Alert archive / Indiana / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 21, NWS Indianapolis, IN

April 4, 2003Jennings County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Apr 4, 2003, 10:45 PM EST for Jennings County, Indiana. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 4, 2003, 10:45 PM EST (03:45 UTC)
Expired: Apr 4, 2003, 11:30 PM EST
In force: 45 min
Issued by: NWS Indianapolis, IN
Area: Counties, with a storm outline in the text

County Jennings County, IN

The radar

The Indianapolis radar (KIND), 94 km from the middle of the area, began a volume at 03:45 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 4, 7:30 PM EST	Tornado Watch	SPC	6 hr
Apr 4, 10:20 PM EST	Tornado Watch	SPC	5 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 3.8 hours before the alert went out and 169 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 628 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 1237 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 160 m²/s²
0-3 km storm-relative helicity: 223 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 4.2

Open this sounding in Storm Lab

The text

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

517 
WUUS53 KIND 050345
SVRIND
INC079-050430-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
ISSUED BY NWS LOUISVILLE KY
1045 PM EST FRI APR 4 2003

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  JENNINGS COUNTY IN SOUTHEAST INDIANA

* UNTIL 1130 PM EST

* AT 1045 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 11 MILES SOUTHWEST OF NORTH VERNON...OR ABOUT 4
  MILES SOUTHEAST OF SEYMOUR...MOVING EAST AT 55 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  VERNON...NORTH VERNON AROUND 1055 PM EST

THIS IS A DANGEROUS STORM...CAPABLE OF PRODUCING VERY DAMAGING WINDS.
IF YOU ARE IN THIS STORMS PATH...TAKE COVER IMMEDIATELY IN A STURDY
STRUCTURE UNTIL IT HAS PASSED. STAY AWAY FROM WINDOWS AND ANY DOWNED
POWER LINES.

A TORNADO WATCH IS ALSO IN EFFECT. REMEMBER...SEVERE THUNDERSTORMS
CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE NOTICE.

LAT...LON 3905 8583 3881 8581 3894 8546 3917 8547

$$
JMB

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 4, 8:55 PM EST	Severe Thunderstorm Warning	IND	Knox, Sullivan	35 min
Apr 4, 9:02 PM EST	Severe Thunderstorm Warning	IND	Howard, Vigo	28 min
Apr 4, 9:32 PM EST	Severe Thunderstorm Warning	IND	Daviess, Greene	43 min
Apr 4, 9:44 PM EST	Severe Thunderstorm Warning	IND	Martin	36 min
Apr 4, 9:56 PM EST	Severe Thunderstorm Warning	IND	Delaware, Madison	49 min
Apr 4, 9:57 PM EST	Severe Thunderstorm Warning	IND	Lawrence	43 min
Apr 4, 10:07 PM EST	Severe Thunderstorm Warning	IND	Randolph	53 min
Apr 4, 10:13 PM EST	Severe Thunderstorm Warning	IND	Henry	47 min
Apr 4, 10:18 PM EST	Severe Thunderstorm Warning	IND	Jackson	42 min
Apr 4, 10:32 PM EST	Severe Thunderstorm Warning	IND	Rush, Shelby	43 min
Apr 4, 10:39 PM EST	Severe Thunderstorm Warning	IND	Bartholomew, Decatur	36 min
Apr 4, 10:43 PM EST	Severe Thunderstorm Warning	IND	Lawrence	32 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2003 Every severe thunderstorm warning in 2003

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; radar from the NEXRAD Level II archive.