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Special Marine Warning


SPECIAL MARINE WARNING
GMZ656-657-211600-
/O.NEW.KMFL.MA.W.0165.170721T1424Z-170721T1600Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE MIAMI FL
1024 AM EDT FRI JUL 21 2017

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* SPECIAL MARINE WARNING FOR...
  COASTAL WATERS FROM CHOKOLOSKEE TO BONITA BEACH FL OUT 20 NM...
  COASTAL WATERS FROM EAST CAPE SABLE TO CHOKOLOSKEE FL OUT 20 NM...

* UNTIL NOON EDT

* AT 1024 AM EDT...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF
  PRODUCING WATERSPOUTS AND WIND GUSTS 34 KNOTS OR GREATER WERE
  LOCATED 7 NM SOUTHWEST OF CAPE ROMANO...OR 10 NM NORTH OF D
  TOWER...MOVING NORTHEAST AT 5 KNOTS.

  HAZARD...WATERSPOUTS AND WIND GUSTS 34 KNOTS OR GREATER.

  SOURCE...RADAR INDICATED.

  IMPACT...WATERSPOUTS CAN QUICKLY FORM AND CAPSIZE BOATS...DAMAGE
           VESSELS AND CREATE SUDDENLY HIGHER WAVES. MAKE SURE ALL
           ON BOARD ARE IN A SECURE LOCATION AND WEARING LIFE
           JACKETS.  EXPECT WIND GUSTS IN EXCESS OF 34
           KNOTS...SUDDENLY HIGHER WAVES...FREQUENT LIGHTNING AND
           HEAVY DOWNPOURS. MAKE SURE ALL ON BOARD ARE WEARING LIFE
           JACKETS.

* LOCATIONS IMPACTED INCLUDE...
  CHOKOLOSKEE...CHEVELIER BAY...CAPE ROMANO AQUATIC PRESERVE...CAPE
  ROMANO AND MARCO ISLAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO SAFE HARBOR IMMEDIATELY AS GUSTY WINDS AND HIGH WAVES ARE
EXPECTED.

THUNDERSTORMS CAN PRODUCE SUDDEN WATERSPOUTS. WATERSPOUTS CAN EASILY
OVERTURN BOATS AND CREATE LOCALLY HAZARDOUS SEAS. SEEK SAFE HARBOR
IMMEDIATELY.

&&

LAT...LON 2556 8178 2578 8183 2601 8178 2587 8136
      2580 8125 2571 8118
TIME...MOT...LOC 1424Z 243DEG 7KT 2574 8174

WATERSPOUT...POSSIBLE
HAIL...0.00IN
WIND...>34KTS

$$

IRL


Marine Weather Statement


MARINE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
1124 AM EDT FRI JUL 21 2017

AMZ651-211534-
/O.EXP.KMFL.MA.W.0166.000000T0000Z-170721T1530Z/
1124 AM EDT FRI JUL 21 2017

...THE SPECIAL MARINE WARNING WILL EXPIRE AT 1130 AM EDT...

THE AFFECTED AREAS WERE...
COASTAL WATERS FROM DEERFIELD BEACH TO OCEAN REEF FL OUT 20 NM...

THE THUNDERSTORM HAS WEAKENED AND NO LONGER POSES A SIGNIFICANT
THREAT TO BOATERS.

LAT...LON 2604 7989 2606 8007 2624 8007 2623 7983
TIME...MOT...LOC 1524Z 183DEG 4KT 2614 8000

$$

SI


Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Melbourne FL
1032 AM EDT Fri Jul 21 2017

AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141-
144-147-212200-
Flagler Beach to Volusia-Brevard County Line 0-20 nm-Volusia-
Brevard County Line to Sebastian Inlet 0-20 nm-
Sebastian Inlet to Jupiter Inlet 0-20 nm-Flagler Beach to Volusia-
Brevard County Line 20-60 nm-Volusia-
Brevard County Line to Sebastian Inlet 20-60 nm-
Sebastian Inlet to Jupiter Inlet 20-60 nm-Inland Volusia County-
Northern Lake County-Orange-Seminole-Southern Brevard County-
Osceola-Indian River-Okeechobee-St. Lucie-Martin-
Coastal Volusia County-Southern Lake County-
Northern Brevard County-
1032 AM EDT Fri Jul 21 2017

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA.

.DAY ONE...TODAY AND TONIGHT.

.THUNDERSTORM IMPACT...
Showers and storms will reach into southern interior sections of
east central Florida by midday. The east coast sea breeze will also
begin to form, with a few cells developing along it. Storms will
become scattered to numerous over the interior sections early to mid
afternoon, then move from the interior to the east coast during the
mid to late afternoon hours. The activity will cross the coast and
continue over the Atlantic waters late afternoon into early evening.
Storms will move a little faster across the southern sections,
toward the northeast at 10 mph, versus 5 mph in the north. A few
stronger storms containing wind gusts up to 50 mph, small hail,
frequent to excessive lightning strikes, and very heavy rain.

