Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 33, NWS Northern Indiana

June 29, 2012LaPorte County, Marshall County, Saint Joseph County, Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Jun 29, 2012, 12:36 PM CDT for LaPorte County, Marshall County, Saint Joseph County, Indiana. It was in force for 39 min. 2 reports 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: Jun 29, 2012, 12:36 PM CDT (17:36 UTC)
Expired: Jun 29, 2012, 1:15 PM CDT
In force: 39 min
Issued by: NWS Northern Indiana
Area: Storm-based polygon
Hail: 0.5 in
Wind: 60.0 mph

Counties LaPorte County, IN, Marshall County, IN, Saint Joseph County, IN

The radar

The Northern Indiana radar (KIWX), 60 km from the middle of the area, began a volume at 17:36 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.

What was reported inside it

Time	Report	Where	Remark
Jun 29, 12:42 PM CDT	TSTM WND GST 62	4 Nw South Bend, IN
Jun 29, 1:01 PM CDT	TSTM WND DMG	Mishawaka, IN	LARGE TREE ON TOP OF A CAR BLOCKING THE STREET

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
Jun 29, 10:49 AM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 5.6 hours before the alert went out and 254 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: 4040 J/kg
Mixed-layer CIN: -143 J/kg
Mixed-layer LCL: 1426 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: -41 m²/s²
0-3 km storm-relative helicity: -8 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.2

Open this sounding in Storm Lab

The text

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

600 
WUUS53 KIWX 291736
SVRIWX
INC091-099-141-291815-
/O.NEW.KIWX.SV.W.0033.120629T1736Z-120629T1815Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
136 PM EDT FRI JUN 29 2012

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN MARSHALL COUNTY IN NORTH CENTRAL INDIANA...
  EAST CENTRAL LA PORTE COUNTY IN NORTHWEST INDIANA...
  ST. JOSEPH COUNTY IN NORTH CENTRAL INDIANA...

* UNTIL 215 PM EDT/115 PM CDT/

* AT 1231 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS SEVERE STORM WAS LOCATED 4 MILES SOUTH OF NEW
  CARLISLE...OR 11 MILES EAST OF LA PORTE...AND MOVING EAST AT 40
  MPH.

* LOCATIONS IN THE PATH OF THE SEVERE THUNDERSTORM INCLUDE...
  GULIVOIRE PARK...LAKEVILLE AND SOUTH BEND...
  MISHAWAKA...
  OSCEOLA...

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE
CHAIN-O-LAKES...LYDICK...INDIAN VILLAGE...WOODLAND AND WYATT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS SEVERE THUNDERSTORM. IF YOU ARE IN THE PATH...
PREPARE IMMEDIATELY FOR DAMAGING WINDS IN EXCESS OF 60 MPH...ALONG
WITH DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO
A SHELTER...PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM
WINDOWS.

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

&&

LAT...LON 4176 8652 4172 8607 4162 8607 4146 8608
      4152 8662
TIME...MOT...LOC 1736Z 283DEG 27KT 4163 8646
WIND...HAIL 60MPH <.50IN

$$

MCS

2 follow-up statements

564 
WWUS53 KIWX 291747
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
147 PM EDT FRI JUN 29 2012

INC091-291757-
/O.CAN.KIWX.SV.W.0033.000000T0000Z-120629T1815Z/
LA PORTE IN-
1247 PM CDT FRI JUN 29 2012

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL LA PORTE COUNTY
IS CANCELLED...

AT 1245 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THAT THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAD WEAKENED
OR MOVED OUT AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR
PROPERTY. THEREFORE...THE SEVERE THUNDERSTORM WARNING HAS BEEN
CANCELLED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4174 8630 4172 8607 4162 8607 4146 8608
      4149 8639
TIME...MOT...LOC 1747Z 283DEG 27KT 4160 8628

$$

INC099-141-291815-
/O.CON.KIWX.SV.W.0033.000000T0000Z-120629T1815Z/
ST. JOSEPH IN-MARSHALL IN-
147 PM EDT FRI JUN 29 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM EDT
FOR NORTHEASTERN MARSHALL AND EASTERN ST. JOSEPH COUNTIES...

AT 145 PM EDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE 
THUNDERSTORM PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS 
SEVERE STORM WAS LOCATED NEAR GULIVOIRE PARK...AND MOVING EAST AT 30 
MPH.

