Alert archive / Indiana / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 100, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 8, 1986, 4:50 PM EST for Johnson County, Marion County, Indiana. It was in force for 25 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 8, 1986, 4:50 PM EST (21:50 UTC)
- Expired
- Jul 8, 1986, 5:15 PM EST
- In force
- 25 min
- Issued by
- NWS Indianapolis, IN
- Area
- Whole counties
Counties Johnson County, IN, 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 8, 4:52 PM EST | Thunderstorm Wind 63 | 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 12:00Z, 9.8 hours before the alert went out and 167 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
- 1082 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 1069 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 62 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 8, 2:54 PM EST, 1 hour 56 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE INDIANAPOLIS IN 250 PM EST TUE JUL 8 1986 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 9 PM EST FOR MOST OF THE NORTH HALF OF INDIANA... AT 240 PM EST ISOLATED VERY STRONG THUNDERSTORMS WERE DEVELOPING OVER PARTS OF WEST CENTRAL INDIANA. THE STRONGEST THUNDERSTORMS WERE JUST NORTHEAST OF TERRE HAUTE OVER PARKE COUNTY AND WESTERN PUTNAM COUNTY. ISOLATED THUNDERSTORMS WERE DEVELOPING OVER THE INDIANAPOLIS METRO AREA. A REPORT WAS RECEIVED THAT TREE DAMAGE HAD OCCURRED JUST AFTER 230 ON THE NORTHEAST SIDE OF INDIANAPOLIS. THESE THUNDERSTORMS LIKELY CONTAIN HEAVY DOWNPOURS AND MAY ALSO BE ACCOMPANIED BY HAIL AND SPTRONG WINDS. MOVEMENT OF THESE STORMS WAS TOWARD THE EAST NORTHEAST AT 20 TO 25 MPH. OTHER ISOLATED THUNDERSHOWERS WERE OVER SOUTHERN TIPTON COUNTY AND OVER MONROE COUNTY NEAR BLOOMINGTON. YESS
Special weather statement, Jul 8, 3:47 PM EST, 1 hour 3 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 350 PM EST TUE JUL 8 1986 A SEVERE THUNDERSTORM WARNING IS IN EFFECT UNTIL 4 PM EST FOR NORTH JOHNSON AND SHELBY COUNTY IN CENTRAL INDIANA. RADAR AT 340 PM EST SHOWED THE SEVERE THUNDERSTORM THAT PRODUCED 70 MPH WINDS AT SOUTHPORT HAS MOVED OVER THE NORTHWEST PART OF SHELBY COUNTY AND WILL BE MOVING ACROSS THE REMAINDER OF THE NORTH HALF OF SHELBY COUNTY BETWEEN NOW AND 415 PM EST. NO SEVERE WEATHER HAS BEEN REPORTED TO THE NATIONAL WEATHER SERVICE SINCE 320 PM EST. OTHER STRONG THUDERSTORMS AT 345 PM EST WERE MOVING THROUGH NEWTON COUNTY TOWARDS RENNSELAER...35 MILES NORTHWEST OF LAFAYETTE...AND THROUGH SOUTHERN HENDzRICKS COUNTY 20 MILES SOUTHWEST OF INDIANAPOLIS. IF THREATENING WEATHER APPROACHES...SEEK SHELTER IMMEDIATELY. CURRAN
The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 3:20 PM EST | Severe Thunderstorm Warning | IND | Johnson, Shelby | 40 min |
| Jul 8, 5:05 PM EST | Severe Thunderstorm Warning | IND | Hancock, Shelby | 35 min |
| Jul 8, 5:24 PM EST | Severe Thunderstorm Warning | IND | Johnson | 41 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.