Alert archive / Indiana / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 84, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 5, 1987, 5:02 PM EST for Daviess County, Martin County, Indiana. It was in force for 58 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 5, 1987, 5:02 PM EST (22:02 UTC)
- Expired
- Jul 5, 1987, 6:00 PM EST
- In force
- 58 min
- Issued by
- NWS Indianapolis, IN
- Area
- Whole counties
Counties Daviess County, IN, Martin 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 5, 5:30 PM EST | Thunderstorm Wind 0 | Daviess, IN | |
| Jul 5, 5:33 PM EST | Thunderstorm Wind 0 | Martin, 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, 10.0 hours before the alert went out and 170 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
- 151 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 575 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 121 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KEVV 052202 SVREVV INC027-101-KYC059-052300- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EVANSVILLE IN 502 PM CDT SUN JUL 5 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 600 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF SOUTHWEST INDIANA...DAVIESS AND MARTIN NORTHWEST KENTUCKY...OHIO AT 4 PM CDT STRONG THUNDERSTORMS WERE MOVING RAPIDLY THROUGH WEST KENTUCKY AND SOUTH INDIANA WITH DAMAGING WINDS. REMEMBER...SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE OR NO ADVANCE WARNING SO BE ON THE LOOKOUT.
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 5, 4:32 PM EST, 30 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS INDIANA 430 PM EST SUN JUL 5 1987 A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 9PM EST FOR PARTS OF SOUTHWEST AND SOUTH CENTRAL INDIANA. AT 420 PM EST A LINE OF STRONG THUNDERSTORMS WAS RACING ACROSS SOUTHWEST INDIANA. THE LINE OF STORMS WAS FROM ABOUT 15 MILES SOUTH WEST OF TERRE HAUTE TO NEAR VINCENNES TO EAST OF EVANSVILLE. SOME OF THE HEAVIER STORMS WILL PRODUCE GUSTY WINDS AND DRENCHING RAINS AS THEY MOVE EAST AT 35 TO 40 MILES AN HOUR. EDWARDS
Special weather statement, Jul 5, 4:48 PM EST, 14 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS INDIANA 545 PM EST SUN JUL 5 1987 A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 9PM EST FOR PARTS OF SOUTHWEST AND SOUTH CENTRAL INDIANA. AT 440 PM EST A LINE OF THUNDERSTORMS OVER EASTCENTRAL ILLINOIS WAS MOVING RAPIDLY TOWARD TERRE HAUTE. THE STORMS COULD PRODUCE GUSTY WINDS OF AROUND 45 MILES AN HOUR AND VERY HEAVY DOWNPOURS. THE STORMS WERE MOVING NORTHEAST AT 35 MILES AN HOUR AND SHOULD ENTER THE TERRE HAUTE AREA BY 520 PM EST. THE STORMS WERE PART OF A LARGE AREA OF THUNDERSTORMS COVERING MUCH OF SOUTHERN ILLINOIS AND SOUTHWEST AND SOUTHCENTRAL INDIANA. REPORT SEVERE WEATHER TO YOUR NEAREST LAW ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE. CT
The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 4:11 PM EST | Severe Thunderstorm Warning | IND | Vanderburgh, Warrick | 34 min |
| Jul 5, 4:25 PM EST | Severe Thunderstorm Warning | IND | Dubois, Perry, Spencer | 65 min |
| Jul 5, 4:50 PM EST | Severe Thunderstorm Warning | IND | Dubois | 25 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.