Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 152, NWS Indianapolis, IN

July 8, 2012Clay County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 8, 2012, 4:03 PM EDT for Clay County, Indiana. It was in force for 10 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 8, 2012, 4:03 PM EDT (20:03 UTC)
Expired: Jul 8, 2012, 4:13 PM EDT
In force: 10 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Clay County, IN

The radar

The Indianapolis radar (KIND), 95 km from the middle of the area, began a volume at 20:03 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.

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 8.1 hours before the alert went out and 159 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.

394 
WUUS53 KIND 082003
SVRIND
INC021-082030-
/O.NEW.KIND.SV.W.0152.120708T2003Z-120708T2030Z/

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

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN CLAY COUNTY IN WEST CENTRAL INDIANA...

* UNTIL 430 PM EDT

* AT 358 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 13
  MILES NORTH OF LINTON...OR 20 MILES SOUTHEAST OF TERRE HAUTE...AND
  MOVING SOUTHEAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF SOUTHERN CLAY COUNTY.

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 3918 8724 3929 8724 3932 8723 3925 8705
      3917 8706 3917 8721 3918 8725
TIME...MOT...LOC 2003Z 304DEG 22KT 3921 8715
WIND...HAIL 60MPH 1.00IN

$$

NIELD

1 follow-up statement

210 
WWUS53 KIND 082013
SVSIND

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

INC021-082023-
/O.CAN.KIND.SV.W.0152.000000T0000Z-120708T2030Z/
CLAY-
413 PM EDT SUN JUL 8 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN CLAY COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
HOWEVER SMALL HAIL...GUSTY WINDS AND HEAVY RAIN ARE STILL POSSIBLE 
WITH THIS THUNDERSTORM.

LAT...LON 3918 8724 3929 8724 3932 8723 3925 8705
      3917 8706 3917 8721 3918 8725
TIME...MOT...LOC 2013Z 304DEG 22KT 3918 8708

$$

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, 2:49 PM EDT	Severe Thunderstorm Warning	IND	Daviess, Greene, Knox	41 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, 4:22 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.