Gale Warning 17, NWS Duluth, MN

646 
WHUS73 KDLH 060418
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
1018 PM CST Sun Dec 5 2021

LSZ121-142>148-150-061630-
/O.EXP.KDLH.SC.Y.0104.000000T0000Z-211206T0400Z/
/O.CON.KDLH.GL.W.0017.000000T0000Z-211206T2200Z/
Chequamegon Bay-Bayfield to Oak Point WI-
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-
Outer Apostle Islands Beyond 5 NM from Mainland-
1018 PM CST Sun Dec 5 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM CST MONDAY...

* WHAT...Northwest winds 25 to 35 kt with gusts up to 45 kt and 
  waves 7 to 10 ft.

* WHERE...Portions of Lake Superior. 

* WHEN...Until 4 PM CST Monday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LSZ140-141-061630-
/O.EXP.KDLH.SC.Y.0105.000000T0000Z-211206T0400Z/
/O.CON.KDLH.GL.W.0017.000000T0000Z-211206T2200Z/
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
1018 PM CST Sun Dec 5 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM CST MONDAY...

* WHAT...North winds 20 to 30 kt with gusts up to 40 kt and 
  waves 4 to 7 ft.

* WHERE...Grand Portage to Grand Marais MN and Grand Marais to 
  Taconite Harbor MN.

* WHEN...Until 4 PM CST Monday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

443 
WHUS73 KDLH 060706
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
106 AM CST Mon Dec 6 2021

LSZ140>145-061915-
/O.EXT.KDLH.GL.W.0017.000000T0000Z-211206T1000Z/
/O.NEW.KDLH.SR.W.0002.211206T1000Z-211206T2000Z/
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-
106 AM CST Mon Dec 6 2021

...GALE WARNING NOW IN EFFECT UNTIL 4 AM CST EARLY THIS MORNING...
...STORM WARNING IN EFFECT UNTIL 2 PM CST THIS AFTERNOON...

* WHAT...For the Storm Warning, northwest winds 20 to 30 kt with
  gusts up to 55 kt and waves 6 to 10 ft expected. For the Gale 
  Warning, north winds 20 to 30 kt with gusts up to 45 kt and 
  waves 4 to 7 ft.

* WHERE...Portions of Lake Superior. 

* WHEN...For the Storm Warning, until 2 PM CST this afternoon. 
  For the Gale Warning, until 4 AM CST early this morning.

* IMPACTS...Very strong winds will cause hazardous waves which 
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LSZ121-146>148-150-061915-
/O.CON.KDLH.GL.W.0017.000000T0000Z-211206T2200Z/
Chequamegon Bay-Bayfield to Oak Point WI-
Port Wing to Sand Island WI-Sand Island to Bayfield WI-
Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
106 AM CST Mon Dec 6 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM CST THIS AFTERNOON...

* WHAT...Northwest winds 25 to 35 kt with gusts up to 40 kt and 
  waves 7 to 12 ft.

* WHERE...Port Wing to Sand Island WI, Sand Island to Bayfield 
  WI, Oak Point to Saxon Harbor WI, Chequamegon Bay-Bayfield to 
  Oak Point WI and Outer Apostle Islands Beyond 5 NM from 
  Mainland.

* WHEN...Until 4 PM CST this afternoon.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

965 
WHUS73 KDLH 060839
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
239 AM CST Mon Dec 6 2021

LSZ140>142-062000-
/O.CON.KDLH.GL.W.0017.000000T0000Z-211206T1000Z/
/O.CON.KDLH.SR.W.0002.211206T1000Z-211206T2000Z/
/O.NEW.KDLH.UP.W.0001.211206T1300Z-211206T2000Z/
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
Taconite Harbor to Silver Bay Harbor MN-
239 AM CST Mon Dec 6 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM CST EARLY THIS
MORNING...
...STORM WARNING REMAINS IN EFFECT UNTIL 2 PM CST THIS
AFTERNOON...
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 7 AM THIS MORNING
TO 2 PM CST THIS AFTERNOON...

