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WHUS53 KDLH 172231
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/O.NEW.KDLH.MA.W.0032.260717T2231Z-260718T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Special Marine Warning
National Weather Service Duluth MN
531 PM CDT Fri Jul 17 2026

The National Weather Service in Duluth MN has issued a

* Special Marine Warning for...
  Chequamegon Bay-Bayfield to Oak Point WI...
  Duluth MN to Port Wing WI...
  Lake Superior west of a line from Saxon Harbor WI to Grand Portage
  MN beyond 5NM...
  Oak Point to Saxon Harbor WI...
  Outer Apostle Islands Beyond 5 NM from Mainland...
  Port Wing to Sand Island WI...
  Sand Island to Bayfield WI...
  Two Harbors to Duluth MN...

* Until 730 PM CDT.

* At 530 PM CDT, strong thunderstorms were located along a line
  extending from near Apostle Island Sea Caves to 9 nm west of Port
  Wing Harbor, moving east at 25 knots.

  HAZARD...Wind gusts to 40 knots and small hail.

  SOURCE...Radar.

  IMPACT...Small craft could be damaged in briefly higher winds and
           suddenly higher waves.

* Strong thunderstorms will be near...
  Herbster, Sand Bay, Sand Island, Siskwit Bay, Apostle Island Sea
  Caves, Port Wing Harbor, Apostle Islands National Lake Shore,
  Brule Point, Eagle Island, and Bark Point around 535 PM CDT.
  Red Cliff and Basswood Island around 550 PM CDT.
  Oak Island, Madeline Island, and Hermit Island around 555 PM CDT.
  La Pointe and Stockton Island around 600 PM CDT.
  Chequamegon Bay and Michigan Island around 615 PM CDT.
  Oak Point and Ashland Breakwater Lighthouse around 630 PM CDT.
  Marble Point around 655 PM CDT.
  Saxon Harbor around 700 PM CDT.

Other locations impacted by strong thunderstorms include Ironwood
Island, Basswood Island, Marble Point, Stockton Island, Manitou
Island, Maikwe Bay, Hermit Island, Brule Point, Meyers Beach, and
Bark Bay.

With dense fog and smoke over the lake, you will not be able to see
the storm approaching. See safe harbor immediately.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to safe harbor immediately as gusty winds and high waves are
expected.

&&

LAT...LON 4654 9048 4664 9071 4656 9092 4657 9097
      4667 9094 4670 9089 4676 9092 4689 9080
      4690 9080 4693 9086 4692 9095 4684 9110
      4682 9118 4683 9121 4672 9160 4685 9183
      4712 9102 4691 9028 4665 9044 4657 9044
TIME...MOT...LOC 2230Z 282DEG 27KT 4692 9110 4680 9162

HAIL...<.75IN
WIND...40KTS

$$

PA