Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 12, NWS Indianapolis, IN

January 23, 20125 counties in Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jan 23, 2012, 12:27 AM EST for 5 counties in Indiana. It was in force for 33 min. 4 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
Jan 23, 2012, 12:27 AM EST (05:27 UTC)
Expired
Jan 23, 2012, 1:00 AM EST
In force
33 min
Issued by
NWS Indianapolis, IN
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Daviess County, IN, Greene County, IN, Knox County, IN, Martin County, IN, Sullivan County, IN

The radar

The Evansville,IN radar (KVWX), 68 km from the middle of the area, began a volume at 05:31 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
Jan 23, 12:30 AM ESTTSTM WND DMGOdon, INSHINGLES WERE BLOWN OFF A ROOF BY MEASURED 60 MPH WINDS.
Jan 23, 12:30 AM ESTTSTM WND GST 60Odon, INSHINGLES WERE BLOWN OFF A ROOF
Jan 23, 12:45 AM ESTTSTM WND DMG4 Nw Washington, INHOUSE AND TURKEY BARNS DESTROYED AT 4930 NORTH AND 350 WEST. ONE WALL LEFT STANDING OF HOUSE. REFERENCE CITY AND DIRECTION/DISTANCE IS ESTIMATED.
Jan 23, 12:45 AM ESTTSTM WND DMGElnora, INUNSPECIFIED AND UNCONFIRMED DAMAGE

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

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 5.5 hours before the alert went out and 216 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 00:00Z on 2012-01-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 00:00Z on 2012-01-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 494 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
3 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
378 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
494 m²/s²
0-3 km storm-relative helicity
471 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.

991 
WUUS53 KIND 230527
SVRIND
INC027-055-083-101-153-230600-
/O.NEW.KIND.SV.W.0012.120123T0527Z-120123T0600Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1227 AM EST MON JAN 23 2012

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  DAVIESS COUNTY IN SOUTHWEST INDIANA...
  SOUTHWESTERN GREENE COUNTY IN SOUTHWEST INDIANA...
  EASTERN KNOX COUNTY IN SOUTHWEST INDIANA...
  WESTERN MARTIN COUNTY IN SOUTHWEST INDIANA...
  SOUTHEASTERN SULLIVAN COUNTY IN SOUTHWEST INDIANA...

* UNTIL 100 AM EST

* AT 1225 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM SULLIVAN TO 10 MILES EAST OF RUSSELLVILLE TO WINSLOW...AND    
  MOVING NORTHEAST AT 60 MPH. 60 MPH WIND GUSTS HAVE BEEN REPORTED   
  WITH THIS LINE IN SOUTHWEST KNOX COUNTY.

* LOCATIONS IMPACTED INCLUDE...
  WASHINGTON...
  LINTON...
  SHOALS...
  BLOOMFIELD...
  ELNORA...
  LOOGOOTEE...
  ODON...
  SWITZ CITY...
  NEWBERRY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

INTENSE SQUALL LINES CAN OCCASIONALLY PRODUCE BRIEF TORNADOES IN
ADDITION TO WIDESPREAD SIGNIFICANT WIND DAMAGE. ALTHOUGH NOT
IMMEDIATELY LIKELY...FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON
THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. THIS STORM HAS THE
POTENTIAL TO CAUSE SERIOUS INJURY AND SIGNIFICANT DAMAGE TO PROPERTY.

&&

LAT...LON 3851 8699 3850 8706 3853 8710 3851 8715
      3855 8719 3854 8725 3850 8730 3854 8737
      3877 8747 3906 8743 3909 8695 3870 8676
      3853 8676 3852 8683 3849 8688 3850 8693
      3849 8695
TIME...MOT...LOC 0526Z 225DEG 53KT 3907 8733 3879 8733
          3838 8715
WIND...HAIL 60MPH <.75IN

$$

RYAN
2 follow-up statements
580 
WWUS53 KIND 230544
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1244 AM EST MON JAN 23 2012

INC153-230554-
/O.CAN.KIND.SV.W.0012.000000T0000Z-120123T0600Z/
SULLIVAN-
1244 AM EST MON JAN 23 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN SULLIVAN COUNTY
IS CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE 
WARNED AREA.

