Alert archive / Florida / Gale Warnings in 2020

Gale Warning 8, NWS Miami, FL

November 18, 2020

NWS Miami, FL issued this gale warning at Nov 18, 2020, 3:03 AM EST. It took effect at Nov 18, 2020, 1:00 PM EST. It was in force for 18 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Nov 18, 2020, 3:03 AM EST (08:03 UTC)
In effect from
Nov 18, 2020, 1:00 PM EST
Expired
Nov 19, 2020, 7:00 AM EST
In force
18 hr
Issued by
NWS Miami, FL

The text

As transmitted.

799 
WHUS72 KMFL 180803
MWWMFL

URGENT - MARINE WEATHER MESSAGE
National Weather Service Miami FL
303 AM EST Wed Nov 18 2020

GMZ676-181615-
/O.CON.KMFL.SC.Y.0042.000000T0000Z-201118T1800Z/
/O.UPG.KMFL.GL.A.0006.201118T1800Z-201119T0600Z/
/O.NEW.KMFL.GL.W.0008.201118T1800Z-201119T0600Z/
/O.CON.KMFL.SC.Y.0043.201119T0600Z-201121T0000Z/
Waters from Chokoloskee to Bonita Beach FL from 20 to 60 NM-
303 AM EST Wed Nov 18 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...
...GALE WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 1 AM EST
THURSDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 AM THURSDAY TO
7 PM EST FRIDAY...

* WHAT...For the Gale Warning, northeast winds 20 to 25 kt with 
  gusts up to 35 kt and seas 4 to 7 feet expected. For the first 
  Small Craft Advisory, northeast winds 20 to 25 kt with gusts 
  up to 30 kt and seas 4 to 7 feet. For the second Small Craft 
  Advisory, northeast winds 15 to 25 kt with gusts up to 30 kt 
  and seas 4 to 7 feet expected.

* WHERE...Waters from Chokoloskee to Bonita Beach FL from 20 to 
  60 NM.

* WHEN...For the Gale Warning, from 1 PM this afternoon to 1 AM 
  EST Thursday. For the Small Craft Advisory, until 1 PM EST 
  this afternoon. For the Small Craft Advisory, from 1 AM 
  Thursday to 7 PM EST Friday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe 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 remain in port.

&&

$$

AMZ671-181615-
/O.CON.KMFL.SC.Y.0042.000000T0000Z-201118T1800Z/
/O.UPG.KMFL.GL.A.0006.201118T1800Z-201119T0600Z/
/O.NEW.KMFL.GL.W.0008.201118T1800Z-201119T0600Z/
/O.CON.KMFL.SC.Y.0043.201119T0600Z-201121T0000Z/
Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM
excluding the territorial waters of Bahamas-
303 AM EST Wed Nov 18 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...
...GALE WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 1 AM EST
THURSDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 AM THURSDAY TO
7 PM EST FRIDAY...

* WHAT...For the Gale Warning, northeast winds around 25 kt with
  gusts up to 35 kt and seas 7 to 10 feet expected. For the first
  Small Craft Advisory, northeast winds around 25 kt with gusts up
  to 30 kt and seas 6 to 9 feet. For the second Small Craft 
  Advisory, northeast winds 20 to 25 kt with gusts up to 30 kt and
  seas 7 to 10 feet expected.

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

* WHEN...For the Gale Warning, from 1 PM this afternoon to 1 AM 
  EST Thursday. For the Small Craft Advisory, until 1 PM EST 
  this afternoon. For the Small Craft Advisory, from 1 AM 
  Thursday to 7 PM EST Friday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe 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 remain in port.

&&

$$

GMZ656-657-181615-
/O.CON.KMFL.SC.Y.0042.000000T0000Z-201121T0000Z/
Coastal waters from Chokoloskee to Bonita Beach FL out 20 NM-
Coastal waters from East Cape Sable to Chokoloskee FL out 20 NM-
303 AM EST Wed Nov 18 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY...

* WHAT...Northeast winds 15 to 25 kt with gusts up to 30 kt and 
  seas 1 to 4 feet.

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

* WHEN...Until 7 PM EST Friday.

* 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.

