2 products issued by NWS for: 4NM NNE Port Hope MI
Hazardous Weather Outlook
Hazardous Weather Outlook National Weather Service Detroit/Pontiac MI 256 PM EDT Mon Apr 20 2026 LCZ460-LEZ444-LHZ361>363-421-422-441>443-462>464-211900- 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- 256 PM EDT Mon Apr 20 2026 This hazardous weather outlook is for portions of Lake Erie, Lake Huron and Lake St Clair. .DAY ONE...This Afternoon and Tonight Small Craft Advisories are in effect tonight for nearshore waters of southern Lake Huron including Saginaw Bay. Please refer to the latest Marine Weather Message (MWW) for more details. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday Small Craft Advisories continue on Tuesday for the nearshore waters of southern Lake Huron including Saginaw Bay. A slight chance of thunderstorms exists late Tuesday afternoon and evening over Lake Erie. No severe weather is anticipated. The next chance of thunderstorms arrives Friday evening. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed today and tonight. $$ You can obtain your latest National Weather Service forecasts online at www.weather.gov/detroit. SF
Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 334 PM EDT Mon Apr 20 2026 LHZ441>443-210830- /O.NEW.KDTX.SC.Y.0024.260421T0600Z-260421T1800Z/ Port Austin to Harbor Beach MI-Harbor Beach to Port Sanilac MI- Port Sanilac to Port Huron MI- 334 PM EDT Mon Apr 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM TO 2 PM EDT TUESDAY... * WHAT...Expect sustained winds up to 19 knots from the south with gusts up to 27 knots. The largest significant waves will be 4 feet with a potential maximum wave height of 5 feet. * WHERE...Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...The maximum winds are expected around 7 AM EDT Tuesday with the largest waves expected around 7 AM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$