Alert archive / Ohio / Excessive Heat Warnings in 2011

Excessive Heat Warning 1, NWS Wilmington, OH

July 11, 201114 counties in Ohio; 12 counties in Kentucky; 8 counties in Indiana

NWS Wilmington, OH issued this excessive heat warning at Jul 11, 2011, 4:06 AM EDT for 14 counties in Ohio; 12 counties in Kentucky; 8 counties in Indiana. It took effect at Jul 11, 2011, 12:00 PM EDT. It was in force for 30 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 11, 2011, 4:06 AM EDT (08:06 UTC)
In effect from: Jul 11, 2011, 12:00 PM EDT
Expired: Jul 12, 2011, 6:08 PM EDT
In force: 30 hr
Issued by: NWS Wilmington, OH

All 34 counties

Dearborn County, IN, Fayette County, IN, Franklin County, IN, Ohio County, IN, Ripley County, IN, Switzerland County, IN, Union County, IN, Wayne County, IN, Boone County, KY, Bracken County, KY, Campbell County, KY, Carroll County, KY, Gallatin County, KY, Grant County, KY, Kenton County, KY, Lewis County, KY, Mason County, KY, Owen County, KY, Pendleton County, KY, Robertson County, KY, Adams County, OH, Brown County, OH, Butler County, OH, Clermont County, OH, Clinton County, OH, Greene County, OH, Hamilton County, OH, Highland County, OH, Montgomery County, OH, Pike County, OH, Preble County, OH, Ross County, OH, Scioto County, OH, Warren County, OH

The radar

The Cincinnati radar (KILN), 58 km from the middle of the area, began a volume at 08:03 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, 8.1 hours before the alert went out and 60 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: 71 J/kg
Mixed-layer CIN: -303 J/kg
Mixed-layer LCL: 1558 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 21 m²/s²
0-3 km storm-relative helicity: 81 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this excessive heat warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Wilmington, OH wrote its last area forecast discussion before this excessive heat warning went out at Jul 11, 1:37 AM EDT, 2 hours 29 minutes earlier.

Area forecast discussion, Jul 11, 1:37 AM EDT, 2 hours 29 minutes before

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Hazardous weather outlook, Jul 10, 3:30 PM EDT, 12 hours 36 minutes before

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The office that day

Everything else NWS Wilmington, OH issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 11, 12:19 PM EDT	Special Weather Statement	ILN	Auglaize, Hardin, Mercer	86 min
Jul 11, 12:23 PM EDT	Heat Advisory	ILN	Adams, Brown, Butler, Clermont, Clinton, Highland and 3 more	30 hr
Jul 11, 12:42 PM EDT	Severe Thunderstorm Warning	ILN	Auglaize, Hardin, Mercer	48 min
Jul 11, 12:57 PM EDT	Areal Flood Advisory	ILN	Hardin	2 hr
Jul 11, 1:07 PM EDT	Severe Thunderstorm Warning	ILN	Auglaize, Champaign, Delaware, Hardin, Logan, Shelby and 1 more	38 min
Jul 11, 1:26 PM EDT	Severe Thunderstorm Warning	ILN	Auglaize, Champaign, Logan, Mercer, Miami, Shelby	49 min
Jul 11, 1:44 PM EDT	Severe Thunderstorm Warning	ILN	Champaign, Clark, Delaware, Franklin, Hardin, Licking and 4 more	46 min
Jul 11, 2:17 PM EDT	Severe Thunderstorm Warning	ILN	Champaign, Clark, Miami	43 min
Jul 11, 2:19 PM EDT	Severe Thunderstorm Warning	ILN	Fairfield, Franklin, Hocking, Licking, Pickaway	56 min
Jul 11, 2:22 PM EDT	Special Weather Statement	ILN	Fayette, Greene, Madison, Pickaway	53 min
Jul 11, 2:30 PM EDT	Areal Flood Advisory	ILN	Franklin	3 hr
Jul 11, 2:55 PM EDT	Severe Thunderstorm Warning	ILN	Champaign, Clark, Greene, Madison	50 min
Jul 11, 3:14 PM EDT	Severe Thunderstorm Warning	ILN	Fairfield, Hocking, Pickaway, Pike, Ross	24 min
Jul 11, 3:31 PM EDT	Severe Thunderstorm Warning	ILN	Fayette, Franklin, Greene, Madison, Pickaway	44 min
Jul 11, 3:50 PM EDT	Severe Thunderstorm Warning	ILN	Clinton, Fayette, Greene	40 min
Jul 11, 3:59 PM EDT	Areal Flood Advisory	ILN	Fayette, Pickaway	2 hr
Jul 11, 4:11 PM EDT	Special Weather Statement	ILN	Fayette, Ross	49 min
Jul 11, 4:29 PM EDT	Special Weather Statement	ILN	Clinton	61 min
Jul 11, 4:44 PM EDT	Severe Thunderstorm Warning	ILN	Adams, Brown, Clinton, Fayette, Highland, Pike and 1 more	61 min
Jul 11, 5:42 PM EDT	Special Weather Statement	ILN	Adams, Pike, Scioto	63 min
Jul 11, 5:58 PM EDT	Severe Thunderstorm Warning	ILN	Scioto	37 min
Jul 11, 6:03 PM EDT	Areal Flood Advisory	ILN	Scioto	117 min
Jul 11, 7:15 PM EDT	Special Weather Statement	ILN	Darke, Miami, Shelby	45 min
Jul 11, 7:19 PM EDT	Severe Thunderstorm Warning	ILN	Champaign, Clark, Darke, Miami, Shelby	41 min
Jul 11, 7:58 PM EDT	Severe Thunderstorm Warning	ILN	Champaign, Clark, Greene, Miami, Montgomery, Shelby	47 min

Nearby

Excessive Heat Warnings in Ohio, 2011 Excessive Heat Warnings in Kentucky, 2011 Excessive Heat Warnings in Indiana, 2011 Every excessive heat warning in 2011

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.