Alert archive / Indiana / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 6, NWS Indianapolis, IN

April 12, 2002Clinton County, Tippecanoe County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Apr 12, 2002, 4:51 PM EST for Clinton County, Tippecanoe County, Indiana. It was in force for 39 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Apr 12, 2002, 4:51 PM EST (21:51 UTC)
Expired
Apr 12, 2002, 5:30 PM EST
In force
39 min
Issued by
NWS Indianapolis, IN
Area
Counties, with a storm outline in the text

Counties Clinton County, IN, Tippecanoe County, IN

The radar

The Indianapolis radar (KIND), 82 km from the middle of the area, began a volume at 21:51 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.

What was reported inside it

TimeReportWhereRemark
Apr 12, 5:00 PM ESTHail 1Dayton, 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.

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 9.9 hours before the alert went out and 153 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, Lincoln, IL at 12:00Z on 2002-04-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 215 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, Lincoln, IL at 12:00Z on 2002-04-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 122 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
215 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
1073 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
122 m²/s²
0-3 km storm-relative helicity
97 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KIND 122151
SVRIND
INC023-157-122230-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
451 PM EST FRI APR 12 2002

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN CLINTON COUNTY IN CENTRAL INDIANA
  SOUTHEASTERN TIPPECANOE COUNTY IN WEST CENTRAL INDIANA

* UNTIL 530 PM EST

* AT 446 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 11 MILES SOUTHWEST OF DAYTON...OR ABOUT 12
  MILES SOUTH OF LAFAYETTE...MOVING NORTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  DAYTON AT 510 PM EST
  MULBERRY AT 520 PM EST
  ROSSVILLE AT 530 PM EST

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND...DESTRUCTIVE HAIL...
DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO
AN INTERIOR ROOM ON THE LOWEST FLOOR.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN INDIANAPOLIS.

LAT...LON 4025 8704 4022 8678 4042 8648 4045 8673

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 12, 3:05 PM ESTSevere Thunderstorm WarningINDVermillion, Warren40 min
Apr 12, 3:17 PM ESTSevere Thunderstorm WarningINDClay, Greene, Owen43 min
Apr 12, 4:31 PM ESTFlash Flood WarningINDFountain, Vermillion, Warren59 min
Apr 12, 4:38 PM ESTFlash Flood WarningINDFountain, Vermillion, Warren112 min
Apr 12, 4:43 PM ESTSevere Thunderstorm WarningINDMonroe, Morgan32 min
Apr 12, 5:01 PM ESTSevere Thunderstorm WarningINDBrown29 min
Apr 12, 5:32 PM ESTSevere Thunderstorm WarningINDBartholomew, Brown, Johnson43 min
Apr 12, 5:38 PM ESTFlash Flood WarningINDBartholomew, Brown, Greene, Johnson, Monroe, Morgan and 2 more67 min
Apr 12, 5:41 PM ESTFlash Flood WarningINDBartholomew, Brown, Greene, Johnson, Monroe, Morgan and 2 more2 hr
Apr 12, 5:45 PM ESTSevere Thunderstorm WarningINDBartholomew, Shelby30 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2002Every severe thunderstorm warning in 2002

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; radar from the NEXRAD Level II archive.