Alert archive / Florida / Small Craft Advisories in 2021

Small Craft Advisory 28, NWS Key West, FL

August 13, 2021

NWS Key West, FL issued this small craft advisory at Aug 13, 2021, 11:01 PM EDT. It was in force for 38 hr.

The area

The counties it named.

The facts

Issued: Aug 13, 2021, 11:01 PM EDT (03:01 UTC)
Expired: Aug 15, 2021, 1:00 PM EDT
In force: 38 hr
Issued by: NWS Key West, FL

The text

As transmitted.

218 
WHUS72 KKEY 140301
MWWKEY

URGENT - MARINE WEATHER MESSAGE
National Weather Service Key West FL
1101 PM EDT Fri Aug 13 2021

GMZ031-032-042-043-052-053-072-073-141015-
/O.CAN.KKEY.TR.W.1006.000000T0000Z-000000T0000Z/
/O.NEW.KKEY.SC.Y.0028.210814T0301Z-210815T0600Z/
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
Bayside and Gulf side from Craig Key to west end of Seven Mile
Bridge-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-
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 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-
1101 PM EDT Fri Aug 13 2021

...SMALL CRAFT ADVISORY IN EFFECT...
...TROPICAL STORM WARNING IS CANCELLED...

* WHAT...Southeast winds 20 to 25 kt with occasional gusts near 30
  knots. Seas up to 7 to 8 feet along the outer fringes of the
  Reef and up to 8 to 9 feet across the Straits of Florida
  southeast of the Seven Mile Bridge. 

* WHERE...The Straits of Florida and Hawk Channel east of the
  Seven Mile Bridge, Florida Bay, and the Bayside and Gulf side
  from the west end of Seven Mile Bridge to Craig Key.

* WHEN...In effect.

* IMPACTS...A Small Craft Advisory means that wind speeds of 20 to
  33 knots, or seas of 7 feet or greater, are expected to produce
  hazardous conditions for small craft. These hazardous conditions
  may result in poor vessel handling and steering response,
  broaching, overturned dinghies and kayaks, slips and falls on
  slippery decks, rub damage along docks and seawalls, swamped
  bows at reef tract mooring balls, and dragging anchors.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced boaters, especially those with smaller vessels,
should avoid operating in these conditions.

&&

$$

GMZ033>035-044-054-055-074-075-141015-
/O.CON.KKEY.TR.W.1006.000000T0000Z-000000T0000Z/
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 west end of Seven Mile Bridge to Halfmoon Shoal
out to the reef-
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 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-
1101 PM EDT Fri Aug 13 2021

...TROPICAL STORM WARNING REMAINS IN EFFECT...

* WHAT...Winds 25 to 30 knots with occasional gusts near 40 knots.
  Seas up to 7 to 10 feet along the outer fringes of the Reef and
  across the Straits of Florida. Seas 7 to 9 feet in the deep
  waters adjacent to the Dry Tortugas. 

* WHERE...The Straits of Florida and Hawk Channel west of the
  Seven Mile Bridge, the Gulf of Mexico from the west end of Seven
  Bridge to Halfmoon Shoal, and the Gulf waters including the Dry
  Tortugas.

* WHEN...In effect.

* IMPACTS...Very 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.

&&

$$

CLR

5 follow-up statements

168 
WHUS72 KKEY 140855
MWWKEY

URGENT - MARINE WEATHER MESSAGE
National Weather Service Key West FL
455 AM EDT Sat Aug 14 2021

GMZ033>035-044-054-055-074-075-141600-
/O.CON.KKEY.TR.W.1006.000000T0000Z-000000T0000Z/
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 west end of Seven Mile Bridge to Halfmoon Shoal
out to the reef-
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 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-
455 AM EDT Sat Aug 14 2021

...TROPICAL STORM WARNING REMAINS IN EFFECT...

* WHAT...Winds 25 to 30 knots with occasional gusts near 40 
  knots. Seas up to 7 to 10 feet along the outer fringes of the 
  Reef and across the Straits of Florida. Seas 7 to 9 feet in 
  the deep waters adjacent to the Dry Tortugas.

* WHERE...The Straits of Florida and Hawk Channel west of the 
  Seven Mile Bridge, the Gulf of Mexico from the west end of 
  Seven Bridge to Halfmoon Shoal, and the Gulf waters including 
  the Dry Tortugas.

* WHEN...In effect.

* IMPACTS...Very 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.

&&

$$

GMZ031-032-042-043-052-053-072-073-141600-
/O.CON.KKEY.SC.Y.0028.000000T0000Z-210815T0600Z/
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
Bayside and Gulf side from Craig Key to west end of Seven Mile
Bridge-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-
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 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-
455 AM EDT Sat Aug 14 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT...

* WHAT...Southeast winds 20 to 25 kt with occasional gusts near 
  30 knots. Seas up to 7 to 8 feet along the outer fringes of 
  the Reef and up to 8 to 9 feet across the Straits of Florida 
  southeast of the Seven Mile Bridge.

* WHERE...The Straits of Florida and Hawk Channel east of the 
  Seven Mile Bridge, Florida Bay, and the Bayside and Gulf side 
  from the west end of Seven Mile Bridge to Craig Key.

