Alert archive / Indiana / Tornado Warnings in 2017

Tornado Warning 1, NWS Northern Indiana

February 28, 2017LaPorte County, Saint Joseph County, Indiana

NWS Northern Indiana issued this tornado warning at Feb 28, 2017, 8:36 PM CST for LaPorte County, Saint Joseph County, Indiana. It was in force for 39 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: Feb 28, 2017, 8:36 PM CST (02:36 UTC)
Expired: Feb 28, 2017, 9:15 PM CST
In force: 39 min
Issued by: NWS Northern Indiana
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.5 in

Counties LaPorte County, IN, Saint Joseph County, IN

The radar

The Northern Indiana radar (KIWX), 64 km from the middle of the area, began a volume at 02:37 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
Feb 28, 6:37 PM CST	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 2.6 hours before the alert went out and 240 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: 687 J/kg
Mixed-layer CIN: -73 J/kg
Mixed-layer LCL: 887 m above ground
0-6 km bulk shear: 72 kt
0-1 km storm-relative helicity: 395 m²/s²
0-3 km storm-relative helicity: 431 m²/s²
Significant tornado parameter: 1.6
Supercell composite: 6.7

Open this sounding in Storm Lab

The text

As transmitted.

441 
WFUS53 KIWX 010236
TORIWX
INC091-141-010315-
/O.NEW.KIWX.TO.W.0001.170301T0236Z-170301T0315Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Northern Indiana
936 PM EST TUE FEB 28 2017

The National Weather Service in Northern Indiana  has issued a

* Tornado Warning for...
  Southern St. Joseph County in north central Indiana...
  East central La Porte County in northwestern Indiana...

* Until 1015 PM EST/915 PM CST/
    
* At 936 PM EST/836 PM CST/, a severe thunderstorm capable of
  producing a tornado was located near Kingsford Heights, or near La
  Porte, moving east at 45 mph.

  HAZARD...Tornado and ping pong ball size hail. 

  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...
  North Liberty around 950 PM EST. 
  Gulivoire Park and Lakeville around 1000 PM EST. 

Other locations impacted by this tornadic thunderstorm include Fish
Lake, Wyatt, Stillwell and Woodland.

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 4159 8667 4163 8616 4148 8611 4148 8629
      4149 8666
TIME...MOT...LOC 0236Z 267DEG 38KT 4155 8660 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

MARSILI

2 follow-up statements

853 
WWUS53 KIWX 010248
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
948 PM EST TUE FEB 28 2017

INC091-010257-
/O.CAN.KIWX.TO.W.0001.000000T0000Z-170301T0315Z/
La Porte IN-
948 PM EST TUE FEB 28 2017

...THE TORNADO WARNING FOR EAST CENTRAL LA PORTE 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 400 AM EST for
north central Indiana.

LAT...LON 4157 8614 4156 8628 4155 8644 4161 8645
      4163 8616
TIME...MOT...LOC 0247Z 267DEG 38KT 4156 8644 

$$

INC141-010315-
/O.CON.KIWX.TO.W.0001.000000T0000Z-170301T0315Z/
St. Joseph IN-
948 PM EST TUE FEB 28 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1015 PM EST FOR CENTRAL
ST. JOSEPH COUNTY...
    
At 947 PM EST, a severe thunderstorm capable of producing a tornado
was located over North Liberty, or 10 miles west of Gulivoire Park,
moving east at 45 mph.

HAZARD...Tornado and half dollar size hail. 

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...
  Gulivoire Park around 1000 PM EST. 

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 4157 8614 4156 8628 4155 8644 4161 8645
      4163 8616
TIME...MOT...LOC 0247Z 267DEG 38KT 4156 8644 

TORNADO...RADAR INDICATED
HAIL...1.25IN

$$

MARSILI

628 
WWUS53 KIWX 010308
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
1008 PM EST TUE FEB 28 2017

INC141-010317-
/O.EXP.KIWX.TO.W.0001.000000T0000Z-170301T0315Z/
St. Joseph IN-
1008 PM EST TUE FEB 28 2017

...THE TORNADO WARNING FOR CENTRAL ST. JOSEPH COUNTY WILL EXPIRE AT
1015 PM EST...
         
