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Portland Metro, WA-Vancouver Area

 

 

Weather Alert
Wind Advisory

*NOAA Issue Date: 12/8/2016 05:35:00 AM Wind Advisory remains in effect for the greater Portland and Vancouver metro area until 4 PM PST this afternoon ... A Wind Advisory remains in effect until 4 PM PST this afternoon. * East metro and in the west hills: east winds 30 to 40 MPH with gusts to 55 MPH. * Elsewhere in the metro area: east winds 20 to 25 MPH with gusts 35 to 45 MPH. * Timing: strongest winds likely to be this morning. * Wind chill: mainly in the teens and 20s. * Impacts: tree damage and Power outages have already been reported. The winds may make travel difficult at times ... Particularly on north-south bridges such as the interstate bridge along interstate 5 and the Glenn Jackson bridge along interstate 205. Precautionary/preparedness actions... A Wind Advisory is issued when sustained winds are forecast to be 31 to 39 MPH OR gusts will range between 45 and 57 MPH. Winds of these magnitudes may cause minor property damage without extra precautions. Motorists in high profile vehicles should use caution until the winds subside.

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North Cascades

 

 

Weather Alert
Winter Storm Warning

*NOAA Issue Date: 12/8/2016 05:22:00 AM Significant winter weather expected over much of southwest Washington and northwest Oregon Thursday and Thursday night ... . A strong winter storm will bring mixed precipitation across much of southwest Washington and northwest Oregon today and tonight. Significant impacts spread north over the area today ... Continuing in the northern areas tonight ... And the Columbia river gorge into Friday. This is the strongest storm of this type in quite a while. ... Winter Storm Warning remains in effect for the north Oregon Cascades until 4 AM PST Friday ... A winter Storm Warning for snow and ice remains in effect until 4 AM PST Friday. * Timing Snow will develop mid to late morning ... Changing to sleet or freezing rain beginning late in the afternoon. Near the Cascade crest and passes ... Snow will persist into the evening hours. Precipitation should change to rain below 4500 feet by sunrise Friday. * Snow accumulations ... 8 to 16 inches ... Heaviest near Mount Hood. * Ice accumulations Up to one quarter inch ... Mainly in protected Cascade valleys away from the crest. * Snow levels Snow levels will rise to around 4500 feet this evening. * Impacts Travel will be very difficult as roads become snow covered and icy ... Especially across the passes. Precautionary/preparedness actions... A winter Storm Warning means significant amounts of snow ... Sleet ... And ice are expected or occurring. Strong winds are also possible. This will make travel very hazardous or impossible.

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Northwest Coast Range, Lower Columbia, Portland Metro, North Cascade Foothills, WA-Willapa Hills, WA-Lower Columbia & I-5 Cowlitz Co., WA-Vancouver Area, WA-South Cascade Foothills

 

 

Weather Alert
Winter Storm Warning

*NOAA Issue Date: 12/8/2016 05:22:00 AM Significant winter weather expected over much of southwest Washington and northwest Oregon Thursday and Thursday night ... . A strong winter storm will bring mixed precipitation across much of southwest Washington and northwest Oregon today and tonight. Significant impacts spread north over the area today ... Continuing in the northern areas tonight ... And the Columbia river gorge into Friday. This is the strongest storm of this type in quite a while. ... Winter Storm Warning remains in effect for the coast range of northwest Oregon ... The lower Columbia of Oregon and i-5 corridor in Cowlitz county ... The greater Portland-Vancouver metro area ... The north Oregon and south Washington Cascade foothills ... And the Willapa hills from 8 AM this morning to midnight PST tonight ... A winter Storm Warning for snow and freezing rain remains in effect from 8 AM this morning to midnight PST tonight. * Timing Snow will begin mid to late morning continuing through much of the day for inland areas. The coast range will start to change to freezing rain in the early afternoon and in the inland areas 4 to 6 PM. Freezing rain will then continue inland until midnight ... Especially near the Gorge. * Snow accumulations Generally 2 to 4 inches. However ... Areas near the Gorge ... The coast range ... And western Tualatin Valley could stay snow long enough for accumulations to reach 4 to 7 inches. * Ice accumulations One tenth to one quarter inch ... Likely heaviest near the Gorge. * Wind Strong east winds locally gusting 40 to 50 MPH across the eastern Portland and Vancouver metro area will lead to areas of blowing snow ... As well as cold wind chills. * Impacts Travel will be difficult ... Especially from this afternoon through evening. Some Power outages are likely across the area due to the snow and ice accumulation combined with the wind. Precautionary/preparedness actions... A winter Storm Warning means significant amounts of snow ... Sleet ... And ice are expected or occurring. Strong winds are also possible. This will make travel very hazardous or impossible.

