Alert archive / Indiana / Tornado Warnings in 2017

Tornado Warning 12, NWS Indianapolis, IN

April 28, 2017Jennings County, Indiana

NWS Indianapolis, IN issued this tornado warning at Apr 28, 2017, 9:06 PM EDT for Jennings County, Indiana. It was in force for 9 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: Apr 28, 2017, 9:06 PM EDT (01:06 UTC)
Expired: Apr 28, 2017, 9:15 PM EDT
In force: 9 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Jennings County, IN

The radar

The Louisville radar (KLVX), 107 km from the middle of the area, began a volume at 01:10 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 28, 8:10 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 1.1 hours before the alert went out and 164 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1645 m above ground
0-6 km bulk shear: 76 kt
0-1 km storm-relative helicity: 419 m²/s²
0-3 km storm-relative helicity: 848 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

840 
WFUS53 KIND 290106
TORIND
INC079-290115-
/O.NEW.KIND.TO.W.0012.170429T0106Z-170429T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Indianapolis IN
906 PM EDT FRI APR 28 2017

The National Weather Service in Indianapolis has issued a

* Tornado Warning for...
  Southeastern Jennings County in southeastern Indiana...

* Until 915 PM EDT.

* At 906 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near Vernon, or 17 miles east of Seymour, 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...
  Butlerville around 910 PM EDT. 
  Nebraska around 915 PM EDT. 

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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3883 8562 3900 8569 3909 8544 3891 8545
      3891 8554 3888 8554 3888 8557 3885 8557
      3885 8561 3883 8561
TIME...MOT...LOC 0106Z 251DEG 48KT 3895 8557 

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

$$

Ryan

1 follow-up statement

770 
WWUS53 KIND 290115
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
915 PM EDT FRI APR 28 2017

INC079-290125-
/O.EXP.KIND.TO.W.0012.000000T0000Z-170429T0115Z/
Jennings IN-
915 PM EDT FRI APR 28 2017

...THE TORNADO WARNING FOR SOUTHEASTERN JENNINGS COUNTY HAS
EXPIRED...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning has been allowed to expire.

A severe thunderstorm watch remains in effect until 200 AM EDT for
southeastern Indiana.

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

LAT...LON 3883 8562 3900 8569 3909 8544 3891 8545
      3891 8554 3888 8554 3888 8557 3885 8557
      3885 8561 3883 8561
TIME...MOT...LOC 0115Z 251DEG 48KT 3899 8543 

$$

Ryan

The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 28, 8:13 PM EDT	Severe Thunderstorm Warning	IND	Decatur, Jennings	11 min
Apr 28, 8:36 PM EDT	Areal Flood Advisory	IND	Bartholomew, Decatur, Johnson, Rush, Shelby	3 hr
Apr 29, 6:18 AM EDT	Severe Thunderstorm Warning	IND	Martin	27 min
Apr 29, 7:35 AM EDT	Areal Flood Warning	IND	Bartholomew, Decatur, Jackson, Jennings, Lawrence, Martin	6 hr
Apr 29, 10:22 AM EDT	River Flood Warning	IND	Marion, Morgan	9 days
Apr 29, 10:22 AM EDT	River Flood Warning	IND	Monroe, Morgan, Owen	10 days
Apr 29, 10:22 AM EDT	River Flood Warning	IND	Monroe, Morgan, Owen	10 days
Apr 29, 10:22 AM EDT	River Flood Warning	IND	Bartholomew, Johnson, Shelby	4 days
Apr 29, 10:22 AM EDT	River Flood Warning	IND	Lawrence, Martin	15 days
Apr 29, 10:22 AM EDT	River Flood Warning	IND	Jackson, Jennings, Washington	22 hr
Apr 29, 12:36 PM EDT	River Flood Warning	IND	Johnson	26 hr
Apr 29, 1:55 PM EDT	River Flood Warning	IND	Putnam	57 hr
Apr 29, 2:51 PM EDT	River Flood Warning	IND	Delaware, Randolph	32 hr

Nearby

Tornado Warnings in Indiana, 2017 Every tornado warning in 2017 Tornadoes in 2017

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.