WHUS53 KDLH 172029
SMWDLH
LSZ121-145>148-150-162-172130-
/O.NEW.KDLH.MA.W.0003.260417T2029Z-260417T2130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Special Marine Warning
National Weather Service Duluth MN
329 PM CDT Fri Apr 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...

* Until 430 PM CDT.

* At 329 PM CDT, strong thunderstorms were located along a line
  extending from 9 nm west of Port Wing Harbor to 25 nm southwest of
  Ashland Breakwater Lighthouse, moving northeast at 55 knots.

  HAZARD...Wind gusts 34 knots or greater and small hail.

  SOURCE...Radar.

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

* Locations impacted include...
  Ashland Breakwater Lighthouse, Ironwood Island, Basswood Island,
  Sand Island, Saxon Harbor, Stockton Island, Madeline Island, Devils
  Island, Cat Island, Manitou Island, North Twin Island, Herbster,
  Meyers Beach, York Island, Eagle Island, Apostle Islands National
  Lake Shore, La Pointe, Port Wing Harbor, Outer Island, and Michigan
  Island.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Frequent lightning is occurring with these storms. If caught on the
open water stay below deck if possible, keep away from ungrounded
metal objects.

&&

LAT...LON 4656 9053 4661 9079 4656 9092 4657 9097
      4667 9094 4670 9089 4676 9092 4687 9080
      4690 9080 4693 9086 4692 9095 4684 9110
      4683 9121 4672 9156 4684 9163 4736 9046
      4702 9020 4666 9044 4657 9043 4656 9041
TIME...MOT...LOC 2029Z 236DEG 57KT 4677 9162 4638 9138

HAIL...<.75IN
WIND...>34KTS

$$

PA