Aggregator

* WHAT...Visibility a quarter mile or less in dense fog. * WHERE...Eastern Columbia River Gorge of Oregon and Washington, and Kittitas Valley. * WHEN...Until 1 PM PST this afternoon. * IMPACTS...Low visibility could make driving conditions hazardous.

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Tualatin Valley and Western Willamette Valley, North and Central Coast Range Valleys of Oregon, and Lower Columbia River. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous.

Patchy dense fog has developed in the Kittitas and Yakima Valleys this morning and will affect portions of Interstate 82 and Interstate 90. Visibilities of less than one half mile can be expected in places. Motorists should be prepared for sudden changes in visibility. If you encounter dense fog, slow down and use low beam headlights.

...Observed flooding changed from Minor to Moderate severity for the following rivers in Washington... Skokomish River At Potlatch affecting Mason County. .Moderate flooding is expected for the next several hours before the river levels begin to lower, but will remain in minor flood stage. Additional rounds of precipitation in the coming days will keep the river in minor flood stage. * WHAT...Moderate flooding is occurring and minor flooding is forecast. * WHERE...Skokomish River at Potlatch. * WHEN...Until further notice. * IMPACTS...At 17.5 feet, the Skokomish River will cause moderate flooding, with deep and quick flood waters inundating some residential areas, many roads, and much of the farm land in the Skokomish Valley. Inundated roads include the Skokomish Valley road, Bourgault Road West, Purdy Cutoff Road, and Highway 106. * ADDITIONAL DETAILS... - At 3:30 AM PST Monday the stage was 17.6 feet. - Flood stage is 16.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 3:30 AM PST Monday was 17.6 feet. - Forecast...The river is expected to fall below flood stage late this evening and continue falling to 16.4 feet late tonight. - Flood History...This crest compares to a previous crest of 17.5 feet on 12/20/1994. - 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...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...South winds 25 to 35 mph with gusts up to 55 mph expected, mainly south of La Grande. * WHERE...Grande Ronde Valley. * 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...South winds 30 to 40 mph with gusts 55 to 65 mph expected for the base of the northern Blue Mountains of Oregon. * WHERE...Foothills of the Northern Blue Mountains of Oregon. * WHEN...From 10 PM this evening to 7 AM PST Tuesday. * 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 will be 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 45 to 50 mph expected, particularly at the base of the Blue Mountains. * WHERE...Foothills of the Southern Blue Mountains of Oregon. * 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...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...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...South winds 25 to 35 mph with gusts up to 55 mph expected. * WHERE...This includes the Summer Lake area and the mountains across Lake County and eastern Klamath County, and Modoc County. * WHEN...From 7 PM this evening to 4 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...For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. For the Wind Advisory, southeast winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...For the Dense Fog Advisory, Rogue and Applegate valleys, including Phoenix, Medford, White City, Central Point, Rogue River, Jacksonville, Ruch and Applegate. For the Wind Advisory, southern Rogue Valley, including the city of Ashland, Talent and Phoenix. * WHEN...For the Dense Fog Advisory, until 10 AM PST this morning. For the Wind Advisory, from 1 PM this afternoon to 8 PM PST this evening. * IMPACTS...Low visibility could make driving conditions hazardous this morning. Gusty winds will blow around unsecured objects this afternoon and evening. Tree limbs could be blown down and a few power outages may result.

* WHAT...For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. For the Wind Advisory, southeast winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...For the Dense Fog Advisory, Rogue and Applegate valleys, including Phoenix, Medford, White City, Central Point, Rogue River, Jacksonville, Ruch and Applegate. For the Wind Advisory, southern Rogue Valley, including the city of Ashland, Talent and Phoenix. * WHEN...For the Dense Fog Advisory, until 10 AM PST this morning. For the Wind Advisory, from 1 PM this afternoon to 8 PM PST this evening. * IMPACTS...Low visibility could make driving conditions hazardous this morning. Gusty winds will blow around unsecured objects this afternoon and evening. Tree limbs could be blown down and a few power outages may result.

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Central Douglas County and Eastern Curry County and Josephine County, including I-5, Highways 199, 138, 38 and 42 as well as the cities of Grants Pass, Cave Junction, Canyonville, Roseburg, Sutherlin and Elkton. * WHEN...Until 10 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous.

* WHAT...Large breaking waves of 18 to 22 feet expected in the surf zone. * WHERE...North Coast and Central Coast zones. * WHEN...From 5 AM early this morning to 9 PM PST this evening. * 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 on Monday morning are expected to be of a longer period with a dominant period of 20 to 22 seconds. This may enhance the risk for beach erosion and infrastructure damage on west or southwest facing beaches.

* WHAT...Dangerously large breaking waves of 28 to 31 ft. * WHERE...The beaches and shorelines of Curry, Coos, and Douglas counties. * WHEN...Until 4 AM PST Tuesday. * 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...The highest surf is expected through this afternoon. Conditions are expected to slowly improve on Tuesday, but another round of dangerous surf conditions can be expected late Wednesday (Christmas Day) through Thursday, if not longer. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

* WHAT...Southeast winds 25 to 40 mph with gusts of 45 to 65 mph possible for the base of the northern Blue Mountains of Oregon. * WHERE...Foothills of the Northern Blue Mountains of Oregon. * WHEN...From Monday afternoon through Tuesday 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.

...The Flood Warning continues for the following rivers in Washington... Skokomish River At Potlatch affecting Mason County. .The Skokomish River will continue to rise tonight with minor flooding forecast. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Skokomish River at Potlatch. * WHEN...Until further notice. * 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 6:30 PM PST Sunday the stage was 16.8 feet. - Flood stage is 16.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 6:30 PM PST Sunday was 16.8 feet. - Forecast...The river is expected to rise to 17.4 feet late this evening. The river will gradually recede on Monday. - Flood History...This crest compares to a previous crest of 17.4 feet on 11/19/2012. - http://www.weather.gov/safety/flood

* 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...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.