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Coastal Flood Advisory


Coastal Hazard Message
National Weather Service Miami FL
358 AM EDT Sun Sep 20 2020

FLZ172-173-210200-
/O.EXA.KMFL.RP.S.0046.000000T0000Z-200923T0000Z/
/O.CON.KMFL.CF.Y.0002.000000T0000Z-200921T0000Z/
Coastal Broward-Coastal Miami-Dade-
358 AM EDT Sun Sep 20 2020

...HIGH RIP CURRENT RISK IN EFFECT THROUGH TUESDAY EVENING...
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

* WHAT...For the Coastal Flood Advisory, minor coastal flooding.
  For the High Rip Current Risk, dangerous rip currents.

* WHERE...Coastal Broward and Coastal Miami-Dade Counties.

* WHEN...For the Coastal Flood Advisory, until 8 PM EDT this
  evening. For the High Rip Current Risk, through at least Tuesday
  evening.

* IMPACTS...Flooding of lots, parks, and roads with only
  isolated road closures expected. Rip currents can sweep even
  the best swimmers away from shore into deeper water.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don`t swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$


Small Craft Advisory


URGENT - MARINE WEATHER MESSAGE
National Weather Service Miami FL
405 AM EDT Sun Sep 20 2020

GMZ656-657-676-210200-
/O.EXA.KMFL.SC.Y.0036.200920T1800Z-200923T0000Z/
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-
405 AM EDT Sun Sep 20 2020

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO
8 PM EDT TUESDAY...

* WHAT...Northeast winds 15 to 25 kt with gusts up to 30 kt and
  seas 3 to 6 feet expected.

* WHERE...Coastal waters from Chokoloskee to Bonita Beach FL out
  20 NM, Coastal waters from East Cape Sable to Chokoloskee FL
  out 20 NM and Waters from Chokoloskee to Bonita Beach FL from
  20 to 60 NM.

* WHEN...From 2 PM this afternoon to 8 PM EDT Tuesday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

A sudden onset of rough seas may cause hazardous conditions,
which may occur suddenly at jetties and inlets. These conditions
could catch boaters by surprise. Boaters should use caution when
entering or exiting the inlets and jetty areas.

&&

$$

URGENT - MARINE WEATHER MESSAGE
National Weather Service Miami FL
405 AM EDT Sun Sep 20 2020

AMZ651-671-210200-
/O.CON.KMFL.SC.Y.0036.200920T1800Z-200923T0000Z/
Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM-
Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM
excluding the territorial waters of Bahamas-
405 AM EDT Sun Sep 20 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 PM THIS
AFTERNOON TO 8 PM EDT TUESDAY...

* WHAT...Northeast winds 15 to 25 kt with gusts up to 30 kt and
  seas 6 to 11 feet expected.

* WHERE...Coastal waters from Deerfield Beach to Ocean Reef FL
  out 20 NM and Waters from Deerfield Beach to Ocean Reef FL
  from 20 to 60 NM excluding the territorial waters of Bahamas.

* WHEN...From 2 PM this afternoon to 8 PM EDT Tuesday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

A sudden onset of rough seas may cause hazardous conditions,
which may occur suddenly at jetties and inlets. These conditions
could catch boaters by surprise. Boaters should use caution when
entering or exiting the inlets and jetty areas.

&&

$$

URGENT - MARINE WEATHER MESSAGE
National Weather Service Miami FL
405 AM EDT Sun Sep 20 2020

AMZ630-210200-
/O.EXB.KMFL.SC.Y.0036.200921T0600Z-200923T0000Z/
Biscayne Bay-
405 AM EDT Sun Sep 20 2020

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM MONDAY TO 8 PM EDT
TUESDAY...

* WHAT...Northeast winds 15 to 25 kt with gusts up to 30 kt and
  rough seas expected.

* WHERE...Biscayne Bay.

