Alert archive / Indiana / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 77, NWS Wilmington, OH

July 20, 1990Franklin County, Indiana

NWS Wilmington, OH issued this severe thunderstorm warning at Jul 20, 1990, 3:50 PM EST for Franklin County, Indiana. It was in force for 55 min.

The area

The counties it named.

The facts

Issued
Jul 20, 1990, 3:50 PM EST (20:50 UTC)
Expired
Jul 20, 1990, 4:45 PM EST
In force
55 min
Issued by
NWS Wilmington, OH
Area
Whole counties

County Franklin County, IN

The radar

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

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 12:00Z, 8.8 hours before the alert went out and 91 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 12:00Z on 1990-07-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 847 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 12:00Z on 1990-07-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 93 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
847 J/kg
Mixed-layer CIN
-34 J/kg
Mixed-layer LCL
840 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
93 m²/s²
0-3 km storm-relative helicity
122 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCVG 202050
SVRCVG
INC047-202145-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE COVINGTON KY
450 PM EDT FRI JUL 20 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 545 PM EDT FOR PEOPLE IN THE FOLLOWING 
COUNTY

   IN THE SOUTHEAST PART OF INDIANA
      FRANKLIN

AT 445 PM EDT...WEATHER SERVICE RADAR INDICATED A POSSIBLE SEVERE
THUNDERSTORM ABOUT 5 MILES SOUTHEAST OF RUSHVILLE INDIANA...IN
EASTERN RUSH COUNTY INDIANA.

THIS THUNDERSTORM WAS MOVING SOUTHEAST AT ABOUT 20 MILES AN HOUR
AND SHOULD MOVE INTO FRANKLIN COUNTY INDIANA BY ABOUT 500 PM EDT.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADWAYS QUICKLY...
AVOID DRIVING INTO AREAS WHERE WATER COVERS THE ROAD.
>
 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, Jul 20, 3:08 PM EST, 42 minutes before
OHZ008-INZ013-KYZ005-202100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CINCINNATI OH
405 PM EDT FRI JUL 20 1990

THUNDERSTORMS WITH VERY HEAVY RAIN AND SMALL HAIL WERE OVER
SOUTHEAST INDIANA AT 4PM.

THE RADAR INDICATED A CLUSTER OF THUNDERSTORMS WITH VERY HEAVY RAIN
AT 4 PM IN SOUTHERN DEARBORN AND OHIO COUNTIES OF SOUTHEAST INDIANA.
THE STORMS WERE MOVING TO THE EAST 40 MPH.

THE STORMS WILL MOVE OVER THE SOUTHERN HALF OF BOONE AND KENTON
COUNTIES OF NORTHERN KENTUCKY BY 5 PM.  THE STORMS WILL PRODUCE
VERY HEAVY RAIN..SMALL HAIL AND GUSTY WINDS.

END JR
THE THUNDERSTORMS WERE MOVING EAST AT 35 MILES AN HOUR.

JN
CORRECTED TO DELETE HEAVY RAIN FROM MAIN PARAGRAPH
Special weather statement, Jul 20, 3:09 PM EST, 41 minutes before
OHZ008-INZ013-KYZ005-202100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CINCINNATI OH
408 PM EDT FRI JUL 20 1990

THUNDERSTORMS WITH VERY HEAVY RAIN AND SMALL HAIL WERE OVER
SOUTHEAST INDIANA AT 4PM.

THE RADAR INDICATED A CLUSTER OF THUNDERSTORMS WITH VERY HEAVY RAIN
AT 4 PM IN SOUTHERN DEARBORN AND OHIO COUNTIES OF SOUTHEAST INDIANA.
THE STORMS WERE MOVING TO THE EAST 40 MPH.

THE STORMS WILL MOVE OVER THE SOUTHERN HALF OF BOONE AND KENTON
COUNTIES OF NORTHERN KENTUCKY BY 5 PM.  THE STORMS WILL PRODUCE
VERY HEAVY RAIN..SMALL HAIL AND GUSTY WINDS.

END JR
CORRECTED TO DELETE HEAVY RAIN FROM MAIN PARAGRAPH
Special weather statement, Jul 20, 3:11 PM EST, 39 minutes before
OHZ006-007-009-011-202130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE  COLUMBUS OH
410 PM EDT FRI JUL 20 1990

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF CENTRAL OHIO
UNTIL 800 PM EDT AND A FLOOD WATCH IS IN EFFECT FOR TONIGHT.

AT 400 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED AN AREA OF
RAIN SHOWERS AND THUNDERSTORMS EXTENDED FROM JUST SOUTHWEST OF
CLEVELAND SOUTH TO CAMBRIDGE AND EAST TO 20 MILES SOUTH OF COLUMBUS.
THE AREA ALSO EXTENDED NORTH TO MARION THEN NORTHEAST TO CLEVELAND.
THE AREA WAS MOVING EAST SOUTHEAST AT 25 MPH.