* WHAT...For the Heavy Freezing Spray Warning, heavy freezing
  spray at a rate of 2 cm per hour or greater expected, and may
  rapidly accumulate on vessels. For the Gale Warning, north winds
  20 to 30 kt with gusts up to 40 kt and waves 4 to 7 ft. For the
  Storm Warning, northwest winds 25 to 35 kt with gusts up to 55
  kt and waves 6 to 10 ft expected.

* WHERE...Grand Portage to Grand Marais MN, Grand Marais to 
  Taconite Harbor MN and Taconite Harbor to Silver Bay Harbor MN.

* WHEN...For the Heavy Freezing Spray Warning, from 7 AM this 
  morning to 2 PM CST this afternoon. For the Gale Warning, 
  until 4 AM CST early this morning. For the Storm Warning, 
  until 2 PM CST this afternoon.

* IMPACTS...Operating a vessel in heavy freezing spray is 
  hazardous. Freezing spray may render mechanical and electronic 
  components inoperative. Rapid ice accretion on decks and 
  superstructures may result in a catastrophic loss of 
  stability. Very strong winds will cause hazardous waves which 
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LSZ143>145-062000-
/O.CON.KDLH.GL.W.0017.000000T0000Z-211206T1000Z/
/O.CON.KDLH.SR.W.0002.211206T1000Z-211206T2000Z/
Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN-
Duluth MN to Port Wing WI-
239 AM CST Mon Dec 6 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM CST EARLY THIS
MORNING...
...STORM WARNING REMAINS IN EFFECT UNTIL 2 PM CST THIS
AFTERNOON...

* WHAT...For the Gale Warning, northwest winds 25 to 30 kt with
  gusts up to 45 kt and waves 3 to 6 ft. For the Storm Warning,
  northwest winds 20 to 30 kt with gusts up to 50 kt and waves 6
  to 10 ft expected.

* WHERE...Two Harbors to Duluth MN, Duluth MN to Port Wing WI 
  and Silver Bay Harbor to Two Harbors MN.

* WHEN...For the Gale Warning, until 4 AM CST early this 
  morning. For the Storm Warning, until 2 PM CST this afternoon.

* IMPACTS...Very strong winds will cause hazardous waves which 
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LSZ121-146>148-150-062045-
/O.CON.KDLH.GL.W.0017.000000T0000Z-211206T2200Z/
Chequamegon Bay-Bayfield to Oak Point WI-
Port Wing to Sand Island WI-Sand Island to Bayfield WI-
Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
239 AM CST Mon Dec 6 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM CST THIS AFTERNOON...

* WHAT...Northwest winds 25 to 35 kt with gusts up to 40 kt and 
  waves 7 to 10 ft.

* WHERE...Port Wing to Sand Island WI, Sand Island to Bayfield 
  WI, Oak Point to Saxon Harbor WI, Chequamegon Bay-Bayfield to 
  Oak Point WI and Outer Apostle Islands Beyond 5 NM from 
  Mainland.

* WHEN...Until 4 PM CST this afternoon.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

049 
WHUS73 KDLH 061607
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
1007 AM CST Mon Dec 6 2021

LSZ121-146>148-150-062200-
/O.CON.KDLH.GL.W.0017.000000T0000Z-211206T2200Z/
Chequamegon Bay-Bayfield to Oak Point WI-
Port Wing to Sand Island WI-Sand Island to Bayfield WI-
Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
1007 AM CST Mon Dec 6 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM CST THIS AFTERNOON...

* WHAT...Northwest winds 25 to 35 kt and waves 6 to 9 ft.

* WHERE...Port Wing to Sand Island WI, Sand Island to Bayfield 
  WI, Oak Point to Saxon Harbor WI, Chequamegon Bay-Bayfield to 
  Oak Point WI and Outer Apostle Islands Beyond 5 NM from 
  Mainland.

* WHEN...Until 4 PM CST this afternoon.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LSZ140>142-062000-
/O.CON.KDLH.SR.W.0002.000000T0000Z-211206T2000Z/
/O.CON.KDLH.UP.W.0001.000000T0000Z-211206T2000Z/
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
Taconite Harbor to Silver Bay Harbor MN-
1007 AM CST Mon Dec 6 2021

...STORM WARNING REMAINS IN EFFECT UNTIL 2 PM CST THIS
AFTERNOON...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 2 PM CST
THIS AFTERNOON...

