Alert archive / Kentucky / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 404, NWS Louisville, KY

July 19, 2012Nelson County, Spencer County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Jul 19, 2012, 7:48 PM EDT for Nelson County, Spencer County, Kentucky. It was in force for 22 min. 3 reports 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: Jul 19, 2012, 7:48 PM EDT (23:48 UTC)
Expired: Jul 19, 2012, 8:10 PM EDT
In force: 22 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Hail: 0.5 in
Wind: 60.0 mph

Counties Nelson County, KY, Spencer County, KY

The radar

The Louisville radar (KLVX), 59 km from the middle of the area, began a volume at 23:52 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

Time	Report	Where	Remark
Jul 19, 7:52 PM EDT	TSTM WND DMG	Chaplin, KY	TREES DOWN
Jul 19, 7:58 PM EDT	TSTM WND DMG	2 Nw Bardstown, KY	TREES DOWN ON TEMPLIN AVENUE
Jul 19, 8:10 PM EDT	TSTM WND DMG	3 Se Bardstown, KY	TREES DOWN ON GREER LANE

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 19, 3:40 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.8 hours before the alert went out and 215 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: 922 J/kg
Mixed-layer CIN: -94 J/kg
Mixed-layer LCL: 1009 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 92 m²/s²
0-3 km storm-relative helicity: 75 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.

158 
WUUS53 KLMK 192348
SVRLMK
KYC179-215-200010-
/O.NEW.KLMK.SV.W.0404.120719T2348Z-120720T0010Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
748 PM EDT THU JUL 19 2012

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN NELSON COUNTY IN NORTH CENTRAL KENTUCKY...
  EASTERN SPENCER COUNTY IN NORTH CENTRAL KENTUCKY...

* UNTIL 810 PM EDT

* AT 747 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM CHAPLIN TO EAST BARDSTOWN...MOVING SOUTHEAST AT 20 MPH.

* SEVERE THUNDERSTORMS WILL ALSO IMPACT...
  BARDSTOWN...
  BOTLAND...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REPORT SEVERE WEATHER TO LOCAL LAW ENFORCEMENT OR POST YOUR REPORT TO
THE NATIONAL WEATHER SERVICE LOUISVILLE FACEBOOK PAGE.

&&

LAT...LON 3804 8510 3800 8513 3799 8517 3789 8515
      3788 8520 3785 8521 3787 8522 3787 8525
      3785 8525 3785 8528 3780 8531 3778 8535
      3776 8535 3777 8537 3771 8543 3784 8563
      3789 8558 3808 8522
TIME...MOT...LOC 2348Z 306DEG 19KT 3792 8515 3782 8540
WIND...HAIL 60MPH <.50IN

$$

RAS

2 follow-up statements

033 
WWUS53 KLMK 200001
SVSLMK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
801 PM EDT THU JUL 19 2012

KYC215-200011-
/O.CAN.KLMK.SV.W.0404.000000T0000Z-120720T0010Z/
SPENCER KY-
801 PM EDT THU JUL 19 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN SPENCER COUNTY IS
CANCELLED...

THE STORMS THAT PROMPTED THE WARNING HAVE MOVED INTO NELSON COUNTY. 

REPORT SEVERE WEATHER TO LOCAL LAW ENFORCEMENT OR POST YOUR REPORT TO
THE NATIONAL WEATHER SERVICE LOUISVILLE FACEBOOK PAGE.

LAT...LON 3789 8515 3789 8519 3785 8521 3787 8522
      3787 8525 3785 8525 3785 8528 3780 8531
      3778 8536 3776 8535 3777 8537 3771 8543
      3784 8563 3789 8558 3796 8544 3794 8536
      3797 8517
TIME...MOT...LOC 0001Z 306DEG 19KT 3788 8508 3778 8533

$$

KYC179-200010-
/O.CON.KLMK.SV.W.0404.000000T0000Z-120720T0010Z/
NELSON KY-
801 PM EDT THU JUL 19 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 810 PM EDT
FOR NORTHERN NELSON COUNTY...

