Alert archive / Ohio / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 252, NWS Cleveland, OH

August 4, 1994Trumbull County, Ohio; Crawford County, Pennsylvania

NWS Cleveland, OH issued this severe thunderstorm warning at Aug 4, 1994, 2:31 PM EDT for Trumbull County, Ohio; Crawford County, Pennsylvania. It was in force for 59 min.

The area

The counties it named.

The facts

Issued
Aug 4, 1994, 2:31 PM EDT (18:31 UTC)
Expired
Aug 4, 1994, 3:30 PM EDT
In force
59 min
Issued by
NWS Cleveland, OH
Area
Whole counties

Counties Trumbull County, OH, Crawford County, PA

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 6.5 hours before the alert went out and 125 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 1994-08-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 104 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 1994-08-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 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
104 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
934 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
90 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.

000 
TTAA00 KCLE 041838 RRA
SVRCLE
OHC155-PAC039-041930-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
231 PM EDT THU AUG 4 1994
 
THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  330 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN  OHIO
 
   ...TRUMBULL COUNTY
 
IN  PENNSYLVANIA
 
   ...CRWAFORD COUNTY
 
AT 230 PM NATIONAL WEATHER SERVICE DOPPLER RADAR IN CLEVELAND INDICATED
A LINE SEVERE THUNDERSTORMS MOVING INTO TRUMBULL COUNTY OHIO AND
CRAWFORD COUNTY PENNSYLVANIA. THE LINE WAS MOVING TO THE EAST AT 40 MPH
AND WILL SPREAD ACROSS THE COUNTIES BY 330 PM.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDL IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE
WATER COVERS THE ROAD.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 4, 12:32 PM EDTSevere Thunderstorm WarningCLEAshtabula58 min
Aug 4, 1:07 PM EDTSevere Thunderstorm WarningCLEHuron, Lorain68 min
Aug 4, 1:14 PM EDTSevere Thunderstorm WarningCLECuyahoga61 min
Aug 4, 1:20 PM EDTSevere Thunderstorm WarningCLEAshland, Medina55 min
Aug 4, 1:24 PM EDTSevere Thunderstorm WarningCLELake66 min
Aug 4, 1:49 PM EDTSevere Thunderstorm WarningCLEAshtabula, Geauga, Portage, Summit56 min
Aug 4, 2:20 PM EDTSevere Thunderstorm WarningCLEWayne55 min
Aug 4, 6:12 PM EDTSevere Thunderstorm WarningCLEGuernsey, Noble63 min
Aug 4, 6:26 PM EDTSevere Thunderstorm WarningCLEBelmont, Harrison64 min
Aug 4, 6:50 PM EDTSevere Thunderstorm WarningCLEJefferson55 min
Aug 4, 2:06 PM EDTSevere Thunderstorm WarningCLEErie69 min

Nearby

Severe Thunderstorm Warnings in Ohio, 1994Severe Thunderstorm Warnings in Pennsylvania, 1994Every severe thunderstorm warning in 1994

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.