Alert archive / Ohio / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 71, NWS Wilmington, OH

July 11, 1990Clermont County, Warren County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Jul 11, 1990, 4:07 PM EDT for Clermont County, Warren County, Ohio. It was in force for 53 min. 2 reports 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: Jul 11, 1990, 4:07 PM EDT (20:07 UTC)
Expired: Jul 11, 1990, 5:00 PM EDT
In force: 53 min
Issued by: NWS Wilmington, OH
Area: Whole counties

Counties Clermont 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

Time	Report	Where	Remark
Jul 11, 4:20 PM EDT	Thunderstorm Wind 0	Clermont, OH
Jul 11, 4:25 PM EDT	Thunderstorm Wind 0	Warren, 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 12:00Z, 8.1 hours before the alert went out and 74 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 98 J/kg
Mixed-layer CIN: -80 J/kg
Mixed-layer LCL: 638 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 82 m²/s²
0-3 km storm-relative helicity: 117 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 
TTAA00 KCVG 112007
SVRCVG
OHC165-025-112100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE COVINGTON KY
407 PM EDT WED JUL 11 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 500 PM EDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE SOUTHWEST PART OF OHIO
      WARREN...CLERMONT

AT 405 PM EDT RADAR INDICATED A LINE OF POSSIBLE SEVERE
THUNDERSTORMS MOVING INTO WESTERN CLERMONT AND WARREN COUNTIES
OF SOUTHWEST OHIO.

WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND NEAR WINDOWS.  DO NOT USE TELEPHONES
OR ELECTRICAL APPLIANCES UNTIL THE STORM HAS PASSED.  MOTORISTS
SHOULD AVOID LOW WATER CROSSINGS.

 JN

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 11, 1:40 PM EDT, 2 hours 27 minutes before

OHZ008-INZ013-KYZ005-111840-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CINCINNATI OH
140 PM EDT WED JUL 11 1990

AT 130 PM EDT...STRONG THUNDERSTORMS HAD DEVELOPED OVER PART OF
SOUTHERN INDIANA.  SHOWERS AND THUNDERSTORMS CONTINUED OVER SOUTHERN
AND EASTERN INDIANA AND OVER CENTRAL OHIO.

THE STRONG THUNDERSTORMS HAD DEVELOPED ABOUT 45 MILES SOUTH OF
INDIANAPOLIS...NEAR COLUMBUS INDIANA...AND JUST SOUTH OF BLOOMINGTON
INDIANA.  THESE THUNDERSTORMS MAY PRODUCE GUSTY WINDS...BRIEF HEAVY
RAINS AND SMALL HAIL.  THEY WERE MOVING SOUTHEAST AT ABOUT 30 MILES
AN HOUR.

SHOWERS AND THUNDERSTORMS EXTENDED OVER A WIDE AREA FROM ABOUT 50 MILES
WEST OF LOUISVILLE KENTUCKY...NORTHEAST TO NEAR COLUMBUS OHIO.

THESE SHOWERS AND THUNDERSTORMS WERE ALSO MOVING SOUTHEAST AT 30 MILES
AN HOUR.
<
GOLDEN

Special weather statement, Jul 11, 2:41 PM EDT, 1 hour 26 minutes before

OHZ008-INZ013-KYZ005-111945-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CINCINNATI OH
240 PM EDT WED JUL 11 1990

AT 230 PM EDT...STRONG THUNDERSTORMS CONTINUED OVER PARTS OF SOUTHERN
AND SOUTHEAST INDIANA.  SHOWERS AND THUNDERSTORMS CONTINUED OVER PARTS
OF SOUTHERN INDIANA...SOUTHWEST AND CENTRAL OHIO AND SOUTHCENTRAL
KENTUCKY.

THE STRONG THUNDERSTORMS EXTENDED IN A LINE FROM ABOUT 35 MILES WEST
OF LOUISVILLE KENTUCKY...NORTHEAST TO NEAR BROOKVILLE INDIANA.  BRIEF
HEAVY RAIN...GUSTY WIND...DANGEROUS LIGHTNING AND SMALL HAIL CAN BE
EXPECTED WITH THESE STORMS.

OTHER SHOWERS AND THUNDERSTORMS WERE SPREAD FROM ABOUT 50 MILES WEST OF
LOUISVILLE KENTUCKY...NORTHEAST TO NEAR COLUMBUS kOHIO AND IN THE LAKE
CUMBERLAND AREA OF SOUTH CENTRAL KENTUCKY.

THESE SHOWERS AND THUNDERSTORMS WERE MOVING SOUTHEAST AT 30 MILES AN
HOUR.

GOLDEN

Special weather statement, Jul 11, 3:45 PM EDT, 22 minutes before

OHZ008-INZ013-KYZ005-112045-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CINCINNATI OH
344 PM EDT WED JUL 11 1990

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR EXTREME SOUTHEAST
INDIANA...SOUTHWEST OHIO AND NORTHERN KENTUCKY UNTIL 10 PM EDT.

AT 330 PM EDT...STRONG THUNDERSTORMS WERE OCCURRING ALONG THE INDIANA
AND KENTUCKY BORDER...AND THEY EXTENDED INTO SOUTHWEST OHIO.  THE
THUNDERSTORMS EXTENDED FROM ABOUT 35 MILES SOUTHWEST OF LOUISVILLE
KENTUCKY...NORTHEAST TO NEAR DAYTON OHIO.

THUNDERSTORMS WERE ALSO OCCURRING ABOUT 60 MILES EAST OF CINCINNATI
AND IN THE LAKE CUMBERLAND AREA OF SOUTH CENTRAL KENTUCKY.

THESE THUNDERSTORMS WERE MOVING EAST AT ABOUT 35 MILES AN HOUR.

BRIEF HEAVY RAIN...SMALL HAIL...GUSTY WINDS AND FREQUENT LIGHTNING HAVE
BEEN REPORTED WITH THESE STORMS.
<
STAY TUNED TO YOUR LOCAL RADIO STATION OR NOAA WEATHER RADIO FOR
FURTHER INFORMATION.

GOLDEN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 11, 6:17 AM EDT	Flash Flood Warning	ILN	Montgomery	3 hr
Jul 11, 8:32 AM EDT	Flash Flood Warning	ILN	Clark, Miami	3 hr
Jul 11, 8:32 AM EDT	Flash Flood Warning	ILN	Darke	3 hr
Jul 11, 9:03 AM EDT	Flash Flood Warning	ILN	Montgomery	2 hr
Jul 11, 4:28 PM EDT	Severe Thunderstorm Warning	ILN	Brown	32 min

Nearby

Severe Thunderstorm Warnings in Ohio, 1990 Every 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.