Severe Thunderstorm Warning 95, NWS Miami, FL

000
WWUS52 KMFL 072121
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
520 PM EDT SAT JUL 7 2007

FLC043-072130-
/O.EXP.KMFL.SV.W.0095.000000T0000Z-070707T2130Z/
GLADES FL-
520 PM EDT SAT JUL 7 2007

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEAST GLADES COUNTY
EXPIRES AT 530 PM EDT...

NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE THUNDERSTORM HAS 
WEAKENED BELOW SEVERE LEVELS. THUS...THE SEVERE THUNDERSTORM WARNING 
WILL BE ALLOWED TO EXPIRE AT 530 PM EDT.

LAT...LON 2678 8118 2678 8096 2694 8109 2692 8120

$$

DG

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MIAMI FL
250 PM EDT SAT JUL 7 2007

.DISCUSSION...AS OF EARLY AFTERNOON...VISIBLE SATELLITE IMAGERY
AND SURFACE OBSERVATIONS SHOW THAT EAST AND WEST COAST SEA BREEZES
HAVE PUSHED INLAND. THE EAST COAST SEA BREEZE WAS ACTIVE ACROSS
THE EAST COAST METRO AREAS IN THE LATE MORNING TO EARLY AFTERNOON
HOURS BUT THIS ACTIVITY HAS SINCE WEAKENED. ELSEWHERE NUMEROUS
THUNDERSTORMS WERE DEVELOPING ALONG THE WEST COAST SEA BREEZE AND
ACROSS THE INTERIOR.

FOR THE REST OF THIS AFTERNOON AND EARLY THIS EVENING...EXPECT
SEA BREEZES TO CONTINUE INLAND. THIS SHOULD CAUSE AN INCREASE IN
ACTIVITY ACROSS INTERIOR AND NORTHERN LOCATIONS AS CONVERGENCE
INCREASES. STORMS MAY MOVE SLOWLY BEFORE PRODUCING OUTFLOW
BOUNDARIES AND MINOR ROADWAY/POOR DRAINAGE FLOODING WILL BE
POSSIBLE. EARLIER STATIONARY STORM OVER THE EAST COAST METRO AREAS
PRODUCED OVER 2.5 INCHES OF RAIN IN UNDER 40 MINUTES.

BEYOND THIS EVENING...MODELS AGREE THAT THE DEEP LAYERED RIDGE OVER THE
SOUTHWEST ATLANTIC WILL BUILD WESTWARD THROUGH TOMORROW AND THE
RIDGE AXIS WILL BUILD ACROSS SOUTH FL THIS PERIOD. THIS WILL BEGIN
A TRANSITION INTO A MORE TYPICAL GENERAL EASTERLY FLOW REGIME. ON
SUNDAY...NAM/GFS AGREE THAT DRIER MID LEVEL AIR POISED OVER THE
EASTERN BAHAMAS WILL MOVE WESTWARD AND ACROSS SOUTH FL...THOUGH
SOME MID LEVEL MOISTURE REMAINS IN PLACE ESPECIALLY NORTH OF A
GENERAL NAPLES TO PALM BEACH COUNTY LINE. NAM IS A LITTLE FURTHER
SOUTH WITH THE LINGERING MID LEVEL MOISTURE. WITH A GENERAL LIGHT
SE TRANSITIONAL FLOW IN PLACE...IT APPEARS THAT LATE MORNING/MIDDAY
SHOWERS/THUNDERSTORMS WILL BE POSSIBLE ACROSS EAST COAST LOCATIONS
WITH THE HIGHEST AFTERNOON POPS BEING ACROSS NORTHERN INTERIOR
LOCATIONS AS SEA BREEZE PUSHES INLAND FROM THE EAST COAST. AS THE
GENERAL EASTERLY FLOW REGIME TAKES OVER AND THE DEEP LAYERED RIDGE
BUILDS OVER SOUTH FL MONDAY AND INTO MID WEEK...THE COMBINATION OF
DRIER MID LEVEL AIR AND A DOMINANT EAST COAST SEA BREEZE WILL
FAVOR INTERIOR AND WESTERN AREAS FOR THE BULK OF AFTERNOON
CONVECTION...WITH LESS COVERAGE THAN IN PREVIOUS DAYS AND POPS
RETURNING BACK TOWARDS LOWER CLIMATOLOGICAL LEVELS. WITH THE
EASTERLY FLOW...THE WARMEST READINGS WILL BE FOUND ACROSS THE
WESTERN INTERIOR AND WEST COAST...WHERE MOST AREAS COULD SEE MAX
TEMPS IN THE 94-96 DEGREE RANGE EARLY NEXT WEEK DEPENDING ON HOW
EARLY ANY CONVECTION DEVELOPS TO OFFSET DAYTIME HEATING. HEAT
INDICES COULD ALSO APPROACH 105 DURING PEAK HEATING IN THESE AREAS
DUE TO CONTINUED HIGH DEWPOINTS.

IT SHOULD BE NOTED THAT AS WE TRANSITION BACK INTO AN EASTERLY FLOW
REGIME...THE RISK FOR RIP CURRENTS WILL INCREASE AT THE ATLANTIC
BEACHES ESPECIALLY BEGINNING ON MONDAY. BEACHGOERS SHOULD BE ALERT
TO THIS POSSIBILITY AS IT HAS BEEN A WHILE SINCE WEVE BEEN IN A
FAVORABLE PATTERN FOR RIP CURRENT FORMATION.

