Alert archive / Indiana / Flash Flood Warnings in 1987

Flash Flood Warning 10, NWS Indianapolis, IN

July 12, 1987Hancock County, Indiana

NWS Indianapolis, IN issued this flash flood warning at Jul 12, 1987, 9:50 PM EST for Hancock County, Indiana. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Jul 12, 1987, 9:50 PM EST (02:50 UTC)
Expired
Jul 13, 1987, 12:00 AM EST
In force
2 hr
Issued by
NWS Indianapolis, IN
Area
Whole counties

County Hancock 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

Dayton/James M C, OH (KDAY), launched 00:00Z, 2.8 hours before the alert went out and 135 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, Dayton/James M C, OH at 00:00Z on 1987-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2905 joules per kilogram.LCLEL10008507005003002001001 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, Dayton/James M C, OH at 00:00Z on 1987-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 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
2905 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
1137 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
48 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 12, 5:12 PM EST, 4 hours 38 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
505 PM EST SUN JUL 12 1987

THE SEVERE THUNDERSTORMS WARNING FOR BENTON COUNTY HAS EXPIRED.

AT 448 PM EST THE BENTON COUNTY CIVIL DEFENSE REPORTED WINDS OF
20 TO 25 MILES AN HOUR NORTH OF FOWLER.

AT 500 PM EST RADAR SHOWED A LINE OF THUNDERSTORMS FROM PLYMOUTH...
SOUTHWEST THROUGH WINAMAC TO FOWLER..WHICH IS 20 MILES NORTHWEST
OF LAFAYETTE.

THE STRONGEST OF THE STORM WAS JUST NORTH OF FOWLER. ALL OF THE
STORMS WERE MOVING NORTHEAST AT 20 MILES AN HOUR.

THESE STORMS WILL PRODUCE STRONG GUSTY WIND...HEAVY RAIN AND DEADLY
LIGHTNING.

PERSONS IN THE PATH OF THESE STORMS SHOULD SEEK SHELTER. SWIMMERS AND
BOATERS ON LAKE SHAFER AND ON LAKE FREEMAN SHOULD TAKE SHELTER.

THE SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT OF MOST OF WESTERN
AND NORTHERN INDIANA UNTIL 8 PM EST.

PERSONS IN THE WATCH AREA SHOULD CONTINUE TO BE ALERT FOR RAPIDLY
CHANGING WEATHER CONDITiIONS. LISTEN TO THIS STATION FOR FURTHER
INFORMATION FROM THE NATIONAL WEATHER SERVICE.

GERY
Special weather statement, Jul 12, 6:03 PM EST, 3 hours 47 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
600 PM EST SUN JUL 12 1987

AT 530 PM EST 40 MILES THE INDIANA STATE POLICE REPORTED 40 MILE
AN HOUR WINDS JUST NORTH OF REYNOLDS...ABOUT 20 MILES NORTH
OF LAFAYETTE.

THE WHITE COUNTY SHERIFF REPORTED AT 550 PM EST WIND SPEEDS OF 40
MILES AN HOUR IN BUFFALO IN NORTHEAST WHITE COUNTY. ALSO VISIBILITIES
WERE BEING REDUCE TO ZERO IN THE AREA BY HEAVY RAINS.

AT 550 PM EST RADAR SHOWED A LINE OF THUNDERSTORMS FROM 10 MILES SOUTH
OF SOUTH BEND TO 20 MILES SOUTHWEST OF LAFAYETTE.

THE STRONGEST STORM WAS OVER WHITE COUNTY 30 MILES TO THE
NORTHEAST OF LAFAYETTE.

THESE STORMS WILL PRODUCE STRONG GUSTY WIND...HEAVY RAIN AND DEADLY
LIGHTNING AND WERE MOVING EAST AT 25 MILES AN HOUR.
BOATERS ON LAKE SHAFER AND ON LAKE FREEMAN SHOULD REMAIN IN SHELTER.

THE SEVERE THUNDERSTORMS WATCH CONTINUES FOR NORTHERN AND WESTERN
INDIANA UNTIL 8 PM EST

SOME CITIES STILL IN THE WATCH ARE SOUTH BEND...LAFAYETTE...
TERRE HAUTE...EVANSVILLE...LOGANSPORT...VINCENNES AND KOKOMO.

PERSONS IN THE WATCH AREA SHOULD CONTINUE TO BE ALERT FOR RAPIDLY
CHANGING WEATHER CONDITIONS. LISTEN TO THIS STATION FOR FURTHER
INFORMATION FROM THE NATIONAL WEATHER SERVICE.

GERY
Special weather statement, Jul 12, 6:20 PM EST, 3 hours 30 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
615 PM EST SUN JUL 12 1987

AT 610 PM EST RADAR SHOWED A VERY STRONG THUNDERSTORM IN THE
AREA AROUND LOGANSPORT IN CASS COUNTY.

AT 612 PM EST THE INDIANA STATE POLICE REPORTED WIND SPEEDS OF 40
MILES AN HOUR AT LOGANSPORT.

THIS STORM WILL CONTINUE TO MOVE EAST TOWARD THE CITY OF PERU ALONG
US 24.

OTHER THUNDERSTORMS WERE FROM NEAR ROCHESTER..20 MILES NORTH OF
LOGANSPORT AND 10 MILES NORTH OF KOKOMO.

THESE STORMS CAN PRODUCE STRONG GUSTY WIND...HEAVY RAIN AND DEADLY
LIGHTNING AND WERE MOVING EAST AT 25 MILES AN HOUR.

THE SEVERE THUNDERSTORM WATCH CONTINUES FOR NORTHERN AND WESTERN
INDIANA UNTIL 8 PM EST

PERSONS IN THE WATCH AREA SHOULD CONTINUE TO BE ALERT FOR RAPIDLY
CHANGING WEATHER CONDITIONS. LISTEN TO THIS STATION FOR FURTHER
INFORMATION FROM THE NATIONAL WEATHER SERVICE.

