Alert archive / Indiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 3, NWS Indianapolis, IN

March 25, 20214 counties in Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Mar 25, 2021, 9:47 PM EDT for 4 counties in Indiana. It was in force for 43 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: Mar 25, 2021, 9:47 PM EDT (01:47 UTC)
Expired: Mar 25, 2021, 10:30 PM EDT
In force: 43 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Brown County, IN, Jackson County, IN, Lawrence County, IN, Monroe County, IN

The radar

The Louisville radar (KLVX), 98 km from the middle of the area, began a volume at 01:47 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Mar 25, 4:48 PM EDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 1.8 hours before the alert went out and 225 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: 1 J/kg
Mixed-layer CIN: -281 J/kg
Mixed-layer LCL: 753 m above ground
0-6 km bulk shear: 75 kt
0-1 km storm-relative helicity: 290 m²/s²
0-3 km storm-relative helicity: 340 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

559 
WUUS53 KIND 260147
SVRIND
INC013-071-093-105-260230-
/O.NEW.KIND.SV.W.0003.210326T0147Z-210326T0230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Indianapolis IN
947 PM EDT Thu Mar 25 2021

The National Weather Service in Indianapolis has issued a

* Severe Thunderstorm Warning for...
  Southeastern Monroe County in south central Indiana...
  Southeastern Brown County in south central Indiana...
  Lawrence County in south central Indiana...
  Western Jackson County in south central Indiana...

* Until 1030 PM EDT.

* At 946 PM EDT, severe thunderstorms were located along a line
  extending from near Bedford to 11 miles west of English, moving
  northeast at 45 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Bedford, Nashville, Mitchell, Oolitic, Medora, Heltonville, Norman,
  Tunnelton, Freetown, Gnaw Bone, Bartlettsville, Spurgeons Corner,
  Avoca, Pleasant View, Spring Mill State Park, Elkinsville, Kurtz,
  Charles Deam Wilderness, Stone Head and Story.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until midnight EDT for south
central Indiana.

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 3895 8656 3934 8609 3878 8610 3876 8612
      3877 8617 3878 8618 3878 8620 3877 8622
      3878 8623 3877 8624 3877 8628 3874 8629
      3873 8631 3869 8631 3869 8663
TIME...MOT...LOC 0146Z 224DEG 41KT 3887 8653 3840 8667 

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

NIELD

3 follow-up statements

237 
WWUS53 KIND 260201
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
1001 PM EDT Thu Mar 25 2021

INC013-071-093-105-260230-
/O.CON.KIND.SV.W.0003.000000T0000Z-210326T0230Z/
Monroe IN-Brown IN-Lawrence IN-Jackson IN-
1001 PM EDT Thu Mar 25 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT
FOR SOUTHEASTERN MONROE...SOUTHEASTERN BROWN...EASTERN LAWRENCE AND
WESTERN JACKSON COUNTIES...

At 1000 PM EDT, severe thunderstorms were located along a line
extending from 9 miles northeast of Bedford to near Paoli, moving 
northeast at 45 mph. The strongest cell with weak circulation is 
just north of the warning polygon.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Bedford, Nashville, Mitchell, Medora, Heltonville, Norman, Tunnelton,
Freetown, Gnaw Bone, Bartlettsville, Spurgeons Corner, Pleasant View,
Spring Mill State Park, Elkinsville, Kurtz, Charles Deam Wilderness,
Stone Head and Story.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until midnight EDT for south
central Indiana.

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 3934 8609 3878 8610 3876 8612 3877 8617
      3878 8618 3878 8620 3877 8622 3878 8623
      3877 8624 3877 8628 3874 8629 3873 8631
      3869 8631 3869 8651 3899 8652
TIME...MOT...LOC 0200Z 224DEG 41KT 3898 8640 3851 8654 

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

AW

699 
WWUS53 KIND 260215
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
1015 PM EDT Thu Mar 25 2021

INC105-260224-
/O.CAN.KIND.SV.W.0003.000000T0000Z-210326T0230Z/
Monroe IN-
1015 PM EDT Thu Mar 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MONROE COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

LAT...LON 3899 8636 3899 8632 3905 8632 3905 8633
      3934 8609 3878 8610 3877 8611 3876 8613
      3877 8617 3878 8618 3878 8620 3877 8622
      3878 8623 3877 8624 3877 8628 3874 8629
      3873 8631 3869 8631 3869 8637
TIME...MOT...LOC 0214Z 225DEG 45KT 3911 8623 3864 8632 

$$

INC013-071-093-260230-
/O.CON.KIND.SV.W.0003.000000T0000Z-210326T0230Z/
Brown IN-Lawrence IN-Jackson IN-
1015 PM EDT Thu Mar 25 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT
FOR EASTERN BROWN...EASTERN LAWRENCE AND WESTERN JACKSON COUNTIES...

At 1014 PM EDT, severe thunderstorms were located along a line
extending from 6 miles south of Nashville to 9 miles northeast of
Paoli, moving northeast at 50 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Nashville, Medora, Spurgeons Corner, Norman, Pleasant View,
Elkinsville, Kurtz, Freetown, Stone Head, Gnaw Bone and Story.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until midnight EDT for south
central Indiana.

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 3899 8636 3899 8632 3905 8632 3905 8633
      3934 8609 3878 8610 3877 8611 3876 8613
      3877 8617 3878 8618 3878 8620 3877 8622
      3878 8623 3877 8624 3877 8628 3874 8629
      3873 8631 3869 8631 3869 8637
TIME...MOT...LOC 0214Z 225DEG 45KT 3911 8623 3864 8632 

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

NIELD

507 
WWUS53 KIND 260223
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
1023 PM EDT Thu Mar 25 2021

INC013-071-093-260232-
/O.EXP.KIND.SV.W.0003.000000T0000Z-210326T0230Z/
Brown IN-Lawrence IN-Jackson IN-
1023 PM EDT Thu Mar 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN BROWN...EASTERN
LAWRENCE AND WESTERN JACKSON COUNTIES WILL EXPIRE AT 1030 PM EDT...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds and heavy rain are still possible with these thunderstorms.

A Tornado Watch remains in effect until midnight EDT for south
central Indiana.

LAT...LON 3899 8636 3899 8632 3905 8632 3905 8633
      3934 8609 3878 8610 3877 8611 3876 8613
      3877 8617 3878 8618 3878 8620 3877 8622
      3878 8623 3877 8624 3877 8628 3874 8629
      3873 8631 3869 8631 3869 8637
TIME...MOT...LOC 0222Z 224DEG 41KT 3917 8616 3870 8625 

$$

NIELD

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 25, 8:08 PM EDT	Special Weather Statement	IND	Daviess	22 min
Mar 25, 8:15 PM EDT	Severe Thunderstorm Warning	IND	Daviess, Greene, Martin	45 min
Mar 25, 8:43 PM EDT	Severe Thunderstorm Warning	IND	Greene, Monroe, Morgan, Owen, Putnam	47 min
Mar 25, 9:15 PM EDT	Special Weather Statement	IND	Hamilton, Marion	45 min
Mar 25, 9:29 PM EDT	Special Weather Statement	IND	Monroe, Morgan	31 min
Mar 25, 9:46 PM EDT	Special Weather Statement	IND	Howard, Tipton	44 min
Mar 25, 10:09 PM EDT	Special Weather Statement	IND	Hamilton, Marion, Tipton	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.