Alert archive / Ohio / Mesoscale Discussions in 2005

Mesoscale Discussion 1980

August 13, 200531 counties in Ohio

The Storm Prediction Center issued this mesoscale discussion at Aug 13, 2005, 7:48 PM EDT for 31 counties in Ohio. It was in force for 87 min.

The area

The outline as issued.

The facts

Issued: Aug 13, 2005, 7:48 PM EDT (23:48 UTC)
Expired: Aug 13, 2005, 9:15 PM EDT
In force: 87 min
Issued by: the Storm Prediction Center

All 31 counties

Allen County, OH, Ashland County, OH, Auglaize County, OH, Carroll County, OH, Crawford County, OH, Defiance County, OH, Erie County, OH, Fulton County, OH, Hancock County, OH, Hardin County, OH, Henry County, OH, Holmes County, OH, Huron County, OH, Knox County, OH, Marion County, OH, Medina County, OH, Morrow County, OH, Ottawa County, OH, Portage County, OH, Putnam County, OH, Richland County, OH, Sandusky County, OH, Seneca County, OH, Stark County, OH, Summit County, OH, Trumbull County, OH, Tuscarawas County, OH, Van Wert County, OH, Wayne County, OH, Wood County, OH, Wyandot County, OH

The radar

The Cleveland radar (KCLE), 91 km from the middle of the area, began a volume at 23:47 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, 11.8 hours before the alert went out and 183 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: 875 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 9 m²/s²
0-3 km storm-relative helicity: 51 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
Aug 13, 2:46 PM EDT	Mesoscale Discussion	SPC	Van Wert	119 min
Aug 13, 4:05 PM EDT	Severe Thunderstorm Watch	SPC	Allen, Ashland, Auglaize, Crawford, Defiance, Erie and 23 more	6 hr

Nearby

Mesoscale Discussions in Ohio, 2005 Every mesoscale discussion in 2005

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.