Alert archive / Indiana / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 99, NWS Indianapolis, IN

July 4, 2003Boone County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 4, 2003, 5:32 PM EST for Boone County, Indiana. It was in force for 43 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 4, 2003, 5:32 PM EST (22:32 UTC)
Expired: Jul 4, 2003, 6:15 PM EST
In force: 43 min
Issued by: NWS Indianapolis, IN
Area: Counties, with a storm outline in the text

County Boone County, IN

The radar

The Indianapolis radar (KIND), 44 km from the middle of the area, began a volume at 22:33 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 4, 2:20 PM EST	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.5 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: 1934 J/kg
Mixed-layer CIN: -125 J/kg
Mixed-layer LCL: 1197 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 103 m²/s²
0-3 km storm-relative helicity: 114 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.

951 
WUUS53 KIND 042232
SVRIND
INC011-042315-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
531 PM EST FRI JUL 4 2003

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BOONE COUNTY IN CENTRAL INDIANA

* UNTIL 615 PM EST

* AT 528 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER THORNTOWN...OR ABOUT 8 MILES SOUTHWEST OF
  FRANKFORT...MOVING EAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  WHITESTOWN AT 545 PM EST

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND...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 4005 8628 3997 8627 3997 8669 4017 8671
          4019 8653 4019 8631

$$

BIELINSKI

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 4, 5:15 PM EST	Severe Thunderstorm Warning	IND	Montgomery	45 min
Jul 4, 5:23 PM EST	Severe Thunderstorm Warning	IND	Howard	52 min
Jul 4, 5:56 PM EST	Tornado Warning	IND	Boone, Madison	49 min
Jul 4, 6:03 PM EST	Tornado Warning	IND	Boone	42 min
Jul 4, 6:07 PM EST	Severe Thunderstorm Warning	IND	Delaware, Hamilton, Madison, Tipton	53 min
Jul 4, 6:39 PM EST	Severe Thunderstorm Warning	IND	Marion	51 min
Jul 4, 6:44 PM EST	Severe Thunderstorm Warning	IND	Randolph	46 min
Jul 4, 6:49 PM EST	Severe Thunderstorm Warning	IND	Hancock, Henry	56 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.