Alert archive / Indiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 81, NWS Indianapolis, IN

September 14, 2021Delaware County, Henry County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Sep 14, 2021, 10:47 PM EDT for Delaware County, Henry County, Indiana. It was in force for 28 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: Sep 14, 2021, 10:47 PM EDT (02:47 UTC)
Expired: Sep 14, 2021, 11:15 PM EDT
In force: 28 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Delaware County, IN, Henry County, IN

The radar

The Indianapolis radar (KIND), 84 km from the middle of the area, began a volume at 02:47 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 00:00Z, 2.8 hours before the alert went out and 147 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: 1109 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 1416 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 80 m²/s²
0-3 km storm-relative helicity: 151 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

Open this sounding in Storm Lab

The text

As transmitted.

283 
WUUS53 KIND 150247
SVRIND
INC035-065-150315-
/O.NEW.KIND.SV.W.0081.210915T0247Z-210915T0315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Indianapolis IN
1047 PM EDT Tue Sep 14 2021

The National Weather Service in Indianapolis has issued a

* Severe Thunderstorm Warning for...
  Southeastern Delaware County in east central Indiana...
  Northern Henry County in east central Indiana...

* Until 1115 PM EDT.

* At 1047 PM EDT, a severe thunderstorm was located 9 miles northwest
  of New Castle, or 11 miles southeast of Anderson, moving east at 20
  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...
  Cadiz around 1050 PM EDT.
  Sulphur Springs around 1055 PM EDT.
  Springport around 1100 PM EDT.
  Mount Summit around 1105 PM EDT.

Other locations in the path of this severe thunderstorm include New
Castle, Mooreland, Blountsville and Summit Lake State Park.

This includes Interstate 70 near mile marker 133.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3985 8522 3996 8558 3997 8558 4011 8552
      4008 8521 4001 8521
TIME...MOT...LOC 0247Z 288DEG 18KT 4002 8549 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

MK

2 follow-up statements

303 
WWUS53 KIND 150306
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
1106 PM EDT Tue Sep 14 2021

INC035-150315-
/O.CAN.KIND.SV.W.0081.000000T0000Z-210915T0315Z/
Delaware IN-
1106 PM EDT Tue Sep 14 2021

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

LAT...LON 3985 8522 3993 8547 4000 8542 4008 8537
      4008 8521 4000 8521
TIME...MOT...LOC 0305Z 288DEG 18KT 3999 8538 

$$

INC065-150315-
/O.CON.KIND.SV.W.0081.000000T0000Z-210915T0315Z/
Henry IN-
1106 PM EDT Tue Sep 14 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM EDT
FOR NORTHEASTERN HENRY COUNTY...

At 1105 PM EDT, a severe thunderstorm was located near New Castle, or
14 miles south of Muncie, moving east at 20 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.

Locations impacted include...
  New Castle, Summit Lake State Park, Blountsville and Mooreland.

This includes Interstate 70 near mile marker 133.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3985 8522 3993 8547 4000 8542 4008 8537
      4008 8521 4000 8521
TIME...MOT...LOC 0305Z 288DEG 18KT 3999 8538 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

MK

560 
WWUS53 KIND 150314
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
1114 PM EDT Tue Sep 14 2021

INC065-150324-
/O.EXP.KIND.SV.W.0081.000000T0000Z-210915T0315Z/
Henry IN-
1114 PM EDT Tue Sep 14 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN HENRY COUNTY WILL
EXPIRE AT 1115 PM EDT...
                
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 will be allowed to expire.  However small
hail, gusty winds and heavy rain are still possible with this
thunderstorm.

LAT...LON 3985 8522 3993 8547 4000 8542 4008 8537
      4008 8521 4000 8521
TIME...MOT...LOC 0314Z 288DEG 18KT 3998 8533 

$$

MK

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 14, 8:26 PM EDT	Special Weather Statement	IND	Clinton	34 min
Sep 14, 9:47 PM EDT	Special Weather Statement	IND	Delaware	28 min
Sep 14, 10:05 PM EDT	Severe Thunderstorm Warning	IND	Delaware, Randolph	25 min
Sep 14, 10:28 PM EDT	Severe Thunderstorm Warning	IND	Delaware	32 min
Sep 14, 11:18 PM EDT	Special Weather Statement	IND	Rush	27 min
Sep 14, 11:45 PM EDT	Special Weather Statement	IND	Rush	30 min
Sep 14, 11:53 PM EDT	Areal Flood Advisory	IND	Hancock, Hendricks, Johnson, Marion, Morgan, Rush and 1 more	3 hr
Sep 14, 11:57 PM EDT	Areal Flood Advisory	IND	Delaware, Henry, Randolph	3 hr
Sep 15, 12:03 AM EDT	Special Weather Statement	IND	Shelby	27 min
Sep 15, 12:39 AM EDT	Special Weather Statement	IND	Rush	36 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.