Alert archive / Indiana / Flash Flood Warnings in 1989

Flash Flood Warning 71, NWS Indianapolis, IN

August 28, 1989Boone County, Clinton County, Indiana

NWS Indianapolis, IN issued this flash flood warning at Aug 28, 1989, 3:10 PM EST for Boone County, Clinton County, Indiana. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Aug 28, 1989, 3:10 PM EST (20:10 UTC)
Expired
Aug 28, 1989, 6:00 PM EST
In force
3 hr
Issued by
NWS Indianapolis, IN
Area
Whole counties

Counties Boone County, IN, Clinton County, IN

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 12:00Z, 8.2 hours before the alert went out and 196 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 1989-08-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 623 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 1989-08-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 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
623 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
726 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
70 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KIND 282013
FFWIND
INC011-023-045-107-282300-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
310 PM EST MON AUG 28 1989
 
THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  600 PM EST
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN CENTRAL INDIANA
          ...BOONE...CLINTON
IN WEST CENTRAL INDIANA
          ...FOUNTAIN...MONTGOMERY
 
AT 305 PM EST WEATHER SERVICE RADAR SHOWED NUMEROUS THUNDERSTORMS
WITH HEAVY RAINS WERE OCCURRING OVER A LARGE PART OF CENTRAL INDIANA.
THE HEAVIEST RAINS WERE FALLING FROM 20 MILES NORTH OF INDIANAPOLIS
TO JUST NORTH OF GREENCASTLE AND 15 MILES NORTH OF TERRE HAUTE.
 
IN ADDITION SATELLITE PICTURES SHOWED VERY STRONG THUNDERSTORMS
WELL BACK INTO ILLINOIS. THESE STORMS WILL LIKELY MOVE INTO WEST
CENTRAL INDIANA LATER THIS AFTERNOON.
 
THERE IS POTENTIAL FOR VERY SIGNIFICANT FLASH FLOODING. HEAVY
RAINS WILL FALL DURING THE LATE AFTERNOON RUSH HOUR.
 
FOUR INCHES OF RAIN HAS ALREADY FALLEN TODAY AT FRANKFORT IN
CLINTON COUNTY.
 
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.
EDWARDS

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, Aug 28, 9:52 AM EST, 5 hours 18 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
950 AM EST MON AUG 28 1989

STRONG THUNDERSTORMS IN NORTHWEST AND WEST CENTRAL INDIANA WERE
DUMPING HEAVY RAINS.

A GROWING AREA OF SHOWERS AND THUNDERSTORMS WAS MOVING ACROSS
RENNSELAER...MONTICELLO...SOUTH OF LAFAYETTE...OVER FRANKFORT
AND VEEDERSBURG. DANGEROUS LIGHTNING AND VERY HEAVY RAINS CAN
BE EXPECTED WITH THESE STORMS.

AT 949 AM EST THE FOUNTAIN COUNTY SHERIFF REPORTED BLINDING RAINS
IN COVINGTON. THIS RAIN WILL MOVE PARALLEL ACROSS INTERSTATE 74 AND
RESULT IN DANGEROUS DRIVING CONDITIONS.

THE STORMS WERE MOVING EAST AND MAY PRODUCE STREET FLOODING IN SOUTHERN
TIPPECANOE...CLINTON AND FOUNTAIN COUNTIES. RvEPORT FLOODING TO THE
POLICE FOR RELAY TO THE NATIONAL WEATHER SERVICE.
EDWARDS

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 28, 10:47 AM ESTFlash Flood WarningINDClinton118 min
Aug 28, 12:52 PM ESTFlash Flood WarningINDFountain, Tippecanoe2 hr
Aug 28, 12:52 PM ESTFlash Flood WarningINDClinton2 hr
Aug 28, 1:29 PM ESTFlash Flood WarningINDMontgomery91 min
Aug 28, 1:29 PM ESTSevere Thunderstorm WarningINDMontgomery61 min
Aug 28, 2:35 PM ESTFlash Flood WarningINDParke, Vermillion115 min
Aug 28, 2:35 PM ESTSevere Thunderstorm WarningINDParke, Vermillion55 min
Aug 28, 3:10 PM ESTFlash Flood WarningINDFountain, Montgomery3 hr

Nearby

Flash Flood Warnings in Indiana, 1989Every flash flood warning in 1989

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.