* WHEN...From 2 AM Monday to 8 PM EDT Tuesday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

A sudden onset of rough seas may cause hazardous conditions,
which may occur suddenly at jetties and inlets. These conditions
could catch boaters by surprise. Boaters should use caution when
entering or exiting the inlets and jetty areas.

&&

$$

URGENT - MARINE WEATHER MESSAGE
National Weather Service Tampa Bay Ruskin FL
349 AM EDT Sun Sep 20 2020

GMZ853-856-873-876-202000-
/O.EXB.KTBW.SC.Y.0033.200920T1800Z-200921T1400Z/
Coastal waters from Englewood to Tarpon Springs FL out 20 NM-
Coastal waters from Bonita Beach to Englewood FL out 20 NM-
Waters from Englewood to Tarpon Springs FL out 20 to 60 NM-
Waters from Bonita Beach to Englewood FL out 20 to 60 NM-
349 AM EDT Sun Sep 20 2020

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO
10 AM EDT MONDAY...

* WHAT...Northeast winds around 20 knots with gusts up to 25
  knots expected. Seas build up to 7 feet.

* WHERE...Coastal waters from Englewood to Tarpon Springs FL out
  20 NM, Coastal waters from Bonita Beach to Englewood FL out 20
  NM, Waters from Englewood to Tarpon Springs FL out 20 to 60 NM
  and Waters from Bonita Beach to Englewood FL out 20 to 60 NM.

* WHEN...From 2 PM this afternoon to 10 AM EDT Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$


Rip Current Statement


Coastal Hazard Message
National Weather Service Miami FL
358 AM EDT Sun Sep 20 2020

FLZ172-173-210200-
/O.EXA.KMFL.RP.S.0046.000000T0000Z-200923T0000Z/
/O.CON.KMFL.CF.Y.0002.000000T0000Z-200921T0000Z/
Coastal Broward-Coastal Miami-Dade-
358 AM EDT Sun Sep 20 2020

...HIGH RIP CURRENT RISK IN EFFECT THROUGH TUESDAY EVENING...
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

* WHAT...For the Coastal Flood Advisory, minor coastal flooding.
  For the High Rip Current Risk, dangerous rip currents.

* WHERE...Coastal Broward and Coastal Miami-Dade Counties.

* WHEN...For the Coastal Flood Advisory, until 8 PM EDT this
  evening. For the High Rip Current Risk, through at least Tuesday
  evening.

* IMPACTS...Flooding of lots, parks, and roads with only
  isolated road closures expected. Rip currents can sweep even
  the best swimmers away from shore into deeper water.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don`t swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$


Coastal Flood Statement


Coastal Hazard Message
National Weather Service Miami FL
358 AM EDT Sun Sep 20 2020

FLZ069-210000-
/O.CON.KMFL.CF.S.0006.000000T0000Z-200921T0000Z/
Coastal Collier-
358 AM EDT Sun Sep 20 2020

* WHAT...Isolated minor coastal flooding.

* WHERE...Coastal Collier County.

* WHEN...Through this evening.

* IMPACTS...Some water on low lying roads and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$

Coastal Hazard Message
National Weather Service Key West FL
230 AM EDT Sun Sep 20 2020

FLZ077-210000-
/O.EXB.KKEY.CF.S.0004.000000T0000Z-200921T0000Z/
Monroe Middle Keys-
230 AM EDT Sun Sep 20 2020

* WHAT...Minor saltwater flooding.

* WHERE...Middle Florida Keys.

* WHEN...Through early this evening.

* IMPACTS...Minor saltwater flooding of low elevation streets
  and lots is likely. Some storm drains will overflow, and some
  seawalls and docks will be overtopped. Boaters can expect less
  clearance under fixed bridges. Motorists should remember that
  persistent puddles around the times of high tide are almost
  certain to contain a mix of saltwater.

