National Weather Service Marquette MI
9:49 PM Friday December 15.
occasional wave height is the
average of the highest 1/10 of the wave spectrum.
synopsis, a 29.6 inch low over eastern ontario will move east
through saturday. a high of 30.0 inches will slide southeast
across northern ontario saturday and strengthen to 30.4 inches by
saturday night just east of lake superior. the region will then
be influenced by a weak high of 30.2 inches centered in the
northern great plains sunday and monday before a 29.5 inch trough
moves through the upper great lakes monday night and into tuesday.
lake superior will be between systems wednesday as low pressure
of 29.5 inches pushes out of the rockies and into the plains.