Alert archive / Ohio / Mesoscale Discussions in 2008

Mesoscale Discussion 2033

August 5, 20088 counties in Ohio; 4 counties in West Virginia

The Storm Prediction Center issued this mesoscale discussion at Aug 5, 2008, 3:30 AM EDT for 8 counties in Ohio; 4 counties in West Virginia. It was in force for 90 min.

The area

The outline as issued.

The facts

Issued: Aug 5, 2008, 3:30 AM EDT (07:30 UTC)
Expired: Aug 5, 2008, 5:00 AM EDT
In force: 90 min
Issued by: the Storm Prediction Center

Counties Athens County, OH, Gallia County, OH, Jackson County, OH, Lawrence County, OH, Meigs County, OH, Morgan County, OH, Vinton County, OH, Washington County, OH, Jackson County, WV, Mason County, WV, Wirt County, WV, Wood County, WV

The radar

The Charleston,WV radar (KRLX), 96 km from the middle of the area, began a volume at 07:29 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 00:00Z, 7.5 hours before the alert went out and 147 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: 128 J/kg
Mixed-layer CIN: -227 J/kg
Mixed-layer LCL: 1461 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 94 m²/s²
0-3 km storm-relative helicity: 188 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

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 4, 9:50 PM EDT	Mesoscale Discussion	SPC	Allen, Auglaize, Champaign, Clark, Darke, Defiance and 17 more	85 min
Aug 4, 10:43 PM EDT	Severe Thunderstorm Watch	SPC	Allen, Auglaize, Champaign, Clark, Clinton, Darke and 30 more	6 hr
Aug 5, 12:58 AM EDT	Mesoscale Discussion	SPC	Allen, Athens, Auglaize, Butler, Champaign, Clark and 38 more	62 min

Nearby

Mesoscale Discussions in Ohio, 2008 Mesoscale Discussions in West Virginia, 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.