River Flood Advisory 73, NWS Nashville, TN

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
313 PM CDT THU JUL 11 2013

DISCUSSION...
RADAR SHOWING CONVECTION AND THE PLACEMENT OF THE FRONTAL BOUNDARY
THIS AFTERNOON. THE BOUNDARY APPEARS TO BE MOVING THROUGH
NASHVILLE NOW WITH A LINE OF BROKEN CONVECTION ALONG IT. THE
BOUNDARY IS EXPECTED TO MOVE SOUTHEASTWARD AND THROUGH THE MID
STATE TONIGHT. MAY KEEP LOW POPS GOING INTO THIS
EVENING...PARTICULARLY FOR EASTERN AND SOUTHERN AREAS. WILL ALSO
ADHERE TO UPCOMING RADAR TRENDS PRIOR TO THE 4PM ISSUANCE. A LATE
AFTERNOON PERIOD WILL LIKELY BE INCLUDED IN THE ZONES.

OTW...DRIER AIR TO FILL IN BEHIND THE FROPA. STILL ENOUGH LOW LEVEL
MOISTURE FOR SOME PATCHY FOG LATE TONIGHT ACROSS OUR PLATEAU. THE
DRIER AND COOLER AIR WILL WIN OUT BY TOMORROW HOWEVER AND WILL LAST
INTO SATURDAY.

FOR THE NEAR TERM TEMPS...BELOW NORMAL VALUES IN PLACE AS A COOL
DOME OF HIGH PRESSURE PREVAILS TO OUR NORTH AND ADVECTS RELATIVELY
COOLER AND DRIER AIR ACROSS OUR AREA. WILL GO SLIGHTLY ABOVE MAV
MINS AND SLIGHTLY BELOW MAV HIGHS.

IN THE EXT FCST...JUST WHEN YOU THINK WE HAVE TRANSITIONED INTO A
MORE TYPICAL LIKE SUMMER PATTERN...ANOTHER WEIRD CHANGE IS COMING.
THE WEAK UPPER WAVE IN ASSOCIATION WITH TODAY'S FROPA WILL MAKE IT AS
WAR EAST AS WV. THEN...THE MODELS ARE IN AGREEMENT WITH THE SYSTEM
SLOWING DOWN...STALLING AND MOVING BACK TO THE WEST. THE TROUGH
INTENSITY WILL BE WEAK SO AS THE AXIS APPROACHES ON
SATURDAY...MOSTLY DRY WEATHER IS EXPECTED. HOWEVER...ONCE THE AXIS
MOVES TO OUR WEST...THE MULTI-LAYERED FLOW BECOMES MORE FAVORABLE
FOR MOISTURE RETURN AND THUS...POPS WILL INCREASE A LITTLE FOR
SUNDAY AND MONDAY.

THE RETROGRADE UPPER WAVE WILL MAKE IT AS FAR WEST AS THE PLAINS
BEFORE WEAKENING AND FALLING APART. THEN...A STRENGTHENING UPPER
HIGH WILL BUILD OVER THE MID ATLANTIC AND EXPAND WESTWARD. THIS WILL
CAUSE OUR TEMPS TO WARM AND CONVECTION PROBABILITIES TO BECOME 20
PERCENT AT BEST. IT APPEARS THAT THE CENTER OF THE UPPER RIDGE WILL
CAMP OUT NORTH OF TN AND THUS...SLIGHTLY POPS FOR THE TAIL END OF
THE EXTENDED WILL BE INCLUDED.

FOR THE EXT TEMPS...THE BULK OF THE HEAT LOOKS LIKE IT WILL EFFECT
THE MID ATLANTIC AND AREAS NORTH OF TN. BUT...WE WILL STILL SEE OUR
TEMPS CLIMB BACK INTO THE LOW TO MID 90S NEXT WEEK...LOW TEMPS
GENERALLY IN THE LOWER 70S.

.PRELIMINARY POINT TEMPS/POPS...
NASHVILLE      66  85  64  88 /  05  05  05  10
CLARKSVILLE    63  85  62  87 /  05  05  05  05
CROSSVILLE     64  80  62  83 /  20  05  05  20
COLUMBIA       66  86  64  89 /  10  05  05  10
LAWRENCEBURG   66  86  63  89 /  10  05  05  10
WAVERLY        63  85  62  88 /  05  05  05  10

&&

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

21

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
147 PM CDT THU JUL 11 2013

TNZ005>011-022>034-056>066-075-077>080-093>095-121900-
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-
147 PM CDT THU JUL 11 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SCATTERED SHOWERS AND THUNDERSTORMS ARE DEVELOPING ALONG AN
APPROACHING COLD FRONT LOCATED NEAR THE KENTUCKY/TENNESSEE BORDER.
STORMS ALONG AND AHEAD OF THIS FRONT WILL BE CAPABLE OF PRODUCING
STRONG WIND GUSTS...BRIEF BUT TORRENTIAL RAINFALL...AND FREQUENT
CLOUD TO GROUND LIGHTNING. WITH ANY HEAVY THUNDERSTORM...LOCALIZED
MINOR FLOODING MAY OCCUR AS WELL.