&&

$$

AMZ630-650-651-670-181615-
/O.CON.KMFL.SC.Y.0042.000000T0000Z-201121T0000Z/
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-
303 AM EST Wed Nov 18 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY...

* WHAT...Northeast winds 20 to 25 kt with gusts up to 30 kt and 
  seas 7 to 10 feet.

* WHERE...In Biscayne Bay, Biscayne Bay. In Atlantic, Coastal 
  waters from Deerfield Beach to Ocean Reef FL out 20 NM, 
  Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 
  NM and Waters from Jupiter Inlet to Deerfield Beach FL from 20 
  to 60 NM.

* WHEN...Until 7 PM EST Friday.

* 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.

&&

$$

AMZ610-181615-
/O.CON.KMFL.SC.Y.0042.000000T0000Z-201121T0000Z/
Lake Okeechobee-
303 AM EST Wed Nov 18 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY...

* WHAT...Northeast winds 10 to 20 kt with gusts up to 25 kt and 
  seas 1 to 2 feet.

* WHERE...Lake Okeechobee.

* WHEN...Until 7 PM EST Friday.

* 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.

&&

$$
3 follow-up statements
992 
WHUS72 KMFL 181404
MWWMFL

URGENT - MARINE WEATHER MESSAGE
National Weather Service Miami FL
904 AM EST Wed Nov 18 2020

Upgraded Small Craft Advisory to Gale Warning for near-shore
Atlantic waters of Broward/Miami-Dade Counties and Biscayne Bay.

AMZ630-651-190000-
/O.EXT.KMFL.SC.Y.0042.000000T0000Z-201118T1800Z/
/O.EXA.KMFL.GL.W.0008.201118T1800Z-201119T0600Z/
/O.NEW.KMFL.SC.Y.0044.201119T0600Z-201121T0000Z/
Biscayne Bay-
Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM-
904 AM EST Wed Nov 18 2020

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...
...GALE WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 1 AM EST
THURSDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM THURSDAY TO 7 PM EST
FRIDAY...

* WHAT...For the Gale Warning, northeast winds 25 to 30 kt with 
  gusts up to 35 kt and seas 7 to 10 feet expected. For the 
  first Small Craft Advisory, northeast winds around 25 kt with 
  gusts up to 35 kt and seas 6 to 9 feet. For the second Small 
  Craft Advisory, northeast winds 20 to 25 kt with gusts up to 
  30 kt and seas 7 to 10 feet expected.

* WHERE...In Atlantic, Coastal waters from Deerfield Beach to 
  Ocean Reef FL out 20 NM. In Biscayne Bay, Biscayne Bay.

* WHEN...For the Gale Warning, from 1 PM this afternoon to 1 AM 
  EST Thursday. For the Small Craft Advisory, until 1 PM EST 
  this afternoon. For the Small Craft Advisory, from 1 AM 
  Thursday to 7 PM EST Friday.

* IMPACTS...Strong winds will cause hazardous seas which could
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe 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 remain in port.

&&

$$

GMZ676-190000-
/O.CON.KMFL.SC.Y.0042.000000T0000Z-201118T1800Z/
/O.CON.KMFL.GL.W.0008.201118T1800Z-201119T0600Z/
/O.CON.KMFL.SC.Y.0043.201119T0600Z-201121T0000Z/
Waters from Chokoloskee to Bonita Beach FL from 20 to 60 NM-
904 AM EST Wed Nov 18 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...
...GALE WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO
1 AM EST THURSDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 AM THURSDAY TO
7 PM EST FRIDAY...

* WHAT...For the Gale Warning, northeast winds 20 to 25 kt with 
  gusts up to 35 kt and seas 4 to 7 feet expected. For the first 
  Small Craft Advisory, northeast winds 20 to 25 kt with gusts 
  up to 30 kt and seas 4 to 7 feet. For the second Small Craft 
  Advisory, northeast winds 15 to 25 kt with gusts up to 30 kt 
  and seas 4 to 7 feet expected.

* WHERE...Waters from Chokoloskee to Bonita Beach FL from 20 to 
  60 NM.