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North Coast, WA-South Coast

 

 

Weather Alert
Winter Storm Warning

*NOAA Issue Date: 12/8/2016 05:22:00 AM Significant winter weather expected over much of southwest Washington and northwest Oregon Thursday and Thursday night ... . A strong winter storm will bring mixed precipitation across much of southwest Washington and northwest Oregon today and tonight. Significant impacts spread north over the area today ... Continuing in the northern areas tonight ... And the Columbia river gorge into Friday. This is the strongest storm of this type in quite a while. ... Winter Storm Warning remains in effect for the north Oregon coast and south Washington coast from 8 AM this morning to 8 PM PST this evening ... A winter Storm Warning for snow and freezing rain remains in effect from 8 AM this morning to 8 PM PST this evening. * Timing A mixture of snow ... Sleet and freezing rain will begin late this morning and continue into early evening. * Snow accumulations Snow and sleet accumulations are expected to be relatively light. The best chance for an inch of snow will be north toward Astoria and Long Beach. * Ice accumulations Up to a quarter inch of ice is possible ... Especially well inland. * Impacts Areas inland more than a couple miles will be affected the most. Travel will be difficult as roads become icy. Some Power disruptions are possible. A winter Storm Warning means significant amounts of snow ... Sleet ... And ice are expected or occurring. This will make travel very hazardous or impossible. &&

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Lane Co. Cascades

 

 

Weather Alert
Winter Storm Warning

*NOAA Issue Date: 12/8/2016 05:22:00 AM Significant winter weather expected over much of southwest Washington and northwest Oregon Thursday and Thursday night ... . A strong winter storm will bring mixed precipitation across much of southwest Washington and northwest Oregon today and tonight. Significant impacts spread north over the area today ... Continuing in the northern areas tonight ... And the Columbia river gorge into Friday. This is the strongest storm of this type in quite a while. ... Winter Storm Warning remains in effect for the Cascades in Lane county until 6 PM PST this evening ... A Winter Storm Warning for snow and ice remains in effect until 6 PM PST this evening. * Timing Snow and sleet will mix with freezing rain by midday except near the Cascade crest and passes. Snow will persist near the crest and passes through the afternoon and mix with pockets of freezing rain early in the evening. * Snow accumulations ... 8 to 14 inches near the crest and passes. Lesser accumulations elsewhere ... 3 to 7 inches. * Ice accumulations Generally one to two tenths of an inch of ice ... Though some protected Cascade valleys and passes may see as much as one half inch of ice. * Snow levels Rising to 6000 feet or higher by late Thursday afternoon. * Impacts Travel will become very difficult Thursday as roads become snow covered or icy ... Especially across Willamette Pass. Precautionary/preparedness actions... A winter Storm Warning means significant amounts of snow ... Sleet ... And ice are expected or occurring. Strong winds are also possible. This will make travel very hazardous or impossible.

