Alert archive / Indiana / Flash Flood Warnings in 1987

Flash Flood Warning 7, NWS Indianapolis, IN

July 6, 1987Clay County, Vigo County, Indiana

NWS Indianapolis, IN issued this flash flood warning at Jul 6, 1987, 8:35 PM EST for Clay County, Vigo County, Indiana. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Jul 6, 1987, 8:35 PM EST (01:35 UTC)
Expired
Jul 6, 1987, 11:00 PM EST
In force
2 hr
Issued by
NWS Indianapolis, IN
Area
Whole counties

Counties Clay County, IN, Vigo 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, 1.6 hours before the alert went out and 166 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, Salem-Leckrone, IL at 00:00Z on 1987-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Salem-Leckrone, IL at 00:00Z on 1987-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 38 square meters per square second.193958Sfc1 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
1512 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
38 m²/s²
0-3 km storm-relative helicity
148 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KIND 070133
FFWIND
INC167-021-119-070400-

BULLETIN - EBS ACTIVATION AND IMMEDIATE BROADCAST REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
835 PM EST MON JUL 6 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING
EFFECTIVE UNTIL 1100 PM EST FOR THE FOLLOWING COUNTIES OF

WEST CENTRAL INDIANA... VIGO...CLAY AND OWEN

AT 830 PM EST A TELEVISION WEATHERCASTER REPORTED OTTER CREEK ON THE
NORTH SIDE OF TERRE HAUTE WAS OUT OF ITS BANKS. THE ELM GROVE TRAILER
COURT WAS EXPERIENCING HIGH WATER AND SOME EVACUATIONS WERE OCCURRING.

AT 830 PM EST RADAR INDICATED STRONG THUNDERSTORMS HAVE MOVED OUT OF
WEST CENTAL INDIANA...BUT ADDITIONAL RAIN IS LIKELY TO CONTINUE THIS
EVENING IN WEST CENTRAL INDIANA.

A FLASH FLOOD WARNING MEANS FLOODING IS IMMINENT.  TAKE NECESSARY
.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY.  THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOU TO CROSS
SAFELY.  IF CAUBGHT IN RISING WATER...ABANDON YOUR VEHICLE QUICKLY
AND MOVE TO HIGHER GROUND.

EDWARDS

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, 4:05 PM EST, 4 hours 30 minutes before
SPECIAL WEATHER STATEMENT...SUMMARY OF WATCHES IN EFFECT FOR INDIANA...
NATIONAL WEATHER SERVICE INDIANAPOLIS INDIANA
403 PM EST MON JUL 6 1987

HERE IS A SUMMARY OF WEATHER WATCHES NOW IN EFFECT FOR INDIANA.

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR CENTRAL AND SOUTHERN
INDIANA UNTIL 900 PM EST. SOME CITIES INCLUDED ARE TERRE HAUTE...
INDIANAPOLIS...RICHMOND...BLOOMINGTON...COLUMBUS...BEDFORD...VERSAILLES
...SALEM AND NEW ALBANY.

A FLASH FLOOD WATCH IS IN EFFECT OVER PART OF WEST CENTRAL...SOUTHWEST
AND SOUTH CENTRAL INDIANA FOR THE REST OF THIS AFTERNOON AND EVENING.
SOME CITIES INCLUDED ARE BLOOMINGTON...BEDFORD...COLUMBUS...SULLIVAN
AND VINCENNES.

A FLASH FLOOD WARNING REMAINS IN EFFECT FOR GREENE COUNTY OF WEST
CENTRAL INDIANA UNTIL 530 PM. THIS MEANS FLASH FLOODING OF SMALL
STREAMS AND CREEKS AS WELL AS SOME ROADS AND LOW LYING AREAS IS
IMMINENT OR OCCURING IN GREENE COUNTY.

STAY TUNED TO THIS SOURCE FOR ADDITIONAL STGATEMENTS OR WARNINGS.

