Alert archive / Wisconsin / Mesoscale Discussions in 2016

Mesoscale Discussion 1157

July 5, 20164 states

The Storm Prediction Center issued this mesoscale discussion at Jul 5, 2016, 10:46 PM CDT for 4 states. It was in force for 89 min.

The area

The outline as issued.

The facts

Issued
Jul 5, 2016, 10:46 PM CDT (03:46 UTC)
Expired
Jul 6, 2016, 12:15 AM CDT
In force
89 min
Issued by
the Storm Prediction Center
All 50 counties

Allamakee County, IA, Benton County, IA, Buchanan County, IA, Cedar County, IA, Clayton County, IA, Clinton County, IA, Delaware County, IA, Dubuque County, IA, Fayette County, IA, Iowa County, IA, Jackson County, IA, Johnson County, IA, Jones County, IA, Linn County, IA, Winneshiek County, IA, Boone County, IL, Carroll County, IL, Jo Daviess County, IL, Ogle County, IL, Stephenson County, IL, Winnebago County, IL, Fillmore County, MN, Houston County, MN, Winona County, MN, Adams County, WI, Columbia County, WI, Crawford County, WI, Dane County, WI, Dodge County, WI, Grant County, WI, Green County, WI, Green Lake County, WI, Iowa County, WI, Jackson County, WI, Jefferson County, WI, Juneau County, WI, La Crosse County, WI, Lafayette County, WI, Marquette County, WI, Monroe County, WI, Portage County, WI, Richland County, WI, Rock County, WI, Sauk County, WI, Trempealeau County, WI, Vernon County, WI, Waupaca County, WI, Waushara County, WI, Winnebago County, WI, Wood County, WI

The radar

The La Crosse radar (KARX), 119 km from the middle of the area, began a volume at 03:44 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

Davenport, (KDVN), launched 00:00Z, 3.8 hours before the alert went out and 133 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-pSkew-T log-p diagram, Davenport, at 00:00Z on 2016-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1788 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 00:00Z on 2016-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 94 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1788 J/kg
Mixed-layer CIN
-111 J/kg
Mixed-layer LCL
1054 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
140 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.7

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.

IssuedProductOfficeCountiesLasted
Jul 5, 8:38 PM CDTMesoscale DiscussionSPCCarroll, Jo Daviess, Stephenson67 min
Jul 5, 9:50 PM CDTSevere Thunderstorm WatchSPCBoone, Carroll, DeKalb, Jo Daviess, Lee, Ogle and 4 more7 hr
Jul 6, 1:27 AM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DeWitt and 35 more2 hr
Jul 6, 1:55 AM CDTSevere Thunderstorm WatchSPCBureau, Cass, Champaign, Cook, DeWitt, DuPage and 33 more6 hr
Jul 6, 5:04 AM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Champaign, Christian, Clark and 41 more116 min
Jul 6, 10:32 AM CDTMesoscale DiscussionSPCAlexander, Pulaski, Union58 min
Jul 6, 10:48 AM CDTSevere Thunderstorm WatchSPCAlexander, Gallatin, Hardin, Jackson, Johnson, Massac and 5 more5 hr
Jul 6, 12:53 PM CDTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hardin, Jackson, Johnson and 6 more67 min
Jul 5, 7:38 PM CDTMesoscale DiscussionSPCClay, Dickinson, Emmet, O'Brien, Osceola, Winnebago97 min
Jul 5, 8:10 PM CDTSevere Thunderstorm WatchSPCHarrison, Monona, Pottawattamie, Shelby5 hr
Jul 5, 10:15 PM CDTMesoscale DiscussionSPCAudubon, Boone, Calhoun, Carroll, Crawford, Franklin and 13 more90 min
Jul 5, 10:35 PM CDTSevere Thunderstorm WatchSPCAdair, Audubon, Boone, Calhoun, Carroll, Cass and 22 more5 hr
Jul 5, 8:39 PM CDTMesoscale DiscussionSPCFlorence3 hr

Nearby

Mesoscale Discussions in Wisconsin, 2016Mesoscale Discussions in Iowa, 2016Mesoscale Discussions in Illinois, 2016Every 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.