Alert archive / Indiana / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 13, NWS Northern Indiana

April 20, 2000LaGrange County, Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Apr 20, 2000, 1:02 PM EST for LaGrange County, Indiana. It was in force for 48 min. 1 report came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued: Apr 20, 2000, 1:02 PM EST (18:02 UTC)
Expired: Apr 20, 2000, 1:50 PM EST
In force: 48 min
Issued by: NWS Northern Indiana
Area: Whole counties; the outline is the Mesonet’s reconstruction

County LaGrange County, IN

The radar

The Northern Indiana radar (KIWX), 44 km from the middle of the area, began a volume at 18:01 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 20, 1:16 PM EST	Hail 0.75	Wolcottville, 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 20, 1:00 PM EST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 6.0 hours before the alert went out and 197 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: 574 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 277 m²/s²
0-3 km storm-relative helicity: 333 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 KIWX 201803
SVRFWA
INC087-201850-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
102 PM EST THU APR 20 2000

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LAGRANGE COUNTY IN INDIANA

* UNTIL 150 PM EST

* AT 101 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 8 MILES SOUTHWEST OF LAGRANGE...OR ABOUT 8
  MILES NORTHEAST OF LIGONIER...MOVING NORTHEAST AT 30 MPH.

* SOME LOCATIONS IN THE PATH OF THIS SEVERE THUNDERSTORM ARE...
  LAGRANGE
  TOPEKA
  EMMA
  MONGO

THIS IS A DANGEROUS STORM. SEEK SHELTER IMMEDIATELY!

GOLF BALL SIZE HAIL OR LARGER IS LIKELY WITH THIS SEVERE STORM! SEEK 
SHELTER IMMEDIATELY!

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

A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 PM EST FOR NORTHERN 
INDIANA.

LAT...LON 4159 8566 4144 8553 4172 8485 4193 8502



NNNN

The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 20, 3:58 AM EST	Severe Thunderstorm Warning	IWX	Pulaski	32 min
Apr 20, 4:54 AM EST	Severe Thunderstorm Warning	IWX	Marshall	46 min
Apr 20, 5:21 AM EST	Severe Thunderstorm Warning	IWX	Elkhart, Kosciusko	29 min
Apr 20, 10:53 AM EST	Tornado Warning	IWX	Pulaski, White	57 min
Apr 20, 11:08 AM EST	Tornado Warning	IWX	White	42 min
Apr 20, 11:20 AM EST	Tornado Warning	IWX	Cass, Fulton	60 min
Apr 20, 11:32 AM EST	Tornado Warning	IWX	LaPorte, Starke	48 min
Apr 20, 11:48 AM EST	Severe Thunderstorm Warning	IWX	Elkhart, Saint Joseph	42 min
Apr 20, 11:51 AM EST	Severe Thunderstorm Warning	IWX	Marshall	49 min
Apr 20, 11:56 AM EST	Tornado Warning	IWX	Kosciusko	44 min
Apr 20, 12:02 PM EST	Tornado Warning	IWX	Miami	48 min
Apr 20, 12:37 PM EST	Tornado Warning	IWX	Kosciusko	33 min
Apr 20, 12:44 PM EST	Severe Thunderstorm Warning	IWX	Noble, Whitley	46 min
Apr 20, 1:06 PM EST	Severe Thunderstorm Warning	IWX	DeKalb, Steuben	54 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2000 Every severe thunderstorm warning in 2000

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.