Alert archive / Indiana / Flash Flood Warnings in 1993

Flash Flood Warning 37, NWS Indianapolis, IN

August 17, 1993Vermillion County, Vigo County, Indiana

NWS Indianapolis, IN issued this flash flood warning at Aug 17, 1993, 5:51 AM EST for Vermillion County, Vigo County, Indiana. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Aug 17, 1993, 5:51 AM EST (10:51 UTC)
Expired
Aug 17, 1993, 9:00 AM EST
In force
3 hr
Issued by
NWS Indianapolis, IN
Area
Whole counties

Counties Vermillion County, IN, Vigo County, IN

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 00:00Z, 10.9 hours before the alert went out and 277 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

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

000 
TTAA00 KIND 171052
FFWIND
INC165-167-171400-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
551 AM EST TUE AUG 17 1993
 
THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  900 AM EST
FOR PEOPLE IN THE FOLLOWING LOCATION...S...
 
IN WEST CENTRAL INDIANA
 
   ...VERMILLION COUNTY...VIGO COUNTY
 
THE VERMILLION COUNTY SHERIFF REPORTED FEATHER CREEK OUT OF ITS BANKS IN
THE CLINTON AREA AT 540 AM EST. NUMEROUS STREETS WERE FLOODED IN
CLINTON.
 
THE VIGO COUNTY SHERIFF REPORTED STREAMS AND CREEKS RISING ACROSS THE
COUNTY WITH SOME FLOODING BEGINNING IN THE FONTANET AREA OF NORTHEAST
VIGO COUNTY.
 
THUNDERSTORMS CONTINUED TO DEVELOP OVER EAST CENTRAL ILLINOIS...AND WILL
BE TRACKING SOUTHEAST ACROSS VERMILLION AND VIGO COUNTIES UNTIL AT LEAST
8 AM EST. SERIOUS FLASH FLOODING IS LIKELY TO DEVELOP.
 
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY.  THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY.  VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY.  MOVE 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, Aug 17, 2:10 AM EST, 3 hours 41 minutes before
INZALL-170800-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
210 AM EST TUE AUG 17 1993

THE SEVERE THUNDERSTORM WATCH FOR PORTIONS OF CENTRAL AND SOUTHERN
INDIANA HAS EXPIRED AS OF 200 AM EST.

HOWEVER A FLASH FLOOD WATCH REMAINS IN EFFECT FOR PORTIONS OF CENTRAL
AND SOUTHEAST INDIANA FOR THE REST OF THE NIGHT.
HENDRICKSON
Special weather statement, Aug 17, 2:11 AM EST, 3 hours 40 minutes before
INZALL-170800-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
210 AM EST TUE AUG 17 1993

THE SEVERE THUNDERSTORM WATCH FOR PORTIONS OF CENTRAL AND SOUTHERN
INDIANA HAS EXPIRED AS OF  200 AM EST.

HOWEVER A FLASH FLOOD WATCH REMAINS IN EFFECT FOR PORTIONS OF CENTRAL
AND SOUTHEAST INDIANA FOR THE REST OF THE NIGHT.
HENDRICKSON

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 16, 7:18 PM ESTSevere Thunderstorm WarningINDHendricks42 min
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, 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

Nearby

Flash Flood Warnings in Indiana, 1993Every flash flood 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.