Alert archive / Ohio / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 4, NWS Wilmington, OH

May 4, 1990Clinton County, Warren County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at May 4, 1990, 9:31 PM EDT for Clinton County, Warren County, Ohio. It was in force for 59 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 4, 1990, 9:31 PM EDT (01:31 UTC)
Expired
May 4, 1990, 10:30 PM EDT
In force
59 min
Issued by
NWS Wilmington, OH
Area
Whole counties

Counties Clinton County, OH, Warren County, OH

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

TimeReportWhereRemark
May 4, 9:45 PM EDTThunderstorm Wind 0Clinton, 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, 1.5 hours before the alert went out and 56 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 1990-05-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 185 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 1990-05-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 71 square meters per square second.1939587897Sfc1 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
185 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
756 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
71 m²/s²
0-3 km storm-relative helicity
102 m²/s²
Significant tornado parameter
0.1
Supercell composite
2.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCVG 050131
SVRCVG
OHC165-027-050230-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE COVINGTON KY
931 PM EDT FRI MAY 4 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 1030 PM EDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE SOUTHWEST PART OF OHIO
      WARREN...CLINTON

AT 925 PM EDT...RADAR INDICATED A SEVERE THUNDERSTORM MOVING
ACROSS WARREN COUNTY AND INTO CLINTON COUNTY.

AT 925 PM EDT...WARREN COUNTY COMMUNICATIONS REPORTED CARS
OVERTURNED IN LEBANON IN WARREN COUNTY.

THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH...PREPARE FOR
DAMAGING WINDS...LARGE HAIL...AND DEADLY LIGHTNING.  PEOPLE OUTSIDE
SHOULD MOVE TO SHELTER...PREFERABLY INSIDE A STRONG BUILDING.  ONCE
INSIDE...STAY AWAY FROM WINDOWS.

 GOLDEN

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, May 4, 3:41 PM EDT, 5 hours 50 minutes before
OHZ008-KYZ005-INZ013-042040-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE CINCINNATI OH
340 PM EDT FRI MAY 4 1990

THUNDERSTORMS WITH BRIEF VERY HEAVY DOWNPOURS...GUSTY WINDS...SMALL HAIL
AND FREQUENT LIGHTNING CONTINUED ACROSS EXTREME SOUTHEAST INDIANA...
NORTHERN KENTUCKY AND SOUTHWEST OHIO THIS AFTERNOON.

AN AMATEUR RADIO OBSERVER REPORTED THREE QUARTERS OF AN INCH ( .75 )
OF RAINFALL WITHIN A 20 MINUTE PERIOD IN OXFORD OHIO AT 325 PM EDT.

OTHER REPORTS OF VERY HEAVY DOWNPOURS IN THE GREATER CINCINNATI AREA
HAVE BEEN RECEIVED AT OUR OFFICE THIS AFTERNOON.

SHORTLY AFTER 3 PM EDT BRIEF HEAVY RAIN AND WIND GUST TO 37 MPH OCCURED
AT THE GREATER CINCINATI INTERNATIONAL WEATHER SERVICE.

PONDING OF WATER IS LIKELY IN POOR DRAINAGE AREAS...SO PLEASE DON'T TRY
TO CROSS THESE AREAS.

...REMEMBER...A TORNADO WATCH REMAINS IN EFFECT FOR ALL OF THE
GREATER CINCINNATI TRI STATE AREA UNTIL 9 PM EDT...EXCEPT THE
PORTION OF THE TORNADO WATCH THAT COVERS SOUTHEAST INDIANA IS
IN EFFECT UNTIL 6 PM EDT.

SAM
Special weather statement, May 4, 6:45 PM EDT, 2 hours 46 minutes before
OHZ008-KYZ005-INZ013-050040-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE CINCINNATI OH
646 PM EDT FRI MAY 4 1990

...TORNADO WATCH FOR SOUTHWEST OHIO AND NORTHERN KENTUCKY UNTIL
9 PM EDT...
...TORNADO WATCH FOR SOUTHEAST INDIANA UNTIL 10 PM EDT...

AT 635 NATIONAL WEATHER SERVICE RADAR INDICATED AN AREA OF THUNDERSTORMS
IN SOUTHEAST INDIANA FROM 15 MILES NORTH OF MUNCIE SOUTHWEST TO 25 MILES
SOUTHWEST OF INDIANAPOLIS.

ELSEWHERE...SHOWERS AND THUNDERSTORMS EXTENDED FROM 30 MILES EAST OF
CINCINNATI SOUTH TO MANCHESTER KENTUCKY.

MOVEMENT OF THE SHOWERS AND THUNDERSTORMS WAS SOUTHEAST AT 35 MILES
AN HOUR.

