Alert archive / Michigan / Mesoscale Discussions in 2015

Mesoscale Discussion 1010

June 13, 20155 counties in Michigan

The Storm Prediction Center issued this mesoscale discussion at Jun 13, 2015, 7:26 PM EDT for 5 counties in Michigan. It was in force for 64 min.

The area

The outline as issued.

The facts

Issued: Jun 13, 2015, 7:26 PM EDT (23:26 UTC)
Expired: Jun 13, 2015, 8:30 PM EDT
In force: 64 min
Issued by: the Storm Prediction Center
Chance of a watch: 5%

Counties Barry County, MI, Branch County, MI, Calhoun County, MI, Eaton County, MI, Kalamazoo County, MI

The radar

The Grand Rapids radar (KGRR), 73 km from the middle of the area, began a volume at 23:26 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

Detroit, MI (KDTX), launched 12:00Z, 11.4 hours before the alert went out and 150 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: 448 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 177 m²/s²
0-3 km storm-relative helicity: 219 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 13, 3:42 PM EDT	Mesoscale Discussion	SPC	Berrien, Cass	2 hr

Nearby

Mesoscale Discussions in Michigan, 2015 Every mesoscale discussion in 2015

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.