Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 522, NWS Louisville, KY

September 7, 2012Jefferson County, Scott County, Indiana; Trimble County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Sep 7, 2012, 11:10 PM EDT for Jefferson County, Scott County, Indiana; Trimble County, Kentucky. It was in force for 40 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
Sep 7, 2012, 11:10 PM EDT (03:10 UTC)
Expired
Sep 7, 2012, 11:50 PM EDT
In force
40 min
Issued by
NWS Louisville, KY
Area
Storm-based polygon
Hail
0.5 in
Wind
60.0 mph

Counties Jefferson County, IN, Scott County, IN, Trimble County, KY

The radar

The Louisville radar (KLVX), 101 km from the middle of the area, began a volume at 03:10 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.

IssuedProductOfficeLasted
Sep 7, 9:10 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 3.2 hours before the alert went out and 158 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 2012-09-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 531 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 2012-09-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 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
531 J/kg
Mixed-layer CIN
-83 J/kg
Mixed-layer LCL
1512 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
195 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

736 
WUUS53 KLMK 080310
SVRLMK
INC077-143-KYC223-080350-
/O.NEW.KLMK.SV.W.0522.120908T0310Z-120908T0350Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
1110 PM EDT FRI SEP 7 2012

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN TRIMBLE COUNTY IN NORTH CENTRAL KENTUCKY...
  JEFFERSON COUNTY IN SOUTH CENTRAL INDIANA...
  EASTERN SCOTT COUNTY IN SOUTH CENTRAL INDIANA...

* UNTIL 1150 PM EDT

* AT 1105 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 7 MILES WEST OF DUPONT TO BLOCHER...MOVING EAST AT 40 MPH.

* SEVERE THUNDERSTORMS WILL ALSO IMPACT...
  MADISON...
  WAKEFIELD AND VOLGA...
  MADISON MUNICIPAL AIRPORT AND SALUDA...
  HANOVER BEACH AND WIRT...
  MOUNT PLEASANT AND TROUT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REPORT SEVERE WEATHER TO LOCAL LAW ENFORCEMENT...POST YOUR REPORT TO
THE NATIONAL WEATHER SERVICE LOUISVILLE FACEBOOK PAGE...OR TWEET YOUR
REPORT USING HASHTAG L...M...K...SPOTTER.

&&

LAT...LON 3891 8520 3869 8520 3874 8526 3873 8532
      3863 8522 3861 8523 3861 8574 3883 8566
      3883 8562 3885 8562 3886 8558 3888 8558
      3889 8554 3892 8554
TIME...MOT...LOC 0310Z 270DEG 32KT 3891 8558 3871 8562
WIND...HAIL 60MPH <.50IN

$$

TWF
1 follow-up statement
380 
WWUS53 KLMK 080339
SVSLMK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
1139 PM EDT FRI SEP 7 2012

INC143-080348-
/O.CAN.KLMK.SV.W.0522.000000T0000Z-120908T0350Z/
SCOTT IN-
1139 PM EDT FRI SEP 7 2012

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

THE STRONGEST THUNDERSTORMS ARE MOVING OUT OF THE COUNTY TO THE 
EAST. NO SEVERE WEATHER REPORTS HAVE BEEN RECEIVED BY THE NATIONAL 
WEATHER SERVICE AT THIS TIME.

REPORT SEVERE WEATHER TO LOCAL LAW ENFORCEMENT...POST YOUR REPORT TO
THE NATIONAL WEATHER SERVICE LOUISVILLE FACEBOOK PAGE...OR TWEET YOUR
REPORT USING HASHTAG L...M...K...SPOTTER.

LAT...LON 3861 8557 3889 8554 3892 8547 3891 8520
      3869 8520 3874 8526 3873 8532 3863 8522
      3861 8523
TIME...MOT...LOC 0338Z 270DEG 32KT 3891 8526 3871 8530

$$

INC077-KYC223-080350-
/O.CON.KLMK.SV.W.0522.000000T0000Z-120908T0350Z/
JEFFERSON IN-TRIMBLE KY-
1139 PM EDT FRI SEP 7 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1150 PM EDT
FOR NORTHERN TRIMBLE AND JEFFERSON COUNTIES...

