Alert archive / Michigan / Mesoscale Discussions in 2014

Mesoscale Discussion 1037

June 17, 20148 counties in Michigan

The Storm Prediction Center issued this mesoscale discussion at Jun 17, 2014, 1:28 PM EDT for 8 counties in Michigan. It was in force for 62 min.

The area

The outline as issued.

The facts

Issued
Jun 17, 2014, 1:28 PM EDT (17:28 UTC)
Expired
Jun 17, 2014, 2:30 PM EDT
In force
62 min
Issued by
the Storm Prediction Center
Chance of a watch
20%

Counties Huron County, MI, Lapeer County, MI, Macomb County, MI, Monroe County, MI, Oakland County, MI, Saint Clair County, MI, Sanilac County, MI, Wayne County, MI

The radar

The Detroit radar (KDTX), 62 km from the middle of the area, began a volume at 17:28 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, 5.5 hours before the alert went out and 58 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, Detroit, MI at 12:00Z on 2014-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1232 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, Detroit, MI at 12:00Z on 2014-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 104 square meters per square second.19395878Sfc1 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
1232 J/kg
Mixed-layer CIN
-51 J/kg
Mixed-layer LCL
1086 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
104 m²/s²
0-3 km storm-relative helicity
127 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.6

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.

IssuedProductOfficeCountiesLasted
Jun 17, 5:58 AM EDTMesoscale DiscussionSPCAllegan, Ottawa62 min
Jun 17, 7:32 AM EDTMesoscale DiscussionSPCClare, Isabella, Lake, Manistee, Mason, Mecosta and 8 more88 min

Nearby

Mesoscale Discussions in Michigan, 2014Every 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.