Alert archive / Indiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 46, NWS Indianapolis, IN

July 8, 2021Decatur County, Rush County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 8, 2021, 1:28 PM EDT for Decatur County, Rush County, Indiana. It was in force for 32 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, 1:28 PM EDT (17:28 UTC)
Expired
Jul 8, 2021, 2:00 PM EDT
In force
32 min
Issued by
NWS Indianapolis, IN
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Decatur County, IN, Rush County, IN

The radar

The Indianapolis radar (KIND), 82 km from the middle of the area, began a volume at 17:29 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 5.5 hours before the alert went out and 142 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-pSkew-T log-p diagram, Cncnati-Daytn, OH at 12:00Z on 2021-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 187 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 12:00Z on 2021-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 36 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
187 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
768 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
36 m²/s²
0-3 km storm-relative helicity
34 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

217 
WUUS53 KIND 081728
SVRIND
INC031-139-081800-
/O.NEW.KIND.SV.W.0046.210708T1728Z-210708T1800Z/

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

The National Weather Service in Indianapolis has issued a

* Severe Thunderstorm Warning for...
  Southeastern Rush County in central Indiana...
  Northern Decatur County in central Indiana...

* Until 200 PM EDT.

* At 127 PM EDT, a severe thunderstorm was located 7 miles northwest 
  of Greensburg, or 13 miles southeast of Shelbyville, moving 
  southeast at 20 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Greensburg, Adams, Milroy, Millhousen, Clarksburg, Sandusky, Lake
  Santee and Newpoint.

This includes Interstate 74 between mile markers 126 and 143.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Wind damage with this storm will occur before any rain or lightning.
Do not wait for the sound of thunder before taking cover. SEEK
SHELTER IMMEDIATELY inside a sturdy structure and stay away from
windows.

&&

LAT...LON 3921 8541 3920 8542 3938 8563 3940 8563
      3952 8547 3949 8530 3935 8530
TIME...MOT...LOC 1727Z 289DEG 16KT 3943 8556 

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

Beachler
2 follow-up statements
890 
WWUS53 KIND 081755
SVSIND

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

INC139-081804-
/O.CAN.KIND.SV.W.0046.000000T0000Z-210708T1800Z/
Rush IN-
155 PM EDT Thu Jul 8 2021

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

LAT...LON 3921 8541 3920 8542 3921 8543 3938 8563
      3945 8553 3945 8531 3935 8530
TIME...MOT...LOC 1754Z 303DEG 7KT 3936 8552 

$$

INC031-081800-
/O.CON.KIND.SV.W.0046.000000T0000Z-210708T1800Z/
Decatur IN-
155 PM EDT Thu Jul 8 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM EDT
FOR NORTHERN DECATUR COUNTY...

At 154 PM EDT, a severe thunderstorm was located over Greensburg, or
16 miles west of Batesville, moving southeast at 10 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Greensburg, Adams, Millhousen, Clarksburg, Sandusky, Lake Santee and
Newpoint.

This includes Interstate 74 between mile markers 128 and 143.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Wind damage with this storm will occur before any rain or lightning.
Do not wait for the sound of thunder before taking cover. SEEK
SHELTER IMMEDIATELY inside a sturdy structure and stay away from
windows.

&&

LAT...LON 3921 8541 3920 8542 3921 8543 3938 8563
      3945 8553 3945 8531 3935 8530
TIME...MOT...LOC 1754Z 303DEG 7KT 3936 8552 

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

Beachler
931 
WWUS53 KIND 081801
SVSIND

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

INC031-081810-
/O.EXP.KIND.SV.W.0046.000000T0000Z-210708T1800Z/
Decatur IN-
201 PM EDT Thu Jul 8 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN DECATUR COUNTY HAS
EXPIRED...
                
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 allowed to expire.  However gusty
winds and heavy rain are still possible with this thunderstorm.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Indianapolis.

LAT...LON 3921 8541 3920 8542 3921 8543 3938 8563
      3945 8553 3945 8531 3935 8530
TIME...MOT...LOC 1800Z 289DEG 16KT 3936 8550 

$$

Beachler

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 5:18 AM EDTSpecial Weather StatementINDClinton, Tippecanoe42 min
Jul 8, 5:26 AM EDTSpecial Weather StatementINDWarren49 min
Jul 8, 5:46 AM EDTAreal Flood AdvisoryINDTippecanoe, Warren3 hr
Jul 8, 12:10 PM EDTSpecial Weather StatementINDHancock35 min
Jul 8, 12:40 PM EDTSpecial Weather StatementINDRush50 min
Jul 8, 12:54 PM EDTSevere Thunderstorm WarningINDRush36 min
Jul 8, 1:51 PM EDTSpecial Weather StatementINDPutnam54 min
Jul 8, 2:21 PM EDTAreal Flood AdvisoryINDDecatur3 hr
Jul 8, 2:30 PM EDTSpecial Weather StatementINDHendricks, Morgan45 min
Jul 8, 2:58 PM EDTSpecial Weather StatementINDJohnson, Marion47 min
Jul 8, 3:00 PM EDTFlash Flood WarningINDDecatur3 hr
Jul 8, 3:42 PM EDTSevere Thunderstorm WarningINDJennings48 min
Jul 8, 4:32 PM EDTSpecial Weather StatementINDBrown, Monroe28 min
Jul 8, 4:34 PM EDTSpecial Weather StatementINDJennings26 min
Jul 8, 4:54 PM EDTSevere Thunderstorm WarningINDLawrence, Martin21 min
Jul 8, 4:58 PM EDTSpecial Weather StatementINDJackson32 min
Jul 8, 5:18 PM EDTSpecial Weather StatementINDHenry27 min
Jul 8, 5:22 PM EDTSpecial Weather StatementINDJackson23 min
Jul 8, 5:49 PM EDTSpecial Weather StatementINDJackson26 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2021Every 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.