Weather Alerts for Snohomish CountyIssued by the National Weather Service |
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| SNOHOMISH COUNTY | ||
Areas Affected: Cascades of Whatcom and Skagit Counties - Cascades of Snohomish and Northern King Counties - Cascades of Southern King County - Cascades of Pierce and Lewis Counties - Olympics |
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| Effective: Mon, 12/15 1:27am | Updated: Mon, 12/15 3:15am | Urgency: Future |
| Expires: Mon, 12/15 12:00pm | Severity: Severe | Certainty: Possible |
Details:
...HEAVY SNOW POSSIBLE IN THE CASCADES AND OLYMPICS TUESDAY NIGHT AND WEDNESDAY... * WHAT...Heavy snow possible. Total snow accumulations of one and a half to three feet. Winds could gust as high as 70 mph. * WHERE...Cascades of Snohomish and Northern King Counties, Cascades of Whatcom and Skagit Counties, Olympics, Cascades of Pierce and Lewis Counties, and Cascades of Southern King County. * WHEN...From Tuesday evening through Wednesday evening. * IMPACTS...Travel could be very difficult to impossible. Very strong winds could cause extensive tree damage. Information: Monitor the latest forecasts for updates on this situation. |
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| SNOHOMISH COUNTY | ||
Areas Affected: San Juan County - Lowlands of Western Whatcom County - Lowlands of Western Skagit and Northwestern Snohomish Counties - Downtown Everett / Marysville Area - Shoreline / Lynnwood / South Everett Area - Eastside - City of Seattle - Lowlands of Pierce and Southern King Counties - Olympia and Southern Puget Sound - Lowlands of Lewis and Southern Thurston Counties - Middle Chehalis River Valley - Willapa and Black Hills - Southern Hood Canal - Northern Hood Canal - Eastern Kitsap County - Port Townsend Area - Western Strait of Juan de Fuca - Foothills of the Western and Southern Olympic Peninsula - Northern Washington Coast - Grays Harbor County Coast - Lower Chehalis River Valley - Island County |
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| Effective: Mon, 12/15 12:45am | Updated: Mon, 12/15 3:15am | Urgency: Expected |
| Expires: Mon, 12/15 11:45am | Severity: Moderate | Certainty: Likely |
Details:
* WHAT...For the Wind Advisory, southwest winds 20 to 30 mph with gusts up to 55 mph. For the High Wind Watch, southwest winds 25 to 45 mph with gusts 55 to 65 mph possible. * WHERE...Portions of northwest and west central Washington. * WHEN...For the Wind Advisory, until 10 PM PST this evening. For the High Wind Watch, from Tuesday evening through Wednesday 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. Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Due to saturated grounds from previous heavy rain, expect more widespread impacts with these winds. Information: Monitor the latest forecasts and warnings for updates. Use extra caution when driving, especially if operating a high profile vehicles. Secure outdoor objects. Secure outdoor objects. |
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| SNOHOMISH COUNTY | ||
Areas Affected: Clallam, WA - Grays Harbor, WA - Jefferson, WA - King, WA - Kitsap, WA - Lewis, WA - Mason, WA - Pierce, WA - Skagit, WA - Snohomish, WA - Thurston, WA - Whatcom, WA |
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| Effective: Sun, 12/14 4:37pm | Updated: Mon, 12/15 3:15am | Urgency: Future |
| Expires: Mon, 12/15 5:45am | Severity: Severe | Certainty: Possible |
Details:
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of northwest and west central Washington, including the following counties, in northwest Washington, Clallam, Grays Harbor, Jefferson, Kitsap, Mason, Skagit and Whatcom. In west central Washington, King, Lewis, Pierce, Snohomish and Thurston. * WHEN...From Monday morning through Thursday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Storm drains and ditches may become clogged with debris. Area creeks and streams are running high and could flood with more heavy rain. * ADDITIONAL DETAILS... - A series of weather systems this week will bring another round of significant rainfall to western Washington late tonight through Wednesday. Preliminary liquid totals of 2 to 6 inches, locally higher in some spots, will cause additional sharp rises to area rivers. Urban and small stream flooding remains possible for areas with poor drainage. Very saturated soils will maintain increased risk for potential landslides and debris flows off of burn scars. - Http://www.weather.gov/safety/flood Information: You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. |
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| SNOHOMISH COUNTY | ||
Areas Affected: San Juan County - Lowlands of Western Whatcom County - Lowlands of Western Skagit and Northwestern Snohomish Counties - Downtown Everett / Marysville Area - Shoreline / Lynnwood / South Everett Area - Eastside - City of Seattle - Lowlands of Pierce and Southern King Counties - Olympia and Southern Puget Sound - Lowlands of Lewis and Southern Thurston Counties - Middle Chehalis River Valley - Willapa and Black Hills - Southern Hood Canal - Northern Hood Canal - Eastern Kitsap County - Port Townsend Area - Western Strait of Juan de Fuca - Foothills of the Western and Southern Olympic Peninsula - Northern Washington Coast - Grays Harbor County Coast - Lower Chehalis River Valley - Island County |
