Alert archive / Indiana / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 21, NWS Northern Indiana

April 26, 20114 counties in Indiana; Saint Joseph County, Michigan

NWS Northern Indiana issued this severe thunderstorm warning at Apr 26, 2011, 6:14 PM EDT for 4 counties in Indiana; Saint Joseph County, Michigan. It was in force for 20 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: Apr 26, 2011, 6:14 PM EDT (22:14 UTC)
Expired: Apr 26, 2011, 6:34 PM EDT
In force: 20 min
Issued by: NWS Northern Indiana
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Elkhart County, IN, Kosciusko County, IN, LaGrange County, IN, Noble County, IN, Saint Joseph County, MI

The radar

The Northern Indiana radar (KIWX), 44 km from the middle of the area, began a volume at 22:15 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
Apr 26, 6:15 PM EDT	HAIL 0.25	1 N Milford Junction, IN

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
Apr 26, 3:02 PM EDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 10.2 hours before the alert went out and 201 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: 547 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 687 m²/s²
0-3 km storm-relative helicity: 744 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

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

592 
WUUS53 KIWX 262214
SVRIWX
INC039-085-087-113-MIC149-262300-
/O.NEW.KIWX.SV.W.0021.110426T2214Z-110426T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
614 PM EDT TUE APR 26 2011

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN ST. JOSEPH COUNTY IN SOUTHWEST MICHIGAN...
  NORTH CENTRAL KOSCIUSKO COUNTY IN NORTH CENTRAL INDIANA...
  NORTHWESTERN NOBLE COUNTY IN NORTHEAST INDIANA...
  LAGRANGE COUNTY IN NORTHEAST INDIANA...
  EASTERN ELKHART COUNTY IN NORTH CENTRAL INDIANA...

* UNTIL 700 PM EDT

* AT 610 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 SEVERE STORM WAS LOCATED
  NEAR NEW PARIS...OR 6 MILES NORTHWEST OF SYRACUSE...AND MOVING
  NORTHEAST AT 60 MPH.

* LOCATIONS IN THE PATH OF THE SEVERE THUNDERSTORM INCLUDE...
  MILLERSBURG...
  MIDDLEBURY...
  LAGRANGE AND WHITE PIGEON...
  STURGIS...
  CENTREVILLE...

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE
HONEYVILLE...EMMA...SHIPSHEWANA...SCOTT...KLINGER LAKE...HOWE...
ONTARIO...BRIGHTON...FAWN RIVER...NOTTAWA AND WASEPI.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT TUESDAY EVENING
FOR NORTHERN INDIANA AND SOUTHERN MICHIGAN AND NORTHWESTERN OHIO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60
MPH...CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS
SEVERE THUNDERSTORM. MOVE INDOORS IMMEDIATELY! LIGHTNING IS ONE OF
NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU
ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

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 4180 8529 4176 8530 4176 8525 4172 8520
      4137 8584 4148 8598 4199 8552
TIME...MOT...LOC 2214Z 225DEG 53KT 4151 8579
WIND...HAIL 60MPH 1.00IN

$$


JC

2 follow-up statements

730 
WWUS53 KIWX 262227 RRA
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
627 PM EDT TUE APR 26 2011

INC085-262237-
/O.CAN.KIWX.SV.W.0021.000000T0000Z-110426T2300Z/
KOSCIUSKO IN-
627 PM EDT TUE APR 26 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL KOSCIUSKO COUNTY
IS CANCELLED...

AT 624 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAD MOVED 
OUT AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. 
THEREFORE...THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT TUESDAY EVENING
FOR NORTHERN INDIANA AND SOUTHERN MICHIGAN AND NORTHWESTERN OHIO.

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 4199 8552 4180 8529 4176 8530 4176 8525
      4172 8520 4147 8566 4160 8581
TIME...MOT...LOC 2227Z 236DEG 45KT 4160 8563

$$

INC039-087-113-MIC149-262300-
/O.CON.KIWX.SV.W.0021.000000T0000Z-110426T2300Z/
ELKHART IN-LAGRANGE IN-NOBLE IN-ST. JOSEPH MI-
627 PM EDT TUE APR 26 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR NORTHEASTERN ELKHART COUNTY IN NORTH CENTRAL INDIANA...AND
NORTHWESTERN NOBLE AND LAGRANGE COUNTIES IN NORTHEAST INDIANA...AND
SOUTHEASTERN ST. JOSEPH COUNTY IN SOUTHWEST MICHIGAN...

