Alert archive / Illinois / Mesoscale Discussions in 2016

Mesoscale Discussion 1162

July 6, 20164 states

The Storm Prediction Center issued this mesoscale discussion at Jul 6, 2016, 5:04 AM CDT for 4 states. It was in force for 116 min.

The area

The outline as issued.

The facts

Issued: Jul 6, 2016, 5:04 AM CDT (10:04 UTC)
Expired: Jul 6, 2016, 7:00 AM CDT
In force: 116 min
Issued by: the Storm Prediction Center

All 77 counties

Des Moines County, IA, Henry County, IA, Jefferson County, IA, Lee County, IA, Van Buren County, IA, Adams County, IL, Brown County, IL, Cass County, IL, Champaign County, IL, Christian County, IL, Clark County, IL, Coles County, IL, Cumberland County, IL, DeWitt County, IL, Douglas County, IL, Edgar County, IL, Effingham County, IL, Fayette County, IL, Ford County, IL, Fulton County, IL, Greene County, IL, Hancock County, IL, Henderson County, IL, Iroquois County, IL, Jasper County, IL, Kankakee County, IL, Knox County, IL, Livingston County, IL, Logan County, IL, Macon County, IL, Macoupin County, IL, Marshall County, IL, Mason County, IL, McDonough County, IL, McLean County, IL, Menard County, IL, Mercer County, IL, Montgomery County, IL, Morgan County, IL, Moultrie County, IL, Peoria County, IL, Piatt County, IL, Pike County, IL, Sangamon County, IL, Schuyler County, IL, Scott County, IL, Shelby County, IL, Stark County, IL, Tazewell County, IL, Vermilion County, IL, Warren County, IL, Woodford County, IL, Benton County, IN, Boone County, IN, Carroll County, IN, Cass County, IN, Clay County, IN, Clinton County, IN, Fountain County, IN, Fulton County, IN, Jasper County, IN, LaPorte County, IN, Marshall County, IN, Montgomery County, IN, Newton County, IN, Parke County, IN, Porter County, IN, Pulaski County, IN, Putnam County, IN, Saint Joseph County, IN, Starke County, IN, Tippecanoe County, IN, Vermillion County, IN, Vigo County, IN, Warren County, IN, White County, IN, Clark County, MO

The radar

The Lincoln radar (KILX), 66 km from the middle of the area, began a volume at 10:04 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.

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 10.1 hours before the alert went out and 62 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 960 J/kg
Mixed-layer CIN: -160 J/kg
Mixed-layer LCL: 1184 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 70 m²/s²
0-3 km storm-relative helicity: 83 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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
Jul 5, 8:38 PM CDT	Mesoscale Discussion	SPC	Carroll, Jo Daviess, Stephenson	67 min
Jul 5, 9:50 PM CDT	Severe Thunderstorm Watch	SPC	Boone, Carroll, DeKalb, Jo Daviess, Lee, Ogle and 4 more	7 hr
Jul 5, 10:46 PM CDT	Mesoscale Discussion	SPC	Boone, Carroll, Jo Daviess, Ogle, Stephenson, Winnebago	89 min
Jul 6, 1:27 AM CDT	Mesoscale Discussion	SPC	Boone, Bureau, Carroll, Cook, DeKalb, DeWitt and 35 more	2 hr
Jul 6, 1:55 AM CDT	Severe Thunderstorm Watch	SPC	Bureau, Cass, Champaign, Cook, DeWitt, DuPage and 33 more	6 hr
Jul 6, 10:32 AM CDT	Mesoscale Discussion	SPC	Alexander, Pulaski, Union	58 min
Jul 6, 10:48 AM CDT	Severe Thunderstorm Watch	SPC	Alexander, Gallatin, Hardin, Jackson, Johnson, Massac and 5 more	5 hr
Jul 6, 12:53 PM CDT	Mesoscale Discussion	SPC	Alexander, Franklin, Gallatin, Hardin, Jackson, Johnson and 6 more	67 min
Jul 5, 7:38 PM CDT	Mesoscale Discussion	SPC	Clay, Dickinson, Emmet, O'Brien, Osceola, Winnebago	97 min
Jul 5, 8:10 PM CDT	Severe Thunderstorm Watch	SPC	Harrison, Monona, Pottawattamie, Shelby	5 hr
Jul 5, 10:15 PM CDT	Mesoscale Discussion	SPC	Audubon, Boone, Calhoun, Carroll, Crawford, Franklin and 13 more	90 min
Jul 5, 10:35 PM CDT	Severe Thunderstorm Watch	SPC	Adair, Audubon, Boone, Calhoun, Carroll, Cass and 22 more	5 hr
Jul 6, 1:50 AM CDT	Mesoscale Discussion	SPC	Barton, Jasper	85 min
Jul 6, 2:19 AM CDT	Severe Thunderstorm Watch	SPC	Barton, Bates, Cedar, Christian, Dade, Greene and 7 more	7 hr
Jul 6, 5:56 AM CDT	Mesoscale Discussion	SPC	Barton, Christian, Dade, Greene, Jasper, Lawrence and 2 more	2 hr

Nearby

Mesoscale Discussions in Illinois, 2016 Mesoscale Discussions in Indiana, 2016 Mesoscale Discussions in Iowa, 2016 Every mesoscale discussion in 2016

Sources

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