Alert archive / Ohio / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 127, NWS Wilmington, OH

July 19, 2007Darke County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Jul 19, 2007, 3:06 AM EDT for Darke County, Ohio. It was in force for 39 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 19, 2007, 3:06 AM EDT (07:06 UTC)
Expired: Jul 19, 2007, 3:45 AM EDT
In force: 39 min
Issued by: NWS Wilmington, OH
Area: Counties, with a storm outline in the text

County Darke County, OH

The radar

The Cincinnati radar (KILN), 105 km from the middle of the area, began a volume at 07:06 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 18, 10:59 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 7.1 hours before the alert went out and 105 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: 691 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 1319 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 120 m²/s²
0-3 km storm-relative helicity: 188 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 4.7

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 19, 1:58 AM EDT, 1 hour 8 minutes earlier.

Area forecast discussion, Jul 19, 1:58 AM EDT, 1 hour 8 minutes before

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Hazardous weather outlook, Jul 18, 5:02 AM EDT, 22 hours 4 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WILMINGTON OH
502 AM EDT WED JUL 18 2007

INZ050-058-059-066-073>075-080-KYZ089>100-OHZ026-034-035-042>046-
051>056-060>065-070>074-077>082-088-190915-
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-
502 AM EDT WED JUL 18 2007

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

SCATTERED STRONG THUNDERSTORMS ARE POSSIBLE TODAY AND TONIGHT. GUSTY
WINDS AND HEAVY RAIN CAN BE EXPECTED WITH STORMS. AN ISOLATED
THREAT FOR SEVERE STORMS EXISTS AS WELL...WITH THE POSSIBILITY OF
DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

A COLD FRONT WILL MOVE ACROSS THE REGION THURSDAY AFTERNOON AND
NIGHT...BRINGING THE CHANCE FOR NUMEROUS SEVERE THUNDERSTORMS. THE
MAIN THREAT FROM THESE STORMS WILL BE DAMAGING WINDS AND LARGE
HAIL. LOCALLY HEAVY RAINFALL WILL ALSO BE POSSIBLE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED LATER TODAY AND AGAIN ON THURSDAY.

RYAN

In the hours before

Local storm report, Jul 18, 10:31 PM EDT, 4 hours 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OH
1031 PM EDT WED JUL 18 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0900 PM     TSTM WND DMG     6 S BROOKSVILLE         38.60N 84.07W
07/18/2007                   BRACKEN            KY   TRAINED SPOTTER

            TREES DOWN

&&

JC

Local storm report, Jul 19, 12:29 AM EDT, 2 hours 37 minutes before

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Local storm report, Jul 19, 1:04 AM EDT, 2 hours 2 minutes before

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Special weather statement, Jul 19, 1:39 AM EDT, 1 hour 27 minutes before

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Special weather statement, Jul 19, 2:36 AM EDT, 30 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 18, 11:55 PM EDT	Severe Thunderstorm Warning	ILN	Clinton, Warren	50 min
Jul 19, 12:48 AM EDT	Severe Thunderstorm Warning	ILN	Greene, Montgomery, Warren	42 min
Jul 19, 1:02 AM EDT	Areal Flood Advisory	ILN	Montgomery, Warren	88 min
Jul 19, 2:54 AM EDT	Areal Flood Advisory	ILN	Logan, Shelby	2 hr
Jul 19, 2:54 AM EDT	Areal Flood Advisory	ILN	Logan, Shelby	2 hr
Jul 19, 3:53 AM EDT	Severe Thunderstorm Warning	ILN	Fairfield	37 min
Jul 19, 1:06 PM EDT	Severe Thunderstorm Warning	ILN	Hamilton	54 min
Jul 19, 1:34 PM EDT	Severe Thunderstorm Warning	ILN	Adams, Scioto	56 min
Jul 19, 1:39 PM EDT	Severe Thunderstorm Warning	ILN	Highland	36 min
Jul 19, 1:50 PM EDT	Severe Thunderstorm Warning	ILN	Highland	55 min
Jul 19, 3:20 PM EDT	Severe Thunderstorm Warning	ILN	Adams	40 min
Jul 18, 8:43 PM EDT	Severe Thunderstorm Warning	ILN	Bracken, Mason, Robertson	47 min
Jul 19, 12:19 AM EDT	Areal Flood Advisory	ILN	Lewis, Mason	86 min
Jul 19, 3:05 PM EDT	Severe Thunderstorm Warning	ILN	Gallatin	40 min
Jul 19, 1:31 PM EDT	Severe Thunderstorm Warning	ILN	Franklin	44 min
Jul 19, 2:41 PM EDT	Severe Thunderstorm Warning	ILN	Ripley	34 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2007 Every severe thunderstorm warning in 2007

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.