LOCATIONS IMPACTED INCLUDE...
  GULIVOIRE PARK...MISHAWAKA...LAKEVILLE...OSCEOLA...WOODLAND AND
  WYATT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS SEVERE THUNDERSTORM. IF YOU ARE IN THE PATH...
PREPARE IMMEDIATELY FOR DAMAGING WINDS IN EXCESS OF 60 MPH...ALONG
WITH DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO
A SHELTER...PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM
WINDOWS.

THIS SEVERE THUNDERSTORM HAS A HISTORY OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH AND. 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 NORTHERN INDIANA.

&&

LAT...LON 4174 8630 4172 8607 4162 8607 4146 8608
      4149 8639
TIME...MOT...LOC 1747Z 283DEG 27KT 4160 8628
WIND...HAIL 60MPH <.50IN

$$

MCS

027 
WWUS53 KIWX 291808
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
208 PM EDT FRI JUN 29 2012

INC099-141-291818-
/O.EXP.KIWX.SV.W.0033.000000T0000Z-120629T1815Z/
ST. JOSEPH IN-MARSHALL IN-
208 PM EDT FRI JUN 29 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MARSHALL AND
EASTERN ST. JOSEPH COUNTIES WILL EXPIRE AT 215 PM EDT...

AT 204 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAD WEAKENED.
THEREFORE...THE SEVERE THUNDERSTORM WARNING HAS BEEN ALLOWED TO
EXPIRE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4174 8630 4172 8607 4162 8607 4146 8608
      4149 8639
TIME...MOT...LOC 1808Z 283DEG 27KT 4156 8608

$$
 
MCS

The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 28, 7:51 PM CDT	Severe Thunderstorm Warning	IWX	LaPorte, Starke	39 min
Jun 28, 8:18 PM CDT	Severe Thunderstorm Warning	IWX	Pulaski, Starke	42 min
Jun 28, 8:47 PM CDT	Severe Thunderstorm Warning	IWX	Cass, Fulton, Pulaski	43 min
Jun 28, 9:07 PM CDT	Severe Thunderstorm Warning	IWX	Cass, Pulaski, Starke, White	38 min
Jun 28, 9:15 PM CDT	Severe Thunderstorm Warning	IWX	Cass, Fulton, Miami, Wabash	32 min
Jun 29, 3:13 AM CDT	Heat Advisory	IWX	Adams, Allen, Blackford, Cass, DeKalb, Fulton and 10 more	11 hr
Jun 29, 12:25 PM CDT	Special Weather Statement	IWX	Starke	50 min
Jun 29, 12:30 PM CDT	Special Weather Statement	IWX	LaPorte, Saint Joseph	30 min
Jun 29, 12:42 PM CDT	Severe Thunderstorm Warning	IWX	Fulton, LaPorte, Marshall, Pulaski, Starke	37 min
Jun 29, 12:55 PM CDT	Special Weather Statement	IWX	Elkhart	35 min
Jun 29, 1:05 PM CDT	Special Weather Statement	IWX	Cass, Fulton, Pulaski	25 min
Jun 29, 1:06 PM CDT	Severe Thunderstorm Warning	IWX	Fulton, Kosciusko, Marshall, Miami, Wabash, Whitley	39 min
Jun 29, 1:13 PM CDT	Special Weather Statement	IWX	LaGrange, Noble	47 min
Jun 29, 1:18 PM CDT	Severe Thunderstorm Warning	IWX	Cass, Grant, Huntington, Miami, Wabash, Wells	42 min
Jun 29, 1:18 PM CDT	Severe Thunderstorm Warning	IWX	Elkhart, Kosciusko, LaGrange, Noble, Whitley	42 min
Jun 29, 1:25 PM CDT	Severe Thunderstorm Warning	IWX	Allen, Huntington, Wells, Whitley	50 min
Jun 29, 1:48 PM CDT	Severe Thunderstorm Warning	IWX	Adams, Allen, DeKalb, Huntington, Noble, Wells and 1 more	27 min
Jun 29, 1:54 PM CDT	Severe Thunderstorm Warning	IWX	Adams, Blackford, Grant, Huntington, Jay, Wells	51 min
Jun 29, 2:15 PM CDT	Tornado Warning	IWX	Allen	30 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2012 Every severe thunderstorm warning in 2012

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.