Alert archive / Illinois / Mesoscale Discussions in 2017

Mesoscale Discussion 1768

November 18, 201717 counties in Illinois; 13 counties in Indiana; 8 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Nov 18, 2017, 5:29 AM CST for 17 counties in Illinois; 13 counties in Indiana; 8 counties in Missouri. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued: Nov 18, 2017, 5:29 AM CST (11:29 UTC)
Expired: Nov 18, 2017, 8:00 AM CST
In force: 3 hr
Issued by: the Storm Prediction Center
Chance of a watch: 20%

All 38 counties

Adams County, IL, Brown County, IL, Cass County, IL, Champaign County, IL, DeWitt County, IL, Ford County, IL, Fulton County, IL, Iroquois County, IL, Logan County, IL, Mason County, IL, McLean County, IL, Menard County, IL, Piatt County, IL, Pike County, IL, Schuyler County, IL, Tazewell County, IL, Vermilion County, IL, Benton County, IN, Carroll County, IN, Cass County, IN, Clinton County, IN, Fountain County, IN, Grant County, IN, Howard County, IN, Miami County, IN, Tippecanoe County, IN, Tipton County, IN, Wabash County, IN, Warren County, IN, White County, IN, Knox County, MO, Lewis County, MO, Linn County, MO, Macon County, MO, Marion County, MO, Monroe County, MO, Ralls County, MO, Shelby County, MO

The radar

The Lincoln radar (KILX), 7 km from the middle of the area, began a volume at 11:33 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.

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 18, 10:24 AM CST	Mesoscale Discussion	SPC	Alexander, Clark, Clay, Clinton, Crawford, Cumberland and 26 more	2 hr
Nov 18, 11:04 AM CST	Severe Thunderstorm Watch	SPC	Alexander, Clark, Clay, Clinton, Coles, Crawford and 28 more	8 hr
Nov 18, 1:48 PM CST	Mesoscale Discussion	SPC	Alexander, Clark, Clay, Crawford, Edgar, Edwards and 20 more	57 min
Nov 18, 4:44 PM CST	Mesoscale Discussion	SPC	Clark, Dearborn, Franklin, Jefferson, Ohio, Ripley and 2 more	61 min
Nov 18, 12:35 PM CST	Severe Thunderstorm Watch	SPC	Dunklin, Pemiscot	6 hr

Nearby

Mesoscale Discussions in Illinois, 2017 Mesoscale Discussions in Indiana, 2017 Mesoscale Discussions in Missouri, 2017 Every mesoscale discussion in 2017

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.