Alert archive / Kentucky / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 101, NWS Louisville, KY

April 15, 2011Mercer County, Washington County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Apr 15, 2011, 11:29 PM EDT for Mercer County, Washington County, Kentucky. It was in force for 31 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: Apr 15, 2011, 11:29 PM EDT (03:29 UTC)
Expired: Apr 16, 2011, 12:00 AM EDT
In force: 31 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Mercer County, KY, Washington County, KY

The radar

The Louisville radar (KLVX), 85 km from the middle of the area, began a volume at 03:31 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

Cncnati-Daytn, OH (KILN), launched 00:00Z, 3.5 hours before the alert went out and 211 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: 1142 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 182 m²/s²
0-3 km storm-relative helicity: 385 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.

572 
WUUS53 KLMK 160329
SVRLMK
KYC167-229-160400-
/O.NEW.KLMK.SV.W.0101.110416T0329Z-110416T0400Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
1129 PM EDT FRI APR 15 2011

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MERCER COUNTY IN EAST CENTRAL KENTUCKY...
  EASTERN WASHINGTON COUNTY IN NORTH CENTRAL KENTUCKY...

* UNTIL MIDNIGHT EDT

* AT 1126 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED NEAR MACKVILLE...MOVING
  NORTHEAST AT 35 MPH. PENNY SIZE HAIL MAY ALSO ACCOMPANY THESE
  DAMAGING WINDS.

* THE SEVERE THUNDERSTORM WILL ALSO IMPACT...
  BATTLE...
  CARDWELL AND CORNISHVILLE...
  DUNCAN AND DUGANSVILLE...
  TERRAPIN AND MAYO...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

THIS IS A DANGEROUS STORM WITH DAMAGING WINDS...DESTRUCTIVE HAIL...
AND CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD IMMEDIATELY MOVE
TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM
WINDOWS.

TO REPORT DAMAGING WINDS...LARGE HAIL...OR FLOODING 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 3768 8501 3768 8504 3766 8503 3763 8506
      3775 8520 3789 8503 3790 8501 3795 8497
      3794 8485 3785 8480
TIME...MOT...LOC 0330Z 218DEG 30KT 3775 8507
WIND...HAIL 60MPH 0.75IN

$$

RS

2 follow-up statements

905 
WWUS53 KLMK 160346
SVSLMK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
1146 PM EDT FRI APR 15 2011

KYC229-160356-
/O.CAN.KLMK.SV.W.0101.000000T0000Z-110416T0400Z/
WASHINGTON KY-
1146 PM EDT FRI APR 15 2011

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN WASHINGTON COUNTY IS
CANCELLED...

TO REPORT DAMAGING WINDS...LARGE HAIL...OR FLOODING 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 3771 8500 3787 8502 3787 8500 3788 8500
      3789 8502 3795 8497 3794 8485 3785 8480
TIME...MOT...LOC 0346Z 218DEG 30KT 3786 8497

$$

KYC167-160400-
/O.CON.KLMK.SV.W.0101.000000T0000Z-110416T0400Z/
MERCER KY-
1146 PM EDT FRI APR 15 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EDT
FOR MERCER COUNTY...

AT 1144 PM EDT...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 DUNCAN...MOVING
NORTHEAST AT 35 MPH. PENNY SIZE HAIL MAY ALSO ACCOMPANY THESE
DAMAGING WINDS.

* THE SEVERE THUNDERSTORM WILL ALSO IMPACT...
  KIRKWOOD AND BONDVILLE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT DAMAGING WINDS...LARGE HAIL...OR FLOODING 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 3771 8500 3787 8502 3787 8500 3788 8500
      3789 8502 3795 8497 3794 8485 3785 8480
TIME...MOT...LOC 0346Z 218DEG 30KT 3786 8497
WIND...HAIL 60MPH 0.75IN

$$

RS

004 
WWUS53 KLMK 160357
SVSLMK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
1157 PM EDT FRI APR 15 2011

KYC167-160407-
/O.EXP.KLMK.SV.W.0101.000000T0000Z-110416T0400Z/
MERCER KY-
1157 PM EDT FRI APR 15 2011

...THE SEVERE THUNDERSTORM WARNING FOR MERCER COUNTY WILL EXPIRE AT
MIDNIGHT 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 PERIODS OF HEAVY RAIN AND DANGEROUS LIGHTNING.

