Alert archive / Indiana / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 137, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 25, 1986, 7:15 PM EST for Marion County, Indiana. It was in force for 35 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
- Jul 25, 1986, 7:15 PM EST (00:15 UTC)
- Expired
- Jul 25, 1986, 7:50 PM EST
- In force
- 35 min
- Issued by
- NWS Indianapolis, IN
- Area
- Whole counties
County Marion 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 25, 7:35 PM EST | Thunderstorm Wind 0 | Marion, 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 00:00Z, 0.3 hours before the alert went out and 166 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
- 1184 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 1585 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 132 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KIND 260015 SVRIND INC097-260050- BULLETIN...IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE INDIANAPOLIS IN 715 PM EST FRI JUL 25 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 750 PM EST FOR PEOPLE IN .....MARION COUNTY....OF CENTRAL INDIANA. AT 710 PM EST LARGE TREES WERE UPROOTED IN DANVILLE IN HENDRICKS COUNTY REPORTED BY COUNTY SHERIFF. THIS STORM WAS MOVING EAST AT 25 MILES AN HOUR AND WILL MOVE INTO INDIANAPOLIS. REMEMBER A SEVERE THUNDERSTORM PRODUCES DAMAGING WINDS IN EXCESS OF 60 MILES AN HOUR..LARGE HAIL..FREQUENT LIGHTNING..AND POSSIBLE HEAVY RAIN THAT CAN QUICKLY FLOOD LOW AREAS. REPORT SEVERE WEAT;HER TO THE POLICE..SHERIFF..OR STATE POLICE FOR RELAY TO THE NATIONAL WEATHER SERVICE. GERY
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 25, 3:51 PM EST, 3 hours 24 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 349 PM EST FRI JUL 25 1986 A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR A LARGE PART OF NORTHERN AND CENTRAL INDIANA UNTIL 10 PM EST. THE WEATHER SERVICE OFFICE IN SOUTH BEND ISSUED A SEVERE THUNDERSTORM WARNING UNTIL 415 FOR A STORM MOVING THROUGH ELKHART COUNTY IN EXTREME NORTHERN INDIANA. ANOTHER STRONG THUNDERSTORM WAS NEAR KNOX...ABOUT 30 MILES SOUTHEAST OF SOUTH BEND. THE STORMS WERE MOVING EAST AT 15 MPH. THE THUNDERSTORMS WERE DEVELOPING AS A COOL FRONT FROM LOWER MICHIGAN TO NORTHWEST INDIANA TO CENTRAL ILLINOIS PUSHED SOUTHEASTWARD INTO THE HOT HUMID AIRMASS WHICH COVERED MUCH OF INDIANA. THUNDERSTORMS WILL CONTINUE TO DEVELOP AND MOVE EAST ALONG THE FRONT WHILE THE FRONT DRIFTS SOUTH THROUGH THE HOOSIER STATE. BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS. STAY TUNED TO THIS SOURCE FOR LATER STATEMENTS AND POSSIBLE WARNINGS. USE COMMON SENSE WHIL]E OUTDOORS THIS AFTERNOON AND EVENING. ALLSOPP
Special weather statement, Jul 25, 4:47 PM EST, 2 hours 28 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 446 PM EST FRI JUL 25 1986 A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT FOR A LARGE PART OF NORTHERN AND CENTRAL INDIANA UNTIL 10 PM EST. AT 440 PM EST RADAR SHOWED SHOWERS AND THUNDERSTORMS DEVELOPING RAPIDLY OVER WEST CENTRAL AND CENTRAL INDIANA. THE LEADING EDGE OF THE STORMS WAS FROM FORT WAYNE THROUGH GRISSOM AIR FORCE BASE TO ABOUT 10 MILES NORTH OF TERRE HAUTE. THE STRONGEST STORM WAS ABOUT 10 MILES NORTHWEST OF KOKOMO. THIS STORM WILL PRODUCE VERY HEAVY RAINS AND STRONG GUSTY WINDS AS IT MOVES ACROSS HOWARD COUNTY AND SOUTHERN MIAMI COUNTY BETWEEN GRISSOM AIR FORCE BASE AND KOKOMO. OTHER THUNDERSTORMS WERE NEAR WINAMAC..ROCHESTER...BROOKSTON AND MONTICELLO. ALL OF THE STORMS WERE MOVING EAST AT 20 TO 25 MILES AN HOUR. BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS. STAY TUNED TO THIS SOURCE FOR LATER STATEMENTS AND POSSIBLE WARNINGS. GERY
Special weather statement, Jul 25, 6:43 PM EST, 32 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 642 PM EST FRI JUL 25 1986 THE SEVERE THUNDERSTORM WATCH FOR A LARGE PART OF NORTHERN INDIANA IS NO LONGER IN EFFECT NORTH OF A LINE FROM AUBURN IN DEKALB COUNTY TO FOWLER IN BENTON COUNTY. THE LINE OF STRONG THUNDERSTORMS IN NORTHERN INDIANA WAS SOUTH OF A LINE FROM AUBURN TO FOWLER. THE LINE OF STRONG STORMS WERE MOVING SOUTHEAST AT 25 MILES AN HOUR AND MOVING INTO THE MID-SECTION OF THE STATE. A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT FOR A LARGE PART OF CENTRAL INDIANA UNTIL 10 PM EST. VAN ETTEN
The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 7:00 PM EST | Severe Thunderstorm Warning | IND | Hamilton | 45 min |
| Jul 25, 7:40 PM EST | Severe Thunderstorm Warning | IND | Clay | 30 min |
| Jul 25, 7:40 PM EST | Severe Thunderstorm Warning | IND | Madison | 35 min |
| Jul 25, 8:10 PM EST | Severe Thunderstorm Warning | IND | Randolph | 35 min |
| Jul 25, 8:14 PM EST | Severe Thunderstorm Warning | IND | Vigo | 41 min |
| Jul 25, 8:15 PM EST | Flash Flood Warning | IND | Clay, Owen | 3 hr |
| Jul 25, 8:19 PM EST | Severe Thunderstorm Warning | IND | Clay | 36 min |
| Jul 25, 8:28 PM EST | Severe Thunderstorm Warning | IND | Owen | 37 min |
| Jul 25, 9:40 PM EST | Severe Thunderstorm Warning | IND | Owen | 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.