.FLOOD IMPACT...
Locally heavy rainfall accumulating up to 2 to 3 inches will cause
nuisance standing water on some roads and low lying areas. Areas
that have seen multiple rounds of heavy rain over the past several
days will be most vulnerable to flooding.

.MARINE THUNDERSTORM GUST IMPACT...
Scattered to numerous lightning storms are expected to impact the
Atlantic intracoastal waters and inland lakes this afternoon. Gusty
winds exceeding 35 knots and frequent lightning strikes are the main
hazards. Boaters are reminded that sudden changes in wind speed and
direction can occur well ahead of the heaviest rain from a lightning
storm. Seek safe harbor in advance of storms.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.
Scattered lightning storms are expected each afternoon into next
week. The primary threats will be dangerous cloud to ground
lightning and gusty winds. Slow moving storms will also produce
very heavy rains resulting in temporary flooding of some roads and
poor drainage areas.

.SPOTTER INFORMATION STATEMENT...
Spotters are requested to monitor the weather and self activate
if needed.

$$

Pendergrast/Glitto

Hazardous Weather Outlook for South Florida
National Weather Service Miami FL
930 AM EDT Fri Jul 21 2017

AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676-
220130-
Lake Okeechobee-Biscayne Bay-
Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM-
Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM-
Waters from Jupiter Inlet to Deerfield Beach FL from 20 to 60 NM-
Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM
excluding the territorial waters of Bahamas-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-
Coastal waters from Chokoloskee to Bonita Beach FL out 20 NM-
Coastal waters from East Cape Sable to Chokoloskee FL out 20 NM-
Waters from Chokoloskee to Bonita Beach FL from 20 to 60 NM-
930 AM EDT Fri Jul 21 2017

...THUNDERSTORMS POSSIBLE ACROSS SOUTH FLORIDA TODAY...
...POOR DRAINAGE FLOODING POSSIBLE WITH HEAVIER RAINFALL...
...WATERSPOUTS POSSIBLE OVER LOCAL WATERS...

This hazardous weather outlook is for South Florida.

.DAY ONE...TODAY AND TONIGHT

Thunderstorms: Thunderstorms are forecast to develop across South
Florida during the late morning hours, increasing in coverage across
the interior and the the Atlantic coast metro during the afternoon
and evening. The primary threats will be lightning, heavy rainfall,
and gusty wind.

Waterspouts: Waterspouts are possible over all the local waters
today, primarily through the early afternoon hours.

Flooding: Locally heavy rainfall may lead to poor drainage flooding
in urbanized and low lying areas. The primary impact will be
significant ponding of water on roadways.

Hail: Small hail may be possible with any stronger thunderstorms
across South Florida today.

Wind: Thunderstorm wind gusts of 45 to 50 miles per hour is possible
with any stronger thunderstorms today, especially in the eastern
half of the region.

Temperatures: Heat index values for the interior and west coast are
forecast to reach between 105 to 107 this afternoon.


.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

Scattered to numerous thunderstorms are possible each day, with the
greatest coverage shifting this weekend to interior and Gulf Coast
in the afternoons and evenings. Frequent lightning, gusty winds, and
torrential rainfall will be the primary hazards.

.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.

$$

Hazardous Weather Outlook
National Weather Service Jacksonville FL
408 AM EDT Fri Jul 21 2017

AMZ450-452-454-470-472-474-FLZ020>025-030>033-035>038-040-124-125-
GAZ132>136-149>154-162>166-220815-
Coastal waters from Altamaha Sound to Fernandina Beach FL out
20 NM-
Coastal waters from Fernandina Beach to St. Augustine FL out
20 NM-
Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-
Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to
60 NM-
Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM-
Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM-
Hamilton-Suwannee-Columbia-Baker-Inland Nassau-Inland Duval-Union-
Bradford-Clay-St. Johns-Gilchrist-Alachua-Putnam-Flagler-Marion-
Coastal Nassau-Coastal Duval-Coffee-Jeff Davis-Bacon-Appling-
Wayne-Atkinson-Ware-Pierce-Brantley-Inland Glynn-Coastal Glynn-
Echols-Clinch-Charlton-Inland Camden-Coastal Camden-
408 AM EDT Fri Jul 21 2017

This Hazardous Weather Outlook is for Northeast Florida,
Southeast Georgia and the Adjacent Coastal Waters.

.DAY ONE...Today and Tonight...

Isolated to scattered thunderstorms are expected to develop late
this morning and continue through this evening. Frequent lighting,
heavy rainfall and localized flooding are the primary hazards. A
few storms could produce strong wind gusts.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday...

