Alert archive / Indiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 57, NWS Northern Indiana

July 7, 20214 counties in Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Jul 7, 2021, 7:26 PM EDT for 4 counties in Indiana. It was in force for 49 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: Jul 7, 2021, 7:26 PM EDT (23:26 UTC)
Expired: Jul 7, 2021, 8:15 PM EDT
In force: 49 min
Issued by: NWS Northern Indiana
Area: Storm-based polygon
Hail: 1.0 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), 50 km from the middle of the area, began a volume at 23:30 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 12:00Z, 11.4 hours before the alert went out and 231 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: 142 J/kg
Mixed-layer CIN: -37 J/kg
Mixed-layer LCL: 1432 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 22 m²/s²
0-3 km storm-relative helicity: 23 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

651 
WUUS53 KIWX 072326
SVRIWX
INC049-099-131-149-080015-
/O.NEW.KIWX.SV.W.0057.210707T2326Z-210708T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Northern Indiana
726 PM EDT Wed Jul 7 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 815 PM EDT/715 PM CDT/.

* At 725 PM EDT/625 PM CDT/, a severe thunderstorm was located near
  Culver, or 7 miles southeast of Knox, moving east at 40 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Plymouth, Knox, Bourbon, Argos, Culver, Walnut, Tippecanoe, Oak
  Grove, Monterey, Leiters Ford, Beardstown, Ober, Hibbard, Winona,
  Delong, Old Tip Town, Donaldson, Tiosa, Talma and Twin Lakes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4135 8663 4140 8607 4136 8606 4117 8605
      4117 8608 4110 8608 4112 8664
TIME...MOT...LOC 2325Z 261DEG 34KT 4124 8649 

HAIL...1.00IN
WIND...60MPH
 
$$

MCD

2 follow-up statements

866 
WWUS53 KIWX 072346
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
746 PM EDT Wed Jul 7 2021

INC131-149-072355-
/O.CAN.KIWX.SV.W.0057.000000T0000Z-210708T0015Z/
Pulaski IN-Starke IN-
746 PM EDT Wed Jul 7 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.

A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
north central Indiana.

LAT...LON 4121 8647 4137 8645 4140 8607 4136 8606
      4117 8605 4117 8608 4110 8608 4112 8647
TIME...MOT...LOC 2345Z 266DEG 30KT 4125 8631 

$$

INC049-099-080015-
/O.CON.KIWX.SV.W.0057.000000T0000Z-210708T0015Z/
Fulton IN-Marshall IN-
746 PM EDT Wed Jul 7 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM EDT
FOR NORTHWESTERN FULTON AND MARSHALL COUNTIES...

At 745 PM EDT, a severe thunderstorm was located near Argos, or near
Plymouth, moving east at 35 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Plymouth, Bourbon, Argos, Culver, Walnut, Tippecanoe, Leiters Ford,
Twin Lakes, Inwood, Rutland, Burr Oak, Maxinkuckee, Hibbard, Delong,
Old Tip Town, Donaldson, Tiosa and Talma.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4121 8647 4137 8645 4140 8607 4136 8606
      4117 8605 4117 8608 4110 8608 4112 8647
TIME...MOT...LOC 2345Z 266DEG 30KT 4125 8631 

HAIL...1.00IN
WIND...60MPH
 
$$

MCD

357 
WWUS53 KIWX 080010
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
810 PM EDT Wed Jul 7 2021

INC049-099-080019-
/O.EXP.KIWX.SV.W.0057.000000T0000Z-210708T0015Z/
Fulton IN-Marshall IN-
810 PM EDT Wed Jul 7 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN FULTON AND
MARSHALL COUNTIES WILL EXPIRE AT 815 PM EDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds and heavy rain are still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
north central Indiana.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Northern Indiana.

LAT...LON 4121 8647 4137 8645 4140 8607 4136 8606
      4117 8605 4117 8608 4110 8608 4112 8647
TIME...MOT...LOC 0009Z 262DEG 27KT 4125 8616 

$$

MCD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 7, 12:18 PM EDT	Special Weather Statement	IWX	Adams	27 min
Jul 7, 12:40 PM EDT	Special Weather Statement	IWX	Jay	50 min
Jul 7, 12:42 PM EDT	Special Weather Statement	IWX	Steuben	48 min
Jul 7, 1:10 PM EDT	Areal Flood Advisory	IWX	DeKalb, LaGrange, Noble, Steuben	3 hr
Jul 7, 2:23 PM EDT	Special Weather Statement	IWX	LaPorte	37 min
Jul 7, 3:00 PM EDT	Special Weather Statement	IWX	LaGrange	30 min
Jul 7, 3:09 PM EDT	Special Weather Statement	IWX	Noble	36 min
Jul 7, 3:18 PM EDT	Areal Flood Advisory	IWX	Elkhart, Kosciusko, LaGrange, Noble	117 min
Jul 7, 3:43 PM EDT	Special Weather Statement	IWX	Miami, Wabash	32 min
Jul 7, 4:19 PM EDT	Special Weather Statement	IWX	Fulton	26 min
Jul 7, 4:29 PM EDT	Special Weather Statement	IWX	Whitley	31 min
Jul 7, 4:30 PM EDT	Special Weather Statement	IWX	Elkhart	45 min
Jul 7, 4:41 PM EDT	Special Weather Statement	IWX	Grant, Huntington, Wells	34 min
Jul 7, 4:43 PM EDT	Special Weather Statement	IWX	Miami	47 min
Jul 7, 4:55 PM EDT	Special Weather Statement	IWX	Marshall	35 min
Jul 7, 5:29 PM EDT	Special Weather Statement	IWX	Kosciusko, LaGrange	31 min
Jul 7, 5:54 PM EDT	Severe Thunderstorm Warning	IWX	Allen	51 min
Jul 7, 6:10 PM EDT	Special Weather Statement	IWX	Noble	50 min
Jul 7, 6:13 PM EDT	Areal Flood Advisory	IWX	Elkhart, Kosciusko, Noble, Whitley	3 hr
Jul 7, 6:54 PM EDT	Special Weather Statement	IWX	Starke	51 min
Jul 7, 7:56 PM EDT	Special Weather Statement	IWX	Fulton	49 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.