Alert archive / Indiana / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 4, NWS Indianapolis, IN

April 10, 1992Knox County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Apr 10, 1992, 10:18 AM EST for Knox County, Indiana. It was in force for 45 min.

The area

The counties it named.

The facts

Issued
Apr 10, 1992, 10:18 AM EST (15:18 UTC)
Expired
Apr 10, 1992, 11:03 AM EST
In force
45 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

County Knox County, IN

The nearest sounding before it

Paducah/Barkley, KY (KPAH), launched 12:00Z, 3.3 hours before the alert went out and 212 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, Paducah/Barkley, KY at 12:00Z on 1992-04-10Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Paducah/Barkley, KY at 12:00Z on 1992-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 135 square meters per square second.1939Sfc1 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
0 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
135 m²/s²
0-3 km storm-relative helicity
145 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KEVV 101518
SVREVV
ILC101-INC083-101615-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EVANSVILLE IN
1018 AM CDT (1018 AM EST) FRI APR 10 1992
 
THE NATIONAL WEATHER SERVICE IN EVANSVILLE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1115 AM CDT (1115 AM EST)
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHEAST ILLINOIS
 
   ...LAWRENCE COUNTY
 
 
IN SOUTHWEST INDIANA
 
   ...KNOX COUNTY
 
AT 1010 AM CDT RADAR INDICATED A SEVERE THUNDERSTORM IN SOUTHEAST
ILLINOIS IN LAWRENCEVILLE ILLINOIS THIS THUNDERSTORM WAS MOVING TO THE
NORTHEAST AND SHOULD REACH BICKNELL INDIANA BY 1030 AM CDT. IF YOU ARE
IN THE PATH OF THESE SEVERE THUNDERSTORMS MOVE INDOOR IMMEDIATELY.
 
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD` NOT DRIVE INTO LOW WATER CROSSINGS.
NIEMEIER

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, Apr 10, 4:38 AM EST, 5 hours 40 minutes before
INDIANA SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
440 AM EST FRI APR 10 1992

ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE OVER NORTHERN INDIANA TONIGHT.

JEH

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 10, 3:36 PM ESTSevere Thunderstorm WarningINDHenry34 min

Nearby

Severe Thunderstorm Warnings in Indiana, 1992Every severe thunderstorm warning in 1992

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.