Alert archive / Minnesota / Small Craft Advisories in 2021

Small Craft Advisory 78, NWS Duluth, MN

October 19, 2021

NWS Duluth, MN issued this small craft advisory at Oct 19, 2021, 5:32 AM CDT. It took effect at Oct 19, 2021, 10:00 PM CDT. It was in force for 39 hr.

The area

The counties it named.

The facts

Issued
Oct 19, 2021, 5:32 AM CDT (10:32 UTC)
In effect from
Oct 19, 2021, 10:00 PM CDT
Expired
Oct 21, 2021, 1:00 PM CDT
In force
39 hr
Issued by
NWS Duluth, MN

The text

As transmitted.

137 
WHUS73 KDLH 191032
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
532 AM CDT Tue Oct 19 2021

LSZ121-143>148-150-192245-
/O.NEW.KDLH.SC.Y.0078.211020T0300Z-211021T1200Z/
Chequamegon Bay-Bayfield to Oak Point WI-
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-
532 AM CDT Tue Oct 19 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 7 AM
CDT THURSDAY...

* WHAT...Northeast winds 15 to 25 kt with gusts up to 35 kt and 
  waves 4 to 8 ft expected.

* WHERE...Portions of Lake Superior. 

* WHEN...From 10 PM this evening to 7 AM CDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

BJH
14 follow-up statements
716 
WHUS73 KDLH 191439
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
939 AM CDT Tue Oct 19 2021

LSZ140-141-200245-
/O.EXB.KDLH.SC.Y.0078.211020T0300Z-211020T1500Z/
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
939 AM CDT Tue Oct 19 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO
10 AM CDT WEDNESDAY...

* WHAT...Northeast winds 10 to 20 kt with gusts up to 25 kt and 
  waves 1 to 3 ft expected.

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

* WHEN...From 10 PM this evening to 10 AM CDT Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ121-143>148-150-200245-
/O.CON.KDLH.SC.Y.0078.211020T0300Z-211021T1200Z/
Chequamegon Bay-Bayfield to Oak Point WI-
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-
939 AM CDT Tue Oct 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING
TO 7 AM CDT THURSDAY...

* WHAT...Northeast winds 10 to 20 kt with gusts up to 30 kt and 
  waves 4 to 7 ft expected.

* WHERE...Portions of Lake Superior. 

* WHEN...From 10 PM this evening to 7 AM CDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
078 
WHUS73 KDLH 192006
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
306 PM CDT Tue Oct 19 2021

LSZ142-200815-
/O.EXA.KDLH.SC.Y.0078.211020T0300Z-211020T1500Z/
Taconite Harbor to Silver Bay Harbor MN-
306 PM CDT Tue Oct 19 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO
10 AM CDT WEDNESDAY...

* WHAT...North winds 10 to 20 kt with gusts up to 25 kt

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

* WHEN...From 10 PM this evening to 10 AM CDT Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ121-143>147-200815-
/O.CON.KDLH.SC.Y.0078.211020T0300Z-211021T1200Z/
Chequamegon Bay-Bayfield to Oak Point WI-
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-
306 PM CDT Tue Oct 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING
TO 7 AM CDT THURSDAY...

* WHAT...Northeast winds 10 to 20 kt with gusts up to 30 kt and 
  waves 3 to 6 ft expected.

* WHERE...Portions of Lake Superior. 

* WHEN...From 10 PM this evening to 7 AM CDT Thursday.

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

* Additional Information...Waves will vary widely depending on
  which nearshore zone that you are in. Lowest waves will be on
  the North Shore of Lake Superior.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ140-141-200815-
/O.CON.KDLH.SC.Y.0078.211020T0300Z-211020T1500Z/
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
306 PM CDT Tue Oct 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING
TO 10 AM CDT WEDNESDAY...

* WHAT...North winds 10 to 20 kt with gusts up to 30 kt and 
  waves 1 to 3 ft expected.

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

* WHEN...From 10 PM this evening to 10 AM CDT Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ148-150-200815-
/O.CON.KDLH.SC.Y.0078.211020T0300Z-211021T1200Z/
Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
306 PM CDT Tue Oct 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING
TO 7 AM CDT THURSDAY...

* WHAT...Northeast winds 15 to 25 kt with local gusts up to 35 kt
  and waves 5 to 8 ft expected.

* WHERE...Oak Point to Saxon Harbor WI and Outer Apostle Islands 
  Beyond 5 NM from Mainland.