ALLSOPP
Special weather statement, Jul 6, 4:44 PM EST, 3 hours 51 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS INDIANA
445 PM EST MON JUL 6 1987

SEVERE THUNDERSTORM WATCHES ARE IN EFFECT FOR CENTRAL AND SOUTHERN
INDIANA UNTIL 900 PM EST THIS EVENING. SOME CITIES INCLUDED IN THE
WATCH ARE TERRE HAUTE INDIANAPOLIS BLOOMINGTON COLUMBUS AND BEDFORD.

AT 422 PM EST RADAR AT INDIANAPOLIS SHOWED VERY STRONG THUNDERSTORMS
IN A LINE FROM OWENSBURG IN GREENE COUNTY TO NEAR BEDFORD AND TO
CROTHERVILLE IN JACKSON COUNTY AND LEXINGTON INDIANA WHICH IS 25 NORTH
OF LOUISVILLE KENTUCKY.

THESE STORMS WERE PRODUCING TORRENTIAL RAINS OVER ALREADY RAIN-SOAKED
GROUND. PEOPLE ALONG SMALL STREAMS AND CREEKS SHOULD BE ALERT TO
RAPIDLY RISING WATER. HEAVY RAINS WILL COVER ROADS SO MOTORISTS SHOULD
DRIVE WITH EXTREME CAUTION. DO NOT ATTEMPT TO CROSS FLOWING WATER.

SOME OF THE HEAVIER STORMS MAY ALSO PRODUCE DAMAGING WINDS HAIL AND
DANGEROUS LIGHTNING AS IT MOVES EAST AT 30 MILES AN HO^UR. IF THREATENING
CONDITIONS ARE SIGHTED MOVE TO A SAFE PLACE AT ONCE. REPORTS SEVERE
WEATHER TO YOUR NEAREST LAW ENFORCEMENT AGENCY FOR RELAY TO THE
NATIONAL WEATHER SERVICE.

KOLDITZ
Special weather statement, Jul 6, 5:30 PM EST, 3 hours 5 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS INDIANA
530 PM EST MON JUL 6 1987

SEVERE THUNDERSTORM WATCHES ARE IN EFFECT FOR CENTRAL AND SOUTHERN
INDIANA UNTIL 900 PM EST AND FOR SOUTHWEST INDIANA UNTIL 10 PM EST.
SOME CITTIES INCLUDED ARE TERRE HAUTE INDIANAPOLIS BLOOMINGTON
COLUMBUS AND BEDFORD.

A FLASH FLOOD WATCH CONTINUES IN EFFECT FOR PARTS OF WEST CENTRAL...
SOUTHWEST AND SOUTH CENTRAL INDIANA INTO THE EVENING. SOME CITIES
INCLUDED ARE BLOOMINGTON...BEDFORD...COLUMBUS...SULLIVAN AND VINCENNES.

THE FLASH FLOOD WARNING FOR GREEN COUNTY OF WEST CENTRAL INDIANA HAS
EXPIRED AT 530 PM EST.
A SEVERE THUNDERSTORM WARNING ISSUED AT 512 PM EST IS IN EFFECT UNTIL
550 PM EST ALONG THE EXTREME SOUTHERN BORDER OF TIPPECANOE COUNTY AND
EXTREME NORTHERN MONTGOMERY COUNTY. MOVEMENT WAS SLIGHTLY SOUTH OF EAST
AND THE TOWN OF LINDEN MAY FEEL THE EFFECTS OF THE STORM AT 530 PM EST.
.
TORRENTIAL RAINS...DAMAGING WINDS AND HAIL MAY ACCOMPANY THE STORM
AS IT PASSES THROUGH.

IF THREATENING CONDITIONS ARE SIGHTED MOVE TO A SAFE PLACE AT ONCE.
REPORT SEVERE WEATHER TO YOUR NEAREST LAW ENFORCEMENT AGENCY FOR RELAY
TO THE NATIONAL WEATHER SERVICE.

