Alert archive / Indiana / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 17, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at May 29, 1987, 7:42 PM EST for Boone County, Indiana. It was in force for 33 min.
The area
The counties it named.
The facts
- Issued
- May 29, 1987, 7:42 PM EST (00:42 UTC)
- Expired
- May 29, 1987, 8:15 PM EST
- In force
- 33 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 00:00Z, 0.7 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
- 1815 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 1678 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 36 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 300043 SVRIND INC011-300130- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE INDIANAPOLIS IN 742 PM EST FRI MAY 29 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 815 PM EST FOR PEOPLE IN THE FOLLOWING COUNTY OF CENTRAL INDIANA...SOUTHERN BOONE AT 740 PM EST...RADAR SHOWED A SEVERE THUNDERSTORM OVER NORTHERN HENDRICKS COUNTY. THIS STORM WAS ABOUT 20 MILES NORTHWEST OF DOWNTOWN INDIANAPOLIS. THIS STORM HAS PRODUCED GOLFBALL SIZE HAIL IN NORTHERN HENDRICKS COUNTY. PERSONS IN SOUTHERN BOONE COUNTY INCLUDING THE CITY OF ZIONSVILLE SHOULD SEEK SHELTER IMMEDIATELY. . THIS STORM IS ACCOMPANIED BY INTENSE LIGHTNING ... STRONG GUSTY WINDS AND HAIL. EDWARDS
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, May 29, 5:59 PM EST, 1 hour 43 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 555 PM EST FRI MAY 29 1987 STRONG THUNDERSTORMS HAVE ERRUPTED RADIPLY OVER WEST CENTRAL INDIANA. AT 555 PM EST WEATHER RADAR SHOWED INTENSE THUNDERSTORMS OVER WESTERN OWEN AND NORTHWEST GREENE COUNTIES. THESE STORMS ARE ABOUT 25 TO 30 MILES SOUTHEAST OF TERRE HAUTE. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 20 MILES AN HOUR. PERSONS IN OWEN COUNTY INCLUDING THE CITY 4OF SPENCER SHOULD BE ALERT FOR STRONG THUNDERSTORMS...CAPABLE OF PRODUCING GUSTY WINDS AND HAIL BETWEEN 600PM AND 630 PM EST. REPORT SEVERE WEATHER TO THE LOCAL POLICE FOR RELAY TO THE NATIONAL WEATHER SERVICE. EDWARDS
Special weather statement, May 29, 6:39 PM EST, 1 hour 3 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 635 PM EST FRI MAY 29 1987 VERY STRONG THUNDERSTORMS CONTINUE TO RUMBLE ACROSS PARTS OF WEST CENTRAL INDIANA. AT 635 PM EST WEATHER RADAR SHOWED INTENSE THUNDERSTORMS REMAINED OVER PARTS OF WESTERN OWEN COUNTY. THUNDERSTORMS ARE LIKELY TO PRODUCE DRENCHING RAINS AND FREQUENT DANGEROUS LIGHTNING. THE STRONGEST THUNDERSTORM WAS ABOUT 25 MILES SOUTHEAST OF TERRE HAUTE. ADDITIONAL THUNDERSTORMS EXTENDED FROM ABOUT 15 MILES WEST OF MUNCIE TO SOUTHWEST OF INDIANAPOLIS THROUGH WESTERN OWEN COUNTY TO ABOUT 30 MILES SOUTH SOUTHEAST OF TERRE HAUTE. MORE THUNDERSTORMS WERE SCATTERED OVER EAST CENTRAL INDIANA AND SOUTHEAST IZLLINOIS. ALL OF THE THUNDERSTORMS WERE MOVING NORTHEAST AT 20 MILES AN HOUR. EDWARDS
Special weather statement, May 29, 7:15 PM EST, 27 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 715 PM EST FRI MAY 29 1987 AN INTENSE THUNDERSTORM WAS OVER WESTERN HENDRICKS COUNTY IN CENTRAL INDIANA. AT 710 PM EST THE THUNDERSTORM WAS ABOUT 25 MILES WEST OF DOWNTOWN INDIANAPOLIS. THIS STORM IS CAPABLE OF PRODUCING HAIL AND GUSTY WINDS. THE STORM OVER NORTHERN OWEN COUNTY HAD WEAKENED BUT WAS STILL CAPABLE OF PRODUCING DRENCHING RAINS AND FREQUENT DANGEROUS LIGHTNING.x PERSONS IN NORTHERN HENDRICKS COUNTY SHOULD BE PREPARED FOR STRONG STORMS BETWEEN 715PM AND 745 PM EST. EDWARDS
The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 7:17 PM EST | Severe Thunderstorm Warning | IND | Hendricks | 28 min |
| May 30, 3:42 PM EST | Severe Thunderstorm Warning | IND | Hancock, Madison | 48 min |
| May 30, 3:51 PM EST | Severe Thunderstorm Warning | IND | Decatur | 59 min |
| May 30, 3:58 PM EST | Severe Thunderstorm Warning | IND | Marshall, Saint Joseph | 47 min |
| May 30, 4:06 PM EST | Tornado Warning | IND | Rush | 44 min |
| May 30, 4:22 PM EST | Severe Thunderstorm Warning | IND | Elkhart, Saint Joseph | 38 min |
| May 30, 4:34 PM EST | Severe Thunderstorm Warning | IND | Henry, Wayne | 46 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.