* WHEN...From 10 PM this evening to 7 AM CDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
892 
WHUS73 KDLH 200229
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
929 PM CDT Tue Oct 19 2021

LSZ121-143>147-201430-
/O.CON.KDLH.SC.Y.0078.211020T0300Z-211021T1200Z/
Chequamegon Bay-Bayfield to Oak Point WI-
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-
929 PM CDT Tue Oct 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT
THURSDAY...

* WHAT...Northeast winds 10 to 20 kt with gusts up to 30 kt and 
  waves 3 to 6 ft expected.

* WHERE...Portions of Lake Superior. 

* WHEN...Until 7 AM CDT Thursday.

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

* Additional Information...Waves will vary widely depending on 
  which nearshore zone that you are in. Lowest waves will be on 
  the North Shore of Lake Superior.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ140>142-201430-
/O.CON.KDLH.SC.Y.0078.211020T0300Z-211020T1500Z/
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
Taconite Harbor to Silver Bay Harbor MN-
929 PM CDT Tue Oct 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT
WEDNESDAY...

* WHAT...Northeast winds 10 to 15 kt with gusts up to 30 kt and 
  waves 1 to 3 ft expected.

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

* WHEN...Until 10 AM CDT Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ148-150-201430-
/O.CON.KDLH.SC.Y.0078.211020T0300Z-211021T1200Z/
Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
929 PM CDT Tue Oct 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT
THURSDAY...

* WHAT...Northeast winds 10 to 20 kt with gusts up to 30 kt and 
  waves 5 to 8 ft expected.

* WHERE...Oak Point to Saxon Harbor WI and Outer Apostle Islands 
  Beyond 5 NM from Mainland.

* WHEN...Until 7 AM CDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
611 
WHUS73 KDLH 200828
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
328 AM CDT Wed Oct 20 2021

LSZ121-143>147-202030-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211021T1200Z/
Chequamegon Bay-Bayfield to Oak Point WI-
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-
328 AM CDT Wed Oct 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT
THURSDAY...

* WHAT...Northeast winds 15 to 25 kt with gusts up to 30 kt and 
  waves 3 to 6 ft.

* WHERE...Portions of Lake Superior. 

* WHEN...Until 7 AM CDT Thursday.

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

* Additional Information...Waves will vary widely depending on 
  which nearshore zone that you are in. Lowest waves will be on 
  the North Shore of Lake Superior.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ140>142-201500-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211020T1500Z/
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
Taconite Harbor to Silver Bay Harbor MN-
328 AM CDT Wed Oct 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT THIS
MORNING...

* WHAT...Northeast winds 5 to 15 kt with gusts up to 25 kt and 
  waves 1 to 3 ft.

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

* WHEN...Until 10 AM CDT this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ148-150-202030-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211021T1200Z/
Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
328 AM CDT Wed Oct 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT
THURSDAY...

* WHAT...Northeast winds 15 to 25 kt and waves 4 to 7 ft.

* WHERE...Oak Point to Saxon Harbor WI and Outer Apostle Islands 
  Beyond 5 NM from Mainland.

* WHEN...Until 7 AM CDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
728 
WHUS73 KDLH 201505
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
1005 AM CDT Wed Oct 20 2021

LSZ140>142-201615-
/O.EXP.KDLH.SC.Y.0078.000000T0000Z-211020T1500Z/
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
Taconite Harbor to Silver Bay Harbor MN-
1005 AM CDT Wed Oct 20 2021

...SMALL CRAFT ADVISORY HAS EXPIRED...

$$

LSZ144-145-210315-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211021T1200Z/
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
1005 AM CDT Wed Oct 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT
THURSDAY...

* WHAT...Northeast winds 15 to 25 kt with gusts up to 30 kt and
  waves 5 to 9 ft.

* WHERE...Two Harbors to Duluth MN and Duluth MN to Port Wing WI.

* WHEN...Until 7 AM CDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ148-150-210315-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211021T1200Z/
Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
1005 AM CDT Wed Oct 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT
THURSDAY...

* WHAT...Northeast winds 15 to 25 kt with gusts up to 30 kt and
  waves 5 to 8 ft.

* WHERE...Oak Point to Saxon Harbor WI and Outer Apostle Islands 
  Beyond 5 NM from Mainland.

* WHEN...Until 7 AM CDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ143-146-210315-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211021T1200Z/
Silver Bay Harbor to Two Harbors MN-Port Wing to Sand Island WI-
1005 AM CDT Wed Oct 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT
THURSDAY...

