Alert archive / Tennessee / Special Weather Statements in 2014

Special Weather Statement, NWS Nashville, TN

June 20, 20144 counties in Tennessee

NWS Nashville, TN issued this special weather statement at Jun 20, 2014, 3:49 PM CDT for 4 counties in Tennessee. It was in force for 41 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, 2014, 3:49 PM CDT (20:49 UTC)
Expired: Jun 20, 2014, 4:30 PM CDT
In force: 41 min
Issued by: NWS Nashville, TN

Counties Dickson County, TN, Hickman County, TN, Lewis County, TN, Perry County, TN

The radar

The Nashville radar (KOHX), 93 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 83 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: 987 J/kg
Mixed-layer CIN: -36 J/kg
Mixed-layer LCL: 1098 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: -2 m²/s²
0-3 km storm-relative helicity: -3 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, 1:03 PM CDT, 2 hours 46 minutes earlier.

Area forecast discussion, Jun 20, 1:03 PM CDT, 2 hours 46 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
103 PM CDT FRI JUN 20 2014

.UPDATE...

18Z TAF DISCUSSION.

&&

.AVIATION...

RADAR INDICATES ISOLATED SHOWERS AND STORMS NEAR CSV...WITH OTHERS
APPROACHING CKV FROM THE NORTHWEST. WILL CONTINUE MENTION OF VCSH/VCTS
AT ALL AIRPORTS THROUGH 02Z...BUT AMENDMENTS WILL BE POSSIBLE
ESPECIALLY AT CKV. OTHERWISE...ANTICIPATE VFR CONDITIONS TODAY
WITH LIGHT WEST TO SOUTHWEST WINDS. PATCHY FOG WILL BRING MVFR
VIS TO CSV OVERNIGHT.

SHAMBURGER

&&

.PREV DISCUSSION... /ISSUED 953 AM CDT FRI JUN 20 2014/

UPDATE...
FORECAST APPEARS TO BE ON TRACK FOR TODAY. NO SHOWERS IN OUR AREA
SO FAR THIS MORNING BUT PRECIP CHANCES EXPECTED TO INCREASE FROM
THE NORTHWEST THIS AFTERNOON WITH SCATTERED SHOWERS AND
THUNDERSTORMS POSSIBLE. MINOR CHANGES TO HOURLY TEMPERATURES...NO
OTHER CHANGES NEEDED.

PREV DISCUSSION... /ISSUED 640 AM CDT FRI JUN 20 2014/

UPDATE...FOR 12Z AVIATION DISCUSSION.

AVIATION...12Z AVIATION DISCUSSION.
MOSTLY VFR CONDITIONS ARE EXPECTED THRU 21/12Z. EXPECT HIGH END MVFR FOG
VSBYS CSV TO BURN OFF BY 21/14Z...WITH SCT/BKN VFR/HIGH END MVFR CSV...CU...
TCU...AND EVEN CB'S WILL BECOME PREVALENT BY 20/16Z. ISO SHWRS/TSTMS MAY
DEVELOP AS SOON AS 20/16Z ALSO...BUT WITH SIGNIFICANT UNCERTAINTY CONCERNING
ACTUAL LOCATION DEVELOPMENT...ADDRESSED WITH VCTS REMARKS. WX PATTERN SFC/ALOFT
GIVING SOME INDICATIONS THAT CONVECTIVE ACTIVITY COULD LAST PAST 21/02Z WHEN
DIURNAL INFLUENCES DIMINISH...BUT NOT CERTAIN ENOUGH AT THIS TIME TO MENTION.
MVFR FOG POSSIBLE AGAIN CSV BY 21/05Z.

PREV DISCUSSION... /ISSUED 334 AM CDT FRI JUN 20 2014/

DISCUSSION...
UPPER HIGH TO MOVE SW TOWARD THE TX GULF COAST TODAY. NORTHWESTERLY
FLOW WILL PICK UP BUT THE ASSOCIATED SHORTWAVE THAT WE SAW YESTERDAY
LOOKS A LITTLE LESS DEFINED. STILL THOUGH...WITH WARM AND HUMID
CONDITIONS EXPECTED ONCE AGAIN...SHOWER AND TSTM DEVELOPMENT WILL BE
POSSIBLE TODAY AND INTO TONIGHT. BUT...UPPER DIVERGENCE AND THE
HIGHER MRH FIELDS ARE NOT IN PLACE SO POPS WILL BE HELD DOWN INTO
THE CHC CATEGORY AT BEST.

