Alert archive / Indiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 81, NWS Northern Indiana

August 10, 20214 counties in Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Aug 10, 2021, 11:02 PM EDT for 4 counties in Indiana. It was in force for 43 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 10, 2021, 11:02 PM EDT (03:02 UTC)
Expired: Aug 10, 2021, 11:45 PM EDT
In force: 43 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), 87 km from the middle of the area, began a volume at 03:04 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 10, 11:25 PM EDT	TSTM WND DMG	Bass Lake, IN	SEVERAL TREES AND POWERLINES DOWN. TIME ESTIMATED.

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 10, 8:38 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 3.0 hours before the alert went out and 198 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: 2608 J/kg
Mixed-layer CIN: -33 J/kg
Mixed-layer LCL: 1127 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 167 m²/s²
0-3 km storm-relative helicity: 194 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

895 
WUUS53 KIWX 110302
SVRIWX
INC049-099-131-149-110345-
/O.NEW.KIWX.SV.W.0081.210811T0302Z-210811T0345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Northern Indiana
1102 PM EDT Tue Aug 10 2021

The National Weather Service in Northern Indiana has issued a

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

* Until 1145 PM EDT/1045 PM CDT/.

* At 1102 PM EDT/1002 PM CDT/, a severe thunderstorm was located near
  Gifford, moving east at 50 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Plymouth, Rochester, Knox, Winamac, North Judson, Argos, Culver,
  Francesville, Medaryville, Pulaski, Walnut, Oak Grove, Ripley,
  Kewanna, Monterey, Leiters Ford, Lomax, Beardstown, Ober and
  English Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4124 8693 4125 8692 4127 8687 4127 8682
      4128 8679 4132 8674 4143 8621 4096 8617
      4098 8693
TIME...MOT...LOC 0302Z 264DEG 43KT 4112 8702 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

PBM

1 follow-up statement

160 
WWUS53 KIWX 110344
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
1144 PM EDT Tue Aug 10 2021

INC049-099-131-149-110354-
/O.EXP.KIWX.SV.W.0081.000000T0000Z-210811T0345Z/
Pulaski IN-Fulton IN-Starke IN-Marshall IN-
1144 PM EDT Tue Aug 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR PULASKI...WESTERN FULTON...
STARKE AND WESTERN MARSHALL COUNTIES WILL EXPIRE AT 1145 PM EDT/1045
PM CDT/...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 300 AM EDT/200 AM
CDT/ for north central and northwestern Indiana.

LAT...LON 4124 8693 4125 8692 4127 8687 4127 8682
      4128 8679 4132 8674 4143 8621 4096 8617
      4098 8693
TIME...MOT...LOC 0344Z 264DEG 43KT 4117 8637 

$$

PBM

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 10, 8:49 PM EDT	Special Marine Warning	IWX		86 min
Aug 10, 9:49 PM EDT	Special Weather Statement	IWX	LaPorte	41 min
Aug 10, 9:56 PM EDT	Severe Thunderstorm Warning	IWX	LaPorte, Saint Joseph	49 min
Aug 10, 10:18 PM EDT	Severe Thunderstorm Warning	IWX	Elkhart, LaPorte, Marshall, Saint Joseph, Starke	57 min
Aug 10, 10:42 PM EDT	Severe Thunderstorm Warning	IWX	Elkhart, LaGrange, Noble, Saint Joseph	48 min
Aug 10, 11:31 PM EDT	Special Weather Statement	IWX	Steuben	29 min
Aug 10, 11:41 PM EDT	Severe Thunderstorm Warning	IWX	Fulton, Kosciusko, Marshall, Miami, Pulaski	34 min
Aug 11, 12:05 AM EDT	Severe Thunderstorm Warning	IWX	Fulton, Huntington, Kosciusko, Miami, Wabash, Whitley	40 min
Aug 11, 12:29 AM EDT	Special Weather Statement	IWX	Huntington	31 min
Aug 11, 12:38 AM EDT	Special Weather Statement	IWX	Allen	22 min
Aug 11, 12:56 AM EDT	Special Weather Statement	IWX	Adams, Allen, Wells	49 min
Aug 11, 3:57 AM EDT	Special Weather Statement	IWX	Cass, White	33 min
Aug 11, 4:46 AM EDT	Special Weather Statement	IWX	Cass, Fulton, Miami	44 min
Aug 11, 4:59 AM EDT	Special Weather Statement	IWX	Kosciusko	46 min
Aug 11, 5:21 AM EDT	Special Weather Statement	IWX	LaPorte	39 min
Aug 11, 5:49 AM EDT	Special Weather Statement	IWX	Noble	41 min
Aug 11, 5:52 AM EDT	Special Weather Statement	IWX	LaPorte	38 min
Aug 11, 5:54 AM EDT	Special Weather Statement	IWX	Whitley	51 min
Aug 11, 11:22 AM EDT	Special Weather Statement	IWX	Starke	38 min
Aug 11, 11:36 AM EDT	Special Marine Warning	IWX		54 min
Aug 11, 12:00 PM EDT	Special Weather Statement	IWX	Kosciusko, LaPorte, Marshall, Saint Joseph, Starke	30 min
Aug 11, 12:16 PM EDT	Severe Thunderstorm Warning	IWX	Kosciusko, Marshall	29 min
Aug 11, 12:29 PM EDT	Special Weather Statement	IWX	Elkhart, Fulton, Kosciusko, LaPorte, Marshall, Pulaski and 2 more	46 min
Aug 11, 12:34 PM EDT	Special Marine Warning	IWX		56 min
Aug 11, 12:43 PM EDT	Areal Flood Advisory	IWX	Kosciusko, LaPorte, Marshall, Pulaski, Saint Joseph, Starke	3 hr
Aug 11, 12:47 PM EDT	Severe Thunderstorm Warning	IWX	Elkhart, Fulton, Kosciusko, Marshall, Saint Joseph	43 min
Aug 11, 12:54 PM EDT	Severe Thunderstorm Warning	IWX	Cass, Fulton, Kosciusko, Miami, Pulaski, Wabash	36 min
Aug 11, 1:10 PM EDT	Special Weather Statement	IWX	Elkhart, LaGrange	50 min
Aug 11, 1:17 PM EDT	Severe Thunderstorm Warning	IWX	Allen, DeKalb, Elkhart, Huntington, Kosciusko, Miami and 3 more	43 min
Aug 11, 1:29 PM EDT	Special Marine Warning	IWX		46 min
Aug 11, 1:39 PM EDT	Severe Thunderstorm Warning	IWX	LaGrange, Steuben	36 min
Aug 11, 1:48 PM EDT	Severe Thunderstorm Warning	IWX	Adams, Allen, DeKalb, Huntington, Jay, Wells	27 min
Aug 11, 2:02 PM EDT	Severe Thunderstorm Warning	IWX	DeKalb, Steuben	43 min
Aug 11, 2:05 PM EDT	Severe Thunderstorm Warning	IWX	Blackford, Grant, Huntington, Jay, Wells	55 min
Aug 11, 2:14 PM EDT	Severe Thunderstorm Warning	IWX	Adams, Allen, DeKalb, Huntington, Jay, Wells	46 min
Aug 11, 3:01 PM EDT	Severe Thunderstorm Warning	IWX	Jay	29 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.