* WHAT...Northeast winds 15 to 25 kt with gusts up to 30 kt and 
  waves 3 to 6 ft.

* WHERE...Port Wing to Sand Island WI and Silver Bay Harbor to 
  Two Harbors MN.

* WHEN...Until 7 AM CDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ121-147-210315-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211021T1200Z/
Chequamegon Bay-Bayfield to Oak Point WI-
Sand Island to Bayfield WI-
1005 AM CDT Wed Oct 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT
THURSDAY...

* WHAT...Northeast winds 15 to 20 kt with gusts up to 30 kt and
  waves 2 to 5 ft.

* WHERE...Sand Island to Bayfield WI and Chequamegon Bay-
  Bayfield to Oak Point WI.

* WHEN...Until 7 AM CDT Thursday.

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

* Additional Information...Waves will vary widely across this
  nearh shore zone of Lake Superior.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
538 
WHUS73 KDLH 202109
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
409 PM CDT Wed Oct 20 2021

LSZ144-145-210915-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211021T1200Z/
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
409 PM CDT Wed Oct 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT
THURSDAY...

* WHAT...Northeast winds 15 to 25 kt with local gusts up to 35 kt
  and waves 5 to 9 ft.

* WHERE...Two Harbors to Duluth MN and Duluth MN to Port Wing WI.

* WHEN...Until 7 AM CDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ148-150-210915-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211021T1200Z/
Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
409 PM CDT Wed Oct 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT
THURSDAY...

* WHAT...Northeast winds 15 to 20 kt with gusts up to 30 kt and
  waves 5 to 9 ft.

* WHERE...Oak Point to Saxon Harbor WI and Outer Apostle Islands 
  Beyond 5 NM from Mainland.

* WHEN...Until 7 AM CDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ143-146-210915-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211021T1200Z/
Silver Bay Harbor to Two Harbors MN-Port Wing to Sand Island WI-
409 PM CDT Wed Oct 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT
THURSDAY...

* WHAT...Northeast winds 10 to 20 kt with gusts up to 30 kt and 
  waves 3 to 6 ft.

* WHERE...Port Wing to Sand Island WI and Silver Bay Harbor to 
  Two Harbors MN.

* WHEN...Until 7 AM CDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ121-147-210915-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211021T1200Z/
Chequamegon Bay-Bayfield to Oak Point WI-
Sand Island to Bayfield WI-
409 PM CDT Wed Oct 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT
THURSDAY...

* WHAT...Northeast winds 15 to 20 kt with gusts up to 30 kt and
  waves 2 to 5 ft.

* WHERE...Sand Island to Bayfield WI and Chequamegon Bay-
  Bayfield to Oak Point WI.

* WHEN...Until 7 AM CDT Thursday.

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

* Additional Information...Waves will vary widely across this nearshore
  zone of Lake Superior.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
885 
WHUS73 KDLH 202137
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
437 PM CDT Wed Oct 20 2021

LSZ148-150-210945-
/O.EXT.KDLH.SC.Y.0078.000000T0000Z-211021T1800Z/
Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
437 PM CDT Wed Oct 20 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 1 PM CDT THURSDAY...

* WHAT...Northeast winds 15 to 20 kt with gusts up to 30 kt and 
  waves 5 to 9 ft.

* WHERE...Oak Point to Saxon Harbor WI and Outer Apostle Islands 
  Beyond 5 NM from Mainland.

* WHEN...Until 1 PM CDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ144-145-210945-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211021T1200Z/
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
437 PM CDT Wed Oct 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT
THURSDAY...

* WHAT...Northeast winds 15 to 25 kt with local gusts up to 35 
  kt and waves 5 to 9 ft.

* WHERE...Two Harbors to Duluth MN and Duluth MN to Port Wing WI.

* WHEN...Until 7 AM CDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ143-146-210945-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211021T1200Z/
Silver Bay Harbor to Two Harbors MN-Port Wing to Sand Island WI-
437 PM CDT Wed Oct 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT
THURSDAY...

* WHAT...Northeast winds 10 to 20 kt with gusts up to 30 kt and 
  waves 3 to 6 ft.

* WHERE...Port Wing to Sand Island WI and Silver Bay Harbor to 
  Two Harbors MN.

