Alert archive / Ohio / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 39, NWS Cleveland, OH

May 18, 1997Hancock County, Wood County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at May 18, 1997, 11:55 PM EDT for Hancock County, Wood County, Ohio. It was in force for 50 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
May 18, 1997, 11:55 PM EDT (03:55 UTC)
Expired
May 19, 1997, 12:45 AM EDT
In force
50 min
Issued by
NWS Cleveland, OH
Area
Whole counties

Counties Hancock County, OH, Wood County, OH

The radar

The Cleveland radar (KCLE), 151 km from the middle of the area, began a volume at 03:58 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
May 19, 12:20 AM EDTThunderstorm WindCountywide, 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 18, 11:00 PM EDTTornado WatchSPC6 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 3.9 hours before the alert went out and 172 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 00:00Z on 1997-05-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 17 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 00:00Z on 1997-05-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 296 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
17 J/kg
Mixed-layer CIN
-791 J/kg
Mixed-layer LCL
754 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
296 m²/s²
0-3 km storm-relative helicity
450 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.

349 
WUUS1 KCLE 190357 RRA
SVRCLE
OHC063-173-190445-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
1155 PM EDT SUN MAY 18 1997
 
THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1245 AM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN  OHIO
 
   ...HANCOCK COUNTY...WOOD COUNTY
 
AT 1155 PM EDT DOPPLER RADAR SHOWED A SEVERE THUNDERSTORM IN HENRY
COUNTY SOUTHEAST OF NAPOLEON. THE THUNDERSTORM WAS MOVING SOUTHEAST AT
45 MPH. THUNDERSTORM HEADED FOR HANCOCK AND MAINLY SOUTHWEST WOOD
COUNTY.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.

The office that day

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

IssuedProductOfficeCountiesLasted
May 18, 10:41 PM EDTSevere Thunderstorm WarningCLEPortage, Trumbull64 min
May 18, 11:02 PM EDTSevere Thunderstorm WarningCLEGeauga43 min
May 18, 11:24 PM EDTSevere Thunderstorm WarningCLEFulton, Henry51 min
May 18, 11:37 PM EDTSevere Thunderstorm WarningCLEAshtabula53 min
May 19, 12:12 AM EDTSevere Thunderstorm WarningCLESeneca, Wyandot63 min
May 19, 12:12 AM EDTSevere Thunderstorm WarningCLEOttawa, Sandusky63 min
May 19, 12:28 AM EDTSevere Thunderstorm WarningCLEErie, Huron62 min
May 19, 12:37 AM EDTSevere Thunderstorm WarningCLECrawford, Marion68 min
May 19, 12:50 AM EDTFlash Flood WarningCLEAshtabula115 min
May 19, 12:55 AM EDTSevere Thunderstorm WarningCLELorain65 min

Nearby

Severe Thunderstorm Warnings in Ohio, 1997Every severe thunderstorm warning in 1997

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.