* WHEN...For the Gale Warning, from 1 PM this afternoon to 1 AM 
  EST Thursday. For the Small Craft Advisory, until 1 PM EST 
  this afternoon. For the Small Craft Advisory, from 1 AM 
  Thursday to 7 PM EST Friday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe 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 remain in port.

&&

$$

AMZ671-190000-
/O.CON.KMFL.SC.Y.0042.000000T0000Z-201118T1800Z/
/O.CON.KMFL.GL.W.0008.201118T1800Z-201119T0600Z/
/O.CON.KMFL.SC.Y.0043.201119T0600Z-201121T0000Z/
Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM
excluding the territorial waters of Bahamas-
904 AM EST Wed Nov 18 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...
...GALE WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO
1 AM EST THURSDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 AM THURSDAY TO
7 PM EST FRIDAY...

* WHAT...For the Gale Warning, northeast winds around 25 kt with 
  gusts up to 35 kt and seas 7 to 10 feet expected. For the 
  first Small Craft Advisory, northeast winds around 25 kt with 
  gusts up to 30 kt and seas 6 to 9 feet. For the second Small 
  Craft Advisory, northeast winds 20 to 25 kt with gusts up to 
  30 kt and seas 7 to 10 feet expected.

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

* WHEN...For the Gale Warning, from 1 PM this afternoon to 1 AM 
  EST Thursday. For the Small Craft Advisory, until 1 PM EST 
  this afternoon. For the Small Craft Advisory, from 1 AM 
  Thursday to 7 PM EST Friday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe 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 remain in port.

&&

$$

GMZ656-657-190000-
/O.CON.KMFL.SC.Y.0042.000000T0000Z-201121T0000Z/
Coastal waters from Chokoloskee to Bonita Beach FL out 20 NM-
Coastal waters from East Cape Sable to Chokoloskee FL out 20 NM-
904 AM EST Wed Nov 18 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY...

* WHAT...Northeast winds 15 to 25 kt with gusts up to 30 kt and 
  seas 1 to 4 feet.

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

* WHEN...Until 7 PM EST Friday.

* 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.

&&

$$

AMZ650-670-190000-
/O.CON.KMFL.SC.Y.0042.000000T0000Z-201121T0000Z/
Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM-
Waters from Jupiter Inlet to Deerfield Beach FL from 20 to 60 NM-
904 AM EST Wed Nov 18 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY...

* WHAT...Northeast winds 20 to 25 kt with gusts up to 30 kt and 
  seas 7 to 10 feet.

* WHERE...In Biscayne Bay, Biscayne Bay. In Atlantic, Coastal 
  waters from Deerfield Beach to Ocean Reef FL out 20 NM, 
  Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 
  NM and Waters from Jupiter Inlet to Deerfield Beach FL from 20 
  to 60 NM.

* WHEN...Until 7 PM EST Friday.

* 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.

&&

$$

AMZ610-190000-
/O.CON.KMFL.SC.Y.0042.000000T0000Z-201121T0000Z/
Lake Okeechobee-
904 AM EST Wed Nov 18 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY...

* WHAT...Northeast winds 10 to 20 kt with gusts up to 25 kt and 
  seas 1 to 2 feet.

* WHERE...Lake Okeechobee.

* WHEN...Until 7 PM EST Friday.

* 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.

&&

$$

Baxter
734 
WHUS72 KMFL 181953
MWWMFL

URGENT - MARINE WEATHER MESSAGE
National Weather Service Miami FL
253 PM EST Wed Nov 18 2020

Upgraded Small Craft Advisory to Gale Warning for near-shore
Atlantic waters of Broward/Miami-Dade Counties and Biscayne Bay.

GMZ676-191200-
/O.EXT.KMFL.GL.W.0008.000000T0000Z-201119T1200Z/
/O.EXT.KMFL.SC.Y.0043.201119T1200Z-201121T1200Z/
Waters from Chokoloskee to Bonita Beach FL from 20 to 60 NM-
253 PM EST Wed Nov 18 2020

...GALE WARNING NOW IN EFFECT UNTIL 7 AM EST THURSDAY...
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 7 AM THURSDAY TO 7 AM
EST SATURDAY...

* WHAT...For the Gale Warning, northeast winds 20 to 25 kt with
  gusts up to 35 kt and seas 4 to 7 feet expected. For the Small
  Craft Advisory, northeast winds 15 to 25 kt with gusts up to 30
  kt and seas 4 to 7 feet expected.

