WEATHER ALERT: More snow & perhaps freezing rain coming next


The National Weather Service issued a ‘Winter Weather Watch’ and ‘Winter Storm Watch’ early Sunday morning, Feb. 10, warning of more snow – perhaps 5-10 inches on Monday – as well as other inclement weather like freezing rain (anyone remember the Ice Storm of 2012?) coming.

“Snow expected late this afternoon and tonight with accumulations of 2 to 4 inches likely,” experts said.

“Heavy snow accumulations of 5 to 10 inches are possible Monday afternoon and Monday evening before precipitation possibly mixes with freezing rain, rain or sleet.”

  • The Winter Weather Advisory is in effect from 4 p.m Sunday afternoon, Feb. 10 to 4 a.m. Monday, Feb. 11.
  • The Winter Storm Watch is in effect from Monday morning through Tuesday afternoon, Feb. 12.

In the graphic below, make note of the yellow line (and notice how it’s north of our area), of which NOAA says:

“The yellow line denotes the northern boundary of a potentially hazardous mix of winter precipitation. Because some warmer air could move into the interior Monday night and Tuesday, it could mix with the cold air already in place and lead to a mix of freezing rain, snow, and sleet to areas across the interior SOUTH of the approximated yellow line in this image.”

2nd weather system arriving Monday afternoon through Tuesday will have considerably more moisture, but could pull some slightly warmer air in from the coast. This may create a potentially messy, winter weather situation. A WINTER STORM WATCH (blue shade) is in effect for nearly all of Western Washington from midday Monday through much of Tuesday. The area included within the red outlined area could receive as much as 9 to 12 inches of snow. Outside of that, much of the lowlands from Seattle northward could receive 4 to 8 inches of snow. The Olympics and Cascades could receive 1 to 3 feet of snow with this storm system. The yellow line denotes the northern boundary of a potentially hazardous mix of winter precipitation. Because some warmer air could move into the interior Monday night and Tuesday, it could mix with the cold air already in place and lead to a mix of freezing rain, snow, and sleet to areas across the interior SOUTH of the approximated yellow line in this image. This is still a developing situation and there are a host of possible outcomes. Please stay tuned to updated forecasts, watches, warnings, and advisories as they are issued. Light blue shade = winter storm watch

URGENT – WINTER WEATHER MESSAGE
National Weather Service Seattle WA
400 AM PST Sun Feb 10 2019

WAZ504-509-555-556-558-102000-
/O.NEW.KSEW.WW.Y.0015.190211T0000Z-190211T1200Z/
/O.EXT.KSEW.WS.A.0004.190211T1800Z-190213T0200Z/
Southwest Interior-Tacoma Area-East Puget Sound Lowlands-
Bellevue and Vicinity-Seattle and Vicinity-
including Lacey, Olympia, Tumwater, Yelm, Grand Mound, Rochester,
Centralia, Toledo, Tacoma, Fife, DuPont, Puyallup, Bonney Lake,
Maple Valley, Monroe, Woodinville, Arlington, Granite Falls,
Lake Stevens, Snohomish, Gold Bar, Duvall, Carnation, Fall City,
Snoqualmie, North Bend, Covington, Black Diamond, Orting,
Eatonville, Bellevue, Bothell, Kenmore, Mill Creek, Clearview,
Kirkland, Newcastle, Redmond, Sammamish, Issaquah, Seattle,
White Center, Tukwila, Renton, Burien, Des Moines, Kent,
and Federal Way
400 AM PST Sun Feb 10 2019

…WINTER WEATHER ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO
4 AM PST MONDAY…
…WINTER STORM WATCH NOW IN EFFECT FROM MONDAY MORNING THROUGH
TUESDAY AFTERNOON…

* WHAT…Snow expected late this afternoon and tonight with
accumulations of 2 to 4 inches likely. Heavy snow accumulations
of 5 to 10 inches are possible Monday afternoon and Monday
evening before precipitation possibly mixes with freezing rain,
rain or sleet.

* WHERE…Portions of west central Washington.

* WHEN…For the Winter Weather Advisory, from 4 PM this
afternoon to 4 AM PST Monday. For the Winter Storm Watch, from
Monday morning through Tuesday afternoon.

* ADDITIONAL DETAILS…Travel could be very difficult to
impossible.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving.

A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts.

For the latest road conditions in Washington state, call 5 1 1.

Here’s the latest forecast:

  • Today: Snow, mainly after 4pm. High near 33. Wind chill values between 19 and 24. South wind 10 to 14 mph. Chance of precipitation is 80%. Total daytime snow accumulation of less than one inch possible.
  • Tonight: Snow, mainly before 10pm. Low around 26. Wind chill values between 12 and 19. Southeast wind 10 to 15 mph becoming south southwest 16 to 21 mph. Winds could gust as high as 26 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
  • Monday: A chance of snow before 10am, then rain and snow, possibly mixed with freezing rain and sleet. High near 34. Wind chill values between 17 and 25. East wind around 9 mph becoming north in the afternoon. Chance of precipitation is 80%. Little or no ice accumulation expected. New snow and sleet accumulation of 1 to 3 inches possible.
  • Monday Night: Rain and snow, becoming all snow after 4am. Low around 29. Wind chill values between 19 and 24. East southeast wind 11 to 14 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
  • Tuesday: Snow showers before 10am, then rain and snow showers likely. High near 35. North wind around 7 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
  • Tuesday Night: A 50 percent chance of snow showers. Mostly cloudy, with a low around 29. New snow accumulation of around an inch possible.
  • Wednesday: A 30 percent chance of snow showers. Mostly cloudy, with a high near 34. New snow accumulation of less than a half inch possible.
  • Wednesday Night: A slight chance of snow. Mostly cloudy, with a low around 21.
  • Thursday: A chance of snow before 4pm, then a chance of rain and snow. Mostly cloudy, with a high near 37.
  • Thursday Night: A chance of rain and snow before 10pm, then a chance of snow. Cloudy, with a low around 30.
  • Friday: Rain and snow likely. Cloudy, with a high near 39.
  • Friday Night: A chance of rain and snow. Cloudy, with a low around 28.
  • Saturday: A chance of rain and snow. Cloudy, with a high near 37.


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