Alert archive / Wisconsin / Small Craft Advisories in 2021

Small Craft Advisory 7, NWS Green Bay, WI

January 29, 2021

NWS Green Bay, WI issued this small craft advisory at Jan 29, 2021, 3:26 AM CST. It took effect at Jan 30, 2021, 6:00 AM CST. It was in force for 51 hr.

The area

The counties it named.

The facts

Issued
Jan 29, 2021, 3:26 AM CST (09:26 UTC)
In effect from
Jan 30, 2021, 6:00 AM CST
Expired
Feb 1, 2021, 9:00 AM CST
In force
51 hr
Issued by
NWS Green Bay, WI

The text

As transmitted.

111 
WHUS73 KGRB 290926
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
326 AM CST Fri Jan 29 2021

LMZ541>543-291730-
/O.NEW.KGRB.SC.Y.0007.210130T1200Z-210201T1200Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
326 AM CST Fri Jan 29 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM SATURDAY TO 6 AM CST
MONDAY...

* WHAT...East winds 15 to 25 kts Saturday and Saturday night, then
  backing Northeast and then North 15 to 25 kts Sunday into 
  Sunday night. Waves building to 4 to 7 ft Saturday afternoon and
  Saturday night, then continuing into Sunday night. 

* WHERE...Rock Island Passage to Sturgeon Bay WI, Sturgeon Bay 
  to Two Rivers WI and Two Rivers to Sheboygan WI.

* WHEN...From 6 AM Saturday to 6 AM CST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
Eckberg
12 follow-up statements
506 
WHUS73 KGRB 291628
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
1028 AM CST Fri Jan 29 2021

LMZ541>543-300030-
/O.CON.KGRB.SC.Y.0007.210130T1200Z-210201T1200Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
1028 AM CST Fri Jan 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM SATURDAY TO
6 AM CST MONDAY...

* WHAT...East winds 15 to 25 kts Saturday and Saturday night, 
  then backing Northeast and then North 15 to 25 kts Sunday into 
  Sunday night. Waves building to 4 to 7 ft Saturday afternoon 
  and Saturday night, then continuing into Sunday night.

* WHERE...Rock Island Passage to Sturgeon Bay WI, Sturgeon Bay 
  to Two Rivers WI and Two Rivers to Sheboygan WI.

* WHEN...From 6 AM Saturday to 6 AM CST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
596 
WHUS73 KGRB 292139
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
339 PM CST Fri Jan 29 2021

LMZ541>543-300545-
/O.CON.KGRB.SC.Y.0007.210130T1200Z-210201T1200Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
339 PM CST Fri Jan 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM SATURDAY TO
6 AM CST MONDAY...

* WHAT...East winds 15 to 25 kts Saturday and Saturday night, then
  backing northeast and then north 15 to 25 kts Sunday into Sunday
  night. Gusts to 30 kts. Waves building to 4 to 7 ft Saturday 
  afternoon and Saturday night, then continuing into Sunday night.

* WHERE...Nearshore waters of Lake Michigan from Rock Island
  Passage Sheboygan WI.

* WHEN...From 6 AM Saturday to 6 AM CST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

Bersch
277 
WHUS73 KGRB 300332
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
932 PM CST Fri Jan 29 2021

LMZ541>543-301145-
/O.CON.KGRB.SC.Y.0007.210130T1200Z-210201T1200Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
932 PM CST Fri Jan 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM SATURDAY TO
6 AM CST MONDAY...

* WHAT...East winds 15 to 25 kts Saturday and Saturday night, then
  backing northeast and then north Sunday into Sunday night. Gusts
  to 30 kts. Waves building to 3 to 7 ft Saturday afternoon and
  Saturday night, highest south of Sturgeon Bay. Waves will slowly
  subside Sunday night.

* WHERE...Nearshore waters of Lake Michigan from Rock Island 
  Passage Sheboygan WI.

* WHEN...From 6 AM Saturday to 6 AM CST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

Bersch
238 
WHUS73 KGRB 300944
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
344 AM CST Sat Jan 30 2021

LMZ541>543-301745-
/O.CON.KGRB.SC.Y.0007.210130T1200Z-210201T1200Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
344 AM CST Sat Jan 30 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST MONDAY...

* WHAT...East winds increasing to 15 to 25 kts with gusts to 30
  kts today and then continuing tonight, then backing northeast
  and then north Sunday into Sunday night. Waves building to 4 to
  8 ft this afternoon and tonight with the highest waves south of
  Sturgeon Bay. Waves will slowly subside Sunday night.

* WHERE...Rock Island Passage to Sturgeon Bay WI, Sturgeon Bay 
  to Two Rivers WI and Two Rivers to Sheboygan WI.

* WHEN...Until 6 AM CST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
Eckberg
072 
WHUS73 KGRB 301628
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
1028 AM CST Sat Jan 30 2021

LMZ541>543-310030-
/O.CON.KGRB.SC.Y.0007.000000T0000Z-210201T1200Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
1028 AM CST Sat Jan 30 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST MONDAY...

* WHAT...East to Southeast winds of 15 to 25 kts with gusts to 30
  kts thru tonight, then backing northeast and then north Sunday 
  into Sunday night. Waves building to 4 to 8 ft this afternoon 
  and tonight with the highest waves south of Sturgeon Bay. Waves 
  will slowly subside Sunday night.

* WHERE...Rock Island Passage to Sturgeon Bay WI, Sturgeon Bay 
  to Two Rivers WI and Two Rivers to Sheboygan WI.

