Alert archive / Ohio / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 314, NWS Wilmington, OH

August 25, 1998Hamilton County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Aug 25, 1998, 6:37 PM EDT for Hamilton County, Ohio. It was in force for 33 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
Aug 25, 1998, 6:37 PM EDT (22:37 UTC)
Expired
Aug 25, 1998, 7:10 PM EDT
In force
33 min
Issued by
NWS Wilmington, OH
Area
Whole counties

County Hamilton County, OH

The radar

The Cincinnati radar (KILN), 67 km from the middle of the area, began a volume at 22:40 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.

IssuedProductOfficeLasted
Aug 25, 2:30 PM EDTSevere Thunderstorm WatchSPC7 hr
Aug 25, 4:45 PM EDTTornado WatchSPC6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 10.6 hours before the alert went out and 69 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 1998-08-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 369 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 1998-08-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 141 square meters per square second.193958Sfc1 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
369 J/kg
Mixed-layer CIN
-244 J/kg
Mixed-layer LCL
1371 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
141 m²/s²
0-3 km storm-relative helicity
120 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

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 Aug 25, 3:36 PM EDT, 3 hours 1 minute earlier.

Area forecast discussion, Aug 25, 3:36 PM EDT, 3 hours 1 minute before
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In the hours before

Local storm report, Aug 25, 2:52 PM EDT, 3 hours 45 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
252 PM EDT TUE AUG 25 1998

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0225 PM    KENTON                    OH   1.75 INCH HAIL
08/25/98   HARDIN                         GOLFBALL SIZE HAIL AND
                                          FIVE LARGE TREES DOWN 5
                                          MILES E OF KENTON
Local storm report, Aug 25, 4:25 PM EDT, 2 hours 12 minutes before
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Local storm report, Aug 25, 4:25 PM EDT, 2 hours 12 minutes before
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Special weather statement, Aug 25, 4:45 PM EDT, 1 hour 52 minutes before
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Special weather statement, Aug 25, 4:45 PM EDT, 1 hour 52 minutes before
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Local storm report, Aug 25, 5:25 PM EDT, 1 hour 12 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 24, 8:23 PM EDTSevere Thunderstorm WarningILNGreene32 min
Aug 25, 2:03 PM EDTSevere Thunderstorm WarningILNHardin42 min
Aug 25, 3:24 PM EDTSevere Thunderstorm WarningILNLogan46 min
Aug 25, 3:34 PM EDTTornado WarningILNLicking66 min
Aug 25, 3:35 PM EDTSevere Thunderstorm WarningILNShelby35 min
Aug 25, 3:39 PM EDTSevere Thunderstorm WarningILNDarke46 min
Aug 25, 3:39 PM EDTSevere Thunderstorm WarningILNDelaware61 min
Aug 25, 3:47 PM EDTSevere Thunderstorm WarningILNChampaign63 min
Aug 25, 3:54 PM EDTSevere Thunderstorm WarningILNMiami46 min
Aug 25, 4:08 PM EDTSevere Thunderstorm WarningILNUnion47 min
Aug 25, 4:17 PM EDTSevere Thunderstorm WarningILNFranklin63 min
Aug 25, 4:19 PM EDTSevere Thunderstorm WarningILNMadison66 min
Aug 25, 4:26 PM EDTSevere Thunderstorm WarningILNLicking59 min
Aug 25, 4:31 PM EDTSevere Thunderstorm WarningILNClark64 min
Aug 25, 5:13 PM EDTSevere Thunderstorm WarningILNPickaway62 min
Aug 25, 5:18 PM EDTSevere Thunderstorm WarningILNFayette62 min
Aug 25, 5:44 PM EDTSevere Thunderstorm WarningILNFairfield61 min
Aug 25, 5:49 PM EDTSevere Thunderstorm WarningILNMontgomery61 min
Aug 25, 6:00 PM EDTSevere Thunderstorm WarningILNHocking65 min
Aug 25, 6:19 PM EDTSevere Thunderstorm WarningILNRoss76 min
Aug 25, 7:16 PM EDTSevere Thunderstorm WarningILNClermont29 min
Aug 25, 7:19 PM EDTSevere Thunderstorm WarningILNPike51 min
Aug 25, 7:25 PM EDTSevere Thunderstorm WarningILNBrown30 min
Aug 25, 7:28 PM EDTSevere Thunderstorm WarningILNOhio32 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.