&&

.AVIATION...VFR CONDITIONS ARE EXPECTED OVER ALL TERMINALS THROUGH THE AFTERNOON
AND EVENING HOURS. MOST OF THE CONVECTION, WHICH COULD BECOME QUITE
STRONG WILL REMAIN INLAND AWAY FROM ALL TERMINALS AND WILL DECREASE
BY THE EARLY EVENING HOURS.

&&

.MARINE...SE WINDS 10 KTS OR LESS ON SUNDAY WILL BECOME EASTERLY TO
EAST SOUTHEASTERLY MONDAY THROUGH MID WEEK WITH SPEEDS GENERALLY 10
TO 15 KNOTS AND SEAS 3 TO 4 FEET.

&&

.FIRE WEATHER...NO CONCERNS OUTSIDE OF FREQUENT LIGHTNING STRIKES
WITH ANY THUNDERSTORMS.

&&

.PRELIMINARY POINT TEMPS/POPS...
WEST PALM BEACH  76  89  78  90 / 20 30 20 20
FORT LAUDERDALE  78  90  80  90 / 20 30 20 20
MIAMI            77  90  79  90 / 20 30 20 20
NAPLES           75  92  75  94 / 20 40 20 30

&&

.MFL WATCHES/WARNINGS/ADVISORIES...
FL...NONE.
AM...NONE.
GM...NONE.
&&

AVIATION: GR
REST: STRASSBERG

HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA
NATIONAL WEATHER SERVICE MIAMI FL
400 PM EDT SAT JUL 7 2007

FLZ063-066>075-168-172>174-081045-
GLADES-HENDRY-INLAND PALM BEACH-METRO PALM BEACH-COASTAL COLLIER-
INLAND COLLIER-INLAND BROWARD-METRO BROWARD-INLAND MIAMI DADE-
METRO MIAMI DADE-MAINLAND MONROE-COASTAL PALM BEACH-
COASTAL BROWARD-COASTAL MIAMI DADE-FAR SOUTH MIAMI DADE-
400 PM EDT SAT JUL 7 2007

...SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS THIS AFTERNOON...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA.

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS: THUNDERSTORMS ARE LIKELY AGAIN THIS EVENING AND
EVENING...MAINLY ACROSS INTERIOR, LAKE OKEECHOBEE AND NORTHEASTERN
SECTIONS OF SOUTH FLORIDA. THERE IS A CHANCE OF THUNDERSTORMS ELSEWHERE.
FREQUENT TO EXCESSIVE...DEADLY LIGHTNING STRIKES AND LOCALLY HEAVY RAINFALL
WILL BE THE PRIMARY HAZARDS ASSOCIATED WITH THESE STORMS. THE
STRONGEST THUNDERSTORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS UP
TO 40 MPH.

FLOODING: SLOW STORM MOTION AND ABUNDANT MOISTURE WILL RESULT IN
HEAVY RAINFALL WITH ANY STORMS THAT DEVELOP. THIS WILL RESULT IN PONDING
OF WATER ON POORLY DRAINED AREAS AND ROADWAYS, ESPECIALLY ACROSS
NORTHERN INTERIOR SECTIONS AND NEAR LAKE OKEECHOBEE.

TEMPERATURES: AFTERNOON TEMPERATURES IN THE MID 90S OVER THE
INTERIOR PORTIONS OF SOUTH FLORIDA ALONG WITH HIGH MOISTURE
CONTENT IN THE LOWER PORTION OF THE ATMOSPHERE WILL RESULT IN HEAT
INDICES OF AROUND 105 DEGREES.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

THE DEVELOPMENT OF STRONGER EASTERLY WINDS BY THE BEGINNING OF
NEXT WEEK WILL RESULT IN AN INCREASING THREAT FOR RIP CURRENTS
ALONG THE ATLANTIC COAST BEACHES.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

FOR MORE INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN
MIAMI WEBSITE AT WWW.WEATHER.GOV/MIAMI.

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIAMI FL
203 PM EDT SAT JUL 07 2007

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

0110 PM     TSTM WND GST     MIAMI LAKES             25.91N 80.31W
07/07/2007  M60 MPH          MIAMI-DADE         FL   NWS EMPLOYEE

0110 PM     TSTM WND DMG     MIAMI LAKES             25.91N 80.31W
07/07/2007                   MIAMI-DADE         FL   NWS EMPLOYEE

            4 TO 6 INCH DIAMETER BRANCHES DOWN

&&

RADER

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
419 PM EDT SAT JUL 7 2007

FLZ063-066-067-072100-
HENDRY FL-GLADES FL-INLAND PALM BEACH COUNTY FL-
419 PM EDT SAT JUL 7 2007

AT 416 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THUNDERSTORMS WERE RAPIDLY DEVELOPING OVER THE SOUTHERN SHORES OF
LAKE OKEECHOBEE INCLUDING THE CITY OF CLEWISTON. THESE STORMS WERE
NEARLY STATIONARY.

EXPECT FREQUENT LIGHTNING...GUSTY WINDS TO 50 MPH...PEA-SIZED HAIL...
AND TORRENTIAL DOWNPOURS. A WARNING WILL BE ISSUED IF THIS
THUNDERSTORM ACTIVITY STRENGTHENS.

STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER
DETAILS OR UPDATES.

DG