Alert archive / Kentucky / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 69, NWS Louisville, KY

May 14, 20104 counties in Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at May 14, 2010, 4:08 PM EDT for 4 counties in Kentucky. It was in force for 19 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 14, 2010, 4:08 PM EDT (20:08 UTC)
Expired: May 14, 2010, 4:27 PM EDT
In force: 19 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Boyle County, KY, Casey County, KY, Garrard County, KY, Lincoln County, KY

The radar

The Louisville radar (KLVX), 117 km from the middle of the area, began a volume at 20:10 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.

Issued	Product	Office	Lasted
May 14, 12:34 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 8.1 hours before the alert went out and 225 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: 2636 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 831 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 53 m²/s²
0-3 km storm-relative helicity: 85 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 5.3

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Louisville, KY wrote its last area forecast discussion before this severe thunderstorm warning went out at May 14, 3:19 PM EDT, 49 minutes earlier.

Area forecast discussion, May 14, 3:19 PM EDT, 49 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Hazardous weather outlook, May 14, 3:32 PM EDT, 36 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LOUISVILLE KY
332 PM EDT FRI MAY 14 2010

INZ076>079-083-084-089>092-KYZ023>043-045>049-053>057-061>067-
070>078-081-082-150800-
ORANGE IN-WASHINGTON IN-SCOTT IN-JEFFERSON IN-DUBOIS IN-
CRAWFORD IN-PERRY IN-HARRISON IN-FLOYD IN-CLARK IN-HANCOCK KY-
BRECKINRIDGE KY-MEADE KY-OHIO KY-GRAYSON KY-HARDIN KY-BULLITT KY-
JEFFERSON KY-OLDHAM KY-TRIMBLE KY-HENRY KY-SHELBY KY-FRANKLIN KY-
SCOTT KY-HARRISON KY-SPENCER KY-ANDERSON KY-WOODFORD KY-
FAYETTE KY-BOURBON KY-NICHOLAS KY-NELSON KY-WASHINGTON KY-
MERCER KY-JESSAMINE KY-CLARK KY-LARUE KY-MARION KY-BOYLE KY-
GARRARD KY-MADISON KY-BUTLER KY-EDMONSON KY-HART KY-GREEN KY-
TAYLOR KY-CASEY KY-LINCOLN KY-LOGAN KY-WARREN KY-SIMPSON KY-
ALLEN KY-BARREN KY-MONROE KY-METCALFE KY-ADAIR KY-RUSSELL KY-
CUMBERLAND KY-CLINTON KY-
332 PM EDT FRI MAY 14 2010 /232 PM CDT FRI MAY 14 2010/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL
INDIANA AND CENTRAL KENTUCKY.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THUNDERSTORMS WILL FORM ALONG AND AHEAD OF A COLD FRONT DRAPED
ACROSS CENTRAL KENTUCKY. THE GREATEST THREAT FOR SEVERE WEATHER
WILL BE ACROSS SOUTH CENTRAL KENTUCKY AS WELL AS THE SOUTHERN
BLUEGRASS REGION THIS AFTERNOON AND EARLY EVENING...WHERE LARGE
HAIL...DANGEROUS CLOUD TO GROUND LIGHTNING...AND HEAVY RAINFALL
ARE POSSIBLE.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

THE FRONT WILL SHIFT SOUTH INTO TENNESSEE SATURDAY. SCATTERED
THUNDERSTORMS WITH SMALL HAIL AND ADDITIONAL HEAVY RAINS ARE
POSSIBLE OVER SOUTH CENTRAL KENTUCKY DURING THE DAY.

A STRONG LOW PRESSURE SYSTEM WILL AFFECT THE AREA SUNDAY THROUGH
MONDAY NIGHT. PERIODS OF SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE
DURING THIS TIME PERIOD. THESE WILL BE MOST WIDESPREAD SUNDAY NIGHT
THROUGH THE DAY MONDAY. STRONG STORMS WILL ALSO BE POSSIBLE DURING
THIS TIME PERIOD WITH THE MAIN THREATS BEING HAIL AND STRONG WINDS.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS SHOULD REMAIN ACTIVE FOR THUNDERSTORMS THIS AFTERNOON AND
EARLY EVENING.

RJS/EES

In the hours before

Special weather statement, May 14, 2:24 PM EDT, 1 hour 44 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
224 PM EDT FRI MAY 14 2010

KYZ066-141845-
CASEY-
224 PM EDT FRI MAY 14 2010

...THUNDERSTORM WITH LIGHTNING...HEAVY RAIN...AND UP TO PENNY SIZE
HAIL IN SOUTHERN CASEY COUNTY...

