Alert archive / Ohio / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 119, NWS Wilmington, OH

July 20, 20135 counties in Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Jul 20, 2013, 3:53 PM EDT for 5 counties in Ohio. It was in force for 52 min. 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 20, 2013, 3:53 PM EDT (19:53 UTC)
Expired: Jul 20, 2013, 4:45 PM EDT
In force: 52 min
Issued by: NWS Wilmington, OH
Area: Storm-based polygon

Counties Clinton County, OH, Fayette County, OH, Highland County, OH, Pike County, OH, Ross County, OH

The radar

The Cincinnati radar (KILN), 38 km from the middle of the area, began a volume at 19:55 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 20, 1:07 PM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.9 hours before the alert went out and 37 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: 1768 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 683 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 70 m²/s²
0-3 km storm-relative helicity: 88 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.9

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Jul 20, 1:57 PM EDT, 1 hour 56 minutes earlier.

Area forecast discussion, Jul 20, 1:57 PM EDT, 1 hour 56 minutes before

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Hazardous weather outlook, Jul 20, 11:27 AM EDT, 4 hours 26 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WILMINGTON OH
1127 AM EDT SAT JUL 20 2013

INZ050-058-059-066-073>075-080-KYZ089>100-OHZ042>046-051>056-060>065-
070>074-077>082-088-210900-
WAYNE-FAYETTE IN-UNION IN-FRANKLIN IN-RIPLEY-DEARBORN-OHIO-
SWITZERLAND-CARROLL-GALLATIN-BOONE-KENTON-CAMPBELL-OWEN-GRANT-
PENDLETON-BRACKEN-ROBERTSON-MASON-LEWIS-DARKE-SHELBY-LOGAN-UNION OH-
DELAWARE-MIAMI-CHAMPAIGN-CLARK-MADISON-FRANKLIN OH-LICKING-PREBLE-
MONTGOMERY-GREENE-FAYETTE OH-PICKAWAY-FAIRFIELD-BUTLER-WARREN-
CLINTON-ROSS-HOCKING-HAMILTON-CLERMONT-BROWN-HIGHLAND-ADAMS-PIKE-
SCIOTO-
1127 AM EDT SAT JUL 20 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL
INDIANA...SOUTHEAST INDIANA...NORTHEAST KENTUCKY...NORTHERN
KENTUCKY...CENTRAL OHIO...MIAMI VALLEY OF OHIO...SOUTH CENTRAL OHIO
AND SOUTHWEST OHIO.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

A COLD FRONT WILL MOVE SOUTH THROUGH THE REGION TODAY. SHOWERS
AND THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG AND AHEAD OF THIS
FRONT. SEVERE THUNDERSTORMS WILL BE POSSIBLE...WITH DAMAGING WINDS
BEING THE PRIMARY THREAT. LARGE HAIL AND HEAVY RAINFALL MAY ALSO
OCCUR.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY BE NEEDED THIS AFTERNOON AND EARLY
EVENING.

OHZ026-034-035-210900-
HARDIN-MERCER-AUGLAIZE-
1127 AM EDT SAT JUL 20 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL OHIO.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SHOWERS AND THUNDERSTORMS WILL MOVE SOUTH OF THE AREA THIS
AFTERNOON. SEVERE WEATHER IS NOT EXPECTED.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Jul 20, 2:54 PM EDT, 59 minutes before

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Local storm report, Jul 20, 2:58 PM EDT, 55 minutes before

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Special weather statement, Jul 20, 3:33 PM EDT, 20 minutes before

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Special weather statement, Jul 20, 3:37 PM EDT, 16 minutes before

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Local storm report, Jul 20, 3:44 PM EDT, 9 minutes before

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Special weather statement, Jul 20, 3:48 PM EDT, 5 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 20, 8:27 AM EDT	Areal Flood Advisory	ILN	Hardin	3 hr
Jul 20, 9:34 AM EDT	Special Weather Statement	ILN	Logan	41 min
Jul 20, 10:12 AM EDT	Severe Thunderstorm Warning	ILN	Delaware, Logan, Union	48 min
Jul 20, 10:39 AM EDT	Special Weather Statement	ILN	Darke	51 min
Jul 20, 10:55 AM EDT	Special Weather Statement	ILN	Delaware	50 min
Jul 20, 11:00 AM EDT	Severe Thunderstorm Warning	ILN	Darke, Miami, Shelby	45 min
Jul 20, 11:35 AM EDT	Severe Thunderstorm Warning	ILN	Champaign, Clark, Miami, Montgomery, Shelby	55 min
Jul 20, 12:00 PM EDT	Areal Flood Advisory	ILN	Champaign, Clark, Logan, Miami, Shelby	2 hr
Jul 20, 12:20 PM EDT	Special Weather Statement	ILN	Madison	25 min
Jul 20, 12:21 PM EDT	Severe Thunderstorm Warning	ILN	Champaign, Clark, Franklin, Madison, Pickaway	39 min
Jul 20, 12:44 PM EDT	Special Weather Statement	ILN	Franklin	31 min
Jul 20, 1:45 PM EDT	Areal Flood Advisory	ILN	Fairfield, Hocking	3 hr
Jul 20, 2:47 PM EDT	Special Weather Statement	ILN	Greene	28 min
Jul 20, 2:54 PM EDT	Special Weather Statement	ILN	Preble	36 min
Jul 20, 3:26 PM EDT	Areal Flood Advisory	ILN	Montgomery, Preble	2 hr
Jul 20, 3:33 PM EDT	Special Weather Statement	ILN	Montgomery	27 min
Jul 20, 3:45 PM EDT	Areal Flood Advisory	ILN	Clinton, Greene, Warren	2 hr
Jul 20, 3:48 PM EDT	Special Weather Statement	ILN	Highland	42 min
Jul 20, 3:57 PM EDT	Severe Thunderstorm Warning	ILN	Hamilton	48 min
Jul 20, 4:03 PM EDT	Special Weather Statement	ILN	Warren	27 min
Jul 20, 4:10 PM EDT	Areal Flood Advisory	ILN	Clinton, Fayette, Highland, Pike, Ross	2 hr
Jul 20, 4:17 PM EDT	Severe Thunderstorm Warning	ILN	Clermont, Hamilton	43 min
Jul 20, 4:28 PM EDT	Special Weather Statement	ILN	Warren	32 min
Jul 20, 4:41 PM EDT	Special Weather Statement	ILN	Clermont	34 min
Jul 20, 4:57 PM EDT	Flash Flood Warning	ILN	Clinton, Fayette, Highland	3 hr
Jul 20, 5:24 PM EDT	Special Weather Statement	ILN	Highland	36 min
Jul 20, 5:57 PM EDT	Special Weather Statement	ILN	Scioto	33 min
Jul 20, 7:31 PM EDT	Areal Flood Warning	ILN	Highland	3 hr
Jul 20, 3:37 PM EDT	Special Weather Statement	ILN	Boone, Gallatin	23 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2013 Every severe thunderstorm warning in 2013

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.