Hazard Report Provided By forecast.weather.gov

Hydrologic Outlook
WAC033-057-061-073-181200-

Hydrologic Outlook
National Weather Service Seattle WA
244 PM PST Tue Dec 17 2024

...THREAT OF RIVER FLOODING TODAY THROUGH THURSDAY FOR PORTIONS OF
NORTHWEST WASHINGTON...

An atmospheric river impacting the region tonight into Wednesday
will bring potentially significant rainfall that could drive some
rivers in western Washington into flood stage.

There remains uncertainty regarding river flooding mid-week, but the
latest rainfall forecast shows 3 to 5 inches of rain over the North
Cascades with snow levels as high as 7000 to 8000 feet tonight
before briefly lowering back towards 2000 to 3000 feet Wednesday.

Forecast models show potential for additional precipitation entering
western Washington towards the end of the week, with higher snow
levels, which could cause additional river flooding impacts.

Please monitor the latest river forecasts from the National Weather
Service for additional information.

$$

14

URGENT - WINTER WEATHER MESSAGE
National Weather Service Seattle WA
926 PM PST Tue Dec 17 2024

WAZ567>569-181200-
/O.CON.KSEW.WW.Y.0025.000000T0000Z-241218T1200Z/
West Slopes North Cascades and Passes-West Slopes North Central
Cascades and Passes-West Slopes South Central Cascades and Passes-
Including the cities of Index, Ashford, Deming, Baring, Randle,
Packwood, Hamilton, Stevens Pass, Crystal Mountain Ski Area,
Lyman, Snoqualmie Pass, Concrete, Paradise, Darrington, Newhalem,
Maple Falls, Skykomish, Mount Baker Ski Area, Morton, and
Longmire
926 PM PST Tue Dec 17 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST
WEDNESDAY AT OR ABOVE ELEVATIONS GREATER THAN 2500 FT...

* WHAT...Mixed precipitation, including freezing rain, at or above
  elevations greater than 2500 ft. Additional snow accumulations up
  to two inches and ice accumulations of up to 0.10 of an inch
  especially at Stevens Pass. 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.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Prepare for possible
power outages.

&&

$$

JD

Hazard Report Provided By forecast.weather.gov