Alert archive / Indiana / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 73, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Jun 29, 1987, 5:54 PM EST for Boone County, Indiana. It was in force for 36 min.
The area
The counties it named.
The facts
- Issued
- Jun 29, 1987, 5:54 PM EST (22:54 UTC)
- Expired
- Jun 29, 1987, 6:30 PM EST
- In force
- 36 min
- Issued by
- NWS Indianapolis, IN
- Area
- Whole counties
County Boone 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 12:00Z, 10.9 hours before the alert went out and 194 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
- 156 J/kg
- Mixed-layer CIN
- -93 J/kg
- Mixed-layer LCL
- 874 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 131 m²/s²
- 0-3 km storm-relative helicity
- 132 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KIND 292254 SVRIND INC011-292330- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE INDIANAPOLIS IN 554 PM EST MON JUN 29 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 630 PM EST FOR THE FOLLOWING COUNTY OF CENTRAL INDIANA... BOONE AT 550 PM EST RADAR INDICATED A SEVERE THUNDERSTORM ABOUT 25 MILES SOUTH OF LAFAYETTE OR JUST TO THE EAST OF CRAWFORDVILLE. THE COUNTY SHERIFF IN CRAWFORDSVILLE REPORTED NUMEROUS TREES DOWN AND SOME POWER LINES HAVE ALSO BEEN BLOWN DOWN IN THE CRAWFORDSVILLE AREA. THIS THUNDERSTORM WAS MOVING EAST AT 40 MPH AND WILL MOVE TO NEAR LEBANON BY 620 PM EST. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. THESE STORMS CAN ALSO PRODUCE A SMALL TORNADO WITH LITTLE OR NO ADVANCE WARNINFG. JEH
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, Jun 29, 2:37 PM EST, 3 hours 17 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS INDIANA 235 PM EST MON JUN 29 1987 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PORTIONS OF NORTHERN INDIANA UNTIL 900 PM EST... AT 230 PM EST...INDIANAPOLIS RADAR SHOWED A SMALL AREA OF INTENSE THUNDERSTORMS OVER PARTS OF EAST CENTRAL ILLINOIS. THE AREA OF THUNDERSTORMS EXTENDED FROM 45 MILES NORTHWEST OF LAFAYETTE NEAR MOROCCO IN CENTRAL NEWTON COUNTY TO ABOUT 15 MILES EAST OF BLOOMINGTON ILLINOIS. THE STRONGEST THUNDERSTORM WAS LOCATED ABOUT 35 MILES NORTH OF CHAMPAIGN ILLINOIS IN CENTRAL FORD COUNTY ILLINOIS. THIS AREA OF THUNDERSTORMS WILL PASS THROUGH NEWTON...JASPER AND NORTHERN BENTON COUNTIES IN NORTHWEST INDIANA BETWEEN 240 AND 320 PM EST THIS AFTERNOON. . GUSTY SURFACE WINDS...HAIL...HEAVY RAINFALL AND DANGEROUS LIGHTNING WILL ACCOMPANY SOME OF THE STRONGER THUNDERSTORMS. THE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 45 MILES AN HOUR. PRZYBYLINSKI
Special weather statement, Jun 29, 3:27 PM EST, 2 hours 27 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS INDIANA 325 PM EST MON JUN 29 1987 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PORTIONS OF NORTHERN INDIANA UNTIL 900 PM EST... AT 320 PM EST...INDIANAPOLIS RADAR SHOWED AN AREA OF INTENSE THUNDERSTORMS OVER PARTS OF NORTHWEST AND WEST CENTRAL INDIANA. THE AREA OF THUNDERSTORMS EXTENDED FROM CENTRAL PULASKI COUNTY ...OR ABOUT 45 MILES NORTH OF LAFAYETTE TO ABOUT 15 MILES NORTH OF CHAMPAIGN ILLINOIS. THE STRONGEST THUNDERSTORMS WERE LOCATED NEAR RENNSELAER IN SOUTHERN JASPER COUNTY AND OVER SOUTHWEST BENTON...NORTHWEST WARREN COUNTIES ...OR ABOUT 30 MILES WEST OF LAFAYETTE. . GUSTY SURFACE WINDS...HAIL...HEA1VY RAINFALL AND DANGEROUS LIGHTNING WILL ACCOMPANY SOME OF THE STRONGER THUNDERSTORMS. THE THUNDERSTORMS WERE MOVING TO THE EAST NORTHEAST AT 45 MILES AN HOUR. PRZYBYLINSKI
The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 2:55 PM EST | Severe Thunderstorm Warning | IND | Benton, Jasper | 40 min |
| Jun 29, 3:07 PM EST | Severe Thunderstorm Warning | IND | Benton, Warren | 38 min |
| Jun 29, 3:45 PM EST | Severe Thunderstorm Warning | IND | Tippecanoe, White | 40 min |
| Jun 29, 4:23 PM EST | Severe Thunderstorm Warning | IND | Cass | 32 min |
| Jun 29, 4:50 PM EST | Tornado Warning | IND | Howard | 35 min |
| Jun 29, 5:27 PM EST | Severe Thunderstorm Warning | IND | Montgomery | 33 min |
| Jun 29, 6:08 PM EST | Severe Thunderstorm Warning | IND | Delaware | 22 min |
| Jun 29, 6:18 PM EST | Severe Thunderstorm Warning | IND | Putnam | 42 min |
| Jun 29, 6:29 PM EST | Severe Thunderstorm Warning | IND | Hendricks | 31 min |
| Jun 29, 6:42 PM EST | Tornado Warning | IND | Hendricks, Marion | 38 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; the sounding from the Mesonet's radiosonde archive.