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Central Willamette Valley

 

 

Weather Alert
Winter Storm Warning

*NOAA Issue Date: 12/8/2016 05:22:00 AM Significant winter weather expected over much of southwest Washington and northwest Oregon Thursday and Thursday night ... . A strong winter storm will bring mixed precipitation across much of southwest Washington and northwest Oregon today and tonight. Significant impacts spread north over the area today ... Continuing in the northern areas tonight ... And the Columbia river gorge into Friday. This is the strongest storm of this type in quite a while. ... Winter Storm Warning remains in effect for the central Willamette Valley until 4 PM PST this afternoon ... A winter Storm Warning for snow and freezing rain remains in effect until 4 PM PST this afternoon. * Timing Beginning around sunrise and continuing through most of the afternoon. Precipitation should turn to mainly freezing rain between noon and 2 PM. * Snow accumulations Generally 1 to 2 inches ... Though accumulations of 2 to 5 inches will be possible for locations closer to the coast range such as Newberg ... Dallas ... And McMinnville. * Ice accumulations Up to a quarter inch of ice accumulation is possible. * Impacts Travel will be difficult. Some Power disruptions are possible. Precautionary/preparedness actions... A winter Storm Warning means significant amounts of snow ... Sleet ... And ice are expected or occurring. Strong winds are also possible. This will make travel very hazardous or impossible.

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West Coast Range, South Willamette Valley, Lane Co. Cascade Foothills

 

 

Weather Alert
Winter Storm Warning

*NOAA Issue Date: 12/8/2016 05:22:00 AM Significant winter weather expected over much of southwest Washington and northwest Oregon Thursday and Thursday night ... . A strong winter storm will bring mixed precipitation across much of southwest Washington and northwest Oregon today and tonight. Significant impacts spread north over the area today ... Continuing in the northern areas tonight ... And the Columbia river gorge into Friday. This is the strongest storm of this type in quite a while. ... Winter Storm Warning remains in effect for the central coast range of western Oregon ... South Willamette Valley ... And Cascade foothills in Lane county until 2 PM PST this afternoon ... A winter Storm Warning for snow and freezing rain remains in effect until 2 PM PST this afternoon. * Timing Beginning just before sunrise today and continuing into mid afternoon. Precipitation should mainly be freezing rain by around 10 AM. * Snow accumulations ... 1 to 3 inches of snow is possible in the foothills and coast range ... Light accumulations of a trace to less than an inch in the south Willamette Valley. * Ice accumulations Up to one quarter of an inch of ice is possible ... Perhaps lasting into the early afternoon. * Impacts Travel will be difficult as some brief snow accumulations change to sleet and then freezing rain. Roads will become snow and ice covered and slick. Some Power disruptions are possible. Precautionary/preparedness actions... A winter Storm Warning means significant amounts of snow ... Sleet ... And ice are expected or occurring. Strong winds are also possible. This will make travel very hazardous or impossible.

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Central Coast

 

 

Weather Alert
Winter Weather Advisory

*NOAA Issue Date: 12/8/2016 05:22:00 AM Significant winter weather expected over much of southwest Washington and northwest Oregon Thursday and Thursday night ... . A strong winter storm will bring mixed precipitation across much of southwest Washington and northwest Oregon today and tonight. Significant impacts spread north over the area today ... Continuing in the northern areas tonight ... And the Columbia river gorge into Friday. This is the strongest storm of this type in quite a while. ... Winter Weather Advisory remains in effect for the central Oregon coast until 1 PM PST this afternoon ... A Winter Weather Advisory for freezing rain remains in effect until 1 PM PST this afternoon. * Timing Freezing rain ... Possibly mixed with sleet or a little snow will continue as mostly freezing rain into the early afternoon. * Snow accumulations Less than an inch. * Ice accumulations Up to two tenths of an inch of ice. * Impacts Areas inland more than a couple miles will be affected the most. Travel will be difficult at times as roads become icy. Precautionary/preparedness actions... A Winter Weather Advisory means that periods of snow ... Sleet ... Or freezing rain will cause travel difficulties. Be prepared for slippery roads and limited visibilities ... And use caution while driving.

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