AT 624 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS SEVERE STORM WAS LOCATED 4 MILES NORTH OF
MILLERSBURG...OR ABOUT 9 MILES EAST OF GOSHEN...AND MOVING NORTHEAST
AT 50 MPH.

LOCATIONS IMPACTED INCLUDE...
  LAGRANGE...STURGIS...TOPEKA...WHITE PIGEON...CENTREVILLE...EMMA...
  SHIPSHEWANA...SCOTT...KLINGER LAKE AND HOWE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT TUESDAY EVENING
FOR NORTHERN INDIANA AND SOUTHERN MICHIGAN AND NORTHWESTERN OHIO.

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 4199 8552 4180 8529 4176 8530 4176 8525
      4172 8520 4147 8566 4160 8581
TIME...MOT...LOC 2227Z 236DEG 45KT 4160 8563
WIND...HAIL 60MPH <.50IN

$$


JC

239 
WWUS53 KIWX 262234
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
634 PM EDT TUE APR 26 2011

INC039-087-113-MIC149-262244-
/O.CAN.KIWX.SV.W.0021.000000T0000Z-110426T2300Z/
ELKHART IN-LAGRANGE IN-NOBLE IN-ST. JOSEPH MI-
634 PM EDT TUE APR 26 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN ELKHART COUNTY IN
NORTH CENTRAL INDIANA...AND NORTHWESTERN NOBLE AND LAGRANGE COUNTIES
IN NORTHEAST INDIANA...AND SOUTHEASTERN ST. JOSEPH COUNTY IN
SOUTHWEST MICHIGAN IS CANCELLED...

AT 633 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAD WEAKENED AND
NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. THEREFORE...
THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT TUESDAY EVENING
FOR NORTHERN INDIANA AND SOUTHERN MICHIGAN AND NORTHWESTERN OHIO.

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 4199 8552 4180 8529 4176 8530 4176 8525
      4172 8520 4147 8566 4160 8581
TIME...MOT...LOC 2234Z 236DEG 45KT 4164 8552

$$


JC

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 25, 9:02 PM EDT	Flash Flood Watch	IWX	Adams, Allen, Blackford, DeKalb, Grant, Huntington and 6 more	7 hr
Apr 25, 9:54 PM EDT	River Flood Warning	IWX	Allen	6 days
Apr 25, 9:54 PM EDT	River Flood Warning	IWX	Adams, Allen	6 days
Apr 26, 12:18 PM EDT	River Flood Warning	IWX	Fulton, Kosciusko, Marshall, Pulaski, Starke	9 days
Apr 26, 1:44 PM EDT	River Flood Watch	IWX	Carroll, White	35 hr
Apr 26, 3:22 PM EDT	Flash Flood Watch	IWX	Adams, Allen, Blackford, Cass, DeKalb, Elkhart and 15 more	37 hr
Apr 26, 4:30 PM EDT	Special Weather Statement	IWX	Pulaski	30 min
Apr 26, 5:00 PM EDT	Special Weather Statement	IWX	Pulaski	30 min
Apr 26, 5:12 PM EDT	Special Weather Statement	IWX	LaPorte	33 min
Apr 26, 5:18 PM EDT	Severe Thunderstorm Warning	IWX	LaPorte, Saint Joseph	42 min
Apr 26, 5:31 PM EDT	Special Weather Statement	IWX	Marshall	29 min
Apr 26, 5:43 PM EDT	Severe Thunderstorm Warning	IWX	Elkhart, Kosciusko, Marshall	32 min
Apr 26, 7:24 PM EDT	Special Weather Statement	IWX	Pulaski	36 min
Apr 26, 5:57 PM EDT	Severe Thunderstorm Warning	IWX	Berrien, Cass	38 min
Apr 26, 6:00 PM EDT	Special Weather Statement	IWX	Van Buren	15 min
Apr 26, 7:38 PM EDT	Special Weather Statement	IWX	Cass	37 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2011 Severe Thunderstorm Warnings in Michigan, 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.