Alert archive / Ohio / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 81, NWS Wilmington, OH

June 21, 1997Hardin County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Jun 21, 1997, 9:26 PM EDT for Hardin County, Ohio. It was in force for 34 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jun 21, 1997, 9:26 PM EDT (01:26 UTC)
Expired: Jun 21, 1997, 10:00 PM EDT
In force: 34 min
Issued by: NWS Wilmington, OH
Area: Whole counties

County Hardin County, OH

The radar

The Cincinnati radar (KILN), 139 km from the middle of the area, began a volume at 01:29 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.

What was reported inside it

Time	Report	Where	Remark
Jun 21, 9:45 PM EDT	Thunderstorm Wind 50	Ada, OH	Several large tree limbs downed.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 1.4 hours before the alert went out and 138 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: 1325 J/kg
Mixed-layer CIN: -48 J/kg
Mixed-layer LCL: 1233 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 29 m²/s²
0-3 km storm-relative helicity: 152 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 21, 9:20 PM EDT, 6 minutes earlier.

Area forecast discussion, Jun 21, 9:20 PM EDT, 6 minutes before

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In the hours before

Special weather statement, Jun 21, 5:03 PM EDT, 4 hours 23 minutes before

INZ050-058-059-066-073>075-080-OHZ015-016-024>026-034-035-
042>046-051>056-060>065-070>073-077-078-KYZ091>093-220400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
500 PM EDT (400 PM EST) SAT JUN 21 1997

...SEVERE THUNDERSTORMS POSSIBLE THIS EVENING...

VERY WARM AND UNSTABLE AIR ACROSS THE UPPER OHIO VALLEY WILL COMBINE
WITH ABUNDANT MOISTURE AND INCREASE THE POTENTIAL FOR SEVERE
THUNDERSTORM ACTIVITY INTO THIS EVENING ACROSS MUCH OF OHIO AND FAR
NORTHERN KENTUCKY THROUGH TONIGHT.

THE GREATEST POTENTIAL FOR SEVERE THUNDERSTORMS EXISTS ACROSS EASTERN
INDIANA AND WESTERN OHIO...AND AS FAR WEST AND SOUTH AS CENTRAL OHIO
AND EXTREME NORTHERN KENTUCKY.

CITIES INCLUDED IN THE SEVERE THUNDERSTORM OUTLOOK AREA INCLUDE...
VAN WERT...LIMA...DAYTON...SPRINGFIELD...COLUMBUS AND CINCINNATI IN
OHIO...AS WELL AS RICHMOND AND BROOKVILLE INDIANA AND COVINGTON
KENTUCKY.

THE MAIN THREAT FROM THUNDERSTORMS THIS EVENING WILL BE DAMAGING WINDS.
AS THE THUNDERSTORMS WILL BE SLOW MOVING...THE POTENTIAL IS ALSO HIGH
FOR HEAVY RAIN AND FLOODING.

IF YOU ARE PLANNING OUTDOOR ACTIVITIES INTO THIS EVENING...LISTEN TO
NOAA WEATHER RADIO FOR THE LATEST INFORMATION ON WEATHER CONDITIONS
ACROSS THE REGION. SKYWARN AMATEUR RADIO OPERATORS MAY NEED TO BE
ACTIVATED LATER THIS EVENING.

DIAN

Special weather statement, Jun 21, 6:12 PM EDT, 3 hours 14 minutes before

INZ050-058-059-OHZ015-016-024>026-034-035-042>044-051-060-061-
220315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
613 PM EDT (513 PM EST) SAT JUN 21 1997

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 11 PM EDT (10 PM
EST) FOR WEST CENTRAL OHIO AND EAST CENTRAL INDIANA...

VERY WARM AND MOIST AIR OVER THE UPPER OHIO VALLEY COMBINED WITH
ABUNDANT LOW LEVEL MOISTURE TO INCREASE THE THREAT FOR SEVERE
THUNDERSTORMS THROUGH 11 PM EDT (10 PM EST) FOR WEST CENTRAL OHIO
AND EAST CENTRAL INDIANA.

CITIES INCLUDED IN THE WATCH INCLUDE...RICHMOND INDIANA...VAN
WERT...LIMA...ST MARYS...KENTON...AND DAYTON OHIO.

A LINE OF THUNDESTORMS WILL PUSH FROM WEST TO EAST THROUGH
EASTERN INDIANA AND WESTERN OHIO THROUGH THE EVENING HOURS. THESE
THUNDERSTORMS HAVE THE POTENTIAL TO PRODUCE SEVERE THUNDERSTORM
WINDS IN EXCESS OF 55 MPH AND TORRENTIAL RAIN.

STAY TUNED TO NOAA WEATHER RADIO OR THE COMMERCIAL MEDIA FOR
POSSIBLE WARNINGS OR ADDITIONAL STATEMENTS.

IT IS DANGEROUS TO BE OUTDOORS WHILE A SEVERE THUNDERSTORM IS IN
PROGRESS. DAMAGING WINDS...LARGE HAIL...VERY HEAVY RAIN...AND
DEADLY LIGHTNING ARE ALL POSSIBLE. SEEK SHELTER IN A BUILDING OR A
VEHICLE. IF YOU ARE CAUGHT IN THE OPEN...STAY AWAY FROM TOWERS AND
LARGE TREES. CROUCH NEAR THE GROUND AND COVER YOUR HEAD.

DIAN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 21, 8:48 PM EDT	Severe Thunderstorm Warning	ILN	Auglaize	62 min
Jun 21, 9:18 PM EDT	Severe Thunderstorm Warning	ILN	Allen	27 min

Nearby

Severe Thunderstorm Warnings in Ohio, 1997 Every severe thunderstorm warning in 1997

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.