Alert archive / Kentucky / Special Weather Statements in 2012

Special Weather Statement, NWS Louisville, KY

October 17, 20126 counties in Kentucky

NWS Louisville, KY issued this special weather statement at Oct 17, 2012, 11:52 PM CDT for 6 counties in Kentucky. It was in force for 43 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
Oct 17, 2012, 11:52 PM CDT (04:52 UTC)
Expired
Oct 18, 2012, 12:35 AM CDT
In force
43 min
Issued by
NWS Louisville, KY

Counties Allen County, KY, Barren County, KY, Edmonson County, KY, Hart County, KY, Simpson County, KY, Warren County, KY

The radar

The Nashville radar (KOHX), 78 km from the middle of the area, began a volume at 04:51 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

Nashville Metro, TN (KBNA), launched 00:00Z, 4.9 hours before the alert went out and 91 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-pSkew-T log-p diagram, Nashville Metro, TN at 00:00Z on 2012-10-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 00:00Z on 2012-10-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 169 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
1963 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
169 m²/s²
0-3 km storm-relative helicity
300 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

218 
WWUS83 KLMK 180452
SPSLMK

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
1152 PM CDT WED OCT 17 2012

KYZ027-028-053-062-063-071>074-180535-
ALLEN KY-BARREN KY-EDMONSON KY-GRAYSON KY-HARDIN KY-HART KY-LARUE
KY-SIMPSON KY-WARREN KY-
1152 PM CDT WED OCT 17 2012

...STRONG THUNDERSTORMS WITH DANGEROUS LIGHTNING...MODERATE RAIN...
AND 40 MPH WINDS...

AT 1150 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 9 MILES EAST OF
LEITCHFIELD TO 7 MILES NORTHEAST OF PORTLAND...AND MOVING EAST AT 30
MPH.

FREQUENT CLOUD TO GROUND LIGHTNING...MODERATE RAIN REDUCING
VISIBILITIES...AND GUSTY WINDS OF AROUND 35 TO 40 MPH...ARE EXPECTED
WITH THESE STORMS.

* THESE STORMS WILL ALSO IMPACT...
  FRANKLIN...
  THREE SPRINGS...
  SCOTTSVILLE...
  PLUM SPRINGS...
  MUNFORDVILLE...
  HILLTOP AND STOCKHOLM...
  FLINT HILL AND PIG...
  ROCKY HILL AND YESSE...
  GAINESVILLE AND WINESAP...

THESE STORMS WILL AFFECT INTERSTATE 65 IN KENTUCKY BETWEEN MILE
MARKERS 20 AND 81.

THESE STORMS WILL AFFECT THE NATCHER PARKWAY BETWEEN MILE MARKERS 1
AND 5.

THESE STORMS WILL AFFECT THE CUMBERLAND (NUNN) PARKWAY BETWEEN MILE
MARKERS 11 AND 1.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE AWARE THAT GUSTY WINDS PRECEDING THESE STORMS WILL OCCUR WELL 
BEFORE THE ARRIVAL OF ANY RAIN.

&&

LAT...LON 3665 8636 3665 8652 3663 8657 3665 8659
      3664 8665 3715 8642 3717 8640 3718 8641
      3756 8623 3754 8572 3662 8604
TIME...MOT...LOC 0452Z 270DEG 24KT 3748 8612 3668 8644

$$

AMS

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 17, 9:47 PM CDTSpecial Weather StatementLMKBreckinridge, Hancock, Ohio58 min
Oct 17, 9:51 PM CDTSpecial Weather StatementLMKButler, Logan, Simpson59 min
Oct 17, 10:48 PM CDTSpecial Weather StatementLMKAllen, Butler, Edmonson, Grayson, Logan, Ohio and 2 more62 min
Oct 17, 10:55 PM CDTSpecial Weather StatementLMKBreckinridge, Meade30 min
Oct 17, 11:48 PM CDTSpecial Weather StatementLMKBullitt, Hardin, Jefferson47 min
Oct 18, 12:37 AM CDTSpecial Weather StatementLMKAdair, Barren, Cumberland, Green, Metcalfe, Monroe and 1 more58 min
Oct 18, 1:38 PM CDTSpecial Weather StatementLMKBreckinridge, Bullitt, Butler, Edmonson, Grayson, Hancock and 9 more52 min
Oct 18, 3:19 PM CDTSpecial Weather StatementLMKHenry, Oldham, Shelby26 min

Nearby

Special Weather Statements in Kentucky, 2012Every 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.