* WHERE...Waters from Chokoloskee to Bonita Beach FL from 20 to 
  60 NM.

* WHEN...For the Gale Warning, until 7 AM EST Thursday. For the 
  Small Craft Advisory, from 7 AM Thursday to 7 AM EST Saturday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe 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 remain in port.

&&

$$

AMZ630-651-191200-
/O.EXT.KMFL.GL.W.0008.000000T0000Z-201119T1200Z/
/O.EXT.KMFL.SC.Y.0044.201119T1200Z-201121T1200Z/
Biscayne Bay-
Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM-
253 PM EST Wed Nov 18 2020

...GALE WARNING NOW IN EFFECT UNTIL 7 AM EST THURSDAY...
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 7 AM THURSDAY TO 7 AM
EST SATURDAY...

* WHAT...For the Gale Warning, northeast winds 25 to 30 kt with
  gusts up to 35 kt and seas 7 to 10 feet expected. For the  
  Small Craft Advisory, northeast winds 20 to 25 kt with gusts up 
  to 30 kt and seas 7 to 10 feet expected.

* WHERE...In Atlantic, Coastal waters from Deerfield Beach to 
  Ocean Reef FL out 20 NM. In Biscayne Bay, Biscayne Bay.

* WHEN...For the Gale Warning, until 7 AM EST Thursday. For the
  Small Craft Advisory, from 7 AM Thursday to 7 AM EST Saturday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe 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 remain in port.

&&

$$

AMZ671-191200-
/O.EXT.KMFL.GL.W.0008.000000T0000Z-201119T1200Z/
/O.EXT.KMFL.SC.Y.0043.201119T1200Z-201121T1200Z/
Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM
excluding the territorial waters of Bahamas-
253 PM EST Wed Nov 18 2020

...GALE WARNING NOW IN EFFECT UNTIL 7 AM EST THURSDAY...
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 7 AM THURSDAY TO 7 AM
EST SATURDAY...

* WHAT...For the Gale Warning, northeast winds around 25 kt with
  gusts up to 35 kt and seas 7 to 10 feet expected. For the  
  Small Craft Advisory, northeast winds 20 to 25 kt with gusts up 
  to 30 kt and seas 7 to 10 feet expected.

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

* WHEN...For the Gale Warning, until 7 AM EST Thursday. For the
  Small Craft Advisory, from 7 AM Thursday to 7 AM EST Saturday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe 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 remain in port.

&&

$$

GMZ656-657-191200-
/O.EXT.KMFL.SC.Y.0042.000000T0000Z-201121T1200Z/
Coastal waters from Chokoloskee to Bonita Beach FL out 20 NM-
Coastal waters from East Cape Sable to Chokoloskee FL out 20 NM-
253 PM EST Wed Nov 18 2020

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 AM EST SATURDAY...

* WHAT...Northeast winds 15 to 25 kt with gusts up to 30 kt and 
  seas 1 to 4 feet.

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

* WHEN...Until 7 AM EST Saturday.

* 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.

&&

$$

AMZ650-670-191200-
/O.EXT.KMFL.SC.Y.0042.000000T0000Z-201121T1200Z/
Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM-
Waters from Jupiter Inlet to Deerfield Beach FL from 20 to 60 NM-
253 PM EST Wed Nov 18 2020

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 AM EST SATURDAY...

* WHAT...Northeast winds 20 to 25 kt with gusts up to 30 kt and 
  seas 7 to 10 feet.

* WHERE...In Biscayne Bay, Biscayne Bay. In Atlantic, Coastal 
  waters from Deerfield Beach to Ocean Reef FL out 20 NM, 
  Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 
  NM and Waters from Jupiter Inlet to Deerfield Beach FL from 20 
  to 60 NM.

* WHEN...Until 7 AM EST Saturday.

* 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.

&&

$$

AMZ610-191200-
/O.EXT.KMFL.SC.Y.0042.000000T0000Z-201121T1200Z/
Lake Okeechobee-
253 PM EST Wed Nov 18 2020

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 AM EST SATURDAY...

