Alert archive / Indiana / Tornado Warnings in 2017

Tornado Warning 25, NWS Northern Indiana

July 10, 2017Cass County, Indiana

NWS Northern Indiana issued this tornado warning at Jul 10, 2017, 11:36 PM EDT for Cass 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: Jul 10, 2017, 11:36 PM EDT (03:36 UTC)
Expired: Jul 11, 2017, 12:15 AM EDT
In force: 39 min
Issued by: NWS Northern Indiana
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Cass County, IN

The radar

The Indianapolis radar (KIND), 97 km from the middle of the area, began a volume at 03:34 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
Jul 10, 4:58 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 3.6 hours before the alert went out and 202 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: 2755 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 1493 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 135 m²/s²
0-3 km storm-relative helicity: 236 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 14.2

Open this sounding in Storm Lab

The text

As transmitted.

981 
WFUS53 KIWX 110336
TORIWX
INC017-110415-
/O.NEW.KIWX.TO.W.0025.170711T0336Z-170711T0415Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Northern Indiana
1136 PM EDT MON JUL 10 2017

The National Weather Service in Northern Indiana  has issued a

* Tornado Warning for...
  Southeastern Cass County in north central Indiana...

* Until 1215 AM EDT
    
* At 1136 PM EDT, a severe thunderstorm capable of producing a
  tornado was located 9 miles southwest of Walton, or 13 miles south
  of Logansport, moving east at 30 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
  southeastern Cass County, including the following locations:
  Galveston.

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.

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

&&

LAT...LON 4056 8637 4062 8637 4061 8617 4056 8616
TIME...MOT...LOC 0336Z 273DEG 31KT 4056 8638 

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

$$

SLL

2 follow-up statements

725 
WWUS53 KIWX 110353
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
1153 PM EDT MON JUL 10 2017

INC017-110415-
/O.CON.KIWX.TO.W.0025.000000T0000Z-170711T0415Z/
Cass IN-
1153 PM EDT MON JUL 10 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1215 AM EDT FOR
SOUTHEASTERN CASS COUNTY...
    
At 1152 PM EDT, a severe thunderstorm capable of producing a tornado
was located 8 miles southwest of Walton, or 10 miles northwest of
Kokomo, moving east at 15 mph.

HAZARD...Tornado and quarter 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. 

Locations impacted include...
Galveston.

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.

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

&&

LAT...LON 4056 8637 4059 8637 4059 8617 4056 8616
TIME...MOT...LOC 0352Z 270DEG 15KT 4056 8631 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

SLL

525 
WWUS53 KIWX 110413
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
1213 AM EDT TUE JUL 11 2017

INC017-110422-
/O.EXP.KIWX.TO.W.0025.000000T0000Z-170711T0415Z/
Cass IN-
1213 AM EDT TUE JUL 11 2017

...THE TORNADO WARNING FOR SOUTHEASTERN CASS COUNTY WILL EXPIRE AT
1215 AM EDT...
        
The storm which prompted the warning has weakened below severe 
limits. Therefore, the warning will be allowed to expire. However 
heavy rain is still possible with this thunderstorm.

LAT...LON 4056 8637 4059 8637 4059 8617 4056 8616
TIME...MOT...LOC 0412Z 273DEG 31KT 4055 8611 

$$

NWS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 10, 8:31 PM EDT	Tornado Warning	IWX	Wabash	44 min
Jul 10, 8:32 PM EDT	Tornado Warning	IWX	Cass	26 min
Jul 10, 8:34 PM EDT	Tornado Warning	IWX	Miami	27 min
Jul 10, 8:42 PM EDT	Tornado Warning	IWX	Huntington	48 min
Jul 10, 9:06 PM EDT	Tornado Warning Tornado observedConsiderable damage threat	IWX	Huntington, Wabash	24 min
Jul 10, 9:33 PM EDT	River Flood Warning	IWX	Fulton, Kosciusko, Marshall, Pulaski, Starke	5 days
Jul 10, 9:33 PM EDT	River Flood Warning	IWX	LaPorte, Saint Joseph, Starke	3 days
Jul 10, 9:33 PM EDT	River Flood Warning	IWX	Adams, Allen	56 hr
Jul 10, 10:12 PM EDT	Areal Flood Warning	IWX	Cass, Miami	6 hr
Jul 10, 11:12 PM EDT	Special Weather Statement	IWX	Cass, Grant, Miami	48 min
Jul 11, 12:44 AM EDT	Areal Flood Warning	IWX	Allen	6 hr
Jul 11, 1:11 AM EDT	Areal Flood Warning	IWX	Cass	3 hr
Jul 11, 1:15 AM EDT	Special Weather Statement	IWX	Miami, Wabash	30 min
Jul 11, 4:14 AM EDT	Areal Flood Warning	IWX	Cass, Miami	27 hr
Jul 11, 9:35 AM EDT	Flash Flood Watch	IWX	Adams, Blackford, Cass, Grant, Huntington, Jay and 4 more	7 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.