Alert archive / Kentucky / Special Weather Statements in 2011

Special Weather Statement, NWS Louisville, KY

August 14, 20114 counties in Kentucky

NWS Louisville, KY issued this special weather statement at Aug 14, 2011, 4:13 AM CDT for 4 counties in Kentucky. It was in force for 62 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 14, 2011, 4:13 AM CDT (09:13 UTC)
Expired: Aug 14, 2011, 5:15 AM CDT
In force: 62 min
Issued by: NWS Louisville, KY

Counties Allen County, KY, Monroe County, KY, Simpson County, KY, Warren County, KY

The radar

The Nashville radar (KOHX), 70 km from the middle of the area, began a volume at 09:15 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

Nashville Metro, TN (KBNA), launched 00:00Z, 9.2 hours before the alert went out and 83 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: 677 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 1515 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 75 m²/s²
0-3 km storm-relative helicity: 56 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.8

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 Louisville, KY wrote its last area forecast discussion before this special weather statement went out at Aug 14, 3:18 AM CDT, 55 minutes earlier.

Area forecast discussion, Aug 14, 3:18 AM CDT, 55 minutes before

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Hazardous weather outlook, Aug 14, 3:21 AM CDT, 52 minutes before

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In the hours before

Special weather statement, Aug 14, 12:02 AM CDT, 4 hours 11 minutes before

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Local storm report, Aug 14, 12:11 AM CDT, 4 hours 2 minutes before

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Special weather statement, Aug 14, 12:18 AM CDT, 3 hours 55 minutes before

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Special weather statement, Aug 14, 12:36 AM CDT, 3 hours 37 minutes before

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Special weather statement, Aug 14, 1:26 AM CDT, 2 hours 47 minutes before

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Special weather statement, Aug 14, 4:13 AM CDT, 0 minutes before

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The office that day

Everything else NWS Louisville, KY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 13, 7:01 PM CDT	Special Weather Statement	LMK	Madison	29 min
Aug 13, 7:40 PM CDT	Special Weather Statement	LMK	Russell	35 min
Aug 13, 11:57 PM CDT	Severe Thunderstorm Warning	LMK	Trimble	33 min
Aug 14, 12:18 AM CDT	Special Weather Statement	LMK	Trimble	42 min
Aug 14, 12:36 AM CDT	Special Weather Statement	LMK	Breckinridge, Meade	54 min
Aug 14, 1:26 AM CDT	Special Weather Statement	LMK	Breckinridge, Hardin, Meade	64 min
Aug 13, 10:54 PM CDT	Special Weather Statement	LMK	Dubois, Orange	51 min
Aug 13, 11:28 PM CDT	Special Weather Statement	LMK	Jefferson, Scott	47 min
Aug 13, 11:55 PM CDT	Severe Thunderstorm Warning	LMK	Crawford, Dubois, Orange	35 min
Aug 14, 12:02 AM CDT	Special Weather Statement	LMK	Perry	43 min

Nearby

Special Weather Statements in Kentucky, 2011 Every special weather statement in 2011

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.