* WHAT...For the Heavy Freezing Spray Warning, heavy freezing 
  spray at a rate of 2 cm per hour or greater may rapidly 
  accumulate on vessels. For the Storm Warning, northwest winds 
  20 to 30 kt with gusts up to 50 kt and waves 2 to 5 ft.

* WHERE...Taconite Harbor to Silver Bay Harbor MN, Grand Portage 
  to Grand Marais MN and Grand Marais to Taconite Harbor MN.

* WHEN...Until 2 PM CST this afternoon.

* IMPACTS...Operating a vessel in heavy freezing spray is 
  hazardous. Freezing spray may render mechanical and electronic 
  components inoperative. Rapid ice accretion on decks and 
  superstructures may result in a catastrophic loss of 
  stability. Very strong winds will cause hazardous waves which 
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LSZ143>145-062000-
/O.CON.KDLH.SR.W.0002.000000T0000Z-211206T2000Z/
Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN-
Duluth MN to Port Wing WI-
1007 AM CST Mon Dec 6 2021

...STORM WARNING REMAINS IN EFFECT UNTIL 2 PM CST THIS
AFTERNOON...

* WHAT...Northwest winds 15 to 20 kt with gusts up to 48 kt and 
  waves 2 to 5 ft.

* WHERE...Two Harbors to Duluth MN, Duluth MN to Port Wing WI 
  and Silver Bay Harbor to Two Harbors MN.

* WHEN...Until 2 PM CST this afternoon.

* IMPACTS...Very strong winds will cause hazardous waves which 
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

804 
WHUS73 KDLH 061838
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
1238 PM CST Mon Dec 6 2021

LSZ142-070000-
/O.CAN.KDLH.SR.W.0002.000000T0000Z-211206T2000Z/
/O.NEW.KDLH.SC.Y.0106.211206T1838Z-211207T0000Z/
/O.CAN.KDLH.UP.W.0001.000000T0000Z-211206T2000Z/
Taconite Harbor to Silver Bay Harbor MN-
1238 PM CST Mon Dec 6 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING...
...STORM WARNING IS CANCELLED...
...HEAVY FREEZING SPRAY WARNING IS CANCELLED...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 50 kt and 
  waves 2 to 5 ft.

* WHERE...Taconite Harbor to Silver Bay Harbor MN.

* WHEN...Until 6 PM CST this evening.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Anyone operating a smaller vessel should avoid navigating in
hazardous conditions.

&&

$$

LSZ143>145-070000-
/O.CAN.KDLH.SR.W.0002.000000T0000Z-211206T2000Z/
/O.NEW.KDLH.SC.Y.0106.211206T1838Z-211207T0000Z/
Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN-
Duluth MN to Port Wing WI-
1238 PM CST Mon Dec 6 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING...
...STORM WARNING IS CANCELLED...

* WHAT...Northwest winds 15 to 20 kt with gusts up to 50 kt and 
  waves 2 to 4 ft.

* WHERE...Silver Bay Harbor to Two Harbors MN, Two Harbors to 
  Duluth MN and Duluth MN to Port Wing WI.

* WHEN...Until 6 PM CST this evening.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Anyone operating a smaller vessel should avoid navigating in
hazardous conditions.

&&

$$

LSZ121-146>148-150-062200-
/O.CON.KDLH.GL.W.0017.000000T0000Z-211206T2200Z/
Chequamegon Bay-Bayfield to Oak Point WI-
Port Wing to Sand Island WI-Sand Island to Bayfield WI-
Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
1238 PM CST Mon Dec 6 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM CST THIS AFTERNOON...

* WHAT...Northwest winds 20 to 30 kt and waves 4 to 7 ft.

* WHERE...Port Wing to Sand Island WI, Sand Island to Bayfield 
  WI, Oak Point to Saxon Harbor WI, Chequamegon Bay-Bayfield to 
  Oak Point WI and Outer Apostle Islands Beyond 5 NM from 
  Mainland.

