to 16
mph on west facing slopes in the afternoon.
Mixing height.......3200 ft AGL.
Transport winds.....Northwest around 7 mph.
Haines Index........4 (low).
Haines Index (Mid)..4 (low).

$$
Forecaster...Muessle
Requested by...Matthew Wittry
Type of request...PRESCRIBED
.TAG 2414217.0/PQR
.DELDT 05/15/24
.FormatterVersion 2.0.0
.EMAIL matthew.wittry@usda.gov