Hazardous Weather Outlook
Issued by NWS Duluth, MN

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FLUS43 KDLH 042233 AAC
HWODLH

Hazardous Weather Outlook...UPDATED
National Weather Service Duluth MN
433 PM CST Mon Dec 4 2017

MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-051330-
Koochiching-North St. Louis-Northern Cook/Northern Lake-
North Itasca-Central St. Louis-Southern Lake/North Shore-
Southern Cook/North Shore-North Cass-South Itasca-South Cass-
Crow Wing-Northern Aitkin-South Aitkin-Carlton/South St. Louis-
Pine-Douglas-Bayfield-Ashland-Iron-Burnett-Washburn-Sawyer-Price-
433 PM CST Mon Dec 4 2017

This Hazardous Weather Outlook is for portions of northeast
Minnesota and northwest Wisconsin.

.DAY ONE...Tonight

A major winter storm will affect the Northland tonight and
Tuesday morning. Widespread precipitation will rapidly change to
snow from west to east this evening as much colder air rapidly
surges into the Northland from the west. Moderate to heavy snow
accumulations are expected with amounts ranging from 6 to 12
inches across parts of far northern Minnesota, to a few inches
across parts of northwest Wisconsin. The combination of moderate
to heavy snow, northwest winds gusting between 35 and 45 mph by
tonight, and temperatures falling rapidly into the teens will
result in dangerous winter driving conditions developing in many
areas, and near blizzard conditions in many open areas with low
visibility in blowing and drifting snow.

Please refer to the latest winter weather products and the latest
forecast for details on winter storm warnings and winter weather
advisories that are in effect through Tuesday morning.

A lakeshore flood advisory is also in effect for Bayfield County
tonight and Tuesday morning where very strong onshore winds and
wave heights approaching 10 feet will combine with high water
levels on Lake Superior to result in flooding and damage to
lakeshore infrastructure.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Strong west winds on Lake Superior may cause flooding and damage
to lakeshore infrastructure along the Bayfield county coastline
through the day on Tuesday, mainly from Port Wing to Sand Bay. See
the latest Lakeshore Flood Advisory for more details.

Lake effect snowfall will impact the south shore through the week
and into the weekend, with the most intense snow falling Tuesday
night into Wednesday when 2 to 6 inches of snowfall is possible
across the snow belt region, mainly impacting Iron County. See the
Winter Weather Advisory in effect for more details.

Much colder air will move in mid to late week. Wind chill values may
fall to 15 to 25 degrees below zero Wednesday night and Friday
night.

.SPOTTER INFORMATION STATEMENT...

Snow spotters are requested to report their snowfall measurements
to the National Weather Service tonight and Tuesday.

$$

LSZ121-140>148-051330-
Bayfield to Oak Point WI-Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN-
Duluth MN to Port Wing WI-Port Wing to Sand Island WI-
Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI-
433 PM CST Mon Dec 4 2017

This Hazardous Weather Outlook is for portions of the Nearshore
waters of western Lake Superior.

.DAY ONE...Tonight

An intense low pressure system will move across western Lake
Superior tonight, bringing gale and storm force west to northwest
winds to all of western Lake Superior tonight into Tuesday. Very strong
west winds will develop tonight resulting in gale force gusts of
35 to 45 knots. Storm force gusts to near 50 knots are possible
for portions of the south shore, especially from Port Wing to Sand
Island. Please see the latest marine weather message and nearshore
marine foreast for additional details on advisories and warnings
in effect.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Strong west winds will persist through Tuesday, then gradually
diminish Tuesday night. The combination of strong winds and much colder
air may lead to a risk for freezing spray on Tuesday and Tuesday
night, especially for any vessels sailing westward into the
wind.

$$

More information may be obtained at the following web address:
http://www.weather.gov/duluth (all lower case)



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