Alert archive / Kentucky / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 8, NWS Louisville, KY

January 17, 2012Bullitt County, Jefferson County, Kentucky; Harrison County, Indiana

NWS Louisville, KY issued this severe thunderstorm warning at Jan 17, 2012, 11:07 AM EST for Bullitt County, Jefferson County, Kentucky; Harrison County, Indiana. It was in force for 23 min. 4 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: Jan 17, 2012, 11:07 AM EST (16:07 UTC)
Expired: Jan 17, 2012, 11:30 AM EST
In force: 23 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Hail: 0.5 in
Wind: 60.0 mph

Counties Harrison County, IN, Bullitt County, KY, Jefferson County, KY

The radar

The Louisville radar (KLVX), 28 km from the middle of the area, began a volume at 16:07 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
Jan 17, 11:07 AM EST	TSTM WND DMG	2 Ssw Louisville, KY	4 LARGE UTILITY POLES BROKEN ON DAKOTA AVE AND FLOYD ST.
Jan 17, 11:15 AM EST	TSTM WND DMG	Louisville, KY	AIR CONDITIONING UNIT BLOWN OFF DOWNTOWN HOTEL.
Jan 17, 11:19 AM EST	TSTM WND DMG	1 Nnw Fern Creek, KY	SEVERAL TREES DOWN AND SEVERAL SNAPPED ALONG WITH SHINGLES BLOWN OFF HOUSES ON STONEY BROOK DR NEAR MICHAEL EDWARDS DR. A TREE WAS TOPPED NEAR ROMAN CT. THE ROOF OF ONE HOUSE WAS SHIFTED 4-6 INCHES. SOME SIDING TAKEN OFF OF HOUSES AS WELL.
Jan 17, 11:20 AM EST	TORNADO	1 Nnw Fern Creek, KY	AN NWS STORM SURVEY CONFIRMED AN EF-1 TORNADO WITH WINDS OF 95-100 MPH TOUCHED DOWN JUST TO THE NORTH OF THE INTERSECTION OF STONY BROOK DR AND HURSTBOURNE PKWY. THE TORNADO TRAVELED TO THE NNE FOR 0.45 MILES AND LIFTED NEAR THE INTERSECTION OF LAVERNE DR AND

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 12:00Z, 4.1 hours before the alert went out and 219 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 602 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 818 m²/s²
0-3 km storm-relative helicity: 844 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.

372 
WUUS53 KLMK 171607
SVRLMK
INC061-KYC029-111-171630-
/O.NEW.KLMK.SV.W.0008.120117T1607Z-120117T1630Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
1107 AM EST TUE JAN 17 2012

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN BULLITT COUNTY IN NORTH CENTRAL KENTUCKY...
  SOUTHERN JEFFERSON COUNTY IN NORTH CENTRAL KENTUCKY...
  CENTRAL HARRISON COUNTY IN SOUTH CENTRAL INDIANA...

* UNTIL 1130 AM EST

* AT 1103 AM EST...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 LOUISVILLE INTERNATIONAL AIRPORT TO DOGWOOD...MOVING EAST AT
  50 MPH. PEA SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS.

* SEVERE THUNDERSTORMS WILL ALSO IMPACT...
  VALLEY STATION...
  SHIVELY...
  PLEASURE RIDGE PARK...
  OKOLONA...
  JEFFERSONTOWN...
  MACEDONIA AND HAPPY HOLLOW...
  FISHERVILLE...
  HUNTERS HOLLOW AND FOX CHASE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER THAT SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCED WARNING. TAKE COVER NOW!

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 3821 8541 3818 8542 3801 8575 3808 8617
      3819 8592 3819 8590 3821 8588 3823 8584
TIME...MOT...LOC 1607Z 275DEG 44KT 3820 8570 3807 8605 
WIND...HAIL 60MPH <0.50IN

$$

AMS

1 follow-up statement

156 
WWUS53 KLMK 171624
SVSLMK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
1124 AM EST TUE JAN 17 2012

INC061-KYC029-111-171634-
/O.EXP.KLMK.SV.W.0008.000000T0000Z-120117T1630Z/
HARRISON IN-JEFFERSON KY-BULLITT KY-
1124 AM EST TUE JAN 17 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN BULLITT...
SOUTHERN JEFFERSON AND CENTRAL HARRISON COUNTIES WILL EXPIRE AT 1130
AM EST...

SIGNIFICANT WIND DAMAGE HAS BEEN REPORTED WITH THE EARLIER 
THUNDERSTORMS. DO NOT GO NEAR DOWNED POWER LINES. REPORT DAMAGE TO 
LOCAL LAW ENFORCEMENT AND HAVE THEM RELAY THE REPORT TO THE NATIONAL 
WEATHER SERVICE OFFICE IN LOUISVILLE.