* WHAT...Northeast winds 10 to 20 kt with gusts up to 25 kt and 
  seas 1 to 2 feet.

* WHERE...Lake Okeechobee.

* WHEN...Until 7 AM EST Saturday.

* 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.

&&

$$

https://www.weather.gov/miami
186 
WHUS72 KMFL 190804
MWWMFL

URGENT - MARINE WEATHER MESSAGE
National Weather Service Miami FL
304 AM EST Thu Nov 19 2020

GMZ676-191615-
/O.CON.KMFL.GL.W.0008.000000T0000Z-201119T1200Z/
/O.CON.KMFL.SC.Y.0043.201119T1200Z-201121T1200Z/
Waters from Chokoloskee to Bonita Beach FL from 20 to 60 NM-
304 AM EST Thu Nov 19 2020

...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM EST THIS MORNING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING
TO 7 AM EST SATURDAY...

* WHAT...For the Gale Warning, northeast winds 20 to 25 kt with
  gusts up to 35 kt and seas 5 to 7 feet. For the Small Craft 
  Advisory, northeast winds 15 to 25 kt with gusts up to 30 kt and
  seas 3 to 6 feet expected.

* WHERE...Waters from Chokoloskee to Bonita Beach FL from 20 to 
  60 NM.

* WHEN...For the Gale Warning, until 7 AM EST this morning. For 
  the Small Craft Advisory, from 7 AM this morning to 7 AM EST 
  Saturday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe 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 remain in port.

&&

$$

AMZ630-651-191615-
/O.CON.KMFL.GL.W.0008.000000T0000Z-201119T1200Z/
/O.CON.KMFL.SC.Y.0044.201119T1200Z-201121T1200Z/
Biscayne Bay-
Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM-
304 AM EST Thu Nov 19 2020

...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM EST THIS MORNING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING
TO 7 AM EST SATURDAY...

* WHAT...For the Gale Warning, northeast winds 20 to 25 kt with
  gusts up to 35 kt and seas 7 to 10 feet. For the Small Craft
  Advisory, northeast winds 20 to 25 kt with gusts up to 30 kt 
  and seas 7 to 10 feet expected.

* WHERE...In Biscayne Bay, Biscayne Bay. In Atlantic, Coastal 
  waters from Deerfield Beach to Ocean Reef FL out 20 NM.

* WHEN...For the Gale Warning, until 7 AM EST this morning. For 
  the Small Craft Advisory, from 7 AM this morning to 7 AM EST 
  Saturday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe 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 remain in port.

&&

$$

AMZ671-191615-
/O.CON.KMFL.GL.W.0008.000000T0000Z-201119T1200Z/
/O.CON.KMFL.SC.Y.0043.201119T1200Z-201121T1200Z/
Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM
excluding the territorial waters of Bahamas-
304 AM EST Thu Nov 19 2020

...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM EST THIS MORNING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING
TO 7 AM EST SATURDAY...

* WHAT...For the Gale Warning, northeast winds around 25 kt with
  gusts up to 35 kt and seas 6 to 9 feet. For the Small Craft 
  Advisory, northeast winds 20 to 25 kt with gusts up to 30 kt and
  seas 6 to 9 feet expected.

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

* WHEN...For the Gale Warning, until 7 AM EST this morning. For 
  the Small Craft Advisory, from 7 AM this morning to 7 AM EST 
  Saturday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe 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 remain in port.

&&

$$

GMZ656-657-191615-
/O.CON.KMFL.SC.Y.0042.000000T0000Z-201121T1200Z/
Coastal waters from Chokoloskee to Bonita Beach FL out 20 NM-
Coastal waters from East Cape Sable to Chokoloskee FL out 20 NM-
304 AM EST Thu Nov 19 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
SATURDAY...

* WHAT...Northeast winds 15 to 20 kt with gusts up to 30 kt and 
  seas 1 to 4 feet.

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

* WHEN...Until 7 AM EST Saturday.

* 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.

&&

$$

AMZ650-670-191615-
/O.CON.KMFL.SC.Y.0042.000000T0000Z-201121T1200Z/
Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM-
Waters from Jupiter Inlet to Deerfield Beach FL from 20 to 60 NM-
304 AM EST Thu Nov 19 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
SATURDAY...

