Alert archive / Indiana / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 5, NWS Indianapolis, IN

February 28, 20117 counties in Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Feb 28, 2011, 2:33 AM EST for 7 counties in Indiana. It was in force for 27 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: Feb 28, 2011, 2:33 AM EST (07:33 UTC)
Expired: Feb 28, 2011, 3:00 AM EST
In force: 27 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

Counties Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Madison County, IN, Marion County, IN, Morgan County, IN, Shelby County, IN

The radar

The Indianapolis radar (KIND), 28 km from the middle of the area, began a volume at 07:36 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
Feb 28, 12:46 AM EST	Tornado Watch	SPC	5 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 7.6 hours before the alert went out and 189 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: 539 m above ground
0-6 km bulk shear: 72 kt
0-1 km storm-relative helicity: 325 m²/s²
0-3 km storm-relative helicity: 380 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

766 
WUUS53 KIND 280733
SVRIND
INC057-059-063-095-097-109-145-280800-
/O.NEW.KIND.SV.W.0005.110228T0733Z-110228T0800Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
233 AM EST MON FEB 28 2011

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN HAMILTON COUNTY IN CENTRAL INDIANA...
  HANCOCK COUNTY IN CENTRAL INDIANA...
  HENDRICKS COUNTY IN CENTRAL INDIANA...
  SOUTHERN MADISON COUNTY IN CENTRAL INDIANA...
  MARION COUNTY IN CENTRAL INDIANA...
  NORTHEASTERN MORGAN COUNTY IN CENTRAL INDIANA...
  NORTHWESTERN SHELBY COUNTY IN CENTRAL INDIANA...

* UNTIL 300 AM EST

* AT 227 AM EST...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 7 MILES SOUTHWEST OF DANVILLE TO 6 MILES NORTH OF
  INDIANAPOLIS...AND MOVING EAST AT 70 MPH. NICKEL SIZE HAIL MAY ALSO
  ACCOMPANY THESE DAMAGING WINDS.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  INDIANAPOLIS INT'L AIRPORT...PLAINFIELD...CAMBY AND LAWRENCE AROUND
  240 AM EST...
  PENDLETON AND INGALLS AROUND 245 AM EST...
  INDIANAPOLIS...MONUMENT CIRCLE...BEECH GROVE AND HOMECROFT AROUND
  250 AM EST...
  WARREN PARK AROUND 255 AM EST...
  WILKINSON...CUMBERLAND...SPRING LAKE AND NEW PALESTINE AROUND 300
  AM EST...

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 101 AND 127.

THIS INCLUDES INTERSTATE 69 BETWEEN MILE MARKERS 0 AND 20.

THIS INCLUDES INTERSTATE 70 BETWEEN MILE MARKERS 54 AND 112.

THIS INCLUDES INTERSTATE 74 BETWEEN MILE MARKERS 60 AND 102.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

&&

LAT...LON 3980 8561 3979 8564 3971 8566 3965 8595
      3963 8626 3961 8627 3957 8658 3985 8668
      4003 8579 4003 8558
TIME...MOT...LOC 0733Z 254DEG 59KT 3972 8649 3988 8598
WIND...HAIL 60MPH 0.88IN

$$

50

1 follow-up statement

242 
WWUS53 KIND 280805
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
305 AM EST MON FEB 28 2011

INC057-059-063-095-097-109-145-280816-
/O.EXP.KIND.SV.W.0005.000000T0000Z-110228T0800Z/
HAMILTON-HANCOCK-HENDRICKS-MADISON-MARION-MORGAN-SHELBY-
305 AM EST MON FEB 28 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MORGAN...
NORTHWESTERN SHELBY...HENDRICKS...MARION...HANCOCK...SOUTHERN
HAMILTON AND SOUTHERN MADISON COUNTIES HAS EXPIRED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS WEAKENED BELOW
SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR
PROPERTY.  HOWEVER GUSTY WINDS AND HEAVY RAIN ARE STILL POSSIBLE WITH
THESE THUNDERSTORMS.

IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A TORNADO 
WATCH REMAINS IN EFFECT UNTIL 600 AM EST.

LAT...LON 3980 8561 3979 8564 3971 8566 3965 8595
      3963 8626 3961 8627 3957 8658 3985 8668
      4003 8579 4003 8558
TIME...MOT...LOC 0733Z 254DEG 59KT 3972 8649 3988 8598

$$

NIELD

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 27, 9:32 PM EST	Severe Thunderstorm Warning	IND	Boone, Clinton, Hamilton, Howard, Montgomery, Tipton	43 min
Feb 27, 10:14 PM EST	Special Weather Statement	IND	Fountain, Tippecanoe	31 min
Feb 27, 10:46 PM EST	Severe Thunderstorm Warning	IND	Boone, Hamilton, Hendricks, Marion, Morgan, Owen and 1 more	44 min
Feb 27, 11:05 PM EST	Severe Thunderstorm Warning	IND	Fountain, Montgomery, Parke, Putnam, Vermillion	40 min
Feb 27, 11:46 PM EST	Special Weather Statement	IND	Boone	29 min
Feb 28, 12:31 AM EST	Areal Flood Warning	IND	Boone, Clay, Fountain, Hendricks, Marion, Montgomery and 7 more	42 hr
Feb 28, 12:35 AM EST	Areal Flood Warning	IND	Boone, Decatur, Delaware, Hamilton, Hancock, Henry and 5 more	42 hr
Feb 28, 1:08 AM EST	Tornado Warning	IND	Bartholomew, Brown, Johnson, Monroe, Morgan	37 min
Feb 28, 1:25 AM EST	Tornado Warning	IND	Delaware, Randolph	35 min
Feb 28, 1:29 AM EST	Areal Flood Warning	IND	Delaware, Henry, Randolph	41 hr
Feb 28, 1:59 AM EST	Severe Thunderstorm Warning	IND	Hamilton, Hendricks, Marion	31 min
Feb 28, 2:08 AM EST	Tornado Warning	IND	Clay, Hendricks, Morgan, Owen, Parke, Putnam and 1 more	37 min
Feb 28, 2:19 AM EST	Tornado Warning	IND	Delaware, Henry, Madison, Randolph	26 min
Feb 28, 2:24 AM EST	Areal Flood Warning	IND	Boone, Clinton, Delaware, Hamilton, Howard, Madison and 1 more	40 hr
Feb 28, 2:38 AM EST	Tornado Warning	IND	Hendricks, Marion, Morgan, Putnam	37 min
Feb 28, 2:43 AM EST	Tornado Warning	IND	Delaware, Henry, Randolph	32 min
Feb 28, 3:42 AM EST	Severe Thunderstorm Warning	IND	Hancock, Henry, Rush, Shelby	48 min
Feb 28, 4:05 AM EST	Severe Thunderstorm Warning	IND	Bartholomew, Decatur, Rush, Shelby	40 min
Feb 28, 5:22 AM EST	River Flood Warning	IND	Delaware, Madison	56 hr
Feb 28, 5:22 AM EST	River Flood Warning	IND	Hamilton, Madison	62 hr
Feb 28, 5:22 AM EST	River Flood Warning	IND	Hamilton, Marion	4 days
Feb 28, 5:22 AM EST	River Flood Warning	IND	Marion, Morgan	4 days
Feb 28, 5:22 AM EST	River Flood Warning	IND	Marion, Morgan	4 days
Feb 28, 5:22 AM EST	River Flood Warning	IND	Clay, Greene	62 hr
Feb 28, 11:18 AM EST	River Flood Warning	IND	Morgan, Owen	10 days
Feb 28, 11:18 AM EST	River Flood Warning	IND	Morgan, Owen	10 days
Feb 28, 11:18 AM EST	River Flood Warning	IND	Shelby	50 hr
Feb 28, 11:18 AM EST	River Flood Warning	IND	Montgomery, Parke	35 hr

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.