Alert archive / Tennessee / Special Weather Statements in 2013

Special Weather Statement, NWS Nashville, TN

June 20, 2013Cumberland County, Overton County, Putnam County, Tennessee

NWS Nashville, TN issued this special weather statement at Jun 20, 2013, 3:49 PM CDT for Cumberland County, Overton County, Putnam County, Tennessee. It was in force for 26 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
Jun 20, 2013, 3:49 PM CDT (20:49 UTC)
Expired
Jun 20, 2013, 4:15 PM CDT
In force
26 min
Issued by
NWS Nashville, TN

Counties Cumberland County, TN, Overton County, TN, Putnam County, TN

The radar

The Nashville radar (KOHX), 115 km from the middle of the area, began a volume at 20:52 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

Nashville Metro, TN (KBNA), launched 12:00Z, 8.8 hours before the alert went out and 118 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, Nashville Metro, TN at 12:00Z on 2013-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 692 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, Nashville Metro, TN at 12:00Z on 2013-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 10 square meters per square second.193958Sfc1 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
692 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
1077 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
10 m²/s²
0-3 km storm-relative helicity
19 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.

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What forecasters said that day

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

NWS Nashville, TN wrote its last area forecast discussion before this special weather statement went out at Jun 20, 3:04 PM CDT, 45 minutes earlier.

Area forecast discussion, Jun 20, 3:04 PM CDT, 45 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
304 PM CDT THU JUN 20 2013

.DISCUSSION...
WEAK UPPER TROUGH REMAINS OVER THE REGION THIS AFTERNOON WITH
SHORTWAVE JUST UPSTREAM. MODERATE MOISTURE SOURCE AND SLIGHTLY
INCREASED INSTABILITY EXPECTED TO CONTINUE ISO-SCT CONVECTION
INTO THE EARLY EVE.

WEAK UPPER TROUGH WILL MAKE SLOW TRANSITION TO RIDGING INTO THE
LATE WEEKEND...ALTHOUGH WEAK TROUGH AXIS DOES LINGER ALONG THE
EASTERN SEABOARD. THIS WILL KEEP ANYTHING ORGANIZED FROM AFFECTING
THE MID-SOUTH THUS CURRENT TREND WILL CONTINUE. MODERATE MOISTURE
BELOW H7 AND DAYTIME HEATING/ELEVATED INSTABILITY WILL KEEP
LARGELY DIURNAL ISO-SCT STORMS IN THE MIX THROUGH LATE SUNDAY.

NO REAL APPRECIABLE CHANGES IN OVERALL PATTERN EARLY NEXT WEEK
BUT CHANGES ARE IN SIGHT BY EARLY WED. UPPER RIDGE BREAKING DOWN
MID-WEEK AS UPPER LOW SCOOTS NEAR THE US/CANADIAN BORDER. THIS
WILL SHARPEN TROUGH OVER THE EASTERN US LATE WEEK...WITH AXIS
SWINGING THROUGH POSSIBLY FRI. DAYTIME HEATING PUSHING TEMPS WELL
INTO THE 80S TO AROUND 90 WILL PRODUCE DIURNAL CONVECTION THROUGH
WED...WITH PCPN CHANCES RAMPING UP LATE IN THE WEEK WITH INCOMING
TROUGH.

&&

.PRELIMINARY POINT TEMPS/POPS...
NASHVILLE      68  89  68  89 /  20  20  20  20
CLARKSVILLE    66  90  67  89 /  20  20  20  20
CROSSVILLE     61  82  62  84 /  20  20  20  20
COLUMBIA       67  89  68  89 /  20  20  20  20
LAWRENCEBURG   67  89  67  89 /  20  20  20  20
WAVERLY        67  90  67  89 /  20  20  20  20

&&

.OHX WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

07
Hazardous weather outlook, Jun 20, 3:30 PM CDT, 19 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
330 PM CDT THU JUN 20 2013

TNZ005>011-022>034-056>066-075-077>080-093>095-211015-
STEWART-MONTGOMERY-ROBERTSON-SUMNER-MACON-CLAY-PICKETT-BENTON-
HOUSTON-HUMPHREYS-DICKSON-CHEATHAM-DAVIDSON-WILSON-TROUSDALE-
SMITH-JACKSON-PUTNAM-OVERTON-FENTRESS-PERRY-HICKMAN-LEWIS-
WILLIAMSON-MAURY-MARSHALL-RUTHERFORD-CANNON-DE KALB-WHITE-
CUMBERLAND-BEDFORD-COFFEE-WARREN-GRUNDY-VAN BUREN-WAYNE-LAWRENCE-
GILES-
330 PM CDT THU JUN 20 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

ISOLATED STRONG STORMS WILL CONTINUE THROUGH THE LATE AFTERNOON AND
EVENING HOURS. THE STRONGEST STORMS COULD PRODUCE TORRENTIAL
RAINFALL...GUSTY WINDS TO AROUND 50 MPH AND DANGEROUS CLOUD TO
GROUND LIGHTNING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

AL

In the hours before

Special weather statement, Jun 20, 2:34 PM CDT, 1 hour 15 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
234 PM CDT THU JUN 20 2013

TNZ011-034-066-202015-
CUMBERLAND-FENTRESS-PICKETT-
234 PM CDT THU JUN 20 2013

...SIGNIFICANT WEATHER ADVISORY FOR CUMBERLAND...FENTRESS AND PICKETT
COUNTIES...

AT 229 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 9 MILES EAST OF
BYRDSTOWN TO 11 MILES NORTH OF PIKEVILLE...MOVING SOUTHEAST AT 5 MPH.

SOME LOCATIONS IN THE PATH INCLUDE PLEASANT HILL...PALL MALL...INDIAN
ROCK LAKE...CLARKRANGE...LAKE TANSI...GRIMSLEY...JAMESTOWN...
CROSSVILLE AND ALLARDT.

SMALL HAIL...VERY HEAVY RAINFALL AND WINDS 40 TO 50 MPH ARE EXPECTED
WITH THESE STORMS.

LAT...LON 3629 8479 3629 8487 3621 8491 3615 8490
      3600 8472 3591 8469 3576 8491 3577 8525
      3591 8522 3600 8526 3611 8522 3610 8515
      3614 8510 3621 8508 3629 8512 3639 8512
      3662 8504 3660 8478 3640 8467

TB12
Special weather statement, Jun 20, 2:42 PM CDT, 1 hour 7 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
242 PM CDT THU JUN 20 2013

TNZ008-027-028-059-062-202015-
DAVIDSON-RUTHERFORD-SUMNER-WILLIAMSON-WILSON-
242 PM CDT THU JUN 20 2013

...SIGNIFICANT WEATHER ADVISORY FOR DAVIDSON...RUTHERFORD...SUMNER...
WILLIAMSON AND WILSON COUNTIES...

AT 238 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A STRONG THUNDERSTORM NEAR ANTIOCH...MOVING SOUTHEAST AT 15 MPH.

SOME LOCATIONS IN THE PATH INCLUDE OAK HILL...BERRY HILL...ANTIOCH...
PERCY PRIEST LAKE...RURAL HILL...LA VERGNE AND SMYRNA.

SMALL HAIL...VERY HEAVY RAINFALL RESULTING IN REDUCED VISIBILITIES
AND WIND GUSTS 40 TO 50 MPH ARE POSSIBLE WITH THIS STORM.

LAT...LON 3631 8652 3608 8638 3587 8654 3588 8684
      3609 8697 3632 8681

TB12
Special weather statement, Jun 20, 3:26 PM CDT, 23 minutes before
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Local storm report, Jun 20, 3:39 PM CDT, 10 minutes before
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Special weather statement, Jun 20, 3:43 PM CDT, 6 minutes before
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Special weather statement, Jun 20, 3:49 PM CDT, 0 minutes before
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The office that day

Everything else NWS Nashville, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 20, 1:24 PM CDTSpecial Weather StatementOHXSumner36 min
Jun 20, 1:32 PM CDTSpecial Weather StatementOHXCumberland, Fentress28 min
Jun 20, 2:00 PM CDTSpecial Weather StatementOHXCumberland, Fentress30 min
Jun 20, 2:19 PM CDTSpecial Weather StatementOHXDavidson26 min
Jun 20, 2:34 PM CDTSpecial Weather StatementOHXCumberland, Fentress41 min
Jun 20, 2:42 PM CDTSpecial Weather StatementOHXDavidson33 min
Jun 20, 3:07 PM CDTSevere Thunderstorm WarningOHXDavidson, Rutherford, Williamson38 min
Jun 20, 3:26 PM CDTSpecial Weather StatementOHXRutherford34 min
Jun 20, 3:27 PM CDTAreal Flood AdvisoryOHXCumberland, Putnam3 hr
Jun 20, 3:43 PM CDTSpecial Weather StatementOHXWilson47 min
Jun 20, 3:53 PM CDTSpecial Weather StatementOHXDeKalb37 min
Jun 20, 3:59 PM CDTSpecial Weather StatementOHXRutherford31 min
Jun 20, 4:11 PM CDTSpecial Weather StatementOHXRutherford19 min
Jun 20, 4:19 PM CDTSpecial Weather StatementOHXPutnam26 min
Jun 20, 4:25 PM CDTSpecial Weather StatementOHXPutnam20 min
Jun 20, 4:28 PM CDTSpecial Weather StatementOHXSmith32 min
Jun 20, 4:31 PM CDTSpecial Weather StatementOHXRutherford29 min
Jun 20, 4:35 PM CDTSevere Thunderstorm WarningOHXBedford, Rutherford25 min
Jun 20, 4:44 PM CDTSpecial Weather StatementOHXPutnam31 min
Jun 20, 4:53 PM CDTSpecial Weather StatementOHXCannon22 min
Jun 20, 4:54 PM CDTSevere Thunderstorm WarningOHXRobertson36 min
Jun 20, 4:59 PM CDTSpecial Weather StatementOHXDeKalb31 min
Jun 20, 5:00 PM CDTSpecial Weather StatementOHXBedford, Marshall30 min
Jun 20, 5:01 PM CDTSevere Thunderstorm WarningOHXCannon, DeKalb29 min
Jun 20, 5:13 PM CDTSevere Thunderstorm WarningOHXDeKalb, Putnam, Smith32 min
Jun 20, 5:29 PM CDTSpecial Weather StatementOHXMarshall31 min
Jun 20, 5:36 PM CDTSpecial Weather StatementOHXCannon39 min
Jun 20, 5:50 PM CDTSpecial Weather StatementOHXClay40 min
Jun 20, 6:22 PM CDTSpecial Weather StatementOHXClay23 min
Jun 20, 6:34 PM CDTSpecial Weather StatementOHXDavidson41 min
Jun 20, 6:55 PM CDTSpecial Weather StatementOHXCheatham50 min

Nearby

Special Weather Statements in Tennessee, 2013Every special weather statement in 2013

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.