* WHEN...In effect.

* IMPACTS...A Small Craft Advisory means that wind speeds of 20 
  to 33 knots, or seas of 7 feet or greater, are expected to 
  produce hazardous conditions for small craft. These hazardous 
  conditions may result in poor vessel handling and steering 
  response, broaching, overturned dinghies and kayaks, slips and 
  falls on slippery decks, rub damage along docks and seawalls, 
  swamped bows at reef tract mooring balls, and dragging anchors.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced boaters, especially those with smaller vessels,
should avoid operating in these conditions.

&&

$$

CLR

426 
WHUS72 KKEY 141515
MWWKEY

URGENT - MARINE WEATHER MESSAGE
National Weather Service Key West FL
1115 AM EDT Sat Aug 14 2021

GMZ033>035-044-054-055-074-075-142315-
/O.CAN.KKEY.TR.W.1006.000000T0000Z-000000T0000Z/
/O.EXA.KKEY.SC.Y.0028.000000T0000Z-210815T0600Z/
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 west end of Seven Mile Bridge to Halfmoon Shoal
out to the reef-
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 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-
1115 AM EDT Sat Aug 14 2021

...SMALL CRAFT ADVISORY IN EFFECT...
...TROPICAL STORM WARNING IS CANCELLED...

* WHAT...Southeast winds 20 to 30 knots with occasional gusts near
  40 knots. Seas up 6 to 10 feet early along the outer fringes 
  of the Reef and across the Straits of Florida. Seas 7 to 9 feet 
  across the deep waters adjacent to the Dry Tortugas.

* WHERE...Straits of Florida, Hawk Channel, Florida Bay and the
  Gulf waters including the Dry Tortugas.

* WHEN...In Effect.

* IMPACTS...A Small Craft Advisory means that wind speeds of 20 
  to 33 knots, or seas of 7 feet or greater, are expected to 
  produce hazardous conditions for small craft. These hazardous 
  conditions may result in poor vessel handling and steering 
  response, broaching, overturned dinghies and kayaks, slips and 
  falls on slippery decks, rub damage along docks and seawalls, 
  swamped bows at reef tract mooring balls, and dragging anchors.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced boaters, especially those with smaller vessels,
should avoid operating in these conditions.

&&

$$

GMZ031-032-042-043-052-053-072-073-142315-
/O.CON.KKEY.SC.Y.0028.000000T0000Z-210815T0600Z/
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
Bayside and Gulf side from Craig Key to west end of Seven Mile
Bridge-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-
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 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-
1115 AM EDT Sat Aug 14 2021

...SMALL CRAFT ADVISORY IN EFFECT...

* WHAT...Southeast winds 20 to 30 knots with occasional gusts near
  40 knots. Seas up 6 to 10 feet early along the outer fringes 
  of the Reef and across the Straits of Florida. Seas 7 to 9 feet 
  across the deep waters adjacent to the Dry Tortugas.

* WHERE...Straits of Florida, Hawk Channel, Florida Bay and the
  Gulf waters including the Dry Tortugas.
* WHEN...In effect.

* IMPACTS...A Small Craft Advisory means that wind speeds of 20 
  to 33 knots, or seas of 7 feet or greater, are expected to 
  produce hazardous conditions for small craft. These hazardous 
  conditions may result in poor vessel handling and steering 
  response, broaching, overturned dinghies and kayaks, slips and 
  falls on slippery decks, rub damage along docks and seawalls, 
  swamped bows at reef tract mooring balls, and dragging anchors.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced boaters, especially those with smaller vessels,
should avoid operating in these conditions.

&&

$$

431 
WHUS72 KKEY 142250
MWWKEY

URGENT - MARINE WEATHER MESSAGE
National Weather Service Key West FL
650 PM EDT Sat Aug 14 2021

GMZ031>035-042>044-052>055-072>075-150700-
/O.EXT.KKEY.SC.Y.0028.000000T0000Z-210815T1000Z/
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-
650 PM EDT Sat Aug 14 2021

...SMALL CRAFT ADVISORY IN EFFECT...

* WHAT...Southeast winds 20 to 25 knots with occasional gusts near
  40 knots in squalls. Seas of 5 to 8 feet along the outer 
  fringes of the Reef and across the Straits of Florida and across
  the deep waters adjacent to the Dry Tortugas.

* WHERE...Straits of Florida, Hawk Channel, Florida Bay and the 
  Gulf waters including the Dry Tortugas.

* WHEN...In Effect.

* IMPACTS...A Small Craft Advisory means that wind speeds of 20 
  to 33 knots, or seas of 7 feet or greater, are expected to 
  produce hazardous conditions for small craft. These hazardous 
  conditions may result in poor vessel handling and steering 
  response, broaching, overturned dinghies and kayaks, slips and 
  falls on slippery decks, rub damage along docks and seawalls, 
  swamped bows at reef tract mooring balls, and dragging anchors.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced boaters, especially those with smaller vessels,
should avoid operating in these conditions.

