Alert archive / Kentucky / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 45, NWS Louisville, KY

February 23, 20124 counties in Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Feb 23, 2012, 8:09 PM EST for 4 counties in Kentucky. It was in force for 36 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Feb 23, 2012, 8:09 PM EST (01:09 UTC)
Expired
Feb 23, 2012, 8:45 PM EST
In force
36 min
Issued by
NWS Louisville, KY
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

Counties Bullitt County, KY, Nelson County, KY, Shelby County, KY, Spencer County, KY

The radar

The Louisville radar (KLVX), 61 km from the middle of the area, began a volume at 01:12 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.

What was reported inside it

TimeReportWhereRemark
Feb 23, 8:17 PM ESTHAIL 0.74 N Coxs Creek, KYHAIL COVERING THE GROUND

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 1.2 hours before the alert went out and 203 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, Cncnati-Daytn, OH at 00:00Z on 2012-02-24Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 00:00Z on 2012-02-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 556 square meters per square second.1939587897117136156Sfc1 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
1094 m above ground
0-6 km bulk shear
86 kt
0-1 km storm-relative helicity
556 m²/s²
0-3 km storm-relative helicity
1028 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.

695 
WUUS53 KLMK 240109
SVRLMK
KYC029-179-211-215-240145-
/O.NEW.KLMK.SV.W.0045.120224T0109Z-120224T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
809 PM EST THU FEB 23 2012

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN BULLITT COUNTY IN NORTH CENTRAL KENTUCKY...
  NORTHERN NELSON COUNTY IN NORTH CENTRAL KENTUCKY...
  SOUTHERN SHELBY COUNTY IN NORTH CENTRAL KENTUCKY...
  SPENCER COUNTY IN NORTH CENTRAL KENTUCKY...

* UNTIL 845 PM EST

* AT 807 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
  STORM WAS LOCATED NEAR BROWNINGTON...MOVING EAST AT 50 MPH.

* THE SEVERE THUNDERSTORM WILL ALSO IMPACT...
  TAYLORSVILLE...
  HIGHGROVE AND SMITHVILLE...
  FAIRFIELD AND WATERFORD...
  WAKEFIELD AND YODER...
  LITTLE MOUNT AND RIVALS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE...CALL TOLL
FREE AT...1...8 7 7...6 3 3...6 7 7 2...WHEN YOU CAN DO SO SAFELY.

&&

LAT...LON 3800 8513 3800 8514 3799 8515 3800 8516
      3799 8517 3797 8517 3786 8559 3800 8565
      3817 8523
TIME...MOT...LOC 0109Z 250DEG 43KT 3794 8554
WIND...HAIL <50MPH 1.00IN

$$

JSD
2 follow-up statements
652 
WWUS53 KLMK 240121
SVSLMK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
821 PM EST THU FEB 23 2012

KYC029-240130-
/O.CAN.KLMK.SV.W.0045.000000T0000Z-120224T0145Z/
BULLITT KY-
821 PM EST THU FEB 23 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BULLITT COUNTY IS
CANCELLED...

TO REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE...CALL TOLL
FREE AT...1...8 7 7...6 3 3...6 7 7 2...WHEN YOU CAN DO SO SAFELY.

LAT...LON 3817 8523 3800 8513 3799 8515 3800 8516
      3799 8517 3797 8517 3790 8546 3798 8550
      3800 8549
TIME...MOT...LOC 0120Z 250DEG 43KT 3798 8538

$$

KYC179-211-215-240145-
/O.CON.KLMK.SV.W.0045.000000T0000Z-120224T0145Z/
NELSON KY-SHELBY KY-SPENCER KY-
821 PM EST THU FEB 23 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM EST
FOR SPENCER...SOUTHERN SHELBY AND NORTHEASTERN NELSON COUNTIES...

AT 817 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE 
HAIL. A LOT OF DIME SIZE HAIL WAS REPORTED NEAR LENORE IN NORTHERN 
NELSON COUNTY. THIS STORM WAS LOCATED NEAR FAIRFIELD...MOVING EAST 
AT 50 MPH.

* THE SEVERE THUNDERSTORM WILL ALSO IMPACT...
  TAYLORSVILLE...
  WAKEFIELD AND YODER...
  LITTLE MOUNT AND RIVALS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE...CALL TOLL
FREE AT...1...8 7 7...6 3 3...6 7 7 2...WHEN YOU CAN DO SO SAFELY.

&&

LAT...LON 3817 8523 3800 8513 3799 8515 3800 8516
      3799 8517 3797 8517 3790 8546 3798 8550
      3800 8549
TIME...MOT...LOC 0120Z 250DEG 43KT 3798 8538
WIND...HAIL <50MPH 1.00IN

$$

AMS
774 
WWUS53 KLMK 240137
SVSLMK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
837 PM EST THU FEB 23 2012

KYC179-211-215-240147-
/O.EXP.KLMK.SV.W.0045.000000T0000Z-120224T0145Z/
NELSON KY-SHELBY KY-SPENCER KY-
837 PM EST THU FEB 23 2012

...THE SEVERE THUNDERSTORM WARNING FOR SPENCER...SOUTHERN SHELBY AND
NORTHEASTERN NELSON COUNTIES WILL EXPIRE AT 845 PM EST...

THE STORMS THAT PROMPTED THE WARNING HAVE MOVED OUT OF THE WARNED
AREA.

TO REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE...CALL TOLL
FREE AT...1...8 7 7...6 3 3...6 7 7 2...WHEN YOU CAN DO SO SAFELY.

LAT...LON 3817 8523 3800 8513 3799 8515 3800 8516
      3799 8517 3797 8517 3790 8546 3798 8550
      3800 8549
TIME...MOT...LOC 0137Z 250DEG 43KT 3805 8514

$$

JSD

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 23, 7:05 PM ESTSpecial Weather StatementLMKFranklin, Shelby25 min
Feb 23, 7:32 PM ESTSpecial Weather StatementLMKFranklin, Scott, Woodford43 min
Feb 23, 8:02 PM ESTSpecial Weather StatementLMKBullitt, Spencer28 min
Feb 23, 8:35 PM ESTSpecial Weather StatementLMKAnderson25 min
Feb 23, 8:40 PM ESTSpecial Weather StatementLMKFranklin35 min
Feb 23, 9:03 PM ESTSpecial Weather StatementLMKHarrison27 min
Feb 23, 9:21 PM ESTSpecial Weather StatementLMKBourbon24 min
Feb 23, 9:47 PM ESTSpecial Weather StatementLMKNicholas13 min
Feb 23, 10:28 PM ESTSpecial Weather StatementLMKBullitt, Hardin32 min
Feb 23, 10:31 PM ESTSpecial Weather StatementLMKButler29 min
Feb 23, 10:36 PM ESTSpecial Weather StatementLMKGrayson9 min
Feb 23, 10:45 PM ESTSevere Thunderstorm WarningLMKButler, Edmonson, Grayson, Hart, Warren30 min
Feb 23, 11:01 PM ESTSpecial Weather StatementLMKHardin29 min
Feb 23, 11:34 PM ESTSpecial Weather StatementLMKGrayson, Hardin26 min
Feb 23, 11:36 PM ESTSpecial Weather StatementLMKLarue, Marion24 min
Feb 23, 11:38 PM ESTSpecial Weather StatementLMKFranklin, Scott22 min
Feb 23, 11:56 PM ESTSpecial Weather StatementLMKBourbon, Nicholas34 min
Feb 24, 12:01 AM ESTSpecial Weather StatementLMKFayette, Jessamine, Mercer, Washington, Woodford44 min
Feb 24, 3:41 AM ESTWind AdvisoryLMKAdair, Allen, Anderson, Barren, Bourbon, Boyle and 43 more15 hr

Nearby

Severe Thunderstorm Warnings in Kentucky, 2012Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.