Alert archive / Indiana / Flash Flood Warnings in 1998

Flash Flood Warning 2, NWS Indianapolis, IN

April 15, 1998Brown County, Indiana

NWS Indianapolis, IN issued this flash flood warning at Apr 15, 1998, 9:47 PM EST for Brown County, Indiana. It was in force for 3 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, 9:47 PM EST (02:47 UTC)
Expired: Apr 16, 1998, 12:50 AM EST
In force: 3 hr
Issued by: NWS Indianapolis, IN
Area: Whole counties

County Brown County, IN

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 2.8 hours before the alert went out and 210 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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 160246
FFWIND
INC013-027-055-083-101-105-160550-

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

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1250 AM EST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN SOUTH CENTRAL INDIANA

   ...SOUTHERN BROWN COUNTY
   ...SOUTHERN MONROE COUNTY

IN SOUTHWESTERN INDIANA

   ...DAVIESS COUNTY
   ...SOUTHEASTERN GREENE COUNTY
   ...KNOX COUNTY
   ...MARTIN COUNTY

STORMS WILL CONTINUE TO MOVE ACROSS SOUTHWEST AND SOUTH CENTRAL
INDIANA THROUGH 1 AM. VERY HEAVY RAINFALL CAN BE EXPECTED WITH THESE
STORMS. AT 940 PM...THE SHERIFF IN KNOX COUNTY REPORTED STREET
FLOODING AROUND VINCENNES. FLOODING WAS ALSO REPORTED FROM WESTPORT
TO COLUMBUS WHERE WATER WAS ACROSS COUNTY ROADS.

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.

Issued	Product	Office	Counties	Lasted
Apr 15, 7:32 PM EST	Severe Thunderstorm Warning	IND	Greene, Monroe	63 min
Apr 15, 8:55 PM EST	Tornado Warning	IND	Lawrence, Martin	50 min
Apr 15, 9:47 PM EST	Flash Flood Warning	IND	Daviess, Greene, Knox, Martin, Monroe	3 hr
Apr 15, 10:09 PM EST	Flash Flood Warning	IND	Bartholomew, Decatur, Jackson, Jennings	4 hr
Apr 15, 10:09 PM EST	Flash Flood Warning	IND	Lawrence	4 hr
Apr 16, 12:23 AM EST	Severe Thunderstorm Warning	IND	Lawrence	32 min
Apr 16, 12:46 AM EST	Flash Flood Warning	IND	Daviess, Greene, Knox	4 hr
Apr 16, 12:46 AM EST	Flash Flood Warning	IND	Brown, Monroe	4 hr
Apr 16, 12:46 AM EST	Flash Flood Warning	IND	Martin	4 hr
Apr 16, 12:51 AM EST	Severe Thunderstorm Warning	IND	Jackson	49 min
Apr 16, 12:59 AM EST	Flash Flood Warning	IND	Jackson, Lawrence	4 hr
Apr 16, 12:59 AM EST	Flash Flood Warning	IND	Bartholomew, Decatur, Jennings	4 hr
Apr 16, 1:34 AM EST	Severe Thunderstorm Warning	IND	Jennings	46 min

Nearby

Flash Flood Warnings in Indiana, 1998 Every 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.