Alert archive / Indiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 87, NWS Northern Indiana

August 11, 20219 counties in Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Aug 11, 2021, 1:17 PM EDT for 9 counties in Indiana. It was in force for 43 min. 11 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 11, 2021, 1:17 PM EDT (17:17 UTC)
Expired
Aug 11, 2021, 2:00 PM EDT
In force
43 min
Issued by
NWS Northern Indiana
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Allen County, IN, DeKalb County, IN, Elkhart County, IN, Huntington County, IN, Kosciusko County, IN, Miami County, IN, Noble County, IN, Wabash County, IN, Whitley County, IN

The radar

The Northern Indiana radar (KIWX), 36 km from the middle of the area, began a volume at 17:18 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

TimeReportWhereRemark
Aug 11, 1:18 PM EDTTSTM WND DMG1 E Big Barbee Lake, INSMALL TREE DOWNED ACROSS SR-13 (ABOUT 1 FT DIAMETER). TREE APPEARED HEALTHY.
Aug 11, 1:30 PM EDTTSTM WND DMG1 N Columbia City, INTRAMPOLINE STRUCTURE LOFTED. LIKELY ROTTED, TREE FELL ON US 30.
Aug 11, 1:30 PM EDTTSTM WND DMG1 N Tri-Lakes, INDELAYED REPORT. HEALTHY PINE TREE OF AROUND 1 TO 2 FT IN DIAMETER SNAPPED IN HALF. NUMEROUS LIMBS RANGING FROM 3 INCHES TO 1 FT IN DIAMETER DOWNED.
Aug 11, 1:30 PM EDTTSTM WND DMGColumbia City, INCONFIRMED 8 INCH DIAMETER TREE BRANCH DOWN. ESTIMATED 50-60 MPH WIND GUSTS.
Aug 11, 1:30 PM EDTTSTM WND DMGLarwill, INCORRECTS PREVIOUS TSTM WND DMG REPORT FROM LARWILL. MANGLED TRAMPOLINE IN THE CENTER DIVIDE ON US 30 NEAR SR 5.
Aug 11, 1:33 PM EDTTSTM WND GST 521 Ene Peabody, IN
Aug 11, 1:45 PM EDTTSTM WND DMG1 Ne Churubusco, INCORRECTS TIME OF PREVIOUS TSTM WND DMG REPORT FROM 1 NE CHURUBUSCO. TREE DOWN ON TOP OF POWER LINES.
Aug 11, 1:48 PM EDTTSTM WND GST 474 Ssw Huntington, INMESONET STATION CW9663 HUNTINGTON.
Aug 11, 1:50 PM EDTTSTM WND DMG2 Nw Fort Wayne, INDELAYED REPORT. A TREE LIMB BROKE THROUGH A WINDOW AT A MANUFACTURING PLANT. NO INJURIES.
Aug 11, 2:09 PM EDTTSTM WND DMG1 Ne Churubusco, INTREE DOWN ON TOP OF POWER LINES.
Aug 11, 2:10 PM EDTTSTM WND DMG3 Sse Wallen, INTREE DOWN ON WELLS ST. REPORTED THROUGH FACEBOOK.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

IssuedProductOfficeLasted
Aug 11, 11:50 AM EDTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 5.3 hours before the alert went out and 245 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 2021-08-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1853 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 2021-08-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 square meters per square second.1939Sfc1 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
1853 J/kg
Mixed-layer CIN
-70 J/kg
Mixed-layer LCL
1037 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
71 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

617 
WUUS53 KIWX 111717
SVRIWX
INC003-033-039-069-085-103-113-169-183-111800-
/O.NEW.KIWX.SV.W.0087.210811T1717Z-210811T1800Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Northern Indiana
117 PM EDT Wed Aug 11 2021

The National Weather Service in Northern Indiana has issued a

* Severe Thunderstorm Warning for...
  Southeastern Elkhart County in north central Indiana...
  Northwestern Allen County in northeastern Indiana...
  Wabash County in north central Indiana...
  Noble County in northeastern Indiana...
  Whitley County in northeastern Indiana...
  Western De Kalb County in northeastern Indiana...
  Huntington County in northeastern Indiana...
  Eastern Kosciusko County in north central Indiana...
  Central Miami County in north central Indiana...

* Until 200 PM EDT.

