Alert archive / Indiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 15, NWS Indianapolis, IN

June 18, 2021Hamilton County, Hancock County, Marion County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jun 18, 2021, 6:42 PM EDT for Hamilton County, Hancock County, Marion County, Indiana. It was in force for 33 min. 31 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 18, 2021, 6:42 PM EDT (22:42 UTC)
Expired: Jun 18, 2021, 7:15 PM EDT
In force: 33 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Hamilton County, IN, Hancock County, IN, Marion County, IN

The radar

The Indianapolis radar (KIND), 36 km from the middle of the area, began a volume at 22:46 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 18, 6:42 PM EDT	HAIL 0.88	1 Ene Nora, IN
Jun 18, 6:42 PM EDT	HAIL 1	2 Nnw Nora, IN
Jun 18, 6:44 PM EDT	HAIL 1.25	2 S Carmel, IN
Jun 18, 6:45 PM EDT	HAIL 0.88	2 Se Nora, IN
Jun 18, 6:45 PM EDT	HAIL 1	Fishers, IN	1.00 INCH HAIL IN FISHERS. SIZE ESTIMATED FROM PHOTO.
Jun 18, 6:47 PM EDT	HAIL 1	1 Se Carmel, IN
Jun 18, 6:48 PM EDT	HAIL 0.5	Fishers, IN
Jun 18, 6:48 PM EDT	HAIL 1	1 W Castleton, IN
Jun 18, 6:50 PM EDT	HAIL 1	1 S Castleton, IN
Jun 18, 6:50 PM EDT	HAIL 1.5	1 Ssw Castleton, IN
Jun 18, 6:50 PM EDT	HAIL 2	1 S Castleton, IN
Jun 18, 6:51 PM EDT	HAIL 1.25	1 N Nora, IN
Jun 18, 6:52 PM EDT	HAIL 0.5	1 Nne Geist Reservoir, IN
Jun 18, 6:53 PM EDT	HAIL 0.5	2 S Castleton, IN
Jun 18, 6:54 PM EDT	HAIL 0.88	1 Nne Mccordsville, IN
Jun 18, 6:55 PM EDT	HAIL 1.75	2 Ne Nora, IN
Jun 18, 6:55 PM EDT	HAIL 1.75	Castleton, IN
Jun 18, 6:55 PM EDT	HAIL 2	Castleton, IN
Jun 18, 6:56 PM EDT	HAIL 1.25	2 S Castleton, IN
Jun 18, 6:57 PM EDT	HAIL 0.5	1 Nne Geist Reservoir, IN
Jun 18, 6:58 PM EDT	HAIL 1	2 Sw Castleton, IN
Jun 18, 6:58 PM EDT	HAIL 1.75	1 W Castleton, IN	ANOTHER CORRECTION TO PREVIOUS HAIL REPORT FROM 1 W CASTLETON. NOW ADDING THAT CARS DAMAGED IN CASTLETON SQUARE MALL.
Jun 18, 6:58 PM EDT	HAIL 1.75	1 W Castleton, IN
Jun 18, 6:59 PM EDT	TSTM WND DMG	Fortville, IN	TREE DOWN ACROSS ROAD. REPORTS OF STORM RELATED POWER OUTAGES ACROSS TOWN AS WELL. TIME ESTIMATED FROM RADAR.
Jun 18, 7:00 PM EDT	HAIL 1	2 N Mccordsville, IN
Jun 18, 7:00 PM EDT	HAIL 2	1 Sse Castleton, IN	TIME ESTIMATED FROM RADAR.
Jun 18, 7:02 PM EDT	HAIL 1	Mccordsville, IN
Jun 18, 7:07 PM EDT	HAIL 2	1 Sse Geist Reservoir, IN
Jun 18, 7:10 PM EDT	HAIL 1.75	Lawrence, IN	TIME ESTIMATED FROM RADAR. SOCIAL MEDIA POST FROM LAWRENCE. PHOTO WITH TWO 1.75 INCH STONES NEXT TO A QUARTER. SEVERAL OTHER STONES 1.00 TO 1.50 INCHES.
Jun 18, 7:20 PM EDT	HAIL 1.75	3 Ene Warren Park, IN
Jun 18, 7:21 PM EDT	HAIL 0.7	3 S Fortville, 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.

Issued	Product	Office	Lasted
Jun 18, 6:23 PM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 10.7 hours before the alert went out and 188 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1560 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 110 m²/s²
0-3 km storm-relative helicity: 97 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

898 
WUUS53 KIND 182242
SVRIND
INC057-059-097-182315-
/O.NEW.KIND.SV.W.0015.210618T2242Z-210618T2315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Indianapolis IN
642 PM EDT Fri Jun 18 2021

The National Weather Service in Indianapolis has issued a

* Severe Thunderstorm Warning for...
  Western Hancock County in central Indiana...
  Northeastern Marion County in central Indiana...
  Southeastern Hamilton County in central Indiana...

