Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 227, NWS Indianapolis, IN

August 16, 20124 counties in Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Aug 16, 2012, 5:42 PM EDT for 4 counties in Indiana. It was in force for 48 min. 5 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: Aug 16, 2012, 5:42 PM EDT (21:42 UTC)
Expired: Aug 16, 2012, 6:30 PM EDT
In force: 48 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 70.0 mph

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

What was reported inside it

Time	Report	Where	Remark
Aug 16, 6:07 PM EDT	TSTM WND GST 60	Carlisle, IN
Aug 16, 6:07 PM EDT	TSTM WND GST 60	Paxton, IN
Aug 16, 6:30 PM EDT	TSTM WND DMG	Vincennes, IN	TREES DOWN AT 80 WEST 15 STREET
Aug 16, 6:31 PM EDT	TSTM WND DMG	Bicknell, IN	LARGE TREE DOWN ON WEST 3RD...SEWER PUMP OUT ON SOUTHWEST SIDE OF TOWN...TIME ESTIMATED
Aug 16, 6:40 PM EDT	TSTM WND DMG	Monroe City, IN	TREE WITH LINES DOWN AT 8TH AND JOHNSON...TIME APPROX

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.

Issued	Product	Office	Lasted
Aug 16, 4:27 PM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 9.7 hours before the alert went out and 191 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: 817 J/kg
Mixed-layer CIN: -262 J/kg
Mixed-layer LCL: 1559 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 69 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

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

336 
WUUS53 KIND 162142
SVRIND
INC027-055-083-153-162230-
/O.NEW.KIND.SV.W.0227.120816T2142Z-120816T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
542 PM EDT THU AUG 16 2012

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

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

* UNTIL 630 PM EDT

* AT 540 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS
  WERE LOCATED ALONG A LINE EXTENDING FROM HUTSONVILLE TO NEW HEBRON
  TO 19 MILES WEST OF SUMNER...AND MOVING SOUTHEAST AT 55 MPH.

* LOCATIONS IMPACTED INCLUDE...
  VINCENNES...
  SULLIVAN...
  LINTON...
  WASHINGTON...
  TURTLE CREEK RESERVOIR...
  PAXTON...
  CARLISLE...
  DUGGER...
  OAKTOWN...
  PLEASANTVILLE...
  FREELANDVILLE...
  BRUCEVILLE...
  VINCENNES UNIVERSITY...
  BICKNELL...
  SANDBORN...
  SWITZ CITY...
  EDWARDSPORT...
  LYONS...
  PLAINVILLE...
  ELNORA...

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.

THESE STORMS HAVE A HISTORY OF PRODUCING WIDESPREAD WIND DAMAGE 
ACROSS CENTRAL AND SOUTH CENTRAL ILLINOIS. THIS IS A DANGEROUS 
SITUATION. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY 
FROM WINDOWS.

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

&&

LAT...LON 3844 8775 3848 8774 3851 8765 3855 8767
      3864 8763 3874 8751 3886 8756 3896 8752
      3898 8758 3906 8758 3914 8766 3907 8703
      3853 8707 3851 8715 3855 8721 3850 8730
      3854 8740 3849 8757 3844 8760 3842 8770
TIME...MOT...LOC 2141Z 306DEG 49KT 3908 8758 3894 8772
          3875 8819
WIND...HAIL 70MPH 1.00IN

$$

RYAN

1 follow-up statement

113 
WWUS53 KIND 162159
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
559 PM EDT THU AUG 16 2012

INC027-055-083-153-162230-
/O.CON.KIND.SV.W.0227.000000T0000Z-120816T2230Z/
DAVIESS-GREENE-KNOX-SULLIVAN-
559 PM EDT THU AUG 16 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN
DAVIESS...SOUTHWESTERN GREENE...KNOX AND SOUTHERN SULLIVAN COUNTIES
UNTIL 630 PM EDT...

AT 554 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 5 MILES EAST OF PALESTINE TO
BIRDS TO 16 MILES WEST OF SUMNER...MOVING SOUTHEAST AT 55 MPH.

LOCATIONS IMPACTED INCLUDE...
  VINCENNES...LINTON...WASHINGTON...PAXTON...CARLISLE...OAKTOWN...
  DUGGER...PLEASANTVILLE...BRUCEVILLE...FREELANDVILLE...VINCENNES
  UNIVERSITY...BICKNELL...SANDBORN...SWITZ CITY...EDWARDSPORT...
  LYONS...WHEATLAND...PLAINVILLE...ELNORA AND MONROE CITY.

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.

THESE STORMS HAVE A HISTORY OF PRODUCING WIDESPREAD WIND DAMAGE 
ACROSS CENTRAL AND SOUTH CENTRAL ILLINOIS. THIS IS AN EXTREMELY 
DANGEROUS SITUATION. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND 
STAY AWAY FROM WINDOWS.

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

&&

LAT...LON 3844 8775 3848 8774 3851 8765 3855 8767
      3864 8763 3874 8751 3886 8756 3896 8752
      3898 8758 3906 8758 3914 8766 3907 8703
      3853 8707 3851 8715 3855 8721 3850 8730
      3854 8740 3849 8757 3844 8760 3842 8770
TIME...MOT...LOC 2158Z 306DEG 48KT 3898 8746 3883 8760
          3869 8810
WIND...HAIL 70MPH 1.00IN

$$

RYAN

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 16, 11:00 AM EDT	Special Weather Statement	IND	Carroll, Clinton, Tippecanoe, Warren	45 min
Aug 16, 11:49 AM EDT	Special Weather Statement	IND	Boone, Carroll, Clinton, Fountain, Hamilton, Howard and 4 more	56 min
Aug 16, 3:43 PM EDT	Special Weather Statement	IND	Fountain, Parke, Vermillion	62 min
Aug 16, 4:05 PM EDT	Severe Thunderstorm Warning	IND	Parke, Vermillion	27 min
Aug 16, 4:44 PM EDT	Severe Thunderstorm Warning	IND	Vermillion, Vigo	46 min
Aug 16, 4:47 PM EDT	Areal Flood Advisory	IND	Fountain, Montgomery, Parke, Putnam, Vermillion, Warren	3 hr
Aug 16, 5:29 PM EDT	Severe Thunderstorm Warning	IND	Clay, Greene, Owen, Sullivan, Vigo	46 min
Aug 16, 5:34 PM EDT	Areal Flood Warning	IND	Parke, Vermillion, Vigo	3 hr
Aug 16, 6:09 PM EDT	Severe Thunderstorm Warning	IND	Clay, Daviess, Greene, Lawrence, Martin, Monroe and 1 more	51 min
Aug 16, 6:15 PM EDT	Areal Flood Warning	IND	Clay, Greene, Owen, Sullivan	3 hr
Aug 16, 6:27 PM EDT	Severe Thunderstorm Warning	IND	Daviess, Knox, Lawrence, Martin	48 min
Aug 16, 6:58 PM EDT	Severe Thunderstorm Warning	IND	Brown, Jackson, Lawrence, Martin, Monroe	47 min
Aug 16, 7:13 PM EDT	Areal Flood Advisory	IND	Brown, Jackson, Lawrence, Monroe	4 hr
Aug 16, 7:47 PM EDT	Special Weather Statement	IND	Jackson	43 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2012 Every 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.