377
FNUS76 KPQR 201226
FWSPQR

Spot Forecast for Sandstone Fire...USFS
National Weather Service Portland OR
526 AM PDT Fri Sep 20 2024

Forecast is based on forecast start time of 0500 PDT on September 20.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...High pressure will maintain dry weather with seasonal
temperatures and humidity through Saturday. Moderate onshore flow
with breezy west to northwest winds over the higher terrain. Wind
ease later today into tonight. Next front will bring chance of
showers on Sunday.


.TODAY...
Sky/weather.........Mostly cloudy, becoming mostly sunny by afternoon.
CWR.................0 percent.
LAL.................1.
Max temperature.....55-59.
Min humidity........50-55 percent.
Wind (20 ft)........
 Slope/valley.......Northwest 3-6 mph.
 Ridgetop...........Northwest 7-11 mph with gusts 20 mph, easing to
                    5-9 mph later this afternoon.
Mixing height.......3500 ft AGL.
Transport winds.....Northwest 10 mph.
Haines Index........2 (very low).
Haines Index (Mid)..3 (very low).


.TONIGHT...
Sky/weather.........Clear.
CWR.................0 percent.
LAL.................1.
Min temperature.....40-45.
Max humidity........75-90 percent, lowest on high ridges.
Wind (20 ft)........
 Slope/valley.......Light drainage after dark.
 Ridgetop...........North to northwest 4-8 mph in the evening,
                    then easing. After midnight, north to
                    northeast 2-4 mph.
Haines Index........2 (very low).


.SATURDAY...
Sky/weather.........Mostly sunny.
CWR.................0 percent.
LAL.................1.
Max temperature.....62-65.
Min humidity........35-45 percent.
Wind (20 ft)........
 Slope/valley.......Variable 2-4 mph.
 Ridgetop...........North to northeast 2-5 mph, becoming north 3-6 mph
                    by late morning.
Mixing height.......4000 ft AGL.
Transport winds.....North 10 mph.
Haines Index........2 (very low).
Haines Index (Mid)..5 (moderate).


$$
Forecaster...Rockey
Requested by...Carson Kerr IC
Type of request...WILDFIRE
.TAG 2422454.4/PQR
.DELDT 09/20/24
.FormatterVersion 2.0.0
.EMAIL carson.kerr@usda.gov