Alert archive / Indiana / Flash Flood Warnings in 1990

Flash Flood Warning 53, NWS Indianapolis, IN

August 21, 1990Carroll County, Indiana

NWS Indianapolis, IN issued this flash flood warning at Aug 21, 1990, 7:43 AM EST for Carroll County, Indiana. It was in force for 107 min.

The area

The counties it named.

The facts

Issued
Aug 21, 1990, 7:43 AM EST (12:43 UTC)
Expired
Aug 21, 1990, 9:30 AM EST
In force
107 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

County Carroll 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, 0.7 hours before the alert went out and 214 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 1990-08-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 38 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 1990-08-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 89 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
38 J/kg
Mixed-layer CIN
-113 J/kg
Mixed-layer LCL
635 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
89 m²/s²
0-3 km storm-relative helicity
102 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 211242
FFWIND
INC015-181-211430-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
743 AM EST TUE AUG 21 1990
 
THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  930 AM EST
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN NORTH CENTRAL INDIANA
          ...CARROLL
IN NORTHWEST INDIANA
          ...SOUTHERN WHITE
 
AT 730 AM EST AN AMATEUR RADIO OPERATOR REPORTED 3.20 INCHES OF RAIN
AT LAKE FREEMAN...ABOUT 20 MILES NORTHWEST OF LAFAYETTE. FLOODING OF
CREEKS AND ROADWAYS WILL CONTINUE UNTIL 9AM EST IN SOUTHERN WHITE
COUNTY.
 
THE HEAVY RAIN WAS OVER CARROLL COUNTY AND WAS MOVING SLOWLY EAST
AND RAINFALL WILL TOTAL NEAR 3 INCHES IN CARROLL COUNTY BETWEEN 730
AND 830 AM EST.
 
THE HEAVY RAIN HAS ENDED AT THIS TIME IN SOUTHERN WHITE COUNTY.
 
MOST DEATHS IN FLASH FLOODING 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.
EDWARDS

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 21, 7:43 AM ESTFlash Flood WarningINDWhite79 min

Nearby

Flash Flood Warnings in Indiana, 1990Every flash flood warning in 1990

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.