Alert archive / Indiana / Flash Flood Warnings in 1996

Flash Flood Warning 33, NWS Louisville, KY

May 11, 1996Clark County, Indiana

NWS Louisville, KY issued this flash flood warning at May 11, 1996, 12:51 AM EDT for Clark County, Indiana. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 11, 1996, 12:51 AM EDT (04:51 UTC)
Expired
May 11, 1996, 5:00 AM EDT
In force
4 hr
Issued by
NWS Louisville, KY
Area
Whole counties

County Clark County, IN

The radar

The Louisville radar (KLVX), 60 km from the middle of the area, began a volume at 04:52 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 4.9 hours before the alert went out and 273 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, Nashville Metro, TN at 00:00Z on 1996-05-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 96 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, Nashville Metro, TN at 00:00Z on 1996-05-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 55 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
96 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
1831 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
55 m²/s²
0-3 km storm-relative helicity
97 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSDF 110454
FFWSDF
INC019-110900-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
1251 AM EDT SAT MAY 11 1996
 
THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  500 AM EDT
FOR PERSONS IN THE FOLLOWING LOCATION...
 
IN SOUTH INDIANA
 
   ...CLARK COUNTY
 
AT 1247 AM EDT WEATHER SERVICE DOPPLER RADAR INDICATED HEAVY RAIN
OCCURRING OVER CLARK COUNTY INDIANA. CLARK COUNTY SHERIFF REPORTED
FLOODING IN HENRYVILLE AT THE INTERSECTION OF HIGHWAY 160 AND 31. RADAR
INDICATED MORE THUNDERSTORMS WITH PERIODS OF HEAVY RAIN WILL MOVE ACROSS
CLARK COUNTY THROUGH AT LEAST 3 AM EDT. THIS WILL CAUSE FLOODING TO
INCREASE WITH SWOLLEN CREEKS AND STREAMS COMING OUT OF THEIR BANKS.
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS AND FLASH FLOODS.  IF FLASH FLOODING IS
OBSERVED...ACT QUICKLY.  MOVE UP TO ESCAPE FLOOD WATERS.  DO
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
 
SCHOLZ/KIRKPATRICK
 
&

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, May 10, 8:07 PM EDT, 4 hours 44 minutes before
KYZALL-110200-

SPECIAL WEATHER STATMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
807 PM EDT FRI MAY 11 1996

...SEVERE THUNDERSTORM WATCH CANCELLED FOR KENTUCKY...

SEVERE THUNDERSTORM WATCH NUMBER 346 VALID UNTIL 11 PM EDT (10 PM
CDT) FOR MUCH OF CENTRAL KENTUCKY HAS BEEN CANCELLED.

THE THREAT OF SEVERE WEATHER HAS PASSED FOR CENTRAL KENTUCKY. HOWEVER
A FLASH FLOOD WATCH REMAINS IN EFFECT FOR MUCH OF THIS AREA.

THUNDERSTORMS WITH GUSTY WINDS AND HEAVY RAIN WILL GRADUALLY WEAKEN
AS THEY MOVE ACROSS THE NORTHERN PARTS OF KENTUCKY. HOWEVER NO SEVERE
WEATHER IS EXPECTED WITH THESE STORMS.

STAY TUNED TO NOAA WEATHER RADIO OR COMMERCIAL BROADCAST MEDIA FOR
FURTHER STATEMENTS ON THE THUNDERSTORMS AND POTENTIAL FLASH FLOODING.
SCHOLZ

The office that day

Everything else NWS Louisville, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 11, 2:10 AM EDTFlash Flood WarningLMKFloyd4 hr

Nearby

Flash Flood Warnings in Indiana, 1996Every flash flood warning in 1996

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; radar from the NEXRAD Level II archive.