Special Marine Warning for Grand Portage to Grand Marais MN; Grand Marais to Taconite Harbor MN; Outer Apostle Islands Beyond 5 NM from Mainland +1 more
Official alert fields
What you need to know
- Applies to
- 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, Outer Apostle Islands Beyond 5 NM from Mainland
- Effective
- Ended
- Official severity
- Severe
- Official urgency
- Immediate
- Official certainty
- Likely
What is happening
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... Outer Apostle Islands Beyond 5 NM from Mainland... * Until 700...
What the bulletin says to do
No separate action instruction was included in this NWS record. Read the complete official bulletin and follow local authorities.
Full official description
Bulletin details
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... Outer Apostle Islands Beyond 5 NM from Mainland... * Until 700 AM CDT. * At 553 AM CDT, severe thunderstorms were located along a line extending from near Grand Marais Harbor to 15 nm northeast of Tofte to near Tofte Safe Harbor, moving southeast at 35 knots. HAZARD...Wind gusts 34 knots or greater 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. * Locations impacted include... Tofte Safe Harbor, Mouth Of The Cross River, Grand Marais Harbor, and Tofte.
Lifecycle record
Official revisions
- Alert
Special Marine Warning issued July 27 at 5:54AM CDT until July 27 at 7:00AM CDT by NWS Duluth MN
Official revision
Source and limitations
Publisher: Weather Alert Watch. Primary source: NWS Duluth MN. This page reorganizes official fields and does not add a forecast or expand the affected area.
- CAP status
- Actual
- Message type
- Alert
- Last collected