Alert archive / Wisconsin / Small Craft Advisories in 2021

Small Craft Advisory 52, NWS Green Bay, WI

July 6, 2021

NWS Green Bay, WI issued this small craft advisory at Jul 6, 2021, 4:28 AM CDT. It took effect at Jul 6, 2021, 4:00 PM CDT. It was in force for 48 hr.

The area

The counties it named.

The facts

Issued
Jul 6, 2021, 4:28 AM CDT (09:28 UTC)
In effect from
Jul 6, 2021, 4:00 PM CDT
Expired
Jul 8, 2021, 4:00 PM CDT
In force
48 hr
Issued by
NWS Green Bay, WI

The text

As transmitted.

619 
WHUS73 KGRB 060928
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
428 AM CDT Tue Jul 6 2021

LMZ542-543-061730-
/O.NEW.KGRB.SC.Y.0052.210706T2100Z-210707T0600Z/
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
428 AM CDT Tue Jul 6 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO
1 AM CDT WEDNESDAY...

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

* WHERE...Lake Michigan nearshore waters from Sturgeon Bay to 
  Sheboygan.

* WHEN...From 4 PM this afternoon to 1 AM CDT Wednesday.

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

* ADDITIONAL DETAILS...The small craft advisory may need to be
  continued beyond 1am tonight. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
10 follow-up statements
213 
WHUS73 KGRB 061442
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
942 AM CDT Tue Jul 6 2021

LMZ521-522-541-062245-
/O.EXB.KGRB.SC.Y.0052.210706T2100Z-210707T1200Z/
Green Bay south of line from  Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
Green Bay south of line from  Oconto WI to Little Sturgeon Bay WI-
Rock Island Passage to Sturgeon Bay WI-
942 AM CDT Tue Jul 6 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO
7 AM CDT WEDNESDAY...

* WHAT...Northeast winds increasing to 15 to 25 kt with waves
  building to 2 to 4 ft.

* WHERE...Central and Southern Bay of Green Bay, and Lake 
  Michigan nearshore waters from Washington Island to Sturgeon 
  Bay.

* WHEN...From 4 PM this afternoon to 7 AM CDT Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ542-543-062245-
/O.EXT.KGRB.SC.Y.0052.210706T2100Z-210707T1200Z/
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
942 AM CDT Tue Jul 6 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 4 PM THIS AFTERNOON TO
7 AM CDT WEDNESDAY...

* WHAT...Northeast winds 15 to 25 kt with gusts up to 30 kt and
  waves building to 3 to 5 late this afternoon to 4 to 6 ft for
  tonight.

* WHERE...Lake Michigan nearshore waters from Sturgeon Bay to 
  Sheboygan.

* WHEN...From 4 PM this afternoon to 7 AM CDT Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
520 
WHUS73 KGRB 061956
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
256 PM CDT Tue Jul 6 2021

LMZ521-522-541>543-070400-
/O.CON.KGRB.SC.Y.0052.210706T2100Z-210707T1200Z/
Green Bay south of line from  Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
Green Bay south of line from  Oconto WI to Little Sturgeon Bay WI-
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
256 PM CDT Tue Jul 6 2021

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

* WHAT...Northeast winds increasing to 15 to 25 kt with waves
  building to 2 to 4 ft on the Bay, and 4 to 6 ft on the lake.

* WHERE...Central and Southern Bay of Green Bay, and Lake 
  Michigan nearshore waters from Washington Island to Sturgeon 
  Bay.

* WHEN...Thru 7 AM CDT Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
979 
WHUS73 KGRB 070245
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
945 PM CDT Tue Jul 6 2021

LMZ521-522-071045-
/O.EXT.KGRB.SC.Y.0052.000000T0000Z-210708T0000Z/
Green Bay south of line from  Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
Green Bay south of line from  Oconto WI to Little Sturgeon Bay WI-
945 PM CDT Tue Jul 6 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 PM CDT WEDNESDAY...

* WHAT...Northeast winds 15 to 25 kt with waves of 2 to 4 ft.

* WHERE...Central and Southern Bay of Green Bay.

* WHEN...Until 7 PM CDT Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ541>543-071045-
/O.EXT.KGRB.SC.Y.0052.000000T0000Z-210708T1500Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
945 PM CDT Tue Jul 6 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 AM CDT THURSDAY...

* WHAT...Northeast 15 to 25 kt with waves of 3 to 6 ft.

* WHERE...Lake Michigan nearshore waters from Washington Island 
  to Sheboygan.

* WHEN...Until 10 AM CDT Thursday.