AT 219 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED A
THUNDERSTORM 10 MILES SOUTH OF LIBERTY...AND MOVING EAST AT 25 MPH.

CLOUD TO GROUND LIGHTNING...HEAVY RAIN WITH RAINFALL RATES OF AROUND
ONE INCH PER HOUR...AND HAIL UP TO PENNY SIZE ARE EXPECTED WITH THIS
STORM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEEK SHELTER INDOORS UNTIL THE STORM HAS PASSED.

&&

LAT...LON 3719 8504 3733 8473 3732 8472 3729 8472
      3727 8474 3724 8473 3712 8491 3712 8492
      3711 8497
TIME...MOT...LOC 1822Z 250DEG 24KT 3718 8496

TWF

Special weather statement, May 14, 3:13 PM EDT, 55 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
313 PM EDT FRI MAY 14 2010

KYZ066-077-078-142000-
ADAIR-CASEY-RUSSELL-
313 PM EDT FRI MAY 14 2010

...STRONG THUNDERSTORM WITH DANGEROUS LIGHTNING...HEAVY RAIN...PENNY
SIZE HAIL...AND STRONG WINDS...

AT 210 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 9 MILES NORTHWEST OF JAMESTOWN...AND MOVING EAST
AT 20 MPH.

CONTINUOUS CLOUD TO GROUND LIGHTNING...HEAVY RAIN WITH RAINFALL RATES
OF AROUND ONE INCH PER HOUR REDUCING VISIBILITIES TO LESS THAN ONE
MILE...PENNY SIZE HAIL...AND STRONG GUSTY WINDS OF AROUND 45 TO 50
MPH...ARE EXPECTED WITH THIS STORM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...SEEK SHELTER INDOORS AND STAY
AWAY FROM WINDOWS. STAY TUNED TO NOAA ALL HAZARDS RADIO...
WEATHER.GOV/LOUISVILLE ON THE INTERNET...OR LOCAL MEDIA FOR LATER
UPDATES AND POSSIBLE WARNINGS.

&&

LAT...LON 3704 8518 3718 8526 3738 8477 3729 8472
      3727 8474 3724 8473 3711 8492
TIME...MOT...LOC 1913Z 251DEG 17KT 3712 8512

MJ

Local storm report, May 14, 3:42 PM EDT, 26 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Local storm report, May 14, 3:55 PM EDT, 13 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

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

Issued	Product	Office	Counties	Lasted
May 14, 7:22 AM EDT	Special Weather Statement	LMK	Warren	23 min
May 14, 7:53 AM EDT	Special Weather Statement	LMK	Allen, Barren	52 min
May 14, 8:06 AM EDT	Severe Thunderstorm Warning	LMK	Allen, Barren, Monroe	24 min
May 14, 8:27 AM EDT	Special Weather Statement	LMK	Logan	33 min
May 14, 8:59 AM EDT	Special Weather Statement	LMK	Metcalfe	31 min
May 14, 9:08 AM EDT	Severe Thunderstorm Warning	LMK	Adair, Cumberland, Metcalfe	37 min
May 14, 9:12 AM EDT	Special Weather Statement	LMK	Monroe	33 min
May 14, 9:43 AM EDT	Special Weather Statement	LMK	Russell	32 min
May 14, 2:15 PM EDT	Areal Flood Advisory	LMK	Clinton, Cumberland, Monroe	3 hr
May 14, 2:19 PM EDT	Severe Thunderstorm Warning	LMK	Cumberland, Monroe	26 min
May 14, 2:24 PM EDT	Special Weather Statement	LMK	Casey	21 min
May 14, 3:13 PM EDT	Special Weather Statement	LMK	Casey	47 min
May 14, 3:20 PM EDT	Severe Thunderstorm Warning	LMK	Adair, Casey, Russell	40 min
May 14, 4:26 PM EDT	Areal Flood Advisory	LMK	Russell	3 hr
May 14, 4:47 PM EDT	Special Weather Statement	LMK	Clinton	28 min
May 14, 5:08 PM EDT	Special Weather Statement	LMK	Clinton, Russell	37 min
May 14, 5:55 PM EDT	Special Weather Statement	LMK	Boyle	35 min
May 14, 6:56 PM EDT	Special Weather Statement	LMK	Nicholas	34 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2010 Every severe thunderstorm warning in 2010

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.