Alert archive / Indiana / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 91, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 6, 1987, 3:06 PM EST for Pike County, Vanderburgh County, Warrick County, Indiana. It was in force for 39 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 6, 1987, 3:06 PM EST (20:06 UTC)
- Expired
- Jul 6, 1987, 3:45 PM EST
- In force
- 39 min
- Issued by
- NWS Indianapolis, IN
- Area
- Whole counties
Counties Pike County, IN, Vanderburgh County, IN, Warrick County, IN
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 6, 3:25 PM EST | Thunderstorm Wind 0 | Warrick, IN | |
| Jul 6, 3:30 PM EST | Thunderstorm Wind 0 | Pike, IN |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Salem-Leckrone, IL (KSLO), launched 12:00Z, 8.1 hours before the alert went out and 144 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.
- Mixed-layer CAPE
- 2811 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 724 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 151 m²/s²
- 0-3 km storm-relative helicity
- 143 m²/s²
- Significant tornado parameter
- 1.7
- Supercell composite
- 8.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KEVV 062006 SVREVV INC125-163-173-062045- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EVANSVILLE IN 306 PM CDT MON JUL 6 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 345 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF SOUTHWEST INDIANA...PIKE...VANDERBURGH AND WARRICK AT 3 PM CDT...SEVERE THUNDERSTORMS WERE OVER SOUTHWEST INDIANA... MOVING INTO VANDERBURGH AND PIKE COUNTIES...AND WILL ENTER WARRICK COUNTY BEFORE 330 PM. THE STORMS WERE MOVING TOWARD THE EAST AT 35 MPH. IF YOU ARE IN AN AREA THREATENED BY THE STORM..GO TO A REINFORECED SHELTER AND PREPARE FOR DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN AND LIGHTNING. REMEMBER...SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE OR NO ADVANCE WARNING SO BE ON THE LOOKOUT. ZIMMER
What forecasters said that day
The local office's own words before this severe thunderstorm 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, 12:15 PM EST, 2 hours 51 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS INDIANA 1215 PM EST MON JUL 6 1987 ...THERE IS A SEVERE THUNDERSTORM WATCH FOR SOUTHERN INDIANA UNTIL 500 PM EST... THE WATCH IS SOUT OF A LINE FROM 10 MILES NORTH OF VINCENNES TO 45 MILES NORTHEAST OF LOUISVILLE. DANGEROUS LIGHTNING...LARGE HAIL AND DAMAGING WINDS ARE POSSIBLE IN AND CLOSE TO THE WATCH AREA. HEAVY RAINFALL IS ALSO POSSIBLE. AT 1205 PM...THUNDERSTORMS WERE OVER SOUTHWEST INDIANA FROM AROUND WESTPHALIA...OR 15 MILES NORTHEAST OF VINCENNES...TO JUST WEST OF BEDFORD. THE STORMS WERE MOVING SLOWLY EAST. THE STORMS WERE SOME OF THE AREA THAT RECEIVED HEAVY RAINFALL LATE SATURDAY AFTERNOON. HEAVY RAINFWALL IS POSSIBLE THIS AFTERNOON AND THAT COULD LEAD TO FLOODING OF LOW AND FLOOD PRONE AREAS. BE ALERT FOR HEAVY RAINFALL.
Special weather statement, Jul 6, 12:24 PM EST, 2 hours 42 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS INDIANA 1215 PM EST MON JUL 6 1987 ...THERE IS A SEVERE THUNDERSTORM WATCH FOR SOUTHERN INDIANA UNTIL 500 PM EST... THE WATCH IS SOUTH OF A LINE FROM 10 MILES NORTH OF VINCENNES TO 45 MILES NORTHEAST OF LOUISVILLE. DANGEROUS LIGHTNING...LARGE HAIL AND DAMAGING WINDS ARE POSSIBLE IN AND CLOSE TO THE WATCH AREA. HEAVY RAINFALL IS ALSO POSSIBLE. AT 1205 PM...THUNDERSTORMS WERE OVER SOUTHWEST INDIANA FROM AROUND WESTPHALIA...OR 15 MILES NORTHEAST OF VINCENNES...TO JUST WEST OF BEDFORD. THE STORMS WERE MOVING SLOWLY EAST. THE STORMS WERE OVER SOME OF THE AREA THAT RECEIVED HEAVY RAINFALL LATE SATURDAY AFTERNOON. H]EAVY RAINFALL IS POSSIBLE THIS AFTERNOON AND THAT COULD LEAD TO FLOODING OF LOW AND FLOOD PRONE AREAS. BE ALERT FOR HEAVY RAINFALL. DS
Special weather statement, Jul 6, 1:21 PM EST, 1 hour 45 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS INDIANA 120 PM EST MON JUL 6 1987 ...THERE IS A SEVERE THUNDERSTORM WATCH FOR SOUTHERN INDIANA UNTIL 500 PM EST... THE WATCH IS SOUTH OF A LINE FROM 10 MILES NORTH OF VINCENNES TO 45 MILES NORTHEAST OF LOUISVILLE. DANGEROUS LIGHTNING...LARGE HAIL AND DAMAGING WINDS ARE POSSIBLE IN AND CLOSE TO THE WATCH AREA. HEAVY RAINFALL IS ALSO POSSIBLE. AT 115 PM...THUNDERSTORMS WERE OVER SOUTHWEST INDIANA FROM AROUND THE ILLINOIS STATE LINE NEAR WESTPHALIA...TO 10 MILES WEST OF BEDFORD NEAR NEWBERRY AND ODON. STORMS WERE OVER SOME OF THE AREA THAT RECEIVED HEAVY RAINFALL LATE SATURDAY AFTERNOON. HEAVY RAINFALL IS POSSIBLE THIS AFTERNOON AND COULD LEAD TO FLOODING OF LOW AND FLOOD PRONE AREAS. KENYON
Special weather statement, Jul 6, 2:21 PM EST, 45 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS INDIANA 219 PM EST MON JUL 6 1987 A SEVERE THUNDERSTORM WARNING IS IN EFFECT FOR LAWRENCE COUNTY UNTIL 250 PM...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR SOUTHERN INDIANA UNTIL 5 PM...AND A FLASH FLOOD WATCH IS IN EFFECT FOR PART OF WEST CENTRAL...SOUTHWEST AND SOUTH CENTRAL INDIANA FOR THIS AFTERNOON AND EVENING. AT 205 PM EST RADAR SHOWED A LINE OF VERY STRONG THUNDERSTORMS FROM 30 MILES SOUTH OF TERRE HAUTE TO 10 MILES WEST OF SEYMOUR. THE MOST THREATENING STORM WAS 5 MILES WEST OF BEDFORD. THESE STORMS ARE 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 STORMS MAY ALSO PRODUCE DAMAGING WINDS...SMALL HAIL AND FREQUENT DANGEROUS LIGHTNING. ALLSOPP
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, 5:06 AM EST | Flash Flood Warning | IND | Owen, Putnam | 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, 3:10 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
Severe Thunderstorm Warnings in Indiana, 1987Every severe thunderstorm 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.