Alert archive / Ohio / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 239, NWS Wilmington, OH

June 29, 1998Madison County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Jun 29, 1998, 3:17 PM EDT for Madison County, Ohio. It was in force for 43 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 29, 1998, 3:17 PM EDT (19:17 UTC)
Expired
Jun 29, 1998, 4:00 PM EDT
In force
43 min
Issued by
NWS Wilmington, OH
Area
Whole counties

County Madison County, OH

The radar

The Cincinnati radar (KILN), 64 km from the middle of the area, began a volume at 19:17 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 12:00Z, 7.3 hours before the alert went out and 62 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 12:00Z on 1998-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 749 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 12:00Z on 1998-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 118 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
749 J/kg
Mixed-layer CIN
-115 J/kg
Mixed-layer LCL
961 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
118 m²/s²
0-3 km storm-relative helicity
173 m²/s²
Significant tornado parameter
0.1
Supercell composite
4.5

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, 3:10 PM EDT, 7 minutes earlier.

Area forecast discussion, Jun 29, 3:10 PM EDT, 7 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 28, 8:02 PM EDTSevere Thunderstorm WarningILNLicking53 min
Jun 28, 9:41 PM EDTFlash Flood WarningILNLicking3 hr
Jun 28, 10:16 PM EDTSevere Thunderstorm WarningILNChampaign59 min
Jun 28, 10:46 PM EDTSevere Thunderstorm WarningILNMadison49 min
Jun 28, 11:06 PM EDTSevere Thunderstorm WarningILNFranklin, Pickaway64 min
Jun 28, 11:45 PM EDTFlash Flood WarningILNFranklin, Madison, Pickaway2 hr
Jun 29, 12:14 AM EDTSevere Thunderstorm WarningILNHocking61 min
Jun 29, 12:25 AM EDTFlash Flood WarningILNHocking3 hr
Jun 29, 1:22 AM EDTSevere Thunderstorm WarningILNMercer48 min
Jun 29, 1:28 AM EDTSevere Thunderstorm WarningILNFranklin47 min
Jun 29, 1:37 AM EDTSevere Thunderstorm WarningILNAuglaize48 min
Jun 29, 1:49 AM EDTSevere Thunderstorm WarningILNPickaway41 min
Jun 29, 2:16 AM EDTFlash Flood WarningILNFranklin, Madison, Pickaway3 hr
Jun 29, 2:27 AM EDTSevere Thunderstorm WarningILNPickaway63 min
Jun 29, 2:56 AM EDTFlash Flood WarningILNMercer114 min
Jun 29, 3:00 AM EDTSevere Thunderstorm WarningILNFranklin60 min
Jun 29, 3:19 AM EDTFlash Flood WarningILNFranklin, Madison, Pickaway, Union4 hr
Jun 29, 3:29 AM EDTSevere Thunderstorm WarningILNPickaway61 min
Jun 29, 2:03 PM EDTSevere Thunderstorm WarningILNOwen62 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.