Marine Weather Statement issued May 16 at 11:33PM EDT by NWS Detroit/Pontiac MI
The areas affected include... Detroit River... Lake St. Clair Open Lake (U.S. Portion)... Michigan Waters of Lake Erie from Detroit River to North Cape MI... At 1132 PM EDT, Doppler radar indicated strong thunderstorms, capable of producing winds up to 30 knots. These thunderstorms were located along a line extending from 47 nm east of Saugatuck Pier Heads to 61 nm southeast of South Haven Light to 72 nm southeast of St. Joseph, moving east at 40 knots. Persistent south wind gusts of 30 to 35 knots will precede this line of thunderstorms. strong thunderstorms will be near... North Cape
Special Marine Warning issued May 16 at 12:36AM EDT until May 16 at 12:45AM EDT by NWS Gaylord MI
The affected areas were... Grand Traverse Bay south of a line Grand Traverse Light to Norwood MI... Lake Michigan South of a line from Seul Choix Point to the Mackinac Bridge and North of a line from Charlevoix MI to South Fox Island 5NM offshore... Norwood MI to 5NM West of Mackinac Bridge including Little Traverse Bay... Sleeping Bear Point to Grand Traverse Light MI... The thunderstorms have moved out of the area and no longer pose a significant threat to boaters. A Tornado Watch remains in effect until 300 AM EDT for northern Michigan.
Special Marine Warning issued May 16 at 12:25AM EDT until May 16 at 1:45AM EDT by NWS Detroit/Pontiac MI
For the following areas... Inner Saginaw Bay SW of Point Au Gres to Bay Port MI... Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay... At 1225 AM EDT, strong thunderstorms were located along a line extending from 7 nm west of Pinconning to The Mouth Of The Saginaw River to 13 nm south of Quanicassee, moving northeast at 30 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar indicated. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. strong thunderstorms will be near... Bay City Liberty Harbor, Pinconning, and Quanicassee around
Special Marine Warning issued May 16 at 12:13AM EDT until May 16 at 1:15AM EDT by NWS Marquette MI
SMWMQT The National Weather Service in Marquette has issued a * Special Marine Warning for... 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... * Until 115 AM EDT. * At 1213 AM EDT, strong thunderstorms were located along a line extending from 9 nm south of Superior Shoal to 17 nm
Special Marine Warning issued May 16 at 12:13AM EDT until May 16 at 1:15AM EDT by NWS Gaylord MI
SMWAPX The National Weather Service in Gaylord has issued a * Special Marine Warning for... Lake Michigan South of a line from Seul Choix Point to the Mackinac Bridge and North of a line from Charlevoix MI to South Fox Island 5NM offshore... Norwood MI to 5NM West of Mackinac Bridge including Little Traverse Bay... Seul Choix Point to 5NM West of Mackinac Bridge... Straits of Mackinac within 5 nm of Mackinac Bridge including Mackinac Island... * Until 115 AM EDT. * At 1213 AM EDT, severe thunderstorms capable of producing waterspouts were located along a line extending from near
Marine Weather Statement issued May 15 at 11:39PM EDT by NWS Detroit/Pontiac MI
The areas affected include... Detroit River... Lake St. Clair Open Lake (U.S. Portion)... Michigan Waters of Lake Erie from Detroit River to North Cape MI... St. Clair River... At 1138 PM EDT, Doppler radar indicated strong thunderstorms, capable of producing winds great than 35 knots. These thunderstorms were located along a line extending from 46 nm southwest of Linwood to 60 nm west of Wyandotte to 65 nm west of Luna Pier, moving east at 95 knots. strong thunderstorms will be near... Luna Pier around 1215 AM EDT. Bolles Harbor Of Refuge, Monroe Harbor, Lake Erie Metropark Harbor, Elizabeth Park
FLIGHT ADVISORY GPS INTERFERENCE TESTING MARINE CORPS AIR STATION ARIZONA
FLIGHT ADVISORY GPS INTERFERENCE TESTING MARINE CORPS AIR STATION ARIZONA (MCASAZ) 25-03 19 – 22 May Marine Corps Air Station, AZ The entire flight advisory may be accessed and downloaded at the following address: https://www.faasafety.gov/files/notices/2025/May/MCASAZ_25-03_GPS_Flight_Advisory.pdf Pilots are advised to check NOTAMs frequently for possible changes prior to operations in the area. NOTAMs will be published at least 24 hours in advance of this event.
Special Marine Warning issued May 14 at 12:38AM EDT until May 14 at 2:45AM EDT by NWS Charleston SC
SMWCHS The National Weather Service in Charleston has issued a * Special Marine Warning for... Coastal waters from Edisto Beach SC to Savannah GA out 20 nm... Coastal waters from Savannah GA to Altamaha Sound GA out 20 nm ... including Grays Reef National Marine Sanctuary... * Until 245 AM EDT. * At 1237 AM EDT, a severe thunderstorm capable of producing waterspouts was located over Wassaw Sound Buoy, moving northeast at 10 knots. HAZARD...Waterspouts and wind gusts 35 knots or greater. SOURCE...Radar. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Small craft could be damaged in briefly
Marine Weather Statement issued May 12 at 12:43AM EDT by NWS Key West FL
The areas affected include... Hawk Channel and Straits of Florida from west end of Seven Mile Bridge to Halfmoon Shoal out 60 nm... Gulf Waters from East Cape Sable to Chokoloskee 20 to 60 nm out and beyond 5 fathoms... Gulf of America from west end of Seven Mile Bridge to Halfmoon Shoal out to 5 fathoms... Straits of Florida from Halfmoon Shoal to 20 nm west of Dry Tortugas out 60 nm... At 1242 AM EDT, National Weather Service meteorologists detected a strong line of thunderstorms, capable of producing wind gusts near 30 knots. This line of thunderstorms was
Special Marine Warning issued May 12 at 12:39AM EDT until May 12 at 1:15AM EDT by NWS Miami FL
SMWMFL The National Weather Service in Miami has issued a * Special Marine Warning for... Coastal waters from Chokoloskee to Bonita Beach FL out 20 NM... Coastal waters from East Cape Sable to Chokoloskee FL out 20 NM... Waters from Chokoloskee to Bonita Beach FL from 20 to 60 NM... * Until 115 AM EDT. * At 1238 AM EDT, strong thunderstorms were located along a line extending from near Cape Romano to 9 nm northwest of D Tower, moving north at 25 knots. HAZARD...Wind gusts to 40 knots. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and