Alert archive / Indiana / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 8, NWS Indianapolis, IN

May 18, 2004Montgomery County, Parke County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at May 18, 2004, 4:30 PM EST for Montgomery County, Parke County, Indiana. It was in force for 45 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: May 18, 2004, 4:30 PM EST (21:30 UTC)
Expired: May 18, 2004, 5:15 PM EST
In force: 45 min
Issued by: NWS Indianapolis, IN
Area: Counties, with a storm outline in the text

Counties Montgomery County, IN, Parke County, IN

The radar

The Indianapolis radar (KIND), 67 km from the middle of the area, began a volume at 21:32 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
May 18, 12:45 PM EST	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 9.5 hours before the alert went out and 138 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: 989 J/kg
Mixed-layer CIN: -53 J/kg
Mixed-layer LCL: 838 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 124 m²/s²
0-3 km storm-relative helicity: 85 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.1

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KIND 182130
SVRIND
INC107-121-182215-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
430 PM EST TUE MAY 18 2004

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN MONTGOMERY COUNTY IN WEST CENTRAL INDIANA
  THIS INCLUDES THE CITY OF CRAWFORDSVILLE
  NORTHERN PARKE COUNTY IN WEST CENTRAL INDIANA

* UNTIL 515 PM EST

* AT 427 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DIME SIZE HAIL.  THIS
  STORM WAS LOCATED 6 MILES NORTHWEST OF MARSHALL...OR ABOUT 19 MILES
  SOUTHWEST OF CRAWFORDSVILLE...AND MOVING EAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  ALAMO AROUND 450 PM EST
  NEW MARKET AROUND 505 PM EST
  CRAWFORDSVILLE AROUND 515 PM EST

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS. THIS STORM HAS THE POTENTIAL TO CAUSE SERIOUS
INJURY AND SIGNIFICANT DAMAGE TO PROPERTY.

LAT...LON 3994 8675 3991 8687 3983 8730 3994 8734
          3996 8710 4006 8710 4012 8674

$$

KOCH

The office that day

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

Issued	Product	Office	Counties	Lasted
May 18, 1:59 PM EST	Severe Thunderstorm Warning	IND	Parke, Vermillion	61 min
May 18, 5:04 PM EST	Flash Flood Warning	IND	Fountain, Parke, Vermillion	116 min
May 18, 5:11 PM EST	Severe Thunderstorm Warning	IND	Morgan	34 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2004 Every severe thunderstorm warning in 2004

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.