Multiple Dense Fog Advisories and Special Marine Warnings were issued July 30 across Lake Superior, reducing visibility to 1/2 to 1 nautical mile. Warnings covered areas from Minnesota to Michigan and extended to Florida's east coast.
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* WHAT...Dense fog will reduce visibility to 1/2 to 1 NM. * WHERE...Grand Portage to Grand Marais MN, Grand Marais to Taconite Harbor MN and Taconite Harbor to Silver Bay Harbor MN. * WHEN...Until 4 PM CDT this afternoon. * IMPACTS...Low visibility will make navigation difficult.
SMWDLH The National Weather Service in Duluth MN has issued a * Special Marine Warning for... Grand Marais to Taconite Harbor MN... Grand Portage to Grand Marais MN... Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM... * Until 1215 PM CDT. * At 1115 AM CDT, strong thunderstorms were located along a line extending from 15 nm northwest of Grand Marais Harbor to near
SMWMQT The National Weather Service in Marquette has issued a * Special Marine Warning for... Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park... * Until 115 PM EDT. * At 1220 PM EDT, strong thunderstorms were located along a line extending from near Grand Portage Marina to 8 nm southeast of Horsesh
For the following areas... Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park... At 1225 PM EDT, strong thunderstorms were located along a line extending from near Grand Portage Marina to 10 nm southeast of Horseshoe Bay And Safe Harbor to near Grand Marais Harbor, moving east at 40 knots. HAZARD...Wi
SMWMLB The National Weather Service in Melbourne has issued a * Special Marine Warning for... Volusia-Brevard County Line to Sebastian Inlet 0-20 nm... Volusia-Brevard County Line to Sebastian Inlet 20-60 nm... * Until 145 PM EDT. * At 1238 PM EDT, strong thunderstorms were located along a line extending from near Playalinda Beach to 7 nm west of Rockledge to 31 nm west of Palm Bay, moving east at
For the following areas... Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park... At 1246 PM EDT, strong thunderstorms were located along a line extending from near Rock of Ages Light to 21 nm south of Grand Portage Marina to 15 nm northwest of The Western Lake Superior Buoy, moving southeast at 40 kno
For the following areas... Grand Marais to Taconite Harbor MN... Grand Portage to Grand Marais MN... Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM... At 1157 AM CDT, strong thunderstorms were located along a line extending from 8 nm southeast of Grand Marais Harbor to 7 nm southeast of Horseshoe Bay And Safe Harbor to near Grand Portage Marina, moving northwest a
For the following areas... Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park... At 102 PM EDT, strong thunderstorms were located along a line extending from near Rock of Ages Light to 25 nm southeast of Grand Portage Marina to 11 nm north of The Western Lake Superior Buoy, moving southeast at 30 knot
For the following areas... Volusia-Brevard County Line to Sebastian Inlet 0-20 nm... At 102 PM EDT, strong thunderstorms were located along a line extending from 39 nm northeast of Klondike Beach to 21 nm east of Playalinda Beach to 6 nm northeast of Port Canaveral, moving southeast at 35 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar indicated. IMPACT...Expect wind gusts in excess