Hazardous Weather Outlook
Issued by NWS Duluth, MN

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

FLUS43 KDLH 041739 AAA

Hazardous Weather Outlook...UPDATED
National Weather Service Duluth MN
1139 AM CST Mon Dec 4 2017

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-
1139 AM CST Mon Dec 4 2017

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

.DAY ONE...This afternoon and Tonight

A major winter storm will affect the Northland beginning this
afternoon and persisting into Tuesday morning. Precipitation will
rapidly develop through the early afternoon and become widespread
after 3 PM. Much colder air will rapidly surge into the Northland
with strong northwest winds and rain rapidly changing to snow
from west to east late this afternoon through this evening. With
heavy snow accumulations from 6 to 12 inches across parts of
northern Minnesota.

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 by early evening, snow
and ice covered roads, 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 the threat for wave damage to
infrastructure along the shore.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Snow will taper off to snow showers and flurries Tuesday over
much of the Northland. Lake effect snow showers are forecast over
the snowbelt areas of northwest Wisconsin for the remainder of the
week. Additional snow accumulations of 4 to 8 inches are possible
from Tuesday evening through early Thursday morning over portions
of Ashland and Iron Counties in Wisconsin, with lower totals
expected elsewhere in the northern Wisconsin snowbelt.


Snow spotters are requested to report their snowfall measurements
from this afternoon through Tuesday to the National Weather Service
in Duluth.


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-
1139 AM CST Mon Dec 4 2017

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

.DAY ONE...This afternoon and 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. Winds
are expected to gust from 45 to 55 knots tonight and Tuesday
morning, with wave heights exceeding 10 feet in some areas.
Please refer to the latest marine weather message and nearshore
marine forecasts for details on gale warnings and storm warnings
that are in effect for the western Lake Superior nearshore waters.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Strong winds will continue Tuesday with widespread gales
expected. Occasional storm-force gusts to 50 knots are possible
off the tip of the Bayfield Peninsula through Tuesday morning.
Winds will gradually diminish Tuesday night. Conditions will
likely remain hazardous to smaller vessels into Wednesday.

With much colder air moving into the region Tuesday and Tuesday
night, a period of heavy freezing spray is also possible,
especially for any vessels attempting to sail west or northwest
into the wind.



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

USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.