The storm which prompted the warning has moved out of the area.
Therefore the warning will be allowed to expire. However, a tornado 
warning remains in effect until 1030 PM EST for northeast St. Joseph 
county.

A severe thunderstorm watch remains in effect until 400 AM EST for
north central Indiana.

LAT...LON 4157 8614 4156 8628 4155 8644 4161 8645
      4163 8616
TIME...MOT...LOC 0307Z 267DEG 38KT 4157 8617 

$$

MARSILI

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 28, 6:32 PM CST	Special Marine Warning	IWX		118 min
Feb 28, 7:06 PM CST	Severe Thunderstorm Warning	IWX	LaPorte, Saint Joseph	54 min
Feb 28, 7:20 PM CST	Special Marine Warning	IWX		85 min
Feb 28, 7:52 PM CST	Severe Thunderstorm Warning	IWX	Elkhart, LaPorte, Saint Joseph	53 min
Feb 28, 8:15 PM CST	Severe Thunderstorm Warning	IWX	LaPorte	30 min
Feb 28, 8:45 PM CST	Severe Thunderstorm Warning	IWX	Elkhart, LaPorte, Saint Joseph	45 min
Feb 28, 9:01 PM CST	Areal Flood Advisory	IWX	Elkhart, LaPorte, Saint Joseph	6 hr
Feb 28, 9:01 PM CST	Tornado Warning	IWX	Elkhart, Saint Joseph	29 min
Feb 28, 9:09 PM CST	Severe Thunderstorm Warning	IWX	LaPorte, Saint Joseph	39 min
Feb 28, 9:17 PM CST	Flash Flood Warning	IWX	Elkhart, LaPorte, Saint Joseph	6 hr
Feb 28, 9:27 PM CST	Special Marine Warning	IWX		93 min
Feb 28, 9:29 PM CST	Tornado Warning	IWX	Elkhart, LaGrange	31 min
Feb 28, 9:52 PM CST	Tornado Warning	IWX	LaGrange, Steuben	23 min
Feb 28, 10:12 PM CST	Tornado Warning	IWX	Steuben	31 min
Feb 28, 11:18 PM CST	Special Marine Warning	IWX		87 min
Feb 28, 11:40 PM CST	Severe Thunderstorm Warning	IWX	LaPorte, Saint Joseph	65 min
Feb 28, 11:56 PM CST	Severe Thunderstorm Warning	IWX	Fulton, LaPorte, Marshall, Pulaski, Starke	49 min
Mar 1, 12:01 AM CST	Severe Thunderstorm Warning	IWX	LaPorte, Marshall, Saint Joseph, Starke	44 min
Mar 1, 12:22 AM CST	Severe Thunderstorm Warning	IWX	Pulaski, White	38 min
Mar 1, 12:30 AM CST	Severe Thunderstorm Warning	IWX	Elkhart, Kosciusko, LaGrange, Marshall, Noble, Saint Joseph	45 min
Mar 1, 12:43 AM CST	Severe Thunderstorm Warning	IWX	Fulton, Kosciusko, Marshall, Pulaski, Starke	34 min
Mar 1, 1:06 AM CST	Severe Thunderstorm Warning	IWX	Allen, DeKalb, Kosciusko, LaGrange, Noble, Steuben and 1 more	39 min
Mar 1, 1:24 AM CST	Special Weather Statement	IWX	Huntington, Miami, Wabash	51 min
Mar 1, 1:29 AM CST	Severe Thunderstorm Warning	IWX	Allen, DeKalb, Steuben, Whitley	61 min
Mar 1, 1:31 AM CST	Tornado Warning	IWX	Allen	29 min
Mar 1, 1:59 AM CST	Severe Thunderstorm Warning	IWX	Adams, Allen, Blackford, Grant, Huntington, Jay and 2 more	46 min
Mar 1, 9:54 AM CST	Wind Advisory	IWX	Adams, Allen, Blackford, Cass, DeKalb, Grant and 6 more	11 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.