AT 756 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 6 MILES EAST OF CHAPLIN TO WOODLAWN...MOVING SOUTHEAST
AT 20 MPH.

* SEVERE THUNDERSTORMS WILL ALSO IMPACT...

  MAINLY RURAL AREAS OF NORTHERN NELSON COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REPORT SEVERE WEATHER TO LOCAL LAW ENFORCEMENT OR POST YOUR REPORT TO
THE NATIONAL WEATHER SERVICE LOUISVILLE FACEBOOK PAGE.

&&

LAT...LON 3789 8515 3789 8519 3785 8521 3787 8522
      3787 8525 3785 8525 3785 8528 3780 8531
      3778 8536 3776 8535 3777 8537 3771 8543
      3784 8563 3789 8558 3796 8544 3794 8536
      3797 8517
TIME...MOT...LOC 0001Z 306DEG 19KT 3788 8508 3778 8533
WIND...HAIL 60MPH <.50IN

$$

RAS

637 
WWUS53 KLMK 200008
SVSLMK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
808 PM EDT THU JUL 19 2012

KYC179-200018-
/O.EXP.KLMK.SV.W.0404.000000T0000Z-120720T0010Z/
NELSON KY-
808 PM EDT THU JUL 19 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN NELSON COUNTY WILL
EXPIRE AT 810 PM EDT...

THE STORMS THAT PROMPTED THE WARNING HAVE WEAKENED AND ARE NO LONGER
SEVERE. HOWEVER STRONG STORMS REMAIN IN THE AREA. THESE ARE CAPABLE 
OF PRODUCING TORRENTIAL RAINFALL AND CONTINUOUS CLOUD TO GROUND 
LIGHTNING. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 11 PM 
EDT.

REPORT SEVERE WEATHER TO LOCAL LAW ENFORCEMENT OR POST YOUR REPORT TO
THE NATIONAL WEATHER SERVICE LOUISVILLE FACEBOOK PAGE.

LAT...LON 3789 8515 3789 8519 3785 8521 3787 8522
      3787 8525 3785 8525 3785 8528 3780 8531
      3778 8536 3776 8535 3777 8537 3771 8543
      3784 8563 3789 8558 3796 8544 3794 8536
      3797 8517
TIME...MOT...LOC 0008Z 306DEG 19KT 3786 8504 3776 8529

