Winter Weather Advisory issued December 18 at 3:47AM PST until December 18 at 10:00AM PST by NWS Seattle WA
* WHAT...Snow at or above elevations greater than 3500 ft. Additional snow accumulations up to 5 inches. Winds gusting as high as 45 mph. * WHERE...West Slopes North Central Cascades and Passes. * WHEN...Until 10 AM PST this morning. * IMPACTS...Travel could be very difficult. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Snow levels will fall this morning to 3500 to 4500 feet, allowing for brief snow accumulations, particularly around Stevens Pass.
Hydrologic Outlook issued December 18 at 3:36AM PST by NWS Seattle WA
ESFSEW An atmospheric river has brought 2 to 4 inches of precipitation across the Cascades of Snohomish County northwards over the last 24 hours. This has led to a rise in area rivers. However, river flooding is not expected for Whatcom, Skagit, and King Counties from this event. Although river flooding is not expected for Snohomish County, the Stillaguamish River continues to rise rapidly this morning due to 1 to 2 inches of precipitation over the last 6 hours in the Stillaguamish basin and vicinity. For this reason, the Hydrologic Outlook remains for Snohomish County. However, current river forecasts keep
Wind Advisory issued December 18 at 2:22AM PST until December 18 at 10:00AM PST by NWS Seattle WA
* WHAT...South winds 20 to 30 mph with gusts up to 55 mph will transition to west winds 15 to 30 mph with gusts up to 55 mph early this morning. * WHERE...Admiralty Inlet Area. * WHEN...Until 10 AM PST this morning. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.
Flood Warning issued December 18 at 5:02AM PST until December 20 at 4:00PM PST by NWS Seattle WA
...Forecast flooding changed from Moderate to Major severity for the following rivers in Washington... Skokomish River At Potlatch affecting Mason County. .The Skokomish River at Potlach is currently in moderate flooding. The river is expected to rise into major flooding this morning before falling tonight into Thursday. * WHAT...Moderate flooding is occurring and major flooding is forecast. * WHERE...Skokomish River at Potlatch. * WHEN...Until Friday afternoon. * IMPACTS...At 18.0 feet, the Skokomish River will cause major, near record flooding throughout the Skokomish Valley. Deep and swift flood waters will inundate residential areas, many roads including SR 106, and much of
Winter Weather Advisory issued December 17 at 2:35AM PST until December 18 at 4:00AM PST by NWS Seattle WA
* WHAT...Snow and freezing rain expected at or above elevations greater than 2500 ft. Total snow accumulations of 3 to 10 inches. Ice accumulations of up to 0.10 to 0.20 inches near and east of the crest. Winds gusting as high as 35 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 4 AM PST Wednesday. * IMPACTS...Travel could be very difficult with snow and ice on the roadway. * ADDITIONAL DETAILS...Periods of snow are expected through this afternoon, becoming steadier later this morning.
Wind Advisory issued December 17 at 12:51AM PST until December 18 at 7:00AM PST by NWS Seattle WA
* WHAT...South winds 20 to 30 mph with gusts up to 55 mph expected Tuesday afternoon into Tuesday night. West winds 15 to 30 mph with gusts up to 50 mph expected early Wednesday morning. * WHERE...Admiralty Inlet Area. * WHEN...From 1 PM this afternoon to 7 AM PST Wednesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.
Wind Advisory issued December 17 at 12:51AM PST until December 18 at 4:00AM PST by NWS Seattle WA
* WHAT...South winds 20 to 35 mph with gusts up to 55 mph expected. * WHERE...Central Coast. * WHEN...From 4 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.
Hydrologic Outlook issued December 16 at 3:41PM PST by NWS Seattle WA
ESFSEW An atmospheric river will impact the region Tuesday and Wednesday, bringing potentially significant rainfall that could drive some rivers in western Washington into flood stage. There is still a fair amount of uncertainty regarding river flooding mid-week, but the latest rainfall forecast shows 3 to 5 inches over the Olympic Peninsula with snow levels as high as 7000 to 8000 feet. The northern and central Cascades will also see heavy rainfall during this period, with up to 4 inches of liquid forecast through Wednesday. The Skokomish River is currently forecast to enter moderate flood stage by Wednesday, and other
Flood Watch issued December 16 at 3:45PM PST until December 18 at 4:00AM PST by NWS Seattle WA
* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...A portion of northwest Washington, including the following county, Mason. * WHEN...Through late Tuesday night. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Low-water crossings may be flooded. * ADDITIONAL DETAILS... - Expected rainfall of 3 to 5 inches with snow levels at 7000 to 8000 feet Tuesday and Wednesday could drive the Skokomish River above flood stage Tuesday night. - http://www.weather.gov/safety/flood
Winter Weather Advisory issued December 16 at 4:13AM PST until December 16 at 1:00PM PST by NWS Seattle WA
* WHAT...Snow at or above elevations greater than 3000 ft. Additional snow accumulations between 2 and 4 inches. * WHERE...West Slopes North Central Cascades and Passes and West Slopes South Central Cascades and Passes. * WHEN...Until 1 PM PST this afternoon. * IMPACTS...Plan on slippery road conditions.