&&

$$

136 
WHUS72 KKEY 150420
MWWKEY

URGENT - MARINE WEATHER MESSAGE
National Weather Service Key West FL
1220 AM EDT Sun Aug 15 2021

GMZ031-042-052-072-150530-
/O.CAN.KKEY.SC.Y.0028.000000T0000Z-210815T1000Z/
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
Hawk Channel from Ocean Reef to Craig Key out to the reef-
Straits of Florida from Ocean Reef to Craig Key out 20 NM-
Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out-
1220 AM EDT Sun Aug 15 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

Winds have subsided below Small Craft Advisory criteria, however
Small Craft should continue to exercise caution until winds
decrease.

$$

GMZ032>035-043-044-053>055-073>075-151000-
/O.CON.KKEY.SC.Y.0028.000000T0000Z-210815T1000Z/
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 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 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 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-
1220 AM EDT Sun Aug 15 2021

...SMALL CRAFT ADVISORY IN EFFECT...

* WHAT...Southeast winds 20 to 30 knots with occasional gusts 
  near 40 knots in squalls. Seas of 5 to 8 feet along the outer 
  fringes of the Reef and across the Straits of Florida and across
  the deep waters adjacent to the Dry Tortugas.

* WHERE...Straits of Florida, Hawk Channel, Florida Bay and the 
  Gulf waters including the Dry Tortugas.

* WHEN...In Effect.

* IMPACTS...A Small Craft Advisory means that wind speeds of 20 
  to 33 knots, or seas of 7 feet or greater, are expected to 
  produce hazardous conditions for small craft. These hazardous 
  conditions may result in poor vessel handling and steering 
  response, broaching, overturned dinghies and kayaks, slips and 
  falls on slippery decks, rub damage along docks and seawalls, 
  swamped bows at reef tract mooring balls, and dragging anchors.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced boaters, especially those with smaller vessels,
should avoid operating in these conditions.

&&

$$

409 
WHUS72 KKEY 150938
MWWKEY

URGENT - MARINE WEATHER MESSAGE
National Weather Service Key West FL
538 AM EDT Sun Aug 15 2021

GMZ032-043-053-073-151045-
/O.CAN.KKEY.SC.Y.0028.000000T0000Z-210815T1000Z/
Bayside and Gulf side from Craig Key to west end of Seven Mile
Bridge-
Hawk Channel from Craig Key to west end of Seven Mile Bridge out
to the reef-
Straits of Florida from Craig Key to west end of Seven Mile
Bridge out 20 NM-
Straits of Florida from Craig Key to west end of Seven Mile
Bridge 20 to 60 NM out-
538 AM EDT Sun Aug 15 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

Winds have fallen below Small Craft Advisory criteria. However,
small craft should continue to exercise caution until winds and
seas subside.

$$

GMZ033>035-044-054-055-074-075-151700-
/O.EXT.KKEY.SC.Y.0028.000000T0000Z-210815T1700Z/
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 west end of Seven Mile Bridge to Halfmoon Shoal
out to the reef-
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 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-
538 AM EDT Sun Aug 15 2021

...SMALL CRAFT ADVISORY IN EFFECT...

* WHAT...Southeast winds 20 to 25 kt with gusts up to 30 kt. Seas
  5 to 7 feet across the western Straits of Florida and across 
  the deep waters adjacent to the Dry Tortugas..

* WHERE...Lower Straits of Florida, Hawk Channel from west end 
  of Seven Mile Bridge to Halfmoon Shoal, and Gulf waters north 
  of the Lower Keys and beyond 5 fathoms including the Dry 
  Tortugas.

* WHEN...In Effect.

* IMPACTS...A Small Craft Advisory means that wind speeds of 20 
  to 33 knots, or seas of 7 feet or greater, are expected to 
  produce hazardous conditions for small craft. These hazardous 
  conditions may result in poor vessel handling and steering 
  response, broaching, overturned dinghies and kayaks, slips and 
  falls on slippery decks, rub damage along docks and seawalls, 
  swamped bows at reef tract mooring balls, and dragging anchors.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced boaters, especially those with smaller vessels,
should avoid operating in these conditions.

&&

$$

The office that day

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

Issued	Product	Office	Lasted
Aug 14, 11:12 AM EDT	Special Marine Warning	KEY	33 min
Aug 14, 11:39 AM EDT	Special Marine Warning	KEY	36 min
Aug 14, 12:14 PM EDT	Special Marine Warning	KEY	31 min
Aug 14, 12:47 PM EDT	Special Marine Warning	KEY	58 min
Aug 14, 5:06 PM EDT	Special Marine Warning	KEY	54 min
Aug 14, 5:22 PM EDT	Special Marine Warning	KEY	53 min
Aug 14, 5:55 PM EDT	Special Marine Warning	KEY	65 min
Aug 14, 6:02 PM EDT	Special Marine Warning	KEY	58 min
Aug 14, 6:05 PM EDT	Special Marine Warning	KEY	55 min
Aug 14, 6:39 PM EDT	Special Marine Warning	KEY	66 min
Aug 14, 7:50 PM EDT	Special Marine Warning	KEY	55 min

Nearby

Small Craft Advisories in Florida, 2021 Every small craft advisory in 2021

Sources

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