Alert archive / Indiana / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 97, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 1, 1986, 3:14 PM CDT for Vanderburgh County, Warrick County, Indiana. It was in force for 46 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 1, 1986, 3:14 PM CDT (20:14 UTC)
- Expired
- Jul 1, 1986, 4:00 PM CDT
- In force
- 46 min
- Issued by
- NWS Indianapolis, IN
- Area
- Whole counties
Counties 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 1, 3:18 PM CDT | Thunderstorm Wind 52 | Vanderburgh, IN | |
| Jul 1, 3:18 PM CDT | Thunderstorm Wind 0 | Vanderburgh, 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, 8.2 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
- 1991 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 566 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 59 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KEVV 012014 SVREVV INC163-173-012100- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EVANSVILLE IN 314 PM CDT TUE JUL 1 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 400 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF SOUTHWEST INDIANA...EASTERN VANDERBURGH AND WESTERN WARRICK AT 3PM CDT WEATHER RADAR INDICALED A SEVERE THUNDERSTORM OVER EVANSVILLE MOVING MEAST AT 25 TO 30 MILES AN HOUR. THIS STORM IS ACCOMPANIED BY FREQUENT AND DANGEROUS LIGHTING.
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 1, 2:44 PM CDT, 30 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 240 PM EST TUE JUL 1 1986 ...SEVERE THUNDERSTORM WATCH FOR MOST OF SOUTHERN INDIANA TILL 9 PM... THE SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THAT PART OF INDIANA SOUTH OF A LINE FROM 10 MILES NORTH OF SULLIVAN TO BROOKVILLE. THE WATCH WILL EXPIRE AT 9 PM EST. AT 235 PM EST RADAR SHOWED A LARGE AREA OF RAIN COVERING MUCH OF THE NORTHERN HALF OF INDIANA. A NARROW LINE OF THUNDERSTORMS WAS EMBEDDED IN THE AREA FROM SOUTHERN WHITLEY COUNTY TO BUNKER HILL TO NORTHERN VERMILLION COUNTY. THE STRONGEST STORMS WERE IN WEST CENTRAL INDIANA NEAR CAYUGA IN NORTHERN VERMILLION COUNTY AND VEEDERSBURG IN SOUTHEAST FOUNTAIN COUNTY. THESE STORMS DID NOT LOOK SEVERE AT 235 PM BUT COULD BE CAPABLE OF PRODUCING HEAVY RAIN..SMALL HAIL..AND GUSTY WINDS OF 30 TO 40 MPH. PEOPLE IN THE WATCH AREA SHOULD REMAIN ALERT FOR THREATENING WEATHER AND SHOULD REPORT SEVERE WEATHER 5TO THE LOCAL POLICE..SHERIFF..OR THE STATE POLICE. DF
Special weather statement, Jul 1, 3:06 PM CDT, 8 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 305 PM EST TUE JUL 1 1986 ...SEVERE THUNDERSTORM WATCH FOR MOST OF SOUTHERN INDIANA TILL 9 PM... THE SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THAT PART OF INDIANA SOUTH OF A LINE FROM 10 MILES NORTH OF SULLIVAN TO BROOKVILLE. THE WATCH WILL EXPIRE AT 9 PM EST. AT 300 PM EST RADAR SHOWED A LARGE AREA OF RAIN COVERING MUCH OF NORTHERN AND CENTRAL INDIANA. THUNDERSTORMS EMBEDDED IN THE RAIN EXTENDED FROM ABOUT 15 MILES SOUTHWEST OF FORT WAYNE TO JUST NORTH OF CRAWFORDSVILLE AND ON BACK INTO ILLINOIS. THE STRONGEST STORM WAS ABOUT 5 MILES SOUTHWEST OF CRAWFORDSVILLE. ITS SOUTHEAST MOVEMENT WILL TAKE IT SOUTH OF THE CRAWFORDSVILLE AREA. ALL THE THUNDERSTORMS WERE MOVING SOUTHEAST AT 30 MILES AN HOUR. THE STORMS DID NOT LOOK SEVERE AT 300 PM EST BUT STILL COULD BE CAPABLE OF PRODUCING SOME WIND GUSTS TO 30 OR 40 MPH. PEOPLE IN THE WATCH AREA SHOULD EREMAIN ALERT FOR THREATENING WEATHER AND SHOULD REPORT SEVERE WEATHER TO THE LOCAL POLICE..SHERIFF..OR THE STATE POLICE FOR RELAY TO THE NATIONAL WEATHER SERVICE. DF
The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 1, 6:40 PM CDT | Severe Thunderstorm Warning | IND | Union | 30 min |
Nearby
Severe Thunderstorm Warnings in Indiana, 1986Every severe thunderstorm warning in 1986
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.