Alert archive / Indiana / Flash Flood Warnings in 1998

Flash Flood Warning 3, NWS Indianapolis, IN

April 15, 19984 counties in Indiana

NWS Indianapolis, IN issued this flash flood warning at Apr 15, 1998, 10:09 PM EST for 4 counties in 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
Apr 15, 1998, 10:09 PM EST (03:09 UTC)
Expired
Apr 16, 1998, 2:10 AM EST
In force
4 hr
Issued by
NWS Indianapolis, IN
Area
Whole counties

Counties Bartholomew County, IN, Decatur County, IN, Jackson County, IN, Jennings County, IN

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 3.2 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 1998-04-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 00:00Z on 1998-04-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 137 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
835 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
137 m²/s²
0-3 km storm-relative helicity
283 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KIND 160308
FFWIND
INC005-031-071-079-093-160710-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1009 PM EST WED APR 15 1998

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 210 AM EST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN CENTRAL INDIANA

   ...BARTHOLOMEW COUNTY
   ...DECATUR COUNTY

IN SOUTH CENTRAL INDIANA

   ...JACKSON COUNTY
   ...LAWRENCE COUNTY

IN SOUTHEASTERN INDIANA

   ...NORTHERN JENNINGS COUNTY

STRONG STORMS WITH VERY HEAVY RAINFALL WILL CONTINUE TO MOVE ACROSS
THE AREA THROUGH 2AM. AT 10 PM...NATIONAL WEATHER SERVICE RADAR
ESTIMATED THAT 2 TO 3 INCHES OF RAIN HAD FALLEN THIS EVENING.

AT 935 PM...AN AMATEUR RADIO OPERATOR REPORTED FLOODING FROM
WESTPORT TO COLUMBUS IN BARTHOLOMEW COUNTY. LOW LAND FLOODING CAN BE
EXPECTED ACROSS THE WARNING AREA THROUGH 2 AM.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
 THE
DANGERS OF FLASH FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY.
MOVE UP TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO
FLOODING WHEN WATER BEGINS RISING.

KH

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 15, 7:32 PM ESTSevere Thunderstorm WarningINDGreene, Monroe63 min
Apr 15, 8:55 PM ESTTornado WarningINDLawrence, Martin50 min
Apr 15, 9:47 PM ESTFlash Flood WarningINDDaviess, Greene, Knox, Martin, Monroe3 hr
Apr 15, 9:47 PM ESTFlash Flood WarningINDBrown3 hr
Apr 15, 10:09 PM ESTFlash Flood WarningINDLawrence4 hr
Apr 16, 12:23 AM ESTSevere Thunderstorm WarningINDLawrence32 min
Apr 16, 12:46 AM ESTFlash Flood WarningINDDaviess, Greene, Knox4 hr
Apr 16, 12:46 AM ESTFlash Flood WarningINDBrown, Monroe4 hr
Apr 16, 12:46 AM ESTFlash Flood WarningINDMartin4 hr
Apr 16, 12:51 AM ESTSevere Thunderstorm WarningINDJackson49 min
Apr 16, 12:59 AM ESTFlash Flood WarningINDJackson, Lawrence4 hr
Apr 16, 12:59 AM ESTFlash Flood WarningINDBartholomew, Decatur, Jennings4 hr
Apr 16, 1:34 AM ESTSevere Thunderstorm WarningINDJennings46 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.