* WHAT...Blizzard conditions expected at or above elevations greater
than 2500 ft. Total snow accumulations between 3 and 12 inches
with locally higher amounts over the highest peaks. Snow totals of
3 to 7 inches through the Cascade Passes. Winds gusting as high as
50 mph.
* WHERE...West Slopes North Cascades and Passes, West Slopes North
Central Cascades and Passes, and West Slopes South Central
Cascades and Passes.
* WHEN...Until 10 AM PST Wednesday.
* IMPACTS...Travel could be very difficult to impossible. Gusty
winds could bring down tree branches.
* ADDITIONAL DETAILS...Strong east winds with snow levels 2500 to
3000 feet in the Cascade Passes tonight into Wednesday morning.
The greatest reductions in visibility will likely occur near the
Cascade Crest.
* WHAT...Large waves of 20 to 24 feet expected in the surf zone.
* WHERE...North Coast and Central Coast zones.
* WHEN...From 7 PM this evening to 4 PM PST Wednesday.
* IMPACTS...Large waves may wash over beaches, jetties, and other
structures unexpectedly. People can be swept off rocks and
jetties and drown wile observing high surf. Localized beach
erosion is possible.
* WHAT...Minor coastal flooding possible. Inundation of around 2
feet above ground level is possible along shorelines and low-
lying coastal areas.
* WHERE...San Juan County and Western Whatcom County zones.
* WHEN...From 7 AM to 1 PM PST Wednesday.
* IMPACTS...Minor coastal flooding due to tidal overflow is
expected around high tide. This may lead to flooding of
parking lots, parks, and roads, with only isolated road
closures expected.
* ADDITIONAL DETAILS...High tide will occur around 10 AM PST
Wednesday morning.
* WHAT...Large waves and hazardous surf conditions. Breakers 21
to 26 feet.
* WHERE...North and Central Coast of Oregon, and South
Washington Coast.
* WHEN...From 7 PM this evening to 4 PM PST Wednesday.
* IMPACTS...Destructive waves may wash over beaches, jetties,
and other structures unexpectedly. People can be swept off
rocks and jetties and drown while observing high surf. Minor
beach erosion may damage coastal properties and buildings.
Higher than normal water run-up is expected on beaches and
low-lying shoreline.
* WHAT...Snow expected above 4000 ft. Total snow accumulations
between 6 and 8 inches. Winds gusting as high as 45 mph.
* WHERE...Northwest Blue Mountains.
* WHEN...From 10 PM this evening to 10 AM PST Wednesday.
* IMPACTS...Travel could be difficult due to periods of moderate to
heavy snow. Gusty winds could bring down tree branches.
* WHAT...Heavy snow expected. Total snow accumulations of 6 to 16
inches. Winds gusting as high as 40 mph.
* WHERE...Lower Slopes of the Eastern Washington Cascades Crest.
* WHEN...Until 10 AM PST Wednesday.
* IMPACTS...Heavy snowfall and very low visibility will create
extremely dangerous driving conditions. Widespread blowing snow
could significantly reduce visibility. Gusty winds could bring
down tree branches.
* ADDITIONAL DETAILS...Significantly lowered visibilities in
stronger winds will be possible.
* WHAT...Blizzard conditions expected above 2000 feet. Total snow
accumulations between 8 and 20 inches. Winds gusting as high as 60
mph.
* WHERE...Upper Slopes of the Eastern Washington Cascades Crest.
* WHEN...Until 10 AM PST Wednesday.
* IMPACTS...Visibilities may drop below 1/4 mile due to falling and
blowing snow. Whiteout conditions are expected and will make
travel treacherous and potentially life-threatening.
* WHAT...Wet snow expected. Total snow accumulations 2 to 4 inches,
locally 6-8 across the higher terrain. Winds gusting as high as 35
mph.
* WHERE...Kittitas Valley.
* WHEN...Until 10 AM PST Wednesday.
* IMPACTS...Periods of moderate and heavy snow will combine with low
visibilities to create difficult driving conditions. The hazardous
conditions could impact the Tuesday evening and Wednesday morning
commutes.
* WHAT...South to Southeast winds 30 to 40 mph with gusts up to 60
mph expected.
* WHERE...Foothills of the Blue Mountains of Washington.
* WHEN...Until 10 AM PST Wednesday.
* IMPACTS...Damaging winds will blow down trees and power lines.
Widespread power outages are expected. Travel will be difficult,
especially for high profile vehicles.
* WHAT...Snow. Additional snow accumulations at pass level of 8 to
12 inches through Wednesday morning. Winds gusting as high as 55
mph Tuesday evening and overnight.
* WHERE...South Washington Cascades and the Northern and Central
Cascades of Oregon.
* WHEN...Until 10 AM PST Wednesday.
* IMPACTS...Travel could be very difficult at times. Strong winds
could cause damage to trees and power lines. Blowing snow could
significantly reduce visibility at times.
