Alert archive / Ohio / Severe Thunderstorm Watches in 2002

Severe Thunderstorm Watch 360

May 31, 200224 counties in Ohio

The Storm Prediction Center issued this severe thunderstorm watch at May 31, 2002, 3:30 PM EDT for 24 counties in Ohio. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
May 31, 2002, 3:30 PM EDT (19:30 UTC)
Expired
May 31, 2002, 9:00 PM EDT
In force
6 hr
Issued by
the Storm Prediction Center
All 24 counties

Ashland County, OH, Columbiana County, OH, Crawford County, OH, Cuyahoga County, OH, Erie County, OH, Geauga County, OH, Hancock County, OH, Hardin County, OH, Huron County, OH, Lorain County, OH, Mahoning County, OH, Marion County, OH, Medina County, OH, Ottawa County, OH, Portage County, OH, Richland County, OH, Sandusky County, OH, Seneca County, OH, Stark County, OH, Summit County, OH, Trumbull County, OH, Wayne County, OH, Wood County, OH, Wyandot County, OH

The radar

The Cleveland radar (KCLE), 62 km from the middle of the area, began a volume at 19:30 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.

Warnings issued inside it

8 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
May 31, 4:01 PM EDTSevere Thunderstorm WarningCLEMedina, Summit59 min
May 31, 4:48 PM EDTSevere Thunderstorm WarningCLEMahoning57 min
May 31, 4:57 PM EDTSevere Thunderstorm WarningCLEPortage, Summit63 min
May 31, 4:59 PM EDTSevere Thunderstorm WarningCLEStark61 min
May 31, 5:02 PM EDTSevere Thunderstorm WarningCLEMorrow, Richland58 min
May 31, 5:13 PM EDTTornado WarningCLEStark47 min
May 31, 5:22 PM EDTSevere Thunderstorm WarningCLEAshland38 min
May 31, 6:14 PM EDTSevere Thunderstorm WarningCLEStark31 min

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 7.5 hours before the alert went out and 222 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, Pittsburgh, PA at 12:00Z on 2002-05-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 164 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, Pittsburgh, PA at 12:00Z on 2002-05-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 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
164 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
1195 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
73 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 31, 5:00 PM EDTSevere Thunderstorm WatchSPCBelmont, Carroll, Champaign, Clark, Coshocton, Delaware and 22 more6 hr
May 31, 6:30 PM EDTSevere Thunderstorm WatchSPCAdams, Brown, Butler, Clermont, Clinton, Fayette and 10 more5 hr

Nearby

Severe Thunderstorm Watches in Ohio, 2002Every severe thunderstorm watch in 2002

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.