Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 101, NWS Northern Indiana

August 4, 20125 counties in Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Aug 4, 2012, 7:01 PM EDT for 5 counties in Indiana. It was in force for 33 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: Aug 4, 2012, 7:01 PM EDT (23:01 UTC)
Expired: Aug 4, 2012, 7:34 PM EDT
In force: 33 min
Issued by: NWS Northern Indiana
Area: Storm-based polygon
Hail: 0.5 in
Wind: 60.0 mph

Counties Fulton County, IN, Kosciusko County, IN, Marshall County, IN, Miami County, IN, Wabash County, IN

The radar

The Northern Indiana radar (KIWX), 26 km from the middle of the area, began a volume at 23:01 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
Aug 4, 7:01 PM EDT	TSTM WND DMG	Warsaw, IN	NUMEROUS TREES DOWN IN WARSAW...WINONA LAKE....AND ACROSS NORTHERN PORTIONS OF THE COUNTY

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
Aug 4, 5:35 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 11.0 hours before the alert went out and 256 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: 3403 J/kg
Mixed-layer CIN: -57 J/kg
Mixed-layer LCL: 817 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 61 m²/s²
0-3 km storm-relative helicity: 63 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.8

Open this sounding in Storm Lab

The text

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

761 
WUUS53 KIWX 042301
SVRIWX
INC049-085-099-103-169-042345-
/O.NEW.KIWX.SV.W.0101.120804T2301Z-120804T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
701 PM EDT SAT AUG 4 2012

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN MIAMI COUNTY IN NORTH CENTRAL INDIANA...
  NORTHERN WABASH COUNTY IN NORTH CENTRAL INDIANA...
  SOUTHERN KOSCIUSKO COUNTY IN NORTH CENTRAL INDIANA...
  SOUTHEASTERN MARSHALL COUNTY IN NORTH CENTRAL INDIANA...
  EASTERN FULTON COUNTY IN NORTH CENTRAL INDIANA...

* UNTIL 745 PM EDT

* AT 656 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE SEVERE STORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 4 MILES SOUTH OF ARGOS TO 13 MILES SOUTHWEST OF
  ROCHESTER...AND MOVING EAST AT 40 MPH.

* LOCATIONS IN THE PATH OF SEVERE THUNDERSTORMS INCLUDE...
  MENTONE AND AKRON...
  WINONA LAKE AND WARSAW...
  NORTH WEBSTER...NORTH MANCHESTER AND PIERCETON...

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE OLD
TIP TOWN...TIPPECANOE...MACY...ATHENS...SEVASTOPOL...BEAVER DAM...
HOFFMAN LAKE...ATWOOD...GILEAD...BEAVER DAM LAKE...PALESTINE AND
BURKET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS LINE OF SEVERE THUNDERSTORMS. 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...POST YOUR INFORMATION ON THE NATIONAL
WEATHER SERVICE NORTHERN INDIANA FACEBOOK PAGE...OR YOU CAN POST ON
TWITTER WITH THE HASH TAG... @ N W S I W X. REPORTS CAN ALSO BE MADE
TO THE NATIONAL PUBLIC OBSERVATION REPORTING HOTLINE TOLL FREE AT
877-633-6772.

&&

LAT...LON 4130 8625 4127 8606 4137 8566 4121 8566
      4119 8566 4119 8569 4101 8569 4101 8564
      4094 8564 4092 8632
TIME...MOT...LOC 2301Z 265DEG 35KT 4119 8620 4090 8626
WIND...HAIL 60MPH <.50IN

$$

2 follow-up statements

278 
WWUS53 KIWX 042320
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
720 PM EDT SAT AUG 4 2012

INC049-085-099-103-169-042345-
/O.CON.KIWX.SV.W.0101.000000T0000Z-120804T2345Z/
FULTON IN-MARSHALL IN-KOSCIUSKO IN-WABASH IN-MIAMI IN-
720 PM EDT SAT AUG 4 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR NORTH CENTRAL MIAMI...NORTHERN WABASH...KOSCIUSKO...EXTREME
SOUTHEASTERN MARSHALL AND NORTHEASTERN FULTON COUNTIES...

AT 715 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 SEVERE STORMS WERE LOCATED ALONG A
LINE EXTENDING FROM MENTONE TO 9 MILES SOUTH OF AKRON...AND MOVING
EAST AT 40 MPH.

LOCATIONS IN THE PATH OF SEVERE THUNDERSTORMS INCLUDE...
  WINONA LAKE AND WARSAW...
  NORTH MANCHESTER...
  NORTH WEBSTER AND PIERCETON...

OTHER LOCATIONS IMPACTED BY THIS LINE OF SEVERE THUNDERSTORMS INCLUDE
DISKO...CLAYPOOL...SILVER LAKE...MONOQUET...LITTLE CHAPMAN LAKE...BIG
CHAPMAN LAKE...LAKETON...IJAMSVILLE...WOOSTER AND PACKERTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS LINE OF SEVERE THUNDERSTORMS. 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.

