200 FZUS73 KDLH 300628 MWSDLH Marine Weather Statement National Weather Service Duluth MN 128 AM CDT Tue Jun 30 2026 LSZ142>146-162-300645- /O.CON.KDLH.MA.W.0023.000000T0000Z-260630T0645Z/ 128 AM CDT Tue Jun 30 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 145 AM CDT... For the following areas... Duluth MN to Port Wing WI... Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM... Port Wing to Sand Island WI... Silver Bay Harbor to Two Harbors MN... Taconite Harbor to Silver Bay Harbor MN... Two Harbors to Duluth MN... At 128 AM CDT, strong thunderstorms were located along a line extending from near Castle Danger to near Larsmont to near French River, moving east at 40 knots. HAZARD...Wind gusts to 40 knots and small hail. SOURCE...Radar indicated. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. Locations impacted include... Superior Entry, Knife River Marina, Castle Danger, Barkers Island, Duluth Harbor, Duluth Lift Bridge Channel, Twin Points Safe Harbor, Beaver Bay, Two Harbors Protected Access Agate Bay, Brule Point, McQuade Harbor, Superior Harbor, Larsmont, Split Rock Lighthouse, Port Wing Harbor, Stoney Point, Silver Bay Marina and Ore Dock, and French River. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Tornado Watch remains in effect until 200 AM CDT for northeastern Minnesota...northwestern Wisconsin...and the adjacent waters of Lake Superior. && LAT...LON 4669 9224 4672 9224 4680 9212 4715 9149 4734 9120 4698 9122 4679 9134 4673 9151 4667 9186 4667 9201 4671 9210 4666 9212 4668 9226 TIME...MOT...LOC 0628Z 265DEG 41KT 4714 9161 4696 9170 4683 9180 HAIL...<.75IN WIND...40KTS $$ JDS 256 FZUS73 KAPX 300630 MWSAPX Marine Weather Statement National Weather Service Gaylord MI 230 AM EDT Tue Jun 30 2026 LSZ321-322-301230- 230 AM EDT Tue Jun 30 2026 ...WATER LEVEL FLUCTUATIONS ON THE ST. MARY'S RIVER... A significant meteotsunami/seiche is ongoing on the St Mary's River, with a rise fall magnitude of ~4.0 ft over the last several hours. At least another significant water level fall and rise is expected between 2:30 AM and 6:30 AM. Largest changes in water levels...up to 3 feet or more...can be expected on upper portions of the river from Point Iroquois to the locks at Sault Ste. Marie. Water level changes up to one foot can be expected from below the Soo Locks to Munuscong Lake. Mariners should be aware of rapidly rising and falling water levels...particularly for operators above the Soo Locks. Be sure to monitor marine radio for information on this situation. && LAT...LON 4663 8477 4648 8458 4645 8448 4651 8438 4649 8430 4638 8449 4641 8465 4643 8466 4642 8473 4647 8506 4674 8507 4677 8500 4677 8493 4680 8483 $$ JLD 802 FZUS73 KDLH 300646 MWSDLH Marine Weather Statement National Weather Service Duluth MN 146 AM CDT Tue Jun 30 2026 LSZ141>143-162-300715- /O.CON.KDLH.MA.W.0024.000000T0000Z-260630T0715Z/ 146 AM CDT Tue Jun 30 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 215 AM CDT... For the following areas... Grand Marais to Taconite Harbor MN... Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM... Silver Bay Harbor to Two Harbors MN... Taconite Harbor to Silver Bay Harbor MN... At 146 AM CDT, strong thunderstorms were located along a line extending from 20 nm north of Tofte to 10 nm north of Tofte Safe Harbor to near Taconite Harbor to near Sugar Loaf Cove to near Silver Bay Marina and Ore Dock, moving northeast at 55 knots. HAZARD...Wind gusts to 40 knots. SOURCE...Radar indicated. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. Locations impacted include... Beaver Bay, Mouth Of The Cross River, Sugar Loaf Cove, Tofte Safe Harbor, Split Rock Lighthouse, Silver Bay Marina and Ore Dock, Taconite Harbor, and Tofte. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Tornado Watch remains in effect until 200 AM CDT for northeastern Minnesota...and the adjacent waters of Lake Superior. Move to safe harbor immediately as gusty winds and high waves are expected. && LAT...LON 4771 9034 4740 9027 4718 9145 4741 9117 4758 9088 4772 9055 4776 9039 TIME...MOT...LOC 0646Z 243DEG 57KT 4790 9097 4774 9092 4757 9096 4743 9107 4734 9121 HAIL...0.00IN WIND...40KTS $$ JDS