Jun 21, 2011
A warm front moved north across southern and central lower Michigan during the day of June 21st, allowing a much warmer and very humid airmass to advect into the area. Thunderstorms developed during the mid afternoon hours due to the building heat and instability and lake breeze convergence. The first of the thunderstorms developed near Holland around 4 p.m. just a couple miles inland of Lake Michigan where the convergence was the strongest. Numerous additional thunderstorms developed in the
Source: NOAA National Weather Service Storm Events Database (event 316402). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Isabella County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.