Alert archive / Kentucky / Special Weather Statements in 2015

Special Weather Statement, NWS Louisville, KY

August 6, 2015Jefferson County, Kentucky

NWS Louisville, KY issued this special weather statement at Aug 6, 2015, 3:11 PM EDT for Jefferson County, Kentucky. It was in force for 34 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 6, 2015, 3:11 PM EDT (19:11 UTC)
Expired: Aug 6, 2015, 3:45 PM EDT
In force: 34 min
Issued by: NWS Louisville, KY

County Jefferson County, KY

The radar

The Louisville radar (KLVX), 44 km from the middle of the area, began a volume at 19:15 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 12:00Z, 7.2 hours before the alert went out and 251 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: 61 J/kg
Mixed-layer CIN: -166 J/kg
Mixed-layer LCL: 1037 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 158 m²/s²
0-3 km storm-relative helicity: 202 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 6, 1:33 PM EDT, 1 hour 38 minutes earlier.

Area forecast discussion, Aug 6, 1:33 PM EDT, 1 hour 38 minutes before

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Hazardous weather outlook, Aug 6, 12:22 PM EDT, 2 hours 49 minutes before

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In the hours before

Special weather statement, Aug 6, 3:11 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
311 PM EDT THU AUG 6 2015

KYZ029>031-034-038-061945-
BULLITT-OLDHAM-SPENCER-JEFFERSON-SHELBY-
311 PM EDT THU AUG 6 2015

...TORRENTIAL RAINFALL TO REDUCE VISIBILITY ACROSS LOUISVILLE
METRO...

AT 309 PM EDT...A LINE OF HEAVY SHOWERS EXTENDED FROM SHIVELY TO 8
MILES WEST OF TAYLORSVILLE...AND MOVING NORTHEAST AT 15 MPH.

VISIBILITY DOWN TO 1/2 MILE OR LESS AT TIMES IN TORRENTIAL RAINFALL
IS EXPECTED WITH THIS LINE OF SHOWERS.

LOCATIONS IMPACTED INCLUDE...
LOUISVILLE...JEFFERSONTOWN...ST. MATTHEWS...SHIVELY...LYNDON...
MIDDLETOWN...DOUGLASS HILLS...PROSPECT...HURSTBOURNE...
GRAYMOOR-DEVONDALE...WINDY HILLS...ANCHORAGE...PIONEER VILLAGE...
HURSTBOURNE ACRES...AUDUBON PARK...ST. REGIS PARK...WORTHINGTON
HILLS...BEECHWOOD VILLAGE...WEST BUECHEL AND BARBOURMEADE.

TORRENTIAL RAINFALL IS OCCURRING...AND MAY CAUSE LOCALIZED FLOODING.
DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

LAT...LON 3820 8525 3798 8550 3816 8586 3829 8570
      3830 8567 3833 8565 3838 8559
TIME...MOT...LOC 1909Z 228DEG 12KT 3819 8581 3804 8550

ZT

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 6, 7:17 AM EDT	Special Weather Statement	LMK	Hardin, Hart	43 min
Aug 6, 3:18 PM EDT	Special Weather Statement	LMK	Barren, Breckinridge, Edmonson, Grayson, Hardin, Hart and 1 more	72 min
Aug 6, 4:34 PM EDT	Special Weather Statement	LMK	Bullitt, Green, Hardin, Hart, Larue, Meade and 1 more	56 min
Aug 6, 5:23 PM EDT	Special Weather Statement	LMK	Franklin, Scott	52 min
Aug 6, 7:11 PM EDT	Special Weather Statement	LMK	Bourbon, Fayette, Woodford	34 min

Nearby

Special Weather Statements in Kentucky, 2015 Every special weather statement in 2015

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.