Alert archive / Kentucky / Tornado Warnings in 2012

Tornado Warning 87, NWS Louisville, KY

April 30, 2012Franklin County, Kentucky

NWS Louisville, KY issued this tornado warning at Apr 30, 2012, 8:27 PM EDT for Franklin County, Kentucky. It was in force for 33 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
Apr 30, 2012, 8:27 PM EDT (00:27 UTC)
Expired
Apr 30, 2012, 9:00 PM EDT
In force
33 min
Issued by
NWS Louisville, KY
Area
Storm-based polygon

County Franklin County, KY

The radar

The Louisville radar (KLVX), 98 km from the middle of the area, began a volume at 00:28 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
Apr 30, 8:35 PM EDTFUNNEL CLOUDFrankfort, KY2 MILES NORTHEAST OF THE AIRPORT.

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.

IssuedProductOfficeLasted
Apr 30, 6:04 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.5 hours before the alert went out and 163 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 2012-05-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 98 joules per kilogram.LCLLFCEL10008507005003002001001 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 2012-05-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 102 square meters per square second.19395878Sfc1 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
98 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
1642 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
102 m²/s²
0-3 km storm-relative helicity
94 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

282 
WFUS53 KLMK 010027
TORLMK
KYC073-010100-
/O.NEW.KLMK.TO.W.0087.120501T0027Z-120501T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
827 PM EDT MON APR 30 2012

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  FRANKLIN COUNTY IN EAST CENTRAL KENTUCKY...
  THIS INCLUDES THE CITY OF FRANKFORT...

* UNTIL 900 PM EDT...

* AT 826 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR FRANKFORT...MOVING NORTHEAST AT 45 MPH.

* THIS TORNADIC STORM WILL ALSO IMPACT...
  SWITZER AND ELSINORE...
  ELMVILLE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW! IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN LOUISVILLE.

&&

LAT...LON 3820 8473 3814 8486 3812 8487 3810 8492
      3810 8494 3821 8501 3822 8500 3827 8500
      3835 8480 3834 8478 3835 8474
TIME...MOT...LOC 0027Z 245DEG 38KT 3821 8488

$$

AL
2 follow-up statements
892 
WWUS53 KLMK 010043
SVSLMK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
843 PM EDT MON APR 30 2012

KYC073-010100-
/O.CON.KLMK.TO.W.0087.000000T0000Z-120501T0100Z/
FRANKLIN KY-
843 PM EDT MON APR 30 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM EDT FOR NORTHERN
FRANKLIN COUNTY...

AT 838 PM EDT...THE PREVIOUS TORNADIC STORM HAD MOVED EAST INTO 
SCOTT COUNTY WHERE A NEW TORNADO WARNING HAS BEEN ISSUED DOWNSTREAM. 
A NEW STORM FROM DOPPLER RADAR INDICATED STRONG ROTATION NEAR 
BRYANT...MOVING NORTHEAST AT 45 MPH.

* THIS DANGEROUS STORM WILL ALSO IMPACT...
  FRANKFORT...
  PEAKS MILL AND SWITZER...
  ELMVILLE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS POSSIBLE TORNADO. TAKE COVER NOW! IF 
YOU WAIT TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A 
SAFE PLACE.

TORNADOES ARE DIFFICULT TO SEE AT NIGHT. TAKE COVER NOW.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN LOUISVILLE.

&&

LAT...LON 3824 8473 3820 8488 3822 8500 3827 8500
      3835 8480 3834 8478 3835 8474
TIME...MOT...LOC 0042Z 245DEG 38KT 3828 8490

$$

AL
759 
WWUS53 KLMK 010054
SVSLMK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
854 PM EDT MON APR 30 2012

KYC073-010104-
/O.EXP.KLMK.TO.W.0087.000000T0000Z-120501T0100Z/
FRANKLIN KY-
854 PM EDT MON APR 30 2012

...THE TORNADO WARNING FOR NORTHERN FRANKLIN COUNTY WILL EXPIRE AT
900 PM EDT...

THE STORMS THAT PROMPTED THE WARNING HAVE MOVED OUT OF THE WARNED 
AREA INTO SCOTT COUNTY WHERE A TORNADO WARNING STILL REMAINS THERE. 

TO REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE...CALL  
LOCAL LAW ENFORCEMENT AND HAVE THEM RELAY YOUR REPORT TO US WHEN YOU 
CAN DO SO SAFELY.

LAT...LON 3824 8473 3820 8488 3822 8500 3827 8500
      3835 8480 3834 8478 3835 8474
TIME...MOT...LOC 0054Z 245DEG 38KT 3833 8475

$$

AL

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 30, 8:07 PM EDTSpecial Weather StatementLMKCasey, Taylor23 min
Apr 30, 8:14 PM EDTSpecial Weather StatementLMKFranklin, Henry, Shelby31 min
Apr 30, 8:16 PM EDTSpecial Weather StatementLMKHenry14 min
Apr 30, 8:40 PM EDTTornado WarningLMKScott35 min
Apr 30, 9:14 PM EDTSpecial Weather StatementLMKGreen, Taylor31 min
May 1, 5:44 AM EDTSpecial Weather StatementLMKSimpson31 min
May 1, 6:07 AM EDTSpecial Weather StatementLMKAllen38 min
May 1, 7:48 AM EDTSpecial Weather StatementLMKWarren27 min
May 1, 1:34 PM EDTSpecial Weather StatementLMKSimpson26 min
May 1, 1:38 PM EDTSpecial Weather StatementLMKAllen37 min
May 1, 2:13 PM EDTSpecial Weather StatementLMKOhio32 min
May 1, 2:19 PM EDTSevere Thunderstorm WarningLMKHancock, Ohio26 min
May 1, 2:20 PM EDTSpecial Weather StatementLMKMonroe25 min
May 1, 2:41 PM EDTSpecial Weather StatementLMKBarren34 min
May 1, 2:42 PM EDTSpecial Weather StatementLMKBreckinridge33 min
May 1, 2:59 PM EDTSpecial Weather StatementLMKGreen, Larue31 min
May 1, 3:21 PM EDTSpecial Weather StatementLMKBreckinridge24 min
May 1, 3:23 PM EDTSpecial Weather StatementLMKMarion37 min
May 1, 3:26 PM EDTSevere Thunderstorm WarningLMKBreckinridge, Hardin, Meade34 min
May 1, 3:40 PM EDTSevere Thunderstorm WarningLMKMarion, Washington35 min
May 1, 3:56 PM EDTSpecial Weather StatementLMKBullitt34 min
May 1, 4:11 PM EDTSevere Thunderstorm WarningLMKBullitt, Hardin, Nelson34 min
May 1, 4:19 PM EDTSpecial Weather StatementLMKAnderson26 min
May 1, 4:34 PM EDTSevere Thunderstorm WarningLMKTrimble26 min
May 1, 4:34 PM EDTSevere Thunderstorm WarningLMKBullitt, Nelson, Spencer26 min
May 1, 4:44 PM EDTTornado WarningLMKTrimble31 min
May 1, 5:00 PM EDTSpecial Weather StatementLMKNelson, Spencer30 min
May 1, 5:26 PM EDTSpecial Weather StatementLMKHarrison34 min

Nearby

Tornado Warnings in Kentucky, 2012Every tornado warning in 2012Tornadoes 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.