Alert archive / Indiana / Flash Flood Warnings in 1998

Flash Flood Warning 38, NWS Louisville, KY

July 7, 1998Perry County, Indiana

NWS Louisville, KY issued this flash flood warning at Jul 7, 1998, 5:15 PM EST for Perry County, Indiana. It was in force for 2 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
Jul 7, 1998, 5:15 PM EST (22:15 UTC)
Expired
Jul 7, 1998, 7:15 PM EST
In force
2 hr
Issued by
NWS Louisville, KY
Area
Whole counties

County Perry County, IN

The radar

The Louisville radar (KLVX), 62 km from the middle of the area, began a volume at 22:19 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 12:00Z, 10.3 hours before the alert went out and 217 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 12:00Z on 1998-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 515 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 12:00Z on 1998-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 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
515 J/kg
Mixed-layer CIN
-67 J/kg
Mixed-layer LCL
1076 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
57 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 KSDF 072216
FFWSDF
INC123-080015-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
615 PM EDT TUE JUL 7 1998

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  PERRY COUNTY IN SOUTH CENTRAL INDIANA

* UNTIL 715 PM EST (815 PM EDT)

* AT AT 612 PM EDT / 512 PM EST... NATIONAL WEATHER SERVICE DOPPLER
  RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAIN OVER DUBOIS
  COUNTY... MOVING SOUTHEAST AT 25 MPH.

* STRONG THUNDERSTORMS WILL MOVE OVER PERRY COUNTY PRODUCING
  TORRENTIAL RAINS. REPORTS OF FLOODING HAVE BEEN RECEIVED FROM
  DUBOIS COUNTY WITH THIS STORM.

DON'T DRIVE ACROSS FLOODED ROADS! MOST FLASH FLOOD DEATHS OCCUR IN
AUTOMOBILES.

CS/AB

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 3:57 PM ESTFlash Flood WarningLMKDubois2 hr
Jul 7, 4:31 PM ESTSevere Thunderstorm WarningLMKDubois34 min
Jul 7, 5:10 PM ESTFlash Flood WarningLMKCrawford2 hr
Jul 7, 5:56 PM ESTFlash Flood WarningLMKDubois64 min
Jul 7, 6:31 PM ESTFlash Flood WarningLMKHarrison119 min

Nearby

Flash Flood Warnings in Indiana, 1998Every flash flood warning in 1998

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.