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South Colby Warnings, Watches and Advisories

Winter Storm Warning

Winter Storm Warning issued February 27 at 4:04AM PST until February 29 at 4:00PM PST by NWS Pendleton OR

* WHAT...Heavy snow expected above 4000 feet. Total snow accumulations of 8 to 19 inches. Winds gusting as high as 60 mph. * WHERE...In Oregon, Northern Blue Mountains of Oregon. In Washington, Northwest Blue Mountains. * WHEN...From 10 PM this evening to 4 PM PST Thursday. * IMPACTS...Travel could be very difficult to impossible. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening commute. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Periods of heavy snow will impact the northern Blues Tuesday night into Wednesday morning, and again late Wednesday evening through Thursday. Strong gusty winds will also produce low visibilities at times late Wednesday through Thursday.

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Area
Northern Blue Mountains of Oregon; Northwest Blue Mountains

Winter Storm Warning

Winter Storm Warning issued February 27 at 4:04AM PST until February 29 at 4:00PM PST by NWS Pendleton OR

* WHAT...Heavy snow expected. Total snow accumulations of 12 to 22 inches. Winds gusting as high as 55 mph. * WHERE...Upper Slopes of the Eastern Washington Cascades Crest. * WHEN...From 4 PM this afternoon to 4 PM PST Thursday. * IMPACTS...Travel could be very difficult to impossible. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening commute. Strong winds could cause tree damage. * ADDITIONAL DETAILS...Periods of heavy snow will impact the Upper East Slopes of the Washington Cascades Tuesday evening into Wednesday morning, and again late Wednesday evening through Thursday.

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Area
Upper Slopes of the Eastern Washington Cascades Crest

Winter Weather Advisory

Winter Weather Advisory issued February 27 at 3:59AM PST until February 28 at 10:00AM PST by NWS Spokane WA

* WHAT...Snow expected. Total snow accumulations of 2 to 6 inches. Winds gusting as high as 40 mph. * WHERE...In Idaho, Coeur d'Alene Area and Idaho Palouse. In Washington, Northeast Mountains. * WHEN...From 7 PM this evening to 10 AM PST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. * ADDITIONAL DETAILS...Snow will transition to rain Wednesday morning that could lead to slush on roadways.

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Area
Coeur d'Alene Area; Idaho Palouse; Northeast Mountains

Winter Weather Advisory

Winter Weather Advisory issued February 27 at 3:59AM PST until February 28 at 10:00AM PST by NWS Spokane WA

* WHAT...Snow expected. Total snow accumulations of up to 3 inches. Winds gusting as high as 40 mph. Highest snow totals will be along the Washington/Idaho border and the higher hills. * WHERE...Washington Palouse and Spokane Area. * WHEN...From 7 PM this evening to 10 AM PST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. * ADDITIONAL DETAILS...Snow will transition to rain Wednesday morning that could lead to slush on roadways.

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Area
Washington Palouse; Spokane Area

Winter Storm Watch

The Winter Storm Watch has been replaced. Please see the latest information from NWS Spokane WA on this developing situation.

The Winter Storm Watch has been replaced. Please see the latest information from NWS Spokane WA on this developing situation.

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Area
Western Chelan County

Winter Storm Warning

Winter Storm Warning issued February 27 at 3:59AM PST until February 29 at 4:00PM PST by NWS Spokane WA

* WHAT...Heavy snow expected. Total snow accumulations above 4000 feet of 1 to 2 feet. Total snow accumulations below 4000 feet of a trace to 4 inches. Winds gusting as high as 50 mph. * WHERE...Central Chelan County and Western Okanogan County. * WHEN...From 4 PM this afternoon to 4 PM PST Thursday. * IMPACTS...Travel could be very difficult to impossible. Strong winds could cause damage to trees and isolated power outages. * ADDITIONAL DETAILS...Snowfall rates of one inch per hour or more will likely occur. Heavy snowfall coupled with gusty winds could create white-out conditons at times.

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Area
Central Chelan County; Western Okanogan County

Winter Storm Warning

Winter Storm Warning issued February 27 at 3:59AM PST until February 29 at 4:00PM PST by NWS Spokane WA

* WHAT...Heavy snow expected. Total snow accumulations above 4000 feet of 2 to 3 feet. Total snow accumulations below 4000 feet of 2 to 4 inches. Winds gusting as high as 50 mph. * WHERE...Western Chelan County. * WHEN...From 4 PM this afternoon to 4 PM PST Thursday. * IMPACTS...Motorists should be prepared for winter driving conditions especially over the Cascade Passes. Strong winds could cause damage to trees and isolated power outages. * ADDITIONAL DETAILS...Snowfall rates of one inch per hour or more will likely occur at Stevens Pass. Heavy snowfall coupled with gusty winds could create white-out conditons at times.

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Area
Western Chelan County

Winter Weather Advisory

Winter Weather Advisory issued February 27 at 3:42AM PST until February 27 at 9:00AM PST by NWS Seattle WA

* WHAT...Snow. Additional snow accumulations of up to one inch. * WHERE...Everett and vicinity, including Stanwood, Marysville, and Mountlake Terrace and Admiralty Inlet Area, including Port Townsend, Whidbey Island, and Camano Island. * WHEN...Until 9 AM PST this morning. * IMPACTS...Plan on slippery road conditions. * ADDITIONAL DETAILS...A persistent convergence zone has caused snowfall between Port Townsend and Gold Bar, with spotter reports of snow accumulations up to 3 inches across Whidbey Island and reports of 4 inches across Everett as of 3 AM. Temperatures will continue to drop this morning and will bottom out at or below freezing, which may cause travel impacts during the morning commute due to snow and ice.

