Alert archive / Indiana / Flash Flood Warnings in 1992

Flash Flood Warning 40, NWS Indianapolis, IN

September 21, 1992Cass County, Howard County, Miami County, Indiana

NWS Indianapolis, IN issued this flash flood warning at Sep 21, 1992, 8:36 AM EST for Cass County, Howard County, Miami County, Indiana. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Sep 21, 1992, 8:36 AM EST (13:36 UTC)
Expired
Sep 21, 1992, 12:45 PM EST
In force
4 hr
Issued by
NWS Indianapolis, IN
Area
Whole counties

Counties Cass County, IN, Howard County, IN, Miami County, IN

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 12:00Z, 1.6 hours before the alert went out and 188 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 1992-09-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1158 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 1992-09-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 161 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
1158 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
595 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
161 m²/s²
0-3 km storm-relative helicity
158 m²/s²
Significant tornado parameter
0.6
Supercell composite
4.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KIND 211340
FFWIND
INC017-023-067-015-103-157-211745-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
836 AM EST MON SEP 21 1992
 
THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1245 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATION...S...
 
IN CENTRAL INDIANA
 
   ...CLINTON COUNTY...HOWARD COUNTY
 
IN NORTH CENTRAL INDIANA
 
   ...CARROLL COUNTY...CASS COUNTY...MIAMI COUNTY
 
IN WEST CENTRAL INDIANA
 
   ...TIPPECANOE COUNTY
 
RAINFALL OF TWO TO FIVE INCHES FELL OVER PARTS OF CENTRAL INDIANA EARLY
THIS MORNING. FLOODING OF SOME FLOOD PRONE AREAS HAS ALREADY OCCURRED.
 
AT 832 AM EST...RADAR SHOWED THUNDERSTORMS WITH HEAVY RAINFALL OVER PART
OF WEST CENTRAL AND NORTH CENTRAL INDIANA FROM TERRE HAUTE NORTHEAST TO
PERU. THE STORMS WERE MOVING NORTHEAST AND WILL BE MOVING OVER THE
WARNING AREA DURING THE MORNING. PEOPLE IN AREAS THAT RECEIVED HEAVY
RAINFALL THIS MORNING SHOULD BE ESPECIALLY ALERT FOR ADDITIONAL HEAVY
RAINFALL AND FLOODING.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT.  MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS
THE ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT.  TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.
 
DS

What forecasters said that day

The local office's own words before this flash flood 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, Sep 21, 6:12 AM EST, 2 hours 24 minutes before
INZ005-009-211200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
610 AM EST MON SEP 21 1992

A LINE OF THUNDERSTORMS THAT MOVED THROUGH HENDRICKS AND BOONE COUNTIES
OF CENTRAL INDIANA DUMPED COPIOUS AMOUNTS OF RAIN THIS MORNING.
2.00 TO 2.50 INCHES OF RAIN FELL IN NORTHERN HENDRICKS TO SECTIONS OF
BOONE COUNTY. BOONE COUNTY SHERIFF REPORTED A LOT OF PONDING WATER ON
STATE ROAD 421 IN BOONE COUNTY. NUMEROUS COUNTY ROADS IN BOONE COUNTY
WERE FLOODING AS WATER FROM DITCHES AND OPEN FIELDS BEGAN TO FLOOD UNTO
THE COUNTY ROADS.

A SMALL CREEK THAT RUNS THROUGH JAMESTOWN...WHICH IS ON THE BORDER OF
HENDRICKS AND BOONE COUNTY IN CENTRAL INDIANA...WAS BEGINNING TO FLOOD
AND CAUSED MINOR FLOODING OF STREETS IN JAMESTOWN.

DO NOT DRIVE THROUGH FLOODED ROADWAYS OR UNDERPASSES OF BOONE COUNTY
THIS MORNING. REPORTS SEVERE FLOODING TO THE NEAREST LAW ENFORCEMENT
AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE.

STRONG THUNDERSTORMS HAVE MOVED OUT OF HENDRICKS AND BOONE COUNTIES
OF CENTRAL INDIANA THIS MORNING. SCATTERED LIGHT RAINFALL WILL ALSO
END BEFORE DAYBREAK

KOLDITZ

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 21, 8:36 AM ESTFlash Flood WarningINDCarroll, Clinton, Tippecanoe4 hr
Sep 21, 9:55 AM ESTFlash Flood WarningINDBoone, Hendricks3 hr
Sep 21, 10:24 AM ESTFlash Flood WarningINDHamilton, Madison, Tipton3 hr

Nearby

Flash Flood Warnings in Indiana, 1992Every flash flood 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.