Alert archive / Indiana / Special Weather Statements in 2021

Special Weather Statement, NWS Northern Indiana

August 6, 2021LaPorte County, Indiana

NWS Northern Indiana issued this special weather statement at Aug 6, 2021, 10:09 PM CDT for LaPorte County, Indiana. It was in force for 36 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
Aug 6, 2021, 10:09 PM CDT (03:09 UTC)
Expired
Aug 6, 2021, 10:45 PM CDT
In force
36 min
Issued by
NWS Northern Indiana
Hail
0.50 in
Wind
50

County LaPorte County, IN

The radar

The Northern Indiana radar (KIWX), 88 km from the middle of the area, began a volume at 03:09 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

Lincoln, IL (KILX), launched 00:00Z, 3.2 hours before the alert went out and 212 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, Lincoln, IL at 00:00Z on 2021-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1366 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, Lincoln, IL at 00:00Z on 2021-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 91 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
1366 J/kg
Mixed-layer CIN
-50 J/kg
Mixed-layer LCL
1195 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
91 m²/s²
0-3 km storm-relative helicity
152 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

255 
WWUS83 KIWX 070309
SPSIWX

Special Weather Statement
National Weather Service Northern Indiana
1009 PM CDT Fri Aug 6 2021
 
INZ003-070345-
La Porte IN-
1009 PM CDT Fri Aug 6 2021

...A strong thunderstorm will impact portions of southwestern La
Porte County through 1045 PM CDT...

At 1008 PM CDT, Doppler radar was tracking a strong thunderstorm over
Wanatah, or 7 miles southeast of Westville, moving east at 10 mph.

HAZARD...Wind gusts up to 50 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects. Minor damage to outdoor objects is 
         possible.

Locations impacted include...
  Kingsford Heights.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

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

&&

LAT...LON 4154 8693 4161 8663 4143 8663 4143 8664
      4141 8667 4140 8670 4138 8671 4135 8673
      4134 8693
TIME...MOT...LOC 0308Z 252DEG 9KT 4145 8684 

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH

$$

Brown

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 7:00 PM CDTSevere Thunderstorm WarningIWXElkhart, Kosciusko30 min
Aug 6, 7:30 PM CDTSevere Thunderstorm WarningIWXElkhart, Kosciusko, LaGrange, Noble45 min
Aug 6, 8:31 PM CDTSpecial Weather StatementIWXDeKalb44 min
Aug 6, 11:23 PM CDTAreal Flood AdvisoryIWXElkhart, Saint Joseph3 hr
Aug 6, 11:57 PM CDTSpecial Weather StatementIWXMarshall33 min
Aug 7, 12:21 AM CDTSpecial Weather StatementIWXKosciusko24 min
Aug 7, 1:18 AM CDTSpecial Weather StatementIWXNoble27 min
Aug 7, 2:13 AM CDTSpecial Weather StatementIWXHuntington, Wabash32 min
Aug 7, 2:44 AM CDTSpecial Weather StatementIWXPulaski31 min
Aug 7, 4:25 AM CDTSpecial Weather StatementIWXFulton35 min
Aug 7, 4:28 AM CDTSpecial Weather StatementIWXKosciusko32 min
Aug 7, 10:58 AM CDTSpecial Weather StatementIWXAllen32 min
Aug 7, 11:08 AM CDTSevere Thunderstorm WarningIWXAllen37 min
Aug 7, 4:01 PM CDTSpecial Weather StatementIWXHuntington29 min
Aug 7, 12:43 PM CDTSpecial Weather StatementIWXAllen47 min
Aug 6, 7:07 PM CDTSpecial Weather StatementIWXBranch53 min
Aug 6, 7:33 PM CDTSevere Thunderstorm WarningIWXBranch, Hillsdale39 min
Aug 6, 11:54 PM CDTAreal Flood AdvisoryIWXSaint Joseph3 hr

Nearby

Special Weather Statements in Indiana, 2021Every special weather statement 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.