Alert archive / Indiana / Special Weather Statements in 2020

Special Weather Statement, NWS Northern Indiana

September 8, 2020LaPorte County, Saint Joseph County, Starke County, Indiana

NWS Northern Indiana issued this special weather statement at Sep 8, 2020, 4:51 AM CDT for LaPorte County, Saint Joseph County, Starke County, Indiana. It was in force for 39 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: Sep 8, 2020, 4:51 AM CDT (09:51 UTC)
Expired: Sep 8, 2020, 5:30 AM CDT
In force: 39 min
Issued by: NWS Northern Indiana

Counties LaPorte County, IN, Saint Joseph County, IN, Starke County, IN

The radar

The Northern Indiana radar (KIWX), 80 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.

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 9.9 hours before the alert went out and 225 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: 1489 J/kg
Mixed-layer CIN: -49 J/kg
Mixed-layer LCL: 1001 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 146 m²/s²
0-3 km storm-relative helicity: 329 m²/s²
Significant tornado parameter: 1.4
Supercell composite: 10.5

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Northern Indiana wrote its last area forecast discussion before this special weather statement went out at Sep 8, 3:27 AM CDT, 1 hour 24 minutes earlier.

Area forecast discussion, Sep 8, 3:27 AM CDT, 1 hour 24 minutes before

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Hazardous weather outlook, Sep 8, 4:12 AM CDT, 39 minutes before

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In the hours before

Local storm report, Sep 7, 10:51 PM CDT, 6 hours before

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Local storm report, Sep 7, 11:00 PM CDT, 5 hours 51 minutes before

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Special weather statement, Sep 8, 4:51 AM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 7, 8:33 PM CDT	Severe Thunderstorm Warning	IWX	Blackford, Grant, Jay, Wells	27 min
Sep 7, 9:04 PM CDT	Special Weather Statement	IWX	Blackford, Jay	41 min
Sep 7, 9:51 PM CDT	Areal Flood Advisory	IWX	Adams, Blackford, Grant, Huntington, Jay, Wabash and 1 more	44 min
Sep 7, 10:35 PM CDT	Areal Flood Warning	IWX	Adams, Blackford, Grant, Huntington, Jay, Wabash and 1 more	3 hr
Sep 8, 2:29 AM CDT	Areal Flood Advisory	IWX	Adams, Allen, Wells	87 min
Sep 8, 5:39 AM CDT	Areal Flood Advisory	IWX	Elkhart, Saint Joseph	65 min
Sep 8, 3:37 PM CDT	Special Weather Statement	IWX	Huntington	38 min
Sep 8, 3:42 PM CDT	Severe Thunderstorm Warning	IWX	Allen, Huntington, Wells	48 min
Sep 8, 4:24 PM CDT	Severe Thunderstorm Warning	IWX	Adams, Allen, Wells	28 min
Sep 8, 4:54 PM CDT	Special Weather Statement	IWX	Adams	36 min
Sep 7, 8:42 PM CDT	Areal Flood Advisory	IWX	Allen, Van Wert	119 min
Sep 7, 10:41 PM CDT	Areal Flood Warning	IWX	Allen, Van Wert	5 hr
Sep 8, 4:23 PM CDT	Special Weather Statement	IWX	Fulton	37 min

Nearby

Special Weather Statements in Indiana, 2020 Every special weather statement in 2020

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.