Alert archive / Indiana / Special Weather Statements in 2012

Special Weather Statement, NWS Indianapolis, IN

July 8, 2012Knox County, Indiana

NWS Indianapolis, IN issued this special weather statement at Jul 8, 2012, 5:44 PM EDT for Knox County, Indiana. It was in force for 46 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: Jul 8, 2012, 5:44 PM EDT (21:44 UTC)
Expired: Jul 8, 2012, 6:30 PM EDT
In force: 46 min
Issued by: NWS Indianapolis, IN

County Knox County, IN

The radar

The Evansville,IN radar (KVWX), 33 km from the middle of the area, began a volume at 21:45 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 12:00Z, 9.7 hours before the alert went out and 202 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: 588 J/kg
Mixed-layer CIN: -359 J/kg
Mixed-layer LCL: 1252 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 67 m²/s²
0-3 km storm-relative helicity: 65 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 Indianapolis, IN wrote its last area forecast discussion before this special weather statement went out at Jul 8, 4:20 PM EDT, 1 hour 24 minutes earlier.

Area forecast discussion, Jul 8, 4:20 PM EDT, 1 hour 24 minutes before

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Hazardous weather outlook, Jul 8, 3:11 PM EDT, 2 hours 33 minutes before

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In the hours before

Local storm report, Jul 8, 3:16 PM EDT, 2 hours 28 minutes before

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Local storm report, Jul 8, 3:20 PM EDT, 2 hours 24 minutes before

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Local storm report, Jul 8, 3:36 PM EDT, 2 hours 8 minutes before

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Local storm report, Jul 8, 3:47 PM EDT, 1 hour 57 minutes before

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Local storm report, Jul 8, 3:49 PM EDT, 1 hour 55 minutes before

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Special weather statement, Jul 8, 5:44 PM EDT, 0 minutes before

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The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 7, 8:40 PM EDT	Special Weather Statement	IND	Johnson	50 min
Jul 7, 10:29 PM EDT	Special Weather Statement	IND	Lawrence	46 min
Jul 7, 10:31 PM EDT	Special Weather Statement	IND	Jackson	44 min
Jul 8, 1:25 PM EDT	Severe Thunderstorm Warning	IND	Lawrence, Monroe	50 min
Jul 8, 1:43 PM EDT	Severe Thunderstorm Warning	IND	Lawrence	32 min
Jul 8, 2:15 PM EDT	Severe Thunderstorm Warning	IND	Brown, Jackson, Lawrence	45 min
Jul 8, 2:39 PM EDT	Severe Thunderstorm Warning	IND	Jackson	51 min
Jul 8, 2:49 PM EDT	Severe Thunderstorm Warning	IND	Daviess, Greene, Knox	41 min
Jul 8, 3:03 PM EDT	Severe Thunderstorm Warning	IND	Jackson	27 min
Jul 8, 3:10 PM EDT	Severe Thunderstorm Warning	IND	Sullivan	50 min
Jul 8, 3:17 PM EDT	Areal Flood Advisory	IND	Lawrence, Martin	3 hr
Jul 8, 3:24 PM EDT	Severe Thunderstorm Warning	IND	Greene, Owen	51 min
Jul 8, 3:29 PM EDT	Severe Thunderstorm Warning	IND	Greene	46 min
Jul 8, 3:35 PM EDT	Severe Thunderstorm Warning	IND	Monroe	40 min
Jul 8, 3:37 PM EDT	Areal Flood Advisory	IND	Greene	3 hr
Jul 8, 3:41 PM EDT	Areal Flood Advisory	IND	Jackson	3 hr
Jul 8, 4:03 PM EDT	Severe Thunderstorm Warning	IND	Clay	10 min
Jul 8, 4:22 PM EDT	Areal Flood Advisory	IND	Greene, Lawrence, Monroe	3 hr

Nearby

Special Weather Statements in Indiana, 2012 Every special weather statement in 2012

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.