Isolated to scattered thunderstorms are expected each day through
mid-week next week. Frequent lighting, heavy rainfall and
localized flooding are the primary hazards. A few storms could
produce strong wind gusts.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

For additional information, visit the National Weather Service in
Jacksonville website on the internet at weather.gov/jax.

$$


Short Term Forecast


Short Term Forecast
National Weather Service Melbourne FL
1124 AM EDT FRI JUL 21 2017

AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141-
144-147-211745-
Coastal Volusia-Flagler Beach to Volusia-
Brevard County Line 20 NM to 60 NM Offshore-Flagler Beach to Volusia-
Brevard County Line Out to 20 NM-Indian River-Inland Volusia-Martin-
Northern Brevard-Northern Lake-Okeechobee-Orange-Osceola-
Sebastian Inlet to Jupiter Inlet 20 NM to 60 NM Offshore-
Sebastian Inlet to Jupiter Inlet Out To 20 NM-Seminole-
Southern Brevard-Southern Lake-St. Lucie-Volusia-
Brevard County Line to Sebastian Inlet 20 NM to 60 NM Offshore-
Volusia-Brevard County Line to Sebastian Inlet Out to 20 NM-
1124 AM EDT FRI JUL 21 2017

.NOW...

Storms will increase in coverage over the interior through the early
afternoon. A few showers and storms will also form along the east
coast sea breeze...and coverage will increase into the mid and late
afternoon as storms over the interior move toward the east coast and
interact with storms and outflows along the sea breeze. The activity
will cross the coast and continue over the Atlantic waters late
afternoon into early evening.


&&

Additional details...including graphics are available online at:
http://www.weather.gov/mlb/blog

$$

52

Short Term Forecast
National Weather Service Miami FL
1100 AM EDT Fri Jul 21 2017

AMZ610-630-650-651-670-671-FLZ067-068-071>074-168-172>174-211900-
Lake Okeechobee-Biscayne Bay-
Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM-
Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM-
Waters from Jupiter Inlet to Deerfield Beach FL from 20 to 60 NM-
Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM
excluding the territorial waters of Bahamas-Inland Palm Beach-
Metro Palm Beach-Inland Broward-Metro Broward-Inland Miami-Dade-
Metro Miami-Dade-Coastal Palm Beach-Coastal Broward-Coastal Miami-
Dade-Far South Miami-Dade-
Including the cities of Pahokee, South Bay, Belle Glade,
Wellington, Lion Country Safari, South County Regional Park,
Palm Springs, Florida Gardens, Aberdeen, Boca West,
Miccosukee Indian Reservation, Markham Park, Coconut Creek,
Coral Springs, Tamarac, Sunrise, Plantation, Davie, Cooper City,
Hollywood, Pembroke Pines, Miramar, Homestead, Florida City,
Redland, Miccosukee Resort, Kendale Lakes, West Kendall,
Country Walk, Shark Valley, Miami, Miami Gardens, Miami Lakes,
Hialeah, Doral, South Miami, Kendall, Cutler Ridge, Jupiter,
West Palm Beach, Boca Raton, Pompano Beach, Fort Lauderdale,
Fort Lauderdale Beach, Hollywood Beach, Aventura, Miami Beach,
Miami Shores, Downtown Miami, Cutler Bay,
Homestead Bayfront Park, and Everglades National Park
1100 AM EDT Fri Jul 21 2017

.NOW...
Showers and thunderstorms will continue to develop across the
interior as we move through the rest of the morning and into the
afternoon hours. Storms will move northeast and affect the east
coast metro through the afternoon and evening hours. Gusty winds,
frequent lightning and very heavy rainfall will accompany some of
these storms. Street flooding is possible in areas of slow-moving
storms.


$$

Short Term Forecast
National Weather Service Miami FL
1100 AM EDT Fri Jul 21 2017

FLZ063-066-069-070-075-GMZ656-657-676-211900-
Glades-Hendry-Coastal Collier-Inland Collier-Mainland Monroe-
Coastal waters from Chokoloskee to Bonita Beach FL out 20 NM-
Coastal waters from East Cape Sable to Chokoloskee FL out 20 NM-
Waters from Chokoloskee to Bonita Beach FL from 20 to 60 NM-
Including the cities of Palmdale, Moore Haven, Clewiston,
LaBelle, Big Cypress Seminole Reservation, Naples, Immokalee,
and Flamingo
1100 AM EDT Fri Jul 21 2017

.NOW...
Showers and thunderstorms will continues this morning and
afternoon across the Gulf coast and interior. Gusty winds,
frequent lightning and very heavy rainfall will accompany some of
these storms. Street flooding is possible in areas of slow-moving
storms.

$$
Kelly

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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