Alert archive / Ohio / Mesoscale Discussions in 2008

Mesoscale Discussion 351

March 4, 20087 counties in Indiana; Monroe County, Michigan; 24 counties in Ohio

The Storm Prediction Center issued this mesoscale discussion at Mar 4, 2008, 4:48 PM EST for 7 counties in Indiana; Monroe County, Michigan; 24 counties in Ohio. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued: Mar 4, 2008, 4:48 PM EST (21:48 UTC)
Expired: Mar 4, 2008, 8:45 PM EST
In force: 4 hr
Issued by: the Storm Prediction Center

All 32 counties

Adams County, IN, Allen County, IN, Blackford County, IN, DeKalb County, IN, Delaware County, IN, Jay County, IN, Wells County, IN, Monroe County, MI, Allen County, OH, Auglaize County, OH, Crawford County, OH, Defiance County, OH, Erie County, OH, Fulton County, OH, Hancock County, OH, Hardin County, OH, Henry County, OH, Huron County, OH, Lorain County, OH, Lucas County, OH, Marion County, OH, Mercer County, OH, Ottawa County, OH, Paulding County, OH, Putnam County, OH, Richland County, OH, Sandusky County, OH, Seneca County, OH, Van Wert County, OH, Williams County, OH, Wood County, OH, Wyandot County, OH

The radar

The Cleveland radar (KCLE), 156 km from the middle of the area, began a volume at 21:52 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, 9.8 hours before the alert went out and 173 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: 891 m above ground
0-6 km bulk shear: 68 kt
0-1 km storm-relative helicity: -60 m²/s²
0-3 km storm-relative helicity: 10 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
Mar 3, 8:31 PM EST	Mesoscale Discussion	SPC	Adams, Allen, Blackford, Boone, Clay, Clinton and 28 more	5 hr
Mar 4, 9:08 AM EST	Mesoscale Discussion	SPC	Delaware, Randolph, Wayne	4 hr
Mar 4, 2:28 PM EST	Mesoscale Discussion	SPC	Benton, Carroll, Cass, Fulton, Jasper, Kosciusko and 7 more	4 hr

Nearby

Mesoscale Discussions in Ohio, 2008 Mesoscale Discussions in Indiana, 2008 Mesoscale Discussions in Michigan, 2008 Every mesoscale discussion in 2008

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.