Aggregator

* WHAT...For the Wind Advisory, southeast winds 15 to 30 mph with gusts up to 55 mph expected. For the High Wind Watch, south winds 20 to 35 mph with gusts up to 60 mph possible. * WHERE...Admiralty Inlet Area, San Juan County, Western Skagit County, and Western Whatcom County. * WHEN...For the Wind Advisory, from 7 AM to 10 PM PST Wednesday. For the High Wind Watch, 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.

* WHAT...For the Wind Advisory, southeast winds 15 to 25 mph with gusts up to 50 mph expected. For the High Wind Watch, south winds 20 to 40 mph with gusts up to 60 mph possible. * WHERE...North Coast. * WHEN...For the Wind Advisory, from 4 AM to 4 PM PST Wednesday. For the High Wind Watch, 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.

ESFSEW An atmospheric river remains on track to bring significant rainfall to the Olympic Peninsula Wednesday into Thursday. Widespread rainfall totals of 3 to 5 inches are expected in the mountains, with locally over 6 inches over the highest peaks. Snow levels will increase from 3,000 feet up to around 4,000 to 5,000 feet during this time frame, with the lower snow levels over the Olympic Mountain Peaks. An extended wet period remains on track 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...For the High Surf Advisory, large waves and hazardous surf conditions. Breakers up to 25 to 30 feet. For the Coastal Flood Advisory, tidal overflow flooding expected. * WHERE...South Washington Coast. * WHEN...For the High Surf Advisory, from 4 PM Wednesday to 10 PM PST Thursday. For the Coastal Flood Advisory, from 6 AM to noon PST Thursday. * IMPACTS...Minor flooding, up to one foot above ground level, during high tides is expected in the low lying areas near bays, sloughs, and the lower reaches of the coastal rivers. 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. Toke Point is forecast to reach 11.5 feet at 9 am on Thursday.

* WHAT...For the High Surf Advisory, large waves and hazardous surf conditions. Breakers up to 25 to 30 feet. For the Coastal Flood Advisory, tidal overflow flooding expected. * WHERE...South Washington Coast. * WHEN...For the High Surf Advisory, from 4 PM Wednesday to 10 PM PST Thursday. For the Coastal Flood Advisory, from 6 AM to noon PST Thursday. * IMPACTS...Minor flooding, up to one foot above ground level, during high tides is expected in the low lying areas near bays, sloughs, and the lower reaches of the coastal rivers. 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. Toke Point is forecast to reach 11.5 feet at 9 am on Thursday.

* WHAT...Large waves and hazardous surf conditions. Breakers up to 25 to 30 feet. * WHERE...North and Central Coast of Oregon. * 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...South winds 25 to 35 mph with gusts up to 50 mph expected for the base of the northern Blue Mountains of Oregon and Washington. * WHERE...In Oregon, Foothills of the Northern Blue Mountains of Oregon. In Washington, Foothills of the Blue Mountains of Washington. * WHEN...From 10 PM Wednesday to 10 AM PST Thursday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

* WHAT...South winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Foothills of the Southern Blue Mountains of Oregon. * WHEN...From 10 PM Wednesday to 10 AM PST Thursday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

* WHAT...South winds 25 to 35 mph with gusts up to 50 mph expected for Ladd and Pyles Canyons. * WHERE...Grande Ronde Valley. * WHEN...From 10 PM Wednesday to 10 AM PST Thursday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

* WHAT...South winds 25 to 35 mph with gusts up to 50 mph expected for the base of the northern Blue Mountains of Oregon and Washington. * WHERE...In Oregon, Foothills of the Northern Blue Mountains of Oregon. In Washington, Foothills of the Blue Mountains of Washington. * WHEN...From 10 PM Wednesday to 10 AM PST Thursday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

* WHAT...Heavy snow possible. Total snow accumulations of 1 to 5 inches except 12 to 18 inches over the mountains possible. Lowest snow amounts in the valleys near Baker City and Richland. * WHERE...In Idaho, Upper Weiser River. In Oregon, Baker County. * WHEN...From Wednesday evening through Friday morning. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult to impossible. The hazardous conditions could impact the Thursday morning and evening commutes.

...MODERATE TO HEAVY SNOW CHRISTMAS AFTERNOON THROUGH THURSDAY ACROSS THE CASCADES... .A winter system will move across the region during the afternoon into evening on Christmas and bring widespread mountain snow to the Cascades through Thursday. Snow levels will rise through Thursday, with much of this activity tapering off or changing to rain by the evening Thursday. * WHAT...Heavy snow expected for elevations above 3000 feet. Total snow accumulations between 6 and 18 inches. * WHERE...Upper Slopes of the Eastern Washington Cascades Crest. * WHEN...From 1 PM Wednesday to 10 PM PST Thursday. * IMPACTS...Heavy snowfall and very low visibility will create extremely dangerous driving conditions.

