980 WHUS53 KMKX 120007 SMWMKX LMZ646-673-675-120045- /O.NEW.KMKX.MA.W.0038.260612T0007Z-260612T0045Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Milwaukee/Sullivan WI 707 PM CDT Thu Jun 11 2026 The National Weather Service in Milwaukee/Sullivan has issued a * Special Marine Warning for... Nearshore waters from Wind Point WI TO Winthrop Harbor IL... Lake Michigan from North Point Light WI to Winthrop Harbor IL 5 nm off shore to mid lake... * Until 745 PM CDT. * At 707 PM CDT, strong thunderstorms were located along a line extending from 31 nm west of Saugatuck Pier Heads to 6 nm east of Waukegan Harbor, moving east at 55 knots. HAZARD...Wind gusts to nearly 50 knots. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Strong thunderstorms will remain over mainly open waters. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Tornado Watch remains in effect until 900 PM CDT for southeastern Wisconsin...and the adjacent waters of Lake Michigan. && LAT...LON 4248 8780 4261 8782 4298 8709 4246 8702 TIME...MOT...LOC 0007Z 276DEG 53KT 4267 8692 4234 8768 HAIL...0.00IN WIND...49KTS $$ HEEREN 752 WHUS51 KLWX 120007 SMWLWX ANZ533-541>543-120200- /O.NEW.KLWX.MA.W.0073.260612T0007Z-260612T0200Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Baltimore MD/Washington DC 807 PM EDT Thu Jun 11 2026 The National Weather Service in Sterling Virginia has issued a * Special Marine Warning for... Chesapeake Bay from North Beach to Drum Point MD... Choptank River to Cambridge MD and the Little Choptank River... Patuxent River to Broomes Island MD... Tangier Sound and the inland waters surrounding Bloodsworth Island... * Until 1000 PM EDT. * At 806 PM EDT, strong thunderstorms were located along a line extending from 11 nm north of Key Bridge to Leesylvania State Park, moving northeast at 50 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar indicated. IMPACT...Boaters in small craft could be thrown overboard by suddenly higher winds and waves capsizing their vessel. * Locations impacted include... Choptank River, Greenwell State Park, Saint Leonard Creek, Knapps Narrows Bridge, Tilghman Island, Blackwalnut Point, Shady Side, Dares Beach, James Island, Calvert Cliffs, Flag Harbor, Taylors Island, and Deale. PRECAUTIONARY/PREPAREDNESS ACTIONS... Frequent lightning is occurring with these storms. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. Report severe weather to the Coast Guard or the National Weather Service. && LAT...LON 3835 7654 3885 7652 3885 7649 3872 7652 3878 7629 3878 7627 3877 7630 3872 7630 3872 7629 3876 7623 3860 7605 3859 7605 3861 7628 3853 7628 3854 7620 3850 7633 3837 7628 3837 7600 TIME...MOT...LOC 0006Z 229DEG 48KT 3909 7711 3857 7724 HAIL...0.00IN WIND...>34KTS $$ LFR 229 WHUS51 KLWX 120007 RRA SMWLWX ANZ533-541-542-120200- /O.NEW.KLWX.MA.W.0074.260612T0007Z-260612T0200Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Baltimore MD/Washington DC 807 PM EDT Thu Jun 11 2026 The National Weather Service in Sterling Virginia has issued a * Special Marine Warning for... Chesapeake Bay from North Beach to Drum Point MD... Choptank River to Cambridge MD and the Little Choptank River... Patuxent River to Broomes Island MD... * Until 1000 PM EDT. * At 807 PM EDT, strong thunderstorms were located along a line extending from 11 nm north of Key Bridge to Leesylvania State Park, moving northeast at 50 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar indicated. IMPACT...Boaters in small craft could be thrown overboard by suddenly higher winds and waves capsizing their vessel. * Locations impacted include... Choptank River, Greenwell State Park, Saint Leonard Creek, Knapps Narrows Bridge, Tilghman Island, Blackwalnut Point, Dares Beach, James Island, Calvert Cliffs, Flag Harbor, North Beach, Drum Point, and Taylors Island. PRECAUTIONARY/PREPAREDNESS ACTIONS... Frequent lightning is occurring with these storms. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. Report severe weather to the Coast Guard or the National Weather Service. && LAT...LON 3861 7628 3853 7628 3854 7621 3849 7633 3833 7626 3832 7642 3842 7644 3836 7645 3835 7654 3842 7654 3843 7644 3850 7652 3872 7653 3878 7627 3877 7630 3872 7630 3876 7623 3859 7605 TIME...MOT...LOC 0007Z 229DEG 48KT 3909 7711 3857 7724 HAIL...0.00IN WIND...>34KTS $$ LFR 298 WHUS53 KMKX 120010 SMWMKX LMZ671-673-120045- /O.NEW.KMKX.MA.W.0039.260612T0010Z-260612T0045Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Milwaukee/Sullivan WI 710 PM CDT Thu Jun 11 2026 The National Weather Service in Milwaukee/Sullivan has issued a * Special Marine Warning for... Lake Michigan from Port Washington WI to Wind Point WI 5 nm off shore to mid lake... * Until 745 PM CDT. * At 709 PM CDT, strong thunderstorms were located along a line extending from 31 nm east of Port Washington to 33 nm east of Wind Pt., moving northeast at 50 knots. HAZARD...Wind gusts to nearly 50 knots. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Strong thunderstorms will remain over mainly open waters. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. && LAT...LON 4280 8742 4324 8754 4337 8714 4296 8709 TIME...MOT...LOC 0009Z 244DEG 48KT 4333 8716 4295 8703 HAIL...0.00IN WIND...49KTS $$ HEEREN 566 WHUS53 KMKX 120023 SMWMKX LMZ643-644-669-671-120115- /O.NEW.KMKX.MA.W.0040.260612T0023Z-260612T0115Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Milwaukee/Sullivan WI 723 PM CDT Thu Jun 11 2026 The National Weather Service in Milwaukee/Sullivan has issued a * Special Marine Warning for... Lake Michigan nearshore and open waters to mid lake from Sheboygan WI to North Port Light WI... * Until 815 PM CDT. * At 723 PM CDT, strong thunderstorms were located along a line extending from 20 nm east of Cleveland to 29 nm east of Bayside, moving east at 35 knots. HAZARD...Wind gusts to nearly 50 knots. SOURCE...Buoy. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Strong thunderstorms will remain over mainly open waters. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. && LAT...LON 4383 8710 4343 8715 4334 8714 4312 8790 4318 8788 4326 8791 4335 8788 4349 8779 4358 8778 4368 8770 4375 8771 4376 8770 4379 8772 4389 8773 4390 8759 TIME...MOT...LOC 0023Z 259DEG 36KT 4388 8727 4325 8723 HAIL...0.00IN WIND...49KTS $$ HEEREN 573 WHUS51 KLWX 120036 SMWLWX ANZ537-120230- /O.NEW.KLWX.MA.W.0075.260612T0036Z-260612T0230Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Baltimore MD/Washington DC 836 PM EDT Thu Jun 11 2026 The National Weather Service in Sterling Virginia has issued a * Special Marine Warning for... Tidal Potomac from Cobb Island MD to Smith Point VA... * Until 1030 PM EDT. * At 834 PM EDT, strong thunderstorms were located along a line extending from 7 nm west of Chesapeake Beach to 11 nm northeast of Port Tobacco River to U.S. 301 Nice Memorial Bridge, moving east at 45 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar indicated. IMPACT...Boaters in small craft could be thrown overboard by suddenly higher winds and waves capsizing their vessel. * Locations impacted include... Yeocomico River, Breton Bay, Saint Clements Bay, Piney Point, Mouth Of The Potomac River, Point Lookout, Tall Timbers, Cobb Island, Town Creek, Coltons Point, Nomini Bay, Coles Point, Saint George Island, Wicomico River, Saint Marys River, White Point Beach, Drum Point, and Colonial Beach. PRECAUTIONARY/PREPAREDNESS ACTIONS... Frequent lightning is occurring with these storms. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. && LAT...LON 3803 7651 3815 7661 3817 7685 3826 7686 3827 7700 3829 7687 3823 7658 3833 7652 3835 7640 3834 7643 3832 7646 3831 7647 3830 7637 3826 7640 3810 7633 3816 7637 3813 7648 3809 7633 3791 7627 TIME...MOT...LOC 0034Z 262DEG 46KT 3873 7670 3856 7684 3833 7700 HAIL...0.00IN WIND...