* WHAT...Northeast winds 20 to 25 kt with gusts up to 30 kt and 
  seas 6 to 9 feet.

* WHERE...Coastal waters from Jupiter Inlet to Deerfield Beach 
  FL out 20 NM and Waters from Jupiter Inlet to Deerfield Beach 
  FL from 20 to 60 NM.

* WHEN...Until 7 AM EST Saturday.

* 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.

&&

$$

AMZ610-191615-
/O.CON.KMFL.SC.Y.0042.000000T0000Z-201121T1200Z/
Lake Okeechobee-
304 AM EST Thu Nov 19 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
SATURDAY...

* WHAT...Northeast winds 15 to 20 kt with gusts up to 25 kt and
  lake waters choppy.

* WHERE...Lake Okeechobee.

* WHEN...Until 7 AM EST Saturday.

* 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.

&&

$$

What forecasters said that day

The local office's own words before this gale warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Miami, FL wrote its last area forecast discussion before this gale warning went out at Nov 18, 2:09 AM EST, 54 minutes earlier.

Area forecast discussion, Nov 18, 2:09 AM EST, 54 minutes before
Area Forecast Discussion
National Weather Service Miami FL
209 AM EST Wed Nov 18 2020

...WIND ADVISORY TODAY FOR EAST COASTAL AND METRO AREAS...

.Discussion...

Short Term (Today through Thursday):

A strong area of high pressure will dominate the weather pattern
across South Florida today bringing much drier conditions to the
region. A strong northeasterly flow will set up over the region
today due to an increasing pressure gradient between the strong area
of high pressure to the north and the frontal boundary to the south
in the Florida Straits. Wind speeds along the east coast will range
between 20 and 30 mph today with higher gusts. Therefore, a wind
advisory will be in place through this evening across the coastal
and metro areas along the east coast. A brief shower cannot be ruled
out across the east coast today along the breeze. High temperatures
will generally be cooler then what they have been recently as they
will rise into the upper 70s across most areas this afternoon.

High pressure will continue to dominate the weather pattern across
South Florida for tonight and into Thursday as well leaving the dry
air mass in place throughout this time frame. The pressure gradient
will remain tight which will allow for a gusty east to northeasterly
flow to continue. Temperatures will slowly start to moderate on
Thursday as the flow becomes more easterly. Highs will range from
the upper 70s to around 80 across most of the area.

Long term (Thursday Night - Tuesday):

Models depict broad high pressure dominating much of the SE CONUS
and the Gulf region for the beginning of the long term, while a
dissipating frontal boundary lingers just south of the Florida
peninsula. Pressure gradients between these two features will remain
tight, resulting in continuing breezy easterly winds through much of
the weekend. Meanwhile, models show a trough/front complex moving
across the central/midwest states, but the sfc front seems to not
push all the way into Florida. It will, however, weaken some the
dominant ridge and allow for moisture to begin filtering into the
area by late Saturday and into Sunday. Latest long range model
solutions suggest the formation of a low aloft near the Bahamas,
which should remain to the east of the state through early next
week. But it should contribute in further eroding the ridge over the
region, thus allowing for even more moisture to be advected into
SoFlo by the easterly winds. Model vertical x-sect analyses do show
deeper moisture gradually filtering from the Atlantic in the
mentioned time frame.

The synoptic scenario described above suggests that chances for
showers and a few thunderstorms will increase later in the weekend
and into early next week. Best chances for higher POPs/Wx coverage
will reside on the eastern half of SoFlo each afternoon through
Monday, then more drier air should reach the area by Tuesday. But
even so, POPs remain in the low-end scattered range so far, with no
compelling model data to deviate from that forecast philosophy attm.

Main concern for the long term remains the potential for Wind
Advisory conditions on Friday, and maybe into Saturday, primarily
along the eastern portions of SoFlo.

Temperatures are expected to remain near normals, with generally
comfortable conditions across the area.

&&

.Marine...

