181 FLUS43 KDTX 240739 HWODTX Hazardous Weather Outlook National Weather Service Detroit/Pontiac MI 339 AM EDT Thu Jul 24 2025 MIZ047>049-053>055-060>063-068>070-075-076-082-083-250900- Midland-Bay-Huron-Saginaw-Tuscola-Sanilac-Shiawassee-Genesee-Lapeer- St. Clair-Livingston-Oakland-Macomb-Washtenaw-Wayne-Lenawee-Monroe- 339 AM EDT Thu Jul 24 2025 This hazardous weather outlook is for southeast Michigan. .DAY ONE...Today and Tonight Heat advisory in effect today as heat indices top out around 102 degrees. Refer to the latest urgent weather message for details. Marginal Risk for severe weather in place from 2 PM Thursday till midnight. Damaging winds to 60 mph and heavy rainfall producing localized flooding will be the main threats. High degree of uncertainty exists in terms of coverage and exact timing. Storm motion looks to be east around 25 mph on average. .DAYS TWO THROUGH SEVEN...Friday through Wednesday Slight chance of thunderstorms on Friday toward southern Michigan border, with a better chance across all of southeast Michigan Saturday into Saturday night. And yet another chance of thundestorms arrives on Monday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated at this time. $$ LCZ460-LEZ444-LHZ361>363-421-422-441>443-462>464-250900- Lake St Clair- Michigan Waters of Lake Erie from Detroit River to North Cape MI- Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- Port Austin to Harbor Beach MI-Harbor Beach to Port Sanilac MI- Port Sanilac to Port Huron MI- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 339 AM EDT Thu Jul 24 2025 This hazardous weather outlook is for portions of Lake Erie, Lake Huron and Lake St Clair. .DAY ONE...Today and Tonight Small craft advisory for Saginaw Bay this afternoon into early evening for gusts up to 25 knots. Marginal Risk for severe weather in place from 2 PM Thursday till midnight. Damaging winds to 50 knots and heavy rainfall will be the main threats. High degree of uncertainty exists in terms of coverage and exact timing. Storm motion looks to be east around 20 knots on average. .DAYS TWO THROUGH SEVEN...Friday through Wednesday Slight chance of thunderstorms on Friday over Lake St Clair and Lake Erie, with a better chance across all marine waters Saturday into Saturday night. And yet another chance of thundestorms arrives on Monday. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed today and tonight. $$ You can obtain your latest National Weather Service forecasts online at www.weather.gov/detroit. SF