Alert archive / Indiana / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 17, NWS Indianapolis, IN

April 28, 20024 counties in Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Apr 28, 2002, 12:36 AM EST for 4 counties in 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 28, 2002, 12:36 AM EST (05:36 UTC)
Expired: Apr 28, 2002, 1:15 AM EST
In force: 39 min
Issued by: NWS Indianapolis, IN
Area: Counties, with a storm outline in the text

Counties Boone County, IN, Clinton County, IN, Hendricks County, IN, Morgan County, IN

The radar

The Indianapolis radar (KIND), 28 km from the middle of the area, began a volume at 05:35 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

Time	Report	Where	Remark
Apr 28, 1:03 AM EST	Hail 1.75	Avon, 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 watch it was issued in

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

Issued	Product	Office	Lasted
Apr 28, 12:00 AM EST	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 5.6 hours before the alert went out and 179 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: 1 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 439 m above ground
0-6 km bulk shear: 79 kt
0-1 km storm-relative helicity: 516 m²/s²
0-3 km storm-relative helicity: 567 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

423 
WUUS53 KIND 280536
SVRIND
INC011-023-063-109-280615-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1235 AM EST SUN APR 28 2002

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BOONE COUNTY IN CENTRAL INDIANA
  THIS INCLUDES THE CITY OF LEBANON
  SOUTH CENTRAL CLINTON COUNTY IN CENTRAL INDIANA
  HENDRICKS COUNTY IN CENTRAL INDIANA
  THIS INCLUDES THE CITIES OF...PLAINFIELD...DANVILLE...BROWNSBURG
  WESTERN MORGAN COUNTY IN CENTRAL INDIANA
  THIS INCLUDES THE CITIES OF...MOORESVILLE...MARTINSVILLE

* UNTIL 115 AM EST

* AT 1230 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 15 MILES WEST OF AMO...OR ABOUT 7 MILES NORTH
  OF GREENCASTLE...MOVING EAST AT 50 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  AMO AT 1245 AM EST
  DANVILLE AT 1250 AM EST
  PITTSBORO AT 1255 AM EST
  PLAINFIELD AT 100 AM 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.

HEAVY RAINS MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES. STAY AWAY FROM FLOODED AREAS.

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 4022 8666 3933 8665 3935 8640 4018 8632

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 27, 11:57 PM EST	Flash Flood Warning	IND	Clay, Parke, Vermillion, Vigo	3 min
Apr 27, 11:58 PM EST	Flash Flood Warning	IND	Clay, Parke, Vermillion, Vigo	62 min
Apr 28, 12:04 AM EST	Severe Thunderstorm Warning	IND	Clay, Parke, Vermillion, Vigo	26 min
Apr 28, 12:15 AM EST	Severe Thunderstorm Warning	IND	Montgomery, Putnam	45 min
Apr 28, 12:48 AM EST	Severe Thunderstorm Warning	IND	Hamilton, Johnson, Marion	42 min
Apr 28, 1:17 AM EST	Flash Flood Warning	IND	Daviess, Jackson, Jennings, Knox, Lawrence, Martin	3 hr
Apr 28, 1:17 AM EST	Flash Flood Warning	IND	Daviess, Jackson, Jennings, Knox, Lawrence, Martin	118 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.