Special Weather Statement, NWS Melbourne, FL

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MELBOURNE FL
225 PM EDT TUE JUL 3 2012

.DISCUSSION...

REMAINDER OF THIS AFTERNOON THROUGH TONIGHT...EAST COAST SEA BREEZE
JUST STARTING TO MOVE WEST TOWARD I-95. AS EXPECTED...INITIAL STORMS
POPPED ALONG SEA/LAKE BREEZE INTERFACE ON THE NE SIDE OF LAKE OKEE.
WEST COAST SEA BREEZE PUSHING INLAND AT A DECENT CLIP AND IS MORE
CONVECTIVELY ACTIVE THAN THE ATLANTIC BREEZE. WCSB SHOULD CRUISE
EASTWARD INTO THE CENTRAL CWA THROUGH LATE AFTERNOON...WITH A LATE
COLLISION EXPECTED FROM INTERIOR VOLUSIA SOUTH TO SANFORD...AND THEN
INTO THE EASTERN SIDE OF THE GREATER ORLANDO AREA TO LAKE KISSIMMEE.
BEST CHANCE FOR STORMS WILL BE RIGHT WHERE THE COLLISION OCCURS AS
LOCAL STEERING FLOW IS NON-EXISTENT. WILL RUN WITH PRE-FIRST PERIOD
FOR ACTIVITY THAT FORMS/CONTINUES THROUGH SUNSET...BUT WILL ALSO
NUDGE EARLY EVENING POPS UP AND EXPAND AREA A LITTLE TO THE EAST
GIVEN EXPECTED LOCATION OF ECSB/WCSB COLLISION.

PREVIOUS DISCUSSIONS...

INDEPENDENCE DAY...WEAK RIDGE AXIS WILL DRIFT NORTHWARD AND EXTEND
ACROSS THE CENTRAL PENINSULA. LOW LEVEL FLOW WILL BE RELATIVELY
LIGHT WITH SEA BREEZE BOUNDARIES DEVELOPING AND DRIFTING INLAND FROM
BOTH COASTS. SUFFICIENT MOISTURE AND INSTABILITY FOR A FEW STORMS TO
FORM ALONG THE SEA BREEZES EARLY AFTERNOON...THEN STORM COVERAGE
INCREASING TO SCATTERED DURING THE LATE AFTERNOON AS THE BOUNDARIES
COLLIDE OVER THE INTERIOR SECTIONS.

A FEW STORMS LINGERING INTO THE EARLY EVENING HOURS BUT SHOULD
DIMINISH ACROSS MOST LOCATIONS IN TIME FOR THE EVENING FIREWORKS.
HIGH TEMPS REACHING MID 90S INLAND AND LOWER 90S COAST...EXCEPT
UPPER 80S/NEAR 90 TREASURE COAST WITH EARLIER SEA BREEZE ONSET.
OVERNIGHT MINS GENERALLY IN THE MID 70S.

THU-MON...LOW LEVEL RIDGE AXIS WILL DRIFT NORTHWARD LATE WEEK INTO
THE WEEKEND. THIS WILL PUT EC FL IN SE-ESE FLOW WITH PASSAGE OF WEAK
EASTERLY WAVES ACROSS SOUTHERN SECTIONS HELPING BOOST PRECIPITABLE
WATER VALUES. RIDGE ALOFT WILL STRENGTHEN OVER PLAINS/MIDWEST STATES
BUT EC FL WILL BE LOCATED IN AREA OF WEAK TROFFING ALOFT TO THE EAST
OF THE RIDGE MOST OF THE PERIOD. POPS WILL BE IN SCATTERED CATEGORY
ALL AREAS DURING THIS TIME FRAME BUT WITH VALUES A LITTLE HIGHER IN
THE SOUTH AND WESTERN INTERIOR GIVEN DEEPER MOISTURE SOUTH AND
POSITION OF RIDGE AXIS FAVORING SEA BREEZE COLLISIONS OCCURRING WELL
INLAND. MAX TEMPS GENERALLY IN THE MID 90S INTERIOR AND LOWER 90S AT
THE COAST.