* WHEN...Until 7 AM CDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ121-147-210945-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211021T1200Z/
Chequamegon Bay-Bayfield to Oak Point WI-
Sand Island to Bayfield WI-
437 PM CDT Wed Oct 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT
THURSDAY...

* WHAT...Northeast winds 15 to 20 kt with gusts up to 30 kt and 
  waves 2 to 5 ft.

* WHERE...Sand Island to Bayfield WI and Chequamegon Bay- 
  Bayfield to Oak Point WI.

* WHEN...Until 7 AM CDT Thursday.

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

* Additional Information...Waves will vary widely across this 
  nearshore zone of Lake Superior.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
174 
WHUS73 KDLH 210218
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
918 PM CDT Wed Oct 20 2021

LSZ144-145-211200-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211021T1200Z/
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
918 PM CDT Wed Oct 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT
THURSDAY...

* WHAT...Northeast winds 10 to 20 kt with gusts up to 25 kt and 
  waves 3 to 6 ft.

* WHERE...Two Harbors to Duluth MN and Duluth MN to Port Wing WI.

* WHEN...Until 7 AM CDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ148-150-211430-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211021T1800Z/
Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
918 PM CDT Wed Oct 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT
THURSDAY...

* WHAT...Northeast winds 10 to 20 kt with gusts up to 25 kt and 
  waves 3 to 6 ft.

* WHERE...Oak Point to Saxon Harbor WI and Outer Apostle Islands 
  Beyond 5 NM from Mainland.

* WHEN...Until 1 PM CDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ143-146-211200-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211021T1200Z/
Silver Bay Harbor to Two Harbors MN-Port Wing to Sand Island WI-
918 PM CDT Wed Oct 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT
THURSDAY...

* WHAT...Northeast winds 10 to 20 kt with gusts up to 25 kt and 
  waves 3 to 5 ft.

* WHERE...Port Wing to Sand Island WI and Silver Bay Harbor to 
  Two Harbors MN.

* WHEN...Until 7 AM CDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ121-147-211200-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211021T1200Z/
Chequamegon Bay-Bayfield to Oak Point WI-
Sand Island to Bayfield WI-
918 PM CDT Wed Oct 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT
THURSDAY...

* WHAT...Northeast winds 10 to 20 kt with gusts up to 25 kt and 
  waves 1 to 4 ft.

* WHERE...Sand Island to Bayfield WI and Chequamegon Bay-
  Bayfield to Oak Point WI.

* WHEN...Until 7 AM CDT Thursday.

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

* Additional Information...Waves will vary widely across this 
  nearshore zone of Lake Superior.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
184 
WHUS73 KDLH 210658
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
158 AM CDT Thu Oct 21 2021

LSZ121-147-211500-
/O.EXT.KDLH.SC.Y.0078.000000T0000Z-211021T1500Z/
Chequamegon Bay-Bayfield to Oak Point WI-
Sand Island to Bayfield WI-
158 AM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 AM CDT THIS
MORNING...

* WHAT...Northeast winds 15 to 20 kt with gusts up to 30 kt and
  waves 2 to 4 ft.

* WHERE...Sand Island to Bayfield WI and Chequamegon Bay-
  Bayfield to Oak Point WI.

* WHEN...Until 10 AM CDT this morning.

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

* Additional Information...Waves will vary widely across this 
  nearshore zone of Lake Superior.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ146-211500-
/O.EXT.KDLH.SC.Y.0078.000000T0000Z-211021T1500Z/
Port Wing to Sand Island WI-
158 AM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 AM CDT THIS
MORNING...

* WHAT...Northeast winds 15 to 20 kt with gusts up to 30 kt and 
  waves 3 to 6 ft.

* WHERE...Port Wing to Sand Island WI.

* WHEN...Until 10 AM CDT this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ144-145-211200-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211021T1200Z/
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
158 AM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT THIS
MORNING...

* WHAT...Northeast winds 10 to 20 kt with gusts up to 30 kt and 
  waves 3 to 6 ft.

* WHERE...Two Harbors to Duluth MN and Duluth MN to Port Wing WI.

* WHEN...Until 7 AM CDT this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ148-150-211800-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211021T1800Z/
Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
158 AM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT THIS
AFTERNOON...

* WHAT...Northeast winds 15 to 20 kt with gusts up to 30 kt and 
  waves 3 to 6 ft.

* WHERE...Oak Point to Saxon Harbor WI and Outer Apostle Islands 
  Beyond 5 NM from Mainland.

