Aggregator

* WHAT...Southeast winds 25 to 40 mph with gusts up to 55 mph becoming west 25 to 45 mph with gusts to 65 mph Thursday morning. * WHERE...Central Coast and North Coast. * WHEN...From Wednesday evening through Thursday afternoon. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...This storm has the potential to produce the strongest winds of the season to date.

...MODERATE TO HEAVY SNOW ALONG THE WASHINGTON CASCADES CHRISTMAS AFTERNOON THROUGH THURSDAY... .A strong winter storm will bring moderate to heavy snow to the Washington Cascades Wednesday afternoon through Thursday afternoon. Along the east slopes of the central and southern Cascades, snow levels will increase on Thursday with precipitation changing to rain or a rain and snow mix for many areas. * WHAT...Snow expected for elevations above 3000 feet. Total snow accumulations between 5 and 10 inches. * WHERE...Upper Slopes of the Eastern Washington Cascades Crest. * WHEN...From 1 PM Wednesday to 6 PM PST Thursday. * IMPACTS...Heavy snowfall and very low visibility will create extremely dangerous driving conditions.

...MODERATE TO HEAVY SNOW ALONG THE WASHINGTON CASCADES CHRISTMAS AFTERNOON THROUGH THURSDAY... .A strong winter storm will bring moderate to heavy snow to the Washington Cascades Wednesday afternoon through Thursday afternoon. Along the east slopes of the central and southern Cascades, snow levels will increase on Thursday with precipitation changing to rain or a rain and snow mix for many areas. * WHAT...Snow expected for elevations above 3000 feet. Total snow accumulations 5 to 10 inches. * WHERE...Lower Slopes of the Eastern Washington Cascades Crest. * WHEN...From 3 PM Wednesday to 3 PM PST Thursday. * IMPACTS...Periods of moderate and heavy snow will combine with low visibilities to create difficult driving conditions.

* WHAT...South to southeast winds 30 to 40 mph with gusts 50 to 60 mph expected for the base of the northern Blue Mountains of Oregon. * WHERE...Foothills of the Northern Blue Mountains of Oregon. * WHEN...Until 7 AM PST this morning. * 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...Strong and damaging winds have been observed along Interstate 84 from Pendleton to Cabbage Hill, as well as Highway 11 from Pendleton to Milton-Freewater.

* WHAT...South winds 20 to 30 mph with gusts up to 45 mph. * WHERE...Grande Ronde Valley. * 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.

* WHAT...Large waves and hazardous surf conditions. Breakers up to 25 to 30 feet. * WHERE...North and Central Coast of Oregon, and South Washington Coast. * WHEN...From 4 PM Wednesday to 10 PM PST Thursday. * 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. * ADDITIONAL DETAILS...There is a high threat for sneaker waves.

* WHAT...Large waves and hazardous surf conditions. Breakers up to 25 to 30 feet. * WHERE...North and Central Coast of Oregon, and South Washington Coast. * WHEN...From 4 PM Wednesday to 10 PM PST Thursday. * 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. * ADDITIONAL DETAILS...There is a high threat for sneaker waves.

* WHAT...Heavy wet snow possible above 4500 feet. Total snow accumulations of 1 to 2 feet, with heaviest snowfall above 5500 feet. Winds could gust as high as 50 mph on higher exposed terrain. * WHERE...South Washington Cascades and the Northern and Central Cascades of Oregon. * WHEN...From late Wednesday afternoon through Friday morning. * IMPACTS...Travel could be difficult at times, with snow-packed roadways. * ADDITIONAL DETAILS...Two rounds of higher intensity snowfall will most likely impact the Cascades later this week. The first round will be late Wednesday afternoon through Thursday morning. A second storm system will be quick on the first storm system heels, and bring another round of heavy snowfall Thursday night into Friday. The Timberline Highway, US-20 over Santiam Pass and Highway 58 over Willamette Pass will be the roadways most heavily impacted by the snow.

