Alert archive / Indiana / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 39, NWS Indianapolis, IN

April 4, 2011Sullivan County, Vigo County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Apr 4, 2011, 6:27 AM EDT for Sullivan County, Vigo County, Indiana. It was in force for 32 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: Apr 4, 2011, 6:27 AM EDT (10:27 UTC)
Expired: Apr 4, 2011, 6:59 AM EDT
In force: 32 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

Counties Sullivan County, IN, Vigo County, IN

The radar

The Evansville,IN radar (KVWX), 117 km from the middle of the area, began a volume at 10:30 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 4, 5:30 AM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 10.5 hours before the alert went out and 130 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: 191 J/kg
Mixed-layer CIN: -426 J/kg
Mixed-layer LCL: 2183 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 363 m²/s²
0-3 km storm-relative helicity: 578 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.

107 
WUUS53 KIND 041027
SVRIND
INC153-167-041115-
/O.NEW.KIND.SV.W.0039.110404T1027Z-110404T1115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
627 AM EDT MON APR 4 2011

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN SULLIVAN COUNTY IN SOUTHWEST INDIANA...
  VIGO COUNTY IN WEST CENTRAL INDIANA...

* UNTIL 715 AM EDT/615 AM CDT/

* AT 620 AM EDT/520 AM CDT/...NATIONAL WEATHER SERVICE DOPPLER RADAR
  INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE
  WINDS IN EXCESS OF 70 MPH.  THIS STORM WAS LOCATED 5 MILES
  NORTHWEST OF ANNAPOLIS...OR 15 MILES NORTHWEST OF ROBINSON...AND
  MOVING NORTHEAST AT 55 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  GRAYSVILLE AROUND 635 AM EDT...
  FAIRBANKS AROUND 640 AM EDT...
  PRAIRIE CREEK AND SHELBURN AROUND 645 AM EDT...
  PRAIRIETON...PIMENTO...FARMERSBURG AND SANDFORD AROUND 650 AM
  EDT...
  TERRE HAUTE...INDIANA STATE UNIVERSITY AND WEST TERRE HAUTE AROUND
  655 AM EDT...
  RILEY...NORTH TERRE HAUTE AND SHEPARDSVILLE AROUND 700 AM EDT...
  SEELYVILLE AROUND 705 AM EDT...

THIS INCLUDES INTERSTATE 70 BETWEEN MILE MARKERS 0 AND 15.

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 3916 8767 3920 8760 3922 8759 3925 8759
      3926 8762 3931 8763 3935 8759 3936 8754
      3957 8754 3961 8748 3959 8726 3912 8725
      3911 8767
TIME...MOT...LOC 1027Z 240DEG 48KT 3924 8780
WIND...HAIL 70MPH <.75IN

$$

JK

2 follow-up statements

287 
WWUS53 KIND 041049
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
649 AM EDT MON APR 4 2011

INC153-041059-
/O.CAN.KIND.SV.W.0039.000000T0000Z-110404T1115Z/
SULLIVAN-
649 AM EDT MON APR 4 2011

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

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

LAT...LON 3930 8728 3926 8762 3931 8763 3935 8759
      3936 8754 3957 8754 3961 8748 3959 8726
TIME...MOT...LOC 1049Z 240DEG 48KT 3938 8747

$$

INC167-041115-
/O.CON.KIND.SV.W.0039.000000T0000Z-110404T1115Z/
VIGO-
649 AM EDT MON APR 4 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR VIGO COUNTY
UNTIL 715 AM EDT/615 AM CDT/...

AT 543 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH.  THIS STORM WAS LOCATED 8 MILES SOUTHEAST OF MARSHALL...
MOVING NORTHEAST AT 55 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  TERRE HAUTE...INDIANA STATE UNIVERSITY AND WEST TERRE HAUTE AROUND
  655 AM EDT...
  RILEY...NORTH TERRE HAUTE AND SHEPARDSVILLE AROUND 700 AM EDT...

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 3930 8728 3926 8762 3931 8763 3935 8759
      3936 8754 3957 8754 3961 8748 3959 8726
TIME...MOT...LOC 1049Z 240DEG 48KT 3938 8747
WIND...HAIL 60MPH <.75IN

$$

JK

539 
WWUS53 KIND 041059
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
659 AM EDT MON APR 4 2011

INC167-041109-
/O.CAN.KIND.SV.W.0039.000000T0000Z-110404T1115Z/
VIGO-
659 AM EDT MON APR 4 2011

...THE SEVERE THUNDERSTORM WARNING FOR VIGO COUNTY IS CANCELLED...

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

LAT...LON 3930 8728 3926 8762 3931 8763 3935 8759
      3936 8754 3957 8754 3961 8748 3959 8726
TIME...MOT...LOC 1059Z 240DEG 48KT 3944 8732

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 4, 4:12 AM EDT	Special Weather Statement	IND	Fountain, Tippecanoe, Warren	33 min
Apr 4, 4:52 AM EDT	Special Weather Statement	IND	Boone, Carroll, Clinton, Howard, Montgomery, Tipton	23 min
Apr 4, 5:04 AM EDT	Severe Thunderstorm Warning	IND	Carroll, Clinton, Howard, Tipton	26 min
Apr 4, 5:16 AM EDT	Severe Thunderstorm Warning	IND	Boone, Clinton, Hamilton, Madison, Tipton	29 min
Apr 4, 5:31 AM EDT	Severe Thunderstorm Warning	IND	Howard	14 min
Apr 4, 5:47 AM EDT	Severe Thunderstorm Warning	IND	Delaware, Madison, Tipton	28 min
Apr 4, 6:12 AM EDT	Severe Thunderstorm Warning	IND	Delaware	19 min
Apr 4, 7:03 AM EDT	Severe Thunderstorm Warning	IND	Hendricks, Marion, Morgan, Owen, Putnam	42 min
Apr 4, 7:08 AM EDT	Severe Thunderstorm Warning	IND	Brown, Monroe, Morgan, Owen	35 min
Apr 4, 7:26 AM EDT	Severe Thunderstorm Warning	IND	Brown, Johnson, Morgan	23 min
Apr 4, 7:41 AM EDT	Severe Thunderstorm Warning	IND	Shelby	22 min
Apr 4, 7:56 AM EDT	Severe Thunderstorm Warning	IND	Rush, Shelby	28 min
Apr 4, 7:59 AM EDT	Severe Thunderstorm Warning	IND	Sullivan, Vigo	24 min
Apr 4, 10:23 AM EDT	Special Weather Statement	IND	Brown, Monroe	37 min
Apr 4, 10:35 AM EDT	Special Weather Statement	IND	Daviess, Knox, Martin	40 min
Apr 4, 12:08 PM EDT	Special Weather Statement	IND	Bartholomew, Decatur, Jackson, Jennings, Lawrence, Martin	37 min
Apr 4, 12:59 PM EDT	Areal Flood Advisory	IND	Bartholomew, Brown, Clay, Greene, Hancock, Henry and 7 more	11 hr
Apr 4, 6:14 PM EDT	River Flood Warning	IND	Shelby	43 hr
Apr 4, 6:14 PM EDT	River Flood Warning	IND	Jackson, Lawrence, Washington	5 days

Nearby

Severe Thunderstorm Warnings in Indiana, 2011 Every severe thunderstorm warning in 2011

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.