Alert archive / Indiana / Tornado Warnings in 2020

Tornado Warning 3, NWS Northern Indiana

August 10, 2020Elkhart County, Kosciusko County, Saint Joseph County, Indiana

NWS Northern Indiana issued this tornado warning at Aug 10, 2020, 6:41 PM EDT for Elkhart County, Kosciusko County, Saint Joseph County, Indiana. It was in force for 19 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, 2020, 6:41 PM EDT (22:41 UTC)
Expired: Aug 10, 2020, 7:00 PM EDT
In force: 19 min
Issued by: NWS Northern Indiana
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Elkhart County, IN, Kosciusko County, IN, Saint Joseph County, IN

The radar

The Northern Indiana radar (KIWX), 23 km from the middle of the area, began a volume at 22:39 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, 6:44 PM EDT	TSTM WND DMG	1 N Nappanee, IN	SEVERAL LARGE TREES DOWN IN NAPPANEE. 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
Aug 10, 4:26 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 10.7 hours before the alert went out and 248 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: 350 J/kg
Mixed-layer CIN: -98 J/kg
Mixed-layer LCL: 1133 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: -3 m²/s²
0-3 km storm-relative helicity: 19 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

528 
WFUS53 KIWX 102241
TORIWX
INC039-085-141-102300-
/O.NEW.KIWX.TO.W.0003.200810T2241Z-200810T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Northern Indiana
641 PM EDT Mon Aug 10 2020

The National Weather Service in Northern Indiana has issued a

* Tornado Warning for...
  Southern Elkhart County in north central Indiana...
  Southeastern St. Joseph County in north central Indiana...
  Northeastern Kosciusko County in north central Indiana...

* Until 700 PM EDT.
    
* At 640 PM EDT, a severe thunderstorm capable of producing a tornado
  was located over Wakarusa, or near Nappanee, moving east at 50 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Milford and New Paris around 650 PM EDT.
  Goshen around 655 PM EDT.
  Syracuse and Millersburg around 700 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Southwest, Foraker, Gravelton, Locke, Benton, Oakwood Park and
Waterford Mills.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4136 8572 4146 8606 4148 8606 4148 8613
      4155 8612 4164 8567
TIME...MOT...LOC 2240Z 270DEG 43KT 4150 8601 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

CR

2 follow-up statements

693 
WWUS53 KIWX 102250
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
650 PM EDT Mon Aug 10 2020

INC141-102259-
/O.CAN.KIWX.TO.W.0003.000000T0000Z-200810T2300Z/
St. Joseph IN-
650 PM EDT Mon Aug 10 2020

...THE TORNADO WARNING FOR SOUTHEASTERN ST. JOSEPH COUNTY IS
CANCELLED...
    
The tornadic 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 midnight EDT for
north central Indiana.

LAT...LON 4136 8572 4146 8595 4154 8595 4164 8567
TIME...MOT...LOC 2249Z 263DEG 43KT 4150 8586 

$$

INC039-085-102300-
/O.CON.KIWX.TO.W.0003.000000T0000Z-200810T2300Z/
Elkhart IN-Kosciusko IN-
650 PM EDT Mon Aug 10 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM EDT FOR
SOUTHEASTERN ELKHART AND NORTHEASTERN KOSCIUSKO COUNTIES...
    
At 649 PM EDT, a severe thunderstorm capable of producing a tornado
was located over New Paris, or near Goshen, moving east at 50 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Syracuse around 655 PM EDT.
  Millersburg around 700 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Southwest, Foraker, Benton, Oakwood Park and Waterford Mills.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4136 8572 4146 8595 4154 8595 4164 8567
TIME...MOT...LOC 2249Z 263DEG 43KT 4150 8586 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

CR

764 
WWUS53 KIWX 102258
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
658 PM EDT Mon Aug 10 2020

INC039-085-102308-
/O.EXP.KIWX.TO.W.0003.000000T0000Z-200810T2300Z/
Elkhart IN-Kosciusko IN-
658 PM EDT Mon Aug 10 2020

...THE TORNADO WARNING FOR SOUTHEASTERN ELKHART AND NORTHEASTERN
KOSCIUSKO COUNTIES WILL EXPIRE AT 700 PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with this thunderstorm.

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

LAT...LON 4136 8572 4146 8595 4154 8595 4164 8567
TIME...MOT...LOC 2258Z 270DEG 43KT 4150 8575 

$$

Brown

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 10, 4:03 PM EDT	Special Marine Warning	IWX		117 min
Aug 10, 4:25 PM EDT	Beach Hazards Statement	IWX		19 hr
Aug 10, 4:25 PM EDT	Lakeshore Flood Warning	IWX		19 hr
Aug 10, 4:38 PM EDT	Small Craft Advisory	IWX		12 hr
Aug 10, 5:19 PM EDT	Severe Thunderstorm Warning	IWX	LaPorte, Marshall, Saint Joseph, Starke	71 min
Aug 10, 5:22 PM EDT	Severe Thunderstorm Warning	IWX	Cass, Fulton, Miami, Pulaski, Starke, White	98 min
Aug 10, 5:48 PM EDT	Special Marine Warning	IWX		117 min
Aug 10, 6:24 PM EDT	Severe Thunderstorm Warning	IWX	Elkhart, Fulton, Kosciusko, LaGrange, Marshall, Noble and 2 more	66 min
Aug 10, 6:38 PM EDT	Tornado Warning	IWX	Elkhart, Kosciusko, Marshall, Noble, Whitley	22 min
Aug 10, 6:48 PM EDT	Severe Thunderstorm Warning	IWX	Huntington, Kosciusko, Miami, Wabash, Whitley	42 min
Aug 10, 7:11 PM EDT	Tornado Warning	IWX	Allen, Huntington, Whitley	34 min
Aug 10, 7:18 PM EDT	Severe Thunderstorm Warning	IWX	Adams, Allen, DeKalb, Huntington, Noble, Wells and 1 more	42 min
Aug 10, 7:22 PM EDT	Special Weather Statement	IWX	Steuben	38 min
Aug 10, 7:25 PM EDT	Special Weather Statement	IWX	Blackford, Wells	35 min
Aug 10, 7:51 PM EDT	Severe Thunderstorm Warning	IWX	Adams, Allen	54 min

Nearby

Tornado Warnings in Indiana, 2020 Every tornado warning in 2020 Tornadoes in 2020

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.