Alert archive / Ohio / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 183, NWS Wilmington, OH

August 24, 1999Brown County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Aug 24, 1999, 4:14 PM EDT for Brown County, Ohio. It was in force for 46 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
Aug 24, 1999, 4:14 PM EDT (20:14 UTC)
Expired
Aug 24, 1999, 5:00 PM EDT
In force
46 min
Issued by
NWS Wilmington, OH
Area
Whole counties

County Brown County, OH

What was reported inside it

TimeReportWhereRemark
Aug 24, 4:30 PM EDTThunderstorm Wind 50Sardinia, OHNumerous large limbs and a tree were knocked down. The tree fell on a house causing damage.

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

Nashville Metro, TN (KBNA), launched 12:00Z, 8.2 hours before the alert went out and 394 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, Nashville Metro, TN at 12:00Z on 1999-08-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 975 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, Nashville Metro, TN at 12:00Z on 1999-08-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 184 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
975 J/kg
Mixed-layer CIN
-56 J/kg
Mixed-layer LCL
742 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
184 m²/s²
0-3 km storm-relative helicity
175 m²/s²
Significant tornado parameter
0.6
Supercell composite
4.7

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.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 24, 2:16 PM EDTSevere Thunderstorm WarningILNHamilton29 min
Aug 24, 2:45 PM EDTSevere Thunderstorm WarningILNHamilton30 min
Aug 24, 3:14 PM EDTSevere Thunderstorm WarningILNClermont61 min
Aug 24, 3:38 PM EDTSevere Thunderstorm WarningILNClinton47 min
Aug 24, 5:23 PM EDTSevere Thunderstorm WarningILNAdams42 min
Aug 24, 5:51 PM EDTSevere Thunderstorm WarningILNRoss49 min
Aug 24, 6:14 PM EDTSevere Thunderstorm WarningILNScioto61 min
Aug 24, 7:17 PM EDTFlash Flood WarningILNScioto3 hr
Aug 24, 5:45 PM EDTSevere Thunderstorm WarningILNLewis45 min

Nearby

Severe Thunderstorm Warnings in Ohio, 1999Every severe thunderstorm warning in 1999

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.