* 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
812 
WHUS73 KGRB 071025
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
525 AM CDT Wed Jul 7 2021

LMZ521-522-071830-
/O.CON.KGRB.SC.Y.0052.000000T0000Z-210708T0000Z/
Green Bay south of line from  Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
Green Bay south of line from  Oconto WI to Little Sturgeon Bay WI-
525 AM CDT Wed Jul 7 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

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

* WHERE...Central and Southern Bay of Green Bay.

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ541>543-071830-
/O.CON.KGRB.SC.Y.0052.000000T0000Z-210708T1500Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
525 AM CDT Wed Jul 7 2021

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

* WHAT...Northeast winds 15 to 25 kts and waves 4 to 6 ft.

* WHERE...Lake Michigan nearshore waters from Washington Island 
  to Sheboygan.

* WHEN...Until 10 AM CDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
440 
WHUS73 KGRB 071514
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
1014 AM CDT Wed Jul 7 2021

LMZ521-522-072315-
/O.CON.KGRB.SC.Y.0052.000000T0000Z-210708T0000Z/
Green Bay south of line from  Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
Green Bay south of line from  Oconto WI to Little Sturgeon Bay WI-
1014 AM CDT Wed Jul 7 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

* WHAT...Northeast winds 15 to 20 kt with gusts up to 25 kt and 
  waves 3 to 5 ft.

* WHERE...Central and Southern Bay of Green Bay.

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ541>543-072315-
/O.CON.KGRB.SC.Y.0052.000000T0000Z-210708T1500Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
1014 AM CDT Wed Jul 7 2021

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

* WHAT...Northeast winds 15 to 25 kts and waves 3 to 5 ft building
  to 4 to 6 feet in the afternoon.

* WHERE...Lake Michigan nearshore waters from Washington Island 
  to Sheboygan.

* WHEN...Until 10 AM CDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
391 
WHUS73 KGRB 072051
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
351 PM CDT Wed Jul 7 2021

LMZ521-522-080500-
/O.EXT.KGRB.SC.Y.0052.000000T0000Z-210708T1500Z/
Green Bay south of line from  Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
Green Bay south of line from  Oconto WI to Little Sturgeon Bay WI-
351 PM CDT Wed Jul 7 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 AM CDT THURSDAY...

* WHAT...Northeast winds 15 to 25 kt with gusts up to 30 kt and 
  waves 3 to 5 ft.

* WHERE...Central and Southern Bay of Green Bay.

* WHEN...Until 10 AM CDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ541>543-080500-
/O.EXT.KGRB.SC.Y.0052.000000T0000Z-210708T2100Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
351 PM CDT Wed Jul 7 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM CDT THURSDAY...

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

* WHERE...Lake Michigan nearshore waters from Washington Island 
  to Sheboygan.

* WHEN...Until 4 PM CDT Thursday.

* 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
431 
WHUS73 KGRB 080233
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
933 PM CDT Wed Jul 7 2021

LMZ521-522-081045-
/O.CON.KGRB.SC.Y.0052.000000T0000Z-210708T1500Z/
Green Bay south of line from  Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
Green Bay south of line from  Oconto WI to Little Sturgeon Bay WI-
933 PM CDT Wed Jul 7 2021

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

* WHAT...Northeast winds 15 to 25 kt with gusts up to 30 kt and 
  waves 2 to 5 ft.

* WHERE...Central and Southern Bay of Green Bay.

* WHEN...Until 10 AM CDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ541>543-081045-
/O.CON.KGRB.SC.Y.0052.000000T0000Z-210708T2100Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
933 PM CDT Wed Jul 7 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM CDT
THURSDAY...

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

* WHERE...Lake Michigan nearshore waters from Washington Island 
  to Sheboygan.

* WHEN...Until 4 PM CDT Thursday.

* 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
970 
WHUS73 KGRB 080811
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
311 AM CDT Thu Jul 8 2021

LMZ521-522-081500-
/O.CON.KGRB.SC.Y.0052.000000T0000Z-210708T1500Z/
Green Bay south of line from  Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
Green Bay south of line from  Oconto WI to Little Sturgeon Bay WI-
311 AM CDT Thu Jul 8 2021

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

* WHAT...Northeast wind 10 to 20 kts with gusts to 25 kts
  decreasing. Waves 2 to 4 ft. 

* WHERE...Central and Southern Bay of Green Bay.

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ541>543-081615-
/O.CON.KGRB.SC.Y.0052.000000T0000Z-210708T2100Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
311 AM CDT Thu Jul 8 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM CDT THIS
AFTERNOON...

