Alert archive / Indiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 78, NWS Indianapolis, IN

August 30, 2021Delaware County, Henry County, Randolph County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Aug 30, 2021, 12:25 AM EDT for Delaware County, Henry County, Randolph County, Indiana. It was in force for 65 min. 2 reports 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 30, 2021, 12:25 AM EDT (04:25 UTC)
Expired: Aug 30, 2021, 1:30 AM EDT
In force: 65 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Delaware County, IN, Henry County, IN, Randolph County, IN

The radar

The Indianapolis radar (KIND), 98 km from the middle of the area, began a volume at 04:25 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 30, 12:40 AM EDT	TSTM WND DMG	Farmland, IN	TREE DOWN ON POWERLINES.
Aug 30, 1:14 AM EDT	TSTM WND DMG	Lynn, IN	STREET SIGN DOWN.

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 00:00Z, 4.4 hours before the alert went out and 148 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: 1343 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 1296 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 72 m²/s²
0-3 km storm-relative helicity: 109 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

825 
WUUS53 KIND 300425
SVRIND
INC035-065-135-300530-
/O.NEW.KIND.SV.W.0078.210830T0425Z-210830T0530Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Indianapolis IN
1225 AM EDT Mon Aug 30 2021

The National Weather Service in Indianapolis has issued a

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

* Until 130 AM EDT.

* At 1225 AM EDT, a severe thunderstorm was located near Muncie,
  moving east at 40 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* This severe thunderstorm will be near...
  Selma around 1230 AM EDT.
  Parker City, Losantville and Blountsville around 1235 AM EDT.
  Farmland and Modoc around 1240 AM EDT.

Other locations in the path of this severe thunderstorm include
Winchester, Lynn and Union City.

This includes Interstate 69 between mile markers 231 and 246.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 4001 8558 4030 8558 4031 8480 4001 8481
TIME...MOT...LOC 0425Z 270DEG 37KT 4012 8533 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

NIELD

3 follow-up statements

385 
WWUS53 KIND 300445
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
1245 AM EDT Mon Aug 30 2021

INC035-065-135-300530-
/O.CON.KIND.SV.W.0078.000000T0000Z-210830T0530Z/
Delaware IN-Randolph IN-Henry IN-
1245 AM EDT Mon Aug 30 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 AM EDT
FOR DELAWARE...RANDOLPH AND NORTHERN HENRY COUNTIES...

At 1245 AM EDT, a severe thunderstorm was located 9 miles west of
Winchester, or 12 miles east of Muncie, moving east at 35 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
  Winchester, Lynn, Saratoga and Union City.

This includes Interstate 69 between mile markers 231 and 246.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 4001 8558 4030 8558 4031 8480 4001 8481
TIME...MOT...LOC 0445Z 268DEG 32KT 4014 8516 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

NIELD

323 
WWUS53 KIND 300459
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
1259 AM EDT Mon Aug 30 2021

INC035-065-300509-
/O.CAN.KIND.SV.W.0078.000000T0000Z-210830T0530Z/
Delaware IN-Henry IN-
1259 AM EDT Mon Aug 30 2021

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

LAT...LON 4001 8521 4031 8522 4031 8480 4001 8481
TIME...MOT...LOC 0459Z 268DEG 32KT 4015 8500 

$$

INC135-300530-
/O.CON.KIND.SV.W.0078.000000T0000Z-210830T0530Z/
Randolph IN-
1259 AM EDT Mon Aug 30 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 AM EDT
FOR RANDOLPH COUNTY...

At 1259 AM EDT, a severe thunderstorm was located over Winchester, or
19 miles southeast of Dunkirk, moving east at 35 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

This severe storm will be near...
  Saratoga around 105 AM EDT.

Other locations in the path of this severe thunderstorm include Union
City.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 4001 8521 4031 8522 4031 8480 4001 8481
TIME...MOT...LOC 0459Z 268DEG 32KT 4015 8500 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

NIELD

463 
WWUS53 KIND 300529
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
129 AM EDT Mon Aug 30 2021

INC135-300539-
/O.EXP.KIND.SV.W.0078.000000T0000Z-210830T0530Z/
Randolph IN-
129 AM EDT Mon Aug 30 2021

...THE SEVERE THUNDERSTORM WARNING FOR RANDOLPH COUNTY WILL EXPIRE AT
130 AM EDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.  However heavy rain is still possible with this
thunderstorm.

LAT...LON 4001 8521 4031 8522 4031 8480 4001 8481
TIME...MOT...LOC 0529Z 270DEG 37KT 4015 8462 

$$

NIELD

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 29, 10:19 PM EDT	Special Weather Statement	IND	Hamilton, Madison	26 min
Aug 29, 10:43 PM EDT	Special Weather Statement	IND	Delaware	47 min
Aug 29, 11:00 PM EDT	Special Weather Statement	IND	Martin	30 min
Aug 29, 11:23 PM EDT	Special Weather Statement	IND	Hamilton, Madison	37 min
Aug 30, 12:13 AM EDT	Special Weather Statement	IND	Delaware, Madison, Randolph	62 min
Aug 30, 12:15 AM EDT	Special Weather Statement	IND	Jackson	60 min
Aug 30, 1:18 AM EDT	Areal Flood Advisory	IND	Delaware, Henry, Madison, Randolph	4 hr
Aug 30, 3:45 AM EDT	Areal Flood Advisory	IND	Clinton, Fountain, Tippecanoe	4 hr
Aug 30, 4:42 PM EDT	Special Weather Statement	IND	Morgan	33 min
Aug 30, 5:42 PM EDT	Areal Flood Warning	IND	Monroe	3 hr
Aug 30, 5:57 PM EDT	Areal Flood Warning	IND	Martin	3 hr
Aug 30, 6:21 PM EDT	Areal Flood Warning	IND	Brown, Jackson, Lawrence	3 hr
Aug 30, 6:53 PM EDT	Areal Flood Warning	IND	Jackson, Lawrence, Martin	5 hr

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.