Alert archive / Indiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 66, NWS Northern Indiana

July 29, 20215 counties in Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Jul 29, 2021, 5:25 AM EDT for 5 counties in Indiana. It was in force for 50 min. 5 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
Jul 29, 2021, 5:25 AM EDT (09:25 UTC)
Expired
Jul 29, 2021, 6:15 AM EDT
In force
50 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, Kosciusko County, IN, Noble County, IN, Whitley County, IN

The radar

The Northern Indiana radar (KIWX), 15 km from the middle of the area, began a volume at 09:26 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
Jul 29, 5:27 AM EDTTSTM WND DMGBig Barbee Lake, INNUMEROUS TREES DOWN AROUND BIG BARBEE LAKE.
Jul 29, 5:33 AM EDTTSTM WND DMG1 Sse Ridinger Lake, INLARGE TREE DOWN BLOCKING ROAD.
Jul 29, 5:55 AM EDTTSTM WND DMGGarrett, INDOWNED TREES VIA SOCIAL MEDIA. TIME ESTIMATED FROM RADAR.
Jul 29, 5:58 AM EDTTSTM WND DMGAuburn, INTREE DOWN.
Jul 29, 5:58 AM EDTTSTM WND DMGAuburn, INREPORT FROM MPING: 3-INCH TREE LIMBS BROKEN; POWER POLES BROKEN.

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
Jul 29, 2:00 AM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 9.4 hours before the alert went out and 228 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, Detroit, MI at 00:00Z on 2021-07-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 219 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Detroit, MI at 00:00Z on 2021-07-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 square meters per square second.1939587897Sfc1 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
219 J/kg
Mixed-layer CIN
-51 J/kg
Mixed-layer LCL
1416 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
103 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

653 
WUUS53 KIWX 290925
SVRIWX
INC003-033-085-113-183-291015-
/O.NEW.KIWX.SV.W.0066.210729T0925Z-210729T1015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Northern Indiana
525 AM EDT Thu Jul 29 2021

The National Weather Service in Northern Indiana has issued a

* Severe Thunderstorm Warning for...
  Northern Allen County in northeastern Indiana...
  Noble County in northeastern Indiana...
  Northern Whitley County in northeastern Indiana...
  De Kalb County in northeastern Indiana...
  Northeastern Kosciusko County in north central Indiana...

* Until 615 AM EDT.

* At 525 AM EDT, severe thunderstorms were located along a line
  extending from near Ligonier to near Syracuse to near North
  Webster, moving east at 55 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Fort Wayne, Warsaw, Auburn, Kendallville, Garrett, Winona Lake,
  Ligonier, Butler, Tri-lakes, Huntertown, Avilla, Albion, Waterloo,
  Churubusco, Hamilton, Woodburn, Rome City, North Webster, Grabill
  and St. Joe.

This includes the following highways...
 Interstate 469 between mile markers 25 and 30.
 Interstate 69 in Indiana between mile markers 314 and 340.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4123 8584 4136 8572 4144 8568 4144 8565
      4150 8566 4152 8564 4153 8481 4111 8480
TIME...MOT...LOC 0925Z 270DEG 49KT 4149 8561 4137 8566 4130 8573 

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

PBM
1 follow-up statement
424 
WWUS53 KIWX 290949
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
549 AM EDT Thu Jul 29 2021

INC085-290958-
/O.CAN.KIWX.SV.W.0066.000000T0000Z-210729T1015Z/
Kosciusko IN-
549 AM EDT Thu Jul 29 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN KOSCIUSKO COUNTY
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 900 AM EDT for
northeastern Indiana.

LAT...LON 4121 8565 4125 8565 4130 8555 4139 8543
      4145 8538 4152 8535 4153 8481 4111 8480
TIME...MOT...LOC 0948Z 268DEG 49KT 4149 8522 4137 8527 4124 8542 

$$

INC003-033-113-183-291015-
/O.CON.KIWX.SV.W.0066.000000T0000Z-210729T1015Z/
Allen IN-Noble IN-Whitley IN-De Kalb IN-
549 AM EDT Thu Jul 29 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 AM EDT
FOR NORTHERN ALLEN...EASTERN NOBLE...NORTHERN WHITLEY AND DE KALB
COUNTIES...

At 548 AM EDT, severe thunderstorms were located along a line
extending from near Kendallville to Avilla to near Tri-lakes, moving
east at 55 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Fort Wayne, Auburn, Kendallville, Garrett, Butler, Tri-lakes,
Huntertown, Avilla, Albion, Waterloo, Churubusco, Hamilton, Woodburn,
Rome City, Grabill, St. Joe, Leo-cedarville, Swan, Etna and Concord.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4121 8565 4125 8565 4130 8555 4139 8543
      4145 8538 4152 8535 4153 8481 4111 8480
TIME...MOT...LOC 0948Z 268DEG 49KT 4149 8522 4137 8527 4124 8542 

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

PBM

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 29, 3:10 AM EDTSpecial Marine WarningIWX2 hr
Jul 29, 4:17 AM EDTSpecial Weather StatementIWXElkhart28 min
Jul 29, 4:23 AM EDTSevere Thunderstorm WarningIWXElkhart, Kosciusko, LaPorte, Marshall, Saint Joseph52 min
Jul 29, 4:59 AM EDTSevere Thunderstorm WarningIWXElkhart, Kosciusko, Marshall, Noble, Saint Joseph46 min
Jul 29, 5:16 AM EDTSpecial Weather StatementIWXFulton, Pulaski, Starke44 min
Jul 29, 5:21 AM EDTSpecial Weather StatementIWXLaGrange, Steuben39 min
Jul 29, 5:33 AM EDTSpecial Weather StatementIWXAllen, Cass, Miami, Wabash, Whitley42 min
Jul 29, 5:54 AM EDTSpecial Weather StatementIWXSteuben36 min
Jul 29, 6:07 AM EDTSevere Thunderstorm WarningIWXAllen, DeKalb38 min
Jul 29, 6:17 AM EDTSpecial Weather StatementIWXAdams, Blackford, Grant, Jay, Wells43 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.