Alert archive / Indiana / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 101, NWS Indianapolis, IN

May 10, 2011Delaware County, Henry County, Madison County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at May 10, 2011, 2:36 PM EDT for Delaware County, Henry County, Madison County, Indiana. It was in force for 24 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 10, 2011, 2:36 PM EDT (18:36 UTC)
Expired: May 10, 2011, 3:00 PM EDT
In force: 24 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Delaware County, IN, Henry County, IN, Madison County, IN

The radar

The Indianapolis radar (KIND), 73 km from the middle of the area, began a volume at 18:36 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 10, 1:10 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 6.6 hours before the alert went out and 164 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: 9 J/kg
Mixed-layer CIN: -487 J/kg
Mixed-layer LCL: 1473 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 194 m²/s²
0-3 km storm-relative helicity: 252 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.2

Open this sounding in Storm Lab

The text

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

737 
WUUS53 KIND 101836
SVRIND
INC035-065-095-101900-
/O.NEW.KIND.SV.W.0101.110510T1836Z-110510T1900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
236 PM EDT TUE MAY 10 2011

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN DELAWARE COUNTY IN EAST CENTRAL INDIANA...
  NORTHWESTERN HENRY COUNTY IN EAST CENTRAL INDIANA...
  SOUTHEASTERN MADISON COUNTY IN CENTRAL INDIANA...

* UNTIL 300 PM EDT

* AT 232 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
  STORM WAS LOCATED NEAR ANDERSON...AND MOVING EAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  MARKLEVILLE AROUND 250 PM EDT...
  MIDDLETOWN AROUND 255 PM EDT...
  SULPHUR SPRINGS AROUND 300 PM EDT...

THIS INCLUDES INTERSTATE 69 BETWEEN MILE MARKERS 22 AND 32.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN INDIANAPOLIS.

&&

LAT...LON 4012 8537 3994 8541 3997 8562 4004 8575
      4007 8576
TIME...MOT...LOC 1837Z 275DEG 17KT 4006 8567
WIND...HAIL <50MPH 1.00IN

$$

MRD/SMF

1 follow-up statement

202 
WWUS53 KIND 101852
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
252 PM EDT TUE MAY 10 2011

INC035-065-095-101900-
/O.CON.KIND.SV.W.0101.000000T0000Z-110510T1900Z/
DELAWARE-HENRY-MADISON-
252 PM EDT TUE MAY 10 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
HENRY...SOUTHWESTERN DELAWARE AND SOUTHEASTERN MADISON COUNTIES UNTIL
300 PM EDT...

AT 249 PM EDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
THUNDERSTORM PRODUCING QUARTER SIZE HAIL.  THIS STORM WAS LOCATED
NEAR ANDERSON...MOVING EAST AT 15 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  MIDDLETOWN AROUND 300 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN INDIANAPOLIS.

&&

LAT...LON 4004 8566 4008 8567 4012 8537 3994 8541
      3997 8562
TIME...MOT...LOC 1852Z 270DEG 13KT 4006 8561
WIND...HAIL <50MPH 1.00IN

$$

MRD/SMF

The office that day

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

Issued	Product	Office	Counties	Lasted
May 10, 1:05 PM EDT	Special Weather Statement	IND	Clinton	25 min
May 10, 1:10 PM EDT	Severe Thunderstorm Warning	IND	Clinton, Montgomery, Tippecanoe	35 min
May 10, 1:42 PM EDT	Severe Thunderstorm Warning	IND	Hamilton, Hancock, Madison	33 min
May 10, 1:58 PM EDT	Severe Thunderstorm Warning	IND	Hamilton, Madison	32 min
May 10, 2:15 PM EDT	Severe Thunderstorm Warning	IND	Delaware, Madison	45 min
May 10, 2:29 PM EDT	Tornado Warning	IND	Delaware, Madison	36 min
May 10, 2:53 PM EDT	Severe Thunderstorm Warning	IND	Delaware, Randolph	52 min
May 10, 2:56 PM EDT	Severe Thunderstorm Warning	IND	Henry, Madison	18 min
May 10, 3:05 PM EDT	Severe Thunderstorm Warning	IND	Delaware, Madison	40 min
May 10, 3:43 PM EDT	Severe Thunderstorm Warning	IND	Delaware, Randolph	62 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2011 Every severe thunderstorm warning in 2011

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.