* WHEN...Until 4 PM CST this afternoon.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LSZ140-141-062000-
/O.CON.KDLH.SR.W.0002.000000T0000Z-211206T2000Z/
/O.CON.KDLH.UP.W.0001.000000T0000Z-211206T2000Z/
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
1238 PM CST Mon Dec 6 2021

...STORM WARNING REMAINS IN EFFECT UNTIL 2 PM CST THIS
AFTERNOON...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 2 PM CST
THIS AFTERNOON...

* WHAT...For the Heavy Freezing Spray Warning, heavy freezing 
  spray at a rate of 2 cm per hour or greater may rapidly 
  accumulate on vessels. For the Storm Warning, northwest winds 
  25 to 30 kt with gusts up to 50 kt and waves 2 to 5 ft.

* WHERE...Grand Portage to Grand Marais MN and Grand Marais to 
  Taconite Harbor MN.

* WHEN...Until 2 PM CST this afternoon.

* IMPACTS...Operating a vessel in heavy freezing spray is 
  hazardous. Freezing spray may render mechanical and electronic 
  components inoperative. Rapid ice accretion on decks and 
  superstructures may result in a catastrophic loss of 
  stability. Very strong winds will cause hazardous waves which 
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

466 
WHUS73 KDLH 062005
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
205 PM CST Mon Dec 6 2021

LSZ146-148-070100-
/O.CAN.KDLH.GL.W.0017.000000T0000Z-211206T2200Z/
/O.EXB.KDLH.SC.Y.0106.000000T0000Z-211207T0100Z/
Port Wing to Sand Island WI-Oak Point to Saxon Harbor WI-
205 PM CST Mon Dec 6 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CST THIS EVENING...
...GALE WARNING IS CANCELLED...

* WHAT...Northwest winds 20 to 25 kt with gusts up to 30 kt and 
  waves 3 to 6 ft.

* WHERE...Port Wing to Sand Island WI and Oak Point to Saxon 
  Harbor WI.

* WHEN...Until 7 PM CST this evening.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Anyone operating a smaller vessel should avoid navigating in
hazardous conditions.

&&

$$

LSZ150-070815-
/O.CAN.KDLH.GL.W.0017.000000T0000Z-211206T2200Z/
/O.EXB.KDLH.SC.Y.0106.000000T0000Z-211207T1500Z/
Outer Apostle Islands Beyond 5 NM from Mainland-
205 PM CST Mon Dec 6 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM CST TUESDAY...
...GALE WARNING IS CANCELLED...

* WHAT...West winds 15 to 25 kt with gusts up to 30 kt and waves 
  4 to 7 ft.

* WHERE...Outer Apostle Islands Beyond 5 NM from Mainland.

* WHEN...Until 9 AM CST Tuesday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Anyone operating a smaller vessel should avoid navigating in
hazardous conditions.

&&

$$

LSZ121-147-062115-
/O.CAN.KDLH.GL.W.0017.000000T0000Z-211206T2200Z/
Chequamegon Bay-Bayfield to Oak Point WI-
Sand Island to Bayfield WI-
205 PM CST Mon Dec 6 2021

...GALE WARNING IS CANCELLED...

$$

LSZ140-141-070100-
/O.EXP.KDLH.SR.W.0002.000000T0000Z-211206T2000Z/
/O.EXP.KDLH.UP.W.0001.000000T0000Z-211206T2000Z/
/O.EXB.KDLH.SC.Y.0106.000000T0000Z-211207T0100Z/
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
205 PM CST Mon Dec 6 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CST THIS EVENING...
...STORM WARNING HAS EXPIRED...
...HEAVY FREEZING SPRAY WARNING HAS EXPIRED...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 45 kt and 
  waves 1 to 4 ft.

* WHERE...Grand Portage to Grand Marais MN and Grand Marais to 
  Taconite Harbor MN.

* WHEN...Until 7 PM CST this evening.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Anyone operating a smaller vessel should avoid navigating in
hazardous conditions.

