Alert archive / Indiana / Tornado Warnings in 2013

Tornado Warning 17, NWS Indianapolis, IN

August 31, 2013Martin County, Indiana

NWS Indianapolis, IN issued this tornado warning at Aug 31, 2013, 10:17 PM EDT for Martin County, Indiana. It was in force for 28 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: Aug 31, 2013, 10:17 PM EDT (02:17 UTC)
Expired: Aug 31, 2013, 10:45 PM EDT
In force: 28 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Martin County, IN

The radar

The Evansville,IN radar (KVWX), 99 km from the middle of the area, began a volume at 02:20 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
Aug 31, 4:43 PM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 2.3 hours before the alert went out and 213 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: 3495 J/kg
Mixed-layer CIN: -17 J/kg
Mixed-layer LCL: 1010 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 117 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

622 
WFUS53 KIND 010217
TORIND
INC101-010245-
/O.NEW.KIND.TO.W.0017.130901T0217Z-130901T0245Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1017 PM EDT SAT AUG 31 2013

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN MARTIN COUNTY IN SOUTHWEST INDIANA...

* UNTIL 1045 PM EDT

* AT 1013 PM EDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 13 MILES SOUTH OF BLOOMFIELD...AND MOVING EAST
  AT 30 MPH.

  HAZARD...TORNADO.

  SOURCE...RADAR INDICATED ROTATION.

  IMPACT...MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE TO
           ROOFS...WINDOWS AND VEHICLES WILL OCCUR. FLYING DEBRIS
           WILL BE DEADLY TO PEOPLE AND ANIMALS. TREE DAMAGE IS
           LIKELY.

* LOCATIONS IMPACTED INCLUDE...
  INDIAN SPRINGS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3868 8668 3877 8692 3881 8692 3882 8691
      3889 8691 3890 8690 3890 8668
TIME...MOT...LOC 0218Z 285DEG 27KT 3883 8687

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

$$

KOCH

1 follow-up statement

197 
WWUS53 KIND 010232
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1032 PM EDT SAT AUG 31 2013

INC101-010243-
/O.CAN.KIND.TO.W.0017.000000T0000Z-130901T0245Z/
MARTIN IN-
1032 PM EDT SAT AUG 31 2013

...THE TORNADO WARNING FOR NORTHERN MARTIN COUNTY IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

LAT...LON 3868 8668 3877 8692 3881 8692 3882 8691
      3889 8691 3890 8690 3890 8668
TIME...MOT...LOC 0233Z 285DEG 27KT 3880 8673

$$

KOCH

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 31, 9:47 PM EDT	Severe Thunderstorm Warning	IND	Greene, Lawrence, Monroe	28 min
Sep 1, 12:04 AM EDT	Severe Thunderstorm Warning	IND	Daviess, Knox	41 min
Sep 1, 2:11 AM EDT	Areal Flood Warning	IND	Daviess	6 hr

Nearby

Tornado Warnings in Indiana, 2013 Every tornado warning in 2013 Tornadoes in 2013

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.