Alert archive / Indiana / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 155, NWS Indianapolis, IN

September 26, 1986Monroe County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Sep 26, 1986, 2:30 PM EST for Monroe County, Indiana. It was in force for 30 min.

The area

The counties it named.

The facts

Issued
Sep 26, 1986, 2:30 PM EST (19:30 UTC)
Expired
Sep 26, 1986, 3:00 PM EST
In force
30 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

County Monroe 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, 7.5 hours before the alert went out and 213 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 1986-09-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1459 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 1986-09-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 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
1459 J/kg
Mixed-layer CIN
-78 J/kg
Mixed-layer LCL
1013 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
70 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

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, Sep 26, 2:04 PM EST, 26 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
200 PM EST FRI SEP 26 1986

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR MOST OF NORTHERN INDIANA
UNTIL 800PM EST.

SHORTLY BEFORE 2PM EST A CLUSTER OF STRONG THUNDERSTORMS WAS LOCATED
WEST AND SOUTHWEST OF LAFAYETTE AND MOVING TOWARDS LAFAYETTE.
OTHER STRONG THUNDERSTORMS WERE NEAR RENSSELAER. THE STATE POLICE
ESTIMATED WINDS OF 50 MPH 7 MILES NORTHWEST OF RENSSELAER AT 154PM EST.

PERSONS IN NORTHERN INDIANA SHOULD BE PREPARED TO SEEK SHELTER QUICKLY
IF THREATENING CONDITIONS ARE SIGHTED.
EDWARDS

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 26, 2:40 PM ESTSevere Thunderstorm WarningINDCarroll, Cass35 min
Sep 26, 2:48 PM ESTSevere Thunderstorm WarningINDElkhart, Saint Joseph52 min
Sep 26, 3:41 PM ESTSevere Thunderstorm WarningINDHoward, Miami34 min
Sep 26, 4:45 PM ESTSevere Thunderstorm WarningINDHenry, Randolph30 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.