Alert archive / Ohio / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 121, NWS Cleveland, OH

June 20, 1994Huron County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Jun 20, 1994, 4:55 PM EDT for Huron County, Ohio. It was in force for 65 min.

The area

The counties it named.

The facts

Issued
Jun 20, 1994, 4:55 PM EDT (20:55 UTC)
Expired
Jun 20, 1994, 6:00 PM EDT
In force
65 min
Issued by
NWS Cleveland, OH
Area
Whole counties

County Huron County, OH

The nearest sounding before it

Detroit, MI (KFNT), launched 12:00Z, 8.9 hours before the alert went out and 188 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 1994-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1994-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 119 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1438 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
119 m²/s²
0-3 km storm-relative helicity
123 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
WUUS1 KCLE 202055 RRA
SVRCLE
OHC077-202200-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
455 PM EDT MON JUN 20 1994
 
THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  600 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTH CENTRAL OHIO
 
   ...HURON COUNTY
 
AT 452 PM WEATHER SERVICE DOPPLER RADAR IN CLEVELAND INDICATED A SEVERE
THUNDERSTORM BETWEEN NORTH FAIRFIELD AND BELLEVUE. THE STORM WAS MOVING
TO THE EAST AT 30 MPH AND WILL AFFECT THE TOWNS OF NORWALK BY 5:15PM AND
WAKEMAN BY 5:30 PM THIS EVENING.
 
IF THREATENING WEATHER APPROACHES GET TO A REINFORCED SHELTER AND
PREPARE FOR STRONG... DAMAGING WINDS... LARGE HAIL... VERY HEAVY
RAIN AND LIGHTNING. REMEMBER SEVERE THUNDERSTORMS CAN AND
OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE OR NO ADVANCE
WARNING.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jun 20, 3:27 PM EDT, 1 hour 28 minutes before
OHZ007>014-018>020-202030-

SPECIAL WEATHER STATEMENT...CORRECTION
NATIONAL WEATHER SERVICE CLEVELAND OH
326 PM EDT MON JUN 20 1994

THUNDERSTORMS WERE DEVELOPING OVER NORTHERN OHIO THIS AFTERNOON.

AT 315 WEATHER RADAR INDICATED THE STRONGEST STORMS WERE WEST OF
SANSUSKY... SOUTH OF MEDINA AND EAST OF FINDLAY. THE STORMS WERE MOVING
EAST AT 25 MPH. SOME OF THE THUNDERSTORMS CAN BE SEVERE WITH LARGE HAIL
AND DAMAGAING WINDS. THEY ALSO CAN PUT DOWN LOCALLY HEAVY RAINS WHICH
CAN CAUSE FLOODING OF STREETS AND SMALL STREAMS.

KEEP TUNE TO NOAA WEATHER AND LOCAL AND RADIO STATIONS FOR FURTHER
STATEMENTS AND POSSIBLE WARNINGS.

THOMPSON

...CORRECTION FOR WORDING
Special weather statement, Jun 20, 3:33 PM EDT, 1 hour 22 minutes before
OHZ002-003-005>008-016>018-027-202030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOLEDO OH
333 PM EDT TUE JUN 20 1994

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF NORTHWEST OHIO UNTIL
10 PM EDT.

AT 331 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF SHOWERS
AND THUNDERSTORMS EXTENDED FROM FORT WAYNE IN TO JUST WEST OF DETROIT MI.
THE STRONGEST STORM WAS NEAR NAPOLON IN HENRY COUNTY OF NORTHWEST OHIO.

THE LINE OF STORMS WAS MOVING EAST AT 15 MPH. THE STRONGEST STORM WILL
BE NEAR BOWLING GREEN IN WOOD COUNTY BY 4 PM. THESE STORMS ARE CAPABLE
OF PRODUCING VERY HEAVY RAIN...WIND GUSTS TO NEAR 50 MPH AND DANGEROUS
LIGHTNING.

WHEN THUNDERSTORMS ARE OCCURING...SEEK SHELTER INDOORS AND AWAY FROM
WINDOWS UNTIL THE STORMS HAVE PASSED.

DIEFENDERFER
ADDED SEVERE THUNDERSTORM WATCH
Special weather statement, Jun 20, 3:33 PM EDT, 1 hour 22 minutes before
OHZ002-003-005>008-016>018-027-202030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOLEDO OH
333 PM EDT TUE JUN 20 1994

SHOWERS AND THUNDERSTORMS WERE OVER NORTHWEST OHIO.

AT 331 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF SHOWERS
AND THUNDERSTORMS EXTENDED FROM FORT WAYNE IN TO JUST WEST OF DETROIT MI.
THE STRONGEST STORM WAS NEAR NAPOLON IN HENRY COUNTY OF NORTHWEST OHIO.

THE LINE OF STORMS WAS MOVING EAST AT 15 MPH. THE STRONGEST STORM WILL
BE NEAR BOWLING GREEN IN WOOD COUNTY BY 4 PM. THESE STORMS ARE CAPABLE
OF PRODUCING VERY HEAVY RAIN...WIND GUSTS TO NEAR 50 MPH AND DANGEROUS
LIGHTNING.

WHEN THUNDERSTORMS ARE OCCURING...SEEK SHELTER INDOORS AND AWAY FROM
WpINDOWS UNTIL THE STORMS HAVE PASSED.