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 3821 8541 3818 8542 3801 8575 3808 8617
      3819 8592 3819 8590 3821 8588 3823 8584
TIME...MOT...LOC 1624Z 275DEG 44KT 3818 8544 3805 8579

$$

AMS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 17, 10:14 AM EST	Severe Thunderstorm Warning	LMK	Meade	31 min
Jan 17, 10:27 AM EST	Tornado Warning	LMK	Hancock	43 days
Jan 17, 10:34 AM EST	Severe Thunderstorm Warning	LMK	Trimble	26 min
Jan 17, 10:43 AM EST	Severe Thunderstorm Warning	LMK	Meade	17 min
Jan 17, 10:50 AM EST	Severe Thunderstorm Warning	LMK	Breckinridge, Hancock	25 min
Jan 17, 10:54 AM EST	Tornado Warning	LMK	Jefferson, Oldham	36 min
Jan 17, 10:57 AM EST	Severe Thunderstorm Warning	LMK	Breckinridge, Meade	18 min
Jan 17, 11:00 AM EST	Special Weather Statement	LMK	Jefferson	30 min
Jan 17, 11:02 AM EST	Special Weather Statement	LMK	Trimble	28 min
Jan 17, 11:11 AM EST	Severe Thunderstorm Warning	LMK	Breckinridge, Grayson, Hancock, Ohio	19 min
Jan 17, 11:19 AM EST	Severe Thunderstorm Warning	LMK	Breckinridge, Bullitt, Hardin, Meade	26 min
Jan 17, 11:20 AM EST	Tornado Warning	LMK	Jefferson, Shelby, Spencer	25 min
Jan 17, 11:23 AM EST	Severe Thunderstorm Warning	LMK	Bullitt, Jefferson, Nelson, Spencer	37 min
Jan 17, 11:25 AM EST	Severe Thunderstorm Warning	LMK	Henry, Oldham, Trimble	35 min
Jan 17, 11:29 AM EST	Tornado Warning	LMK	Breckinridge, Grayson, Hardin	16 min
Jan 17, 11:42 AM EST	Severe Thunderstorm Warning	LMK	Shelby, Spencer	18 min
Jan 17, 11:44 AM EST	Severe Thunderstorm Warning	LMK	Breckinridge, Bullitt, Hardin, Larue, Meade, Nelson	31 min
Jan 17, 11:52 AM EST	Severe Thunderstorm Warning	LMK	Anderson, Fayette, Franklin, Scott, Shelby, Spencer and 1 more	23 min
Jan 17, 12:06 PM EST	Special Weather Statement	LMK	Grayson, Larue	24 min
Jan 17, 12:07 PM EST	Severe Thunderstorm Warning	LMK	Anderson, Mercer, Nelson, Spencer, Washington	23 min
Jan 17, 12:14 PM EST	Special Weather Statement	LMK	Bourbon, Clark, Fayette, Scott, Woodford	31 min
Jan 17, 12:16 PM EST	Special Weather Statement	LMK	Logan	29 min
Jan 17, 12:24 PM EST	Severe Thunderstorm Warning	LMK	Grayson, Green, Hardin, Hart, Larue, Nelson and 1 more	36 min
Jan 17, 12:27 PM EST	Tornado Warning	LMK	Grayson, Green, Hardin, Hart, Larue	33 min
Jan 17, 12:28 PM EST	Severe Thunderstorm Warning	LMK	Butler, Logan, Warren	17 min
Jan 17, 12:39 PM EST	Special Weather Statement	LMK	Edmonson, Hart	36 min
Jan 17, 12:46 PM EST	Severe Thunderstorm Warning	LMK	Allen, Barren, Edmonson, Warren	29 min
Jan 17, 12:48 PM EST	Special Weather Statement	LMK	Simpson	27 min
Jan 17, 12:50 PM EST	Special Weather Statement	LMK	Bourbon, Clark, Fayette, Nicholas	25 min
Jan 17, 12:56 PM EST	Tornado Warning	LMK	Warren	19 min
Jan 17, 1:10 PM EST	Special Weather Statement	LMK	Casey, Green, Taylor	35 min
Jan 17, 1:12 PM EST	Special Weather Statement	LMK	Allen, Barren, Metcalfe, Simpson	33 min
Jan 17, 1:14 PM EST	Special Weather Statement	LMK	Madison	31 min
Jan 17, 1:14 PM EST	Severe Thunderstorm Warning	LMK	Allen, Simpson	16 min
Jan 17, 1:16 PM EST	Special Weather Statement	LMK	Garrard	44 min
Jan 17, 1:20 PM EST	Tornado Warning	LMK	Allen, Simpson	25 min
Jan 17, 1:25 PM EST	Severe Thunderstorm Warning	LMK	Boyle, Garrard, Lincoln, Madison	35 min
Jan 17, 1:26 PM EST	Severe Thunderstorm Warning	LMK	Clark, Madison	19 min
Jan 17, 1:30 PM EST	Severe Thunderstorm Warning	LMK	Adair, Casey, Green, Hart, Marion, Taylor	30 min
Jan 17, 1:43 PM EST	Tornado Warning	LMK	Allen, Barren, Monroe	32 min
Jan 17, 1:52 PM EST	Severe Thunderstorm Warning	LMK	Casey, Lincoln	23 min
Jan 17, 1:59 PM EST	Severe Thunderstorm Warning	LMK	Adair, Casey, Russell, Taylor	31 min
Jan 17, 2:13 PM EST	Tornado Warning	LMK	Cumberland, Monroe	13 min
Jan 17, 9:29 AM EST	Severe Thunderstorm Warning	LMK	Orange, Washington	31 min
Jan 17, 9:31 AM EST	Severe Thunderstorm Warning	LMK	Crawford, Dubois, Orange, Perry	44 min
Jan 17, 9:54 AM EST	Special Weather Statement	LMK	Orange, Washington	36 min
Jan 17, 10:02 AM EST	Special Weather Statement	LMK	Washington	28 min
Jan 17, 10:24 AM EST	Special Weather Statement	LMK	Jefferson	36 min
Jan 17, 10:27 AM EST	Special Weather Statement	LMK	Perry	33 min
Jan 17, 10:30 AM EST	Special Weather Statement	LMK	Clark, Scott, Washington	30 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2012 Severe Thunderstorm Warnings in Indiana, 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.