Alert archive / Indiana / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 7, NWS Indianapolis, IN

April 6, 2001Hendricks County, Morgan County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Apr 6, 2001, 4:21 PM EST for Hendricks County, Morgan County, Indiana. It was in force for 24 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 6, 2001, 4:21 PM EST (21:21 UTC)
Expired: Apr 6, 2001, 4:45 PM EST
In force: 24 min
Issued by: NWS Indianapolis, IN
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Hendricks County, IN, Morgan County, IN

The radar

The Indianapolis radar (KIND), 24 km from the middle of the area, began a volume at 21:23 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 6, 4:40 PM EST	Hail 1.75	Little Pt, 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 6, 12:15 PM EST	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 9.4 hours before the alert went out and 184 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: 903 J/kg
Mixed-layer CIN: -37 J/kg
Mixed-layer LCL: 687 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 154 m²/s²
0-3 km storm-relative helicity: 151 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 3.4

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KIND 062122
SVRIND
INC063-109-062145-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
421 PM EST FRI APR 6 2001

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN HENDRICKS COUNTY IN CENTRAL INDIANA
  MORGAN COUNTY IN CENTRAL INDIANA

* UNTIL 445 PM EST

* AT 418 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER COATESVILLE...OR ABOUT 28 MILES SOUTH     
  OF CRAWFORDSVILLE...MOVING SOUTHEAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  STILESVILLE AT 430 PM EST
  LITTLE POINT AT 440 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 3977 8670 3957 8665 3936 8633 3975 8634

TUCEK

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 6, 2:34 PM EST	Severe Thunderstorm Warning	IND	Fountain, Warren	41 min
Apr 6, 3:10 PM EST	Severe Thunderstorm Warning	IND	Montgomery, Parke	50 min
Apr 6, 3:22 PM EST	Severe Thunderstorm Warning	IND	Fountain	23 min
Apr 6, 3:43 PM EST	Severe Thunderstorm Warning	IND	Putnam	32 min
Apr 6, 4:17 PM EST	Severe Thunderstorm Warning	IND	Putnam	13 min
Apr 6, 4:31 PM EST	Severe Thunderstorm Warning	IND	Putnam	29 min
Apr 6, 4:43 PM EST	Severe Thunderstorm Warning	IND	Morgan	47 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2001 Every severe thunderstorm warning in 2001

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.