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FNUS76 KPQR 232227
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Spot Forecast for Williams Mine...Forest Service
National Weather Service Portland OR
327 PM PDT Mon Sep 23 2024

Forecast is based on forecast start time of 0600 PDT on September 24.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...A weak thermal trough will bring light offshore flow
Tuesday morning. Onshore flow will return by Tuesday afternoon as
an upper level trough approaches the Pacific Northwest from the
NE Pacific. Daytime humidity will be above critical thresholds.
Tuesday night, expect very high overnight humidity recoveries. A
front will push through on Wednesday, with the highest rain chances
from 1100 through the afternoon. Expect breezier westerly winds
with the frontal passage.

.TUESDAY...

Sky/weather.........Sunny.
CWR.................1 percent.
LAL.................1.
Max temperature.....Around 72.
Min humidity........40-45 percent.
Wind (20 ft)........
 Slope/valley.......Southeast 4 to 6 mph becoming southwest
                    4 to 6 mph in the afternoon.
 Ridgetop...........Southeast 5 to 7 mph with gusts up to 11 mph
                    becoming southwest 5 to 7 mph in the afternoon.
Mixing height.......2500 ft AGL.
Transport winds.....Southeast around 9 mph.
Haines Index........2 (very low).
Haines Index (Mid)..4 (low).

.TUESDAY NIGHT...

Sky/weather.........Mostly clear. Slight chance of rain overnight.
CWR.................0 percent.
LAL.................1.
Min temperature.....Around 54.
Max humidity........80-85 percent.
Wind (20 ft)........
 Slope/valley.......Southwest 4 to 6 mph strengthening to 6 to 8 mph
                    with gusts up to 15 mph after late evening.
 Ridgetop...........Southwest 6 to 8 mph strengthening to 9 to 11 mph
                    with gusts up to 20 mph after late evening.
Mixing height.......100 ft AGL.
Transport winds.....West around 7 mph.
Haines Index........4 (low).
Haines Index (Mid)..5 (moderate).

.WEDNESDAY...

Sky/weather.........Partly cloudy then becoming mostly cloudy. Rain
                    showers likely.
CWR.................20 percent.
LAL.................1.
Max temperature.....Around 56.
Min humidity........60-65 percent.
Wind (20 ft)........
 Slope/valley.......Southwest winds 5 to 8 mph. Gusts up to 20 mph in
                    the afternoon.
 Ridgetop...........West winds 9 to 11 mph. Gusts up to 25 mph in
the afternoon.
Mixing height.......2000 ft AGL.
Transport winds.....West around 17 mph.
Haines Index........3 (very low).
Haines Index (Mid)..3 (very low).

$$
Forecaster...Alviz
Requested by...Matt Nunnelly
Type of request...WILDFIRE
.TAG 2422923.0/PQR
.DELDT 09/23/24
.FormatterVersion 2.0.0
.EMAIL matthew.nunnelly@alaska.gov