Alert archive / Illinois / Mesoscale Discussions in 2020

Mesoscale Discussion 1780

November 10, 202018 counties in Illinois; 12 counties in Wisconsin

The Storm Prediction Center issued this mesoscale discussion at Nov 10, 2020, 1:28 PM CST for 18 counties in Illinois; 12 counties in Wisconsin. It was in force for 92 min.

The area

The outline as issued.

The facts

Issued: Nov 10, 2020, 1:28 PM CST (19:28 UTC)
Expired: Nov 10, 2020, 3:00 PM CST
In force: 92 min
Issued by: the Storm Prediction Center
Concerning: Severe potential...tornado watch likely
Chance of a watch: 80%

All 30 counties

Boone County, IL, Cook County, IL, DeKalb County, IL, DuPage County, IL, Ford County, IL, Grundy County, IL, Kane County, IL, Kankakee County, IL, Kendall County, IL, Lake County, IL, LaSalle County, IL, Lee County, IL, Livingston County, IL, McHenry County, IL, Ogle County, IL, Stephenson County, IL, Will County, IL, Winnebago County, IL, Dodge County, WI, Green County, WI, Jefferson County, WI, Kenosha County, WI, Milwaukee County, WI, Ozaukee County, WI, Racine County, WI, Rock County, WI, Sheboygan County, WI, Walworth County, WI, Washington County, WI, Waukesha County, WI

The radar

The Chicago radar (KLOT), 81 km from the middle of the area, began a volume at 19:27 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Tornado Watch 505Nov 10, 2:05 PM CST

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 10, 8:52 AM CST	Mesoscale Discussion	SPC	Adams, Brown, Cass, Fulton, Hancock, McDonough and 2 more	113 min
Nov 10, 11:22 AM CST	Severe Thunderstorm Watch	SPC	Adams, Brown, Bureau, Calhoun, Carroll, Cass and 29 more	7 hr
Nov 10, 1:48 PM CST	Mesoscale Discussion	SPC	Adams, Brown, Bureau, Calhoun, Carroll, Cass and 34 more	87 min
Nov 10, 2:05 PM CST	Tornado Watch	SPC	Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 25 more	6 hr
Nov 10, 3:30 PM CST	Mesoscale Discussion	SPC	Boone, Lee, McHenry, Ogle, Winnebago	2 hr
Nov 10, 5:01 PM CST	Mesoscale Discussion	SPC	Bond, Champaign, Christian, Clark, Clay, Clinton and 26 more	119 min
Nov 10, 5:03 PM CST	Mesoscale Discussion	SPC	Cook, DuPage, Grundy, Iroquois, Kankakee, Lake and 2 more	57 min
Nov 10, 9:19 AM CST	Mesoscale Discussion	SPC	Barron, Dunn, Pierce, Rusk, Saint Croix, Sawyer	5 hr
Nov 10, 3:51 PM CST	Mesoscale Discussion	SPC	Burnett, Polk, Saint Croix	6 hr

Nearby

Mesoscale Discussions in Illinois, 2020 Mesoscale Discussions in Wisconsin, 2020 Every mesoscale discussion in 2020

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.