* ADDITIONAL DETAILS...Snow levels around 2000-3000 feet this
afternoon will rise to 3500-4000 feet by Tuesday evening. Highest
accumulations expected above 4000 feet.
* WHAT...Southeast winds 25 to 35 mph with gusts up to 60 mph.
* WHERE...South Washington Coast.
* WHEN...Until 4 AM PST Wednesday.
* IMPACTS...Damaging winds will blow down trees and power lines.
Widespread power outages are expected. Travel will be difficult,
especially for high profile vehicles.
* ADDITIONAL DETAILS...Strongest gusts expected on beaches and
headlands.
* WHAT...South to southeast winds 20 to 30 mph with gusts up to 45
mph expected.
* WHERE...Greater Portland/Vancouver Metro, Central and Southern
Willamette Valley, and Lower Columbia River and Cowlitz River
Valleys.
* WHEN...Until 4 AM PST Wednesday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* WHAT...Flooding caused by excessive rainfall continues to be
possible.
* WHERE...A portion of northwest Washington, including the following
county, Mason.
* WHEN...From late tonight through late Friday night.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
* ADDITIONAL DETAILS...
- While two to three inches of precipitation in the Olympics
will force sharp rises on the Skokomish River with flooding
possible, relatively low snow levels will diminish the chance
of flooding for Wednesday and it is looking less likely. The
next storm Friday will be much warmer but less precipitation.
Melting snow will contribute to runoff resulting in another
potential for flooding.
- http://www.weather.gov/safety/flood
* WHAT...Large waves of 20 to 24 feet expected in the surf zone.
* WHERE...North Coast and Central Coast zones.
* WHEN...From 7 PM this evening to 4 PM PST Wednesday.
* IMPACTS...Large waves may wash over beaches, jetties, and other
structures unexpectedly. People can be swept off rocks and
jetties and drown wile observing high surf. Localized beach
erosion is possible.
* WHAT...East to southeast winds 25 to 40 mph with gusts up to 65
mph expected.
* WHERE...Central Coast, North Coast, Western Strait of Juan De
Fuca, Bellevue and Vicinity, and East Puget Sound Lowlands.
* WHEN...From 2 PM this afternoon to 4 AM PST Wednesday.
* IMPACTS...Damaging winds will blow down trees and power lines.
Widespread power outages are expected. Travel will be difficult,
especially for high profile vehicles.
* WHAT...Southeast winds 15 to 30 mph with gusts up to 50 mph
expected.
* WHERE...Portions of northwest and west central Washington.
* WHEN...From 2 PM this afternoon to 4 AM PST Wednesday.
* IMPACTS...Gusty winds could blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* WHAT...Snow expected at or above elevations greater than 3000 ft.
Total snow accumulations up to 12 to 24 inches with locally higher
amounts over the highest peaks. Blizzard-like conditions are
possible at times due to winds gusting as high as 50 mph.
* WHERE...Olympics.
* WHEN...From 4 PM this afternoon to 4 PM PST Wednesday.
* IMPACTS...Travel could be very difficult to impossible. Strong
winds could cause extensive damage to trees and power lines.
* WHAT...Blizzard conditions expected at or above elevations greater
than 2500 ft. Total snow accumulations between 4 and 12 inches,
with locally higher amounts over the highest peaks. Winds gusting
as high as 60 mph.
* WHERE...West Slopes North Cascades and Passes, West Slopes North
Central Cascades and Passes, and West Slopes South Central
Cascades and Passes.
* WHEN...From 4 PM this afternoon to 10 AM PST Wednesday.
* IMPACTS...Travel could be very difficult to impossible. Strong
winds could cause extensive damage to trees and power lines.
* ADDITIONAL DETAILS...Strong east winds with snow levels 2500 to
3000 feet in the Cascade Passes tonight into Wednesday morning.
The greatest reductions in visibility will likely occur near the
Cascade Crest.
Precipitation in the south slopes of the Olympics tonight into
Wednesday could push the already running high Skokomish River over
flood stage.
* WHAT...Flooding caused by excessive rainfall continues to be
possible.
* WHERE...A portion of northwest Washington, including the following
county, Mason.
* WHEN...From late tonight through late Wednesday night.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
* ADDITIONAL DETAILS...
- Two to three inches of rain in the Olympics will force sharp
rises on the Skokomish River with flooding possible.
Relatively low snow levels may diminish the chance of
flooding.
- http://www.weather.gov/safety/flood
* WHAT...Large waves and hazardous surf conditions. Breakers 21 to
26 feet.
* WHERE...North and Central Coast of Oregon, and South
Washington Coast.
* WHEN...From 7 PM this evening to 4 PM PST Wednesday.
* IMPACTS...Destructive waves may wash over beaches, jetties, and
other structures unexpectedly. People can be swept off rocks and
jetties and drown while observing high surf. Minor beach erosion
may damage coastal properties and buildings. Higher than normal
water run-up is expected on beaches and low-lying shoreline.
