Alert archive / Indiana / Tornado Warnings in 2020

Tornado Warning 4, NWS Northern Indiana

August 10, 2020Allen County, Huntington County, Whitley County, Indiana

NWS Northern Indiana issued this tornado warning at Aug 10, 2020, 7:11 PM EDT for Allen County, Huntington County, Whitley County, Indiana. It was in force for 34 min. 9 reports 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, 7:11 PM EDT (23:11 UTC)
Expired: Aug 10, 2020, 7:45 PM EDT
In force: 34 min
Issued by: NWS Northern Indiana
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Allen County, IN, Huntington County, IN, Whitley County, IN

The radar

The Northern Indiana radar (KIWX), 46 km from the middle of the area, began a volume at 23:16 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, 7:14 PM EDT	TSTM WND DMG	1 Ene Goblesville, IN	EMPTY GRAIN BIN TOPPLED. PHOTO ON TWITTER.
Aug 10, 7:16 PM EDT	TSTM WND DMG	3 Wnw Roanoke, IN	CORN KNOCKED DOWN IN A FIELD.
Aug 10, 7:19 PM EDT	TSTM WND DMG	1 Wnw Roanoke, IN	METAL ROOF PARTIALLY TAKEN OFF OF A BUILDING. TIME ESTIMATED FROM RADAR.
Aug 10, 7:19 PM EDT	TSTM WND DMG	2 N Roanoke, IN	LARGE TREES DOWN ON A PROPERTY. TIME ESTIMATED FROM RADAR.
Aug 10, 7:20 PM EDT	TSTM WND DMG	2 Sse Laud, IN	TREE DOWNED ONTO A HOUSE WITH NOTABLE DAMAGE TO THE HOUSE. TIME ESTIMATED FROM RADAR.
Aug 10, 7:23 PM EDT	TSTM WND DMG	1 Wnw Roanoke, IN	NEW BARN UNDER CONSTRUCTION SUSTAINED SIGNIFICANT ROOF AND WALL DAMAGE. PHOTOS ON TWITTER.
Aug 10, 7:30 PM EDT	TSTM WND DMG	Fort Wayne, IN	DISPATCH REPORTS TREES AND POWER LINES DOWN IN FORT WAYNE. NO SPECIFIC DETAILS.
Aug 10, 7:32 PM EDT	TSTM WND GST 69	2 S Rolling Hills, IN
Aug 10, 7:38 PM EDT	TSTM WND DMG	1 S Nine Mile, IN	SEMI BLOWN ON ITS SIDE.

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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.2 hours before the alert went out and 222 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: 86 J/kg
Mixed-layer CIN: -91 J/kg
Mixed-layer LCL: 1117 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: -5 m²/s²
0-3 km storm-relative helicity: 3 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

786 
WFUS53 KIWX 102311
TORIWX
INC003-069-183-102345-
/O.NEW.KIWX.TO.W.0004.200810T2311Z-200810T2345Z/

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

The National Weather Service in Northern Indiana has issued a

* Tornado Warning for...
  Southwestern Allen County in northeastern Indiana...
  Southern Whitley County in northeastern Indiana...
  Northern Huntington County in northeastern Indiana...

* Until 745 PM EDT.
    
* At 711 PM EDT, a severe thunderstorm capable of producing a tornado
  was located 7 miles south of Columbia City, moving east at 55 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...
  New Haven around 740 PM EDT.

Other locations impacted by this tornadic thunderstorm include Laud,
Nine Mile, Yoder, Dunfee, Poe, Aboite, Goblesville, Hessen Cassel,
Roanoke and Coesse.

This includes the following highways...
 Interstate 469 between mile markers 0 and 17, and between mile
markers 23 and 30.
 Interstate 69 in Indiana between mile markers 296 and 314.

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 4100 8564 4100 8565 4111 8564 4118 8499
      4092 8501 4092 8512
TIME...MOT...LOC 2311Z 271DEG 46KT 4105 8549 

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

$$

CR

2 follow-up statements

732 
WWUS53 KIWX 102323
SVSIWX

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

INC003-069-183-102345-
/O.CON.KIWX.TO.W.0004.000000T0000Z-200810T2345Z/
Allen IN-Whitley IN-Huntington IN-
723 PM EDT Mon Aug 10 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM EDT FOR
SOUTHWESTERN ALLEN...SOUTHEASTERN WHITLEY AND NORTHEASTERN HUNTINGTON
COUNTIES...
    
At 722 PM EDT, a severe thunderstorm capable of producing a tornado
was located 8 miles west of Fort Wayne, moving east at 55 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 tornadic thunderstorm will remain over mainly rural areas of
southwestern Allen, southeastern Whitley and northeastern Huntington
Counties, including the following locations... Nine Mile, Yoder, Poe,
Aboite, Middletown, Rolling Hills, Hessen Cassel and Roanoke.

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 4105 8541 4103 8500 4092 8501 4092 8512
      4097 8544
TIME...MOT...LOC 2322Z 271DEG 46KT 4105 8530 

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

$$

CR

913 
WWUS53 KIWX 102340
SVSIWX

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

INC003-069-183-102350-
/O.EXP.KIWX.TO.W.0004.000000T0000Z-200810T2345Z/
Allen IN-Whitley IN-Huntington IN-
740 PM EDT Mon Aug 10 2020

...THE TORNADO WARNING FOR SOUTHWESTERN ALLEN...SOUTHEASTERN WHITLEY
AND NORTHEASTERN HUNTINGTON COUNTIES WILL EXPIRE AT 745 PM EDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.

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

LAT...LON 4105 8541 4103 8500 4092 8501 4092 8512
      4097 8544
TIME...MOT...LOC 2340Z 271DEG 46KT 4105 8506 

$$

CR

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, 6:41 PM EDT	Tornado Warning	IWX	Elkhart, Kosciusko, Saint Joseph	19 min
Aug 10, 6:48 PM EDT	Severe Thunderstorm Warning	IWX	Huntington, Kosciusko, Miami, Wabash, Whitley	42 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.