Thunderstorms moved across Lake Michigan in the morning producing gusty winds.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS LOT wrote it up.
Thunderstorms moved across Lake Michigan in the morning producing gusty winds.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Chicago, IL wrote its last area forecast discussion before the first event at Aug 12, 6:01 AM CST, 4 hours 25 minutes earlier.
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</html>PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1120 AM CDT FRI AUG 12 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1109 AM HEAVY RAIN 1 W BROOKFIELD 41.82N 87.88W
08/12/2016 M1.30 INCH COOK IL COCORAHS
1 INCH OF RAIN FELL IN THE PAST 25 MINUTES.
&&
CThe Chicago radar (KLOT), 55 km away, was scanning. The volume nearest the first event began at 16:27 UTC.
1 marine thunderstorm wind. Local standard time, as filed.
Wind gusts greater than 40 knots from 1126 to 1130 CDT. Peak gust of 56 knots at 1128 CDT.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Lake Michigan in 2016Every state in 2016This day in weather history
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 659023.