>34KTS $$ LFR 175 WHUS53 KMKX 120047 SMWMKX LMZ673-675-120130- /O.NEW.KMKX.MA.W.0041.260612T0047Z-260612T0130Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Milwaukee/Sullivan WI 747 PM CDT Thu Jun 11 2026 The National Weather Service in Milwaukee/Sullivan has issued a * Special Marine Warning for... Lake Michigan from North Point Light WI to Winthrop Harbor IL 5 nm off shore to mid lake... * Until 830 PM CDT. * At 747 PM CDT, strong thunderstorms were located along a line extending from 30 nm west of Saugatuck Pier Heads to 6 nm east of Waukegan Harbor, moving southeast at 20 knots. HAZARD...Wind gusts to nearly 50 knots. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Strong thunderstorms will remain over mainly open waters. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. && LAT...LON 4247 8757 4289 8715 4286 8707 4246 8702 TIME...MOT...LOC 0047Z 301DEG 19KT 4270 8690 4236 8767 HAIL...0.00IN WIND...49KTS $$ HEEREN 370 WHUS53 KIWX 120048 SMWIWX LMZ043-046-080-120130- /O.NEW.KIWX.MA.W.0026.260612T0048Z-260612T0130Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Northern Indiana 848 PM EDT Thu Jun 11 2026 The National Weather Service in Northern Indiana has issued a * Special Marine Warning for... Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to mid-line of lake.... Michigan City IN to New Buffalo MI... New Buffalo MI to St Joseph MI... * Until 930 PM EDT. * At 847 PM EDT, a severe thunderstorm capable of producing waterspouts was located near Michigan City, moving northeast at 40 knots. HAZARD...Waterspouts, wind gusts in excess of 50 knots, and small hail. SOURCE...Radar. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves. * Locations impacted include... New Buffalo and Michigan City. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Tornado Watch remains in effect until 200 AM EDT for northwestern Indiana...southwestern Michigan...and the adjacent waters of Lake Michigan. Thunderstorms can produce sudden waterspouts. Waterspouts can easily overturn boats and create locally hazardous seas. Seek safe harbor immediately. Frequent lightning is occurring with this storm. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. && LAT...LON 4179 8696 4179 8697 4189 8697 4212 8653 4211 8649 4194 8658 4189 8662 4180 8675 4179 8676 4172 8691 TIME...MOT...LOC 0047Z 241DEG 41KT 4173 8697 WATERSPOUT...POSSIBLE HAIL...<.75IN WIND...50KTS $$ DN 003 WHUS51 KLWX 120057 SMWLWX ANZ534-543-120300- /O.NEW.KLWX.MA.W.0076.260612T0057Z-260612T0300Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Baltimore MD/Washington DC 857 PM EDT Thu Jun 11 2026 The National Weather Service in Sterling Virginia has issued a * Special Marine Warning for... Chesapeake Bay from Drum Point MD to Smith Point VA... Tangier Sound and the inland waters surrounding Bloodsworth Island... * Until 1100 PM EDT. * At 857 PM EDT, strong thunderstorms were located along a line extending from Matapeake to Flag Harbor to near Westmoreland State Park, moving east at 45 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar indicated. IMPACT...Boaters in small craft could be thrown overboard by suddenly higher winds and waves capsizing their vessel. * Locations impacted include... Breton Bay, Hooper Island Light, Magothy River, Southwest Middle Grounds, Deal Island, Cuckold Creek, Greenbury Point, Ewell, Coltons Point, Highland Beach, Point No Point, Thomas Point Light, Calvert Cliffs, The Targets, Richland Point Buoy, Greenwell State Park, Pinehurst, Saint Leonard Creek, Smith Island, and Piney Point. 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 3790 7625 3814 7650 3807 7633 3829 7640 3813 7653 3824 7680 3824 7669 3823 7659 3840 7655 3831 7640 3841 7654 3909 7645 3910 7643 3832 7640 3840 7622 3822 7603 3836 7586 3835 7586 3790 7591 TIME...MOT...LOC 0057Z 262DEG 43KT 3896 7638 3849 7650 3816 7680 HAIL...0.00IN WIND...>34KTS $$ LFR