KOLDITZ
Special weather statement, Jul 6, 6:05 PM EST, 2 hours 30 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS INDIANA
600 PM EST MON JUL 6 1987

THE SEVERE THUNDERSTORM WARNING FOR EXTREME SOUTHERN TIPPECANOE AND
EXTREME NORTHERN MONTGOMERY COUNTIES EXPIRED AT 550 PM EST THIS EVENING.

THE HEAVIEST PART OF THE THUNDERSTORM WENT JUST SOUTH OF LINDEN. AT 539
PM EST AMATEUR RADIO OPERATORS REPORTED A FUNNEL CLOUD ALOFT 2 MILES
SOUTH OF LINDEN. BY 543 PM THE FUNNEL WENT BACK INTO THE CLOUDS. AT
555 PM RADAR AT INDIANAPOLIS SHOWED THE STORM DECREASING IN INTENSITY.
STATE POLICE AT LAFAYETTE REPORTED TORRENTIAL RAINS AND VIVID LIGHTNING
DISPLAY IN THE LINDEN AREA. NO FLOODING OCCURRED.

THE STORM WAS MOVING EAST AT 15 TO 20 MILES AN HOUR TOWARD COLFAX IN
CLINTON COUNTY. TORRENTIAL RAINS...STRONG GUSTY WINDS AND DANGEROUS
LIGHTNING MAY ACCOMPANY THIS STORM AS IT TRACKS EAST.
.
IF THREATENING CONDITIONS ARE SIGHTED MOVE TO A SAFE PLACE AT ONCE.
REPORT SEVERE WEATHER TO YOUR NEAREST LAW ENFORCEMENT AGENCY FOR RELAY
TO THE NATIONAL WEATHER SERVICE.

KOLDITZ
Special weather statement, Jul 6, 7:43 PM EST, 52 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS INDIANA
745 PM EST MON JUL 6 1987

THE SEVERE THUNDERSTORM WARNING FOR JASPER AND NORTHERN WHITE COUNTIES
EXPIRED AT 710 AND 720 PM EST RESPECTIVELY. SEVERE THUNDERSTORM
WARNINGS IS IN EFFECT FOR SOUTHERN PULASKI COUNTY UNTIL 745 PM AND FOR
NORTHEAST BENTON AND SOUTHERN WHITE COUNTIES UNTIL 750 PM EST. ANOTHER
WARNING WAS ISSUED AT 735 PM EST FOR NORTHERN VIGO AND NORTHERN CLAY
COUNTIES OF WEST-CENTRAL INDIANA AND IS VALID UNTIL 800 PM EST.

AT 740 PM EST RADAR AT INDIANAPOLIS SHOWED A LINE OF STRONG THUNDER-
STORMS MOVING THROUGH NORTHERN VIGO AND CLAY COUNTIES. SHERIFF AT
BRAZIL REPORTED DAMAGING WINDS AND CONTINUOUS THUNDER AT BRAZIL IN
WEST-CENTRAL INDIANA. TREES AND POWER LINES WERE DOWN IN PRAIRIETOWN
IN VIGO COUNTY.

IF THREATENING CONDITIONS ARE SIGHTED MOVE TO A SAFE PLACE AT ONCE.
REPORTS SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY FOR RELAY
TO THE NATIONAL WEATHER SERVICE.
KOLDITZ

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 7:11 PM ESTSevere Thunderstorm WarningINDPulaski34 min
Jul 6, 7:20 PM ESTSevere Thunderstorm WarningINDBenton, White30 min
Jul 6, 7:33 PM ESTSevere Thunderstorm WarningINDClay, Vigo27 min
Jul 6, 7:42 PM ESTSevere Thunderstorm WarningINDParke33 min
Jul 6, 7:52 PM ESTSevere Thunderstorm WarningINDCarroll, Tippecanoe38 min
Jul 6, 8:35 PM ESTFlash Flood WarningINDOwen2 hr

Nearby

Flash Flood Warnings in Indiana, 1987Every 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.