Alert archive / Ohio / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 23, NWS Wilmington, OH

April 11, 2007Hocking County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Apr 11, 2007, 10:31 PM EDT for Hocking County, Ohio. It was in force for 29 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: Apr 11, 2007, 10:31 PM EDT (02:31 UTC)
Expired: Apr 11, 2007, 11:00 PM EDT
In force: 29 min
Issued by: NWS Wilmington, OH
Area: Counties, with a storm outline in the text

County Hocking County, OH

The radar

The Cincinnati radar (KILN), 116 km from the middle of the area, began a volume at 02:33 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
Apr 11, 7:16 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 2.5 hours before the alert went out and 114 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: 305 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 634 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 241 m²/s²
0-3 km storm-relative helicity: 252 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 1.8

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 Apr 11, 10:21 PM EDT, 10 minutes earlier.

Area forecast discussion, Apr 11, 10:21 PM EDT, 10 minutes before

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Hazardous weather outlook, Apr 11, 5:52 PM EDT, 4 hours 39 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WILMINGTON OH
552 PM EDT WED APR 11 2007

INZ050-058-059-066-073>075-080-KYZ089>091-094-095-122200-
WAYNE-FAYETTE IN-UNION IN-FRANKLIN IN-RIPLEY-DEARBORN-OHIO-
SWITZERLAND-CARROLL-GALLATIN-BOONE-OWEN-GRANT-
552 PM EDT WED APR 11 2007

...SEVERE THUNDERSTORM WATCH 126 IN EFFECT UNTIL 11 PM EDT THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL
INDIANA...SOUTHEAST INDIANA AND NORTHERN KENTUCKY.

.DAY ONE...TONIGHT

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   SEVERE THUNDERSTORM WATCH

THUNDERSTORMS WILL OCCUR THIS EVENING IN A MOIST UNSTABLE AIRMASS
ASSOCIATED WITH STRONG LOW PRESSURE. SOME OF THE THUNDERSTORMS MAY
REACH SEVERE LIMITS...WITH DAMAGING WINDS AND LARGE HAIL THE MAIN
THREATS. ISOLATED TORNADOES ALSO WILL BE POSSIBLE.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED.

KYZ092-093-096>100-OHZ026-034-035-042>046-051>056-060>065-070>074-
077>082-088-122200-
KENTON-CAMPBELL-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-
552 PM EDT WED APR 11 2007

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

.DAY ONE...TONIGHT

THUNDERSTORMS WILL OCCUR THIS EVENING IN A MOIST UNSTABLE AIRMASS
ASSOCIATED WITH STRONG LOW PRESSURE. SOME OF THE THUNDERSTORMS MAY
REACH SEVERE LIMITS...WITH DAMAGING WINDS AND LARGE HAIL THE MAIN
THREATS. ISOLATED TORNADOES ALSO WILL BE POSSIBLE.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED.

In the hours before

Local storm report, Apr 11, 9:29 PM EDT, 1 hour 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OH
929 PM EDT WED APR 11 2007

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

0929 PM     HAIL             COLUMBUS                39.99N 82.99W
04/11/2007  E1.75 INCH       FRANKLIN           OH   TRAINED SPOTTER

            GERMAN VILLAGE

&&

JF

Local storm report, Apr 11, 9:32 PM EDT, 59 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OH
932 PM EDT WED APR 11 2007

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

0931 PM     HAIL             5 N OBETZ               39.95N 82.94W
04/11/2007  E0.75 INCH       FRANKLIN           OH   TRAINED SPOTTER

&&

JF

Local storm report, Apr 11, 9:36 PM EDT, 55 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OH
936 PM EDT WED APR 11 2007

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

0931 PM     TSTM WND GST     COLUMBUS                39.99N 82.99W
04/11/2007  M58 MPH          FRANKLIN           OH   AWOS

            50 KT WIND AT OSU

&&

JF

Local storm report, Apr 11, 9:51 PM EDT, 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OH
951 PM EDT WED APR 11 2007

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

0940 PM     HAIL             POWELL                  40.16N 83.07W
04/11/2007  E0.75 INCH       DELAWARE           OH   TRAINED SPOTTER

            ALONG DELAWARE/FRANKLIN COUNTY LINE

&&

JF

Local storm report, Apr 11, 9:59 PM EDT, 32 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OH
959 PM EDT WED APR 11 2007

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

0948 PM     HAIL             BAINBRIDGE              39.23N 83.21W
04/11/2007  E1.75 INCH       ROSS               OH   AMATEUR RADIO

&&

JF

Local storm report, Apr 11, 10:10 PM EDT, 21 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
Apr 11, 8:01 PM EDT	Severe Thunderstorm Warning	ILN	Darke, Preble	44 min
Apr 11, 8:05 PM EDT	Severe Thunderstorm Warning	ILN	Clark, Greene, Montgomery	25 min
Apr 11, 8:30 PM EDT	Severe Thunderstorm Warning	ILN	Darke, Miami, Shelby	21 min
Apr 11, 8:30 PM EDT	Severe Thunderstorm Warning	ILN	Clinton, Fayette, Greene, Highland, Madison, Ross	45 min
Apr 11, 8:35 PM EDT	Severe Thunderstorm Warning	ILN	Clermont	40 min
Apr 11, 8:39 PM EDT	Severe Thunderstorm Warning	ILN	Clark, Greene	51 min
Apr 11, 8:48 PM EDT	Severe Thunderstorm Warning	ILN	Champaign, Logan, Miami, Shelby	42 min
Apr 11, 9:07 PM EDT	Tornado Warning	ILN	Brown	23 min
Apr 11, 9:26 PM EDT	Severe Thunderstorm Warning	ILN	Franklin	33 min
Apr 11, 9:30 PM EDT	Severe Thunderstorm Warning	ILN	Highland	18 min
Apr 11, 9:35 PM EDT	Severe Thunderstorm Warning	ILN	Delaware	24 min
Apr 11, 9:42 PM EDT	Severe Thunderstorm Warning	ILN	Licking	33 min
Apr 11, 9:58 PM EDT	Severe Thunderstorm Warning	ILN	Pike, Ross	32 min
Apr 11, 10:09 PM EDT	Severe Thunderstorm Warning	ILN	Fairfield, Pickaway	36 min
Apr 11, 10:37 PM EDT	Severe Thunderstorm Warning	ILN	Fairfield	23 min
Apr 12, 3:57 PM EDT	Freeze Warning	ILN	Adams, Auglaize, Brown, Butler, Champaign, Clark and 26 more	12 hr

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.