Alert archive / Indiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 7, NWS Indianapolis, IN

June 12, 2021Delaware County, Henry County, Madison County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jun 12, 2021, 9:08 PM EDT for Delaware County, Henry County, Madison County, Indiana. It was in force for 37 min. 3 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
Jun 12, 2021, 9:08 PM EDT (01:08 UTC)
Expired
Jun 12, 2021, 9:45 PM EDT
In force
37 min
Issued by
NWS Indianapolis, IN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Delaware County, IN, Henry County, IN, Madison County, IN

The radar

The Indianapolis radar (KIND), 67 km from the middle of the area, began a volume at 01:08 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
Jun 12, 9:15 PM EDTTSTM WND DMG2 Wsw Yorktown, INTREE DOWN ALONG 700W SOUTH OF SR 32. TREES AND TREE LIMBS NOTED TO BE DOWN ACROSS SEVERAL OTHER PORTIONS OF THE COUNTY. TIME ESTIMATED FROM RADAR.
Jun 12, 9:29 PM EDTHAIL 0.51 Ne Anderson, INREPORT FROM MPING: HALF-INCH (0.50 IN.).
Jun 12, 9:47 PM EDTHAIL 0.53 S Edgewood, INREPORT FROM MPING: HALF-INCH (0.50 IN.).

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 1.1 hours before the alert went out and 171 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 00:00Z on 2021-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 647 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 2021-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -7 square meters per square second.1939Sfc1 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
647 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
1794 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
-7 m²/s²
0-3 km storm-relative helicity
58 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

926 
WUUS53 KIND 130108
SVRIND
INC035-065-095-130145-
/O.NEW.KIND.SV.W.0007.210613T0108Z-210613T0145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Indianapolis IN
908 PM EDT Sat Jun 12 2021

The National Weather Service in Indianapolis has issued a

* Severe Thunderstorm Warning for...
  Southeastern Madison County in central Indiana...
  Southwestern Delaware County in east central Indiana...
  Northwestern Henry County in east central Indiana...

* Until 945 PM EDT.

* At 908 PM EDT, a severe thunderstorm was located near Alexandria,
  or 7 miles northeast of Anderson, moving south at 30 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* This severe thunderstorm will be near...
  Anderson, Chesterfield, Edgewood and Daleville around 915 PM EDT.
  Pendleton around 925 PM EDT.

Other locations in the path of this severe thunderstorm include
Markleville and Sulphur Springs.

This includes Interstate 69 between mile markers 222 and 244.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3994 8569 3994 8572 4022 8577 4027 8554
      3998 8540
TIME...MOT...LOC 0108Z 346DEG 28KT 4018 8563 

HAIL...1.00IN
WIND...60MPH
 
$$

Ryan
2 follow-up statements
807 
WWUS53 KIND 130124
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
924 PM EDT Sat Jun 12 2021

INC035-065-095-130145-
/O.CON.KIND.SV.W.0007.000000T0000Z-210613T0145Z/
Madison IN-Delaware IN-Henry IN-
924 PM EDT Sat Jun 12 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM EDT
FOR SOUTHEASTERN MADISON...SOUTHWESTERN DELAWARE AND NORTHWESTERN
HENRY COUNTIES...

At 923 PM EDT, a severe thunderstorm was located near Anderson, 
moving south at 30 mph. This storm has weakened but remains capable 
of damaging winds and large hail.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
  Markleville and Sulphur Springs.

This includes Interstate 69 between mile markers 222 and 238.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3994 8569 3994 8572 4015 8575 4019 8550
      3998 8540
TIME...MOT...LOC 0123Z 346DEG 28KT 4006 8559 

HAIL...1.00IN
WIND...60MPH
 
$$

Ryan
221 
WWUS53 KIND 130136
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
936 PM EDT Sat Jun 12 2021

INC035-065-095-130146-
/O.EXP.KIND.SV.W.0007.000000T0000Z-210613T0145Z/
Madison IN-Delaware IN-Henry IN-
936 PM EDT Sat Jun 12 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MADISON...
SOUTHWESTERN DELAWARE AND NORTHWESTERN HENRY COUNTIES WILL EXPIRE AT
945 PM EDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However small
hail, gusty winds and heavy rain are still possible with this
thunderstorm.

LAT...LON 3994 8569 3994 8572 4015 8575 4019 8550
      3998 8540
TIME...MOT...LOC 0136Z 346DEG 28KT 3997 8556 

$$

Ryan

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 8:28 PM EDTSpecial Weather StatementINDClinton32 min
Jun 12, 8:41 PM EDTSpecial Weather StatementINDShelby34 min
Jun 12, 8:57 PM EDTSpecial Weather StatementINDMadison33 min
Jun 12, 9:23 PM EDTSpecial Weather StatementINDBoone, Montgomery37 min
Jun 12, 9:34 PM EDTSpecial Weather StatementINDHancock, Henry, Randolph26 min
Jun 12, 9:51 PM EDTSevere Thunderstorm WarningINDHancock, Henry, Madison, Rush24 min
Jun 12, 10:15 PM EDTSpecial Weather StatementINDHancock, Henry, Rush, Shelby45 min
Jun 12, 10:16 PM EDTSpecial Weather StatementINDRandolph29 min
Jun 12, 10:27 PM EDTSevere Thunderstorm WarningINDRandolph33 min
Jun 12, 10:32 PM EDTFlash Flood WarningINDRandolph3 hr
Jun 12, 10:40 PM EDTSpecial Weather StatementINDMarion35 min
Jun 12, 10:43 PM EDTSevere Thunderstorm WarningINDHancock, Johnson, Marion32 min
Jun 12, 10:55 PM EDTSevere Thunderstorm WarningINDHancock, Shelby23 min
Jun 12, 11:15 PM EDTFlash Flood WarningINDMarion3 hr
Jun 12, 11:23 PM EDTSpecial Weather StatementINDJohnson, Marion, Shelby37 min
Jun 13, 8:41 AM EDTRiver Flood WarningINDDelaware, Randolph3 hr

Nearby

Severe Thunderstorm Warnings in Indiana, 2021Every severe thunderstorm warning in 2021

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.