STAY TUNED TO WEATHER RADIO OR LOCAL MEDIA OUTLETS FOR THE LATEST
SEVERE WEATHER INFORMATION.

&&

LAT...LON 4127 8609 4137 8566 4121 8566 4119 8566
      4119 8569 4101 8569 4101 8564 4094 8564
      4093 8611
TIME...MOT...LOC 2320Z 265DEG 35KT 4121 8595 4092 8602
WIND...HAIL 60MPH <.50IN

$$

304 
WWUS53 KIWX 042334
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
734 PM EDT SAT AUG 4 2012

INC049-085-099-103-169-042345-
/O.CAN.KIWX.SV.W.0101.000000T0000Z-120804T2345Z/
FULTON IN-MARSHALL IN-KOSCIUSKO IN-WABASH IN-MIAMI IN-
734 PM EDT SAT AUG 4 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL MIAMI...NORTHERN
WABASH...KOSCIUSKO...SOUTHEASTERN MARSHALL AND NORTHEASTERN FULTON
COUNTIES IS CANCELLED...

AT 735 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE LINE OF SEVERE THUNDERSTORMS WHICH PROMPTED THE WARNING HAD MOVED
OUT OF THE AREA 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...POST YOUR INFORMATION ON THE NATIONAL
WEATHER SERVICE NORTHERN INDIANA FACEBOOK PAGE...OR YOU CAN POST ON
TWITTER WITH THE HASH TAG... @ N W S I W X. REPORTS CAN ALSO BE MADE
TO THE NATIONAL PUBLIC OBSERVATION REPORTING HOTLINE TOLL FREE AT
877-633-6772.

&&

LAT...LON 4127 8609 4137 8566 4121 8566 4119 8566
      4119 8569 4101 8569 4101 8564 4094 8564
      4093 8611
TIME...MOT...LOC 2335Z 262DEG 47KT 4125 8565 4096 8572

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 4, 3:48 PM EDT	Special Weather Statement	IWX	Cass	27 min
Aug 4, 3:55 PM EDT	Severe Thunderstorm Warning	IWX	Cass, Miami	50 min
Aug 4, 4:17 PM EDT	Rip Current Statement	IWX		38 hr
Aug 4, 4:20 PM EDT	Small Craft Advisory	IWX		31 hr
Aug 4, 4:24 PM EDT	Special Weather Statement	IWX	Grant	21 min
Aug 4, 4:44 PM EDT	Special Weather Statement	IWX	Huntington	31 min
Aug 4, 4:49 PM EDT	Special Weather Statement	IWX	Miami	26 min
Aug 4, 4:51 PM EDT	Special Weather Statement	IWX	Marshall	24 min
Aug 4, 4:57 PM EDT	Special Marine Warning	IWX		2 hr
Aug 4, 5:17 PM EDT	Special Weather Statement	IWX	Huntington, Wells, Whitley	28 min
Aug 4, 5:18 PM EDT	Special Weather Statement	IWX	Kosciusko, Marshall	27 min
Aug 4, 5:35 PM EDT	Severe Thunderstorm Warning	IWX	LaPorte, Pulaski, Saint Joseph, Starke	70 min
Aug 4, 5:38 PM EDT	Special Weather Statement	IWX	Fulton	52 min
Aug 4, 5:50 PM EDT	Severe Thunderstorm Warning	IWX	Fulton, Marshall, Pulaski	40 min
Aug 4, 6:03 PM EDT	Special Weather Statement	IWX	Allen	27 min
Aug 4, 6:08 PM EDT	Severe Thunderstorm Warning	IWX	Saint Joseph	52 min
Aug 4, 6:11 PM EDT	Severe Thunderstorm Warning	IWX	Marshall, Saint Joseph, Starke	49 min
Aug 4, 6:16 PM EDT	Special Weather Statement	IWX	LaGrange	29 min
Aug 4, 6:18 PM EDT	Tornado Warning	IWX	LaPorte, Saint Joseph	42 min
Aug 4, 6:39 PM EDT	Severe Thunderstorm Warning	IWX	Elkhart, Kosciusko, LaGrange, Noble	51 min
Aug 4, 7:12 PM EDT	Severe Thunderstorm Warning	IWX	Allen, Kosciusko, Noble, Whitley	48 min
Aug 4, 7:23 PM EDT	Severe Thunderstorm Warning	IWX	Grant	52 min
Aug 4, 7:29 PM EDT	Severe Thunderstorm Warning	IWX	Allen, Huntington, Wabash, Wells, Whitley	46 min
Aug 4, 7:31 PM EDT	Special Weather Statement	IWX	Steuben	44 min
Aug 4, 7:40 PM EDT	Severe Thunderstorm Warning	IWX	Allen, DeKalb	50 min
Aug 4, 7:57 PM EDT	Areal Flood Advisory	IWX	Allen, DeKalb, Steuben	93 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.