Alert archive / Indiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 8, NWS Indianapolis, IN

June 12, 20214 counties in Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jun 12, 2021, 9:51 PM EDT for 4 counties in Indiana. It was in force for 24 min. 2 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, 9:51 PM EDT (01:51 UTC)
Expired: Jun 12, 2021, 10:15 PM EDT
In force: 24 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Hancock County, IN, Henry County, IN, Madison County, IN, Rush County, IN

The radar

The Indianapolis radar (KIND), 56 km from the middle of the area, began a volume at 01:54 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
Jun 12, 10:04 PM EDT	TSTM WND DMG	Shirley, IN	LARGE LIMB FELL ON VEHICLE.
Jun 12, 10:10 PM EDT	TSTM WND DMG	Shirley, IN	UTILITY POLE AND LINES DOWN AT THE INTERSECTION OF STATE ROUTE 234 AND SHIRLEY ROAD.

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, 1.9 hours before the alert went out and 164 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: 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.

559 
WUUS53 KIND 130151
SVRIND
INC059-065-095-139-130215-
/O.NEW.KIND.SV.W.0008.210613T0151Z-210613T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Indianapolis IN
951 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...
  Eastern Hancock County in central Indiana...
  Northwestern Rush County in central Indiana...
  Southwestern Henry County in east central Indiana...

* Until 1015 PM EDT.

* At 951 PM EDT, a severe thunderstorm was located 10 miles northeast
  of Greenfield, or 11 miles south of Anderson, moving south at 25
  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...
  Shirley, Kennard and Wilkinson around 1000 PM EDT.

Other locations in the path of this severe thunderstorm include
Knightstown and Carthage.

This includes Interstate 70 between mile markers 105 and 119.
 
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 3971 8570 3996 8581 4002 8559 3977 8543
TIME...MOT...LOC 0151Z 339DEG 22KT 3993 8567 

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

Ryan

1 follow-up statement

992 
WWUS53 KIND 130206
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
1006 PM EDT Sat Jun 12 2021

INC095-130215-
/O.CAN.KIND.SV.W.0008.000000T0000Z-210613T0215Z/
Madison IN-
1006 PM EDT Sat Jun 12 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MADISON COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3971 8570 3978 8573 3990 8578 3995 8562
      3995 8558 3977 8543
TIME...MOT...LOC 0205Z 339DEG 22KT 3985 8563 

$$

INC059-065-139-130215-
/O.CON.KIND.SV.W.0008.000000T0000Z-210613T0215Z/
Hancock IN-Rush IN-Henry IN-
1006 PM EDT Sat Jun 12 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM EDT
FOR EASTERN HANCOCK...NORTHWESTERN RUSH AND SOUTHWESTERN HENRY
COUNTIES...

At 1005 PM EDT, a severe thunderstorm was located 8 miles northeast
of Greenfield, or 17 miles south of Anderson, moving south at 25 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.

Locations impacted include...
  Knightstown and Carthage.

This includes Interstate 70 between mile markers 105 and 118.
 
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 3971 8570 3978 8573 3990 8578 3995 8562
      3995 8558 3977 8543
TIME...MOT...LOC 0205Z 339DEG 22KT 3985 8563 

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

Ryan

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 12, 8:28 PM EDT	Special Weather Statement	IND	Clinton	32 min
Jun 12, 8:41 PM EDT	Special Weather Statement	IND	Shelby	34 min
Jun 12, 8:57 PM EDT	Special Weather Statement	IND	Madison	33 min
Jun 12, 9:08 PM EDT	Severe Thunderstorm Warning	IND	Delaware, Henry, Madison	37 min
Jun 12, 9:23 PM EDT	Special Weather Statement	IND	Boone, Montgomery	37 min
Jun 12, 9:34 PM EDT	Special Weather Statement	IND	Hancock, Henry, Randolph	26 min
Jun 12, 10:15 PM EDT	Special Weather Statement	IND	Hancock, Henry, Rush, Shelby	45 min
Jun 12, 10:16 PM EDT	Special Weather Statement	IND	Randolph	29 min
Jun 12, 10:27 PM EDT	Severe Thunderstorm Warning	IND	Randolph	33 min
Jun 12, 10:32 PM EDT	Flash Flood Warning	IND	Randolph	3 hr
Jun 12, 10:40 PM EDT	Special Weather Statement	IND	Marion	35 min
Jun 12, 10:43 PM EDT	Severe Thunderstorm Warning	IND	Hancock, Johnson, Marion	32 min
Jun 12, 10:55 PM EDT	Severe Thunderstorm Warning	IND	Hancock, Shelby	23 min
Jun 12, 11:15 PM EDT	Flash Flood Warning	IND	Marion	3 hr
Jun 12, 11:23 PM EDT	Special Weather Statement	IND	Johnson, Marion, Shelby	37 min
Jun 13, 8:41 AM EDT	River Flood Warning	IND	Delaware, Randolph	3 hr

Nearby

Severe Thunderstorm Warnings in Indiana, 2021 Every 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.