Alert archive / Indiana / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 95, NWS Indianapolis, IN

May 7, 20114 counties in Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at May 7, 2011, 8:15 PM EDT for 4 counties in Indiana. It was in force for 45 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
May 7, 2011, 8:15 PM EDT (00:15 UTC)
Expired
May 7, 2011, 9:00 PM EDT
In force
45 min
Issued by
NWS Indianapolis, IN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Clay County, IN, Parke County, IN, Putnam County, IN, Vigo County, IN

The radar

The Indianapolis radar (KIND), 77 km from the middle of the area, began a volume at 00:17 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.

IssuedProductOfficeLasted
May 7, 3:59 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 0.3 hours before the alert went out and 137 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-pSkew-T log-p diagram, Lincoln, IL at 00:00Z on 2011-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 00:00Z on 2011-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3086 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
113 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.

523 
WUUS53 KIND 080015
SVRIND
INC021-121-133-167-080100-
/O.NEW.KIND.SV.W.0095.110508T0015Z-110508T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
815 PM EDT SAT MAY 7 2011

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN CLAY COUNTY IN WEST CENTRAL INDIANA...
  SOUTHERN PARKE COUNTY IN WEST CENTRAL INDIANA...
  SOUTHWESTERN PUTNAM COUNTY IN WEST CENTRAL INDIANA...
  NORTHEASTERN VIGO COUNTY IN WEST CENTRAL INDIANA...

* UNTIL 900 PM EDT

* AT 812 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 8 MILES
  NORTHWEST OF BRAZIL...OR 14 MILES NORTHEAST OF TERRE HAUTE...AND
  MOVING SOUTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  CARBON AROUND 825 PM EDT...
  SEELYVILLE AROUND 830 PM EDT...
  BRAZIL...KNIGHTSVILLE...HARMONY AND STAUNTON AROUND 840 PM EDT...
  CORY AROUND 855 PM EDT...

THIS INCLUDES INTERSTATE 70 BETWEEN MILE MARKERS 15 AND 33.

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 EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP
QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

&&

LAT...LON 3973 8716 3949 8692 3936 8723 3963 8737
TIME...MOT...LOC 0015Z 325DEG 16KT 3960 8720
WIND...HAIL 60MPH 1.00IN

$$

77/TDUD
3 follow-up statements
698 
WWUS53 KIND 080025
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
825 PM EDT SAT MAY 7 2011

INC021-121-133-167-080100-
/O.CON.KIND.SV.W.0095.000000T0000Z-110508T0100Z/
CLAY-PARKE-PUTNAM-VIGO-
825 PM EDT SAT MAY 7 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
CLAY...NORTHEASTERN VIGO...SOUTHWESTERN PUTNAM AND SOUTH CENTRAL
PARKE COUNTIES UNTIL 900 PM EDT...

AT 824 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
BRAZIL...OR 13 MILES NORTHEAST OF TERRE HAUTE...MOVING SOUTHEAST AT
20 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  SEELYVILLE AROUND 830 PM EDT...
  BRAZIL AND STAUNTON AROUND 835 PM EDT...
  KNIGHTSVILLE AND HARMONY AROUND 840 PM EDT...
  CORY AROUND 855 PM 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.

THIS STORM HAS EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP
QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE... SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

&&

LAT...LON 3968 8712 3949 8692 3936 8723 3963 8737
TIME...MOT...LOC 0025Z 325DEG 16KT 3956 8717
WIND...HAIL 60MPH 1.00IN

$$

77/TDUD
938 
WWUS53 KIND 080038
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
838 PM EDT SAT MAY 7 2011

INC121-080048-
/O.CAN.KIND.SV.W.0095.000000T0000Z-110508T0100Z/
PARKE-
838 PM EDT SAT MAY 7 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL PARKE COUNTY IS
CANCELLED...

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

LAT...LON 3961 8718 3961 8707 3949 8692 3936 8723
      3958 8734
TIME...MOT...LOC 0038Z 325DEG 16KT 3951 8713

$$

INC021-133-167-080100-
/O.CON.KIND.SV.W.0095.000000T0000Z-110508T0100Z/
CLAY-PUTNAM-VIGO-
838 PM EDT SAT MAY 7 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
CLAY...NORTHEASTERN VIGO AND SOUTHWESTERN PUTNAM COUNTIES UNTIL 900
PM EDT...

AT 836 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
BRAZIL...OR 14 MILES EAST OF TERRE HAUTE...MOVING SOUTHEAST AT 20
MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  CORY AROUND 855 PM 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.

THIS STORM HAS EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP
QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE... SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

&&

LAT...LON 3961 8718 3961 8707 3949 8692 3936 8723
      3958 8734
TIME...MOT...LOC 0038Z 325DEG 16KT 3951 8713
WIND...HAIL 60MPH 1.00IN

$$

77/TDUD
798 
WWUS53 KIND 080051
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
851 PM EDT SAT MAY 7 2011

INC021-133-167-080101-
/O.EXP.KIND.SV.W.0095.000000T0000Z-110508T0100Z/
CLAY-PUTNAM-VIGO-
851 PM EDT SAT MAY 7 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN CLAY...NORTHEASTERN
VIGO AND SOUTHWESTERN PUTNAM COUNTIES WILL EXPIRE AT 900 PM EDT/800
PM CDT/...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND MOVED OUT OF
THE WARNED AREA.  HOWEVER SMALL HAIL...GUSTY WINDS AND HEAVY RAIN ARE
STILL POSSIBLE WITH THIS THUNDERSTORM.

IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 11 PM EDT.

LAT...LON 3961 8718 3961 8707 3949 8692 3936 8723
      3958 8734
TIME...MOT...LOC 0051Z 325DEG 16KT 3946 8709

$$

77/TDUD

The office that day

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

IssuedProductOfficeCountiesLasted
May 7, 8:23 PM EDTTornado WarningINDClay, Sullivan, Vigo52 min
May 7, 8:33 PM EDTAreal Flood AdvisoryINDClay, Fountain, Parke, Vermillion, Vigo5 hr
May 7, 8:55 PM EDTFlash Flood WarningINDClay, Greene, Owen, Putnam, Sullivan, Vigo6 hr
May 7, 9:02 PM EDTTornado WarningINDClay, Greene, Sullivan, Vigo43 min
May 7, 9:10 PM EDTTornado WarningINDSullivan, Vigo20 min
May 7, 9:26 PM EDTSevere Thunderstorm WarningINDSullivan, Vigo20 min
May 7, 9:37 PM EDTTornado WarningINDDaviess, Greene, Martin38 min
May 7, 10:12 PM EDTTornado WarningINDGreene, Lawrence, Martin48 min
May 7, 10:45 PM EDTFlash Flood WarningINDDaviess, Greene, Knox, Lawrence, Martin6 hr

Nearby

Severe Thunderstorm Warnings in Indiana, 2011Every 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.