GERY
Special weather statement, Jul 12, 7:36 PM EST, 2 hours 14 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
735 PM EST SUN JUL 12 1987

TWO SEVERE THUNDERSTORM WATCHES ARE IN EFFECT FOR MOST OF
INDIANA UNTIL 11 PM EST.

THE WATCHES INCLUDES THAT PART OF INDIANA..SOUTHEAST OF A LINE FROM
SOUTH BEND TO TERRE HAUTE AND NORTH OF A LINE FROM EVANSVILLE TO
CINCINNATI.

SOME CITIES INCLUDED ARE...FORT WAYNE...INDIANAPOLIS..RICHMOND
BLOOMINGTON...COLUMBUS...AND MUNCIE.

AT 727 PM EST RADAR SHOW A VERY STRONG STORM NEAR MARSHALL ILLINOIS
...20 MILES WEST OF TERRE HAUTE. THIS STORM WAS MOVING
EAST AT 25 MILES AN HOUR AND WILL ENTER INDIANA BEFORE 800 PM EST

OTHER STORMS WERE FROM 10 MILES WEST OF LEBANON...30 MILES SOUTHEAST
OF LAFAYETTE TO 10 MILES NORTH OF TERRE HAUTE.

AN OTHER AREA OF THUNDERSTORMS WAS FROM 10 MILES NORTHEAST OF
THE CITY OF MARION TO 5 MILES NORTHEAST OF MUNCIE.

ALL OF THE THUNDERSTORMS WERE MOVING EAST AT 25 AT 30 MILES AN HOUR.

PERSONS IN THE WATCH AREAS SHOULD CONTINUE TO BE ALERT FOR RAPID
CHANGES IN WEATHER CONDITIONS AS THESE STORMS APPROACH.

GERY
Special weather statement, Jul 12, 8:12 PM EST, 1 hour 38 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
810 PM EST SUN JUL 12 1987

AT 800 PM EST RADAR SHOW THUNDERSTORMS CONTINUE TO DEVELOPED OVER
NORTHERN...CENTRAL AND WEST CENTRAL INDIANA.

ONE LINE OF THUNDERSTORMS WAS FROM JUST NORTH OF INDIANAPOLIS SOUTHWEST
TO TERRE HAUTE.  THE STRONGEST STORM WAS 20 NORTHWEST OF DOWNTOWN
INDIANAPOLIS..NORTH OF BROWNSBURG. ANOTHER STRONG STORM WAS 15 MILES
EAST OF TERRE HAUTE NEAR BRAZIL.

ALSO ANOTHER STRONG STORM WAS 12 MILES SOUTH OF TERRE HAUTE.

ANOTHER LINE OF THUNDERSTORMS WAS FROM NEAR FORT WAYNE SOUTH TO 20
MILES SOUTHEAST OF MUNCIE.

ALL OF THE THUNDERSTORMS WERE MOVING EAST AT 25 AT 30 MILES AN HOUR
AND WERE PRODUCING HEAVY RAINS AND STRONG GUSTLY WINDS.

PERSONS IN THE WATCH AREAS SHOULD CONTINUE TO BE ALERT FOR RAPID
CHANGES IN WEATHER CONDITIONS AS THESE STORMS APPROACH.

GERY
Special weather statement, Jul 12, 9:05 PM EST, 45 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
905 PM EST SUN JUL 12 1987

AT 900 PM EST RADAR SHOW A LINE OF THUNDERSTORMS FROM 5 NORTH OF MUNCIE
SOUTHWEST THROUGH INDIANAPOLIS..GREENCASTLE TO ABOUT 25 MILES SOUTH
OF TERRE HAUTE.

THE STRONGEST STORMS WERE IN CENTRAL INDIANA. ONE WAS 10 MILES WEST
OF THE INDIANAPOLIS INTERNATIONAL AIRPORT...SOUTH OF THE CITY OF
DANVILLE. AT 840 PM EST THE INDIANA STATE POLICE REPORTED A FUNNEL
CLOUD SOUTH OF DANVILLE.

ANOTHER STRONG STORM WAS OVER THE NORTHERN PART OF INDIANAPOLIS AND
THE TOWN OF CARMEL AND NOBLESVILLE.

ALSO A STRONG STORM WAS NEAR THE CITY OF MUNCIE.

THESE STRONGER STORMS ARE PRODUCING VERY HEAVY RAIN WHICH WILL CAUSE
PONDING OF WATER ON ROADS AND REDUCE VISIBILITIES.

ALL OF THE THUNDERSTORMS WERE MOVING EAST AT 25 AT 30 MILES AN HOUR.

PERSONS IN THE WATCH AREAS SHOULD CONTINUE TO BE ALERT FOR RAPID
CHANGES IN WEATHER CONDITION AND SHOULD CONTINUE TO LISTEN TO
THIS STATION FOR FURTHER INFROMATION.

A SEVERE THUNDERSTORMS WATCH CONTINUE IN EFFECT UNTIL 11 PM EST FOR
THAT PART OF INDIANA..SOUTHEAST OF A LINE FROM SOUTH BEND TO TERRE
HAUTE AND NORTH OF A LINE FROM EVANSVILLE TO CINCINNATI.
K
SOME CITIES INCLUDED ARE...FORT WAYNE...INDIANAPOLIS..RICHMOND
BLOOMINGTON...COLUMBUS...AND MUNCIE

GERY

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 12, 9:20 PM ESTSevere Thunderstorm WarningINDJohnson25 min
Jul 12, 9:43 PM ESTSevere Thunderstorm WarningINDJackson32 min

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.