* WHEN...Until 1 PM CDT this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ143-211200-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211021T1200Z/
Silver Bay Harbor to Two Harbors MN-
158 AM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT THIS
MORNING...

* WHAT...North winds 15 to 20 kt with gusts up to 25 kt and waves
  2 to 4 ft.

* WHERE...Silver Bay Harbor to Two Harbors MN.

* WHEN...Until 7 AM CDT this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PA
323 
WHUS73 KDLH 211101
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
601 AM CDT Thu Oct 21 2021

LSZ144-145-211500-
/O.EXT.KDLH.SC.Y.0078.000000T0000Z-211021T1500Z/
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
601 AM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 AM CDT THIS
MORNING...

* WHAT...North winds 10 to 15 kt with gusts up to 25 kt and 
  waves 3 to 5 ft.

* WHERE...Two Harbors to Duluth MN and Duluth MN to Port Wing WI.

* WHEN...Until 10 AM CDT this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ148-150-211800-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211021T1800Z/
Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
601 AM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT THIS
AFTERNOON...

* WHAT...North winds 10 to 20 kt with gusts up to 25 kt and 
  waves 3 to 6 ft.

* WHERE...Oak Point to Saxon Harbor WI and Outer Apostle Islands 
  Beyond 5 NM from Mainland.

* WHEN...Until 1 PM CDT this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ143-211215-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211021T1200Z/
Silver Bay Harbor to Two Harbors MN-
601 AM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT THIS
MORNING...

* WHAT...Waves 2 to 4 ft.

* WHERE...Silver Bay Harbor to Two Harbors MN.

* WHEN...Until 7 AM CDT this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ121-147-211500-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211021T1500Z/
Chequamegon Bay-Bayfield to Oak Point WI-
Sand Island to Bayfield WI-
601 AM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT THIS
MORNING...

* WHAT...North winds 10 to 15 kt with gusts to 25 kt. Waves 1 to 
  3 ft.

* WHERE...Sand Island to Bayfield WI and Chequamegon Bay-
  Bayfield to Oak Point WI.

* WHEN...Until 10 AM CDT this morning.

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

* Additional Information...Waves will vary widely across this 
  nearshore zone of Lake Superior.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ146-211500-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211021T1500Z/
Port Wing to Sand Island WI-
601 AM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT THIS
MORNING...

* WHAT...North winds around 15 kt with gusts up to 25 kt and 
  waves 3 to 5 ft.

* WHERE...Port Wing to Sand Island WI.

* WHEN...Until 10 AM CDT this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PA
753 
WHUS73 KDLH 211157
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
657 AM CDT Thu Oct 21 2021

LSZ121-211300-
/O.CAN.KDLH.SC.Y.0078.000000T0000Z-211021T1500Z/
Chequamegon Bay-Bayfield to Oak Point WI-
657 AM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

Winds and waves will continue to subside through the day. 

$$

LSZ143-211300-
/O.EXP.KDLH.SC.Y.0078.000000T0000Z-211021T1200Z/
Silver Bay Harbor to Two Harbors MN-
657 AM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY WILL EXPIRE AT 7 AM CDT THIS MORNING...

Winds and waves will continue to subside through the day. 

$$

LSZ144-145-211500-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211021T1500Z/
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
657 AM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT THIS
MORNING...

* WHAT...Waves 3 to 5 ft. Northeast turning north winds at 15 to
  20 kt, gusts to 25 kt.

* WHERE...Two Harbors to Duluth MN and Duluth MN to Port Wing WI.

* WHEN...Until 10 AM CDT this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ148-150-211800-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211021T1800Z/
Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
657 AM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT THIS
AFTERNOON...

* WHAT...North winds 10 to 20 kt with gusts up to 25 kt, and waves
  4 to 6 ft.

* WHERE...Oak Point to Saxon Harbor WI and Outer Apostle Islands 
  Beyond 5 NM from Mainland.

* WHEN...Until 1 PM CDT this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ147-211500-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211021T1500Z/
Sand Island to Bayfield WI-
657 AM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT THIS
MORNING...

* WHAT...Northeast turning north winds at 15 to 20 kt, gusts to 25
  kt, and waves 2 to 4 ft.

* WHERE...Sand Island to Bayfield WI.

* WHEN...Until 10 AM CDT this morning.

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

* Additional Information...Waves will vary widely across this 
  nearshore zone of Lake Superior.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ146-211500-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211021T1500Z/
Port Wing to Sand Island WI-
657 AM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT THIS
MORNING...