* WHAT...Heavy wet snow possible above 4500 feet. Total snow accumulations of 1 to 2 feet, with heaviest snowfall above 5500 feet. Winds could gust as high as 50 mph on higher exposed terrain. * WHERE...South Washington Cascades and the Northern and Central Cascades of Oregon. * WHEN...From late Wednesday afternoon through Friday morning. * IMPACTS...Travel could be difficult at times, with snow-packed roadways. * ADDITIONAL DETAILS...Two rounds of higher intensity snowfall will most likely impact the Cascades later this week. The first round will be late Wednesday afternoon through Thursday morning. A second storm system will be quick on the first storm system heels, and bring another round of heavy snowfall Thursday night into Friday. The Timberline Highway, US-20 over Santiam Pass and Highway 58 over Willamette Pass will be the roadways most heavily impacted by the snow.

* WHAT...Heavy snow possible. Total snow accumulations of 1 to 2 feet possible. Winds could gust as high as 65 mph. * WHERE...The southern Oregon Cascades north of Highway 140 including Crater Lake National Park, Diamond Lake, Highways 62, 138, and 51 at Willamette Pass. In Siskiyou County, higher elevations including Sawyers Bar Road near Mount Etna, and the pass at Snowman Summit on Highway 89. * WHEN...From Wednesday late afternoon through Friday morning. * IMPACTS...Heavy snow will cause snow-covered, hazardous roads and reduced visibility. Travel could be very difficult to impossible. The hazardous conditions could impact the Wednesday evening and Thursday morning commutes. Strong winds could cause some blowing snow further reducing visibility and may cause damage to trees and power lines.

* WHAT...South winds 15 to 30 mph, with gusts 45 to 60 mph possible. * WHERE...Areas above 1000 feet across the North and Central Coast Range Mountains of Oregon and Willapa Hills. * WHEN...From Wednesday evening through Thursday morning. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles.

* WHAT...South to southwest winds 20 to 30 mph, with gusts up to 60 mph possible. * WHERE...South Washington and North and Central Oregon Coast. * WHEN...From Wednesday evening through Thursday morning. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles.

* WHAT...South winds 15 to 30 mph, with gusts 45 to 60 mph possible. * WHERE...Areas above 1000 feet across the North and Central Coast Range Mountains of Oregon and Willapa Hills. * WHEN...From Wednesday evening through Thursday morning. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles.

* WHAT...South to southwest winds 20 to 30 mph, with gusts up to 60 mph possible. * WHERE...South Washington and North and Central Oregon Coast. * WHEN...From Wednesday evening through Thursday morning. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles.

* 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 65 mph. * WHERE...Olympics. * WHEN...From Wednesday afternoon through Friday morning. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Visibilities may drop below 1/4 mile due to falling and blowing snow.

* 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 55 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 Wednesday afternoon through Friday morning. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Visibilities may drop below 1/4 mile 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...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...For the current High Surf Warning, dangerously large breaking waves of 24 to 29 ft through early this morning. For the next High Surf Warning, dangerously large breaking waves of 30 to 35 ft. * WHERE...The beaches and shorelines of Curry, Coos, and Douglas counties. * WHEN...For the current High Surf Warning, until 7 AM PST this morning. For the next High Surf Warning, from 4 PM Wednesday to 4 PM PST Thursday. * IMPACTS...Extremely large breaking waves will create very hazardous conditions along beaches and area shorelines. Waves will inundate beaches and surge into normally dry areas. Infrastructure damage and significant beach erosion can be expected. * ADDITIONAL DETAILS...Conditions are expected to slowly improve this morning, but another round of dangerous surf conditions can be expected late Wednesday (Christmas Day) through Thursday. Hazardous surf and beach conditions are likely to continue through much of the weekend, with improving conditions possible on Sunday. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

* WHAT...For the current High Surf Warning, dangerously large breaking waves of 24 to 29 ft through early this morning. For the next High Surf Warning, dangerously large breaking waves of 30 to 35 ft. * WHERE...The beaches and shorelines of Curry, Coos, and Douglas counties. * WHEN...For the current High Surf Warning, until 7 AM PST this morning. For the next High Surf Warning, from 4 PM Wednesday to 4 PM PST Thursday. * IMPACTS...Extremely large breaking waves will create very hazardous conditions along beaches and area shorelines. Waves will inundate beaches and surge into normally dry areas. Infrastructure damage and significant beach erosion can be expected. * ADDITIONAL DETAILS...Conditions are expected to slowly improve this morning, but another round of dangerous surf conditions can be expected late Wednesday (Christmas Day) through Thursday. Hazardous surf and beach conditions are likely to continue through much of the weekend, with improving conditions possible on Sunday. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr