Alert archive / Kentucky / Special Weather Statements in 2012

Special Weather Statement, NWS Louisville, KY

April 29, 201210 counties in Kentucky

NWS Louisville, KY issued this special weather statement at Apr 29, 2012, 1:08 AM EDT for 10 counties in Kentucky. It was in force for 52 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: Apr 29, 2012, 1:08 AM EDT (05:08 UTC)
Expired: Apr 29, 2012, 2:00 AM EDT
In force: 52 min
Issued by: NWS Louisville, KY

Counties Anderson County, KY, Bourbon County, KY, Clark County, KY, Fayette County, KY, Franklin County, KY, Harrison County, KY, Nicholas County, KY, Scott County, KY, Spencer County, KY, Woodford County, KY

The radar

The Jackson,KY radar (KJKL), 110 km from the middle of the area, began a volume at 05:10 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

Cncnati-Daytn, OH (KILN), launched 00:00Z, 5.1 hours before the alert went out and 161 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 952 m above ground
0-6 km bulk shear: 66 kt
0-1 km storm-relative helicity: 229 m²/s²
0-3 km storm-relative helicity: 286 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

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 Apr 28, 10:47 PM EDT, 2 hours 21 minutes earlier.

Area forecast discussion, Apr 28, 10:47 PM EDT, 2 hours 21 minutes before

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Hazardous weather outlook, Apr 28, 11:01 PM EDT, 2 hours 7 minutes before

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In the hours before

Local storm report, Apr 28, 9:20 PM EDT, 3 hours 48 minutes before

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Local storm report, Apr 28, 9:48 PM EDT, 3 hours 20 minutes before

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Local storm report, Apr 28, 9:54 PM EDT, 3 hours 14 minutes before

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Special weather statement, Apr 28, 11:38 PM EDT, 1 hour 30 minutes before

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Special weather statement, Apr 29, 12:14 AM EDT, 54 minutes before

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Special weather statement, Apr 29, 1:08 AM EDT, 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
Apr 28, 8:10 PM EDT	Severe Thunderstorm Warning	LMK	Bullitt, Jefferson, Shelby, Spencer	35 min
Apr 28, 8:30 PM EDT	Special Weather Statement	LMK	Henry, Trimble	30 min
Apr 28, 8:33 PM EDT	Severe Thunderstorm Warning	LMK	Anderson, Nelson, Shelby, Spencer	27 min
Apr 28, 8:59 PM EDT	Special Weather Statement	LMK	Anderson, Woodford	31 min
Apr 28, 9:06 PM EDT	Special Weather Statement	LMK	Henry	24 min
Apr 28, 9:10 PM EDT	Special Weather Statement	LMK	Harrison	35 min
Apr 29, 12:14 AM EDT	Special Weather Statement	LMK	Henry, Jefferson, Oldham, Shelby	46 min
Apr 29, 12:34 AM EDT	Areal Flood Advisory	LMK	Henry, Jefferson, Oldham, Shelby, Spencer	90 min
Apr 28, 11:38 PM EDT	Special Weather Statement	LMK	Clark, Scott, Washington	37 min

Nearby

Special Weather Statements in Kentucky, 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.