Alert archive / Illinois / Severe Thunderstorm Watches in 2013

Severe Thunderstorm Watch 110

April 16, 201325 counties in Illinois

The Storm Prediction Center issued this severe thunderstorm watch at Apr 16, 2013, 12:00 AM CDT for 25 counties in Illinois. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued
Apr 16, 2013, 12:00 AM CDT (05:00 UTC)
Expired
Apr 16, 2013, 3:44 AM CDT
In force
4 hr
Issued by
the Storm Prediction Center
Largest hail expected
1.5 in
Strongest gust expected
55 kt
All 25 counties

Bond County, IL, Brown County, IL, Calhoun County, IL, Cass County, IL, Christian County, IL, DeWitt County, IL, Effingham County, IL, Fayette County, IL, Greene County, IL, Jersey County, IL, Logan County, IL, Macon County, IL, Macoupin County, IL, Madison County, IL, Mason County, IL, McLean County, IL, Menard County, IL, Montgomery County, IL, Morgan County, IL, Moultrie County, IL, Piatt County, IL, Pike County, IL, Sangamon County, IL, Scott County, IL, Shelby County, IL

The radar

The Lincoln radar (KILX), 96 km from the middle of the area, began a volume at 05:04 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
5%
One or more EF2 to EF5 tornadoes
2%
Ten or more severe wind reports
20%
One or more gusts of 65 knots or more
10%
Ten or more severe hail reports
20%
One or more hailstones of 2 inches or more
20%
Six or more combined severe hail and wind reports
50%

Warnings issued inside it

2 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Apr 16, 12:03 AM CDTSevere Thunderstorm WarningILXLogan, Sangamon27 min
Apr 16, 12:25 AM CDTSevere Thunderstorm WarningILXDeWitt, Logan, Macon, Sangamon50 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 15, 8:59 PM CDTMesoscale DiscussionSPCMonroe61 min
Apr 16, 12:02 AM CDTMesoscale DiscussionSPCBond, Calhoun, Cass, Champaign, Christian, Coles and 21 more28 min
Apr 16, 2:54 PM CDTMesoscale DiscussionSPCGallatin, Hardin, Johnson, Massac, Pope, Pulaski96 min
Apr 15, 10:13 PM CDTSevere Thunderstorm WatchSPCAudrain, Barton, Bates, Benton, Boone, Callaway and 38 more6 hr
Apr 16, 1:08 AM CDTMesoscale DiscussionSPCAudrain, Barton, Bates, Benton, Boone, Callaway and 38 more67 min

Nearby

Severe Thunderstorm Watches in Illinois, 2013Every severe thunderstorm watch in 2013

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.