Alert archive / Indiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 48, NWS Indianapolis, IN

July 8, 2021Lawrence County, Martin County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 8, 2021, 4:54 PM EDT for Lawrence County, Martin County, Indiana. It was in force for 21 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 8, 2021, 4:54 PM EDT (20:54 UTC)
Expired: Jul 8, 2021, 5:15 PM EDT
In force: 21 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Lawrence County, IN, Martin County, IN

The radar

The Louisville radar (KLVX), 103 km from the middle of the area, began a volume at 20:54 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.

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 8.9 hours before the alert went out and 231 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: 764 J/kg
Mixed-layer CIN: -59 J/kg
Mixed-layer LCL: 748 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 47 m²/s²
0-3 km storm-relative helicity: 52 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

As transmitted.

735 
WUUS53 KIND 082054
SVRIND
INC093-101-082115-
/O.NEW.KIND.SV.W.0048.210708T2054Z-210708T2115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Indianapolis IN
454 PM EDT Thu Jul 8 2021

The National Weather Service in Indianapolis has issued a

* Severe Thunderstorm Warning for...
  East central Martin County in southwestern Indiana...
  Southwestern Lawrence County in south central Indiana...

* Until 515 PM EDT.

* At 453 PM EDT, a severe thunderstorm was located 7 miles northeast
  of Shoals, or 13 miles southwest of Bedford, moving southeast at 20
  mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* This severe thunderstorm will remain over mainly rural areas of
  east central Martin and southwestern Lawrence Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

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

&&

LAT...LON 3870 8678 3880 8670 3869 8640 3869 8668
      3865 8668
TIME...MOT...LOC 2053Z 293DEG 18KT 3872 8667 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
 
$$

AU/MK

1 follow-up statement

009 
WWUS53 KIND 082120
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
520 PM EDT Thu Jul 8 2021

INC093-101-082129-
/O.EXP.KIND.SV.W.0048.000000T0000Z-210708T2115Z/
Martin IN-Lawrence IN-
520 PM EDT Thu Jul 8 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL MARTIN AND
SOUTHWESTERN LAWRENCE COUNTIES HAS EXPIRED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been allowed to expire.

LAT...LON 3870 8678 3880 8670 3869 8640 3869 8668
      3865 8668
TIME...MOT...LOC 2119Z 293DEG 18KT 3867 8652 

$$

AU/MK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 8, 5:18 AM EDT	Special Weather Statement	IND	Clinton, Tippecanoe	42 min
Jul 8, 5:26 AM EDT	Special Weather Statement	IND	Warren	49 min
Jul 8, 5:46 AM EDT	Areal Flood Advisory	IND	Tippecanoe, Warren	3 hr
Jul 8, 12:10 PM EDT	Special Weather Statement	IND	Hancock	35 min
Jul 8, 12:40 PM EDT	Special Weather Statement	IND	Rush	50 min
Jul 8, 12:54 PM EDT	Severe Thunderstorm Warning	IND	Rush	36 min
Jul 8, 1:28 PM EDT	Severe Thunderstorm Warning	IND	Decatur, Rush	32 min
Jul 8, 1:51 PM EDT	Special Weather Statement	IND	Putnam	54 min
Jul 8, 2:21 PM EDT	Areal Flood Advisory	IND	Decatur	3 hr
Jul 8, 2:30 PM EDT	Special Weather Statement	IND	Hendricks, Morgan	45 min
Jul 8, 2:58 PM EDT	Special Weather Statement	IND	Johnson, Marion	47 min
Jul 8, 3:00 PM EDT	Flash Flood Warning	IND	Decatur	3 hr
Jul 8, 3:42 PM EDT	Severe Thunderstorm Warning	IND	Jennings	48 min
Jul 8, 4:32 PM EDT	Special Weather Statement	IND	Brown, Monroe	28 min
Jul 8, 4:34 PM EDT	Special Weather Statement	IND	Jennings	26 min
Jul 8, 4:58 PM EDT	Special Weather Statement	IND	Jackson	32 min
Jul 8, 5:18 PM EDT	Special Weather Statement	IND	Henry	27 min
Jul 8, 5:22 PM EDT	Special Weather Statement	IND	Jackson	23 min
Jul 8, 5:49 PM EDT	Special Weather Statement	IND	Jackson	26 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.