Alert archive / Indiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 64, NWS Indianapolis, IN

August 7, 2021Randolph County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Aug 7, 2021, 6:16 PM EDT for Randolph County, Indiana. It was in force for 34 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: Aug 7, 2021, 6:16 PM EDT (22:16 UTC)
Expired: Aug 7, 2021, 6:50 PM EDT
In force: 34 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

County Randolph County, IN

The radar

The Indianapolis radar (KIND), 112 km from the middle of the area, began a volume at 22:17 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
Aug 7, 6:32 PM EDT	HAIL 1.25	2 S Modoc, IN	REPORT FROM MPING: HALF DOLLAR (1.25 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 12:00Z, 10.3 hours before the alert went out and 126 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: 815 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 973 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 26 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

767 
WUUS53 KIND 072216
SVRIND
INC135-072300-
/O.NEW.KIND.SV.W.0064.210807T2216Z-210807T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Indianapolis IN
616 PM EDT Sat Aug 7 2021

The National Weather Service in Indianapolis has issued a

* Severe Thunderstorm Warning for...
  Southern Randolph County in east central Indiana...

* Until 700 PM EDT.

* At 616 PM EDT, a severe thunderstorm was located 9 miles southwest
  of Winchester, or 15 miles north of Centerville, moving south at 20
  mph.

  HAZARD...Quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

* This severe thunderstorm will be near...
  Lynn around 625 PM EDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4000 8521 4010 8522 4014 8499 4002 8481
      4001 8481
TIME...MOT...LOC 2216Z 339DEG 15KT 4005 8507 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH

$$

TDUD

3 follow-up statements

570 
WWUS53 KIND 072227
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
627 PM EDT Sat Aug 7 2021

INC135-072300-
/O.CON.KIND.SV.W.0064.000000T0000Z-210807T2300Z/
Randolph IN-
627 PM EDT Sat Aug 7 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR SOUTHERN RANDOLPH COUNTY...

At 627 PM EDT, a severe thunderstorm was located 9 miles southwest of
Winchester, or 17 miles north of Centerville, moving south at 15 mph.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

This severe storm will be near...
  Modoc around 630 PM EDT.
  Losantville around 635 PM EDT.

Other locations in the path of this severe thunderstorm include Lynn.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4000 8521 4010 8522 4014 8499 4002 8481
      4001 8481
TIME...MOT...LOC 2227Z 343DEG 11KT 4007 8510 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH

$$

TDUD

946 
WWUS53 KIND 072238
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
638 PM EDT Sat Aug 7 2021

INC135-072300-
/O.CON.KIND.SV.W.0064.000000T0000Z-210807T2300Z/
Randolph IN-
638 PM EDT Sat Aug 7 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR SOUTHERN RANDOLPH COUNTY...

At 638 PM EDT, a severe thunderstorm was located 8 miles northeast of
Hagerstown, or 14 miles north of Centerville, moving south at 15 mph.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

This severe thunderstorm will remain over mainly rural areas of
southern Randolph County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4000 8521 4010 8522 4014 8499 4002 8481
      4001 8481
TIME...MOT...LOC 2238Z 339DEG 15KT 4002 8508 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH

$$

TDUD

921 
WWUS53 KIND 072250
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
650 PM EDT Sat Aug 7 2021

INC135-072259-
/O.CAN.KIND.SV.W.0064.000000T0000Z-210807T2300Z/
Randolph IN-
650 PM EDT Sat Aug 7 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN RANDOLPH COUNTY IS
CANCELLED...
                
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 has been cancelled.

LAT...LON 4000 8521 4010 8522 4014 8499 4002 8481
      4001 8481
TIME...MOT...LOC 2246Z 339DEG 15KT 3997 8506 

$$

TDUD

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 7, 4:43 PM EDT	Severe Thunderstorm Warning	IND	Randolph	47 min
Aug 7, 5:42 PM EDT	Severe Thunderstorm Warning	IND	Randolph	33 min
Aug 7, 7:56 PM EDT	Severe Thunderstorm Warning	IND	Rush	49 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.