&&

$$

LSZ142>145-070100-
/O.EXT.KDLH.SC.Y.0106.000000T0000Z-211207T0100Z/
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-
205 PM CST Mon Dec 6 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 PM CST THIS
EVENING...

* WHAT...Northwest winds 15 to 20 kt with gusts up to 40 kt and 
  waves 1 to 4 ft.

* WHERE...Two Harbors to Duluth MN, Duluth MN to Port Wing WI, 
  Taconite Harbor to Silver Bay Harbor MN and Silver Bay Harbor 
  to Two Harbors MN.

* WHEN...Until 7 PM CST this evening.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Anyone operating a smaller vessel should avoid navigating in
hazardous conditions.

&&

$$

Area Forecast Discussion
National Weather Service Duluth MN
542 PM CST Sun Dec 5 2021

.DISCUSSION...(This evening through Saturday)
Issued at 434 PM CST Sun Dec 5 2021

Summary: A winter system continues to pivot across the Northland
this evening bringing widespread snowfall. As the low passes across
the region winds will switch to out of the northwest and become very
strong with gusts upwards of 45 mph at times. Blowing snow will be a
concern. Additionally, temperatures will plummet with the departing
low and early morning wind chills across our western counties may
drop to -25F.

Our first large winter storm continues to churn across the region
this evening. The surface low pressure is centered over west central
MN. Radar also depicts a band of heavy snow traversing St. Louis
County and along the the North Shore. Winds continue to remain
strong as the surface low continues to deepen as it slides east.
Snowfall has exponentially ramped up along the North Shore as the
lake effect component combines with a very deep DGZ. Webcams show
difficult travel conditions along HWY 61 and the rest of the
Arrowhead with the roads being completely covered in snow.

We have had a few issues pop up with this particular storm system.
Water vapor reveals a dry slot aloft that is causing freezing
drizzle to fall over portions of the region. This change in
precipitation type has eaten away at some of our snow totals and
with this forecast package we have tried to capture the lower snow
totals. As the night progresses the low will pass across Duluth
heading east. On the backside of this low is an extremely tight
pressure gradient. Very gusty winds will be expected with speeds
upwards of 45 mph possible. This will lead to areas of blowing snow
and snow drifts. With the strong NW winds filtering in on the
backside of the low the chances of a gravity wave forming in the lee
of the North Shore are high. This lingering feature could bring an
additional couple of inches across northern WI and the Bayfield
Peninsula.

With the winds shifting to out of the northwest we will see lake
effect snow showers transition from the North Shore to the South
Shore overnight as well. Iron, and Ashland are under the gun for an
additional 3 to 6 inches after midnight.

Putting snow aside there is concern about the arctic air that
plunges in behind the system. Overnight lows for tonight are
expected to bottom out around -5F along our western edge. However,
the strong northwest winds could lead to wind chills around -25F in
the morning. A wind chill advisory may be needed. These cold
temperatures stick around through Monday with Tuesday morning also
expected to be on the chilly side.

By the midweek point temperatures begin to trend up once again with
highs climbing above freezing on Thursday. Additionally, Thursday
will bring our next chance for precipitation across the Northland
again. At this time it is too soon to narrow down in snow totals.

&&

.AVIATION...(For the 00Z TAFS through 00Z Monday evening)
Issued at 542 PM CST Sun Dec 5 2021

The large system that brought the wintry mix of precipitation types,
along with some accumulating snow, will depart the region Monday.
This will bring a gradual end to the precipitation for much of the
area. Gusty northwest winds will affect all terminals tonight
through Monday. Cigs and vsbys will vary based on the intensity of
the snow, and run from LIFR/IFR/MVFR, improving to VFR by Monday
afternoon.

&&

.MARINE...
Issued at 434 PM CST Sun Dec 5 2021

A deepening low pressure is approaching the head of the Lake this
evening with Gales along portions of the North Shore. As the low
crosses there will be a brief lull (and a winds shift) before an
extremely strong pressure gradient develops in the wake of the
system. To account for this we have a Storm Watch out for Monday.
Waves will respond accordingly to the strong winds and will build
in excess of 10 feet today and into Monday downstream of the
prevailing wind direction as the winds shift around the center of
the area of low pressure.

