Alert archive / Ohio / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 23, NWS Cleveland, OH

June 12, 1999Seneca County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Jun 12, 1999, 2:54 PM EDT for Seneca County, Ohio. It was in force for 61 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 12, 1999, 2:54 PM EDT (18:54 UTC)
Expired
Jun 12, 1999, 3:55 PM EDT
In force
61 min
Issued by
NWS Cleveland, OH
Area
Whole counties

County Seneca County, OH

What was reported inside it

TimeReportWhereRemark
Jun 12, 3:18 PM EDTHail 1Attica, OH

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

Detroit, MI (KDTX), launched 12:00Z, 6.9 hours before the alert went out and 179 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, Detroit, MI at 12:00Z on 1999-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 328 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, Detroit, MI at 12:00Z on 1999-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 square meters per square second.1939Sfc1 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
328 J/kg
Mixed-layer CIN
-130 J/kg
Mixed-layer LCL
1376 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
34 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

516 
WUUS1 KCLE 121858 RRA
SVRCLE
OHC147-121955-

BULLETIN - EAS ACTIVATION/IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
254 PM EDT SAT JUN 12 1999

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SENECA COUNTY IN NORTHWESTERN OHIO

* UNTIL 355 PM EDT

* AT 252 PM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 14 MILES EAST OF TIFFIN OR 3 MILES NORTH OF
  ATTICA... MOVING SOUTHEAST AT 10 MPH.

THE SEVERE THUNDERSTORM WILL MOVE NEAR...


SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS AND LARGE HAIL. GO INSIDE
A STURDY BUILDING AND STAY AWAY FROM WINDOWS.
$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 2:29 PM EDTSevere Thunderstorm WarningCLEErie61 min
Jun 12, 2:51 PM EDTSevere Thunderstorm WarningCLECrawford64 min
Jun 12, 2:58 PM EDTSevere Thunderstorm WarningCLESandusky62 min
Jun 12, 3:06 PM EDTFlash Flood WarningCLECrawford2 hr
Jun 12, 3:06 PM EDTFlash Flood WarningCLEErie2 hr
Jun 12, 3:11 PM EDTSevere Thunderstorm WarningCLEHuron64 min
Jun 12, 3:25 PM EDTSevere Thunderstorm WarningCLEOttawa65 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.