Alert archive / Indiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 6, NWS Northern Indiana

June 18, 2021Jay County, Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Jun 18, 2021, 4:48 PM EDT for Jay County, Indiana. It was in force for 18 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
Jun 18, 2021, 4:48 PM EDT (20:48 UTC)
Expired
Jun 18, 2021, 5:06 PM EDT
In force
18 min
Issued by
NWS Northern Indiana
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Jay County, IN

The radar

The Northern Indiana radar (KIWX), 125 km from the middle of the area, began a volume at 20:47 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 12:00Z, 8.8 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-pSkew-T log-p diagram, Cncnati-Daytn, OH at 12:00Z on 2021-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Cncnati-Daytn, OH at 12:00Z on 2021-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 110 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1560 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
110 m²/s²
0-3 km storm-relative helicity
97 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

758 
WUUS53 KIWX 182048
SVRIWX
INC075-182130-
/O.NEW.KIWX.SV.W.0006.210618T2048Z-210618T2130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Northern Indiana
448 PM EDT Fri Jun 18 2021

The National Weather Service in Northern Indiana has issued a

* Severe Thunderstorm Warning for...
  Southern Jay County in east central Indiana...

* Until 530 PM EDT.

* At 448 PM EDT, a severe thunderstorm was located near Redkey, or 7
  miles southeast of Dunkirk, moving east at 45 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...
  Redkey, Salamonia, Boundary City, Collett, Bluff Point, Powers, New
  Mount Pleasant and Como.

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 4039 8517 4039 8480 4031 8480 4031 8518
TIME...MOT...LOC 2048Z 273DEG 37KT 4033 8509 

HAIL...1.00IN
WIND...60MPH
 
$$

MARSILI
1 follow-up statement
813 
WWUS53 KIWX 182106
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
506 PM EDT Fri Jun 18 2021

INC075-182116-
/O.CAN.KIWX.SV.W.0006.000000T0000Z-210618T2130Z/
Jay IN-
506 PM EDT Fri Jun 18 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN JAY 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 4039 8517 4039 8480 4031 8480 4031 8518
TIME...MOT...LOC 2105Z 273DEG 37KT 4032 8485 

$$

MARSILI

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 18, 5:53 AM EDTSpecial Marine WarningIWX82 min
Jun 18, 6:39 AM EDTSpecial Weather StatementIWXLaPorte, Saint Joseph66 min
Jun 18, 7:15 AM EDTSpecial Weather StatementIWXElkhart, LaGrange45 min
Jun 18, 7:56 AM EDTSpecial Weather StatementIWXDeKalb, Steuben64 min
Jun 18, 8:22 AM EDTSpecial Weather StatementIWXAdams, Allen, Wells53 min
Jun 18, 2:21 PM EDTSpecial Weather StatementIWXMiami24 min
Jun 18, 2:45 PM EDTSpecial Weather StatementIWXGrant, Miami45 min
Jun 18, 2:52 PM EDTSevere Thunderstorm WarningIWXGrant, Huntington, Miami, Wabash38 min
Jun 18, 3:28 PM EDTSevere Thunderstorm WarningIWXBlackford, Grant, Huntington, Wabash, Wells47 min
Jun 18, 3:34 PM EDTSevere Thunderstorm WarningIWXAdams, Jay, Wells41 min
Jun 18, 3:54 PM EDTTornado WarningIWXJay19 min
Jun 18, 3:58 PM EDTSevere Thunderstorm WarningIWXBlackford, Jay47 min
Jun 18, 4:16 PM EDTSevere Thunderstorm WarningIWXJay13 min
Jun 18, 6:48 PM EDTSpecial Weather StatementIWXJay27 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.