Alert archive / Indiana / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 24, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Jun 1, 1987, 1:27 PM EST for Tippecanoe County, Indiana. It was in force for 33 min. 1 report 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
- Jun 1, 1987, 1:27 PM EST (18:27 UTC)
- Expired
- Jun 1, 1987, 2:00 PM EST
- In force
- 33 min
- Issued by
- NWS Indianapolis, IN
- Area
- Whole counties
County Tippecanoe 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 |
|---|---|---|---|
| Jun 1, 2:00 PM EST | Hail 1.75 | Tippecanoe, 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
Peoria Regional, IL (KPIA), launched 12:00Z, 6.5 hours before the alert went out and 231 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
- 815 J/kg
- Mixed-layer CIN
- -136 J/kg
- Mixed-layer LCL
- 1127 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 98 m²/s²
- 0-3 km storm-relative helicity
- 110 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 011827
SVRIND
INC157-011900-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
127 PM EST MON JUN 1 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 200 PM EST FOR THE FOLLOWING COUNTY OF
WEST CENTRAL INDIANA... NORTH TIPPERCANOE
AT 125 PM...RADAR SHOWED A SEVERE THUNDERSTORM 8 MILES WEST NORTHWEST
OF LAFAYETTE. THE STORM WAS MOVING EAST AT 20 MPH AND WILL MOVE
THROUGH THE NORTHERN PART OF LAFAYETTE BY 145 PM EST.
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BU<ILDING. DO NOT STAND BY WINDOWS. MOTORISTS SHOULD NOT
DRIVE INTO LOW WATER CROSSINGS.
DSWhat 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 1, 1:22 PM EST, 5 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 120 PM EST MON JUN 1 1987 VERY STRONG THUNDERSTORMS WERE OVER NORTHWEST INDIANA AT 115 PM EST. TWO VERY STRONG STORMS...ONE NORTHWEST OF LAFAYETTE AND THE OTHER NORTHWEST OF BROOKSTON IN WHITE COUNTY CONTINUED TO MOVE ACROSS THE AREA. DANGEROUS LIGHTNING AND BRIEF HEAVY RAINFALL WILL OCCUR WITH THESE STORMS. HAIL AND STRONG WINDS ARE ALSO LIKELY. PERSONS IN THE LAFAYETTE AN4D BROOKSTON SHOULD BE ALERT FOR THREATENING WEATHER CONDITIONS AS THESE STORMS MOVE EAST AT 20 MPH. ECY
The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 2:01 PM EST | Severe Thunderstorm Warning | IND | Tippecanoe | 44 min |
| Jun 1, 3:00 PM EST | Severe Thunderstorm Warning | IND | Fountain, Vermillion | 45 min |
| Jun 1, 3:08 PM EST | Severe Thunderstorm Warning | IND | Boone, Clinton | 27 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.