Alert archive / Indiana / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 3, NWS Indianapolis, IN

April 12, 2002Vermillion County, Warren County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Apr 12, 2002, 3:05 PM EST for Vermillion County, Warren County, Indiana. It was in force for 40 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 12, 2002, 3:05 PM EST (20:05 UTC)
Expired: Apr 12, 2002, 3:45 PM EST
In force: 40 min
Issued by: NWS Indianapolis, IN
Area: Counties, with a storm outline in the text

Counties Vermillion County, IN, Warren County, IN

The radar

The Indianapolis radar (KIND), 123 km from the middle of the area, began a volume at 20:05 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 nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 8.1 hours before the alert went out and 93 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: 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 122005
SVRIND
INC165-171-122045-

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

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN VERMILLION COUNTY IN WEST CENTRAL INDIANA
  WARREN COUNTY IN WEST CENTRAL INDIANA

* UNTIL 345 PM EST

* AT 300 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER STATE LINE CITY...OR ABOUT 4 MILES
  NORTHEAST OF DANVILLE...MOVING NORTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  WEST LEBANON AT 330 PM EST
  WILLIAMSPORT AT 340 PM EST

HAIL UP TO ONE INCH WAS REPORTED IN ILLINOIS WITH THIS STORM.

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 4019 8772 4007 8754 4042 8712 4048 8749

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 12, 3:17 PM EST	Severe Thunderstorm Warning	IND	Clay, Greene, Owen	43 min
Apr 12, 4:31 PM EST	Flash Flood Warning	IND	Fountain, Vermillion, Warren	59 min
Apr 12, 4:38 PM EST	Flash Flood Warning	IND	Fountain, Vermillion, Warren	112 min
Apr 12, 4:43 PM EST	Severe Thunderstorm Warning	IND	Monroe, Morgan	32 min
Apr 12, 4:51 PM EST	Severe Thunderstorm Warning	IND	Clinton, Tippecanoe	39 min
Apr 12, 5:01 PM EST	Severe Thunderstorm Warning	IND	Brown	29 min
Apr 12, 5:32 PM EST	Severe Thunderstorm Warning	IND	Bartholomew, Brown, Johnson	43 min
Apr 12, 5:38 PM EST	Flash Flood Warning	IND	Bartholomew, Brown, Greene, Johnson, Monroe, Morgan and 2 more	67 min
Apr 12, 5:41 PM EST	Flash Flood Warning	IND	Bartholomew, Brown, Greene, Johnson, Monroe, Morgan and 2 more	2 hr
Apr 12, 5:45 PM EST	Severe Thunderstorm Warning	IND	Bartholomew, Shelby	30 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2002 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.