Alert archive / Indiana / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 121, NWS Indianapolis, IN

May 23, 2011Parke County, Vermillion County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at May 23, 2011, 4:21 PM EDT for Parke County, Vermillion County, Indiana. It was in force for 24 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: May 23, 2011, 4:21 PM EDT (20:21 UTC)
Expired: May 23, 2011, 4:45 PM EDT
In force: 24 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Parke County, IN, Vermillion County, IN

The radar

The Indianapolis radar (KIND), 91 km from the middle of the area, began a volume at 20:24 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
May 23, 4:23 PM EDT	TSTM WND GST 60	Ssw Clinton, IN	PEA SIZED HAIL ALSO REPORTED.

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
May 23, 1:54 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 8.4 hours before the alert went out and 119 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: 504 J/kg
Mixed-layer CIN: -92 J/kg
Mixed-layer LCL: 1171 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 139 m²/s²
0-3 km storm-relative helicity: 167 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.7

Open this sounding in Storm Lab

The text

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

030 
WUUS53 KIND 232021
SVRIND
INC121-165-232045-
/O.NEW.KIND.SV.W.0121.110523T2021Z-110523T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
421 PM EDT MON MAY 23 2011

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN PARKE COUNTY IN WEST CENTRAL INDIANA...
  SOUTHERN VERMILLION COUNTY IN WEST CENTRAL INDIANA...

* UNTIL 445 PM EDT

* AT 419 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR   
  CLINTON...OR 12 MILES NORTH OF TERRE HAUTE...AND MOVING NORTHEAST 
  AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  ROSEDALE AND MECCA AROUND 425 PM EDT...
  BRIDGETON AROUND 430 PM EDT...
  ROCKVILLE AROUND 435 PM EDT...
  JUDSON AROUND 440 PM EDT...
  CECIL HARDEN LAKE AROUND 445 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 3971 8754 3987 8701 3961 8702 3961 8742
      3961 8753
TIME...MOT...LOC 2020Z 247DEG 42KT 3965 8738
WIND...HAIL 60MPH 1.00IN

$$

HOMANN/TUCEK

1 follow-up statement

635 
WWUS53 KIND 232032
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
432 PM EDT MON MAY 23 2011

INC121-165-232045-
/O.CON.KIND.SV.W.0121.000000T0000Z-110523T2045Z/
PARKE-VERMILLION-
432 PM EDT MON MAY 23 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN PARKE
AND SOUTHERN VERMILLION COUNTIES UNTIL 445 PM EDT...

AT 428 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 6 MILES
SOUTH OF ROCKVILLE...OR 16 MILES NORTHEAST OF TERRE HAUTE...MOVING
NORTHEAST AT 40 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  CECIL HARDEN LAKE AND JUDSON AROUND 440 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 3971 8754 3987 8701 3961 8702 3961 8742
      3961 8753
TIME...MOT...LOC 2032Z 247DEG 42KT 3970 8721
WIND...HAIL 60MPH 1.00IN

$$

HOMANN/TUCEK

The office that day

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

Issued	Product	Office	Counties	Lasted
May 22, 8:10 PM EDT	Special Weather Statement	IND	Howard	35 min
May 23, 12:03 AM EDT	Severe Thunderstorm Warning	IND	Clay, Morgan, Owen, Putnam	42 min
May 23, 1:10 AM EDT	Special Weather Statement	IND	Lawrence	35 min
May 23, 2:09 AM EDT	Special Weather Statement	IND	Jackson, Jennings	36 min
May 23, 3:04 AM EDT	Special Weather Statement	IND	Jackson, Jennings	26 min
May 23, 3:50 PM EDT	Severe Thunderstorm Warning	IND	Knox, Sullivan, Vigo	40 min
May 23, 4:27 PM EDT	Severe Thunderstorm Warning	IND	Clay, Daviess, Greene, Knox, Martin, Owen and 2 more	48 min
May 23, 4:40 PM EDT	Severe Thunderstorm Warning	IND	Clay, Parke, Putnam, Vermillion, Vigo	35 min
May 23, 4:51 PM EDT	Severe Thunderstorm Warning	IND	Fountain, Montgomery, Parke, Putnam, Vermillion, Warren	39 min
May 23, 4:53 PM EDT	Severe Thunderstorm Warning	IND	Hendricks, Marion, Morgan	37 min
May 23, 5:06 PM EDT	Severe Thunderstorm Warning	IND	Brown, Lawrence, Monroe, Morgan, Owen	24 min
May 23, 5:25 PM EDT	Severe Thunderstorm Warning	IND	Bartholomew, Brown, Hancock, Hendricks, Jackson, Johnson and 5 more	50 min
May 23, 5:30 PM EDT	Tornado Warning	IND	Jackson, Lawrence	30 min
May 23, 5:44 PM EDT	Severe Thunderstorm Warning	IND	Boone, Clinton, Montgomery	31 min
May 23, 5:45 PM EDT	Tornado Warning	IND	Hancock, Johnson, Shelby	45 min
May 23, 5:56 PM EDT	Tornado Warning	IND	Bartholomew, Decatur, Shelby	34 min
May 23, 6:01 PM EDT	Severe Thunderstorm Warning	IND	Bartholomew, Decatur, Hancock, Jackson, Jennings, Rush and 1 more	44 min
May 23, 6:08 PM EDT	Tornado Warning	IND	Jennings	18 min
May 23, 6:15 PM EDT	Severe Thunderstorm Warning	IND	Delaware, Hamilton, Hancock, Henry, Madison, Rush	45 min
May 23, 6:45 PM EDT	Severe Thunderstorm Warning	IND	Delaware, Henry, Randolph	33 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.