Storm Warning on the Manitou Passage

Here’s a photo from last week. Not many hours later, Leland Harbor was clocking sustained winds of 45 MPH and flying the flag with the black square on it.

Storm Warning
Formerly known as a “whole gale” warning, this signifies winds of 48 knots or more, or 48 to 63 knots (55 to 73 mph) in the case of a tropical cyclone.

The only bigger flag in their arsenal is the Hurricane Warning, and they don’t fly that on the Great Lakes, at least as far as I can tell from this page on coastal warnings at NOAA.