Alert archive / Indiana / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 21, NWS Indianapolis, IN

May 1, 2002Greene County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at May 1, 2002, 5:36 PM EST for Greene County, Indiana. It was in force for 24 min. 3 reports 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: May 1, 2002, 5:36 PM EST (22:36 UTC)
Expired: May 1, 2002, 6:00 PM EST
In force: 24 min
Issued by: NWS Indianapolis, IN
Area: Counties, with a storm outline in the text

County Greene County, IN

The radar

The Indianapolis radar (KIND), 95 km from the middle of the area, began a volume at 22:40 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
May 1, 5:50 PM EST	Hail 0.75	Linton, IN
May 1, 5:56 PM EST	Hail 1.5	Bloomfield, IN
May 1, 5:59 PM EST	Hail 1	Bloomfield, 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
May 1, 12:45 PM EST	Severe Thunderstorm Watch	SPC	5 hr
May 1, 2:30 PM EST	Tornado Watch	SPC	4 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.6 hours before the alert went out and 192 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1126 m above ground
0-6 km bulk shear: 72 kt
0-1 km storm-relative helicity: 207 m²/s²
0-3 km storm-relative helicity: 327 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KIND 012236
SVRIND
INC055-012300-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
536 PM EST WED MAY 1 2002

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  GREENE COUNTY IN SOUTHWEST INDIANA

* UNTIL 600 PM EST

* AT 536 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER LINTON...OR ABOUT 30 MILES SOUTH OF TERRE
  HAUTE...MOVING EAST AT 60 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  SWITZ CITY AT 545 PM EST
  BLOOMFIELD AT 550 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.

A TORNADO WATCH IS IN EFFECT. SEVERE THUNDERSTORMS CAN PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING. PREPARE TO MOVE TO A
BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED.

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 3891 8669 3892 8726 3916 8726 3915 8669

JEZ/DRT

The office that day

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

Issued	Product	Office	Counties	Lasted
May 1, 3:17 PM EST	Tornado Warning	IND	Knox	28 min
May 1, 3:47 PM EST	Severe Thunderstorm Warning	IND	Daviess, Knox	28 min
May 1, 5:21 PM EST	Severe Thunderstorm Warning	IND	Sullivan	24 min
May 1, 5:35 PM EST	Flash Flood Warning	IND	Greene, Sullivan	55 min
May 1, 5:36 PM EST	Flash Flood Warning	IND	Greene, Sullivan	114 min
May 1, 5:51 PM EST	Severe Thunderstorm Warning	IND	Daviess, Knox, Martin	24 min
May 1, 5:57 PM EST	Severe Thunderstorm Warning	IND	Greene, Lawrence	33 min
May 1, 6:13 PM EST	Severe Thunderstorm Warning	IND	Martin	17 min
May 1, 6:21 PM EST	Flash Flood Warning	IND	Lawrence	54 min
May 1, 6:21 PM EST	Flash Flood Warning	IND	Lawrence	114 min
May 1, 6:25 PM EST	Tornado Warning	IND	Lawrence	35 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.