* At 116 PM EDT, severe thunderstorms were located along a line
  extending from near New Paris to Pierceton to near Mexico, moving
  east at 50 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Fort Wayne, Huntington, Warsaw, Peru, Wabash, Kendallville,
  Columbia City, Garrett, North Manchester, Winona Lake, Ligonier,
  Syracuse, Tri-lakes, Huntertown, Avilla, Albion, Churubusco, South
  Whitley, Milford and Rome City.

This includes Interstate 69 in Indiana between mile markers 300 and
312, and between mile markers 315 and 326.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Northern Indiana.

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

&&

LAT...LON 4073 8617 4078 8617 4100 8595 4119 8579
      4150 8587 4152 8515 4122 8505 4071 8555
TIME...MOT...LOC 1716Z 264DEG 44KT 4147 8583 4119 8573 4079 8615 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

CM
2 follow-up statements
640 
WWUS53 KIWX 111742
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
142 PM EDT Wed Aug 11 2021

INC003-033-039-069-085-103-113-169-183-111800-
/O.CON.KIWX.SV.W.0087.000000T0000Z-210811T1800Z/
Elkhart IN-Allen IN-Wabash IN-Noble IN-Whitley IN-De Kalb IN-
Huntington IN-Kosciusko IN-Miami IN-
142 PM EDT Wed Aug 11 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM EDT
FOR SOUTHEASTERN ELKHART...NORTHWESTERN ALLEN...WABASH...NOBLE...
WHITLEY...WESTERN DE KALB...HUNTINGTON...EASTERN KOSCIUSKO AND
CENTRAL MIAMI COUNTIES...

At 142 PM EDT, severe thunderstorms were located along a line
extending from near Rome City to Churubusco to near Wabash, moving
east at 50 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Fort Wayne, Huntington, Peru, Wabash, Kendallville, Columbia City,
Garrett, North Manchester, Ligonier, Tri-lakes, Huntertown, Avilla,
Albion, Churubusco, South Whitley, Rome City, Andrews, North Webster,
Pierceton and Aboite.

This includes Interstate 69 in Indiana between mile markers 300 and
312, and between mile markers 315 and 326.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Northern Indiana.

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

&&

LAT...LON 4073 8610 4104 8588 4121 8576 4150 8568
      4152 8515 4122 8505 4071 8555
TIME...MOT...LOC 1742Z 270DEG 44KT 4150 8543 4122 8533 4082 8575 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

CM
693 
WWUS53 KIWX 111750
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
150 PM EDT Wed Aug 11 2021

INC039-085-103-111800-
/O.CAN.KIWX.SV.W.0087.000000T0000Z-210811T1800Z/
Elkhart IN-Kosciusko IN-Miami IN-
150 PM EDT Wed Aug 11 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ELKHART...EASTERN
KOSCIUSKO AND CENTRAL MIAMI COUNTIES IS CANCELLED...

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

A Severe Thunderstorm Watch remains in effect until 500 PM EDT for
north central and northeastern Indiana.

LAT...LON 4073 8585 4096 8568 4120 8555 4151 8536
      4152 8515 4122 8505 4071 8555
TIME...MOT...LOC 1750Z 264DEG 44KT 4151 8531 4123 8521 4083 8563 

$$

INC003-033-069-113-169-183-111800-
/O.CON.KIWX.SV.W.0087.000000T0000Z-210811T1800Z/
Allen IN-Wabash IN-Noble IN-Whitley IN-De Kalb IN-Huntington IN-
150 PM EDT Wed Aug 11 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM EDT
FOR NORTHWESTERN ALLEN...SOUTHEASTERN WABASH...EASTERN NOBLE...
WHITLEY...WESTERN DE KALB AND HUNTINGTON COUNTIES...

At 150 PM EDT, severe thunderstorms were located along a line
extending from near Rome City to Huntertown to near Andrews, moving
east at 50 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Fort Wayne, Huntington, Kendallville, Columbia City, Garrett,
Tri-lakes, Huntertown, Avilla, Albion, Churubusco, Rome City,
Andrews, Aboite, Swan, Roanoke, Lagro, Corunna, Altona, Mount Etna
and Saint Johns.

This includes Interstate 69 in Indiana between mile markers 300 and
312, and between mile markers 315 and 326.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Northern Indiana.