* Until 715 PM EDT.

* At 642 PM EDT, a severe thunderstorm was located near Carmel, or 7
  miles north of Indianapolis, moving southeast at 45 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...
  Warren Park and Geist Reservoir around 650 PM EDT.
  Lawrence and McCordsville around 655 PM EDT.
  Cumberland around 700 PM EDT.

Other locations in the path of this severe thunderstorm include New
Palestine and Spring Lake.

This includes the following highways...
 Interstate 69 between mile markers 200 and 208.
 Interstate 70 between mile markers 87 and 101.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3970 8588 3988 8623 4001 8612 3996 8586
      3994 8586 3995 8581 3993 8573
TIME...MOT...LOC 2242Z 304DEG 39KT 3989 8612 

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

TDUD

2 follow-up statements

722 
WWUS53 KIND 182251
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
651 PM EDT Fri Jun 18 2021

INC057-059-097-182315-
/O.CON.KIND.SV.W.0015.000000T0000Z-210618T2315Z/
Hancock IN-Marion IN-Hamilton IN-
651 PM EDT Fri Jun 18 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR WESTERN HANCOCK...NORTHEASTERN MARION AND SOUTHEASTERN HAMILTON
COUNTIES...

At 651 PM EDT, a severe thunderstorm was located over Lawrence, or 10
miles northeast of Indianapolis, moving southeast at 40 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 storm will be near...
  McCordsville around 655 PM EDT.
  Cumberland and Fortville around 700 PM EDT.

Other locations in the path of this severe thunderstorm include New
Palestine and Spring Lake.

This includes the following highways...
 Interstate 69 between mile markers 200 and 208.
 Interstate 70 between mile markers 87 and 101.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3970 8588 3985 8616 4000 8605 3996 8586
      3994 8586 3995 8581 3993 8573
TIME...MOT...LOC 2251Z 295DEG 35KT 3988 8599 

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

TDUD

691 
WWUS53 KIND 182302
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
702 PM EDT Fri Jun 18 2021

INC057-059-097-182315-
/O.CON.KIND.SV.W.0015.000000T0000Z-210618T2315Z/
Hancock IN-Marion IN-Hamilton IN-
702 PM EDT Fri Jun 18 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR WESTERN HANCOCK...NORTHEASTERN MARION AND SOUTHEASTERN HAMILTON
COUNTIES...

At 702 PM EDT, a severe thunderstorm was located near Lawrence, or 12
miles northeast of Indianapolis, moving southeast at 30 mph.

HAZARD...Golf ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

Locations impacted include...
  New Palestine and Spring Lake.

This includes the following highways...
 Interstate 69 between mile markers 207 and 208.
 Interstate 70 between mile markers 88 and 101.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3970 8588 3982 8610 3998 8597 3996 8586
      3994 8586 3995 8581 3993 8573
TIME...MOT...LOC 2302Z 301DEG 27KT 3985 8592 

HAIL...1.75IN
WIND...60MPH
 
$$

TDUD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 18, 9:38 AM EDT	Special Weather Statement	IND	Henry	37 min
Jun 18, 2:10 PM EDT	Special Weather Statement	IND	Carroll	35 min
Jun 18, 2:48 PM EDT	Flash Flood Watch	IND	Bartholomew, Boone, Brown, Clay, Decatur, Delaware and 21 more	19 hr
Jun 18, 3:27 PM EDT	Severe Thunderstorm Warning	IND	Delaware, Henry, Randolph	33 min
Jun 18, 4:26 PM EDT	Severe Thunderstorm Warning	IND	Delaware, Randolph	34 min
Jun 18, 5:04 PM EDT	Severe Thunderstorm Warning	IND	Randolph	26 min
Jun 18, 6:53 PM EDT	Severe Thunderstorm Warning	IND	Randolph	37 min
Jun 18, 6:55 PM EDT	Severe Thunderstorm Warning	IND	Clay, Morgan, Owen, Putnam	50 min
Jun 18, 7:15 PM EDT	Severe Thunderstorm Warning	IND	Hancock, Henry, Madison, Marion, Rush	60 min
Jun 18, 7:31 PM EDT	Severe Thunderstorm Warning	IND	Hancock, Marion, Rush, Shelby	44 min
Jun 18, 7:45 PM EDT	Severe Thunderstorm Warning	IND	Brown, Monroe, Morgan, Owen	45 min
Jun 18, 7:56 PM EDT	Tornado Warning	IND	Shelby	13 min

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.