Alert archive / Ohio / Mesoscale Discussions in 2005

Mesoscale Discussion 1864

July 25, 200513 counties in Ohio; 4 counties in West Virginia

The Storm Prediction Center issued this mesoscale discussion at Jul 25, 2005, 3:13 PM EDT for 13 counties in Ohio; 4 counties in West Virginia. It was in force for 92 min.

The area

The outline as issued.

The facts

Issued: Jul 25, 2005, 3:13 PM EDT (19:13 UTC)
Expired: Jul 25, 2005, 4:45 PM EDT
In force: 92 min
Issued by: the Storm Prediction Center

Counties Athens County, OH, Champaign County, OH, Clark County, OH, Fairfield County, OH, Fayette County, OH, Franklin County, OH, Hocking County, OH, Madison County, OH, Meigs County, OH, Pickaway County, OH, Ross County, OH, Vinton County, OH, Washington County, OH, Pleasants County, WV, Ritchie County, WV, Wirt County, WV, Wood County, WV

The radar

The Cincinnati radar (KILN), 100 km from the middle of the area, began a volume at 19:13 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 681Jul 25, 4:45 PM EDT

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.2 hours before the alert went out and 98 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: 2602 J/kg
Mixed-layer CIN: -80 J/kg
Mixed-layer LCL: 1086 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 39 m²/s²
0-3 km storm-relative helicity: 92 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.6

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
Jul 24, 11:28 PM EDT	Mesoscale Discussion	SPC	Belmont, Carroll, Columbiana, Geauga, Harrison, Jefferson and 4 more	92 min
Jul 24, 11:50 PM EDT	Severe Thunderstorm Watch	SPC	Ashtabula, Trumbull	4 hr
Jul 25, 9:53 AM EDT	Mesoscale Discussion	SPC	Allen, Ashland, Auglaize, Crawford, Cuyahoga, Defiance and 29 more	97 min
Jul 25, 10:25 AM EDT	Severe Thunderstorm Watch	SPC	Allen, Ashland, Auglaize, Crawford, Defiance, Erie and 21 more	8 hr
Jul 25, 12:57 PM EDT	Mesoscale Discussion	SPC	Allen, Ashland, Auglaize, Belmont, Carroll, Columbiana and 35 more	93 min
Jul 25, 2:10 PM EDT	Severe Thunderstorm Watch	SPC	Belmont, Carroll, Columbiana, Coshocton, Guernsey, Harrison and 10 more	5 hr
Jul 25, 2:53 PM EDT	Mesoscale Discussion	SPC	Ashland, Auglaize, Crawford, Erie, Hardin, Huron and 6 more	67 min
Jul 25, 4:45 PM EDT	Severe Thunderstorm Watch	SPC	Athens, Gallia, Hocking, Lawrence, Meigs, Morgan and 3 more	4 hr
Jul 25, 7:09 PM EDT	Mesoscale Discussion	SPC	Lawrence	66 min
Jul 25, 5:33 PM EDT	Mesoscale Discussion	SPC	Berkeley, Grant, Hampshire, Hardy, Jefferson, Mineral and 2 more	57 min
Jul 25, 6:00 PM EDT	Severe Thunderstorm Watch	SPC	Berkeley, Grant, Hampshire, Hardy, Jefferson, Mineral and 2 more	3 hr
Jul 25, 6:21 PM EDT	Mesoscale Discussion	SPC	Monongalia, Preston	24 min
Jul 25, 7:34 PM EDT	Mesoscale Discussion	SPC	Berkeley, Hampshire, Hardy, Jefferson, Morgan	56 min

Nearby

Mesoscale Discussions in Ohio, 2005 Mesoscale Discussions in West Virginia, 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.