&&

.AVIATION... BEST CHC FOR TS INVOF COASTAL SITES (EXCLUDING DAB)
WILL BE 17Z-21Z...WITH INITIAL ONSET EXPECTED NEAR SUA AND
PROPAGATING N TWD MLB. BETTER CHANCE LATER ON FROM ABOUT 19Z-23Z
OVER THE INTERIOR AND POSSIBLY NEAR DAB AS WELL. IFR VSBYS IN +RA
SHOULD ANY CELL FORM DIRECTLY OVER LCL AIRPORTS AS MOTION WILL BE
QSTNRY. LCL G30KT+ ALSO POSSIBLE...THOUGH CELLS WILL DISSIPATE RIGHT
WHERE THEY DEVELOP.

&&

.MARINE...ATLANTIC RIDGE AXIS OVER SOUTH FL WILL SLOWLY LIFT NORTH
INTO THE CENTRAL PENINSULA FORM MID TO LATE WEEK. EXPECT A GENERALLY
LIGHT TO GENTLE BREEZE WITH A MODERATE ONSHORE BREEZE NEAR THE COAST
EACH AFTERNOON ASCD WITH SEA BREEZE CIRCULATION. COULD POSSIBLY SEE
WINDS KICK UP DURING NOCTURNAL INSTABILITY CYCLE AS WELL. BUT
OVERALL WIND AND SEAS WILL REMAIN QUITE FAVORABLE FOR BOATING THIS
WEEK.

&&

.PRELIMINARY POINT TEMPS/POPS...
DAB  73  92  73  92 /  10  30  10  30
MCO  73  93  74  94 /  10  30  20  40
MLB  73  91  75  90 /  10  20  10  20
VRB  73  90  73  89 /  10  20  10  20
LEE  75  93  75  94 /  20  30  20  40
SFB  75  94  75  94 /  10  30  20  40
ORL  76  94  76  94 /  10  30  20  40
FPR  72  90  73  89 /  10  20  10  20

&&

.MLB WATCHES/WARNINGS/ADVISORIES...
FL...NONE.
AM...NONE.
&&

SHORT TERM...CRISTALDI
LONG TERM....WIMMER
AVIATION...CRISTALDI

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MELBOURNE FL
1133 AM EDT TUE JUL 3 2012

AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141-
144-147-040000-
COASTAL WATERS FROM FLAGLER BEACH TO VOLUSIA BREVARD COUNTY LINE
OUT 20 NM-
COASTAL WATERS FROM VOLUSIA BREVARD COUNTY LINE TO SEBASTIAN
INLET OUT 20 NM-
COASTAL WATERS FROM SEBASTIAN INLET TO JUPITER INLET OUT 20 NM-
WATERS FROM FLAGLER BEACH TO VOLUSIA BREVARD COUNTY LINE 20 TO
60 NM OFFSHORE-
WATERS FROM VOLUSIA BREVARD COUNTY LINE TO SEBASTIAN INLET 20 TO
60 NM OFFSHORE-
WATERS FROM SEBASTIAN INLET TO JUPITER INLET 20 TO 60 NM OFFSHORE-
INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD-
OSCEOLA-INDIAN RIVER-OKEECHOBEE-ST. LUCIE-MARTIN-COASTAL VOLUSIA-
SOUTHERN LAKE-NORTHERN BREVARD-
1133 AM EDT TUE JUL 3 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

.THUNDERSTORM IMPACT...
SHOWERS AND THUNDERSTORMS WILL DEVELOP ALONG THE EAST COAST SEA
BREEZE JUST INLAND FROM THE COAST MID AFTERNOON WITH COVERAGE
INCREASING ACROSS THE INTERIOR AND ALONG THE COAST NORTH OF CAPE
CANAVERAL THROUGH THE LATE AFTERNOON. THE HIGHEST COVERAGE IS
EXPECTED TO BE PRIMARILY WEST OF THE ORLANDO METRO AND ALONG THE
KISSIMMEE RIVER AND WEST OF INTERSTATE 95 IN COASTAL VOLUSIA
COUNTY FROM LATE AFTERNOON THROUGH THE EVENING AS SEA BREEZES
COLLIDE WITH OUTFLOW BOUNDARIES. ANY STORMS THAT DEVELOP WILL BE
CAPABLE OF PRODUCING WIND GUSTS OVER 35 MPH AND SMALL HAIL.
THE STEERING WINDFLOW PATTERN REMAINS WEAK WHICH WILL RESULT IN A
SLOW AND ERRATIC STORM MOTION. STORMS THAT REMAIN IN ONE LOCATION
FOR A LONG PERIOD OF TIME ARE CAPABLE OF PRODUCING LARGE AMOUNTS
OF RAIN RESULTING IN THE PONDING OF WATER ON ROADWAYS AND
LOCALIZED MINOR FLOODING OF LOW LYING AREAS.