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

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER CALL TO ACTION STATEMENT...

EVEN THOUGH ANY THUNDERSTORMS ARE EXPECTED TO BE BRIEF AND
FAIRLY 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

AL

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SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
327 PM CDT THU JUL 11 2013

TNZ027-028-059-062-112100-
DAVIDSON-RUTHERFORD-WILLIAMSON-WILSON-
327 PM CDT THU JUL 11 2013

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

AT 323 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A STRONG THUNDERSTORM NEAR HERMITAGE...MOVING SOUTH AT 20 MPH.

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

WINDS 40 TO 50 MPH ARE EXPECTED WITH THIS STORM ALONG WITH VERY
HEAVY RAINFALL AND FREQUENT CLOUD TO GROUND LIGHTNING.

RAINFALL RATES OF UP TO AN INCH PER HOUR ARE POSSIBLE WITH THIS
STORM. IT IS ALSO MOVING OVER AN AREA THAT HAS EXPERIENCED EXTENSIVE
RAIN FROM PREVIOUS DAYS SO SOME URBAN AND SMALL STREAM FLOODING WILL
BE POSSIBLE.

THIS STORM IS MOVING OVER THE PERCY PRIEST LAKE AREA. THOSE WHO ARE
OUT NEAR THE LAKE OR BOATING ON THE LAKE SHOULD SEEK SHELTER
IMMEDIATELY OR GET OFF THE WATER AS THIS STORM WILL BE CAPABLE OF
PRODUCING HAZARDOUS GUSTY WINDS AND LIGHTNING THAT WILL EFFECT THOSE
IN OR AROUND WATER.

LAT...LON 3589 8618 3574 8670 3609 8671 3614 8655
      3618 8641

TB12

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
341 PM CDT THU JUL 11 2013

TNZ059>062-075-112115-
BEDFORD-MARSHALL-MAURY-RUTHERFORD-WILLIAMSON-
341 PM CDT THU JUL 11 2013

...SIGNIFICANT WEATHER ADVISORY FOR BEDFORD...MARSHALL...MAURY...
RUTHERFORD AND WILLIAMSON COUNTIES...

AT 337 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A STRONG THUNDERSTORM NEAR FRANKLIN...MOVING SOUTHEAST AT 15 MPH.

SOME LOCATIONS IN THE PATH INCLUDE TRIUNE AND EAGLEVILLE.

WINDS AROUND 40 MPH ARE EXPECTED WITH THIS STORM.

BRIEF BUT HEAVY RAINFALL CAN BE EXPECTED WITH THIS STORM AS WELL.
DUAL POL RADAR ESTIMATES RAINFALL RATES OF UP TO THREE QUARTERS OF
AN INCH PER HOUR POSSIBLE.

OCCASIONAL CLOUD TO GROUND LIGHTNING WILL ALSO BE POSSIBLE.

LAT...LON 3568 8642 3551 8680 3583 8691 3593 8672

TB12

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
517 PM CDT THU JUL 11 2013

TNZ062-075-077-112300-
BEDFORD-COFFEE-RUTHERFORD-
517 PM CDT THU JUL 11 2013

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN BEDFORD...WESTERN COFFEE
AND SOUTHEASTERN RUTHERFORD COUNTIES...

AT 514 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A STRONG THUNDERSTORM 13 MILES SOUTH OF MURFREESBORO...MOVING
SOUTHEAST AT 15 MPH.

SOME LOCATIONS IN THE PATH INCLUDE FOSTERVILLE...CHRISTIANA...BELL
BUCKLE...BEECHGROVE...WARTRACE AND NORMANDY.

PEA SIZE HAIL...AND WINDS AROUND 40 MPH ARE EXPECTED WITH THIS
STORM.

LAT...LON 3536 8636 3572 8643 3577 8627 3573 8620
      3571 8621 3567 8615 3548 8599 3540 8626
      3541 8628 3538 8631 3536 8635

SHAMBURGER

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
531 PM CDT THU JUL 11 2013

TNZ094-095-112300-
GILES-LAWRENCE-
531 PM CDT THU JUL 11 2013

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN GILES AND SOUTHERN
LAWRENCE COUNTIES...

AT 528 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A STRONG THUNDERSTORM NEAR LEXINGTON...MOVING SOUTHEAST AT 10 MPH.

SOME LOCATIONS IN THE PATH INCLUDE FIVE POINTS...LORETTO...AND UNION
HILL.

FREQUENT LIGHTNING...BRIEF TORRENTIAL RAINFALL...PEA SIZE HAIL...AND
WINDS AROUND 40 MPH ARE EXPECTED WITH THIS STORM.

LAT...LON 3500 8723 3500 8751 3505 8754 3518 8725
      3500 8707 3499 8708 3499 8722

SHAMBURGER