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

&&

LAT...LON 4073 8585 4096 8568 4120 8555 4151 8536
      4152 8515 4122 8505 4071 8555
TIME...MOT...LOC 1750Z 264DEG 44KT 4151 8531 4123 8521 4083 8563 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

CM

The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 10, 8:49 PM EDTSpecial Marine WarningIWX86 min
Aug 10, 9:49 PM EDTSpecial Weather StatementIWXLaPorte41 min
Aug 10, 9:56 PM EDTSevere Thunderstorm WarningIWXLaPorte, Saint Joseph49 min
Aug 10, 10:18 PM EDTSevere Thunderstorm WarningIWXElkhart, LaPorte, Marshall, Saint Joseph, Starke57 min
Aug 10, 10:42 PM EDTSevere Thunderstorm WarningIWXElkhart, LaGrange, Noble, Saint Joseph48 min
Aug 10, 11:02 PM EDTSevere Thunderstorm WarningIWXFulton, Marshall, Pulaski, Starke43 min
Aug 10, 11:31 PM EDTSpecial Weather StatementIWXSteuben29 min
Aug 10, 11:41 PM EDTSevere Thunderstorm WarningIWXFulton, Kosciusko, Marshall, Miami, Pulaski34 min
Aug 11, 12:05 AM EDTSevere Thunderstorm WarningIWXFulton, Huntington, Kosciusko, Miami, Wabash, Whitley40 min
Aug 11, 12:29 AM EDTSpecial Weather StatementIWXHuntington31 min
Aug 11, 12:38 AM EDTSpecial Weather StatementIWXAllen22 min
Aug 11, 12:56 AM EDTSpecial Weather StatementIWXAdams, Allen, Wells49 min
Aug 11, 3:57 AM EDTSpecial Weather StatementIWXCass, White33 min
Aug 11, 4:46 AM EDTSpecial Weather StatementIWXCass, Fulton, Miami44 min
Aug 11, 4:59 AM EDTSpecial Weather StatementIWXKosciusko46 min
Aug 11, 5:21 AM EDTSpecial Weather StatementIWXLaPorte39 min
Aug 11, 5:49 AM EDTSpecial Weather StatementIWXNoble41 min
Aug 11, 5:52 AM EDTSpecial Weather StatementIWXLaPorte38 min
Aug 11, 5:54 AM EDTSpecial Weather StatementIWXWhitley51 min
Aug 11, 11:22 AM EDTSpecial Weather StatementIWXStarke38 min
Aug 11, 11:36 AM EDTSpecial Marine WarningIWX54 min
Aug 11, 12:00 PM EDTSpecial Weather StatementIWXKosciusko, LaPorte, Marshall, Saint Joseph, Starke30 min
Aug 11, 12:16 PM EDTSevere Thunderstorm WarningIWXKosciusko, Marshall29 min
Aug 11, 12:29 PM EDTSpecial Weather StatementIWXElkhart, Fulton, Kosciusko, LaPorte, Marshall, Pulaski and 2 more46 min
Aug 11, 12:34 PM EDTSpecial Marine WarningIWX56 min
Aug 11, 12:43 PM EDTAreal Flood AdvisoryIWXKosciusko, LaPorte, Marshall, Pulaski, Saint Joseph, Starke3 hr
Aug 11, 12:47 PM EDTSevere Thunderstorm WarningIWXElkhart, Fulton, Kosciusko, Marshall, Saint Joseph43 min
Aug 11, 12:54 PM EDTSevere Thunderstorm WarningIWXCass, Fulton, Kosciusko, Miami, Pulaski, Wabash36 min
Aug 11, 1:10 PM EDTSpecial Weather StatementIWXElkhart, LaGrange50 min
Aug 11, 1:29 PM EDTSpecial Marine WarningIWX46 min
Aug 11, 1:39 PM EDTSevere Thunderstorm WarningIWXLaGrange, Steuben36 min
Aug 11, 1:48 PM EDTSevere Thunderstorm WarningIWXAdams, Allen, DeKalb, Huntington, Jay, Wells27 min
Aug 11, 2:02 PM EDTSevere Thunderstorm WarningIWXDeKalb, Steuben43 min
Aug 11, 2:05 PM EDTSevere Thunderstorm WarningIWXBlackford, Grant, Huntington, Jay, Wells55 min
Aug 11, 2:14 PM EDTSevere Thunderstorm WarningIWXAdams, Allen, DeKalb, Huntington, Jay, Wells46 min
Aug 11, 3:01 PM EDTSevere Thunderstorm WarningIWXJay29 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.