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Fire weather planning forecast for Western Washington
National Weather Service, Seattle, WA
Issued at:
7:00 AM PDT Mon Oct 13 2008
current warnings/watches... None.
. Discussion... Rain will increase across the region today... With a
cold front arriving this afternoon and evening. Post frontal showers
and onshore flow will develop tonight with a Puget Sound convergence
zone. Somewhat drier conditions are expected Tuesday and Wednesday
with weak high pressure over the area. Westerly flow aloft will
bring more systems into the region later in the week.
Forecast for 20 foot wind speed (valleys and ridge tops) are 10
minute averages reflecting raws winds.
western Washington Fire weather zones 658-659
area 5...
North Cascades National Park-Mt Rainier National Park-Mt
Baker/Snoqualmie National Forest-Gifford Pinchot National Forest
7:00 AM PDT Mon Oct 13 2008
. Today...
Sky/Weather:......... Cloudy. Rain likely in the morning... Then
showers in the afternoon.
chance of precip....90%.
Max temperature.....45-55.
Min humidity........61-76 percent.
20-foot winds.......
Valleys/lwr slopes... Southwest winds 10 to 15 mph.
Ridges/upper slopes.... Breezy. West winds 20 to 25 mph.
snow level..........8000 feet.
Mixing height.......600 ft agl increasing to 2800 ft agl in the
afternoon.
Transport winds..... Southwest around 10 mph increasing to around 20
mph in the afternoon.
. Tonight...
Sky/Weather:......... Cloudy. Showers in the evening... Then chance of
showers after midnight.
chance of precip....80%.
Min temperature.....29-39.
Max humidity........82-97 percent.
20-foot winds.......
Valleys/lwr slopes... West winds 10 to 15 mph.
Ridges/upper slopes.... Breezy. West winds 20 to 25 mph.
snow level..........6500 feet.
Mixing height.......2100-2800 ft agl.
Transport winds..... West 20 to 25 mph.
. Tuesday...
Sky/Weather:......... Mostly cloudy. Chance of showers in the
morning.
chance of precip....20%.
Max temperature.....39-49.
Min humidity........64-79 percent.
20-foot winds.......
Valleys/lwr slopes... West winds 5 to 10 mph.
Ridges/upper slopes.... West winds around 15 mph decreasing to
around 5 mph in the afternoon.
snow level..........4000 feet.
Mixing height.......2100-3100 ft agl.
Transport winds..... West 10 to 15 mph.
. Extended...
. Wednesday... Mostly cloudy. Lows in the lower 30s. Highs in the
lower 40s. Freezing level 5000 feet. South winds 5 to 15 mph.
. Thursday... Mostly cloudy with chance of rain and snow. Lows in the
mid 30s. Highs in the mid 40s. Snow level 6000 feet. South winds 5
to 15 mph.
. Friday... Rain likely. Lows in the upper 30s. Highs in the upper
40s. Snow level 6000 feet. South winds 5 to 15 mph.
. Saturday... Showers likely. Lows in the upper 30s. Highs in the
upper 40s. Snow level 4500 feet.
. Sunday... Rain and snow likely. Lows in the mid 30s. Highs in the
mid 40s. Snow level 4500 feet.
8 to 14 day outlook... For the period October 20-26 calls for above
normal temperatures and precipitation.