Alert archive / Indiana / Flash Flood Warnings in 2002

Flash Flood Warning 71, NWS Louisville, KY

April 21, 2002Jefferson County, Scott County, Indiana

NWS Louisville, KY issued this flash flood warning at Apr 21, 2002, 7:30 PM EST for Jefferson County, Scott County, Indiana. It was in force for 60 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 21, 2002, 7:30 PM EST (00:30 UTC)
Expired
Apr 21, 2002, 8:30 PM EST
In force
60 min
Issued by
NWS Louisville, KY
Area
Whole counties

Counties Jefferson County, IN, Scott County, IN

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.5 hours before the alert went out and 173 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, Cncnati-Daytn, OH at 00:00Z on 2002-04-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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, Cncnati-Daytn, OH at 00:00Z on 2002-04-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 424 square meters per square second.1939587897117Sfc1 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
1 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
433 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
424 m²/s²
0-3 km storm-relative helicity
516 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KLMK 220033
FFWSDF
INC077-143-220230-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
730 PM EST SUN APR 21 2002

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  JEFFERSON COUNTY IN SOUTH CENTRAL INDIANA
  SCOTT COUNTY IN SOUTH CENTRAL INDIANA

* UNTIL 930 PM EST

* AT 725 PM EST...RADAR ETIMATED THAT 3 TO 4 INCHES OF RAIN          
  FELL LATE THIS AFTERNOON AND EVENING ACROSS SCOTT AND              
  JEFFERSON COUNTIES IN SOUTH CENTRAL INDIANA. LAW ENFORCEMENT       
  OFFICIALS REPORT FLOODING OVER MANY ROADS IN BOTH COUNTIES.        
  ALTHOUGH ADDITIONAL RAIN WILL BE MINIMAL FOR THE REMAINDER OF      
  THE EVENING...FLOODING WILL CONTINUE FOR THE NEXT SEVERAL HOURS.

* SOME LOCATIONS IN THE WARNING INCLUDE MADISON AND SCOTTSBURG

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. DO NOT DRIVE THROUGH FLOODED
ROADWAYS...IT MAY BE DIFFICULT TO JUDGE THE ACTUAL DEPTH OF THE
WATER. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE TO HIGHER
GROUND TO ESCAPE FLOOD WATERS.

$$
STUREY

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 21, 7:33 PM ESTFlash Flood WarningLMKJefferson, Scott117 min

Nearby

Flash Flood Warnings in Indiana, 2002Every flash flood warning in 2002

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.