.FLOOD IMPACT...
SLOW MOVING STORMS WILL HAVE THE CAPABILITY OF PRODUCING TEMPORARY
EXCESSIVE ACCUMULATIONS OF RAIN WATER ON ROADS...HIGHWAYS...
BENEATH BRIDGES AND IN LOW LYING AREAS. WHEN DRIVING AND
ENCOUNTERING STANDING WATER ON THE ROADWAYS REMEMBER TO SLOW
DOWN AND TO INCREASE THE FOLLOWING DISTANCE BETWEEN YOUR CAR AND
OTHER CARS.

.RIP CURRENT IMPACT...
AN ELEVATED RIP CURRENT RISK WILL EXIST AT AREA BEACHES THIS
AFTERNOON AND EVENING DUE TO TIDAL CONDITIONS WITH THE FULL MOON.
REMEMBER TO SWIM ONLY WITHIN SIGHT OF A LIFEGUARD...AND NEVER SWIM
ALONE.

.MARINE THUNDERSTORM GUST IMPACT...
SHOWERS AND STORMS WILL DEVELOP PRIMARILY ACROSS INTERIOR LOCATIONS
THIS AFTERNOON AFFECTING INLAND LAKES AND WATERWAYS. ANY STORMS
THAT DEVELOP WILL MOVE LITTLE...AND BE CAPABLE OF PRODUCING WIND
GUSTS TO 34 KNOTS AND FREQUENT CLOUD TO WATER STRIKES.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.
SCATTERED LIGHTNING STORMS ARE EXPECTED EACH AFTERNOON ACROSS EAST
CENTRAL FLORIDA. THE HIGHEST COVERAGE WILL BE ACROSS THE INTERIOR
WITH THE COLLISION OF THE EAST AND WEST COAST SEA BREEZES IN THE
EVENING.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY.

MOSES/UPDATE WIMMER

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MELBOURNE FL
253 PM EDT TUE JUL 03 2012

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

0220 PM     HAIL             4 W PORT SAINT LUCIE    27.28N 80.42W
07/03/2012  E0.50 INCH       ST. LUCIE          FL   EMERGENCY MNGR

            SAINT LUCIE EMERGENCY MGMT. REPORTED MARBLE SIZE HAIL AT
            I95 AND GATLIN BLVD.

&&

FXD

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
328 PM EDT TUE JUL 3 2012

FLZ059-032015-
ST. LUCIE-
328 PM EDT TUE JUL 3 2012

...A SIGNIFICANT WEATHER ADVISORY IS IN EFFECT FOR SMALL HAIL OVER
NORTHERN ST. LUCIE COUNTY...

* UNTIL 415 PM EDT.

AT 325 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG STORM CAPABLE OF PRODUCING UP TO HALF INCH SIZED HAIL 8 MILES
WEST OF FORT PIERCE...DRIFTING SOUTHWEST AT 5 MPH.

TORRENTIAL RAINFALL BETWEEN 2 AND 3 INCHES IN A 60 TO 90 MINUTE
PERIOD...AND FREQUENT LIGHTNING CAN ALSO BE EXPECTED. THIS WILL
CAUSE TEMPORARY PONDING ON SOME ROADS AND MINOR FLOODING OF POOR
DRAINAGE AREAS. MOTORISTS SHOULD SLOW DOWN IN HEAVY RAINFALL TO
REDUCE THE RISK OF HYDROPLANING AND LEAVE SAFE DISTANCE BETWEEN
OTHER VEHICLES.

STATE LAW REQUIRES HEADLIGHTS TO BE TURNED ON WHEN WINDSHIELD WIPERS
ARE IN USE.

LAT...LON 2734 8042 2740 8060 2756 8052 2756 8049
      2752 8035
TIME...MOT...LOC 1925Z 019DEG 4KT 2747 8048

CRISTALDI