* WHAT...Northeast wind 10 to 20 kts with gusts to 25 kts. Waves 3
  to 5 ft. 

* WHERE...Lake Michigan nearshore waters from Washington Island 
  to Sheboygan.

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
263 
WHUS73 KGRB 081526
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
1026 AM CDT Thu Jul 8 2021

LMZ521-522-081630-
/O.EXP.KGRB.SC.Y.0052.000000T0000Z-210708T1500Z/
Green Bay south of line from  Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
Green Bay south of line from  Oconto WI to Little Sturgeon Bay WI-
1026 AM CDT Thu Jul 8 2021

...SMALL CRAFT ADVISORY HAS EXPIRED...

Winds and waves have subsided.

$$

LMZ541>543-082100-
/O.CON.KGRB.SC.Y.0052.000000T0000Z-210708T2100Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
1026 AM CDT Thu Jul 8 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM CDT THIS
AFTERNOON...

* WHAT...Northeast winds 10 to 15 kt with gusts up to 20 kt and 
  waves 2 to 5 ft.

* WHERE...Lake Michigan nearshore waters from Washington Island 
  to Sheboygan.

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
719 
WHUS73 KGRB 082059
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
359 PM CDT Thu Jul 8 2021

LMZ541>543-082200-
/O.EXP.KGRB.SC.Y.0052.000000T0000Z-210708T2100Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
359 PM CDT Thu Jul 8 2021

...SMALL CRAFT ADVISORY WILL EXPIRE AT 4 PM CDT THIS AFTERNOON...

Winds and waves continue to subside.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 5, 7:11 PM CDTSpecial Weather StatementGRBMarathon49 min
Jul 5, 8:03 PM CDTSpecial Weather StatementGRBOutagamie27 min
Jul 5, 8:23 PM CDTSpecial Weather StatementGRBCalumet, Outagamie, Winnebago52 min
Jul 6, 4:13 AM CDTBeach Hazards StatementGRBKewaunee, Manitowoc60 hr
Jul 6, 1:34 PM CDTSpecial Marine WarningGRB41 min
Jul 6, 1:36 PM CDTSpecial Weather StatementGRBBrown, Calumet, Kewaunee, Manitowoc, Outagamie, Shawano and 1 more54 min
Jul 6, 2:29 PM CDTSpecial Weather StatementGRBBrown, Calumet, Kewaunee, Manitowoc, Oconto, Outagamie and 2 more46 min
Jul 6, 3:14 PM CDTSpecial Weather StatementGRBOutagamie46 min
Jul 6, 3:16 PM CDTSpecial Weather StatementGRBBrown, Manitowoc44 min
Jul 6, 3:18 PM CDTSpecial Weather StatementGRBKewaunee42 min
Jul 6, 3:21 PM CDTSpecial Weather StatementGRBPortage39 min
Jul 6, 3:27 PM CDTSpecial Weather StatementGRBWood78 min
Jul 6, 3:35 PM CDTSpecial Weather StatementGRBLanglade40 min
Jul 6, 3:38 PM CDTSevere Thunderstorm WarningGRBMarathon, Wood52 min
Jul 6, 3:45 PM CDTSpecial Weather StatementGRBCalumet45 min
Jul 6, 3:52 PM CDTSpecial Weather StatementGRBOutagamie53 min
Jul 6, 4:03 PM CDTSpecial Weather StatementGRBMenominee42 min
Jul 6, 4:28 PM CDTSevere Thunderstorm WarningGRBMarathon, Portage, Wood62 min
Jul 6, 4:29 PM CDTSpecial Weather StatementGRBCalumet46 min
Jul 6, 4:44 PM CDTSpecial Weather StatementGRBMenominee46 min
Jul 6, 4:55 PM CDTSpecial Weather StatementGRBOconto50 min
Jul 6, 4:59 PM CDTSpecial Weather StatementGRBCalumet46 min
Jul 6, 5:11 PM CDTAreal Flood AdvisoryGRBMarathon, Portage, Shawano, Waupaca, Wood3 hr
Jul 6, 5:27 PM CDTSevere Thunderstorm WarningGRBMarathon, Portage, Shawano, Waupaca, Waushara, Wood48 min
Jul 6, 5:56 PM CDTSpecial Weather StatementGRBPortage49 min
Jul 6, 6:14 PM CDTSpecial Weather StatementGRBWinnebago46 min
Jul 6, 6:21 PM CDTAreal Flood AdvisoryGRBCalumet, Outagamie, Winnebago3 hr
Jul 6, 6:25 PM CDTSpecial Weather StatementGRBMarathon50 min

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.