Alert archive / Indiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 96, NWS Northern Indiana

August 12, 2021Fulton County, Pulaski County, Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Aug 12, 2021, 5:49 AM EDT for Fulton County, Pulaski County, Indiana. It was in force for 41 min. 3 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 12, 2021, 5:49 AM EDT (09:49 UTC)
Expired: Aug 12, 2021, 6:30 AM EDT
In force: 41 min
Issued by: NWS Northern Indiana
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Fulton County, IN, Pulaski County, IN

The radar

The Northern Indiana radar (KIWX), 93 km from the middle of the area, began a volume at 09:51 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 12, 6:07 AM EDT	TSTM WND DMG	Winamac, IN	CORRECTS PREVIOUS TSTM WND DMG REPORT FROM WINAMAC. TREES DOWN ON 12TH AND MARKET STREET IN WINAMAC.
Aug 12, 6:07 AM EDT	TSTM WND DMG	Winamac, IN	REPORT FROM MPING: 3-INCH TREE LIMBS BROKEN; POWER POLES BROKEN. TIME ESTIMATED FROM RADAR.
Aug 12, 6:11 AM EDT	TSTM WND DMG	Winamac, IN	TREES DOWN ON 12TH AND MARKET STREET IN WINAMAC.

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

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 9.8 hours before the alert went out and 186 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: 3800 J/kg
Mixed-layer CIN: -58 J/kg
Mixed-layer LCL: 1058 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 255 m²/s²
0-3 km storm-relative helicity: 406 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 20.7

Open this sounding in Storm Lab

The text

As transmitted.

611 
WUUS53 KIWX 120949
SVRIWX
INC049-131-121030-
/O.NEW.KIWX.SV.W.0096.210812T0949Z-210812T1030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Northern Indiana
549 AM EDT Thu Aug 12 2021

The National Weather Service in Northern Indiana has issued a

* Severe Thunderstorm Warning for...
  Pulaski County in northwestern Indiana...
  Western Fulton County in north central Indiana...

* Until 630 AM EDT.

* At 549 AM EDT, a severe thunderstorm was located over Moody, moving
  east at 45 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* This severe thunderstorm will be near...
  Francesville and Medaryville around 555 AM EDT.

Other locations in the path of this severe thunderstorm include
Winamac.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with this storm. 
Move indoors immediately. Lightning is one of nature's leading 
killers. Remember, if you can hear thunder, you are close enough to 
be struck by lightning.

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

&&

LAT...LON 4110 8693 4116 8639 4092 8637 4091 8674
      4091 8693
TIME...MOT...LOC 0949Z 264DEG 41KT 4099 8699 

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

$$

JBALL

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 12, 3:17 AM EDT	Heat Advisory	IWX	Adams, Allen, Blackford, Cass, DeKalb, Elkhart and 15 more	17 hr
Aug 12, 4:04 AM EDT	Special Weather Statement	IWX	LaPorte, Starke	26 min
Aug 12, 4:15 AM EDT	Special Marine Warning	IWX		30 min
Aug 12, 4:28 AM EDT	Special Weather Statement	IWX	LaPorte, Marshall, Starke	32 min
Aug 12, 5:15 AM EDT	Special Weather Statement	IWX	Elkhart, LaGrange	45 min
Aug 12, 6:12 AM EDT	Severe Thunderstorm Warning	IWX	Steuben	33 min
Aug 12, 6:16 AM EDT	Special Weather Statement	IWX	Fulton, Marshall	44 min
Aug 12, 6:21 AM EDT	Severe Thunderstorm Warning Considerable damage threat	IWX	Fulton, Kosciusko, Marshall	39 min
Aug 12, 6:40 AM EDT	Special Weather Statement	IWX	Whitley	35 min
Aug 12, 7:02 AM EDT	Severe Thunderstorm Warning	IWX	Elkhart, Kosciusko, Noble	43 min
Aug 12, 7:15 AM EDT	Special Weather Statement	IWX	Allen, DeKalb	30 min
Aug 12, 7:31 AM EDT	Special Weather Statement	IWX	Noble	44 min
Aug 12, 7:44 AM EDT	Special Weather Statement	IWX	DeKalb	46 min
Aug 12, 7:52 AM EDT	Special Weather Statement	IWX	LaGrange	38 min
Aug 12, 8:15 AM EDT	Special Weather Statement	IWX	Steuben	30 min

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.