$$

RAS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 18, 8:04 PM EDT	Severe Thunderstorm Warning	LMK	Adair, Casey, Lincoln, Marion, Taylor	41 min
Jul 18, 8:06 PM EDT	Special Weather Statement	LMK	Jefferson	29 min
Jul 18, 8:08 PM EDT	Severe Thunderstorm Warning	LMK	Breckinridge, Hancock, Ohio	27 min
Jul 18, 8:30 PM EDT	Special Weather Statement	LMK	Bullitt, Jefferson, Spencer	30 min
Jul 18, 8:33 PM EDT	Areal Flood Advisory	LMK	Hancock	87 min
Jul 18, 9:07 PM EDT	Special Weather Statement	LMK	Nelson	28 min
Jul 18, 9:10 PM EDT	Severe Thunderstorm Warning	LMK	Bullitt, Larue, Nelson	30 min
Jul 18, 9:29 PM EDT	Severe Thunderstorm Warning	LMK	Larue, Nelson	31 min
Jul 18, 9:39 PM EDT	Special Weather Statement	LMK	Marion	31 min
Jul 18, 10:00 PM EDT	Severe Thunderstorm Warning	LMK	Green, Hart, Larue, Taylor	10 min
Jul 19, 3:33 AM EDT	Heat Advisory	LMK	Breckinridge, Bullitt, Butler, Edmonson, Grayson, Hancock and 9 more	17 hr
Jul 19, 10:44 AM EDT	Special Weather Statement	LMK	Casey	31 min
Jul 19, 1:00 PM EDT	Special Weather Statement	LMK	Harrison	30 min
Jul 19, 1:32 PM EDT	Special Weather Statement	LMK	Nicholas	28 min
Jul 19, 1:48 PM EDT	Special Weather Statement	LMK	Clark, Fayette	42 min
Jul 19, 2:20 PM EDT	Severe Thunderstorm Warning	LMK	Clark	30 min
Jul 19, 2:58 PM EDT	Special Weather Statement	LMK	Spencer	32 min
Jul 19, 3:09 PM EDT	Severe Thunderstorm Warning	LMK	Clark	31 min
Jul 19, 3:11 PM EDT	Severe Thunderstorm Warning	LMK	Bourbon, Fayette, Scott, Woodford	29 min
Jul 19, 3:26 PM EDT	Severe Thunderstorm Warning	LMK	Anderson, Franklin, Woodford	24 min
Jul 19, 3:41 PM EDT	Severe Thunderstorm Warning	LMK	Fayette, Scott, Woodford	29 min
Jul 19, 3:52 PM EDT	Areal Flood Advisory	LMK	Woodford	3 hr
Jul 19, 4:07 PM EDT	Severe Thunderstorm Warning	LMK	Bourbon, Clark, Fayette, Jessamine, Madison, Woodford	48 min
Jul 19, 4:38 PM EDT	Severe Thunderstorm Warning	LMK	Madison	52 min
Jul 19, 5:30 PM EDT	Severe Thunderstorm Warning	LMK	Madison	15 min
Jul 19, 5:33 PM EDT	Severe Thunderstorm Warning	LMK	Oldham	32 min
Jul 19, 5:52 PM EDT	Severe Thunderstorm Warning	LMK	Garrard, Jessamine, Madison	43 min
Jul 19, 6:03 PM EDT	Severe Thunderstorm Warning	LMK	Oldham	32 min
Jul 19, 6:15 PM EDT	Severe Thunderstorm Warning	LMK	Henry, Shelby	45 min
Jul 19, 6:25 PM EDT	Special Weather Statement	LMK	Jefferson	30 min
Jul 19, 6:31 PM EDT	Severe Thunderstorm Warning	LMK	Shelby	39 min
Jul 19, 6:31 PM EDT	Severe Thunderstorm Warning	LMK	Garrard, Madison	44 min
Jul 19, 6:34 PM EDT	Special Weather Statement	LMK	Oldham	31 min
Jul 19, 6:46 PM EDT	Severe Thunderstorm Warning	LMK	Ohio	29 min
Jul 19, 6:50 PM EDT	Severe Thunderstorm Warning	LMK	Jefferson	45 min
Jul 19, 6:56 PM EDT	Special Weather Statement	LMK	Butler, Grayson	44 min
Jul 19, 7:00 PM EDT	Severe Thunderstorm Warning	LMK	Anderson, Franklin, Henry, Scott, Shelby, Woodford	45 min
Jul 19, 7:09 PM EDT	Special Weather Statement	LMK	Spencer	31 min
Jul 19, 7:10 PM EDT	Severe Thunderstorm Warning	LMK	Butler, Ohio	45 min
Jul 19, 7:11 PM EDT	Severe Thunderstorm Warning	LMK	Bullitt, Nelson, Spencer	29 min
Jul 19, 7:20 PM EDT	Severe Thunderstorm Warning	LMK	Bullitt, Jefferson	9 min
Jul 19, 7:29 PM EDT	Severe Thunderstorm Warning	LMK	Anderson, Mercer, Nelson, Washington, Woodford	46 min
Jul 19, 7:46 PM EDT	Severe Thunderstorm Warning	LMK	Green, Hart	29 min
Jul 19, 7:50 PM EDT	Severe Thunderstorm Warning	LMK	Butler, Edmonson, Grayson, Hart	45 min
Jul 19, 7:51 PM EDT	Special Weather Statement	LMK	Breckinridge	44 min
Jul 19, 7:59 PM EDT	Severe Thunderstorm Warning	LMK	Boyle, Garrard, Larue, Marion, Mercer, Nelson and 2 more	46 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2012 Every 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.