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This application allows easy navigation of National Weather Service issued products with Valid Time Event Coding (VTEC).

13 Nov 2024 Update: The tool was updated to use non-hash link style URLs. A shim is in place to translate the old URLs to the new ones, so nothing should be broken (famous last words). This was done to allow the HTML5 History API to provide a better user experience.

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2025 [KGRB] GREEN_BAY Marine (MA) Warning (W) Number 1

Listing of Counties/Parishes/Zones Included in Product

RADAR Composite at Issuance Time

Storm Based Warning History

454 
WHUS53 KGRB 150659
SMWGRB
LMZ542-543-565-567-150830-
/O.NEW.KGRB.MA.W.0001.250315T0659Z-250315T0830Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Special Marine Warning
National Weather Service Green Bay WI
159 AM CDT Sat Mar 15 2025

The National Weather Service in Green Bay has issued a

* Special Marine Warning for...

Nearshore and open waters of Lake Michigan from Sturgeon Bay to
Sheboygan...

* Until 330 AM CDT.

* At 159 AM CDT, showers and isolated storms were located along a 
  line extending from 16 nm west of Cleveland to near Sheboygan to 
  19 nm southeast of Oostburg, moving north at 45 knots.

  HAZARD...Wind gusts to 40 knots.

  SOURCE...Radar.

  IMPACT...Small craft could be damaged in briefly higher winds and 
           suddenly higher waves.

* Locations impacted include...
  Kewaunee Pierhead Light, Rawley Point Light, Manitowoc, Two Rivers,
  and Algoma.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to safe harbor until hazardous weather passes.

&&

LAT...LON 4389 8773 4409 8765 4409 8770 4413 8760
      4416 8761 4417 8762 4414 8757 4414 8756
      4417 8758 4419 8751 4433 8754 4446 8750
      4447 8754 4448 8749 4449 8751 4479 8732
      4473 8675 4383 8709
TIME...MOT...LOC 0659Z 202DEG 45KT 4391 8812 4376 8769 4347 8740 

HAIL...0.00IN
WIND...40KTS

$$

Bersch
582 
FZUS73 KGRB 150821
MWSGRB

Marine Weather Statement
National Weather Service Green Bay WI
321 AM CDT Sat Mar 15 2025

LMZ542-543-565-567-150831-
/O.EXP.KGRB.MA.W.0001.000000T0000Z-250315T0830Z/
321 AM CDT Sat Mar 15 2025

...THE SPECIAL MARINE WARNING WILL EXPIRE AT 330 AM CDT...

The affected areas were... 

Nearshore and open waters of Lake Michigan from Sturgeon Bay to
Sheboygan...

The showers have weakened and no longer pose a significant threat to
boaters.

&&

LAT...LON 4389 8773 4409 8765 4409 8770 4413 8760
      4416 8761 4417 8762 4414 8757 4414 8756
      4417 8758 4419 8751 4433 8754 4446 8750
      4447 8754 4448 8749 4449 8751 4479 8732
      4473 8675 4383 8709
TIME...MOT...LOC 0821Z 202DEG 45KT 4486 8759 4471 8715 4442 8686 

$$

Uhlmann
Permalink to 202503150659-KGRB-WHUS53-SMWGRB
454 
WHUS53 KGRB 150659
SMWGRB
LMZ542-543-565-567-150830-
/O.NEW.KGRB.MA.W.0001.250315T0659Z-250315T0830Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Special Marine Warning
National Weather Service Green Bay WI
159 AM CDT Sat Mar 15 2025

The National Weather Service in Green Bay has issued a

* Special Marine Warning for...

Nearshore and open waters of Lake Michigan from Sturgeon Bay to
Sheboygan...

* Until 330 AM CDT.

* At 159 AM CDT, showers and isolated storms were located along a 
  line extending from 16 nm west of Cleveland to near Sheboygan to 
  19 nm southeast of Oostburg, moving north at 45 knots.

  HAZARD...Wind gusts to 40 knots.

  SOURCE...Radar.

  IMPACT...Small craft could be damaged in briefly higher winds and 
           suddenly higher waves.

* Locations impacted include...
  Kewaunee Pierhead Light, Rawley Point Light, Manitowoc, Two Rivers,
  and Algoma.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to safe harbor until hazardous weather passes.

&&

LAT...LON 4389 8773 4409 8765 4409 8770 4413 8760
      4416 8761 4417 8762 4414 8757 4414 8756
      4417 8758 4419 8751 4433 8754 4446 8750
      4447 8754 4448 8749 4449 8751 4479 8732
      4473 8675 4383 8709
TIME...MOT...LOC 0659Z 202DEG 45KT 4391 8812 4376 8769 4347 8740 

HAIL...0.00IN
WIND...40KTS

$$

Bersch
Permalink to 202503150821-KGRB-FZUS73-MWSGRB
582 
FZUS73 KGRB 150821
MWSGRB

Marine Weather Statement
National Weather Service Green Bay WI
321 AM CDT Sat Mar 15 2025

LMZ542-543-565-567-150831-
/O.EXP.KGRB.MA.W.0001.000000T0000Z-250315T0830Z/
321 AM CDT Sat Mar 15 2025

...THE SPECIAL MARINE WARNING WILL EXPIRE AT 330 AM CDT...

The affected areas were... 

Nearshore and open waters of Lake Michigan from Sturgeon Bay to
Sheboygan...

The showers have weakened and no longer pose a significant threat to
boaters.

&&

LAT...LON 4389 8773 4409 8765 4409 8770 4413 8760
      4416 8761 4417 8762 4414 8757 4414 8756
      4417 8758 4419 8751 4433 8754 4446 8750
      4447 8754 4448 8749 4449 8751 4479 8732
      4473 8675 4383 8709
TIME...MOT...LOC 0821Z 202DEG 45KT 4486 8759 4471 8715 4442 8686 

$$

Uhlmann

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