Alert archive / Indiana / Flash Flood Warnings in 1992

Flash Flood Warning 42, NWS Indianapolis, IN

September 21, 1992Boone County, Hendricks County, Indiana

NWS Indianapolis, IN issued this flash flood warning at Sep 21, 1992, 9:55 AM EST for Boone County, Hendricks County, Indiana. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Sep 21, 1992, 9:55 AM EST (14:55 UTC)
Expired
Sep 21, 1992, 1:00 PM EST
In force
3 hr
Issued by
NWS Indianapolis, IN
Area
Whole counties

Counties Boone County, IN, Hendricks County, IN

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 12:00Z, 2.9 hours before the alert went out and 195 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 211455
FFWIND
INC011-063-211800-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
955 AM EST MON SEP 21 1992
 
THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  100 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATION...S...
 
IN CENTRAL INDIANA
 
   ...BOONE COUNTY...HENDRICKS COUNTY
 
AT 950 AM EST NATIONAL WEATHER SERVICE RADAR INDICATED A LARGE AREA OF
RAIN FROM NORTHWEST OF INDIANAPOLIS TO TERRE HAUTE. HEAVY RAIN WAS OVER
NORTHERN HENDRICKS AND SOUTHERN BONNE COUNTY.
 
PARTS OF BOONE AND HENDRICKS COUNTIES RECIEVED 4 TO 5 INCHES OF RAIN LASNIGHT...AND ADDITIONAL HEAVY RAIN WILL LIKELY CAUSE FLASH FLOODING.
 
THE RAIN WAS MOVING NORTHEAST AT 40 MILES AN HOUR AND
RAIN WILL CONTINUE OVER BOONE AND HENDRICKS COUNTY FOR MUCH OF THE
MORNING.
 
 
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.
 
SBH

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, 3 hours 43 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 WarningINDCass, Howard, Miami4 hr
Sep 21, 8:36 AM ESTFlash Flood WarningINDCarroll, Clinton, Tippecanoe4 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.