Alert archive / Indiana / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 237, NWS Indianapolis, IN

August 16, 1993Hendricks County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Aug 16, 1993, 7:18 PM EST for Hendricks County, Indiana. It was in force for 42 min.

The area

The counties it named.

The facts

Issued
Aug 16, 1993, 7:18 PM EST (00:18 UTC)
Expired
Aug 16, 1993, 8:00 PM EST
In force
42 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

County Hendricks County, IN

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 00:00Z, 0.3 hours before the alert went out and 198 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 1993-08-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2651 joules per kilogram.LCLEL10008507005003002001001 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 1993-08-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 square meters per square second.193958Sfc1 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
2651 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
768 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
154 m²/s²
Significant tornado parameter
1.8
Supercell composite
9.3

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, Aug 16, 4:00 PM EST, 3 hours 18 minutes before
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Special weather statement, Aug 16, 4:01 PM EST, 3 hours 17 minutes before
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Special weather statement, Aug 16, 5:08 PM EST, 2 hours 10 minutes before
INZ004-005-007-008-009-011-012-162310-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
508 PM EST MON AUG 16 1993

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR A PORTION OF WEST CENTRAL
INDIANA UNTIL 10 PM EST.

AT 500 PM EST WEATHER SERVICE RADAR SHOWED VERY STRONG THUNDERSTORMS
ACROSS FAR SOUTHEAST INDIANA EXTENDING FROM CINCINNATI OHIO TO 30
MILES NORTHEAST OF LOUISVILLE KENTUCKY. THESE STORMS WERE MOVING TO
THE SOUTHEAST AT 20 TO 25 MILES AN HOUR.

AT 505 PM EST NO THUNDERSTORM ACTIVITY HAD YET BEEN INDICATED ACROSS
WEST CENTRAL INDIANA. HOWEVER...SCATTERED THUNDERSTORMS WERE BEGINNING
TO DEVELOP ACROSS PORTIONS OF CENTRAL ILLINOIS. THE ATMOSPHERE OVER
CENTRAL INDIANA REMAINS FAVORABLE FOR RAPID THUNDERSTORM DEVELOP.

PEOPLE IN CENTRAL INDIANA SHOULD REMAIN ALERT TO CHANGING WEATHER
CONDITIONS AND BE PREPARED TO SEEK SAFE SHELTER IF THREATENING
WEATHER APPROACHES OR A WARNING IS ISSUED.

TMA
Special weather statement, Aug 16, 5:10 PM EST, 2 hours 8 minutes before
INZ004-005-007-008-009-011-012-162310-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
508 PM EST MON AUG 16 1993

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR A PORTION OF WEST CENTRAL
INDIANA UNTIL 10 PM EST.

AT 500 PM EST WEATHER SERVICE RADAR SHOWED VERY STRONG THUNDERSTORMS
ACROSS FAR SOUTHEAST INDIANA EXTENDING FROM CINCINNATI OHIO TO 30
MILES NORTHEAST OF LOUISVILLE KENTUCKY. THESE STORMS WERE MOVING TO
THE SOUTHEAST AT 20 TO 25 MILES AN HOUR.

AT 505 PM EST NO THUNDERSTORM ACTIVITY HAD YET BEEN INDICATED ACROSS
WEST CENTRAL INDIANA. HOWEVER...SCATTERED THUNDERSTORMS WERE BEGINNING
TO DEVELOP ACROSS PORTIONS OF CENTRAL ILLINOIS. THE ATMOSPHERE OVER
CENTRAL INDIANA REMAINS FAVORABLE FOR RAPID THUNDERSTORM DEVELOP.

PEOPLE IN CENTRAL INDIANA SHOULD REMAIN ALERT TO CHANGING WEATHER
CONDITIONS AND BE PREPARED TO SEEK SAFE SHELTER IF THREATENING
WEATHER APPROACHES OR A WARNING IS ISSUED.

TMA
Special weather statement, Aug 16, 6:29 PM EST, 49 minutes before
INZ004-005-007-008-009-011-012-170030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
629 PM EST MON AUG 16 1993

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR A PORTION OF WEST
CENTRAL INDIANA UNTIL 10 PM EST.

AT 626 PM EST WEATHER SERVICE RADAR SHOWED AN AREA OF STRONG THUNDER-
STORMS ACROSS SOUTHEAST INDIANA FROM 20 MILES SOUTH OF COLUMBUS TO
CINCINNATI OHIO. THESE STORMS WERE MOVING TO THE SOUTHEAST AT 20 TO
25 MILES AN HOUR.

