Alert archive / Ohio / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 9, NWS Cleveland, OH

March 27, 1991Putnam County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Mar 27, 1991, 9:29 PM EST for Putnam County, Ohio. It was in force for 46 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
Mar 27, 1991, 9:29 PM EST (02:29 UTC)
Expired
Mar 27, 1991, 10:15 PM EST
In force
46 min
Issued by
NWS Cleveland, OH
Area
Whole counties

County Putnam County, OH

What was reported inside it

TimeReportWhereRemark
Mar 27, 9:30 PM ESTThunderstorm Wind 52Putnam, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 00:00Z, 2.5 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, Dayton/James M C, OH at 00:00Z on 1991-03-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 448 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, Dayton/James M C, OH at 00:00Z on 1991-03-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 536 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
448 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
812 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
536 m²/s²
0-3 km storm-relative helicity
687 m²/s²
Significant tornado parameter
1.9
Supercell composite
6.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTOL 280229
SVRTOL
OHC137-280315-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TOLEDO OH
929 PM EST WED MAR 27 1991
 
THE NATIONAL WEATHER SERVICE IN TOLEDO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1015 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN NORTHWEST OHIO
 
   ...PUTNAM COUNTY
 
AT 925 PM WEATHER RADAR INDICATED A POSSIBLE SEVERE THUNDERSTORM IN
SOUTH CENTRAL PUTNAM. ALSO A LINE OF THUNDERSTORMS EXTENDED FROM
NORTHEAST OF DETROIT MICHIGAN THROUGH FULTON COUNTRY INTO EASTERN
DEFIANCE COUNTIY IN NORTHWEST OHIO. THE LINE OF THUNDERSTORMS WAS
MOVING SOUTHEAST AROUND 30 MPH.
 
ONE AND ONE-HALF TO TWO INCH HAIL AND STRONG GUSTY WINDS HAVE BEEN
REPORTED WITH THESE THUNDERSTORMS AS THEY PASSED THROUGH FULTON
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 ADVAN@CE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
 
HUGHES

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, Mar 27, 8:46 PM EST, 43 minutes before
OHZ006-011-280400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MANSFIELD OH
845 PM EST WED MAR 27 1991

AT 845 PM EST NATIONAL WEATHER SERVICE RADAR SHOWED A LINE OF
THUNDERSTORMS EXTENDING FROM TOLEDO...SOUTHWEST ALONG THE OHIO...
INDIANA BORDER TO JUST WEST OF DAYTON. THE LINE OF THUNDERSTORMS
WAS MOVING EAST AT ABOUT 50 MPH. AT THIS RATE THE THUNDERSTORMS
WILL MOVE INTO NORTH CENTRAL OHIO BY 1030 PM EST.

THESE THUNDERSTORMS HAVE ALREADY PRODUCED DAMGING WINDS AND TORNADOES
OVER NORTHERN INDIANA THIS EVENING.

...A TORNADO WATCH IS IN EFFECT UNTIL 2AM THURSDAY MORNING...

BANYAS

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 27, 8:45 PM ESTSevere Thunderstorm WarningCLEFulton45 min
Mar 27, 8:59 PM ESTTornado WarningCLEFulton46 min
Mar 27, 9:09 PM ESTSevere Thunderstorm WarningCLEHenry, Lucas51 min
Mar 27, 9:36 PM ESTSevere Thunderstorm WarningCLEHancock54 min
Mar 27, 9:49 PM ESTSevere Thunderstorm WarningCLEWood56 min
Mar 27, 10:01 PM ESTSevere Thunderstorm WarningCLEOttawa, Sandusky, Seneca59 min
Mar 27, 10:07 PM ESTSevere Thunderstorm WarningCLEErie, Huron68 min
Mar 27, 10:46 PM ESTSevere Thunderstorm WarningCLELorain59 min
Mar 27, 11:08 PM ESTSevere Thunderstorm WarningCLECuyahoga67 min
Mar 27, 11:15 PM ESTSevere Thunderstorm WarningCLEHuron, Lorain75 min
Mar 27, 11:24 PM ESTSevere Thunderstorm WarningCLEMedina66 min
Mar 27, 11:40 PM ESTSevere Thunderstorm WarningCLELake65 min
Mar 27, 11:53 PM ESTSevere Thunderstorm WarningCLEAshtabula, Geauga67 min
Mar 28, 12:15 AM ESTSevere Thunderstorm WarningCLESummit, Wayne60 min
Mar 28, 12:36 AM ESTSevere Thunderstorm WarningCLEHolmes, Stark69 min
Mar 28, 12:52 AM ESTSevere Thunderstorm WarningCLEAshtabula53 min
Mar 28, 12:58 AM ESTSevere Thunderstorm WarningCLETrumbull62 min

Nearby

Severe Thunderstorm Warnings in Ohio, 1991Every severe thunderstorm warning in 1991

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.