Alert archive / Illinois / Mesoscale Discussions in 2017

Mesoscale Discussion 681

May 10, 201725 counties in Illinois; 16 counties in Iowa; 7 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at May 10, 2017, 12:05 PM CDT for 25 counties in Illinois; 16 counties in Iowa; 7 counties in Missouri. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
May 10, 2017, 12:05 PM CDT (17:05 UTC)
Expired
May 10, 2017, 2:30 PM CDT
In force
2 hr
Issued by
the Storm Prediction Center
Chance of a watch
60%
All 48 counties

Appanoose County, IA, Davis County, IA, Des Moines County, IA, Henry County, IA, Jefferson County, IA, Keokuk County, IA, Lee County, IA, Louisa County, IA, Lucas County, IA, Mahaska County, IA, Marion County, IA, Monroe County, IA, Van Buren County, IA, Wapello County, IA, Washington County, IA, Wayne County, IA, Adams County, IL, Brown County, IL, Cass County, IL, Champaign County, IL, DeWitt County, IL, Ford County, IL, Fulton County, IL, Hancock County, IL, Henderson County, IL, Knox County, IL, Livingston County, IL, Logan County, IL, Marshall County, IL, Mason County, IL, McDonough County, IL, McLean County, IL, Menard County, IL, Mercer County, IL, Peoria County, IL, Piatt County, IL, Schuyler County, IL, Stark County, IL, Tazewell County, IL, Warren County, IL, Woodford County, IL, Adair County, MO, Clark County, MO, Knox County, MO, Lewis County, MO, Putnam County, MO, Schuyler County, MO, Scotland County, MO

The radar

The Quad Cities radar (KDVN), 120 km from the middle of the area, began a volume at 17:06 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.

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 10, 12:59 PM CDTSevere Thunderstorm WatchSPCAdams, Brown, Bureau, Cass, DeWitt, Fulton and 22 more7 hr
May 10, 3:48 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Champaign, Christian, DeWitt and 28 more87 min
May 10, 6:26 PM CDTMesoscale DiscussionSPCChampaign, Christian, Clark, Coles, Cumberland, DeWitt and 11 more94 min
May 10, 1:29 AM CDTMesoscale DiscussionSPCFremont, Mills61 min
May 10, 12:39 PM CDTMesoscale DiscussionSPCBates, Benton, Boone, Caldwell, Camden, Carroll and 23 more3 hr
May 10, 6:30 PM CDTSevere Thunderstorm WatchSPCBarton, Benton, Camden, Cedar, Dade, Dallas and 14 more2 hr

Nearby

Mesoscale Discussions in Illinois, 2017Mesoscale Discussions in Iowa, 2017Mesoscale Discussions in Missouri, 2017Every 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.