Alert archive / Wisconsin / Mesoscale Discussions in 2014

Mesoscale Discussion 1034

June 17, 20146 counties in Illinois; Allegan County, Ottawa County, Michigan; 7 counties in Wisconsin

The Storm Prediction Center issued this mesoscale discussion at Jun 17, 2014, 4:58 AM CDT for 6 counties in Illinois; Allegan County, Ottawa County, Michigan; 7 counties in Wisconsin. It was in force for 62 min.

The area

The outline as issued.

The facts

Issued: Jun 17, 2014, 4:58 AM CDT (09:58 UTC)
Expired: Jun 17, 2014, 6:00 AM CDT
In force: 62 min
Issued by: the Storm Prediction Center

Counties Boone County, IL, Cook County, IL, DuPage County, IL, Kane County, IL, Lake County, IL, McHenry County, IL, Allegan County, MI, Ottawa County, MI, Jefferson County, WI, Kenosha County, WI, Milwaukee County, WI, Racine County, WI, Rock County, WI, Walworth County, WI, Waukesha County, WI

The radar

The Milwaukee radar (KMKX), 74 km from the middle of the area, began a volume at 09:59 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

Green Bay/Straub, WI (KGRB), launched 00:00Z, 10.0 hours before the alert went out and 207 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2426 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 84 m²/s²
0-3 km storm-relative helicity: 26 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 16, 9:01 PM CDT	Severe Thunderstorm Watch	SPC	Bureau, Carroll, Henderson, Henry, Jo Daviess, Mercer and 5 more	8 hr
Jun 16, 9:24 PM CDT	Severe Thunderstorm Watch	SPC	Boone, DeKalb, Kane, LaSalle, Lee, McHenry and 2 more	6 hr
Jun 16, 11:40 PM CDT	Mesoscale Discussion	SPC	Boone, Bureau, Carroll, DeKalb, Grundy, Henry and 12 more	65 min
Jun 17, 1:29 AM CDT	Mesoscale Discussion	SPC	Boone, Bureau, DeKalb, Henderson, Henry, Kane and 11 more	91 min
Jun 17, 3:41 AM CDT	Mesoscale Discussion	SPC	Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 19 more	64 min
Jun 17, 4:11 AM CDT	Tornado Watch	SPC	Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 16 more	3 hr
Jun 17, 1:58 PM CDT	Mesoscale Discussion	SPC	Bureau, Grundy, Henry, Iroquois, Kankakee, Kendall and 11 more	92 min
Jun 17, 6:32 AM CDT	Mesoscale Discussion	SPC	Clare, Isabella, Lake, Manistee, Mason, Mecosta and 8 more	88 min
Jun 17, 12:28 PM CDT	Mesoscale Discussion	SPC	Huron, Lapeer, Macomb, Monroe, Oakland, Saint Clair and 2 more	62 min

Nearby

Mesoscale Discussions in Wisconsin, 2014 Mesoscale Discussions in Illinois, 2014 Mesoscale Discussions in Michigan, 2014 Every mesoscale discussion in 2014

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.