AT 628 PM EST SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS WERE ACROSS
PORTIONS OF WEST CENTRAL INDIANA FROM 10 MILES SOUTHWEST OF LAFAYETTE
TO CRAWFORDSVILLE. THE ATMOSPHERE OVER WEST CENTRAL INDIANA REMAINS
FAVORABLE FOR RAPID THUNDERSTORM DEVELOP.

PEOPLE IN CENTRAL INDIANA SHOULD REMAIN ALERT TO CHANGING WEATHER
CONDITIONS AND BE PREPARED TO SEEK SAFE SHELTER IF THREATENING
WEATHER APPROACHES OR A WARNING IS ISSUED.

TMA
Special weather statement, Aug 16, 6:31 PM EST, 47 minutes before
INZ004-005-007-008-009-011-012-170030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
629 PM EST MON AUG 16 1993

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR A PORTION OF WEST
CENTRAL INDIANA UNTIL 10 PM EST.

AT 626 PM EST WEATHER SERVICE RADAR SHOWED AN AREA OF STRONG THUNDER-
STORMS ACROSS SOUTHEAST INDIANA FROM 20 MILES SOUTH OF COLUMBUS TO
CINCINNATI OHIO. THESE STORMS WERE MOVING TO THE SOUTHEAST AT 20 TO
25 MILES AN HOUR.

AT 628 PM EST SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS WERE ACROSS
PORTIONS OF WEST CENTRAL INDIANA FROM 10 MILES SOUTHWEST OF LAFAYETTE
TO CRAWFORDSVILLE. THE ATMOSPHERE OVER WEST CENTRAL INDIANA REMAINS
FAVORABLE FOR RAPID THUNDERSTORM DEVELOP.

PEOPLE IN CENTRAL INDIANA SHOULD REMAIN ALERT TO CHANGING WEATHER
CONDITIONS AND BE PREPARED TO SEEK SAFE SHELTER IF THREATENING
WEATHER APPROACHES OR A WARNING IS ISSUED.

TMA

The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 16, 9:01 PM ESTSevere Thunderstorm WarningINDJohnson44 min
Aug 16, 9:08 PM ESTSevere Thunderstorm WarningINDMorgan52 min
Aug 16, 9:28 PM ESTFlash Flood WarningINDDecatur3 hr
Aug 16, 9:56 PM ESTFlash Flood WarningINDMorgan3 hr
Aug 16, 10:17 PM ESTSevere Thunderstorm WarningINDBrown, Morgan43 min
Aug 16, 10:24 PM ESTSevere Thunderstorm WarningINDJennings51 min
Aug 16, 11:02 PM ESTFlash Flood WarningINDBartholomew, Brown3 hr
Aug 16, 11:02 PM ESTFlash Flood WarningINDJennings3 hr
Aug 16, 11:52 PM ESTFlash Flood WarningINDMonroe3 hr
Aug 17, 12:21 AM ESTFlash Flood WarningINDJackson3 hr
Aug 17, 12:52 AM ESTFlash Flood WarningINDHendricks, Putnam3 hr
Aug 17, 1:06 AM ESTFlash Flood WarningINDMorgan3 hr
Aug 17, 1:55 AM ESTFlash Flood WarningINDBrown2 hr
Aug 17, 2:46 AM ESTFlash Flood WarningINDParke3 hr
Aug 17, 3:06 AM ESTFlash Flood WarningINDMonroe3 hr
Aug 17, 3:43 AM ESTFlash Flood WarningINDBrown, Jackson, Monroe3 hr
Aug 17, 3:43 AM ESTFlash Flood WarningINDMorgan, Parke, Putnam3 hr
Aug 17, 3:43 AM ESTFlash Flood WarningINDHendricks3 hr
Aug 17, 4:32 AM ESTFlash Flood WarningINDClay, Owen2 hr
Aug 17, 5:51 AM ESTFlash Flood WarningINDVermillion, Vigo3 hr
Aug 17, 7:08 AM ESTFlash Flood WarningINDBrown, Jackson, Monroe3 hr
Aug 17, 7:08 AM ESTFlash Flood WarningINDClay, Parke, Putnam, Vermillion, Vigo3 hr
Aug 17, 7:08 AM ESTFlash Flood WarningINDMorgan, Owen3 hr
Aug 17, 6:15 PM ESTSevere Thunderstorm WarningINDClay, Jasper, Richland45 min

Nearby

Severe Thunderstorm Warnings in Indiana, 1993Every severe thunderstorm warning in 1993

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.