Alert archive / Indiana / Tornado Warnings in 1986

Tornado Warning 1, NWS Indianapolis, IN

March 10, 1986Gibson County, Indiana

NWS Indianapolis, IN issued this tornado warning at Mar 10, 1986, 1:00 PM CST for Gibson County, Indiana. It was in force for 20 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
Mar 10, 1986, 1:00 PM CST (19:00 UTC)
Expired
Mar 10, 1986, 1:20 PM CST
In force
20 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

County Gibson 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

TimeReportWhereRemark
Mar 10, 1:16 PM CSTThunderstorm Wind 0Gibson, 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

Salem-Leckrone, IL (KSLO), launched 12:00Z, 7.0 hours before the alert went out and 120 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 1986-03-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Salem-Leckrone, IL at 12:00Z on 1986-03-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 194 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
NaN m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
194 m²/s²
0-3 km storm-relative helicity
208 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KEVV 101900
TOREVV
INC051-101920-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EVANSVILLE IN
100 PM CST MON MAR 10 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 120 PM CST FOR PEOPLE IN THE FOLLOWING COUNTY OF


SOUTHWEST INDIANA...GIBSON

AT 1255 PM CST RADAR INDICATED A POSSIBLE TORNADO NEAR THE
OHIO RIVER 25 MILES NORTHWEST OF EVANSVILLE IN GIBSON COUNTY.
IT WAS MOVING NORTHEAST AT 30 MPH TOWARD OWENSVILLE INDIANA.

IF THREATENING WEATHER APPROACHES GO TO A SAFE PLACE IMMEDIATELY.
TO REPORT SEVERE WEATHER CONTACT THE NEAREST LAW ENFORCEMENT AGENCY
AND ASK THEM TO RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE.

BLOCK

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 10, 12:48 PM CSTSevere Thunderstorm WarningINDParke, Vermillion32 min
Mar 10, 1:00 PM CSTSevere Thunderstorm WarningINDOwen30 min
Mar 10, 1:20 PM CSTSevere Thunderstorm WarningINDMorgan25 min
Mar 10, 1:30 PM CSTSevere Thunderstorm WarningINDHendricks, Marion30 min
Mar 10, 1:45 PM CSTTornado WarningINDJohnson, Marion30 min
Mar 10, 1:46 PM CSTSevere Thunderstorm WarningINDSpencer24 min
Mar 10, 2:00 PM CSTTornado WarningINDBrown, Johnson25 min
Mar 10, 2:05 PM CSTTornado WarningINDHancock, Shelby25 min
Mar 10, 2:15 PM CSTTornado WarningINDHenry30 min
Mar 10, 2:15 PM CSTTornado WarningINDShelby30 min
Mar 10, 2:20 PM CSTTornado WarningINDRush30 min
Mar 10, 2:40 PM CSTSevere Thunderstorm WarningINDDecatur30 min
Mar 10, 2:45 PM CSTSevere Thunderstorm WarningINDRandolph, Wayne35 min
Mar 10, 3:08 PM CSTSevere Thunderstorm WarningINDUnion27 min
Mar 10, 4:10 PM CSTSevere Thunderstorm WarningINDBartholomew20 min
Mar 10, 4:23 PM CSTSevere Thunderstorm WarningINDDecatur, Rush27 min

Nearby

Tornado Warnings in Indiana, 1986Every tornado warning in 1986Tornadoes 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.