ANOTHER AREA OF THUNDERSTORMS PRODUCING VERY HEAVY RAIN WAS MOVING
INTO WEST CENTRAL OHIO AND EXTENDED FROM 20 MILES NORTHEAST OF DAYTON
TO RICHMOND INDIANA. THESE THUNDERSTORMS WERE MOVING EAST AT 25 MILES
AN HOUR.

LISTEN TO NOAA WEATHER RADIO... OR YOUR LOCAL RADIO OR TV STATIONS FOR
STATEMENTS AND POSSIBLE WARNINGS.

GSS
Special weather statement, Jul 20, 3:20 PM EST, 30 minutes before
OHZ006-007-009-011-202130-

SPECIAL WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE  COLUMBUS OH
410 PM EDT FRI JUL 20 1990

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF CENTRAL OHIO
UNTIL 800 PM EDT AND A FLOOD WATCH IS IN EFFECT FOR TONIGHT.

AT 400 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED AN AREA OF
RAIN SHOWERS AND THUNDERSTORMS EXTENDED FROM JUST SOUTHWEST OF
CLEVELAND SOUTH TO CAMBRIDGE AND WEST TO 20 MILES SOUTH OF COLUMBUS.
THE AREA ALSO EXTENDED NORTH TO MARION THEN NORTHEAST TO CLEVELAND.
THE AREA WAS MOVING EAST SOUTHEAST AT 25 MPH.

ANOTHER AREA OF THUNDERSTORMS PRODUCING VERY HEAVY RAIN WAS MOVING
INTO WEST CENTRAL OHIO AND EXTENDED FROM 20 MILES NORTHEAST OF DAYTON
TO RICHMOND INDIANA. THESE THUNDERSTORMS WERE MOVING EAST AT 25 MILES
AN HOUR.

LISTEN TO NOAA WEATHER RADIO... OR YOUR LOCAL RADIO OR TV STATIONS FOR
STATEMENTS AND POSSIBLE WARNINGS.

GSS

CORRECTED FOR TYPO
Special weather statement, Jul 20, 3:25 PM EST, 25 minutes before
OHZ006-007-009-011-202130-

SPECIAL WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE  COLUMBUS OH
410 PM EDT FRI JUL 20 1990

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF CENTRAL OHIO
UNTIL 800 PM EDT AND A FLOOD WATCH IS IN EFFECT FOR TONIGHT.

AT 400 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED AN AREA OF
RAIN SHOWERS AND THUNDERSTORMS EXTENDING FROM JUST SOUTHWEST OF
CLEVELAND SOUTH TO CAMBRIDGE AND WEST TO 20 MILES SOUTH OF COLUMBUS.
THE AREA ALSO EXTENDED NORTH TO MARION THEN NORTHEAST TO CLEVELAND.
THE AREA WAS MOVING EAST SOUTHEAST AT 25 MPH.

ANOTHER AREA OF THUNDERSTORMS PRODUCING VERY HEAVY RAIN WAS MOVING
INTO WEST CENTRAL OHIO AND EXTENDED FROM 20 MILES NORTHEAST OF DAYTON
TO RICHMOND INDIANA. THESE THUNDERSTORMS WERE MOVING EAST AT 25 MILES
AN HOUR.

LISTEN TO NOAA WEATHER RADIO... OR YOUR LOCAL RADIO OR TV STATIONS FOR
STATEMENTS AND POSSIBLE WARNINGS.

GSS

CORRECTED FOR TYPO
Special weather statement, Jul 20, 3:41 PM EST, 9 minutes before
OHZ008-INZ013-KYZ005-202145-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CINCINNATI OH
440 PM EDT FRI JUL 20 1990

AT 430 PM EDT...THUNDERSTORMS WITH VERY HEAVY RAIN AND SMALL HAIL
CONTINUED OVER PARTS OF SOUTHEAST INDIANA AND SOUTHWEST OHIO.

THUNDERSTORMS EXTENDED FROM JUST SOUTH OF INDIANAPOLIS...NORTHEAST TO
ABOUT 25 MILES NORTHEAST OF DAYTON OHIO.

ANOTHER AREA OF THUNDERSTORMS EXTENDED FROM ABOUT 50 MILES WEST OF
LOUISVILLE KENTUCKY...NORTHEAST TO NEAR COLUMBUS OHIO.

THESE AREAS OF THUNDERSTORMS WERE MOVING SOUTHEAST AT ABOUT 20
MILES AN HOUR.

GUSTY WINDS AND DANGEROUS LIGHTNING ARE ALSO POSSIBLE WITH THESE
STORMS.
BE ON THE LOOKOUT FOR SEVERE WEATHER IN YOUR AREA AND LI2STEN TO
YOUR LOCAL RADIO STATION OR NOAA WEATHER RADIO FOR POSSIBLE
WARNINGS.

GOLDEN

Nearby

Severe Thunderstorm Warnings in Indiana, 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; the sounding from the Mesonet's radiosonde archive.