Hail in Florida, April 18, 2011

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MIAMI FL
140 PM EDT MON APR 18 2011

CONVECTIVE ACTIVITY DEVELOPING OVER N PALM BEACH COUNTY AT THE
MOMENT WITH MOVEMENT TOWARD THE E. EXPECT MORE DEVELOPMENT AS THE
AFTERNOON PROGRESSES ADDITIONALLY IN THE INTERIOR WHICH SHOULD ALSO
MOVE EASTWARD.

DISCUSSION...HIGH PRESSURE AT THE SURFACE AND ALOFT WILL BUILD
ACROSS FLA THIS WEEK. A SURFACE RIDGE AXIS WILL EXTEND FROM THE ATLC
WESTWARD ACROSS CENTRAL/N FL THROUGH THE PERIOD WITH THE MID/UPPER
HIGH PRES CENTERED OVER THE GULF OF MEX RIDGING NE OVER THE SAME
AREA. THE RESULT WILL BE A WARM WEEK AND ESSENTIALLY DRY. WITH AN
EASTERLY FLOW...A FEW STRAY SHRA MAY ALWAYS SNEAK UPON THE E COAST
FROM THE ATLC AND OCCUR IN THE INTERIOR AND W IN THE LATE AFTERNOON
AND EARLY EVE HOURS. BUT FORECAST RAOBS SHOW A DRIER AND STABLE
ATMOSPHERE ALOFT THROUGH THE REMAINDER OF THE WEEK AND INTO THE
WEEKEND. THUS...MOISTURE APPEARS TO BE TOO LOW TO MENTION
PRECIPITATION FOR THE REST OF THE WEEK.

&&
.AVIATION...
SOME TOWERING CU IS BEGINNING TO APPEAR ON VISIBLE SATELLITE ALONG
THE E CST SEA BREEZE AND SOME SHRA WILL LIKELY DEVELOP IN THE NEXT
HOUR OR SO AND HAVE INCLUDED IN THE 18Z TAFS FOR E CST TERMINALS. A
THUNDERSTORM OR TWO ARE ALSO POSSIBLE BY LATE THIS AFTERNOON AND
FEEL THAT THESE WILL REMAIN WEST OF THE TERMINALS BUT THEY COULD
PROVIDE STRONG OUTFLOW BOUNDARIES THAT MAY RETURN EAST SO ALSO
INTRODUCED VCTS AFT 21Z AND THESE THEN WILL DIMINISH AFT 00-01Z.
SOUTHEAST WIND WILL DIMINISH TO LESS THAN 5KT LATE THIS EVENING WITH
A WEST COAST SEA BREEZE AT KAPF BECOMING LIGHT SE AGAIN AFT 01-02Z.

&&
.MARINE...E-ESE WINDS 10-15 KT RANGE THROUGH FRI THEN POSSIBLY
INCREASING SOME OVER THE WEEKEND. SEAS THROUGH FRIDAY 4 FT OR LESS.

&&
.FIRE WEATHER...RH MAY FALL TO THE UPPER 30S TO NEAR 40 IN THE
WESTERN INTERIOR THROUGH THE WEEK BUT NO HIGHLIGHTS ARE EXPECTED.

&&
.PRELIMINARY POINT TEMPS/POPS...
WEST PALM BEACH  73  87  73  85 / 10 10 - -
FORT LAUDERDALE  74  86  76  86 / 10 10 - -
MIAMI            73  88  74  86 / 10 10 - -
NAPLES           68  88  68  89 / 10 10 - -

&&

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

DISCUSSION/MARINE...15/JR
AVIATION/RADAR/FIRE...30/KB

HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA
NATIONAL WEATHER SERVICE MIAMI FL
614 AM EDT MON APR 18 2011

FLZ063-066>075-168-172>174-190500-
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-
614 AM EDT MON APR 18 2011

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM EDT THIS MORNING...
...SCATTERED THUNDERSTORMS TODAY WITH SOME POSSIBLY STRONG...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA.

.DAY ONE...TODAY AND TONIGHT

VISIBILITY: ISOLATED AREAS OF DENSE FOG WILL REMAIN ACROSS
INTERIOR SECTIONS OF SOUTH FLORIDA THROUGH 9 AM. VISIBILITIES WILL
BE REDUCED TO AROUND OR LESS THAN ONE QUARTER OF A MILE ESPECIALLY
ALONG ALLIGATOR ALLEY WHERE VISIBILITY HAS BEEN REPORTED AS LOW AS
ONE CAR LENGTH.

THUNDERSTORMS: SEA BREEZE BOUNDARIES ARE EXPECTED TO DEVELOP AND
PUSH INLAND THIS AFTERNOON WITH SCATTERED THUNDERSTORMS DEVELOPING
ALONG THE BOUNDARIES. MOST STORMS WILL BE CONCENTRATED OVER THE
WESTERN SUBURBS OF THE EAST COAST COUNTIES AND INTERIOR SECTIONS
OF SOUTH FLORIDA.

WIND: THE STRONGEST THUNDERSTORMS MAY BE CAPABLE OF PRODUCING
WIND GUSTS TO AROUND 50 MPH.

HAIL: THE STRONGEST THUNDERSTORMS MAY BE CAPABLE OF PRODUCING NICKEL
SIZE HAIL.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

WIDESPREAD SPOTTER ACTIVATION IS NOT ANTICIPATED, HOWEVER
INDIVIDUAL SPOTTERS ARE ENCOURAGED TO REPORT HIGH WIND, HAIL AND
FLOODING TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
MIAMI.

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