BY SATURDAY AFTERNOON AND INTO SUNDAY...DRIER AIR IS EXPECTED TO
MOVE ACROSS THE MID STATE. LOW LEVEL WIND FLOW WILL BE LIGHT
NORTHERLY SO THE DRYING OUT PROCESS LOOKS REASONABLE. LOWER
CAPES...DRIER AIR AND GENERAL WEAK SUBSIDENCE WILL MAKE CONVECTION
RATHER HARD TO COME BY. MAY BE ABLE TO LEAVE CONVECTION OUT OF THE
FORECAST FOR SATURDAY AND SATURDAY NIGHT. BUT...MAY HAVE TO LEAVE A
SLIGHT POP GOING DEPENDING ON ISC DATA.

AS FOR THE SHORT TERM TEMPS...MODELS CONTINUE TO RUN TOO COOL ON
HIGH TEMPS. WILL THEREFORE GO ABOVE BY 1 DEGREE TODAY. FOR THE
REMAINDER OF THE FCST...WILL GENERALLY GO ABOVE BY A DEGREE OR TWO.
OTW...ABOVE NORMAL TEMPS TO PREVAIL.

IN THE EXT FCST...RIDGING IS NOT INDICATED ACROSS THE SOUTHEASTERN
U.S.. IN FACT...YOU'D HAVE TO GO WEST TOWARD BAJA BEFORE YOU
ENCOUNTER RIDGING. THAT SAID...CONVECTION CHANCES WILL CONTINUE
THROUGH THE EXTENDED. THERE WILL BE A BROAD LONGWAVE TROUGH IN
PLACE. WE WILL ACTUALLY SEE A FRONTAL BOUNDARY THAT IS ON APPROACH
ON TUESDAY OR WEDNESDAY. THIS WILL INCREASE OUR POPS FOR TUES AND
WED BUT THE BOUNDARY WILL BE WEAKENING AS THE BETTER UPPER DYNAMICS
WITH THE TROUGH REMAIN WELL NORTH.

TEMPS THROUGH THE EXTENDED LOOK SLIGHTLY COOLER THAN WHAT WE'VE SEEN
THE LAST FEW DAYS. BUT...850 MB TEMPS NEVER REALLY DROP MUCH BELOW
18C SO WE ARE STILL LOOKING AT NEAR TO JUST ABOVE SEASONAL NORMALS.

&&

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

&&

55

Hazardous weather outlook, Jun 20, 5:00 AM CDT, 10 hours 49 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
500 AM CDT FRI JUN 20 2014

TNZ005>011-023>034-056>066-075-077>080-093>095-211000-
STEWART-MONTGOMERY-ROBERTSON-SUMNER-MACON-CLAY-PICKETT-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-
500 AM CDT FRI JUN 20 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

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

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

31

In the hours before

Special weather statement, Jun 20, 2:05 PM CDT, 1 hour 44 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
205 PM CDT FRI JUN 20 2014

TNZ005-006-202000-
MONTGOMERY-STEWART-
205 PM CDT FRI JUN 20 2014

...SIGNIFICANT WEATHER ADVISORY FOR MONTGOMERY AND EASTERN STEWART
COUNTIES...

AT 203 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM HOPKINSVILLE TO
INDIAN MOUND...MOVING EAST AT 25 MPH.

SOME LOCATIONS IN THE PATH INCLUDE CUMBERLAND CITY...WOODLAWN...
PALMYRA...CLARKSVILLE AND CUNNINGHAM.

WINDS OF 40 TO 50 MPH ARE EXPECTED WITH THESE STORMS.

