276 

WHUS53 KLOT 281207

SMWLOT

LMZ777-779-281245-

/O.NEW.KLOT.MA.W.0005.250328T1207Z-250328T1245Z/



BULLETIN - IMMEDIATE BROADCAST REQUESTED

Special Marine Warning

National Weather Service Chicago/Romeoville

707 AM CDT Fri Mar 28 2025



The National Weather Service in Chicago has issued a



* Special Marine Warning for...



  Open Waters from Winthrop Harbor to Michigan City out to Mid

  Lake...



* Until 745 AM CDT.



* At 706 AM CDT, a severe thunderstorm was located 15 nm northeast of

  Harrison-Dever Crib, moving east at 35 knots.



  HAZARD...Wind gusts 34 knots and large hail.



  SOURCE...Radar.



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

           suddenly higher waves. Large hail could result in 

           structural damage.



* The severe thunderstorm will remain over mainly open waters.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Boaters should seek safe harbor immediately until this storm passes.

Wind gusts 34 knots or greater, large hail, high waves, dangerous

lightning, and heavy rain are possible with this storm.



&&



LAT...LON 4203 8743 4225 8747 4229 8699 4213 8696

      4199 8697

TIME...MOT...LOC 1206Z 272DEG 37KT 4210 8733 



HAIL...>.75IN

WIND...>34KTS



$$



Petr






109 

FZUS73 KLOT 281242

MWSLOT



Marine Weather Statement

National Weather Service Chicago/Romeoville

742 AM CDT Fri Mar 28 2025



LMZ777-779-281252-

/O.EXP.KLOT.MA.W.0005.000000T0000Z-250328T1245Z/

742 AM CDT Fri Mar 28 2025



...THE SPECIAL MARINE WARNING WILL EXPIRE AT 745 AM CDT...



The affected areas were... 



  Open Waters from Winthrop Harbor to Michigan City out to Mid

Lake...



The thunderstorm has weakened and no longer poses a significant

threat to boaters.



&&



LAT...LON 4203 8743 4225 8747 4229 8699 4213 8696

      4199 8697

TIME...MOT...LOC 1242Z 272DEG 37KT 4209 8689 



$$



Kluber






181 

WHUS53 KGRR 281241

SMWGRR

LMZ844-878-281345-

/O.NEW.KGRR.MA.W.0002.250328T1241Z-250328T1345Z/



BULLETIN - IMMEDIATE BROADCAST REQUESTED

Special Marine Warning

National Weather Service Grand Rapids MI

841 AM EDT Fri Mar 28 2025



The National Weather Service in Grand Rapids has issued a



* Special Marine Warning for...

  Nearshore and Open Waters from St Joseph to South Haven MI...



* Until 945 AM EDT.



* At 839 AM EDT, a strong thunderstorm was located 16 nm west of St.

  Joseph Light, moving east at 35 knots.



  HAZARD...Wind gusts 34 knots or greater.



  SOURCE...Radar.



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

           suddenly higher waves.



* Locations impacted include...

  St. Joseph Light and St. Joseph.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Move to safe harbor until hazardous weather passes.



&&



LAT...LON 4213 8656 4212 8696 4228 8698 4229 8633

      4221 8639 4211 8649

TIME...MOT...LOC 1239Z 265DEG 33KT 4211 8687 



HAIL...0.00IN

WIND...>34KTS



$$



DUKE