Alert archive / Ohio / Mesoscale Discussions in 2003

Mesoscale Discussion 2168

August 16, 20034 states

The Storm Prediction Center issued this mesoscale discussion at Aug 16, 2003, 6:53 PM EDT for 4 states. It was in force for 97 min.

The area

The outline as issued.

The facts

Issued: Aug 16, 2003, 6:53 PM EDT (22:53 UTC)
Expired: Aug 16, 2003, 8:30 PM EDT
In force: 97 min
Issued by: the Storm Prediction Center

All 66 counties

Hillsdale County, MI, Lenawee County, MI, Monroe County, MI, Washtenaw County, MI, Allen County, OH, Ashland County, OH, Auglaize County, OH, Belmont County, OH, Carroll County, OH, Champaign County, OH, Columbiana County, OH, Coshocton County, OH, Crawford County, OH, Cuyahoga County, OH, Defiance County, OH, Delaware County, OH, Erie County, OH, Fairfield County, OH, Franklin County, OH, Fulton County, OH, Guernsey County, OH, Hancock County, OH, Hardin County, OH, Harrison County, OH, Henry County, OH, Holmes County, OH, Huron County, OH, Jefferson County, OH, Knox County, OH, Licking County, OH, Logan County, OH, Lorain County, OH, Lucas County, OH, Marion County, OH, Medina County, OH, Monroe County, OH, Morgan County, OH, Morrow County, OH, Muskingum County, OH, Noble County, OH, Ottawa County, OH, Paulding County, OH, Perry County, OH, Portage County, OH, Putnam County, OH, Richland County, OH, Sandusky County, OH, Seneca County, OH, Stark County, OH, Summit County, OH, Tuscarawas County, OH, Union County, OH, Washington County, OH, Wayne County, OH, Williams County, OH, Wood County, OH, Wyandot County, OH, Greene County, PA, Washington County, PA, Brooke County, WV, Hancock County, WV, Marshall County, WV, Ohio County, WV, Pleasants County, WV, Tyler County, WV, Wetzel County, WV

The radar

The Cleveland radar (KCLE), 97 km from the middle of the area, began a volume at 22:52 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, 10.9 hours before the alert went out and 190 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: 727 J/kg
Mixed-layer CIN: -47 J/kg
Mixed-layer LCL: 1056 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 51 m²/s²
0-3 km storm-relative helicity: 116 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.0

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 16, 1:24 PM EDT	Mesoscale Discussion	SPC	Barry, Branch, Calhoun, Cass, Clinton, Eaton and 14 more	2 hr
Aug 16, 2:00 PM EDT	Severe Thunderstorm Watch	SPC	Allegan, Barry, Branch, Calhoun, Cass, Clinton and 30 more	6 hr
Aug 16, 4:25 PM EDT	Severe Thunderstorm Watch	SPC	Berrien, Cass, Saint Joseph, Van Buren	6 hr
Aug 16, 7:14 PM EDT	Mesoscale Discussion	SPC	Berrien, Cass, Saint Joseph, Van Buren	91 min
Aug 16, 12:51 PM EDT	Mesoscale Discussion	SPC	Bradford, Cameron, Clarion, Clinton, Elk, Forest and 11 more	114 min
Aug 16, 1:25 PM EDT	Severe Thunderstorm Watch	SPC	Allegheny, Armstrong, Beaver, Bradford, Butler, Cameron and 21 more	6 hr
Aug 16, 6:26 PM EDT	Mesoscale Discussion	SPC	Armstrong, Bradford, Cameron, Clarion, Clearfield, Clinton and 12 more	64 min

Nearby

Mesoscale Discussions in Ohio, 2003 Mesoscale Discussions in West Virginia, 2003 Mesoscale Discussions in Michigan, 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.