Alert archive / Indiana / Tornado Warnings in 2012

Tornado Warning 20, NWS Wilmington, OH

March 23, 2012Ohio County, Switzerland County, Indiana

NWS Wilmington, OH issued this tornado warning at Mar 23, 2012, 4:37 PM EDT for Ohio County, Switzerland County, Indiana. It was in force for 23 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: Mar 23, 2012, 4:37 PM EDT (20:37 UTC)
Expired: Mar 23, 2012, 5:00 PM EDT
In force: 23 min
Issued by: NWS Wilmington, OH
Area: Storm-based polygon

Counties Ohio County, IN, Switzerland County, IN

The radar

The Cincinnati radar (KILN), 113 km from the middle of the area, began a volume at 20:40 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
Mar 23, 4:39 PM EDT	TORNADO	2 Nnw Center Square, IN	REPORT OF A BRIEF TORNADO TOUCHDOWN IN AN OPEN FIELD NORTH OF CENTER SQUARE. TORNADO THEN LIFTED AND THE FUNNEL CLOUD CONTINUED MOVING NORTHEAST.

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

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.6 hours before the alert went out and 115 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: 233 J/kg
Mixed-layer CIN: -53 J/kg
Mixed-layer LCL: 1093 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: 82 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

257 
WFUS51 KILN 232037
TORILN
INC115-155-232100-
/O.NEW.KILN.TO.W.0020.120323T2037Z-120323T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
437 PM EDT FRI MAR 23 2012

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

* TORNADO WARNING FOR...
  OHIO COUNTY IN SOUTHEAST INDIANA...
  SWITZERLAND COUNTY IN SOUTHEAST INDIANA...

* UNTIL 500 PM EDT.

* AT 436 PM EDT...RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF
  PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR CENTER
  SQUARE...MOVING NORTHEAST AT 25 MPH.

* THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF OHIO AND
  SWITZERLAND COUNTIES...INCLUDING ALLENSVILLE...EAST ENTERPRISE...
  ABERDEEN...PATE...HARTFORD AND MILTON.

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.

PLEASE REPORT TORNADOES...FUNNEL CLOUDS...STRONG WINDS OR HAIL TO THE
NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...877-633-6772...WHEN
YOU CAN DO SO SAFELY.

&&

LAT...LON 3898 8503 3898 8502 3898 8500 3899 8500
      3900 8498 3899 8496 3902 8492 3898 8483
      3882 8501 3887 8510
TIME...MOT...LOC 2037Z 211DEG 15KT 3886 8504

$$

2 follow-up statements

888 
WWUS51 KILN 232047
SVSILN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
447 PM EDT FRI MAR 23 2012

INC115-155-232100-
/O.CON.KILN.TO.W.0020.000000T0000Z-120323T2100Z/
SWITZERLAND IN-OHIO IN-
447 PM EDT FRI MAR 23 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM EDT FOR OHIO AND
SWITZERLAND COUNTIES...

AT 445 PM EDT...A SEVERE THUNDERSTORM WAS CAPABLE OF PRODUCING 
LOCATED NEAR ALLENSVILLE...MOVING NORTHEAST AT 25 MPH. THIS STORM 
HAS A HISTORY OF PRODUCING A WEAK TORNADO NEAR CENTER SQUARE.

THIS STORM WILL AFFECT MAINLY RURAL AREAS OF OHIO AND SWITZERLAND
COUNTIES...INCLUDING ABERDEEN...PATE...HARTFORD AND MILTON.

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. PROTECT YOURSELF
FROM FLYING DEBRIS.

PLEASE REPORT TORNADOES...FUNNEL CLOUDS...STRONG WINDS OR HAIL TO THE
NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...877-633-6772...WHEN
YOU CAN DO SO SAFELY.

&&

LAT...LON 3898 8503 3898 8502 3898 8500 3899 8500
      3900 8498 3899 8496 3902 8492 3898 8483
      3882 8501 3887 8510
TIME...MOT...LOC 2046Z 211DEG 15KT 3889 8502

$$

459 
WWUS51 KILN 232057
SVSILN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
457 PM EDT FRI MAR 23 2012

INC115-155-232107-
/O.EXP.KILN.TO.W.0020.000000T0000Z-120323T2100Z/
SWITZERLAND IN-OHIO IN-
457 PM EDT FRI MAR 23 2012

...THE TORNADO WARNING FOR OHIO AND SWITZERLAND COUNTIES WILL EXPIRE
AT 500 PM EDT...

PLEASE REPORT PREVIOUS TORNADOES...WIND DAMAGE OR HAIL TO THE
NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...877-633-6772.

LAT...LON 3898 8503 3898 8502 3898 8500 3899 8500
      3900 8498 3899 8496 3902 8492 3898 8483
      3882 8501 3887 8510
TIME...MOT...LOC 2057Z 211DEG 15KT 3893 8499

$$

Nearby

Tornado Warnings in Indiana, 2012 Every tornado warning in 2012 Tornadoes in 2012

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.