PERSONS IN THE TORNADO WATCH AREAS SHOULD BE ON THE LOOKOUT FOR

THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.

KEENEY
Special weather statement, May 4, 7:41 PM EDT, 1 hour 50 minutes before
OHZ005-010-050030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DAYTON OH
740 PM EDT FRI MAY 4 1990

THUNDERSTORMS WITH VERY HEAVY RAIN AND POSSIBLY SMALL HAIL WERE
MOVING INTO SOUTHWEST DARKE COUNTY OHIO AT 735 PM EDT.

NATIONAL WEATHER SERVICE RADAR SHOWED THUNDERSTORMS WITH VERY
HEAVY RAIN ALONG AND NEAR THE OHIO-INDIANA STATE LINE BETWEEN
RICHMOND AND BROOKVILLE INDIANA.  THE THUNDERSTORMS WERE MOVING
EAST AT 35 MILES AN HOUR AND WILL MOVE ACROSS THE SOUTHERN HALF
OF DARKE COUNTY BY 815 PM EDT.

PEOPLE IN DARKE COUNTY FROM GREENVILLE SOUTH SHOULD BE ON THE
LOOKOUT FOR THREATENING WEATHER AND BE PREPARE TO TAKE QUICK
PROTECTIVE ACTION IF SEVERE WEATHER DEVELOPES.

OTHER THUNDERSTORMS ARE EXPECTED TO REACH THE PREBLE COUNTY LINE
BY 800 PM EDT.
.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EDT FOR DARKE...MIAMI
...CHAMPAIGN...CLARK...PREBLE...MONTGOMERY AND GREENE COUNTIES.

LINDSEY
Special weather statement, May 4, 7:44 PM EDT, 1 hour 47 minutes before
OHZ008-KYZ005-INZ013-050140-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE CINCINNATI OH
745 PM EDT FRI MAY 4 1990

...TORNADO WATCH FOR SOUTHWEST OHIO AND NORTHERN KENTUCKY UNTIL
9 PM EDT...
...TORNADO WATCH FOR SOUTHEAST INDIANA UNTIL 10 PM EDT...

AT 730 NATIONAL WEATHER SERVICE RADAR INDICATED AN LINE OF STRONG
THUNDERSTORMS IN SOUTHEAST INDIANA FROM 25 MILES EAST OF MUNCIE
SOUTHWEST TO 55 MILES WEST OF CINCINNATI.

MOVEMENT OF THESE STORMS WAS TO THE SOUTHEAST AT 35 MILES AN HOUR.

THESE STORMS ARE CAPABLE OF PRODUCING HEAVY RAIN...FREQUENT LIGHTNING
AND GUSTY WINDS. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND
POSSIBLE WARNINGS.

ALSO...FAYETTEVILLE IN BROWN COUNTY HAS REPORTED 2.29 INCHES OF
RAIN SINCE 7 AM. FLOODING IS OCCURING ON THE EAST FORK OF THE
LITTLE MIAMI.

THE CINCINNATI AREA CAN EXPECT A LINE OF THUNDERSTORMS TO MOVE
THROUGH THE AREA IN THE NEXT HOUR OR TWO.

KEENEY
Special weather statement, May 4, 9:05 PM EDT, 26 minutes before
OHZ006-050200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE  COLUMBUS OH
904 PM EDT FRI MAY 4 1990

THUNDERSTORMS WITH VERY HEAVY RAIN WERE MOVING INTO CENTRAL OHIO.

AT 900 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED A LINE OF
THUNDERSTORMS WITH VERY HEAVY RAIN FROM URBANA IN CHAMPAIGN COUNTY
EXTENDING SOUTHWEST TO HAMILTON IN BUTLER COUNTY. RADAR SHOWED THE
STRONGEST THUNDERSTORM NEAR URBANA. THE THUNDERSTORMS WERE MOVING
EAST AT 35 MPH AND WILL MOVE INTO UNION AND MADISON COUNTY DURING
THE HOUR.  THESE THUNDERSTORMS WILL BE ACCPMPANIED WITH HEAVY DOWNPOURS
...GUSTY WINDS AND POSSIBLE SMALL HAIL.

PEOPLE IN UNION AND MADISON COUNTIES SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER AND BE PREPARED TO TAKE PROTECTIVE ACTION IF
SEVERE WEATHER DEVELOPS.

WEBER

The office that day

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

IssuedProductOfficeCountiesLasted
May 4, 8:18 PM EDTSevere Thunderstorm WarningILNButler57 min
May 4, 8:23 PM EDTSevere Thunderstorm WarningILNMiami27 min

Nearby

Severe Thunderstorm Warnings in Ohio, 1990Every severe thunderstorm warning in 1990

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.