Alert archive / Ohio / Mesoscale Discussions in 2003

Mesoscale Discussion 1260

June 8, 200314 counties in Kentucky; 42 counties in Ohio

The Storm Prediction Center issued this mesoscale discussion at Jun 8, 2003, 2:09 PM EDT for 14 counties in Kentucky; 42 counties in Ohio. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Jun 8, 2003, 2:09 PM EDT (18:09 UTC)
Expired: Jun 8, 2003, 4:15 PM EDT
In force: 2 hr
Issued by: the Storm Prediction Center

All 56 counties

Anderson County, KY, Boone County, KY, Bracken County, KY, Campbell County, KY, Franklin County, KY, Gallatin County, KY, Grant County, KY, Harrison County, KY, Kenton County, KY, Mason County, KY, Owen County, KY, Pendleton County, KY, Robertson County, KY, Scott County, KY, Ashland County, OH, Brown County, OH, Butler County, OH, Champaign County, OH, Clark County, OH, Clermont County, OH, Clinton County, OH, Coshocton County, OH, Crawford County, OH, Delaware County, OH, Erie County, OH, Fairfield County, OH, Fayette County, OH, Franklin County, OH, Greene County, OH, Hamilton County, OH, Hancock County, OH, Hardin County, OH, Highland County, OH, Holmes County, OH, Huron County, OH, Knox County, OH, Licking County, OH, Logan County, OH, Lorain County, OH, Madison County, OH, Marion County, OH, Medina County, OH, Miami County, OH, Montgomery County, OH, Morrow County, OH, Pickaway County, OH, Richland County, OH, Ross County, OH, Sandusky County, OH, Seneca County, OH, Shelby County, OH, Summit County, OH, Union County, OH, Warren County, OH, Wayne County, OH, Wyandot County, OH

The radar

The Cincinnati radar (KILN), 87 km from the middle of the area, began a volume at 18:08 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Severe Thunderstorm Watch 489Jun 8, 4:15 PM EDT

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 6.2 hours before the alert went out and 86 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: 112 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 825 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 44 m²/s²
0-3 km storm-relative helicity: 75 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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
Jun 8, 10:53 AM EDT	Mesoscale Discussion	SPC	Boone, Campbell, Carroll, Gallatin, Grant, Henry and 8 more	2 hr
Jun 8, 11:40 AM EDT	Severe Thunderstorm Watch	SPC	Boone, Bracken, Campbell, Carroll, Gallatin, Grant and 8 more	5 hr
Jun 8, 1:08 PM EDT	Mesoscale Discussion	SPC	Adair, Allen, Anderson, Barren, Bath, Bell and 52 more	2 hr
Jun 8, 4:15 PM EDT	Severe Thunderstorm Watch	SPC	Adams, Ashland, Ashtabula, Athens, Belmont, Carroll and 35 more	5 hr
Jun 8, 6:29 PM EDT	Mesoscale Discussion	SPC	Belmont, Columbiana, Harrison, Jefferson, Mahoning, Monroe and 1 more	91 min

Nearby

Mesoscale Discussions in Ohio, 2003 Mesoscale Discussions in Kentucky, 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.