LAT...LON 3851 8699 3850 8706 3853 8710 3852 8715
      3858 8718 3883 8718 3902 8725 3907 8724
      3909 8695 3870 8676 3853 8676 3852 8683
      3849 8688 3850 8693 3849 8695
TIME...MOT...LOC 0544Z 225DEG 53KT 3910 8709 3891 8709
          3856 8691

$$

INC027-055-083-101-230600-
/O.CON.KIND.SV.W.0012.000000T0000Z-120123T0600Z/
DAVIESS-GREENE-KNOX-MARTIN-
1244 AM EST MON JAN 23 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR DAVIESS...
SOUTHWESTERN GREENE...EXTREME NORTHEASTERN KNOX AND WESTERN MARTIN
COUNTIES UNTIL 100 AM EST...

AT 1238 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM LINTON TO 13 MILES NORTH OF WASHINGTON TO 8 MILES NORTH OF
JASPER...MOVING NORTHEAST AT 60 MPH.

LOCATIONS IMPACTED INCLUDE...
  SHOALS...BLOOMFIELD...SWITZ CITY...LOOGOOTEE...ODON...WEST BOGGS
  LAKE...NEWBERRY...BURNS CITY...LACY AND CRANE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

INTENSE SQUALL LINES CAN OCCASIONALLY PRODUCE BRIEF TORNADOES IN
ADDITION TO WIDESPREAD SIGNIFICANT WIND DAMAGE. ALTHOUGH NOT
IMMEDIATELY LIKELY...FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON
THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. THIS STORM HAS THE
POTENTIAL TO CAUSE SERIOUS INJURY AND SIGNIFICANT DAMAGE TO PROPERTY.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 3851 8699 3850 8706 3853 8710 3852 8715
      3858 8718 3883 8718 3902 8725 3907 8724
      3909 8695 3870 8676 3853 8676 3852 8683
      3849 8688 3850 8693 3849 8695
TIME...MOT...LOC 0544Z 225DEG 53KT 3910 8709 3891 8709
          3856 8691
WIND...HAIL 60MPH <.75IN

$$

RYAN
459 
WWUS53 KIND 230559
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1259 AM EST MON JAN 23 2012

INC027-055-083-101-230609-
/O.EXP.KIND.SV.W.0012.000000T0000Z-120123T0600Z/
DAVIESS-GREENE-KNOX-MARTIN-
1259 AM EST MON JAN 23 2012

...THE SEVERE THUNDERSTORM WARNING FOR DAVIESS...SOUTHWESTERN
GREENE...EXTREME NORTHEASTERN KNOX AND WESTERN MARTIN COUNTIES HAS
EXPIRED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS WEAKENED. HOWEVER 
HEAVY RAIN IS STILL POSSIBLE WITH THESE THUNDERSTORMS.

LAT...LON 3851 8699 3850 8706 3853 8710 3852 8715
      3858 8718 3883 8718 3902 8725 3907 8724
      3909 8695 3870 8676 3853 8676 3852 8683
      3849 8688 3850 8693 3849 8695
TIME...MOT...LOC 0559Z 225DEG 53KT 3925 8688 3906 8689
          3871 8671

$$

RYAN

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 23, 12:00 AM ESTSevere Thunderstorm WarningINDDaviess, Knox30 min
Jan 23, 12:31 AM ESTSevere Thunderstorm WarningINDClay, Greene, Sullivan, Vigo29 min
Jan 23, 12:50 AM ESTSpecial Weather StatementINDOwen25 min
Jan 23, 12:58 AM ESTSpecial Weather StatementINDGreene, Lawrence, Martin, Monroe32 min
Jan 23, 1:14 AM ESTTornado WarningINDPutnam8 min
Jan 23, 1:27 AM ESTSpecial Weather StatementINDBoone, Hendricks33 min
Jan 23, 1:30 AM ESTSpecial Weather StatementINDBartholomew, Brown, Jackson, Johnson, Morgan45 min
Jan 23, 1:53 AM ESTSpecial Weather StatementINDHamilton, Hancock, Madison, Marion37 min
Jan 23, 2:02 AM ESTSpecial Weather StatementINDBartholomew, Decatur, Jennings, Rush, Shelby43 min
Jan 23, 2:24 AM ESTSpecial Weather StatementINDDelaware, Henry, Madison, Randolph51 min
Jan 23, 10:46 AM ESTRiver Flood WarningINDDaviess, Greene, Knox8 days
Jan 23, 10:46 AM ESTRiver Flood WarningINDParke, Vermillion, Vigo11 days

Nearby

Severe Thunderstorm Warnings in Indiana, 2012Every severe thunderstorm warning 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.