Alert archive / Indiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 17, NWS Indianapolis, IN

June 18, 20214 counties in Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jun 18, 2021, 6:55 PM EDT for 4 counties in Indiana. It was in force for 50 min. 6 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, 6:55 PM EDT (22:55 UTC)
Expired: Jun 18, 2021, 7:45 PM EDT
In force: 50 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.75 in
Wind: 60.0 mph

Counties Clay County, IN, Morgan County, IN, Owen County, IN, Putnam County, IN

The radar

The Indianapolis radar (KIND), 53 km from the middle of the area, began a volume at 22:59 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, 7:12 PM EDT	HAIL 1.75	2 Ene Putnamville, IN
Jun 18, 7:22 PM EDT	HAIL 2	3 Ene Putnamville, IN
Jun 18, 7:26 PM EDT	HAIL 2.5	1 Ese Cloverdale, IN
Jun 18, 7:30 PM EDT	HAIL 2.5	Cloverdale, IN	TIME ESTIMATED FROM RADAR. SIZE ESTIMATED FROM PHOTO.
Jun 18, 7:30 PM EDT	HAIL 3	4 N Quincy, IN	TIME ESTIMATED FROM RADAR. REPORT FROM 775 EAST.
Jun 18, 7:40 PM EDT	HAIL 1.75	4 W Eminence, IN	LARGE TREE DOWN AS WELL.

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

Lincoln, IL (KILX), launched 12:00Z, 10.9 hours before the alert went out and 173 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: 1125 J/kg
Mixed-layer CIN: -257 J/kg
Mixed-layer LCL: 1976 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 251 m²/s²
0-3 km storm-relative helicity: 269 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

489 
WUUS53 KIND 182255
SVRIND
INC021-109-119-133-182345-
/O.NEW.KIND.SV.W.0017.210618T2255Z-210618T2345Z/

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

The National Weather Service in Indianapolis has issued a

* Severe Thunderstorm Warning for...
  Southwestern Morgan County in central Indiana...
  Northeastern Clay County in west central Indiana...
  Eastern Owen County in west central Indiana...
  Southern Putnam County in west central Indiana...

* Until 745 PM EDT.

* At 655 PM EDT, a severe thunderstorm was located 8 miles east of
  Brazil, or 22 miles east of Terre Haute, 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.

* This severe thunderstorm will be near...
  Cloverdale and Cagles Mill Lake around 710 PM EDT.

Other locations in the path of this severe thunderstorm include
Devore, Quincy, Spencer, Gosport and Paragon.

This includes Interstate 70 between mile markers 28 and 50.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3961 8704 3961 8701 3963 8701 3967 8698
      3951 8645 3934 8659 3934 8663 3936 8665
      3934 8666 3933 8666 3934 8669 3923 8668
      3921 8670 3952 8711
TIME...MOT...LOC 2255Z 307DEG 27KT 3956 8697 

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

TDUD

1 follow-up statement

622 
WWUS53 KIND 182320
SVSIND

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

INC021-182329-
/O.CAN.KIND.SV.W.0017.000000T0000Z-210618T2345Z/
Clay IN-
720 PM EDT Fri Jun 18 2021

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

A Severe Thunderstorm Watch remains in effect until 200 AM EDT for
south central, central and west central Indiana.

LAT...LON 3956 8694 3960 8692 3964 8688 3951 8645
      3934 8659 3934 8663 3936 8665 3934 8666
      3933 8666 3934 8669 3923 8668 3921 8670
      3939 8694
TIME...MOT...LOC 2319Z 302DEG 15KT 3955 8682 

$$

INC109-119-133-182345-
/O.CON.KIND.SV.W.0017.000000T0000Z-210618T2345Z/
Morgan IN-Owen IN-Putnam IN-
720 PM EDT Fri Jun 18 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR SOUTHWESTERN MORGAN...EASTERN OWEN AND SOUTHERN PUTNAM
COUNTIES...

At 719 PM EDT, a severe thunderstorm was located near Greencastle, or
30 miles east of Terre Haute, moving southeast at 20 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...
  Cloverdale, Belle Union, Quincy, Devore, Little Point, Eminence, 
  Gosport and Paragon.

This includes Interstate 70 between mile markers 34 and 50.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3956 8694 3960 8692 3964 8688 3951 8645
      3934 8659 3934 8663 3936 8665 3934 8666
      3933 8666 3934 8669 3923 8668 3921 8670
      3939 8694
TIME...MOT...LOC 2319Z 302DEG 15KT 3955 8682 

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, 6:42 PM EDT	Severe Thunderstorm Warning	IND	Hamilton, Hancock, Marion	33 min
Jun 18, 6:53 PM EDT	Severe Thunderstorm Warning	IND	Randolph	37 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.