Illinois storm reports for September 18, 2015

Name: NOAA storm reports, Illinois, September 18, 2015
Creator: NOAA/NWS Storm Prediction Center

NOAA recorded 3 hail reports, 1 wind report and 1 tornado report in Illinois on September 18, 2015.

in Illinois; 5
Storm reports: Near 40.17, -87.85, IL; 1.0 in
Largest hail: About 28 miles from Chicago, IL; 49 mph
Highest gust: Highest rating EF1, about 30 miles from Chicago, IL; 1
Tornado reports

Hail, inches

0.75
1
1.5
2
2.5
3+

Dots: reports.

Wind report
Tornado and its path
Surveyed tornado path

Sources: NOAA/NWS Storm Prediction Center reports; damage surveys from the NWS Damage Assessment Toolkit

Hail, inches

0.75
1
1.5
2
2.5
3+

Dots: reports.

Wind report
Tornado and its path
Surveyed tornado path

Source: NOAA/NWS Storm Prediction Center, final severe weather database (from NOAA's Storm Data). Report day: 12:00 UTC on September 18, 2015 to 12:00 UTC the next day. Times are Central.

Select a dot or a path for the report. NWS survey teams walked the shaded paths after the storm; each is drawn at the widest width they found, so it can look wider than the damage at any one spot.

Reports by hour

Hail3, most at 9 PM

Wind1, most at 11 PM

Tornado1, most at 4 PM

Reports per hour, Central time. Each row has its own scale.

Every report

Source: NOAA/NWS Storm Prediction Center.

Time	Rating	Where	Path
4:44 PM	EF1	About 30 miles from Chicago, IL	2.6 mi long, 50 yd wide

Reports are what observers recorded near a location, not a complete record of every storm. They don’t describe conditions at any building.

Time	Size	Where
8:35 PM	0.75 in	Near 40.49, -87.69, IL
9:40 PM	0.75 in	Near 40.23, -87.92, IL
9:50 PM	1.0 in	Near 40.17, -87.85, IL