Alert archive / Ohio / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 243, NWS Wilmington, OH

June 29, 1998Darke County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Jun 29, 1998, 9:42 PM EDT for Darke County, Ohio. It was in force for 43 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 29, 1998, 9:42 PM EDT (01:42 UTC)
Expired
Jun 29, 1998, 10:25 PM EDT
In force
43 min
Issued by
NWS Wilmington, OH
Area
Whole counties

County Darke County, OH

The radar

The Cincinnati radar (KILN), 105 km from the middle of the area, began a volume at 01:42 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

TimeReportWhereRemark
Jun 29, 10:05 PM EDTThunderstorm Wind 50Greenville, OHTrees 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, 1.7 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-pSkew-T log-p diagram, Cncnati-Daytn, OH at 00:00Z on 1998-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 397 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 00:00Z on 1998-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 146 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
397 J/kg
Mixed-layer CIN
-57 J/kg
Mixed-layer LCL
1435 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
146 m²/s²
0-3 km storm-relative helicity
201 m²/s²
Significant tornado parameter
0.1
Supercell composite
4.0

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 29, 9:00 PM EDT, 42 minutes earlier.

Area forecast discussion, Jun 29, 9:00 PM EDT, 42 minutes before
FORECAST COORDINATION MESSAGE
NATIONAL WEATHER SERVICE WILMINGTON OH
900 PM EDT MON JUN 29 1998

COMPLEX IN CENTRAL INDINANA CONTINUES TO DROP TO THE SOUTHEAST.
CURRENT TRACK WILL BRING THE STRONGEST STORMS INTO SOUTHWEST SECTION
OF CWA...BUT REST OF CWA WILL BE AFFECTED BY THE THE SYSTEM. WOULD
UP POPS TO CATEGORICAL...AT LEAST TO IN SW OH...SE IN AND NRN KY DUE
TO EXTENSIVE PRECIP SHEILD.  FLASH FLOOD WATCHES LOOKING GOOD.

WITH DEWPOINTS IN THE LOWER 70S LOWER MIGHT HOLD IN THE 70 TO 75
RANGE ACROSS THE SOUTH.

SITES

In the hours before

Special weather statement, Jun 29, 7:32 PM EDT, 2 hours 10 minutes before
INZ050-058-059-066-073>075-080-KYZ089-090-094-300525-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
737 PM EDT (632 PM EST) MON JUN 29 1998

...TORNADO WATCH FOR SOUTHEAST INDIANA (INCLUDING THE WHITEWATER
   VALLEY) AND NORTHWEST KENTUCKY UNTIL 1 AM EDT...

A TORNADO WATCH HAS BEEN ISSUED FOR SOUTHEAST INDIANA (INCLUDING
THE WHITEWATER VALLEY) AND NORTHWEST KENTUCKY THROUGH 1 AM EDT
(MIDNIGHT EST). A LARGE AREA OF THUNDERSTORMS THAT HAVE ALREADY
PRODUCED SEVERE WEATHER WILL BE DIVING SOUTHEAST THROUGH INDIANA AND
NORTHWESTERN KENTUCKY THIS EVENING.  LARGE HAIL... DAMAGING WINDS
AND EVEN SOME TORNADOES COULD OCCUR WITH THUNDERSTORMS IN INDIANA
AND NORTHWESTERN KENTUCKY THIS EVENING.

SOME CITIES INCLUDED IN THE WATCH ARE RICHMOND...BROOKVILLE...
LAWRENCEBURG...CARROLLTON AND OWENTON.

STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST INFORMATION
CONCERNING THUNDERSTORMS THIS EVENING.

FARINA

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 9:10 PM EDTSevere Thunderstorm WarningILNMiami20 min
Jun 29, 9:23 PM EDTSevere Thunderstorm WarningILNMontgomery32 min
Jun 29, 9:44 PM EDTFlash Flood WarningILNFranklin, Madison, Pickaway3 hr
Jun 29, 10:24 PM EDTSevere Thunderstorm WarningILNHamilton46 min
Jun 29, 11:04 PM EDTSevere Thunderstorm WarningILNClermont61 min
Jun 29, 11:13 PM EDTFlash Flood WarningILNMiami117 min
Jun 29, 11:18 PM EDTSevere Thunderstorm WarningILNClark47 min
Jun 29, 11:29 PM EDTFlash Flood WarningILNFranklin, Madison, Pickaway3 hr
Jun 29, 11:29 PM EDTFlash Flood WarningILNLicking3 hr
Jun 29, 11:32 PM EDTSevere Thunderstorm WarningILNBrown58 min
Jun 29, 10:11 PM EDTSevere Thunderstorm WarningILNCarroll, Gallatin44 min
Jun 29, 10:24 PM EDTSevere Thunderstorm WarningILNBoone46 min
Jun 29, 10:27 PM EDTSevere Thunderstorm WarningILNGrant, Pendleton53 min
Jun 29, 10:27 PM EDTSevere Thunderstorm WarningILNOwen53 min
Jun 29, 11:15 PM EDTSevere Thunderstorm WarningILNBracken, Robertson65 min
Jun 29, 9:20 PM EDTSevere Thunderstorm WarningILNFayette, Union, Wayne45 min
Jun 29, 10:03 PM EDTSevere Thunderstorm WarningILNDearborn, Franklin, Ripley52 min
Jun 29, 10:11 PM EDTSevere Thunderstorm WarningILNOhio, Switzerland44 min

Nearby

Severe Thunderstorm Warnings in Ohio, 1998Every severe thunderstorm warning in 1998

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.