Alert archive / Indiana / Tornado Warnings in 2012

Tornado Warning 14, NWS Indianapolis, IN

April 28, 2012Daviess County, Knox County, Martin County, Indiana

NWS Indianapolis, IN issued this tornado warning at Apr 28, 2012, 5:59 PM EDT for Daviess County, Knox County, Martin County, Indiana. It was in force for 31 min. 3 reports 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
Apr 28, 2012, 5:59 PM EDT (21:59 UTC)
Expired
Apr 28, 2012, 6:30 PM EDT
In force
31 min
Issued by
NWS Indianapolis, IN
Area
Storm-based polygon

Counties Daviess County, IN, Knox County, IN, Martin County, IN

The radar

The Evansville,IN radar (KVWX), 85 km from the middle of the area, began a volume at 22:03 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

TimeReportWhereRemark
Apr 28, 6:06 PM EDTTSTM WND GST 90Washington, IN
Apr 28, 6:06 PM EDTHAIL 1.5Washington, IN
Apr 28, 6:22 PM EDTHAIL 1.757 Ese Washington, IN

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

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 28, 4:33 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.0 hours before the alert went out and 210 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-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 2012-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2012-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 681 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1019 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
681 m²/s²
0-3 km storm-relative helicity
811 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.0

Open this sounding in Storm Lab

The text

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

021 
WFUS53 KIND 282159
TORIND
INC027-083-101-282230-
/O.NEW.KIND.TO.W.0014.120428T2159Z-120428T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
559 PM EDT SAT APR 28 2012

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL DAVIESS COUNTY IN SOUTHWEST INDIANA...
  EAST CENTRAL KNOX COUNTY IN SOUTHWEST INDIANA...
  CENTRAL MARTIN COUNTY IN SOUTHWEST INDIANA...

* UNTIL 630 PM EDT

* AT 555 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 9 MILES NORTHWEST OF WASHINGTON...OR 16 MILES
  NORTHEAST OF VINCENNES...AND MOVING EAST AT 40 MPH.

  IN ADDITION...GOLF BALL SIZE HAIL WAS REPORTED IN BICKNELL WITH
  THIS STORM.

* LOCATIONS IMPACTED INCLUDE...
  WASHINGTON...
  SHOALS...
  PLAINVILLE...
  MONTGOMERY...
  CANNELBURG...
  WEST BOGGS LAKE...
  BURNS CITY...
  LOOGOOTEE...
  LACY...
  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 3880 8669 3856 8677 3868 8737 3887 8730
TIME...MOT...LOC 2158Z 281DEG 37KT 3877 8721

$$

50
1 follow-up statement
347 
WWUS53 KIND 282214
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
614 PM EDT SAT APR 28 2012

INC027-083-101-282230-
/O.CON.KIND.TO.W.0014.000000T0000Z-120428T2230Z/
DAVIESS-KNOX-MARTIN-
614 PM EDT SAT APR 28 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL DAVIESS...EAST
CENTRAL KNOX AND CENTRAL MARTIN COUNTIES UNTIL 630 PM EDT...

AT 609 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR WASHINGTON...OR 15 MILES NORTHEAST OF
PETERSBURG...MOVING EAST AT 40 MPH.

IN ADDITION...80 TO 90 MPH WINDS WERE REPORTED IN WASHINGTON WITH 
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
  SHOALS...CANNELBURG...WEST BOGGS LAKE...BURNS CITY...LOOGOOTEE...
  INDIAN SPRINGS AND LACY.

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 3880 8669 3856 8677 3868 8737 3887 8730
TIME...MOT...LOC 2214Z 285DEG 36KT 3864 8703

$$

50

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 28, 5:26 PM EDTSevere Thunderstorm WarningINDDaviess, Greene, Knox, Sullivan49 min
Apr 28, 5:39 PM EDTFlash Flood WarningINDKnox, Sullivan3 hr
Apr 28, 6:28 PM EDTTornado WarningINDDaviess, Lawrence, Martin19 min

Nearby

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