All the wet weather Michigan has seen in recent weeks will help raise water levels in the Great Lakes, but experts say it's uncertain by how much -- or how long it will last.
Drew Gronewold is a hydrologist with NOAA's Great Lakes Environmental Research Laboratory in Ann Arbor. He said Tuesday that runoff from melting snow and rain showers typically causes lake levels to rise in spring.
Gronewold said precipitation, runoff and evaporation rates together determine where lake levels go.
Keith Kompoltowicz of the U.S. Army Corps of Engineers tells The Holland Sentinel that Lakes Michigan and Huron have risen 6 inches this month. The Great Lakes basin in April has received more than 150 percent of average precipitation.
And while all of that is good news for boaters and those tracking lake levels, Kompoltowicz says several more wet winters and springs are needed to return the lakes to their normal levels.
The Associated Press contributed to this report.
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