Alert archive / Minnesota / Storm Warnings in 2020

Storm Warning 1, NWS Duluth, MN

December 23, 2020

NWS Duluth, MN issued this storm warning at Dec 23, 2020, 3:27 PM CST. It was in force for 13 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Dec 23, 2020, 3:27 PM CST (21:27 UTC)
Expired: Dec 24, 2020, 4:17 AM CST
In force: 13 hr
Issued by: NWS Duluth, MN

What forecasters said that day

The local office's own words before this storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Duluth, MN wrote its last area forecast discussion before this storm warning went out at Dec 23, 11:57 AM CST, 3 hours 30 minutes earlier.

Area forecast discussion, Dec 23, 11:57 AM CST, 3 hours 30 minutes before

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Hazardous weather outlook, Dec 23, 5:22 AM CST, 10 hours 5 minutes before

Hazardous Weather Outlook
National Weather Service Duluth MN
522 AM CST Wed Dec 23 2020

MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-241130-
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-
522 AM CST Wed Dec 23 2020

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

.DAY ONE...Today and Tonight

A wintry mix of snow and freezing rain will spread into the area
this morning and early afternoon. The wintry mix will quickly
switch over to all snow and become heavy at times during the day
today. Snow should end Wednesday night for most areas with
lake effect snow continuing for the South Shore overnight. The
heaviest snowfall rates will be found today, producing snowfall
amounts of more than 6 inches over a large portion of the
Northland. Strong northwest winds developing this morning will
remain strong over much of northern Minnesota into this evening
before diminishing overnight. These winds will lead to blowing and
drifting snow this afternoon and tonight. Bitterly cold wind chill
values are expected overnight tonight.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Snow will come to an end for most of the area Thursday morning,
but lake effect snow is expected to continuing for the South
Shore Thursday and Thursday night. Additional snowfall amounts of
up to 6 inches are possible by Friday morning for the Penokee
Range of northern Iron County. Dangerous wind chills are also
expected Thursday morning, and again Thursday night and Friday
morning.

Lake Effect snow may affect the South Shore of Lake Superior
Friday night and Saturday night.

.SPOTTER INFORMATION STATEMENT...

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

LSZ121-140>148-241130-
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-
522 AM CST Wed Dec 23 2020

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

.DAY ONE...Today and Tonight

Strong southeast to east winds over the lake this morning has
caused waves of 3 to 5 feet along parts of the North Shore. These
winds and waves are expected to diminish by mid morning. A Small
Craft Advisory remains in effect for parts of the North Shore
this morning.

Winds will increase once again out of the northwest this
afternoon. Gale-force winds are expected this afternoon into early
Thursday morning with a few storm-force gusts possible as well.
These winds and building waves are likely to cause hazardous
conditions over the nearshore waters. A Gale Warning and Freezing
Spray warning has been issued for this threat. Please see the
latest Marine Weather Message for additional information.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

The probability for widespread hazardous weather is low.

LE

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

In the hours before

Local storm report, Dec 23, 10:59 AM CST, 4 hours 28 minutes before

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Local storm report, Dec 23, 12:56 PM CST, 2 hours 31 minutes before

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Local storm report, Dec 23, 1:13 PM CST, 2 hours 14 minutes before

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Local storm report, Dec 23, 1:24 PM CST, 2 hours 3 minutes before

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The office that day

Everything else NWS Duluth, MN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 23, 3:17 AM CST	Winter Weather Advisory	DLH	Aitkin, Carlton, Itasca, Pine, Saint Louis	25 hr
Dec 23, 4:04 AM CST	Gale Warning	DLH		29 hr
Dec 23, 4:04 AM CST	Heavy Freezing Spray Warning	DLH		41 hr
Dec 23, 9:58 AM CST	Blizzard Warning	DLH	Aitkin, Carlton, Cass, Cook, Crow Wing, Lake and 2 more	18 hr

Nearby

Storm Warnings in Minnesota, 2020 Every storm warning in 2020

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.