* WHAT...For the first High Surf Advisory, large breaking waves
of 16 to 20 feet in the surf zone. For the second High Surf
Advisory, large breaking waves of 18 to 24 feet expected in
the surf zone.
* WHERE...North Coast and Central Coast zones.
* WHEN...For the first High Surf Advisory, until 1 PM PST this
afternoon. For the second High Surf Advisory, from 10 PM
Wednesday to 10 PM PST Thursday.
* IMPACTS...Large waves may wash over beaches, jetties, and
other structures unexpectedly. Localized beach erosion is
possible. People can be swept off rocks and jetties, and drown
while observing high surf.
* ADDITIONAL DETAILS...Waves just offshore will be long period
with a dominant period of 20 to 22 seconds for both advisories.
This will enhance the risk for beach erosion and infrastructure
damage on west or southwest facing beaches.
* WHAT...For the first High Surf Advisory, large breaking waves
of 16 to 20 feet in the surf zone. For the second High Surf
Advisory, large breaking waves of 18 to 24 feet expected in
the surf zone.
* WHERE...North Coast and Central Coast zones.
* WHEN...For the first High Surf Advisory, until 1 PM PST this
afternoon. For the second High Surf Advisory, from 10 PM
Wednesday to 10 PM PST Thursday.
* IMPACTS...Large waves may wash over beaches, jetties, and
other structures unexpectedly. Localized beach erosion is
possible. People can be swept off rocks and jetties, and drown
while observing high surf.
* ADDITIONAL DETAILS...Waves just offshore will be long period
with a dominant period of 20 to 22 seconds for both advisories.
This will enhance the risk for beach erosion and infrastructure
damage on west or southwest facing beaches.
* WHAT...South winds 25 to 35 mph with gusts 45 to 55 mph expected
for the base of the Blue Mountains of Washington.
* WHERE...Foothills of the Blue Mountains of Washington.
* WHEN...Until 7 AM PST this morning.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
...The Flood Warning continues for the following rivers in
Washington...
Skokomish River At Potlatch affecting Mason County.
.Minor flooding is occuring along the Skokomish River. The river
will recede below flood stage Tuesday. Rounds of precipitation in
the coming days will lead to additional flooding.
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Skokomish River at Potlatch.
* WHEN...Until tomorrow afternoon.
* IMPACTS...At 16.5 feet, the Skokomish River will cause widespread
flooding of pasture lands, with water flowing quickly over West
Bourgault Road and Skokomish Valley Road.
* ADDITIONAL DETAILS...
- At 8:30 PM PST Monday the stage was 16.9 feet.
- Flood stage is 16.5 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:30 PM PST Monday was 17.5 feet.
- Forecast...The river is expected to fall below flood stage
late Tuesday morning and remain just below flood stage for
the remainder of the day.
- http://www.weather.gov/safety/flood
* WHAT...South winds 25 to 35 mph with gusts 45 to 55 mph expected
for the base of the Blue Mountains of Washington.
* WHERE...Foothills of the Blue Mountains of Washington.
* WHEN...Until 7 AM PST Tuesday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* WHAT...Visibility of one-quarter mile or less in dense fog.
* WHERE...Kittitas Valley.
* WHEN...Until 1 AM PST Tuesday.
* IMPACTS...Low visibility could make driving conditions hazardous.
* WHAT...Heavy snow possible. Total snow accumulations between 18
and 24 inches possible above 3500 feet.
* WHERE...Stevens Pass, Stehekin, and Holden Village.
* WHEN...From Wednesday afternoon through Friday morning.
* IMPACTS...Travel could be very difficult over Stevens Pass.
* ADDITIONAL DETAILS...Expect snowfall rates around 1 inch per hour
or greater at Stevens Pass Wednesday night. For Coles Corner and
Stehekin, total snow accumulations between 5 and 12 inches.
* WHAT...Snow expected. Total snow accumulations 3 to 8 inches.
* WHERE...Conconully, Winthrop, Mazama, Twisp, Methow, and Loup Loup
Pass.
* WHEN...From 10 PM this evening to 10 AM PST Tuesday.
* IMPACTS...Travel could be very difficult. The hazardous conditions
could impact the Tuesday morning commute.
* ADDITIONAL DETAILS...Snowfall rates of 1" per hour are possible
between midnight and 5 AM tonight, especially around Mazama and
Loup Loup Pass.
ESFSEW
An atmospheric river will bring significant rainfall to the Olympic
Peninsula Wednesday into Thursday. Widespread rainfall totals of 4
to 6 inches are expected in the mountains, with locally over 6
inches over the highest peaks. Snow levels will begin around 3000 ft
during this time frame.
An extended wet period with snow levels above 4000 ft Thursday
through next weekend over the Olympics and into portions of
southwestern Washington. The area of concern for additional river
flooding impacts may expand east to include rivers in Thurston and
Lewis counties.
Please monitor the latest river forecasts from the National Weather
Service for additional information.
* WHAT...South winds 25 to 35 mph with gusts 45 to 55 mph expected
for the base of the Blue Mountains of Washington.
* WHERE...Foothills of the Blue Mountains of Washington.
