Alert archive / Ohio / Mesoscale Discussions in 2003

Mesoscale Discussion 2492

November 12, 20034 states

The Storm Prediction Center issued this mesoscale discussion at Nov 12, 2003, 6:13 PM EST for 4 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Nov 12, 2003, 6:13 PM EST (23:13 UTC)
Expired: Nov 12, 2003, 8:15 PM EST
In force: 2 hr
Issued by: the Storm Prediction Center

All 90 counties

Adams County, IN, Dearborn County, IN, Fayette County, IN, Franklin County, IN, Jay County, IN, Randolph County, IN, Ripley County, IN, Union County, IN, Wayne County, IN, Monroe County, MI, Allen County, OH, Ashland County, OH, Athens County, OH, Auglaize County, OH, Brown County, OH, Butler County, OH, Carroll County, OH, Champaign County, OH, Clark County, OH, Clermont County, OH, Clinton County, OH, Coshocton County, OH, Crawford County, OH, Cuyahoga County, OH, Darke County, OH, Defiance County, OH, Delaware County, OH, Erie County, OH, Fairfield County, OH, Fayette County, OH, Franklin County, OH, Fulton County, OH, Gallia County, OH, Geauga County, OH, Greene County, OH, Guernsey County, OH, Hamilton County, OH, Hancock County, OH, Hardin County, OH, Henry County, OH, Highland County, OH, Hocking County, OH, Holmes County, OH, Huron County, OH, Jackson County, OH, Knox County, OH, Lake County, OH, Licking County, OH, Logan County, OH, Lorain County, OH, Lucas County, OH, Madison County, OH, Marion County, OH, Medina County, OH, Meigs County, OH, Mercer County, OH, Miami County, OH, Montgomery County, OH, Morgan County, OH, Morrow County, OH, Muskingum County, OH, Noble County, OH, Ottawa County, OH, Paulding County, OH, Perry County, OH, Pickaway County, OH, Pike County, OH, Portage County, OH, Preble County, OH, Putnam County, OH, Richland County, OH, Ross County, OH, Sandusky County, OH, Seneca County, OH, Shelby County, OH, Stark County, OH, Summit County, OH, Trumbull County, OH, Tuscarawas County, OH, Union County, OH, Van Wert County, OH, Vinton County, OH, Warren County, OH, Washington County, OH, Wayne County, OH, Wood County, OH, Wyandot County, OH, Jackson County, WV, Mason County, WV, Wood County, WV

The radar

The Cincinnati radar (KILN), 98 km from the middle of the area, began a volume at 23:15 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.2 hours before the alert went out and 97 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: 604 m above ground
0-6 km bulk shear: 98 kt
0-1 km storm-relative helicity: 50 m²/s²
0-3 km storm-relative helicity: 120 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
Nov 12, 12:45 PM EST	Mesoscale Discussion	SPC	Adams, Allen, DeKalb, Huntington, Kosciusko, LaGrange and 5 more	3 hr
Nov 12, 2:36 PM EST	Mesoscale Discussion	SPC	Bartholomew, Brown, Clark, Crawford, Dearborn, Decatur and 20 more	2 hr
Nov 12, 3:20 PM EST	Tornado Watch	SPC	Adams, Dearborn, Fayette, Franklin, Jay, Randolph and 3 more	6 hr
Nov 12, 3:26 PM EST	Mesoscale Discussion	SPC	Adams, Allen, Blackford, DeKalb, Delaware, Jay and 2 more	2 hr
Nov 12, 1:50 PM EST	Severe Thunderstorm Watch	SPC	Hillsdale, Ingham, Jackson, Lenawee, Livingston, Macomb and 4 more	5 hr
Nov 12, 4:40 PM EST	Tornado Watch	SPC	Monroe, Washtenaw	5 hr

Nearby

Mesoscale Discussions in Ohio, 2003 Mesoscale Discussions in Indiana, 2003 Mesoscale Discussions in West Virginia, 2003 Every mesoscale discussion in 2003

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.