DIEFENDERFER
Special weather statement, Jun 20, 3:35 PM EDT, 1 hour 20 minutes before
OHZ002-003-005>008-016>018-027-202030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOLEDO OH
333 PM EDT TUE JUN 20 1994

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF NORTHWEST OHIO UNTIL
10 PM EDT.

AT 331 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF SHOWERS
AND THUNDERSTORMS EXTENDED FROM FORT WAYNE IN TO JUST WEST OF DETROIT MI.
THE STRONGEST STORM WAS NEAR NAPOLON IN HENRY COUNTY OF NORTHWEST OHIO.

THE LINE OF STORMS WAS MOVING EAST AT 15 MPH. THE STRONGEST STORM WILL
BE NEAR BOWLING GREEN IN WOOD COUNTY BY 4 PM. THESE STORMS ARE CAPABLE
OF PRODUCING VERY HEAVY RAIN...WIND GUSTS TO NEAR 50 MPH AND DANGEROUS
LIGHTNING.

WHEN THUNDERSTORMS ARE OCCURING...SEEK SHELTER INDOORS AND AWAY FROM
WINDOWS UNTIL THE STORMS HAVE PASSED.

DIEFENDERFER
ADDED SEVERE THUNDERSTORM WATCH
Special weather statement, Jun 20, 4:03 PM EDT, 52 minutes before
OHZ002-003-005>008-016>018-027-202030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOLEDO OH
403 PM EDT TUE JUN 20 1994

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF NORTHWEST OHIO UNTIL
10 PM EDT.

SURFACE REPORTS AND TRAINED SPOTTER REPORTS AT 4 PM EDT INDICATED A LINE
OF THUNDERSTORMS WHICH EXTENDED FROM FORT WAYNE IN TO THE WESTERN BASIN
OF LAKE ERIE. THE STRONGES STORMS WERE NEAR THE OHIO-MICHIGAN STATE LINE
AND IN SOUTH EAST HENRY COUNTY.

THE LINE OF STORMS WAS MOVING EAST AT 35 MPH. THESE STORMS WERE
PRODUCING VERY HEAVY RAIN...WIND GUSTS TO 50 MPH...SMALL HAIL AND
DANGEROUS LIGHTNING. POOR DRAINAGE AREAS AND CITY STREES WERE FLOODING.

WHEN THUNDERSTORMS ARE OCCURING...SEEK SHELTER INDOORS AND AWAY FROM
WINDOWS UNTIL THE STORMS HAVE PASSED. ALSO...BE CAUTIOUS OF STANDING
WATER ON THE ROADWAYS.

DIEFENDERFER
Special weather statement, Jun 20, 4:04 PM EDT, 51 minutes before
OHZ002-003-005>008-016>018-027-202030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOLEDO OH
403 PM EDT TUE JUN 20 1994

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF NORTHWEST OHIO UNTIL
10 PM EDT.

SURFACE REPORTS AND TRAINED SPOTTER REPORTS AT 4 PM EDT INDICATED A LINE
OF THUNDERSTORMS WHICH EXTENDED FROM FORT WAYNE IN TO THE WESTERN BASIN
OF LAKE ERIE. THE STRONGES STORMS WERE NEAR THE OHIO-MICHIGAN STATE LINE
AND IN SOUTH EAST HENRY COUNTY.

THE LINE OF STORMS WAS MOVING EAST AT 35 MPH. THESE STORMS WERE
PRODUCING VERY HEAVY RAIN...WIND GUSTS TO 50 MPH...SMALL HAIL AND
DANGEROUS LIGHTNING. POOR DRAINAGE AREAS AND CITY STREES WERE FLOODING.

WHEN THUNDERSTORMS ARE OCCURING...SEEK SHELTER INDOORS AND AWAY FROM
WINDOWS UNTIL THE STORMS HAVE PASSED. ALSO...BE CAUTIOUS OF STANDING
WATER ON THE ROADWAYS.

DIEFENDERFER

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 20, 4:21 PM EDTSevere Thunderstorm WarningCLEHenry, Putnam39 min
Jun 20, 4:38 PM EDTSevere Thunderstorm WarningCLESeneca37 min
Jun 20, 4:50 PM EDTSevere Thunderstorm WarningCLEWyandot25 min
Jun 20, 5:12 PM EDTSevere Thunderstorm WarningCLELorain63 min
Jun 20, 5:31 PM EDTTornado WarningCLELorain29 min
Jun 20, 5:44 PM EDTSevere Thunderstorm WarningCLECuyahoga46 min
Jun 20, 5:53 PM EDTSevere Thunderstorm WarningCLEMedina52 min
Jun 20, 6:02 PM EDTSevere Thunderstorm WarningCLESummit58 min
Jun 20, 6:19 PM EDTSevere Thunderstorm WarningCLEGeauga41 min
Jun 20, 6:22 PM EDTSevere Thunderstorm WarningCLEPortage68 min
Jun 20, 6:42 PM EDTSevere Thunderstorm WarningCLEWayne48 min
Jun 20, 7:12 PM EDTSevere Thunderstorm WarningCLEHolmes48 min
Jun 20, 7:12 PM EDTSevere Thunderstorm WarningCLEJefferson48 min

Nearby

Severe Thunderstorm Warnings in Ohio, 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.