Alert archive / Indiana / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 41, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at May 7, 1986, 4:18 PM EST for Boone County, Montgomery County, Indiana. It was in force for 42 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
- May 7, 1986, 4:18 PM EST (21:18 UTC)
- Expired
- May 7, 1986, 5:00 PM EST
- In force
- 42 min
- Issued by
- NWS Indianapolis, IN
- Area
- Whole counties
Counties Boone County, IN, Montgomery 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 |
|---|---|---|---|
| May 7, 4:25 PM EST | Thunderstorm Wind 0 | Montgomery, IN | |
| May 7, 4:45 PM EST | Thunderstorm Wind 0 | Montgomery, 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
Dayton/James M C, OH (KDAY), launched 12:00Z, 9.3 hours before the alert went out and 212 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
- 803 J/kg
- Mixed-layer CIN
- -72 J/kg
- Mixed-layer LCL
- 896 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 69 m²/s²
- 0-3 km storm-relative helicity
- 100 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 072119 SVRIND INC107-011-072200- BULLETIN...IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE INDIANAPOLIS IN 418 PM EST WED MAY 7 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 500 PM EST FOR PERSONS IN NORTHERN MONTGOMMERY AND WESTERN BOONE COUNTIES OF WEST CENTRAL INDIANA. AT 415 PM A SEVERE THUNDERSTORM WAS 20 MILES SOUTHWEST OF LAFAYETTE MOVING SOUTHEAST AT 25 MPH. THIS STORM IS CAPABLE OF PRODUCING LARGE HAIL...DAMAGING WINDS...DANGEROUS LIGHTNING AND HEAVY RAIN. PEOPLE IN THE PATH OF THIS STORM SHOULD SEEK SHELTER IMMEDIATELY. REPORT SEVERE WEATHER TO THE POLICE..SHERIFF..OR STATE POLICE FOR RELAY TO THE N!ATIONAL WEATHER SERVICE. ALLSOPP
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 7, 3:33 PM EST, 45 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 332 PM EST WED MAY 7 1986 THE LOCAL POLICE HAS RELAYED A REPORT OF MARBLE SIZE HAIL AND VERY BLINDING RAIN IN FRANKFORT INDIANA IN CLINTON COUNTY AT 328 PM EST. WEATHER RADAR INDICATES THIS STORM SHOULD MOVE EAST AT 30 MPH AND MOVE NORTH OF KIRKLIN INDIANA WHICH IS ABOUT 30 MILES NORTH OF INDIANAPOLIS BETWEEN 335PM AND 350 PM EST. OTHER VERY STRONG STORMS CAPABLE OF PRODUCING HAIL AND GUSTY WINDS WERE ABOUT 8 MILES SOUTHEAST OF LAFAYATTE AND THEN SCATTERED WEST SOUTHWEST TO ABOUT 25 MILES NORTH OF TERRE HAUTE. EDWARDS
The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 7:22 PM EST | Severe Thunderstorm Warning | IND | Tippecanoe, White | 28 min |
| May 6, 8:05 PM EST | Severe Thunderstorm Warning | IND | Vermillion, Warren | 30 min |
| May 6, 8:10 PM EST | Severe Thunderstorm Warning | IND | Fountain | 30 min |
| May 6, 8:55 PM EST | Severe Thunderstorm Warning | IND | Hendricks | 30 min |
| May 6, 9:00 PM EST | Severe Thunderstorm Warning | IND | Boone | 30 min |
| May 6, 9:19 PM EST | Severe Thunderstorm Warning | IND | Marion | 26 min |
| May 6, 9:25 PM EST | Severe Thunderstorm Warning | IND | Hancock, Shelby | 30 min |
| May 6, 9:25 PM EST | Severe Thunderstorm Warning | IND | Johnson | 30 min |
| May 6, 10:04 PM EST | Severe Thunderstorm Warning | IND | Hancock | 21 min |
| May 6, 10:13 PM EST | Severe Thunderstorm Warning | IND | Henry, Rush | 32 min |
| May 6, 10:23 PM EST | Severe Thunderstorm Warning | IND | Fayette | 32 min |
| May 6, 10:27 PM EST | Severe Thunderstorm Warning | IND | Wayne | 33 min |
| May 7, 2:55 PM EST | Severe Thunderstorm Warning | IND | Decatur | 25 min |
| May 7, 3:45 PM EST | Severe Thunderstorm Warning | IND | Tippecanoe | 45 min |
| May 7, 4:33 PM EST | Severe Thunderstorm Warning | IND | Parke | 42 min |
| May 7, 5:00 PM EST | Severe Thunderstorm Warning | IND | Hendricks, Marion | 45 min |
| May 7, 5:18 PM EST | Severe Thunderstorm Warning | IND | Johnson | 42 min |
| May 7, 5:30 PM EST | Tornado Warning | IND | Johnson, Marion | 30 min |
| May 7, 6:05 PM EST | Severe Thunderstorm Warning | IND | Shelby | 25 min |
| May 7, 6:10 PM EST | Tornado Warning | IND | Rush | 35 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.