AT 1133 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS AROUND 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE 
EXTENDING FROM BARBERSVILLE TO MILTON...MOVING EAST AT 40 MPH.

* SEVERE THUNDERSTORMS WILL ALSO IMPACT...
  MADISON...
  BROOKSBURG...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REPORT SEVERE WEATHER TO LOCAL LAW ENFORCEMENT...POST YOUR REPORT TO
THE NATIONAL WEATHER SERVICE LOUISVILLE FACEBOOK PAGE...OR TWEET YOUR
REPORT USING HASHTAG L...M...K...SPOTTER.

&&

LAT...LON 3861 8557 3889 8554 3892 8547 3891 8520
      3869 8520 3874 8526 3873 8532 3863 8522
      3861 8523
TIME...MOT...LOC 0338Z 270DEG 32KT 3891 8526 3871 8530
WIND...HAIL 60MPH <.50IN

$$

TWF

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 7, 8:30 PM EDTSpecial Weather StatementLMKDubois, Orange, Washington90 min
Sep 7, 9:50 PM EDTSevere Thunderstorm WarningLMKOrange, Washington45 min
Sep 7, 9:56 PM EDTSpecial Weather StatementLMKPerry54 min
Sep 7, 10:09 PM EDTSpecial Weather StatementLMKCrawford, Dubois, Orange56 min
Sep 7, 10:13 PM EDTSevere Thunderstorm WarningLMKDubois, Orange32 min
Sep 7, 10:36 PM EDTSevere Thunderstorm WarningLMKPerry29 min
Sep 7, 10:40 PM EDTSevere Thunderstorm WarningLMKClark, Crawford, Dubois, Harrison, Orange, Perry and 2 more40 min
Sep 7, 10:52 PM EDTSevere Thunderstorm WarningLMKPerry43 min
Sep 7, 10:54 PM EDTSpecial Weather StatementLMKHarrison31 min
Sep 7, 11:00 PM EDTSevere Thunderstorm WarningLMKCrawford, Harrison, Perry40 min
Sep 7, 11:06 PM EDTSevere Thunderstorm WarningLMKClark, Floyd, Harrison, Washington29 min
Sep 7, 11:23 PM EDTSpecial Weather StatementLMKCrawford32 min
Sep 7, 11:24 PM EDTSevere Thunderstorm WarningLMKClark, Floyd, Harrison46 min
Sep 7, 11:26 PM EDTSevere Thunderstorm WarningLMKHarrison29 min
Sep 7, 10:34 PM EDTSpecial Weather StatementLMKHancock46 min
Sep 7, 11:52 PM EDTSevere Thunderstorm WarningLMKBullitt, Hardin, Jefferson, Meade28 min
Sep 8, 12:04 AM EDTSpecial Weather StatementLMKButler, Edmonson, Grayson, Hardin, Logan, Simpson and 1 more26 min
Sep 8, 12:09 AM EDTSpecial Weather StatementLMKFranklin, Henry, Shelby, Spencer46 min
Sep 8, 12:14 AM EDTSpecial Weather StatementLMKHart, Larue, Nelson46 min
Sep 8, 12:39 AM EDTAreal Flood AdvisoryLMKJefferson111 min
Sep 8, 12:44 AM EDTSpecial Weather StatementLMKAllen, Barren, Edmonson, Logan, Simpson, Warren26 min
Sep 8, 12:48 AM EDTSpecial Weather StatementLMKAnderson, Franklin, Green, Harrison, Hart, Larue and 9 more42 min
Sep 8, 1:07 AM EDTSpecial Weather StatementLMKAllen, Barren, Butler, Edmonson, Logan, Simpson and 1 more43 min
Sep 8, 1:23 AM EDTSevere Thunderstorm WarningLMKLogan32 min
Sep 8, 1:29 AM EDTSpecial Weather StatementLMKAnderson, Bourbon, Clark, Fayette, Harrison, Nicholas and 2 more46 min
Sep 8, 2:02 AM EDTSpecial Weather StatementLMKAdair, Casey, Garrard, Jessamine, Lincoln, Madison and 2 more43 min
Sep 8, 2:07 AM EDTSpecial Weather StatementLMKBourbon, Clark, Nicholas43 min

Nearby

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