* ADDITIONAL DETAILS...The minor saltwater flooding will be most
  pronounced around the times of high tide, which will be during
  the predawn hours this morning, and again late this afternoon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$

Coastal Hazard Message
National Weather Service Key West FL
230 AM EDT Sun Sep 20 2020

FLZ076-210000-
/O.EXT.KKEY.CF.S.0004.000000T0000Z-200921T0000Z/
Monroe Upper Keys-
230 AM EDT Sun Sep 20 2020

* WHAT...Minor saltwater flooding.

* WHERE...Bayside communities of the Upper Keys.

* WHEN...Through this evening.

* IMPACTS...Minor saltwater flooding of low elevation streets and
  lots is likely. Some storm drains will overflow, and some
  seawalls and docks will be overtopped. Boaters can expect less
  clearance under fixed bridges. Motorists should remember that
  persistent puddles, especially around the times of high tide,
  are almost certain to contain a mix of saltwater.

* ADDITIONAL DETAILS...Water levels will remain elevated, with
  very little relief at low tide.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$


Hazardous Weather Outlook


Hazardous Weather Outlook for South Florida
National Weather Service Miami FL
1036 AM EDT Sun Sep 20 2020

AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676-
210245-
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-
1036 AM EDT Sun Sep 20 2020

...Flooding from Storms Possible Today and Tonight...
...Deteriorating Marine and Beach Conditions...
...Minor Coastal Flooding Expected Around High Tide...

This hazardous weather outlook is for South Florida.

.DAY ONE...TODAY AND TONIGHT

Rip currents: A high risk of rip currents exists along the Atlantic
beaches of South Florida. Beach erosion is possible along the
Atlantic and high surf is forecast along the Palm Beaches.

Coastal Flooding: Minor flooding of coastal locations is possible,
particularly around the times of high tide due to astronomically
higher tides.

Thunderstorms:  A few thunderstorms are possible across South Florida
this afternoon and evening. Lightning and locally excessive rainfall
are the primary hazards. Strong wind gusts and funnel clouds are
possible with a strong storm or two today.

Waterspouts: A few waterspouts are possible today for all the local
South Florida waters.

Wind: Strong thunderstorms today could produce wind gusts to 50 mph.
Increasing northeasterly winds of 20 to 25 knots with gusts to gale
force this afternoon into tonight will pose hazardous marine
conditions across all the South Florida waters.

Flooding: Heavy rainfall from thunderstorms could lead to flooding,
particularly in urbanized and poorly drained areas in the east coast
metro areas this afternoon, evening, and tonight. Areas that drain to
local bodies of water may also experience slower than normal
drainage around the times of high tide due to the astronomically
higher tides.

Waves: Incoming swell and increasing winds will allow seas in the
Atlantic to build to 7 to 12 feet, mainly over the Palm Beach coastal
waters.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

The frontal boundary will push across the area on Monday with
showers and thunderstorms capable of producing strong wind gusts,
torrential rainfall, localized flooding, and lightning.

Hazardous marine and beach conditions will linger through the week,
particularly in the Atlantic.

Thunderstorm chances return to the forecast later in the week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed. Please relay any information about
observed severe weather and flooding to the National Weather Service
forecast office in Miami while following all local, state, and CDC
guidelines.

For more information...visit the National Weather Service in
Miami website at www.weather.gov/miami.

$$

Hazardous Weather Outlook
National Weather Service Key West FL
426 AM EDT Sun Sep 20 2020

