Alert archive / Indiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 126, NWS Northern Indiana

December 11, 20214 counties in Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Dec 11, 2021, 12:41 AM EST for 4 counties in Indiana. It was in force for 34 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: Dec 11, 2021, 12:41 AM EST (05:41 UTC)
Expired: Dec 11, 2021, 1:15 AM EST
In force: 34 min
Issued by: NWS Northern Indiana
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Fulton County, IN, Kosciusko County, IN, Noble County, IN, Whitley County, IN

The radar

The Northern Indiana radar (KIWX), 25 km from the middle of the area, began a volume at 05:40 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
Dec 11, 12:58 AM EST	TSTM WND DMG	1 Ese Big Barbee Lake, IN	EVIDENCE OF A TREE DOWNED ACROSS BOTH LANES OF SR 13 FROM EARLY MORNING STORMS. TIME ESTIMATED FROM RADAR.

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
Dec 11, 12:20 AM EST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 5.7 hours before the alert went out and 253 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: 519 m above ground
0-6 km bulk shear: 71 kt
0-1 km storm-relative helicity: 325 m²/s²
0-3 km storm-relative helicity: 431 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

744 
WUUS53 KIWX 110541
SVRIWX
INC049-085-113-183-110615-
/O.NEW.KIWX.SV.W.0126.211211T0541Z-211211T0615Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Northern Indiana
1241 AM EST Sat Dec 11 2021

The National Weather Service in Northern Indiana has issued a

* Severe Thunderstorm Warning for...
  Southwestern Noble County in northeastern Indiana...
  Northwestern Whitley County in northeastern Indiana...
  East central Fulton County in north central Indiana...
  Kosciusko County in north central Indiana...

* Until 115 AM EST.

* At 1241 AM EST, severe thunderstorms were located along a line
  extending from near Warsaw to near Akron, moving east at 50 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Warsaw, Winona Lake, Akron, North Webster, Pierceton, Etna,
  Leesburg, Cromwell, Claypool, Larwill, Burket, Sidney, Big Barbee
  Lake, Ridinger Lake, Monoquet, Collamer, Irish Lake, Beaver Dam
  Lake, Sevastopol and Beaver Dam.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 600 AM EST for north central
and northeastern Indiana.

For your protection move to an interior room on the lowest floor of a
building.

A Tornado Watch remains in effect until 600 AM EST for north central
and northeastern Indiana.

&&

LAT...LON 4105 8568 4104 8594 4104 8613 4134 8587
      4145 8541 4103 8568
TIME...MOT...LOC 0541Z 253DEG 44KT 4130 8587 4105 8609 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

FISHER

2 follow-up statements

012 
WWUS53 KIWX 110558
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
1258 AM EST Sat Dec 11 2021

INC049-110607-
/O.CAN.KIWX.SV.W.0126.000000T0000Z-211211T0615Z/
Fulton IN-
1258 AM EST Sat Dec 11 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL FULTON COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 600 AM EST for north central
and northeastern Indiana.

LAT...LON 4105 8568 4104 8594 4107 8594 4137 8575
      4145 8541 4103 8568
TIME...MOT...LOC 0557Z 253DEG 44KT 4135 8564 4110 8586 

$$

INC085-113-183-110615-
/O.CON.KIWX.SV.W.0126.000000T0000Z-211211T0615Z/
Noble IN-Whitley IN-Kosciusko IN-
1258 AM EST Sat Dec 11 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 AM EST
FOR SOUTHWESTERN NOBLE...NORTHWESTERN WHITLEY AND EASTERN KOSCIUSKO
COUNTIES...

At 1257 AM EST, severe thunderstorms were located along a line
extending from near North Webster to 8 miles northwest of North
Manchester, moving east at 50 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Warsaw, Winona Lake, North Webster, Pierceton, Etna, Cromwell,
Claypool, Larwill, Sidney, Big Barbee Lake, Ridinger Lake, Collamer,
Irish Lake, Bear Lake, Little Chapman Lake, Wilmot, James Lake, Goose
Lake, Knapp Lake and Loon Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 600 AM EST for north central
and northeastern Indiana.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4105 8568 4104 8594 4107 8594 4137 8575
      4145 8541 4103 8568
TIME...MOT...LOC 0557Z 253DEG 44KT 4135 8564 4110 8586 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

FISHER

444 
WWUS53 KIWX 110609
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
109 AM EST Sat Dec 11 2021

INC085-113-183-110619-
/O.EXP.KIWX.SV.W.0126.000000T0000Z-211211T0615Z/
Noble IN-Whitley IN-Kosciusko IN-
109 AM EST Sat Dec 11 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN NOBLE...
NORTHWESTERN WHITLEY AND EASTERN KOSCIUSKO COUNTIES WILL EXPIRE AT
115 AM EST...
    
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning will
be allowed to expire.  However gusty winds and heavy rain are still
possible with these thunderstorms.

A Tornado Watch remains in effect until 600 AM EST for north central
and northeastern Indiana.

LAT...LON 4105 8568 4104 8594 4107 8594 4137 8575
      4145 8541 4103 8568
TIME...MOT...LOC 0609Z 253DEG 44KT 4139 8547 4114 8569 

$$

FISHER

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 10, 10:58 PM EST	Severe Thunderstorm Warning	IWX	Pulaski, White	32 min
Dec 10, 11:18 PM EST	Severe Thunderstorm Warning	IWX	LaPorte, Starke	27 min
Dec 10, 11:22 PM EST	Severe Thunderstorm Warning	IWX	Fulton, Marshall, Pulaski, Starke	38 min
Dec 10, 11:23 PM EST	Special Marine Warning	IWX		37 min
Dec 10, 11:44 PM EST	Severe Thunderstorm Warning	IWX	Fulton, Marshall, Pulaski, Starke	31 min
Dec 10, 11:47 PM EST	Severe Thunderstorm Warning	IWX	LaPorte, Saint Joseph	28 min
Dec 10, 11:49 PM EST	Severe Thunderstorm Warning	IWX	Cass, Fulton, Pulaski, White	26 min
Dec 11, 12:07 AM EST	Severe Thunderstorm Warning	IWX	Marshall	23 min
Dec 11, 12:16 AM EST	Areal Flood Advisory	IWX	LaPorte, Marshall, Saint Joseph, Starke	3 hr
Dec 11, 12:19 AM EST	Severe Thunderstorm Warning	IWX	Cass, Fulton, Grant, Miami, Pulaski, Wabash and 1 more	56 min
Dec 11, 12:32 AM EST	Special Weather Statement	IWX	Kosciusko, Noble, Whitley	28 min
Dec 11, 1:11 AM EST	Severe Thunderstorm Warning	IWX	Blackford, Grant, Huntington, Wabash, Wells	49 min
Dec 11, 1:15 AM EST	Special Weather Statement	IWX	Allen, DeKalb, Huntington, Wabash, Whitley	30 min
Dec 11, 1:33 AM EST	Severe Thunderstorm Warning	IWX	Adams, Blackford, Jay, Wells	34 min
Dec 11, 2:43 AM EST	Special Weather Statement	IWX	Jay	32 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2021 Every severe thunderstorm warning in 2021

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.