An area of high pressure will continue to build into the local
waters today. The pressure gradient between the area of high
pressure to the north and the frontal boundary to the south in the
Florida Straits will remain tight. This will allow for hazardous
marine conditions over the local waters today as a gusty
northeasterly flow remains in place. Seas will increase throughout
the day as well, especially across the the Atlantic waters. With the
prolonged gusty northeasterly flow, the hazardous marine conditions
over the local waters will continue through the end of the week.

&&

.Beach Forecast...

A strong northeasterly wind flow will continue across the region
today with the highest winds occurring across the east coast. This
will create a high risk of rip currents across the Atlantic Coast
Beaches during this time frame. With the prolonged strong
northeasterly flow, surf heights will increase across the east coast
especially across the beaches of Palm Beach County. Minor coastal
flooding is also possible at the times of high tide on Wednesday
along the east coast with the strong northeasterly flow in place.

&&

.Aviation...
VFR conditions will prevail throughout the forecast period. Winds
will increase out of the northeast on Wednesday morning and they
will remain gusty throughout the period. Wind speeds across the
east coast terminals could approach 20 kts with gusts to 30 kts
this afternoon.

&&

.Preliminary Point Temps/PoPs...
West Palm Beach  76  68  77  70 /  10  10  10  10
Fort Lauderdale  79  70  79  71 /  10  10  10  10
Miami            79  69  79  71 /  10  10  10  10
Naples           79  63  80  66 /   0   0   0   0

&&

.MFL WATCHES/WARNINGS/ADVISORIES...
FL...Wind Advisory from 7 AM this morning to 10 PM EST this evening
     for FLZ068-072-074-168-172-173.

     High Rip Current Risk through Friday evening for FLZ168-172-173.

AM...Small Craft Advisory until 1 PM EST this afternoon for AMZ671.

     Small Craft Advisory from 1 AM Thursday to 7 PM EST Friday for
     AMZ671.

     Gale Warning from 1 PM this afternoon to 1 AM EST Thursday for
     AMZ671.

     Small Craft Advisory until 7 PM EST Friday for AMZ610-630-650-
     651-670.

GM...Small Craft Advisory until 1 PM EST this afternoon for GMZ676.

     Small Craft Advisory from 1 AM Thursday to 7 PM EST Friday for
     GMZ676.

     Gale Warning from 1 PM this afternoon to 1 AM EST Thursday for
     GMZ676.

     Small Craft Advisory until 7 PM EST Friday for GMZ656-657.

&&

Short term/Marine/Beach...CWC
Long term...17
Hazardous weather outlook, Nov 17, 6:48 PM EST, 8 hours 15 minutes before
Hazardous Weather Outlook for South Florida
National Weather Service Miami FL
648 PM EST Tue Nov 17 2020

AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676-
181200-
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-
648 PM EST Tue Nov 17 2020

...High Risk of Rip Currents East Coast Beaches...
...Minor Coastal Flooding Possible Along Atlantic Coast...

This hazardous weather outlook is for South Florida.

.DAY ONE...TONIGHT

Coastal Flooding: Localized minor coastal flooding possible along the
Atlantic coast during high tide cycles.

Rip Currents: There is a high risk of rip currents across the
Atlantic Coast beaches.

Waterspouts: Isolated waterspouts are possible over the southern Atlantic
waters.

Winds: Winds will continue to increase out of the northeast over the
Atlantic waters, Gulf waters, Biscayne Bay, and Lake Okeechobee.
Winds speeds could approach gale force at times.

Waves: Seas over the Atlantic waters will build up to 6 to 8 feet.
Seas over the outer Gulf Waters could build to 7 feet.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

Hazardous marine conditions will persist through the end of the week
especially across the Gulf and Atlantic waters as a strong
northeasterly flow remains in place.

A high risk of rip currents will remain in place across the Atlantic
Coast Beaches through the end of the week due to the strong
northeasterly flow.

.SPOTTER INFORMATION STATEMENT...

Widespread Spotter activation is not anticipated, however,
individual spotters are encouraged to report any 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.

The office that day

Everything else NWS Miami, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 18, 2:33 AM ESTWind AdvisoryMFLBroward, Miami-Dade, Palm Beach42 hr
Nov 18, 9:04 AM ESTSmall Craft AdvisoryMFL4 days

Nearby

Gale Warnings in Florida, 2020Every gale warning in 2020

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.