Alert archive / Indiana / Flash Flood Warnings in 1987

Flash Flood Warning 5, NWS Indianapolis, IN

July 6, 1987Owen County, Putnam County, Indiana

NWS Indianapolis, IN issued this flash flood warning at Jul 6, 1987, 5:06 AM EST for Owen County, Putnam County, Indiana. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued: Jul 6, 1987, 5:06 AM EST (10:06 UTC)
Expired: Jul 6, 1987, 7:30 AM EST
In force: 2 hr
Issued by: NWS Indianapolis, IN
Area: Whole counties

Counties Owen County, IN, Putnam County, IN

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Salem-Leckrone, IL (KSLO), launched 00:00Z, 10.1 hours before the alert went out and 201 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: 7 J/kg
Mixed-layer CIN: -510 J/kg
Mixed-layer LCL: 1876 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 37 m²/s²
0-3 km storm-relative helicity: 124 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 KIND 061006
FFWIND
INC167-021-133-119-061230-
 
BULLETIN - EBS ACTIVATION AND IMMEDIATE BROADCAST REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
506 AM EST MON JUL 6 1987
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING
EFFECTIVE UNTIL 730 AM EST FOR THE FOLLOWING COUNTIES OF
 
WEST CENTRAL INDIANA... VIGO... CLAY... SOUTHERN PUTMAN... OWEN
 
VERY HEAVY RAIN HAVE FALLEN OVER PARTS OF WEST CENTRAL INDIANA SINCE
100 AM EST.  TERRE HAUTE HAS REPORTED ALMOST 3 INCHES OF RAIN SINCE
100 AM EST.  AT 500 AM EST RADAR CONTINUES TO SHOW THAT STRONG
THUNDERSTORMS WERE DUMPING HEAVY RAINS OVER PARTS OF WEST CENTRAL
INDIANA.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT.  DO NOT ATTEMPT TO CROSS A FLOWING STREAM ON FOOT OR IN A
VEICHLE...RAPIDLY RISING WATER MAY SWEEP YOU AWAY.
 
WHEN FLOOD WATERS INUDATE URBAN STREETS...DO NOT ENTER UNDERGROUND
GARAGES...BASEMENTS AND ELAVATORS.
 
HENDRICKSON

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, Jul 6, 12:49 AM EST, 4 hours 17 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS INDIANA
1249 AM EST MON JUL 6 1987

...VERY STRONG THUNDERSTORMS MOVING INTO WEST CENTRAL INDIANA...

AT 1245 AM EST...VERY STRONG THUNDERSTORMS WERE MOVING INTO WEST
CENTRAL INDIANA. THE THUNDERSTORMS STRETCHED FROM NEAR TERRE HAUTE TO
30 MILES NORTH OF TERRE HAUTE.

THE THUNDERSTORMS WERE AT THE HEAD OF A LARGE AREA OF SHOWERS AND
THUNDERSTORMS THAT STRETCHED WEST FROM NEAR THE ILLINOIS AND INDIANA
BORDER BACK INTO ILLINOIS.

MOVEMENT WAS EAST AT 35 MILES AN HOUR.

THE THUNDERSTORMS CONTAIN VERY HEAVY RAIN...GUSTY WINDS...FREQUENT
LIGHTNING AND POSSIBLY SMALL HAIL.

THE THUNDERSTORMS WILL MOVE ACROSS THE CITIES OF ROCKVILLE AND BRAZIL
SHORTLY AFTER 1 AM EST.
STEIGERWALDT

Special weather statement, Jul 6, 1:47 AM EST, 3 hours 19 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS INDIANA
145 AM EST MON JUL 6 1987

...VERY STRONG THUNDERSTORMS MOVING INTO CENTRAL INDIANA...

AT 140 AM EST...VERY STRONG THUNDERSTORMS WERE OVER CENTRAL INDIANA.
THE THUNDERSTORMS STRETCHED FROM SOUTH OF TERRE HAUTE TO GREENCASTLE TO
CRAWFORDSVILLE.

THE THUNDERSTORMS WERE AT THE HEAD OF A LARGE AREA OF SHOWERS AND
THUNDERSTORMS THAT STRETCHED OUT FROM ILLINOIS.

MOVEMENT WAAS EAST AT 35 MILES AN HOUR.

THE THUNDERSTORMS CONTAIN VERY HEAVY RAIN...GUSTY WINDS...FREQUENT
LIGHTNING AND POSSIBLY SMALL HAIL.

AT 110 AM EST VIGO COUNTY SHERIFF REPORTED SMALL HAIL 3/4 MILES NORTH
OF TERRE HAUTE.

AGE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 6, 5:06 AM EST	Flash Flood Warning	IND	Clay, Vigo	2 hr
Jul 6, 2:10 PM EST	Severe Thunderstorm Warning	IND	Lawrence	40 min
Jul 6, 2:44 PM EST	Severe Thunderstorm Warning	IND	Gibson, Knox	61 min
Jul 6, 3:06 PM EST	Severe Thunderstorm Warning	IND	Pike, Vanderburgh, Warrick	39 min
Jul 6, 3:10 PM EST	Flash Flood Warning	IND	Greene	2 hr
Jul 6, 3:15 PM EST	Severe Thunderstorm Warning	IND	Greene, Lawrence	35 min
Jul 6, 3:47 PM EST	Severe Thunderstorm Warning	IND	Dubois	28 min
Jul 6, 5:12 PM EST	Severe Thunderstorm Warning	IND	Montgomery, Tippecanoe	38 min
Jul 6, 6:18 PM EST	Tornado Warning	IND	Newton	42 min
Jul 6, 6:39 PM EST	Severe Thunderstorm Warning	IND	Jasper	31 min
Jul 6, 6:46 PM EST	Severe Thunderstorm Warning	IND	White	34 min

Nearby

Flash Flood Warnings in Indiana, 1987 Every flash flood warning in 1987

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.