Alert archive / Indiana / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 84, NWS Indianapolis, IN

April 26, 2011Jackson County, Lawrence County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Apr 26, 2011, 7:43 PM EDT for Jackson County, Lawrence County, Indiana. It was in force for 30 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
Apr 26, 2011, 7:43 PM EDT (23:43 UTC)
Expired
Apr 26, 2011, 8:13 PM EDT
In force
30 min
Issued by
NWS Indianapolis, IN
Area
Storm-based polygon
Hail
1.5 in
Wind
50.0 mph

Counties Jackson County, IN, Lawrence County, IN

The radar

The Louisville radar (KLVX), 97 km from the middle of the area, began a volume at 23:42 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

TimeReportWhereRemark
Apr 26, 7:50 PM EDTHAIL 14 Ene Mitchell, 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.

IssuedProductOfficeLasted
Apr 26, 5:50 PM EDTTornado WatchSPC5 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.7 hours before the alert went out and 230 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, Cncnati-Daytn, OH at 12:00Z on 2011-04-26Temperature 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, Cncnati-Daytn, OH at 12:00Z on 2011-04-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 282 square meters per square second.19395878Sfc1 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
1095 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
282 m²/s²
0-3 km storm-relative helicity
202 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.

882 
WUUS53 KIND 262343
SVRIND
INC071-093-270030-
/O.NEW.KIND.SV.W.0084.110426T2343Z-110427T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
743 PM EDT TUE APR 26 2011

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN JACKSON COUNTY IN SOUTH CENTRAL INDIANA...
  EASTERN LAWRENCE COUNTY IN SOUTH CENTRAL INDIANA...

* UNTIL 830 PM EDT

* AT 742 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL. 
  THIS STORM WAS LOCATED 6 MILES NORTH OF PAOLI...OR 15 MILES SOUTH
  OF BEDFORD...AND MOVING NORTHEAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  SPRING MILL STATE PARK AND MITCHELL AROUND 755 PM EDT...
  TUNNELTON AROUND 800 PM EDT...
  BEDFORD AROUND 805 PM EDT...
  HELTONVILLE AROUND 820 PM EDT...
  PLEASANT VIEW AND MEDORA AROUND 825 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 A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 3868 8666 3900 8638 3900 8633 3903 8633
      3878 8609 3877 8612 3877 8617 3878 8621
      3877 8625 3877 8629 3873 8631 3869 8632
      3868 8665
TIME...MOT...LOC 2341Z 225DEG 25KT 3864 8650
WIND...HAIL <50MPH 1.50IN

$$

77/TDUD
2 follow-up statements
128 
WWUS53 KIND 270005
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
805 PM EDT TUE APR 26 2011

INC071-093-270030-
/O.CON.KIND.SV.W.0084.000000T0000Z-110427T0030Z/
JACKSON-LAWRENCE-
805 PM EDT TUE APR 26 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN
LAWRENCE AND SOUTHWESTERN JACKSON COUNTIES UNTIL 830 PM EDT...

AT 800 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL. 
THIS STORM WAS LOCATED 11 MILES SOUTHEAST OF BEDFORD...MOVING
NORTHEAST AT 30 MPH.

THERE WAS A REPORT OF 1 INCH HAIL 4 MILES EAST OF MITCHELL.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  HELTONVILLE AROUND 820 PM EDT...
  PLEASANT VIEW AND MEDORA AROUND 825 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 A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 3869 8632 3878 8652 3900 8638 3900 8633
      3903 8633 3878 8609 3877 8612 3877 8617
      3878 8621 3877 8625 3877 8629 3873 8631
TIME...MOT...LOC 0003Z 225DEG 25KT 3875 8636
WIND...HAIL <50MPH 1.50IN

$$

77/TDUD
332 
WWUS53 KIND 270013
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
813 PM EDT TUE APR 26 2011

INC071-093-270024-
/O.CAN.KIND.SV.W.0084.000000T0000Z-110427T0030Z/
JACKSON-LAWRENCE-
813 PM EDT TUE APR 26 2011

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN LAWRENCE AND
SOUTHWESTERN JACKSON COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO 
WATCH REMAINS IN EFFECT UNTIL 11 PM EDT.

LAT...LON 3869 8632 3878 8652 3900 8638 3900 8633
      3903 8633 3878 8609 3877 8612 3877 8617
      3878 8621 3877 8625 3877 8629 3873 8631
TIME...MOT...LOC 0014Z 225DEG 25KT 3880 8629

$$

77/TDUD

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 26, 12:31 AM EDTSpecial Weather StatementINDMontgomery, Parke44 min
Apr 26, 3:31 AM EDTTornado WarningINDDaviess, Martin29 min
Apr 26, 12:23 PM EDTRiver Flood WarningINDDelaware, Madison49 hr
Apr 26, 12:23 PM EDTRiver Flood WarningINDJackson, Jennings, Washington38 hr
Apr 26, 4:35 PM EDTRiver Flood WarningINDCarroll, Tippecanoe, White21 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.