* WHEN...Until 6 AM CST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
701 
WHUS73 KGRB 302138
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
338 PM CST Sat Jan 30 2021

LMZ541>543-310545-
/O.CON.KGRB.SC.Y.0007.000000T0000Z-210201T1200Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
338 PM CST Sat Jan 30 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST MONDAY...

* WHAT...East to southeast winds of 15 to 25 kts with gusts to 30
  kts through tonight, then backing northeast on Sunday and then
  north Sunday night. Waves building to 4 to 8 ft late this
  afternoon and evening, continuing tonight with the highest waves
  south of Sturgeon Bay. Waves of 3 to 6 ft are expected Sunday
  afternoon into Sunday night. Waves will slowly subside Monday
  morning.

* WHERE...Nearshore waters of Lake Michigan from Rock Island
  Passage Sheboygan WI.

* WHEN...Until 6 AM CST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

Bersch
348 
WHUS73 KGRB 310327
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
927 PM CST Sat Jan 30 2021

LMZ541>543-311130-
/O.CON.KGRB.SC.Y.0007.000000T0000Z-210201T1200Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
927 PM CST Sat Jan 30 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST MONDAY...

* WHAT...East winds of 15 to 25 kts with gusts to 30 kts, backing
  northeast on Sunday and then north Sunday night. Waves 4 to 8 ft
  tonight into Sunday morning, with the highest waves south of 
  Sturgeon Bay. Waves of 3 to 6 ft are expected Sunday afternoon 
  into Sunday night. Waves will slowly subside Monday morning.

* WHERE...Nearshore waters of Lake Michigan from Rock Island 
  Passage Sheboygan WI.

* WHEN...Until 6 AM CST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

Bersch
894 
WHUS73 KGRB 311042
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
442 AM CST Sun Jan 31 2021

LMZ541>543-311845-
/O.CON.KGRB.SC.Y.0007.000000T0000Z-210201T1200Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
442 AM CST Sun Jan 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST MONDAY...

* WHAT...Waves 4 to 7 ft subsiding to 2 to 4 ft late tonight. East
  winds 15 to 25 kts backing N this evening and then subsiding to
  10 to 20 kts late tonight. 

* WHERE...Rock Island Passage to Sturgeon Bay WI, Sturgeon Bay 
  to Two Rivers WI and Two Rivers to Sheboygan WI.

* WHEN...Until 6 AM CST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
Eckberg
989 
WHUS73 KGRB 311614
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
1014 AM CST Sun Jan 31 2021

LMZ541>543-010015-
/O.CON.KGRB.SC.Y.0007.000000T0000Z-210201T1200Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
1014 AM CST Sun Jan 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST MONDAY...

* WHAT...Waves 4 to 7 ft subsiding to 2 to 4 ft late tonight. 
  East winds 15 to 25 kts backing N this evening and then 
  subsiding to 10 to 20 kts late tonight.

* WHERE...Rock Island Passage to Sturgeon Bay WI, Sturgeon Bay 
  to Two Rivers WI and Two Rivers to Sheboygan WI.

* WHEN...Until 6 AM CST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
453 
WHUS73 KGRB 312109
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
309 PM CST Sun Jan 31 2021

LMZ541>543-010515-
/O.EXT.KGRB.SC.Y.0007.000000T0000Z-210201T1500Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
309 PM CST Sun Jan 31 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 AM CST MONDAY...

* WHAT...Northeast winds 15 to 25 kts backing north this evening
  and then decreasing to 10 to 20 kts late tonight. Waves 4 to 7 
  ft subsiding to 2 to 4 ft Monday morning. 

* WHERE...Rock Island Passage to Sturgeon Bay WI, Sturgeon Bay 
  to Two Rivers WI and Two Rivers to Sheboygan WI.

* WHEN...Until 9 AM CST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

Bersch
537 
WHUS73 KGRB 010327
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
927 PM CST Sun Jan 31 2021

LMZ541>543-011130-
/O.CON.KGRB.SC.Y.0007.000000T0000Z-210201T1500Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
927 PM CST Sun Jan 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST MONDAY...

* WHAT...Northeast winds 15 to 25 kts backing north this evening 
  and then decreasing to 10 to 20 kts late tonight. Waves 3 to 6 
  ft subsiding to 2 to 4 ft Monday morning.

* WHERE...Rock Island Passage to Sturgeon Bay WI, Sturgeon Bay 
  to Two Rivers WI and Two Rivers to Sheboygan WI.

* WHEN...Until 9 AM CST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

Bersch
020 
WHUS73 KGRB 010934
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
334 AM CST Mon Feb 1 2021

LMZ541>543-011500-
/O.CON.KGRB.SC.Y.0007.000000T0000Z-210201T1500Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
334 AM CST Mon Feb 1 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS
MORNING...

* WHAT...Waves 3 to 5 ft subsiding to 1 to 3 ft this morning.
  North winds 10 to 20 kts will gradually back NW 10 to 15 kts.

* WHERE...Rock Island Passage to Sturgeon Bay WI, Sturgeon Bay 
  to Two Rivers WI and Two Rivers to Sheboygan WI.

* WHEN...Until 9 AM CST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
Eckberg

The office that day

Everything else NWS Green Bay, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 29, 2:42 PM CSTWinter Weather AdvisoryGRBCalumet, Manitowoc, Waushara, Winnebago46 hr

Nearby

Small Craft Advisories in Wisconsin, 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.