National Weather Service Detroit/Pontiac MI
3:55 AM Thursday October 19.
occasional wave height is the average of
the highest 1/10 of the wave spectrum.
synopsis, low pressure over james bay, 29.90 inches, will drag
a cold front through lake huron and southeastern michigan this
morning. the front will become stationary over northern ohio by
this evening, as surface high pressure at 30.20 inches expands
back into the ohio river valley. the next low pressure system will
gather itself over the northern high plains this weekend,
deepening to 29.20 inches by saturday morning.