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Area
Everett and Vicinity; Admiralty Inlet Area

Winter Storm Watch

Winter Storm Watch issued February 27 at 3:42AM PST until February 29 at 10:00PM PST by NWS Seattle WA

* WHAT...Heavy snow possible. Total snow accumulations of up to 46 inches possible. Winds could gust as high as 40 mph. * WHERE...Olympic mountains and valleys, including Hurricane Ridge, Amanda Park, and Quinault. * WHEN...From this afternoon through Thursday evening. * IMPACTS...Travel could be very difficult.

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Area
Olympics

Winter Storm Watch

Winter Storm Watch issued February 27 at 3:42AM PST until February 29 at 10:00PM PST by NWS Seattle WA

Snowfall over the Cascades early this morning is lessening. Therefore, the existing Winter Storm Warning will be allowed to expire. Another strong system will bring in another round of heavy mountain snow this afternoon through Thursday evening. ...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS AFTERNOON THROUGH THURSDAY EVENING... * WHAT...Heavy snow possible. Total snow accumulations of up to 2 to 4 feet possible. Winds could gust as high as 45 mph. * WHERE...Cascade mountains and valleys of Whatcom and Skagit Counties, including Maple Falls, the Mount Baker Ski Area, Newhalem, Lyman, and Concrete, Cascade mountains and valleys of Snohomish and King Counties, including Darrington, Index, Skykomish, Stevens Pass, and Snoqualmie Pass and Cascade mountains and valleys of Pierce and Lewis Counties, including the Crystal Mountain Ski Area, Paradise on Mount Rainier, Ashford, Randle, and Packwood. * WHEN...From this afternoon through Thursday evening. * IMPACTS...Travel could be very difficult.

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Area
West Slopes North Cascades and Passes; West Slopes North Central Cascades and Passes; West Slopes South Central Cascades and Passes

Winter Weather Advisory

Winter Weather Advisory issued February 27 at 2:43AM PST until February 27 at 7:00AM PST by NWS Portland OR

* WHAT...Snow above 1000 feet. Additional snow accumulations of up to one inch. * WHERE...Willapa Hills. * WHEN...Until 7 AM PST this morning. * IMPACTS...Plan on slippery road conditions.

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Area
Willapa Hills

Winter Weather Advisory

Winter Weather Advisory issued February 27 at 2:43AM PST until February 27 at 7:00AM PST by NWS Portland OR

* WHAT...For the Winter Weather Advisory above 1000 feet, snow. Additional snow accumulations of up to two inches. For the Winter Storm Watch above 1500 feet, heavy snow possible. Total snow accumulations of 4 to 12 inches, except 10 to 24 inches above 2500 feet. Winds could gust as high as 50 mph. * WHERE...In Oregon, Northern Oregon Cascade Foothills, Northern Oregon Cascades, Cascade Foothills in Lane County and Cascades in Lane County. In Washington, South Washington Cascades and South Washington Cascade Foothills. * WHEN...For the Winter Weather Advisory, until 7 AM PST this morning. For the Winter Storm Watch, from Wednesday afternoon through late Thursday night. * IMPACTS...Travel could be very difficult. Patchy blowing snow could significantly reduce visibility. Gusty winds could bring down tree branches.

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Area
Northern Oregon Cascade Foothills; Northern Oregon Cascades; Cascade Foothills in Lane County; Cascades in Lane County; South Washington Cascades; South Washington Cascade Foothills

Winter Storm Watch

Winter Storm Watch issued February 27 at 2:43AM PST until March 1 at 4:00AM PST by NWS Portland OR

* WHAT...For the Winter Weather Advisory above 1000 feet, snow. Additional snow accumulations of up to two inches. For the Winter Storm Watch above 1500 feet, heavy snow possible. Total snow accumulations of 4 to 12 inches, except 10 to 24 inches above 2500 feet. Winds could gust as high as 50 mph. * WHERE...In Oregon, Northern Oregon Cascade Foothills, Northern Oregon Cascades, Cascade Foothills in Lane County and Cascades in Lane County. In Washington, South Washington Cascades and South Washington Cascade Foothills. * WHEN...For the Winter Weather Advisory, until 7 AM PST this morning. For the Winter Storm Watch, from Wednesday afternoon through late Thursday night. * IMPACTS...Travel could be very difficult. Patchy blowing snow could significantly reduce visibility. Gusty winds could bring down tree branches.

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Area
Northern Oregon Cascade Foothills; Northern Oregon Cascades; Cascade Foothills in Lane County; Cascades in Lane County; South Washington Cascades; South Washington Cascade Foothills

Hydrologic Outlook

Hydrologic Outlook issued February 26 at 1:35PM PST by NWS Seattle WA

ESFSEW A strong frontal system will move across south-central British Columbia Tuesday night through Wednesday night bringing another round of moderate to heavy rainfall to western Washington. Storm total rainfall amounts of 3 to 5 inches are possible across the Olympics and Cascades with 2 to 3 inches possible across the lowlands. Snow levels will briefly rise from below 1000 feet on Tuesday to just above 4000 feet on Wednesday, which will contribute to greater runoff and snowmelt contributions, particularly over the Olympics and central Cascades. This will lead to rapid rises in river and streams across southwestern Washington, especially through the Skokomish, Chehalis, Skookumchuck, and Newaukum River basins. At this time, the Skokomish River near Potlatch is the only river forecast to enter flood stage, though there is a 35% chance for the Newaukum River near Chehalis to enter flood stage Thursday morning.

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Area
Grays Harbor, WA; Lewis, WA; Mason, WA; Pierce, WA; Thurston, WA
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Currently

Fair 26°F
30.01in
Barometer
100%
Humidity
North 0.0mph
Wind
Fair

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