&&

.PRELIMINARY POINT TEMPS/POPS...
DLH   5  11  -5  14 /  80   0   0   0
INL  -4   3  -9  10 /  70  10   0   0
BRD   1   5  -3  18 /  50   0   0   0
HYR  10  18  -5  16 /  70  10   0   0
ASX  13  22  -2  16 /  80  40   0   0

&&

.DLH WATCHES/WARNINGS/ADVISORIES...
WI...Winter Storm Warning until 6 AM CST Monday for WIZ001>003-009.

     Winter Weather Advisory until 6 AM CST Monday for WIZ006>008.

     Winter Storm Warning until noon CST Monday for WIZ004.

MN...Winter Storm Warning until 6 AM CST Monday for MNZ010>012-
     018>020-025-026-035-037.

     Winter Weather Advisory until midnight CST tonight for MNZ033-
     034-036-038.

     Blizzard Warning until 6 AM CST Monday for MNZ021.

LS...Storm Watch from 9 PM CST this evening through Monday morning
     for LSZ121-140>148-150.

     Small Craft Advisory until 9 PM CST this evening for LSZ121-
     142>148-150.

     Gale Warning until 7 PM CST this evening for LSZ140-141.

&&

DISCUSSION...Britt
AVIATION...GSF/LE
MARINE...Britt

Hazardous Weather Outlook
National Weather Service Duluth MN
420 PM CST Sun Dec 5 2021

MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-061030-
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-
420 PM CST Sun Dec 5 2021

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

.DAY ONE...Tonight

A large winter storm will continue to affect the Northland through
Monday morning. Winter Weather Advisories, Winter Storm Warnings,
and a Blizzard Warning are in effect. Travel conditions will
deteriorate and become difficult to impossible.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

The snowbelt along the South Shore, especially in Iron and
Ashland Counties, could see higher snow amounts into Monday due
to lake effects. Winter Storm Warnings are in effect.

Wind Advisories may be needed as the system departs Monday.

.SPOTTER INFORMATION STATEMENT...

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

LSZ121-140>148-150-061030-
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-
Outer Apostle Islands Beyond 5 NM from Mainland-
420 PM CST Sun Dec 5 2021

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

.DAY ONE...Tonight

Small craft advisories and gale warnings continue. Winds will
then turn to the northwest and increase to possible storm force
gusts tonight, which will pose a hazard to all ships. A Storm
Watch is in effect for all zones, and a Storm Warning may be
needed.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Possible storm force gusts continue through Monday as the system
departs to the east, posing a threat to all ships.

GSF

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

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
705 PM CST SUN DEC 5 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0248 PM     SNOW             MCGREGOR                46.61N 93.31W
12/05/2021  M3.0 INCH        AITKIN             MN   PUBLIC

&&

BJH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
706 PM CST SUN DEC 5 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0250 PM     SNOW             SAWBILL LAKE            47.87N 90.89W
12/05/2021  M8.5 INCH        COOK               MN   PUBLIC

&&

BJH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
707 PM CST SUN DEC 5 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0230 PM     SNOW             CHISHOLM                47.49N 92.89W
12/05/2021  M9.0 INCH        ST. LOUIS          MN   COCORAHS

&&

BJH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
708 PM CST SUN DEC 5 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0213 PM     SNOW             2 ESE EVELETH           47.45N 92.50W
12/05/2021  M9.0 INCH        ST. LOUIS          MN   PUBLIC

&&

BJH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
709 PM CST SUN DEC 5 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0100 PM     SNOW             SILVER BAY              47.29N 91.28W
12/05/2021  M6.0 INCH        LAKE               MN   PUBLIC

&&

BJH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
710 PM CST SUN DEC 5 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0130 PM     SNOW             6 ESE BRITT             47.61N 92.44W
12/05/2021  M6.8 INCH        ST. LOUIS          MN   TRAINED SPOTTER

&&

BJH