Alert archive / Indiana / Tornado Warnings in 2016

Tornado Warning 9, NWS Northern Indiana

August 20, 2016Allen County, Indiana

NWS Northern Indiana issued this tornado warning at Aug 20, 2016, 5:46 PM EDT for Allen County, Indiana. It was in force for 16 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 20, 2016, 5:46 PM EDT (21:46 UTC)
Expired: Aug 20, 2016, 6:02 PM EDT
In force: 16 min
Issued by: NWS Northern Indiana
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Allen County, IN

The radar

The Northern Indiana radar (KIWX), 62 km from the middle of the area, began a volume at 21:48 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 20, 5:50 PM EDT	TORNADO	2 Sse Leo-Cedarville, IN	TRAINED SPOTTER REPORTS A TORNADO ON THE GROUND AT THE INTERSECTION OF NOTESTINE AND SCHWARTZ ROAD. REPORT RELAYED BY AMATEUR RADIO.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 9.8 hours before the alert went out and 214 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: 75 J/kg
Mixed-layer CIN: -170 J/kg
Mixed-layer LCL: 1500 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 38 m²/s²
0-3 km storm-relative helicity: 50 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

472 
WFUS53 KIWX 202146
TORIWX
INC003-202215-
/O.NEW.KIWX.TO.W.0009.160820T2146Z-160820T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
546 PM EDT SAT AUG 20 2016

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA  HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN ALLEN COUNTY IN NORTHEASTERN INDIANA...

* UNTIL 615 PM EDT
    
* AT 546 PM EDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR GRABILL...OR 7 MILES NORTH OF NEW
  HAVEN...MOVING NORTHEAST AT 25 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...
  GRABILL AROUND 555 PM EDT. 

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
CUBA... HARLAN AND LEO-CEDARVILLE.

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 4116 8504 4118 8505 4126 8495 4118 8489
TIME...MOT...LOC 2146Z 239DEG 20KT 4118 8503 

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

$$

MCS

2 follow-up statements

536 
WWUS53 KIWX 202155
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
555 PM EDT SAT AUG 20 2016

INC003-202215-
/O.CON.KIWX.TO.W.0009.000000T0000Z-160820T2215Z/
ALLEN IN-
555 PM EDT SAT AUG 20 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM EDT FOR
NORTHEASTERN ALLEN COUNTY...
    
AT 554 PM EDT...A CONFIRMED TORNADO WAS LOCATED JUST SOUTHEAST OF
LEO-CEDARVILLE...OR 9 MILES NORTH OF NEW HAVEN...MOVING NORTHEAST AT
25 MPH.

HAZARD...DAMAGING TORNADO. 

SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO. 

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
NORTHEASTERN ALLEN COUNTY...INCLUDING THE FOLLOWING LOCATIONS: HARLAN
AND LEO-CEDARVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS ON THE GROUND. 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 4117 8500 4120 8503 4126 8495 4120 8491
TIME...MOT...LOC 2154Z 239DEG 20KT 4120 8498 

TORNADO...OBSERVED
HAIL...<.75IN

$$

MCS

608 
WWUS53 KIWX 202202
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
602 PM EDT SAT AUG 20 2016

INC003-202212-
/O.CAN.KIWX.TO.W.0009.000000T0000Z-160820T2215Z/
ALLEN IN-
602 PM EDT SAT AUG 20 2016

...THE TORNADO WARNING FOR NORTHEASTERN ALLEN COUNTY IS CANCELLED...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER APPEARS CAPABLE OF PRODUCING A TORNADO.
THEREFORE...THE WARNING HAS BEEN CANCELLED.

LAT...LON 4117 8500 4120 8503 4126 8495 4120 8491
TIME...MOT...LOC 2200Z 239DEG 20KT 4122 8493 

$$

MCS

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 20, 4:18 AM EDT	Beach Hazards Statement	IWX		45 hr
Aug 20, 2:56 PM EDT	Special Weather Statement	IWX	Fulton	34 min
Aug 20, 3:21 PM EDT	Special Weather Statement	IWX	Miami	24 min
Aug 20, 3:49 PM EDT	Special Weather Statement	IWX	Grant	26 min
Aug 20, 4:01 PM EDT	Special Weather Statement	IWX	Kosciusko	29 min
Aug 20, 4:04 PM EDT	Special Weather Statement	IWX	LaGrange	26 min
Aug 20, 4:16 PM EDT	Special Weather Statement	IWX	Grant	29 min
Aug 20, 4:33 PM EDT	Special Weather Statement	IWX	Blackford, Grant, Wells	42 min
Aug 20, 4:52 PM EDT	Special Weather Statement	IWX	Allen	38 min
Aug 20, 5:05 PM EDT	Tornado Warning	IWX	Wells	12 min
Aug 20, 5:21 PM EDT	Special Weather Statement	IWX	Adams, Jay	39 min

Nearby

Tornado Warnings in Indiana, 2016 Every tornado warning in 2016 Tornadoes in 2016

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.