LAT...LON 3664 8712 3663 8713 3658 8713 3656 8714
      3654 8712 3646 8712 3644 8715 3642 8716
      3643 8717 3637 8726 3637 8779 3664 8768
      3665 8715

SHAMBURGER

Special weather statement, Jun 20, 2:17 PM CDT, 1 hour 32 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
217 PM CDT FRI JUN 20 2014

TNZ005-023-024-202000-
HOUSTON-HUMPHREYS-STEWART-
217 PM CDT FRI JUN 20 2014

...SIGNIFICANT WEATHER ADVISORY FOR HOUSTON...HUMPHREYS AND SOUTHERN
STEWART COUNTIES...

AT 217 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM DOVER TO
HUNTINGDON...MOVING EAST AT 30 MPH.

SOME LOCATIONS IN THE PATH INCLUDE HOUSTON COUNTY AIRPORT...TENNESSEE
RIDGE...ERIN...CUMBERLAND CITY...NEW JOHNSONVILLE...WAVERLY...
HURRICANE MILLS AND MCEWEN.

PEA SIZE HAIL...AND WINDS 40 TO 50 MPH ARE EXPECTED WITH THESE
STORMS.

LAT...LON 3647 8806 3647 8761 3634 8759 3634 8751
      3616 8756 3581 8787 3584 8797 3588 8794
      3593 8794 3594 8801 3598 8803 3616 8792
      3622 8796 3629 8795 3634 8797 3646 8807

SHAMBURGER

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 FRI JUN 20 2014

TNZ006-007-202030-
MONTGOMERY-ROBERTSON-
242 PM CDT FRI JUN 20 2014

...SIGNIFICANT WEATHER ADVISORY FOR MONTGOMERY AND ROBERTSON
COUNTIES...

AT 240 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM GUTHRIE TO
CLARKSVILLE...MOVING EAST AT 35 MPH.

SOME LOCATIONS IN THE PATH INCLUDE ADAMS...CEDAR HILL...
SPRINGFIELD...GREENBRIER...ORLINDA...RIDGETOP...CROSS PLAINS...BLACK
JACK AND WHITE HOUSE.

WINDS OF 40 TO 50 MPH ARE EXPECTED WITH THESE STORMS.

LAT...LON 3664 8656 3653 8664 3648 8665 3642 8670
      3641 8669 3642 8674 3635 8682 3639 8690
      3637 8698 3646 8712 3644 8715 3642 8716
      3643 8717 3640 8722 3640 8737 3665 8724
      3666 8659

SHAMBURGER

Special weather statement, Jun 20, 2:57 PM CDT, 52 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
257 PM CDT FRI JUN 20 2014

TNZ006-023>026-057-202100-
CHEATHAM-DICKSON-HICKMAN-HOUSTON-HUMPHREYS-MONTGOMERY-
257 PM CDT FRI JUN 20 2014

...SIGNIFICANT WEATHER ADVISORY FOR CHEATHAM...DICKSON...NORTHERN
HICKMAN...HOUSTON...HUMPHREYS AND MONTGOMERY COUNTIES...

AT 256 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM CLARKSVILLE TO NEW
JOHNSONVILLE...MOVING EAST AT 30 MPH.

SOME LOCATIONS IN THE PATH INCLUDE PALMYRA...WAVERLY...NEW
JOHNSONVILLE...HURRICANE MILLS...CUNNINGHAM...MCEWEN...SLAYDEN...
VANLEER...BUCKSNORT...CHARLOTTE...DICKSON...AND ASHLAND CITY.

PEA SIZE HAIL...AND WINDS 40 TO 50 MPH ARE EXPECTED WITH THESE
STORMS.

LAT...LON 3636 8767 3637 8759 3643 8760 3650 8754
      3651 8712 3646 8713 3637 8699 3638 8692
      3633 8692 3624 8698 3605 8719 3595 8720
      3583 8733 3584 8782 3581 8786 3584 8796
      3593 8793 3595 8802

SHAMBURGER

Special weather statement, Jun 20, 3:44 PM CDT, 5 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
344 PM CDT FRI JUN 20 2014

TNZ007-008-025>027-059-202130-
CHEATHAM-DAVIDSON-DICKSON-ROBERTSON-SUMNER-WILLIAMSON-
344 PM CDT FRI JUN 20 2014

...SIGNIFICANT WEATHER ADVISORY FOR CHEATHAM...DAVIDSON...DICKSON...
SOUTHERN ROBERTSON...SOUTHWESTERN SUMNER AND WILLIAMSON COUNTIES...

AT 338 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM SPRINGFIELD TO
FAIRVIEW...MOVING EAST AT 40 MPH.

SOME LOCATIONS IN THE PATH INCLUDE PLEASANT VIEW...KINGSTON
SPRINGS...ASHLAND CITY...SPRINGFIELD...FAIRVIEW...WHITE HOUSE...
MILLERSVILLE...JOELTON...NASHVILLE...BRENTWOOD...AND FRANKLIN.

PEA SIZE HAIL...AND WINDS AROUND 50 MPH ARE EXPECTED WITH THESE
STORMS.

LAT...LON 3632 8655 3623 8660 3607 8652 3609 8655
      3597 8662 3579 8661 3579 8666 3575 8668
      3575 8670 3571 8671 3570 8677 3578 8694
      3585 8721 3625 8719 3650 8712 3651 8653

SHAMBURGER

Special weather statement, Jun 20, 3:49 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
349 PM CDT FRI JUN 20 2014

TNZ024-025-056>058-202130-
DICKSON-HICKMAN-HUMPHREYS-LEWIS-PERRY-
349 PM CDT FRI JUN 20 2014

...SIGNIFICANT WEATHER ADVISORY FOR DICKSON...HICKMAN...HUMPHREYS...
LEWIS AND PERRY COUNTIES...

AT 348 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM FAIRVIEW TO
LINDEN...MOVING EAST AT 35 MPH.

SOME LOCATIONS IN THE PATH INCLUDE NUNNELLY...LYLES...BON AQUA...
PINEWOOD...WHITE BLUFF...BURNS...LOBELVILLE...LINDEN...
PLEASANTVILLE...CENTERVILLE...PRIMM SPRINGS AND HOHENWALD.

PEA SIZE HAIL...AND WINDS 40 TO 50 MPH ARE EXPECTED WITH THESE
STORMS.

LAT...LON 3584 8796 3631 8715 3627 8716 3625 8719
      3624 8717 3621 8719 3618 8715 3597 8721
      3575 8723 3569 8727 3567 8732 3560 8736
      3550 8727 3544 8730 3546 8745 3540 8757
      3544 8764 3547 8765 3548 8772 3563 8804

SHAMBURGER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 2:05 PM CDT	Special Weather Statement	OHX	Montgomery	55 min
Jun 20, 2:17 PM CDT	Special Weather Statement	OHX	Houston, Humphreys, Stewart	43 min
Jun 20, 2:42 PM CDT	Special Weather Statement	OHX	Robertson	48 min
Jun 20, 2:57 PM CDT	Special Weather Statement	OHX	Cheatham, Dickson, Houston, Humphreys, Montgomery	63 min
Jun 20, 3:12 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Montgomery	33 min
Jun 20, 3:44 PM CDT	Special Weather Statement	OHX	Cheatham, Davidson, Williamson	46 min
Jun 20, 3:53 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Robertson, Sumner	37 min
Jun 20, 4:16 PM CDT	Special Weather Statement	OHX	Davidson, Rutherford, Sumner, Trousdale, Williamson, Wilson	59 min
Jun 20, 4:57 PM CDT	Special Weather Statement	OHX	DeKalb, Jackson, Smith	48 min
Jun 20, 5:15 PM CDT	Special Weather Statement	OHX	Cannon	45 min
Jun 20, 5:47 PM CDT	Special Weather Statement	OHX	DeKalb, Putnam	43 min
Jun 20, 5:57 PM CDT	Special Weather Statement	OHX	Van Buren, Warren, White	48 min
Jun 20, 6:28 PM CDT	Special Weather Statement	OHX	Cumberland, Putnam, White	47 min

Nearby

Special Weather Statements in Tennessee, 2014 Every special weather statement in 2014

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.