Alert archive / Indiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 120, NWS Northern Indiana

December 10, 20214 counties in Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Dec 10, 2021, 11:22 PM EST for 4 counties in Indiana. It was in force for 38 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Dec 10, 2021, 11:22 PM EST (04:22 UTC)
Expired
Dec 11, 2021, 12:00 AM EST
In force
38 min
Issued by
NWS Northern Indiana
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Fulton County, IN, Marshall County, IN, Pulaski County, IN, Starke County, IN

The radar

The Northern Indiana radar (KIWX), 55 km from the middle of the area, began a volume at 04:21 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.

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 4.4 hours before the alert went out and 229 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-pSkew-T log-p diagram, Lincoln, IL at 00:00Z on 2021-12-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 119 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 00:00Z on 2021-12-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 341 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
119 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
662 m above ground
0-6 km bulk shear
73 kt
0-1 km storm-relative helicity
341 m²/s²
0-3 km storm-relative helicity
357 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

784 
WUUS53 KIWX 110422
SVRIWX
INC049-099-131-149-110500-
/O.NEW.KIWX.SV.W.0120.211211T0422Z-211211T0500Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Northern Indiana
1122 PM EST Fri Dec 10 2021

The National Weather Service in Northern Indiana has issued a

* Severe Thunderstorm Warning for...
  Northeastern Pulaski County in northwestern Indiana...
  Northwestern Fulton County in north central Indiana...
  Southeastern Starke County in northwestern Indiana...
  Marshall County in north central Indiana...

* Until midnight EST/1100 PM CST/.

* At 1122 PM EST/1022 PM CST/, a severe thunderstorm was located 
  near Culver, or 11 miles northeast of Winamac, moving northeast at 
  80 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Plymouth, Bourbon, Argos, Culver, Koontz Lake, Oak Grove, Monterey,
  Beardstown, Ober, Twin Lakes, Inwood, Rutland, Burr Oak,
  Maxinkuckee, Tyner, Hibbard, Winona, Delong, Donaldson and
  Linkville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4148 8645 4139 8606 4131 8606 4109 8648
      4114 8663
TIME...MOT...LOC 0422Z 217DEG 74KT 4118 8646 

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

$$

MARSILI
1 follow-up statement
082 
WWUS53 KIWX 110437
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
1137 PM EST Fri Dec 10 2021

INC131-149-110446-
/O.CAN.KIWX.SV.W.0120.000000T0000Z-211211T0500Z/
Pulaski IN-Starke IN-
1137 PM EST Fri Dec 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN PULASKI AND
SOUTHEASTERN STARKE COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 4119 8646 4144 8628 4139 8606 4131 8606
      4110 8647 4114 8647
TIME...MOT...LOC 0436Z 226DEG 74KT 4137 8618 

$$

INC049-099-110500-
/O.CON.KIWX.SV.W.0120.000000T0000Z-211211T0500Z/
Fulton IN-Marshall IN-
1137 PM EST Fri Dec 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EST
FOR NORTHWESTERN FULTON AND CENTRAL MARSHALL COUNTIES...

At 1136 PM EST, a severe thunderstorm was located near Bremen, moving
northeast at 80 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Plymouth, Bourbon, Argos, Culver, Hibbard, Twin Lakes, Inwood,
Delong, Rutland, Linkville, Lake Of The Woods and Maxinkuckee.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4119 8646 4144 8628 4139 8606 4131 8606
      4110 8647 4114 8647
TIME...MOT...LOC 0436Z 226DEG 74KT 4137 8618 

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

$$

MARSILI

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 10, 10:58 PM ESTSevere Thunderstorm WarningIWXPulaski, White32 min
Dec 10, 11:18 PM ESTSevere Thunderstorm WarningIWXLaPorte, Starke27 min
Dec 10, 11:23 PM ESTSpecial Marine WarningIWX37 min
Dec 10, 11:44 PM ESTSevere Thunderstorm WarningIWXFulton, Marshall, Pulaski, Starke31 min
Dec 10, 11:47 PM ESTSevere Thunderstorm WarningIWXLaPorte, Saint Joseph28 min
Dec 10, 11:49 PM ESTSevere Thunderstorm WarningIWXCass, Fulton, Pulaski, White26 min
Dec 11, 12:07 AM ESTSevere Thunderstorm WarningIWXMarshall23 min
Dec 11, 12:16 AM ESTAreal Flood AdvisoryIWXLaPorte, Marshall, Saint Joseph, Starke3 hr
Dec 11, 12:19 AM ESTSevere Thunderstorm WarningIWXCass, Fulton, Grant, Miami, Pulaski, Wabash and 1 more56 min
Dec 11, 12:32 AM ESTSpecial Weather StatementIWXKosciusko, Noble, Whitley28 min
Dec 11, 12:41 AM ESTSevere Thunderstorm WarningIWXFulton, Kosciusko, Noble, Whitley34 min
Dec 11, 1:11 AM ESTSevere Thunderstorm WarningIWXBlackford, Grant, Huntington, Wabash, Wells49 min
Dec 11, 1:15 AM ESTSpecial Weather StatementIWXAllen, DeKalb, Huntington, Wabash, Whitley30 min
Dec 11, 1:33 AM ESTSevere Thunderstorm WarningIWXAdams, Blackford, Jay, Wells34 min
Dec 11, 2:43 AM ESTSpecial Weather StatementIWXJay32 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2021Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.