FLZ076>078-GMZ031>035-042>044-052>055-072>075-211000-
Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
Bayside and Gulf side from Craig Key to west end of Seven Mile
Bridge-
Gulf waters from East Cape Sable to Chokoloskee 20 to 60 NM out
and beyond 5 fathoms-
Gulf of Mexico including Dry Tortugas and Rebecca Shoal Channel-
Gulf of Mexico from west end of Seven Mile Bridge to Halfmoon
Shoal out to 5 Fathoms-
Hawk Channel from Ocean Reef to Craig Key out to the reef-
Hawk Channel from Craig Key to west end of Seven Mile Bridge out
to the reef-
Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal
out to the reef-
Straits of Florida from Ocean Reef to Craig Key out 20 NM-
Straits of Florida from Craig Key to west end of Seven Mile
Bridge out 20 NM-
Straits of Florida from west end of Seven Mile Bridge to south of
Halfmoon Shoal out 20 NM-
Straits of Florida from Halfmoon Shoal to 20 NM west of Dry
Tortugas out 20 NM-
Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out-
Straits of Florida from Craig Key to west end of Seven Mile
Bridge 20 to 60 NM out-
Straits of Florida from west end of Seven Mile Bridge to south of
Halfmoon Shoal 20 to 60 NM out-
Straits of Florida from Halfmoon Shoal to 20 NM west of Dry
Tortugas 20 to 60 NM out-
426 AM EDT Sun Sep 20 2020

This Hazardous Weather Outlook is for the Florida Keys and
adjacent coastal waters.

.DAY ONE...TODAY AND TONIGHT

Atmospheric conditions will be somewhat favorable for waterspouts
today along the nearshore waters of the Florida Keys. Waterspouts
tend to form beneath lines of building cumulus clouds, just at
the hint of rain. Waterspouts can easily flip boats, and should be
avoided always.

Minor saltwater flooding of low elevation streets and lots is
likely to continue across Bayside communities of the Upper Keys
and parts of the Middle Keys today.

Isolated thunderstorms will be possible along the Florida Keys
and surrounding coastal waters today, with scattered thunderstorms
possible tonight. The primary thunderstorm hazards will be cloud
to surface lightning strikes and locally gusty winds.

Small Craft Advisories will likely be required for the eastern
Straits of Florida tonight, due to building north swell.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

Scattered thunderstorms will be possible Monday through Tuesday
morning, then again Thursday through Saturday. The primary
thunderstorm hazards will be cloud to surface lightning strikes
and locally gusty winds. The strongest thunderstorm wind gusts are
expected Monday and Monday night.

Small Craft Advisories will likely be required for parts of the
Keys waters on Monday, and are expected for all waters Monday
night into Tuesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

$$


Short Term Forecast


Short Term Forecast
National Weather Service Key West FL
1018 AM EDT Sun Sep 20 2020

FLZ076>078-GMZ031>035-042>044-052>055-072>075-201530-
Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys-
Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood
Sound-
Bayside and Gulf side from Craig Key to west end of Seven Mile
Bridge-
Gulf waters from East Cape Sable to Chokoloskee 20 to 60 NM out and
beyond 5 fathoms-
Gulf of Mexico including Dry Tortugas and Rebecca Shoal Channel-
Gulf of Mexico from west end of Seven Mile Bridge to Halfmoon Shoal
out to 5 Fathoms-
Hawk Channel from Ocean Reef to Craig Key out to the reef-
Hawk Channel from Craig Key to west end of Seven Mile Bridge out to
the reef-
Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal
out to the reef-
Straits of Florida from Ocean Reef to Craig Key out 20 NM-
Straits of Florida from Craig Key to west end of Seven Mile Bridge
out 20 NM-
Straits of Florida from west end of Seven Mile Bridge to south of
Halfmoon Shoal out 20 NM-
Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas
out 20 NM-
Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out-
Straits of Florida from Craig Key to west end of Seven Mile Bridge
20 to 60 NM out-
Straits of Florida from west end of Seven Mile Bridge to south of
Halfmoon Shoal 20 to 60 NM out-
Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas
20 to 60 NM out-
Including the Communities of Key Largo, Marathon, and Key West
1018 AM EDT Sun Sep 20 2020

.NOW...
No significant precipitation impacts are detected across the
Florida Keys and adjacent coastal waters at this time. The next
Short Term Forecast will be issued when Florida Keys National
Weather Service forecasters determine one is needed.

$$

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
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE