Alert archive / Tennessee / Special Weather Statements in 2012

Special Weather Statement, NWS Nashville, TN

July 8, 20124 counties in Tennessee

NWS Nashville, TN issued this special weather statement at Jul 8, 2012, 8:44 PM CDT for 4 counties in Tennessee. It was in force for 61 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: Jul 8, 2012, 8:44 PM CDT (01:44 UTC)
Expired: Jul 8, 2012, 9:45 PM CDT
In force: 61 min
Issued by: NWS Nashville, TN

Counties Houston County, TN, Montgomery County, TN, Robertson County, TN, Stewart County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 1.7 hours before the alert went out and 107 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: 2450 J/kg
Mixed-layer CIN: -68 J/kg
Mixed-layer LCL: 1333 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: 30 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.3

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 Jul 8, 6:47 PM CDT, 1 hour 57 minutes earlier.

Area forecast discussion, Jul 8, 6:47 PM CDT, 1 hour 57 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE NASHVILLE TN
647 PM CDT SUN JUL 8 2012

.UPDATE...FOR 00Z AVIATION DISCUSSION.
&&

.AVIATION...00Z AVIATION DISCUSSION.
PULSE TYPE SHWRS/TSTMS WILL CONTINUE THRU 09/03Z...WITH TEMPO MVFR/IFR
VSBYS/CEILINGS CONDITIONS...WITH SHWRS/TSTMS BECOMING MORE NUMEROUS
AFTER 09/16Z-09/24Z AS A COLD FRONT APPROACHES THE MID STATE. EXPECT
AT LEAST PREVAILING MVFR CEILINGS DURING THE 09/16Z-09/24Z TIME FRAME.
&&

.PREV DISCUSSION.../ISSUED 502 PM CDT SUN JUL 8 2012/

DISCUSSION...

SHORT TERM...EXPECT CURRENT ROUND OF STORMS TO WEAKEN AS DAYLIGHT
DIMINISHES. WILL MOST LIKELY SEE SOME LINGERING ACTIVITY OVERNIGHT,
SHOWERS AND THUNDERSTORM CHANCES WILL REAPPEAR MONDAY AS THE MUCH
ANTICIPATED COLD FRONT CURRENTLY STRETCHING FROM THE OHIO VALLEY TO
ARKANSAS INCHES CLOSER TO THE MID-STATE. SOUNDINGS ARE SATURATED WITH
PWAT VALUES STILL TOPPING OUT AROUND 2 INCHES THROUGH MONDAY AND
TUESDAY AS THE FRONT LINGERS AROUND OUR AREA. TEMPS ARE EXPECTED TO
BE MUCH COOLER THAN THE PREVIOUS WEEK, WITH HIGH TEMPERATURES
REACHING THE LOW 90S MONDAY AND AS THE FRONT SETTLES INTO THE AREA
OVERNIGHT MONDAY AND INTO TUESDAY TEMPERATURES SHOULD SETTLE IN THE
MID TO HIGH 80S ON TUESDAY. A CHANCE OF SHOWERS AND THUNDERSTORMS
WILL CONTINUE OVERNIGHT WEDNESDAY NIGHT.

LONG TERM...WEDNESDAY THE FRONTAL BOUNDARY IS EXPECTED TO BE POSITIONED
OVER THE SOUTHEASTERN PORTION OF OUR AREA BRINGING A DECREASE IN
POPS IN THE NORTHWEST. AS THE FRONT MOVES OFF TO THE SOUTH, CONDITIONS
LOOK TO BE DRIER IN THE NORTHWEST ON THURSDAY. HOWEVER PLENTY OF
MOISTURE REMAINS MAINLY OVER THE EASTERN HALF OF THE AREA AND A
SERIES OF UPPER LEVEL SHORTWAVES ALONG WITH DAYTIME INSTABILITY
KEEP A CHANCE OF PRECIPITATION IN THE FORECAST THROUGHOUT THE
WEEKEND....WITH THE SOUTHEASTERN PORTIONS OF OUR AREA SEEING THE
HIGHEST RAINFALL AMOUNTS. HIGH TEMPERATURES ARE EXPECTED TO REMAIN
IN THE MID 80S FOR THE REMAINDER OF THE EXTENDED....WITH HIGHS IN
THE UPPER 70S FOR THE PLATEAU ON WEDS AND THURS.

&&

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

31

Hazardous weather outlook, Jul 8, 5:01 AM CDT, 15 hours 43 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
501 AM CDT SUN JUL 8 2012

TNZ005>011-022>034-056>066-075-077>080-093>095-091015-
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-
501 AM CDT SUN JUL 8 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE.

.DAY ONE...TODAY AND TONIGHT

SCATTERED STRONG TO LOCALLY SEVERE THUNDERSTORMS ARE EXPECTED
ACROSS MIDDLE TENNESSEE SUNDAY INTO SUNDAY NIGHT. THE HIGHEST
LIKELIHOOD FOR STRONG TO SEVERE STORMS WILL BE ALONG AND WEST OF
THE I-65 CORRIDOR. GUSTY WINDS...SMALL HAIL...FREQUENT
LIGHTNING...AND BRIEF HEAVY RAINFALL WILL BE POSSIBLE IN THE
STRONGEST STORMS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

SCATTERED THUNDERSTORMS ARE EXPECTED ACROSS MIDDLE TENNESSEE
EACH DAY FROM MONDAY THROUGH SATURDAY. SOME STORMS MAY BE STRONG
AND CONTAIN GUSTY WINDS...SMALL HAIL...FREQUENT LIGHTNING...AND
BRIEF HEAVY RAINFALL.

.SPOTTER INFORMATION STATEMENT...

EVEN THOUGH ANY SEVERE THUNDERSTORMS ARE EXPECTED TO BE BRIEF AND
ISOLATED, SPOTTERS ARE ENCOURAGED TO CLOSELY MONITOR WEATHER
CONDITIONS AND BE PREPARED TO CALL IN ANYTHING REACHING REPORTING
CRITERIA.

SPOTTER THUNDERSTORM REPORTING CRITERIA...
TORNADO
FUNNEL CLOUD
FLOODING
HAIL >= 1/2 INCH
WINDS > 50 MPH (MEASURED)
STRUCTURAL DAMAGE
TREES OR POWER LINES DOWN

55

In the hours before

Special weather statement, Jul 8, 7:53 PM CDT, 51 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
753 PM CDT SUN JUL 8 2012

TNZ010-011-031-033-034-090115-
CLAY-FENTRESS-JACKSON-OVERTON-PICKETT-
753 PM CDT SUN JUL 8 2012

...SIGNIFICANT WEATHER ADVISORY FOR CLAY...FENTRESS...JACKSON...
OVERTON AND PICKETT COUNTIES...

AT 749 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
CLUSTER OF STRONG THUNDERSTORMS NEAR LIVINGSTON...CELINA...AND
BYRDSTOWN...MOVING NORTHEAST AT 5 MPH.

SMALL HAIL AND WINDS 40 TO 50 MPH ARE EXPECTED WITH THIS STORM.
ALSO...THESE STORMS HAVE A HISTORY OF PRODUCING DANGEROUS CLOUD TO
GROUND LIGHTNING. PLEASE STAY INDOORS. IF THUNDER ROARS...GO INDOORS.

LAT...LON 3660 8478 3614 8511 3650 8581 3662 8579

TB12

Local storm report, Jul 8, 7:59 PM CDT, 45 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
759 PM CDT SUN JUL 08 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0743 PM     TSTM WND DMG     LIVINGSTON              36.39N 85.33W
07/08/2012                   OVERTON            TN   TRAINED SPOTTER

            TWO LARGE TREES WERE DOWNED AND BLOCKING WINDLE COMMUNITY
            ROAD NEAR LIVINGSTON.

&&

31

Local storm report, Jul 8, 8:00 PM CDT, 44 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE NASHVILLE TN
800 PM CDT SUN JUL 08 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0330 PM     TSTM WND DMG     5 NNW CENTERVILLE       35.86N 87.48W
07/08/2012                   HICKMAN            TN   TRAINED SPOTTER

            SEVERAL TREES DOWNED ON OLD HIGHWAY 48 IN PINEWOOD.

0340 PM     TSTM WND DMG     13 N CENTERVILLE        35.98N 87.45W
07/08/2012                   HICKMAN            TN   EMERGENCY MNGR

            EMA REPORTS TREE DOWN ACROSS HWY 48 ABOUT 12-15 MILES
            NORTH OF CENTERVILLE.

0420 PM     TSTM WND DMG     3 N NASHVILLE           36.22N 86.78W
07/08/2012                   DAVIDSON           TN   PUBLIC

            PUBLIC REPORT OF 2 TREES DOWN ON MAPLEWOOD TRACE NEAR
            BRILEY PARKWAY AND I65.

0515 PM     LIGHTNING        5 N FRANKLIN            36.00N 86.84W
07/08/2012                   WILLIAMSON         TN   911 CALL CENTER

            911 CENTER REPORTED 3 LIGHTNING STRIKE REPORTS. ONE
            RESULTING IN A TRANSFORMER BLOWING.

0516 PM     TSTM WND DMG     NASHVILLE               36.17N 86.78W
07/08/2012                   DAVIDSON           TN   EMERGENCY MNGR

            AT 201 GRIZZARD AVENUE...A TREE KNOCKED DOWN WIRES...AND
            AT 401 SPRINGVIEW DRIVE...A TREE FELL ONTO POWER LINES.

0520 PM     TSTM WND DMG     5 N BRENTWOOD           36.07N 86.79W
07/08/2012                   DAVIDSON           TN   EMERGENCY MNGR

            SEVERAL TREES...ALONG WITH POWER LINES...AND TRAFFIC
            WIRES DOWNED IN SOUTHERN DAVIDSON COUNTY.

0525 PM     TSTM WND DMG     CARTHAGE                36.26N 85.94W
07/08/2012                   SMITH              TN   LAW ENFORCEMENT

            TREES AND POWER LINES DOWNED ACROSS THE COUNTY.

0528 PM     TSTM WND DMG     NASHVILLE               36.17N 86.78W
07/08/2012                   DAVIDSON           TN   LAW ENFORCEMENT

            NUMEROUS TRAFFIC LIGHT WIRES WERE DOWNED AND POWER OUT AT
            INTERSECTIONS IN WEST NASHVILLE.

0546 PM     TSTM WND DMG     4 NW WATERTOWN          36.14N 86.19W
07/08/2012                   WILSON             TN   EMERGENCY MNGR

            TREE DOWN REPORTED AT LINWOOD RD AND ROBERTS LN. 3 MILES
            NW OF WATERTOWN.

0551 PM     TSTM WND DMG     5 E LEBANON             36.21N 86.23W
07/08/2012                   WILSON             TN   EMERGENCY MNGR

            MULTIPLE TREE DOWN REPORTS AT 4200 AND 4600 TROUSDALE
            FERRY RD. ANOTHER REPORT ON LINWOOD RD 5 MILES E OF
            LEBANON.

0555 PM     LIGHTNING        GAINESBORO              36.36N 85.65W
07/08/2012                   JACKSON            TN   911 CALL CENTER

            FIFTY YEAR OLD FEMALE STRUCK BY LIGHTNING ON ANDERSON
            VILLAGE LANE.CONDITION OF PERSON UNKNOWN AT THIS TIME.

0600 PM     TSTM WND DMG     MURFREESBORO            35.85N 86.39W
07/08/2012                   RUTHERFORD         TN   LAW ENFORCEMENT

            TREES AND POWER LINES DOWNED ACROSS EASTERN PORTIONS OF
            THE COUNTY.

0600 PM     HAIL             5 NE MURFREESBORO       35.90N 86.33W
07/08/2012  E0.88 INCH       RUTHERFORD         TN   EMERGENCY MNGR

            NICKEL SIZE HAIL REPORTED IN LASCASSAS.

0601 PM     TSTM WND DMG     3 E LEBANON             36.21N 86.27W
07/08/2012                   WILSON             TN   EMERGENCY MNGR

            TREE DOWN AT 2340 BLUEBIRD RD. 3 MILES E OF LEBANON.

0700 PM     TSTM WND DMG     LAFAYETTE               36.52N 86.03W
07/08/2012                   MACON              TN   LAW ENFORCEMENT

            TREES DOWNED ACROSS THE COUNTY.

0700 PM     LIGHTNING        6 N LAFAYETTE           36.61N 86.03W
07/08/2012                   MACON              TN   LAW ENFORCEMENT

            LIGHTNING HIT A TREE THAT CAUSED A FIRE IN A FIELD NEAR
            UNDERWOOD ROAD.

0708 PM     TSTM WND DMG     CELINA                  36.55N 85.50W
07/08/2012                   CLAY               TN   LAW ENFORCEMENT

            A FEW TREES WERE DOWNED ON ROADWAYS ACROSS THE COUNTY.

0743 PM     TSTM WND DMG     LIVINGSTON              36.39N 85.33W
07/08/2012                   OVERTON            TN   TRAINED SPOTTER

            TWO LARGE TREES WERE DOWNED AND BLOCKING WINDLE COMMUNITY
            ROAD NEAR LIVINGSTON.

&&

31

Local storm report, Jul 8, 8:32 PM CDT, 12 minutes before

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Local storm report, Jul 8, 8:33 PM CDT, 11 minutes before

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Special weather statement, Jul 8, 8:44 PM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 8, 7:46 PM CDT	Severe Thunderstorm Warning	OHX	Robertson	29 min
Jul 8, 7:53 PM CDT	Special Weather Statement	OHX	Clay, Overton, Pickett	22 min
Jul 8, 8:09 PM CDT	Severe Thunderstorm Warning	OHX	Robertson	29 min
Jul 8, 8:12 PM CDT	Severe Thunderstorm Warning	OHX	Montgomery	21 min
Jul 8, 9:47 PM CDT	Areal Flood Advisory	OHX	Cheatham, Montgomery	3 hr
Jul 8, 11:32 PM CDT	Areal Flood Advisory	OHX	Davidson, Rutherford, Sumner, Trousdale, Williamson, Wilson	3 hr

Nearby

Special Weather Statements in Tennessee, 2012 Every special weather statement 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.