188 FZUS73 KAPX 201802 MWSAPX Marine Weather Statement National Weather Service Gaylord MI 202 PM EDT Mon Jul 20 2026 LSZ321-322-202200- 202 PM EDT Mon Jul 20 2026 ...MORE WATER LEVEL FLUCTUATIONS ON THE ST. MARY'S RIVER... Water level gauges on the St. Mary's River are indicating rapidly changing water levels due to an approaching wake low pressure system. Water levels dropped over a foot at Point Iroquois between noon and 130PM, and in excess of 2 feet at SW Pier since 1pm. Several cycles of water level falls and rises are likely over the next several hours Largest changes in water levels...up to 3 to 4 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 4646 8454 4645 8448 4651 8438 4649 8427 4654 8420 4653 8413 4633 8412 4634 8428 4645 8435 4636 8456 4639 8464 4643 8466 4640 8483 4645 8506 4652 8512 4656 8509 4674 8507 4680 8483 $$ Dippman 148 FZUS73 KMQT 201827 MWSMQT Marine Weather Statement National Weather Service Marquette MI 227 PM EDT Mon Jul 20 2026 LSZ248-249-265-201836- /O.CAN.KMQT.MA.W.0058.000000T0000Z-260720T1845Z/ 227 PM EDT Mon Jul 20 2026 ...THE SPECIAL MARINE WARNING IS CANCELLED... The affected areas were... Huron Islands to Marquette MI... Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore... Marquette to Munising MI... The thunderstorm has moved out of the warned area and no longer poses a significant threat to boaters. && LAT...LON 4673 8732 4688 8720 4676 8669 4660 8688 TIME...MOT...LOC 1826Z 280DEG 41KT 4676 8684 $$ LSZ266-201845- /O.CON.KMQT.MA.W.0058.000000T0000Z-260720T1845Z/ 227 PM EDT Mon Jul 20 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 245 PM EDT... For the following areas... Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore... At 226 PM EDT, a strong thunderstorm was located 15 nm northeast of Laughing Whitefish Point, or 15 nm northwest of Grand Island, moving east at 40 knots. HAZARD...Wind gusts 34 knots or greater and small hail. SOURCE...Radar indicated. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. The strong 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, small hail, high waves, dangerous lightning, and heavy rain are possible with this storm. && LAT...LON 4673 8732 4688 8720 4676 8669 4660 8688 TIME...MOT...LOC 1826Z 280DEG 41KT 4676 8684 HAIL...<.75IN WIND...>34KTS $$ jp 825 FZUS72 KJAX 201835 MWSJAX Marine Weather Statement National Weather Service Jacksonville FL 235 PM EDT Mon Jul 20 2026 AMZ452-454-202000- 235 PM EDT Mon Jul 20 2026 A Marine Weather Statement has been issued for the following areas... Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM... Coastal waters from St. Augustine to Flagler Beach FL out 20 NM... At 235 PM EDT, Doppler radar indicated strong thunderstorms, capable of producing winds to around 30 knots. These thunderstorms were located along a line extending from 11 nm west of Vilano Beach to 16 nm west of Daytona Beach, moving north at 25 knots. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners can expect gusty winds to around 30 knots, locally higher waves, and lightning strikes. Boaters should seek safe harbor immediately until these storms pass. && LAT...LON 2946 8116 2953 8120 2955 8124 2963 8125 2965 8128 2973 8128 2981 8135 3010 8141 3022 8147 3070 8153 3065 8112 2988 8093 2948 8077 $$ 23 570 FZUS73 KMQT 201848 MWSMQT Marine Weather Statement National Weather Service Marquette MI 248 PM EDT Mon Jul 20 2026 LSZ249-201858- /O.CAN.KMQT.MA.W.0059.000000T0000Z-260720T1900Z/ 248 PM EDT Mon Jul 20 2026 ...THE SPECIAL MARINE WARNING IS CANCELLED... The affected areas were... Marquette to Munising MI... The thunderstorms have moved out of the warned area and no longer pose a significant threat to boaters. && LAT...LON 4663 8592 4663 8610 4661 8623 4659 8661 4661 8664 4665 8665 4664 8670 4672 8684 4724 8620 4716 8568 TIME...MOT...LOC 1848Z 286DEG 26KT 4718 8589 4654 8642 $$ LSZ250-251-266-267-201900- /O.CON.KMQT.MA.W.0059.000000T0000Z-260720T1900Z/ 248 PM EDT Mon Jul 20 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 300 PM EDT... For the following areas... Grand Marais to Whitefish Point MI... Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore... Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border... Munising to Grand Marais MI... At 248 PM EDT, strong thunderstorms were located along a line extending from 32 nm north of Muskallonge State Park to near Pictured Rocks National Lakeshore, moving east at 25 knots. HAZARD...Wind gusts to 40 knots and small hail. SOURCE...Radar indicated. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. Locations impacted include... Grand Sable Dunes and Pictured Rocks National Lakeshore. PRECAUTIONARY/PREPAREDNESS ACTIONS... Boaters should seek safe harbor immediately until these storms pass. Wind gusts to 40 knots, small hail, high waves, dangerous lightning, and heavy rain are possible with these storms. && LAT...LON 4663 8592 4663 8610 4661 8623 4659 8661 4661 8664 4665 8665 4664 8670 4672 8684 4724 8620 4716 8568 TIME...MOT...LOC 1848Z 286DEG 26KT 4718 8589 4654 8642 HAIL...<.75IN WIND...40KTS $$ jp 034 FZUS72 KMLB 201854 MWSMLB Marine Weather Statement National Weather Service Melbourne FL 254 PM EDT Mon Jul 20 2026 AMZ550-202000- 254 PM EDT Mon Jul 20 2026 ...A STRONG THUNDERSTORM APPROACHING THE WATERS... The areas affected include... Flagler Beach to Volusia-Brevard County Line 0-20 nm... At 254 PM EDT, Doppler radar indicated a strong thunderstorm, capable of producing winds to around 30 knots. This thunderstorm was located near South Daytona, moving north at 25 knots. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners can expect gusty winds to around 30 knots, locally higher waves, and lightning strikes. Boaters should seek safe harbor immediately until this storm passes. && LAT...LON 2942 8113 2943 8110 2944 8111 2943 8112 2945 8111 2945 8112 2946 8112 2946 8113 2947 8104 2948 8077 2894 8053 2891 8089 2938 8113 $$ Fehling