Alert archive / Kentucky / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 166, NWS Louisville, KY

March 23, 2012Breckinridge County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Mar 23, 2012, 5:50 PM CDT for Breckinridge County, Kentucky. It was in force for 25 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: Mar 23, 2012, 5:50 PM CDT (22:50 UTC)
Expired: Mar 23, 2012, 6:15 PM CDT
In force: 25 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

County Breckinridge County, KY

The radar

The Louisville radar (KLVX), 47 km from the middle of the area, began a volume at 22:52 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.

The watch it was issued in

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

Issued	Product	Office	Lasted
Mar 23, 5:25 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 10.8 hours before the alert went out and 173 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: 351 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 575 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 129 m²/s²
0-3 km storm-relative helicity: 122 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

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

366 
WUUS53 KLMK 232250
SVRLMK
KYC027-232315-
/O.NEW.KLMK.SV.W.0166.120323T2250Z-120323T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
550 PM CDT FRI MAR 23 2012

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN BRECKINRIDGE COUNTY IN NORTH CENTRAL KENTUCKY...

* UNTIL 615 PM CDT

* AT 547 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED NEAR MCCOY...MOVING NORTHEAST AT
  25 MPH. NICKEL SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS.

* THE SEVERE THUNDERSTORM WILL ALSO IMPACT...
  MOOK AND SE REE...
  BURAS AND LOCUST HILL...
  WOODROW AND CUSTER...
  GRAYSVILLE AND HENSLEY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED...MOVE QUICKLY TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

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 3781 8637 3776 8617 3771 8620 3759 8633
      3759 8634 3759 8635 3758 8636 3762 8643
TIME...MOT...LOC 2251Z 207DEG 22KT 3763 8637
WIND...HAIL 60MPH 0.88IN

$$

AMS

1 follow-up statement

243 
WWUS53 KLMK 232303
SVSLMK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
603 PM CDT FRI MAR 23 2012

KYC027-232315-
/O.CON.KLMK.SV.W.0166.000000T0000Z-120323T2315Z/
BRECKINRIDGE KY-
603 PM CDT FRI MAR 23 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR EASTERN BRECKINRIDGE COUNTY...

AT 601 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR MOOK...MOVING NORTHEAST
AT 25 MPH. NICKEL SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS.

* THE SEVERE THUNDERSTORM WILL ALSO IMPACT...
  WOODROW AND DYER...
  GRAYSVILLE AND CUSTER...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

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 3781 8637 3776 8617 3771 8620 3765 8626
      3768 8641
TIME...MOT...LOC 2303Z 207DEG 22KT 3770 8633
WIND...HAIL 60MPH 0.88IN

$$

AMS

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 23, 12:58 PM CDT	Special Weather Statement	LMK	Spencer	32 min
Mar 23, 1:18 PM CDT	Tornado Warning	LMK	Jefferson	27 min
Mar 23, 1:27 PM CDT	Tornado Warning	LMK	Jefferson, Shelby, Spencer	33 min
Mar 23, 2:00 PM CDT	Special Weather Statement	LMK	Henry	30 min
Mar 23, 2:30 PM CDT	Special Weather Statement	LMK	Trimble	30 min
Mar 23, 2:40 PM CDT	Tornado Warning	LMK	Trimble	5 min
Mar 23, 2:56 PM CDT	Special Weather Statement	LMK	Nelson	34 min
Mar 23, 5:31 PM CDT	Special Weather Statement	LMK	Breckinridge	29 min
Mar 23, 5:49 PM CDT	Special Weather Statement	LMK	Breckinridge	26 min
Mar 23, 6:23 PM CDT	Severe Thunderstorm Warning	LMK	Breckinridge, Meade	14 min
Mar 23, 6:23 PM CDT	Severe Thunderstorm Warning	LMK	Meade	37 min
Mar 23, 6:33 PM CDT	Special Weather Statement	LMK	Hardin	27 min
Mar 23, 6:43 PM CDT	Severe Thunderstorm Warning	LMK	Breckinridge, Hardin, Meade	32 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.