Alert archive / Michigan / Mesoscale Discussions in 2022

Mesoscale Discussion 151

February 17, 202213 counties in Indiana; 22 counties in Michigan; 13 counties in Ohio

The Storm Prediction Center issued this mesoscale discussion at Feb 17, 2022, 8:07 PM EST for 13 counties in Indiana; 22 counties in Michigan; 13 counties in Ohio. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued: Feb 17, 2022, 8:07 PM EST (01:07 UTC)
Expired: Feb 18, 2022, 1:00 AM EST
In force: 5 hr
Issued by: the Storm Prediction Center
Concerning: Heavy snow

All 48 counties

Adams County, IN, Allen County, IN, Blackford County, IN, DeKalb County, IN, Elkhart County, IN, Huntington County, IN, Kosciusko County, IN, LaGrange County, IN, Noble County, IN, Steuben County, IN, Wabash County, IN, Wells County, IN, Whitley County, IN, Branch County, MI, Calhoun County, MI, Clinton County, MI, Eaton County, MI, Genesee County, MI, Hillsdale County, MI, Ingham County, MI, Jackson County, MI, Kalamazoo County, MI, Lapeer County, MI, Lenawee County, MI, Livingston County, MI, Macomb County, MI, Monroe County, MI, Oakland County, MI, Saint Clair County, MI, Saint Joseph County, MI, Sanilac County, MI, Shiawassee County, MI, Tuscola County, MI, Washtenaw County, MI, Wayne County, MI, Allen County, OH, Defiance County, OH, Fulton County, OH, Hancock County, OH, Henry County, OH, Lucas County, OH, Ottawa County, OH, Paulding County, OH, Putnam County, OH, Sandusky County, OH, Van Wert County, OH, Williams County, OH, Wood County, OH

The radar

The Detroit radar (KDTX), 86 km from the middle of the area, began a volume at 01:06 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 00:00Z, 1.1 hours before the alert went out and 89 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: 571 m above ground
0-6 km bulk shear: 106 kt
0-1 km storm-relative helicity: -265 m²/s²
0-3 km storm-relative helicity: 258 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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Nearby

Mesoscale Discussions in Michigan, 2022 Mesoscale Discussions in Indiana, 2022 Mesoscale Discussions in Ohio, 2022 Every mesoscale discussion in 2022

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.