How this edition was made: Every sentence is generated from a dated BoatNerd, NOAA or NWS source field and checked against those stored facts before publication. The lead was chosen by fixed rules. Estimates are marked as estimates and positions change after their report time. Verify time-sensitive details with the original provider. Report a correction.
THEO G, downbound, was reported at Downbound 11 and 12 at 12:22 p.m. ET; BoatNerd estimates it at Vantage Point / Port Huron around 1:38 p.m. ET. That time is a BoatNerd estimate, not a confirmed arrival or lock transit. The latest BoatNerd passage lists for 7 watch points held 44 distinct vessels with reports from the last 24 hours.
Soo Locks: VALERIE B, upbound, was reported at Soo Locks at 12:13 p.m. ET. CAPT. HENRY JACKMAN, downbound, was reported at Point Iroquois at 11:59 a.m. ET; BoatNerd estimates it at Soo Locks around 1:01 p.m. ET. Its AIS destination field reads THUNDER BAY. SHIRLEY ANN, downbound, was reported at Soo Locks at 11:29 a.m. ET. Its AIS destination field reads SAULT STE MARIE.
Port Huron / St. Clair River: ALGONOVA, upbound, was reported at Vantage Point / Port Huron at 10:43 a.m. ET. Its AIS destination field reads SSM. NORTHERN VENTURE, upbound, was reported at Dossin Museum / Detroit at 10:01 a.m. ET; BoatNerd estimates it at Vantage Point / Port Huron around 6:40 p.m. ET. Its AIS destination field reads MARBLEHEAD. TURNING POINT, upbound, was reported at Dossin Museum / Detroit at 9:41 a.m. ET.
Detroit River: PAUL R TREGURTHA, downbound, was reported at Vantage Point / Port Huron at 12:06 p.m. ET; BoatNerd estimates it at Dossin Museum / Detroit around 5:54 p.m. ET. Its AIS destination field reads TOLEDO. HERBERT C JACKSON, downbound, was reported at Crib Light at 11:41 a.m. ET; BoatNerd estimates it at Dossin Museum / Detroit around 12:51 p.m. ET. OLIVE L. MOORE, downbound, was reported at Dossin Museum / Detroit at 11:01 a.m. ET.
Welland Canal: SEA EAGLE II, inbound, was reported at Port Weller at 12:27 p.m. ET. Its AIS destination field reads DETROIT SMC ROUGE. ZEA LILIAN, outbound, was reported at Port Weller at 9:33 a.m. ET. RADCLIFFE R LATIMER, outbound, was reported at Port Weller at 8:49 a.m. ET. Its AIS destination field reads HALIFAX.
Straits of Mackinac: MARK W. BARKER, eastbound, was reported at Straits of Mackinac at 4:51 a.m. ET. Its AIS destination field reads STONEPORT. DEFIANCE, westbound, was reported at Straits of Mackinac at 4:11 a.m. ET. Its AIS destination field reads BUFFINGTON. ALGOMA INNOVATOR, eastbound, was reported at Straits of Mackinac at 2:36 a.m. ET. Its AIS destination field reads WINDSOR.
Duluth / Superior: AMERICAN MARINER, inbound, was reported at 1 Hour From Duluth at 12:22 p.m. ET; BoatNerd estimates it at Duluth / Superior around 1:15 p.m. ET. Its AIS destination field reads DULUTH. WHITEFISH BAY, inbound, was reported at Superior Entry at 11:58 a.m. ET.
Saginaw: no vessel reports from the last 24 hours were returned. That does not mean the waterway is empty.
Marquette C.G. (Lake Superior), NOAA station 9099018: 0.955 ft above Low Water Datum at 12:18 p.m. ET, preliminary data.
Holland (Lake Michigan), NOAA station 9087031: 1.89 ft above Low Water Datum at 12:18 p.m. ET, preliminary data.
Harbor Beach (Lake Huron), NOAA station 9075014: 1.161 ft above Low Water Datum at 12:18 p.m. ET, preliminary data.
Essexville (Saginaw Bay, Lake Huron), NOAA station 9075035: 1.339 ft above Low Water Datum at 12:18 p.m. ET, preliminary data.
Fairport (Lake Erie), NOAA station 9063053: 2.451 ft above Low Water Datum at 12:18 p.m. ET, preliminary data.
Oswego (Lake Ontario), NOAA station 9052030: 2.221 ft above Low Water Datum at 12:18 p.m. ET, preliminary data.
Each reading is one gauge above that lake's chart datum; it does not establish channel depth or vessel clearance.
Lake Superior, NWS forecast issued 10:01 a.m. ET: "Lake Superior remains situated between a 29.6 inch low over Wisconsin and a 30.2 inch high over Quebec. Ridging dominates over Lake Superior midweek as the low marches east and high pressure of 30.2 inches builds over the Dakotas by Wednesday afternoon."
Lake Michigan, NWS forecast issued 10:07 a.m. ET: "West to northwest winds are expected today, remaining breezy as low pressure departs east. Light north winds expected tonight night, with isolated thunderstorms possible across far southern portions of the lake."
Lake Huron, NWS forecast issued 9:52 a.m. ET: "Low pressure, 29.60 inches, moves across northern lower Michigan this morning. Departure of this system will then facilitate the passage of a cold front tomorrow morning, bringing breezy northwest flow across northern Lake Huron."
Lake Erie, NWS forecast issued 9:43 a.m. ET: "Low pressure 29.80 inches passes north of the lake today dragging a cold front over Lake Erie this evening. The front will push south Wednesday morning before high pressure 30.10 inches briefly builds north of the lake Wednesday night and Thursday."
Lake Ontario, NWS forecast issued 10:03 a.m. ET: "A cold front will sweep southeast across the lower Great Lakes this afternoon. Behind the cold front, a ridge averaging 30.2 inches will build in from northern Ontario through Thursday."