Alert archive / Indiana / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 166, NWS Indianapolis, IN

July 21, 2003Boone County, Carroll County, Clinton County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 21, 2003, 4:17 AM EST for Boone County, Carroll County, Clinton County, Indiana. It was in force for 58 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: Jul 21, 2003, 4:17 AM EST (09:17 UTC)
Expired: Jul 21, 2003, 5:15 AM EST
In force: 58 min
Issued by: NWS Indianapolis, IN
Area: Counties, with a storm outline in the text

Counties Boone County, IN, Carroll County, IN, Clinton County, IN

The radar

The Indianapolis radar (KIND), 83 km from the middle of the area, began a volume at 09:16 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 watch it was issued in

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

Issued	Product	Office	Lasted
Jul 21, 3:15 AM EST	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 9.3 hours before the alert went out and 180 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: 3794 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 1094 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 10 m²/s²
0-3 km storm-relative helicity: 40 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 2.8

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KIND 210917
SVRIND
INC011-015-023-211015-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
417 AM EST MON JUL 21 2003

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BOONE COUNTY IN CENTRAL INDIANA
  CLINTON COUNTY IN CENTRAL INDIANA
  THIS INCLUDES THE CITY OF FRANKFORT
  CARROLL COUNTY IN NORTH CENTRAL INDIANA

* UNTIL 515 AM EST

* AT 411 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM DELPHI TO 22 MILES WEST OF
  ADVANCE...OR FROM 14 MILES NORTHEAST OF LAFAYETTE TO 9 MILES
  SOUTHWEST OF CRAWFORDSVILLE...MOVING EAST AT 50 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  COLFAX AT 425 AM EST
  THORNTOWN AT 430 AM EST
  ULEN AT 435 AM EST
  LEBANON AT 440 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.

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 4069 8638 4044 8636 3995 8625 3994 8671
          4057 8671 4072 8678

$$

BIELINSKI

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 21, 3:31 AM EST	Severe Thunderstorm Warning	IND	Fountain, Tippecanoe, Warren	59 min
Jul 21, 3:53 AM EST	Severe Thunderstorm Warning	IND	Montgomery	52 min
Jul 21, 3:59 AM EST	Severe Thunderstorm Warning	IND	Parke, Vermillion	61 min
Jul 21, 4:25 AM EST	Severe Thunderstorm Warning	IND	Putnam	65 min
Jul 21, 4:36 AM EST	Severe Thunderstorm Warning	IND	Clay, Vigo	54 min
Jul 21, 4:38 AM EST	Severe Thunderstorm Warning	IND	Hendricks	67 min
Jul 21, 4:44 AM EST	Severe Thunderstorm Warning	IND	Howard	46 min
Jul 21, 4:50 AM EST	Severe Thunderstorm Warning	IND	Hamilton, Marion, Morgan	55 min
Jul 21, 5:11 AM EST	Severe Thunderstorm Warning	IND	Hancock, Johnson, Madison	64 min
Jul 21, 5:26 AM EST	Severe Thunderstorm Warning	IND	Bartholomew, Brown, Monroe, Shelby	64 min
Jul 21, 5:30 AM EST	Severe Thunderstorm Warning	IND	Delaware, Henry, Rush	60 min
Jul 21, 5:38 AM EST	Severe Thunderstorm Warning	IND	Decatur	67 min
Jul 21, 5:46 AM EST	Severe Thunderstorm Warning	IND	Randolph	59 min
Jul 21, 5:50 AM EST	Severe Thunderstorm Warning	IND	Jackson, Jennings, Lawrence	55 min
Jul 21, 5:42 PM EST	Tornado Warning	IND	Daviess, Martin	33 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2003 Every severe thunderstorm warning in 2003

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.