TO REPORT DAMAGING WINDS...LARGE HAIL...OR FLOODING 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 3771 8500 3787 8502 3787 8500 3788 8500
      3789 8502 3795 8497 3794 8485 3785 8480
TIME...MOT...LOC 0357Z 218DEG 30KT 3793 8490

$$

RS

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 15, 8:04 PM EDT	Special Weather Statement	LMK	Logan	26 min
Apr 15, 9:47 PM EDT	Special Weather Statement	LMK	Allen	28 min
Apr 15, 9:54 PM EDT	Severe Thunderstorm Warning	LMK	Allen, Barren, Metcalfe	36 min
Apr 15, 10:21 PM EDT	Special Weather Statement	LMK	Butler, Ohio	24 min
Apr 15, 10:24 PM EDT	Severe Thunderstorm Warning	LMK	Green, Larue, Marion, Taylor	36 min
Apr 15, 10:29 PM EDT	Tornado Warning	LMK	Green, Marion, Taylor	16 min
Apr 15, 10:43 PM EDT	Severe Thunderstorm Warning	LMK	Marion, Taylor, Washington	32 min
Apr 15, 10:46 PM EDT	Special Weather Statement	LMK	Butler, Hancock, Ohio	29 min
Apr 15, 10:49 PM EDT	Severe Thunderstorm Warning	LMK	Logan	26 min
Apr 15, 11:00 PM EDT	Severe Thunderstorm Warning	LMK	Green, Taylor	30 min
Apr 15, 11:08 PM EDT	Special Weather Statement	LMK	Butler	22 min
Apr 15, 11:13 PM EDT	Tornado Warning	LMK	Marion, Washington	17 min
Apr 15, 11:15 PM EDT	Special Weather Statement	LMK	Breckinridge, Grayson, Hancock	30 min
Apr 15, 11:21 PM EDT	Severe Thunderstorm Warning	LMK	Adair	24 min
Apr 15, 11:21 PM EDT	Severe Thunderstorm Warning	LMK	Breckinridge, Hancock, Meade	24 min
Apr 15, 11:24 PM EDT	Tornado Warning	LMK	Adair, Casey, Taylor	23 min
Apr 15, 11:47 PM EDT	Special Weather Statement	LMK	Meade	28 min
Apr 15, 11:50 PM EDT	Special Weather Statement	LMK	Boyle	25 min
Apr 16, 12:08 AM EDT	Special Weather Statement	LMK	Boyle, Fayette, Jessamine, Mercer, Woodford	22 min
Apr 16, 12:15 AM EDT	River Flood Warning	LMK	Bourbon	21 hr
Apr 16, 12:30 AM EDT	Special Weather Statement	LMK	Fayette, Jessamine	30 min
Apr 16, 12:51 AM EDT	Special Weather Statement	LMK	Larue	24 min
Apr 16, 12:55 AM EDT	Special Weather Statement	LMK	Oldham	35 min
Apr 16, 1:11 AM EDT	Areal Flood Advisory	LMK	Garrard, Jessamine	3 hr
Apr 16, 1:16 AM EDT	Special Weather Statement	LMK	Washington	29 min
Apr 16, 1:38 AM EDT	Special Weather Statement	LMK	Anderson, Shelby, Spencer, Washington	22 min
Apr 16, 2:00 AM EDT	Special Weather Statement	LMK	Anderson, Franklin, Henry	30 min
Apr 16, 2:26 AM EDT	Special Weather Statement	LMK	Franklin, Scott	34 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2011 Every severe thunderstorm warning in 2011

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.