* WHAT...North winds around 15 kt with gusts up to 25 kt and 
  waves 3 to 5 ft.

* WHERE...Port Wing to Sand Island WI.

* WHEN...Until 10 AM CDT this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PA
524 
WHUS73 KDLH 211455
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
955 AM CDT Thu Oct 21 2021

LSZ144-211600-
/O.CAN.KDLH.SC.Y.0078.000000T0000Z-211021T1500Z/
Two Harbors to Duluth MN-
955 AM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

$$

LSZ145-211700-
/O.EXT.KDLH.SC.Y.0078.000000T0000Z-211021T1700Z/
Duluth MN to Port Wing WI-
955 AM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL NOON CDT TODAY...

* WHAT...Waves 3 to 5 ft.

* WHERE...Duluth MN to Port Wing WI.

* WHEN...Until noon CDT today.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ147-211700-
/O.EXT.KDLH.SC.Y.0078.000000T0000Z-211021T1700Z/
Sand Island to Bayfield WI-
955 AM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL NOON CDT TODAY...

* WHAT...Waves 3 to 5 ft.

* WHERE...Sand Island to Bayfield WI.

* WHEN...Until noon CDT today.

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

* Additional Information...Waves will vary widely across this 
  nearshore zone of Lake Superior.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ146-211700-
/O.EXT.KDLH.SC.Y.0078.000000T0000Z-211021T1700Z/
Port Wing to Sand Island WI-
955 AM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL NOON CDT TODAY...

* WHAT...Waves 3 to 5 ft.

* WHERE...Port Wing to Sand Island WI.

* WHEN...Until noon CDT today.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ148-150-211800-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211021T1800Z/
Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
955 AM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT THIS
AFTERNOON...

* WHAT...Waves 3 to 5 ft.

* WHERE...Outer Apostle Islands Beyond 5 NM from Mainland and 
  Oak Point to Saxon Harbor WI.

* WHEN...Until 1 PM CDT this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
108 
WHUS73 KDLH 211700
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
1200 PM CDT Thu Oct 21 2021

LSZ145>147-211800-
/O.EXP.KDLH.SC.Y.0078.000000T0000Z-211021T1700Z/
Duluth MN to Port Wing WI-Port Wing to Sand Island WI-
Sand Island to Bayfield WI-
1200 PM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY HAS EXPIRED...

$$

LSZ148-150-211800-
/O.CON.KDLH.SC.Y.0078.000000T0000Z-211021T1800Z/
Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
1200 PM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT THIS
AFTERNOON...

* WHAT...Waves 3 to 5 ft.

* WHERE...Outer Apostle Islands Beyond 5 NM from Mainland and 
  Oak Point to Saxon Harbor WI.

* WHEN...Until 1 PM CDT this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
438 
WHUS73 KDLH 211801
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
101 PM CDT Thu Oct 21 2021

LSZ148-150-211915-
/O.EXP.KDLH.SC.Y.0078.000000T0000Z-211021T1800Z/
Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
101 PM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY HAS EXPIRED...


$$

What forecasters said that day

The local office's own words before this small craft advisory 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 small craft advisory went out at Oct 19, 12:37 AM CDT, 4 hours 55 minutes earlier.

Area forecast discussion, Oct 19, 12:37 AM CDT, 4 hours 55 minutes before
Area Forecast Discussion
National Weather Service Duluth MN
1237 AM CDT Tue Oct 19 2021

.DISCUSSION...(This evening through Sunday)
Issued at 325 PM CDT Mon Oct 18 2021

Summary: dry conditions continue through Tuesday night before
increasing chances of showers, and maybe a thunderstorm or two,
moves across the southern portions of our forecast area.
Temperatures will fall to below-average values for the latter half
of the week. Some snow may fall for Friday into Saturday, but no
accumulation is expected.

High pressure ridging will remain in place across the Northland
through much of the day Tuesday, keeping conditions mostly clear and
dry. Warmer than normal temperatures will continue Tuesday, with
highs in the middle 50s over far north-central Minnesota to the
upper 60s across northwest Wisconsin and adjoining areas of
Minnesota. A dry cold front will sag southward Tuesday across
northeast Minnesota, but the only impact will be increasing cloud
cover. The cooler air associated with that front will progress
southward across the rest of the region.

