Alert archive / Indiana / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 94, NWS Indianapolis, IN

June 30, 1986Clay County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jun 30, 1986, 3:30 PM EST for Clay County, Indiana. It was in force for 45 min.

The area

The counties it named.

The facts

Issued
Jun 30, 1986, 3:30 PM EST (20:30 UTC)
Expired
Jun 30, 1986, 4:15 PM EST
In force
45 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

County Clay County, IN

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Salem-Leckrone, IL (KSLO), launched 12:00Z, 8.5 hours before the alert went out and 175 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.

Skew-T log-pSkew-T log-p diagram, Salem-Leckrone, IL at 12:00Z on 1986-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1370 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Salem-Leckrone, IL at 12:00Z on 1986-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 92 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1370 J/kg
Mixed-layer CIN
-51 J/kg
Mixed-layer LCL
1253 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
92 m²/s²
0-3 km storm-relative helicity
85 m²/s²
Significant tornado parameter
0.4
Supercell composite
3.5

Open this sounding in Storm Lab

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, Jun 30, 1:59 PM EST, 1 hour 31 minutes before
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
200 PM EST MON JUN 30 1986

THE SEVERE THUNDERSTORM WARNING FOR JACKSON COUNTY EXPIRED AT 200 PM EST

ONE HALF TO ONE AND ONE HALF INCH HAIL WAS REPORTED AT MILLPORT WHICH IS
10 MILES SOUTH OF BROWNSTOWN. AT 145PM EST...THE THUNDERSTORM WAS IN
NORTHEAST WASHINGTON COUNTY MOVING SOUTHEAST.

OTHER THUNDERSTORMS WERE IN SOUTHERN INDIANA FROM WASHINGTON TO BEDFORD
...FRENCH LICK AND SEYMOUR.

IN THE NORTHWEST...THUNDERSTORMS WERE FROM THE INDIANA STATE LINE AT
DANVILLE ILLINOIS TO WILLIAMSPORT AND LAFAYETTE INDIANA.

STILL MORE THUNDERSTORMS WERE EAST OF INDIANAPOLIS FROM GREENFIELD TO
CONNERSVILLE.

KENYON
AND 1000PM.

AsLL THE PRECIPITATION WAS MOVING A LITTLE SOUTH OF EAST AT 35
MPH.

SOME HEAVY THUNDERSTROMS WILL CONTINUE TO MOVE THROUGH CENTRAL
INDIANA THIS EVENING BUT NO SEVERE WEATHER IS EXPECTED.

HAINES
Local storm report, Jun 30, 2:20 PM EST, 1 hour 10 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
220 PM EST MON JUNE 30 1986

140 PM EST   1 1/2 INCH DIAMETER HAIL REPORETED BY COOPERATIVE
             NATIONAL WEATHER SERVICE OVSERVER AT MILLPORT INDIANA
             WHICH IS 10 MILES SOUTH OF BROWNSTOWN..45 MILES NORTH-
             WEST OF LOUSIVILLE KY.

CURRAN

The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 30, 1:27 PM ESTSevere Thunderstorm WarningINDJackson33 min
Jun 30, 3:25 PM ESTSevere Thunderstorm WarningINDPutnam35 min
Jun 30, 3:52 PM ESTSevere Thunderstorm WarningINDGreene68 min
Jun 30, 4:55 PM ESTSevere Thunderstorm WarningINDMonroe60 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; the sounding from the Mesonet's radiosonde archive.