Alert archive / Indiana / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 7, NWS Louisville, KY

May 21, 1992Floyd County, Indiana

NWS Louisville, KY issued this severe thunderstorm warning at May 21, 1992, 2:53 PM EDT for Floyd County, Indiana. It was in force for 67 min.

The area

The counties it named.

The facts

Issued
May 21, 1992, 2:53 PM EDT (18:53 UTC)
Expired
May 21, 1992, 4:00 PM EDT
In force
67 min
Issued by
NWS Louisville, KY
Area
Whole counties

County Floyd County, IN

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 12:00Z, 6.9 hours before the alert went out and 229 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 1992-05-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 23 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 1992-05-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 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
23 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
1208 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
9 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 21, 1:09 PM EDT, 1 hour 44 minutes before
KYZ004-INZ015-211810-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KENTUCKY
110 PM EDT TUE MAY 19 1992

...LOCALLY HEAVY RAIN IN SLOW-MOVING STORMS OVER CENTRAL KENTUCKY...

AT 100 PM EDT...STRONG THUNDERSTORMS WERE PRODUCING LOCALLY HEAVY
RAINFALL 20 MILES SOUTH OF LOUISVILLE NEAR SHEPERDSVILLE IN BULLITT
COUNTY.

OTHER SHOWERS AND THUNDERSHOWERS WERE RAPIDLY INCREASING IN NUMBERS
OVER NORTH CENTRAL KENTUCKY AND SOUTH CENTRAL INDIANA AND THE LOUISVILLE
METRO AREA.  THE SHOWERS AND THUNDERSHOWERS WERE NEARLY STATIONARY.

THE SLOW MOVEMENT OF THESE STORMS WAS THE REASON FOR LOCALLY HEAVY
RAINFALL.  ISOLATED SPOTS COULD RECEIVE MORE THAN ONE INCH OF RAIN IN
ONE HOUR RESULTING IN FLOODING OF LOCAL ROADS.  WATER RISES IN LOCAL
CREEKS AND STREAMS WILL ALSO BE POSSIBLE.
<
IF YOU ARE TRAVELING IN CENTRAL KENTUCKY OR SOUTH CENTRAL INDIANA
BE PREPARED FOR REDUCED VISIBILITY DURING DOWNPOURS.  IF YOU ARE
NEAR A CREEK OR ST<REAM...MONITOR WATER LEVELS CLOSELY.

TUCEK
Special weather statement, May 21, 1:13 PM EDT, 1 hour 40 minutes before
KYZ004-INZ015-211810-

SPECIAL WEATHER STATEMENT...CORRECTED DATE
NATIONAL WEATHER SERVICE LOUISVILLE KENTUCKY
110 PM EDT THU MAY 21 1992

...LOCALLY HEAVY RAIN IN SLOW-MOVING STORMS OVER CENTRAL KENTUCKY...

AT 100 PM EDT...STRONG THUNDERSTORMS WERE PRODUCING LOCALLY HEAVY
RAINFALL 20 MILES SOUTH OF LOUISVILLE NEAR SHEPERDSVILLE IN BULLITT
COUNTY.

OTHER SHOWERS AND THUNDERSHOWERS WERE RAPIDLY INCREASING IN NUMBERS
OVER NORTH CENTRAL KENTUCKY AND SOUTH CENTRAL INDIANA AND THE LOUISVILLE
METRO AREA.  THE SHOWERS AND THUNDERSHOWERS WERE NEARLY STATIONARY.

THE SLOW MOVEMENT OF THESE STORMS WAS THE REASON FOR LOCALLY HEAVY
RAINFALL.  ISOLATED SPOTS COULD RECEIVE MORE THAN ONE INCH OF RAIN IN
ONE HOUR RESULTING IN FLOODING OF LOCAL ROADS.  WATER RISES IN LOCAL
CREEKS AND STREAMS WILL ALSO BE POSSIBLE.
<
IF YOU ARE TRAVELING IN CENTRAL KENTUCKY OR SOUTH CENTRAL INDIANA
BE PREPARED FOR REDUCED VISIBILITY DURING DOWNPOURS.  IF YOU ARE
NEAR A CREEK OR STREAM...MONITOR WATER LEVELS CLOSELY.

TUCEK
Special weather statement, May 21, 1:54 PM EDT, 59 minutes before
KYZ004-INZ015-211910-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KENTUCKY
155 PM EDT THU MAY 21 1992

...LOCALLY HEAVY RAIN IN LOUISVILLE METRO AREA...

AT 145 PM EDT...STRONG THUNDERSTORMS WITH VERY HEAVY RAIN WERE JUST
NORTH OF LOUISVILLE AT NEW ALBANY INDIANA AND 10 MILES SOUTHWEST OF
LOUISVILLE NEAR MEDORA IN SOUTHWEST JEFFERSON COUNTY KENTUCKY.

THESE STORMS HAVE BEEN MOVING NORTH ABOUT 10 MPH AND WILL LIKELY CAUSE
LOCAL FLOODING OF ROADWAYS AND POORLY DRAINED AREAS.  THESE STORMS HAVE
ALSO BEEN PRODUCING FREQUENT LIGHTNING.

IF YOU ARE IN THE LOUISVILLE AREA OR TRAVELING WEST OF SOUTH OF THE
CITY...BE PREPARED FOR TORRENTIAL DOWNPOURS AND LOCALIZED FLOODING
OF RO6ADS.

TUCEK
Special weather statement, May 21, 2:38 PM EDT, 15 minutes before
KYZ004-INZ015-211910-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KENTUCKY
235 PM EDT THU MAY 21 1992

...LOCALLY HEAVY RAIN IN LOUISVILLE METRO AREA...

AT 230 PM EDT...STRONG THUNDERSTORMS WITH VERY HEAVY RAIN 10 TO 20
MILES WEST OF LOUISVILLE IN FLOYD...HARRISON AND CLARK COUNTIES OF
INDIANA.

THE STRONGEST STORM WAS IN WESTERN FLOYD COUNTY NEAR GEORGETOWN.
THIS STORM WILL PRODUCE LOCALIZED FLOODING AND STRONG GUSTY WINDS.

ALL STORMS HAVE BEEN MOVING NORTH ABOUT 10 MPH AND MAY ALSO CAUSE
LOCAL FLOODING OF ROADWAYS AND POORLY DRAINED AREAS.  THESE STORMS
HAVE ALSO BEEN PRODUCING FREQUENT LIGHTNING.

IF YOU ARE IN THE LOUISVILLE AREA OR TRAVELING WEST OR SOUTH OF THE
CITY...BE PREPARED FOR TORRENTIAL RAIN AND LOCALIZED FLOODING OF ROADS.

The office that day

Everything else NWS Louisville, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 21, 2:53 PM EDTFlash Flood WarningLMKFloyd67 min
May 21, 3:16 PM EDTFlash Flood WarningLMKHarrison59 min
May 21, 3:16 PM EDTSevere Thunderstorm WarningLMKHarrison44 min

Nearby

Severe Thunderstorm Warnings in Indiana, 1992Every severe thunderstorm warning in 1992

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.