Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 146, NWS Indianapolis, IN

July 8, 2012Daviess County, Greene County, Knox County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 8, 2012, 2:49 PM EDT for Daviess County, Greene County, Knox County, Indiana. It was in force for 41 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: Jul 8, 2012, 2:49 PM EDT (18:49 UTC)
Expired: Jul 8, 2012, 3:30 PM EDT
In force: 41 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

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

The radar

The Evansville,IN radar (KVWX), 90 km from the middle of the area, began a volume at 18:51 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
Jul 8, 3:08 PM EDT	HAIL 1	3 N Sandborn, 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.

Issued	Product	Office	Lasted
Jul 8, 2:48 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 6.8 hours before the alert went out and 192 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: 588 J/kg
Mixed-layer CIN: -359 J/kg
Mixed-layer LCL: 1252 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 67 m²/s²
0-3 km storm-relative helicity: 65 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.6

Open this sounding in Storm Lab

The text

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

697 
WUUS53 KIND 081849
SVRIND
INC027-055-083-081930-
/O.NEW.KIND.SV.W.0146.120708T1849Z-120708T1930Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
249 PM EDT SUN JUL 8 2012

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN DAVIESS COUNTY IN SOUTHWEST INDIANA...
  SOUTHWESTERN GREENE COUNTY IN SOUTHWEST INDIANA...
  NORTHEASTERN KNOX COUNTY IN SOUTHWEST INDIANA...

* UNTIL 330 PM EDT

* AT 244 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
  LOCATED 8 MILES SOUTH OF LINTON...OR 27 MILES NORTHEAST OF
  VINCENNES...AND MOVING EAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  BLOOMFIELD...
  SWITZ CITY...
  NEWBERRY...
  ODON...

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.

&&

LAT...LON 3880 8727 3890 8728 3890 8724 3898 8724
      3903 8723 3909 8683 3890 8688 3890 8690
      3882 8691 3881 8692 3872 8693
TIME...MOT...LOC 1849Z 276DEG 24KT 3892 8708
WIND...HAIL 60MPH 1.50IN

$$

PUMA

1 follow-up statement

005 
WWUS53 KIND 081923
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
323 PM EDT SUN JUL 8 2012

INC027-083-081933-
/O.CAN.KIND.SV.W.0146.000000T0000Z-120708T1930Z/
DAVIESS-KNOX-
323 PM EDT SUN JUL 8 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN DAVIESS AND
NORTHEASTERN KNOX COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 3903 8723 3909 8683 3890 8688 3890 8712
      3891 8724 3898 8724
TIME...MOT...LOC 1923Z 276DEG 24KT 3895 8709

$$

INC055-081930-
/O.CON.KIND.SV.W.0146.000000T0000Z-120708T1930Z/
GREENE-
323 PM EDT SUN JUL 8 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
GREENE COUNTY UNTIL 330 PM EDT...

AT 321 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL...
AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 6
MILES SOUTHEAST OF LINTON...OR 29 MILES NORTHEAST OF VINCENNES...
MOVING EAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  BLOOMFIELD...SWITZ CITY AND 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.

&&

LAT...LON 3903 8723 3909 8683 3890 8688 3890 8712
      3891 8724 3898 8724
TIME...MOT...LOC 1923Z 276DEG 24KT 3895 8709
WIND...HAIL 60MPH 1.50IN

$$

NIELD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 7, 8:40 PM EDT	Special Weather Statement	IND	Johnson	50 min
Jul 7, 10:29 PM EDT	Special Weather Statement	IND	Lawrence	46 min
Jul 7, 10:31 PM EDT	Special Weather Statement	IND	Jackson	44 min
Jul 8, 1:25 PM EDT	Severe Thunderstorm Warning	IND	Lawrence, Monroe	50 min
Jul 8, 1:43 PM EDT	Severe Thunderstorm Warning	IND	Lawrence	32 min
Jul 8, 2:15 PM EDT	Severe Thunderstorm Warning	IND	Brown, Jackson, Lawrence	45 min
Jul 8, 2:39 PM EDT	Severe Thunderstorm Warning	IND	Jackson	51 min
Jul 8, 3:03 PM EDT	Severe Thunderstorm Warning	IND	Jackson	27 min
Jul 8, 3:10 PM EDT	Severe Thunderstorm Warning	IND	Sullivan	50 min
Jul 8, 3:17 PM EDT	Areal Flood Advisory	IND	Lawrence, Martin	3 hr
Jul 8, 3:24 PM EDT	Severe Thunderstorm Warning	IND	Greene, Owen	51 min
Jul 8, 3:29 PM EDT	Severe Thunderstorm Warning	IND	Greene	46 min
Jul 8, 3:35 PM EDT	Severe Thunderstorm Warning	IND	Monroe	40 min
Jul 8, 3:37 PM EDT	Areal Flood Advisory	IND	Greene	3 hr
Jul 8, 3:41 PM EDT	Areal Flood Advisory	IND	Jackson	3 hr
Jul 8, 4:03 PM EDT	Severe Thunderstorm Warning	IND	Clay	10 min
Jul 8, 4:22 PM EDT	Areal Flood Advisory	IND	Greene, Lawrence, Monroe	3 hr
Jul 8, 5:44 PM EDT	Special Weather Statement	IND	Knox	46 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; radar from the NEXRAD Level II archive.