Alert archive / Ohio / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 110, NWS Wilmington, OH

June 9, 2009Clinton County, Warren County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Jun 9, 2009, 5:57 AM EDT for Clinton County, Warren County, Ohio. It was in force for 48 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: Jun 9, 2009, 5:57 AM EDT (09:57 UTC)
Expired: Jun 9, 2009, 6:45 AM EDT
In force: 48 min
Issued by: NWS Wilmington, OH
Area: Storm-based polygon

Counties Clinton County, OH, Warren County, OH

The radar

The Cincinnati radar (KILN), 14 km from the middle of the area, began a volume at 09:58 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, 10.0 hours before the alert went out and 16 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: 1053 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 1428 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 188 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 4.1

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 Jun 9, 4:52 AM EDT, 1 hour 5 minutes earlier.

Area forecast discussion, Jun 9, 4:52 AM EDT, 1 hour 5 minutes before

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Hazardous weather outlook, Jun 9, 5:00 AM EDT, 57 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WILMINGTON OH
500 AM EDT TUE JUN 9 2009

INZ050-058-059-066-073>075-080-KYZ089>100-OHZ026-034-035-042>046-
051>056-060>065-070>074-077>082-088-100900-
WAYNE-FAYETTE IN-UNION IN-FRANKLIN IN-RIPLEY-DEARBORN-OHIO-
SWITZERLAND-CARROLL-GALLATIN-BOONE-KENTON-CAMPBELL-OWEN-GRANT-
PENDLETON-BRACKEN-ROBERTSON-MASON-LEWIS-HARDIN-MERCER-AUGLAIZE-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-
500 AM EDT TUE JUN 9 2009

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

.DAY ONE...TODAY AND TONIGHT.

A FEW SEVERE THUNDERSTORMS ARE EXPECTED TODAY.

AN UNSTABLE ATMOSPHERE EARLY THIS MORNING WILL BECOME VERY
UNSTABLE THIS AFTERNOON. SCATTERED THUNDERSTORMS OCCURRING IN THIS
ENVIRONMENT WILL HAVE THE POTENTIAL TO BECOME SEVERE WITH DAMAGING
WINDS AND LARGE HAIL.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

SHOWERS AND THUNDERSTORMS ARE FORECAST TO DEVELOP ON WEDNESDAY.
INSTABILITY WILL NOT BE AS STRONG AS TUESDAY...BUT WIND FIELDS
WILL BE MORE FAVORABLE. THUS ONCE AGAIN THERE WILL BE THE
POTENTIAL FOR SEVERE THUNDERSTORMS...PRIMARILY WEDNESDAY AFTERNOON
AND EVENING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED.

In the hours before

Local storm report, Jun 9, 4:10 AM EDT, 1 hour 47 minutes before

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Local storm report, Jun 9, 4:33 AM EDT, 1 hour 24 minutes before

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Special weather statement, Jun 9, 4:33 AM EDT, 1 hour 24 minutes before

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Local storm report, Jun 9, 5:24 AM EDT, 33 minutes before

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Local storm report, Jun 9, 5:31 AM EDT, 26 minutes before

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Local storm report, Jun 9, 5:42 AM EDT, 15 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
Jun 8, 11:59 PM EDT	Severe Thunderstorm Warning	ILN	Auglaize, Mercer	46 min
Jun 9, 2:31 AM EDT	Severe Thunderstorm Warning	ILN	Darke	29 min
Jun 9, 2:58 AM EDT	Severe Thunderstorm Warning	ILN	Darke	47 min
Jun 9, 3:50 AM EDT	Severe Thunderstorm Warning	ILN	Preble	25 min
Jun 9, 4:52 AM EDT	Areal Flood Advisory	ILN	Montgomery, Preble	3 hr
Jun 9, 4:57 AM EDT	Severe Thunderstorm Warning	ILN	Montgomery	48 min
Jun 9, 5:34 AM EDT	Severe Thunderstorm Warning	ILN	Clinton, Greene, Warren	41 min
Jun 9, 7:13 AM EDT	Severe Thunderstorm Warning	ILN	Licking	17 min
Jun 9, 2:44 PM EDT	Severe Thunderstorm Warning	ILN	Pike	46 min
Jun 9, 3:16 PM EDT	Severe Thunderstorm Warning	ILN	Hocking, Ross	44 min
Jun 9, 3:23 PM EDT	Severe Thunderstorm Warning	ILN	Pike	37 min
Jun 9, 3:46 PM EDT	Areal Flood Advisory	ILN	Pike	78 min
Jun 9, 3:53 PM EDT	Severe Thunderstorm Warning	ILN	Highland	52 min
Jun 9, 4:10 PM EDT	Severe Thunderstorm Warning	ILN	Hocking, Ross	50 min
Jun 9, 4:22 PM EDT	Areal Flood Advisory	ILN	Highland	23 min
Jun 9, 4:33 PM EDT	Severe Thunderstorm Warning	ILN	Adams, Brown, Highland	42 min
Jun 9, 4:43 PM EDT	Areal Flood Advisory	ILN	Ross	47 min
Jun 9, 4:43 PM EDT	Flash Flood Warning	ILN	Highland	80 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2009 Every severe thunderstorm warning in 2009

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.