Attention then turns to Wednesday as a nearly vertically-stacked
area of low pressure makes its way towards the Northland. Model
guidance is in very good agreement that the track of the surface low
will remain just to our south, putting the most favorable area of
deformation/frontogenetical forcing along our southern areas.
Instability will be very modest along the baroclinic zone of the
aforementioned front, generally around a few hundred to 500 J/kg of
most-unstable CAPE, so a thunderstorm or two can't be ruled out.
Rainfall amounts have increased slightly with this forecast package,
with most locations seeing between one-quarter and one-half of an
inch in total, with some isolated higher amounts possible.
Precipitation should wind down sometime Wednesday night into
Thursday.

Dry conditions will return for Thursday, and generally continue
through the upcoming weekend. We did increase the PoPs for the
Friday/Friday night time frame across our northeastern areas due to
a longwave upper-level trough setting up across the northern CONUS.
Cyclonic flow/cold air advection will develop, which should be able
to help squeeze out some precipitation. The GFS sounding shows a
saturated layer of air within the dendritic snow growth zone, so
it's possible we could see our first snowfall of the season for some
areas later this week. However, ground temperatures should be too
warm for anything to really accumulate. Much cooler temperatures are
expected for Thursday through Saturday, with high temperatures in
the lower to middle 40s, and overnight lows in the upper 20s to
lower 30s.

&&

.AVIATION...(For the 06Z TAFS through 06Z Tuesday night)
Issued at 1237 AM CDT Tue Oct 19 2021

Mostly VFR conditions through the TAF period. A LLJ moving over the
region will bring the chance for LLWS to INL, HIB, and DLH early
this morning. Light south winds will switch to the northwest
throughout the day as a cold front moves across the region from
northwest to southeast. Some MVFR and IFR ceilings are possible with
this front, but will only affect INL and HIB Tuesday afternoon and
evening. Some gusty northwest winds are possible at INL, HIB, and
DLH as the front passes through tomorrow afternoon and evening.

&&

.MARINE...
Issued at 330 PM CDT Mon Oct 18 2021

Quiet and dry conditions are expected through the daylight hours
Tuesday as a ridge of high pressure remains settled across the
region. Winds will be east to northeasterly through the evening
hours, generally around 5 to 10 knots, turning more southwesterly
tonight, remaining around 5 to 10 knots.

Hazardous marine conditions are expected to begin Tuesday night,
lasting through the day Wednesday as an area of low pressure
intensifies and makes its way towards western Lake Superior. Winds
will turn more northeasterly and strengthen, resulting in
building waves across the South Shore. Winds between 15 to 25
knots, with gusts around 25 to 35 knots, are expected as well.
Wave heights of 4 to 8 feet are expected Wednesday along the
South Shore. Small Craft Advisories will likely be needed
Wednesday due to these higher winds and waves. There is a potential
for gale-force winds during the daylight hours Wednesday.

&&

.PRELIMINARY POINT TEMPS/POPS...
DLH  44  67  44  49 /   0   0   0  60
INL  44  59  33  48 /   0   0   0  10
BRD  44  68  43  50 /   0   0  10  70
HYR  44  70  43  54 /   0   0   0  80
ASX  44  72  44  53 /   0   0   0  70

&&

.DLH WATCHES/WARNINGS/ADVISORIES...
WI...None.
MN...None.
LS...None.
&&

DISCUSSION...JTS
AVIATION...Levens
MARINE...JTS
Hazardous weather outlook, Oct 19, 3:39 AM CDT, 1 hour 53 minutes before
Hazardous Weather Outlook
National Weather Service Duluth MN
339 AM CDT Tue Oct 19 2021

MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-200845-
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-
339 AM CDT Tue Oct 19 2021

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

.DAY ONE...Today and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Skywarn spotter activation will not be needed today or tonight.

LSZ121-140>148-150-200845-
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-
339 AM CDT Tue Oct 19 2021

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

.DAY ONE...Today and Tonight

Strong northeasterly winds increase tonight ahead of an
approaching low pressure system. Additionally, higher waves will
also be possible. A Small Craft Advisory may be needed along the
South Shore and the head of the Lake.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Strong winds across the Lake are expected to linger through
Wednesday night. As the winds taper off Thursday, higher wave
heights will persist through the early portions of Thursday across
the South Shore. Small Craft Advisories may be extended through
this timeframe.

Britt

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

Nearby

Small Craft Advisories in Minnesota, 2021Every small craft advisory in 2021

Sources

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