The National Weather Service Marquette will be replacing some radar equipment starting Monday September 9th through Friday September 13th. During that time, you will see a “Down for Maintenance” indicator where the radar image typically resides on our home page.
For more info, see their blog article: https://www.weather.gov/mqt/KMQT_SLEP
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UPDATE 9/11/19: Apparently the NWS radar techs wrapped up their work 2 days early. The radar was returned to service this afternoon.