Alert archive / Indiana / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 21, NWS Indianapolis, IN

April 11, 2007Delaware County, Madison County, Randolph County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Apr 11, 2007, 7:44 PM EDT for Delaware County, Madison County, Randolph County, Indiana. It was in force for 46 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 11, 2007, 7:44 PM EDT (23:44 UTC)
Expired: Apr 11, 2007, 8:30 PM EDT
In force: 46 min
Issued by: NWS Indianapolis, IN
Area: Counties, with a storm outline in the text

Counties Delaware County, IN, Madison County, IN, Randolph County, IN

The radar

The Indianapolis radar (KIND), 100 km from the middle of the area, began a volume at 23:44 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 11, 7:46 PM EDT	TSTM WND GST 60	Anderson, IN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

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 11, 5:28 PM EDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.7 hours before the alert went out and 152 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: 1328 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 260 m²/s²
0-3 km storm-relative helicity: 339 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 KIND 112345
SVRIND
INC035-095-135-120030-
/O.NEW.KIND.SV.W.0021.070411T2344Z-070412T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
744 PM EDT WED APR 11 2007

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL MADISON COUNTY IN CENTRAL INDIANA...
  THIS INCLUDES THE CITY OF ANDERSON...
  DELAWARE COUNTY IN EAST CENTRAL INDIANA...
  THIS INCLUDES THE CITY OF MUNCIE...
  RANDOLPH COUNTY IN EAST CENTRAL INDIANA...

* UNTIL 830 PM EDT

* AT 740 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM NEAR ANDERSON TO 14 MILES SOUTHEAST OF MUNCIE TO CAMBRIDGE 
  CITY...AND MOVING NORTHEAST AT 45 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  YORKTOWN BY 750 PM EDT...
  GASTON BY 755 PM EDT...
  WINCHESTER BY 800 PM EDT...
  EATON BY 805 PM EDT...

THIS INCLUDES INTERSTATE 69 BETWEEN MILE MARKERS 31 AND 45.

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 4007 8584 4007 8523 4001 8521 4002 8482
      4032 8480 4032 8522 4039 8521 4039 8543

$$

2 follow-up statements

000 
WWUS53 KIND 120010
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
809 PM EDT WED APR 11 2007

INC095-120019-
/O.CAN.KIND.SV.W.0021.000000T0000Z-070412T0030Z/
MADISON-
809 PM EDT WED APR 11 2007

...THE SEVERE THUNDERSTORM WARNING FOR MADISON COUNTY IS CANCELLED...

THE STRONGEST PART OF THE STORM HAS EXITED THE AREA.

LAT...LON 4014 8560 4007 8523 4001 8521 4002 8482
      4032 8480 4032 8522 4039 8521 4039 8543

$$

INC035-135-120030-
/O.CON.KIND.SV.W.0021.000000T0000Z-070412T0030Z/
DELAWARE-RANDOLPH-
809 PM EDT WED APR 11 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM EDT
FOR RANDOLPH AND DELAWARE COUNTIES...

AT 805 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE 
EXTENDING FROM MUNCIE TO WINCHESTER TO 8 MILES EAST OF LYNN...MOVING 
NORTHEAST AT 45 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  UNION CITY BY 815 PM EDT...

LAT...LON 4014 8560 4007 8523 4001 8521 4002 8482
      4032 8480 4032 8522 4039 8521 4039 8543

$$

000 
WWUS53 KIND 120031
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
831 PM EDT WED APR 11 2007

INC035-135-120041-
/O.EXP.KIND.SV.W.0021.000000T0000Z-070412T0030Z/
DELAWARE-RANDOLPH-
831 PM EDT WED APR 11 2007

...THE SEVERE THUNDERSTORM WARNING FOR RANDOLPH AND DELAWARE COUNTIES
EXPIRED AT 830 PM EDT...

THE STRONGEST PART OF THE STORMS HAVE EXITED THE WARNED AREA.

LAT...LON 4014 8560 4007 8523 4001 8521 4002 8482
      4032 8480 4032 8522 4039 8521 4039 8543

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 11, 5:04 PM EDT	Severe Thunderstorm Warning	IND	Hendricks, Putnam	26 min
Apr 11, 5:29 PM EDT	Severe Thunderstorm Warning	IND	Clay, Parke, Vigo	31 min
Apr 11, 5:38 PM EDT	Tornado Warning	IND	Boone, Hendricks	37 min
Apr 11, 5:46 PM EDT	Severe Thunderstorm Warning	IND	Brown, Greene, Monroe, Owen	44 min
Apr 11, 6:01 PM EDT	Tornado Warning	IND	Putnam	30 min
Apr 11, 6:14 PM EDT	Tornado Warning	IND	Boone	31 min
Apr 11, 6:22 PM EDT	Severe Thunderstorm Warning	IND	Bartholomew, Brown, Hancock, Johnson, Marion, Morgan and 1 more	38 min
Apr 11, 6:37 PM EDT	Tornado Warning	IND	Hamilton, Tipton	38 min
Apr 11, 6:40 PM EDT	Tornado Warning	IND	Boone, Hendricks	35 min
Apr 11, 6:59 PM EDT	Severe Thunderstorm Warning	IND	Decatur, Hancock, Henry, Madison, Marion, Rush and 1 more	46 min
Apr 11, 7:13 PM EDT	Tornado Warning	IND	Hamilton, Madison, Tipton	47 min
Apr 11, 7:19 PM EDT	Severe Thunderstorm Warning	IND	Hamilton, Madison	26 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2007 Every severe thunderstorm warning in 2007

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.