Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 225, NWS Indianapolis, IN

August 16, 2012Vermillion County, Vigo County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Aug 16, 2012, 4:44 PM EDT for Vermillion County, Vigo County, Indiana. It was in force for 46 min. 7 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, 4:44 PM EDT (20:44 UTC)
Expired: Aug 16, 2012, 5:30 PM EDT
In force: 46 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Vermillion County, IN, Vigo County, IN

The radar

The Indianapolis radar (KIND), 99 km from the middle of the area, began a volume at 20:48 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
Aug 16, 4:56 PM EDT	HAIL 0.25	6 Sw Clinton, IN	ACCOMPANIED BY HEAVY RAIN
Aug 16, 5:08 PM EDT	HAIL 0.25	North Terre Haute, IN
Aug 16, 5:10 PM EDT	HAIL 0.75	North Terre Haute, IN
Aug 16, 5:16 PM EDT	HAIL 1.75	North Terre Haute, IN
Aug 16, 5:22 PM EDT	HAIL 1	1 N Terre Haute, IN
Aug 16, 5:25 PM EDT	HAIL 0.75	Terre Haute, IN
Aug 16, 5:30 PM EDT	TSTM WND GST 51	Terre Haute, 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
Aug 16, 4:27 PM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 8.7 hours before the alert went out and 118 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.

300 
WUUS53 KIND 162044
SVRIND
INC165-167-162130-
/O.NEW.KIND.SV.W.0225.120816T2044Z-120816T2130Z/

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

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN VERMILLION COUNTY IN WEST CENTRAL INDIANA...
  NORTHERN VIGO COUNTY IN WEST CENTRAL INDIANA...

* UNTIL 530 PM EDT

* AT 438 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 NEAR
  VERMILION...OR 5 MILES EAST OF PARIS...AND MOVING SOUTHEAST AT 20
  MPH.

* LOCATIONS IMPACTED INCLUDE...
  TERRE HAUTE...
  UNIVERSAL...
  SHEPARDSVILLE...
  NORTH TERRE HAUTE...
  INDIANA STATE UNIVERSITY...

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.

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

&&

LAT...LON 3966 8753 3962 8739 3961 8738 3961 8735
      3956 8720 3943 8736 3950 8754 3966 8754
TIME...MOT...LOC 2044Z 298DEG 19KT 3961 8755
WIND...HAIL 60MPH 1.00IN

$$

RYAN

2 follow-up statements

125 
WWUS53 KIND 162104
SVSIND

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

INC165-162113-
/O.CAN.KIND.SV.W.0225.000000T0000Z-120816T2130Z/
VERMILLION-
504 PM EDT THU AUG 16 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN VERMILLION COUNTY IS
CANCELLED...

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

LAT...LON 3961 8753 3961 8738 3956 8720 3943 8736
      3950 8753
TIME...MOT...LOC 2103Z 298DEG 19KT 3956 8744

$$

INC167-162130-
/O.CON.KIND.SV.W.0225.000000T0000Z-120816T2130Z/
VIGO-
504 PM EDT THU AUG 16 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN VIGO
COUNTY UNTIL 530 PM EDT...

AT 502 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 7 MILES
SOUTH OF CLINTON...OR 7 MILES NORTHWEST OF TERRE HAUTE...MOVING
SOUTHEAST AT 20 MPH.

LOCATIONS IMPACTED INCLUDE...
  TERRE HAUTE...NORTH TERRE HAUTE AND INDIANA STATE UNIVERSITY.

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.

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

&&

LAT...LON 3961 8753 3961 8738 3956 8720 3943 8736
      3950 8753
TIME...MOT...LOC 2103Z 298DEG 19KT 3956 8744
WIND...HAIL 60MPH 1.00IN

$$

RYAN

975 
WWUS53 KIND 162117
SVSIND

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

INC167-162130-
/O.CON.KIND.SV.W.0225.000000T0000Z-120816T2130Z/
VIGO-
517 PM EDT THU AUG 16 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN VIGO
COUNTY UNTIL 530 PM EDT...

AT 511 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
TERRE HAUTE...MOVING SOUTHEAST AT 20 MPH.

LOCATIONS IMPACTED INCLUDE...
  TERRE HAUTE.

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.

THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

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

&&

LAT...LON 3961 8738 3956 8720 3943 8736 3950 8753
TIME...MOT...LOC 2117Z 298DEG 19KT 3952 8736
WIND...HAIL 60MPH 1.75IN

$$

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, 4:47 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, 5:42 PM EDT	Severe Thunderstorm Warning	IND	Daviess, Greene, Knox, Sullivan	48 min
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; radar from the NEXRAD Level II archive.