* WHEN...From 10 PM this evening to 7 AM PST Tuesday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* WHAT...Visibility of one-quarter mile or less in dense fog.
* WHERE...Kittitas Valley.
* WHEN...Until 10 PM PST this evening.
* IMPACTS...Low visibility could make driving conditions hazardous.
* WHAT...Visibility as low as one-quarter mile in dense fog.
* WHERE...Lower Columbia Basin of Washington.
* WHEN...Until 10 PM PST this evening.
* IMPACTS...Low visibility could make driving conditions hazardous.
* WHAT...Visibility as low as one-quarter mile in dense fog.
* WHERE...Yakima Valley.
* WHEN...Until 10 PM PST this evening.
* IMPACTS...Low visibility could make driving conditions hazardous.
ESFPQR
A series of systems will bring an extended period of wet weather
across northwest Oregon and southwest Washington through the
weekend. This will lead to rises on rivers and creeks, beginning
Wednesday evening, Dec 25th through at least Sunday, December 29th.
There is currently a 15-30% probability that rivers west of the
Cascades reach minor flood stage over the next ten days.
Heavy rainfall may also cause ponding of water or localized urban
flooding, especially in low lying areas or other areas with poor
drainage. This also increases the potential for landslides and
debris flows.
The exact track of these upcoming storms will influence rainfall
amounts, and thus the potential for flooding. Shifts in storm track
can change the current outlook, so be sure to monitor
weather.gov/portland for the latest weather updates, as well as any
watches, warnings, or advisories that may be issued. To view the
latest river forecasts, visit water.noaa.gov/wfo/pqr.
* WHAT...Southeast winds 25 to 35 mph with gusts up to 55 mph
expected.
* WHERE...East Puget Sound Lowlands.
* WHEN...Until 2 AM PST Tuesday.
* IMPACTS...Gusty winds could blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* ADDITIONAL DETAILS...Winds will be strongest in areas near and
west of the Cascade gaps including North Bend, Enumclaw, Gold Bar,
and Covington.
* WHAT...Large breaking waves of 18 to 22 feet in the surf zone.
* WHERE...North Coast and Central Coast zones.
* WHEN...Until 1 PM PST Tuesday.
* IMPACTS...Large waves may wash over beaches, jetties, and
other structures unexpectedly. Localized beach erosion is
possible. People can be swept off rocks and jetties, and drown
while observing high surf.
* ADDITIONAL DETAILS...Waves just offshore will be long period
with a dominant period of 20 to 22 seconds. This will enhance
the risk for beach erosion and infrastructure damage on west
or southwest facing beaches.
* WHAT...Large waves and dangerous surf conditions. Breakers up
to 30 feet.
* WHERE...North and Central Coast of Oregon, and South
Washington Coast.
* WHEN...From 5 AM to 10 PM PST Monday.
* 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. Similar
wave conditions in the past have resulted in beach erosion and
damage to coastal properties and buildings. High water run-up
is expected on beaches and low- lying shoreline.
* ADDITIONAL DETAILS...There is a high threat for sneaker waves.
* WHAT...Heavy snow possible at or above elevations greater than
3500 ft. Total snow accumulations between 18 to 24 inches
possible. Winds could gust as high as 45 mph.
* WHERE...Cascades of Whatcom and Skagit Counties, including Mt.
Baker Ski Area, Cascades of King and Snohomish Counties, including
Stevens Pass, and Cascades of Pierce and Lewis Counties, including
Paradise, Crystal Mountain Ski Area, and White Pass.
* WHEN...From Wednesday afternoon through Friday morning.
* IMPACTS...Roads will likely become slick and hazardous.
Visibilities may be reduced due to falling and blowing snow.
* ADDITIONAL DETAILS...Accumulations of 6 to 12 inches will be
possible for elevations between 3000 to 3500 feet, including
Snoqualmie Pass.
* WHAT...Heavy snow possible at or above elevations greater than
4000 ft. Total snow accumulations between 18 to 24 inches
possible. Winds could gust as high as 45 mph.
* WHERE...Olympic Mountains including Hurricane Ridge.
* WHEN...From Wednesday afternoon through Friday morning.
* IMPACTS...Roads will likely become slick and hazardous.
Visibilities may be reduced due to falling and blowing snow.
* WHAT...Heavy wet snow possible above 4500 feet. Total snow
accumulations of 1-2 feet. Winds could gust as high as 45 mph.
* WHERE...South Washington Cascades and the Northern and Central
Cascades of Oregon.
* WHEN...From Wednesday afternoon through Friday morning.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Travel could be difficult and
winter travel conditions should be anticipated.
* ADDITIONAL DETAILS...Two rounds of higher intensity snowfall will
most likely impact the Cascades later this week. The first round
will most likely take place Wednesday evening into the early
morning hours on Thursday. A second storm system will be quick on
the first storm system heels, and bring another round of intense
snowfall across the Cascades Thursday night into Friday morning.
The Timberline Highway, US20 over Santiam Pass and Highway 58 over
Willamette Pass will be the roadways most heavily impacted by the
snow.