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| Effective: Mon, 12/15 12:45am | Updated: Mon, 12/15 3:15am | Urgency: Future |
| Expires: Mon, 12/15 11:45am | Severity: Severe | Certainty: Possible |
Details:
* WHAT...For the Wind Advisory, southwest winds 20 to 30 mph with gusts up to 55 mph. For the High Wind Watch, southwest winds 25 to 45 mph with gusts 55 to 65 mph possible. * WHERE...Portions of northwest and west central Washington. * WHEN...For the Wind Advisory, until 10 PM PST this evening. For the High Wind Watch, from Tuesday evening through Wednesday 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. Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Due to saturated grounds from previous heavy rain, expect more widespread impacts with these winds. Information: Monitor the latest forecasts and warnings for updates. Use extra caution when driving, especially if operating a high profile vehicles. Secure outdoor objects. Secure outdoor objects. |
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| SNOHOMISH COUNTY | ||
Areas Affected: Foothills and Valleys of the North Cascades - Foothills and Valleys of Snohomish and Northern King Counties - Foothills and Valleys of Central King County - Foothills and Valleys of Pierce and Southern King Counties - Foothills and Valleys of Thurston and Lewis Counties - Eastern Strait of Juan de Fuca - Lake Crescent Area Including US 101 |
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| Effective: Mon, 12/15 12:45am | Updated: Mon, 12/15 3:15am | Urgency: Future |
| Expires: Mon, 12/15 11:45am | Severity: Severe | Certainty: Possible |
Details:
* WHAT...Southwest winds 25 to 45 mph with gusts 55 to 65 mph possible. * WHERE...Eastern Strait of Juan de Fuca, Foothills and Valleys of the North Cascades, Lake Crescent Area Including US 101, Foothills and Valleys of Central King County, Foothills and Valleys of Pierce and Southern King Counties, Foothills and Valleys of Snohomish and Northern King Counties, and Foothills and Valleys of Thurston and Lewis Counties. * WHEN...From Tuesday evening through Wednesday 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. * ADDITIONAL DETAILS...Saturated soils from heavy rain ahead of the event will make it easier for these winds to create widespread impacts. Information: Monitor the latest forecasts and warnings for updates. |
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| SNOHOMISH COUNTY | ||
Areas Affected: San Juan County - Cascades of Whatcom and Skagit Counties - Cascades of Snohomish and Northern King Counties - Cascades of Southern King County - Cascades of Pierce and Lewis Counties - Foothills and Valleys of the North Cascades - Foothills and Valleys of Snohomish and Northern King Counties - Foothills and Valleys of Central King County - Foothills and Valleys of Pierce and Southern King Counties - Foothills and Valleys of Thurston and Lewis Counties - Lowlands of Western Whatcom County - Lowlands of Western Skagit and Northwestern Snohomish Counties - Downtown Everett / Marysville Area - Shoreline / Lynnwood / South Everett Area - Eastside - City of Seattle - Lowlands of Pierce and Southern King Counties - Olympia and Southern Puget Sound - Lowlands of Lewis and Southern Thurston Counties - Middle Chehalis River Valley - Willapa and Black Hills - Southern Hood Canal - Northern Hood Canal - Eastern Kitsap County - Port Townsend Area - Eastern Strait of Juan de Fuca - Western Strait of Juan de Fuca - Lake Crescent Area Including US 101 - Olympics - Foothills of the Western and Southern Olympic Peninsula - Northern Washington Coast - Grays Harbor County Coast - Lower Chehalis River Valley - Island County |
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| Effective: Sun, 12/14 10:38am | Updated: Mon, 12/15 3:15am | Urgency: Expected |
| Expires: Mon, 12/15 10:45am | Severity: Moderate | Certainty: Observed |
Details:
Rainfall from the past week has increased soil moisture to high levels across western Washington. Additional rainfall of around 2-6 inches is expected early this week. This amount of rain will put extra pressure on soil instability, leading to an increased threat of landslides and debris flows, especially from recent burned areas. This rain event could act as a trigger for new landslides. Areas most susceptible to landslides debris flows under these conditions are steep coastal bluffs, other steep hillsides or road cuts, and recent burned areas. A diminishing threat of landslides and debris flows will continue for several days after the rain ends. For more information about current conditions, visit www.weather.gov/seattle, select Hydrology, and then scroll down for the links to the landslide information pages. For more information on landslides, visit the website for the Washington State Department of Natural Resources landslide geologic hazards at: http://bit.ly/2mtA3wn |
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