...MODERATE TO HEAVY SNOW CHRISTMAS AFTERNOON THROUGH THURSDAY ACROSS THE CASCADES... .A winter system will move across the region during the afternoon into evening on Christmas and bring widespread mountain snow to the Cascades through Thursday. Snow levels will rise through Thursday, with much of this activity tapering off or changing to rain by the evening Thursday. * WHAT...Heavy snow expected for elevations above 3000 feet. Total snow accumulations up to 6 to 12 inches. * WHERE...Lower Slopes of the Eastern Washington Cascades Crest. * WHEN...From 4 PM Wednesday to 10 AM PST Thursday. * IMPACTS...Periods of moderate and heavy snow will combine with low visibilities to create difficult driving conditions.

...MODERATE TO HEAVY SNOW CHRISTMAS AFTERNOON THROUGH THURSDAY ACROSS THE CASCADES... .A winter system will move across the region during the afternoon into evening on Christmas and bring widespread mountain snow to the Cascades through Thursday. Snow levels will rise through Thursday, with much of this activity tapering off or changing to rain by the evening Thursday. * WHAT...Wet snow expected for elevations above 4000 feet. Total snow accumulations of 4 to 8 inches. Winds gusting as high as 45 mph. * WHERE...East Slopes of the Oregon Cascades. * WHEN...From 1 PM Wednesday to 10 PM PST Thursday. * IMPACTS...Periods of moderate and heavy snow will combine with low visibilities to create difficult driving conditions. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Snow levels are expected to bounce between 4000-5000 feet, with the passes across the Cascades right around 4500 feet. If snow levels drop or remain lower, snow amounts will increase notably across the passes.

* WHAT...Large breaking waves of 17 to 24 feet expected in the surf zone Wednesday night through Thursday. * WHERE...North Coast and Central Coast zones. * WHEN...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.

Snowfall is expected through the next few days as a number of wet systems move through the Pacific Northwest. These wet systems are associated with warmer air which will cause snow levels to be elevated to near pass level of the Cascades. While snow is expected, uncertainty is high for snow accumulations greater than 10 inches. * WHAT...Snow expected above 4500 feet. From 4500 feet to 5000 feet, total snow accumulation up to 6 inches. Above 5000 feet, total snow accumulations of 18 to 20 inches. Winds gusting as high as 45 mph. * WHERE...South Washington Cascades and the Northern and Central Cascades of Oregon. * WHEN...From 1 PM Wednesday to 10 PM PST Thursday. * IMPACTS...Travel could be very difficult to impossible. Gusty winds could bring down tree branches and reduce visibility with falling snow. * ADDITIONAL DETAILS...Snow levels are hovering right around 4500 to 5000 feet which is the elevation of the passes within the Cascades. Because of this, if snow levels drop below pass level, snow accumulation will be greater. There is less than a 10% chance of seeing greater than 12 inches of snow at pass level.

Snowfall is expected through the next few days as a number of wet systems move through the Pacific Northwest. These wet systems are associated with warmer air which will cause snow levels to be elevated to near pass level of the Cascades. While snow is expected, uncertainty is high for snow accumulations greater than 10 inches. * WHAT...Snow expected above 4500 feet. From 4500 feet to 5000 feet, total snow accumulation up to 6 inches. Above 5000 feet, total snow accumulations of 18 to 20 inches. Winds gusting as high as 45 mph. * WHERE...South Washington Cascades and the Northern and Central Cascades of Oregon. * WHEN...From 1 PM Wednesday to 10 PM PST Thursday. * IMPACTS...Travel could be very difficult to impossible. Gusty winds could bring down tree branches and reduce visibility with falling snow. * ADDITIONAL DETAILS...Snow levels are hovering right around 4500 to 5000 feet which is the elevation of the passes within the Cascades. Because of this, if snow levels drop below pass level, snow accumulation will be greater. There is less than a 10% chance of seeing greater than 12 inches of snow at pass level.

* WHAT...Snow expected. Total snow accumulations between 2 and 26 inches. Winds gusting as high as 70 mph. * WHERE...The southern Oregon Cascades north of Highway 140 including Crater Lake National Park, highways 62, 138, and 51 at Willamette Pass. Marble Mountains including Sawyer Bar Road near Mount Etna, and the pass at Snowmans Hill Summit. * WHEN...From Wednesday late afternoon through Friday morning. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Wednesday evening and Thursday morning commutes. Very strong winds could cause extensive damage to trees and power lines.

* WHAT...Dangerously large breaking waves of 30 to 35 ft. * WHERE...The beaches and shorelines of Curry, Coos, and Douglas counties. * WHEN...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...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...Southwest winds 30 to 40 mph with gusts up to 65 mph expected. * WHERE...This includes the Summer Lake area and Highway 31, the mountains across Lake County and eastern Klamath County, and Modoc County. * WHEN...From 10 PM Wednesday to 10 AM PST Thursday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles.