Alert archive / Florida / Small Craft Advisories in 2021

Small Craft Advisory 32, NWS Key West, FL

August 26, 2021

NWS Key West, FL issued this small craft advisory at Aug 26, 2021, 9:49 PM EDT. It was in force for 43 hr.

The area

The counties it named.

The facts

Issued: Aug 26, 2021, 9:49 PM EDT (01:49 UTC)
Expired: Aug 28, 2021, 5:00 PM EDT
In force: 43 hr
Issued by: NWS Key West, FL

The text

As transmitted.

156 
WHUS72 KKEY 270149
MWWKEY

URGENT - MARINE WEATHER MESSAGE
National Weather Service Key West FL
949 PM EDT Thu Aug 26 2021

GMZ033>035-044-054-055-074-075-270900-
/O.NEW.KKEY.SC.Y.0032.210827T0149Z-210827T1200Z/
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-
949 PM EDT Thu Aug 26 2021

...SMALL CRAFT ADVISORY IN EFFECT...

* WHAT...East winds near 20 knots with gusts up to 25 kt.

* 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.

&&

$$

6 follow-up statements

209 
WHUS72 KKEY 270948
MWWKEY

URGENT - MARINE WEATHER MESSAGE
National Weather Service Key West FL
548 AM EDT Fri Aug 27 2021

GMZ055-075-271600-
/O.CAN.KKEY.SC.Y.0032.000000T0000Z-210827T1200Z/
/O.NEW.KKEY.TR.W.1009.210827T0948Z-000000T0000Z/
Straits of Florida from Halfmoon Shoal to 20 NM west of Dry
Tortugas out 20 NM-
Straits of Florida from Halfmoon Shoal to 20 NM west of Dry
Tortugas 20 to 60 NM out-
548 AM EDT Fri Aug 27 2021

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

* WHAT...East to southeast winds increasing to 30 to 35 knots with
  frequent gusts around 45 knots. Seas building to 7 to 11 feet.

* WHERE...Straits of Florida from Halfmoon Shoal to 20 NM west of
  Dry Tortugas out 60 NM.

* WHEN...In Effect.

* IMPACTS...A Tropical Storm Warning means that sustained winds 
  of 34 to 63 knots associated with a tropical storm are 
  expected within 36 hours.

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.

&&

$$

GMZ032-043-053-073-271600-
/O.EXB.KKEY.SC.Y.0032.000000T0000Z-210828T1000Z/
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-
548 AM EDT Fri Aug 27 2021

...SMALL CRAFT ADVISORY IN EFFECT...

* WHAT...East to southeast winds increasing to 20 to 25 knots with
  occasional gusts to 35 knots. Seas building to 8 feet in the
  Straits of Florida. 

* WHERE...Bayside and Gulf side, Hawk Channel and Straits of 
  Florida from Craig Key to west end of Seven Mile Bridge out 60 
  NM.

* 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>035-044-054-074-271600-
/O.EXT.KKEY.SC.Y.0032.000000T0000Z-210828T1000Z/
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 west end of Seven Mile Bridge to south of
Halfmoon Shoal 20 to 60 NM out-
548 AM EDT Fri Aug 27 2021

...SMALL CRAFT ADVISORY IN EFFECT...

* WHAT...East to southeast winds increasing to 20 to 30 knots with
  occasional gusts up to 40 knots. Seas building to 7 feet in
  western sections of the nearshore Gulf waters and Hawk Channel,
  and up to 10 feet in the Straits of Florida and the deep Gulf 
  waters around the Dry Tortugas.

* WHERE...Hawk Channel from west end of Seven Mile Bridge to
  Halfmoon Shoal, Gulf waters north of the Lower Keys and beyond 5
  fathoms including the Dry Tortugas, Straits of Florida from west
  end of Seven Mile Bridge to south of Halfmoon Shoal out 60 NM.

* 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.

&&

$$

891 
WHUS72 KKEY 271625
MWWKEY

URGENT - MARINE WEATHER MESSAGE
National Weather Service Key West FL
1225 PM EDT Fri Aug 27 2021

GMZ055-075-280030-
/O.CON.KKEY.TR.W.1009.000000T0000Z-000000T0000Z/
Straits of Florida from Halfmoon Shoal to 20 NM west of Dry
Tortugas out 20 NM-
Straits of Florida from Halfmoon Shoal to 20 NM west of Dry
Tortugas 20 to 60 NM out-
1225 PM EDT Fri Aug 27 2021

...TROPICAL STORM WARNING IN EFFECT...

* WHAT...East to southeast winds increasing to 30 to 35 knots 
  with frequent gusts around 45 knots. Seas building to 7 to 11 
  feet.

* WHERE...Straits of Florida from Halfmoon Shoal to 20 NM west 
  of Dry Tortugas out 60 NM.

* WHEN...In Effect.

* IMPACTS...A Tropical Storm Warning means that sustained winds 
  of 34 to 63 knots associated with a tropical storm are 
  expected within 36 hours.

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.

&&

$$

GMZ032>035-043-044-053-054-073-074-280030-
/O.CON.KKEY.SC.Y.0032.000000T0000Z-210828T1000Z/
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 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-
1225 PM EDT Fri Aug 27 2021

...SMALL CRAFT ADVISORY IN EFFECT...

* WHAT...East to southeast winds increasing to 20 to 30 knots 
  with occasional gusts up to 40 knots. Seas building to 7 feet 
  in western sections of the nearshore Gulf waters and Hawk 
  Channel, and up to 10 feet in the Straits of Florida and the 
  deep Gulf waters around the Dry Tortugas.

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

* 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.

&&

$$

704 
WHUS72 KKEY 272216
MWWKEY

URGENT - MARINE WEATHER MESSAGE
National Weather Service Key West FL
616 PM EDT Fri Aug 27 2021

GMZ055-075-280630-
/O.CON.KKEY.TR.W.1009.000000T0000Z-000000T0000Z/
Straits of Florida from Halfmoon Shoal to 20 NM west of Dry
Tortugas out 20 NM-
Straits of Florida from Halfmoon Shoal to 20 NM west of Dry
Tortugas 20 to 60 NM out-
616 PM EDT Fri Aug 27 2021

...TROPICAL STORM WARNING IN EFFECT...

* WHAT...East to southeast winds increasing to 30 to 35 knots 
  with frequent gusts around 45 knots. Seas building to 7 to 11 
  feet.

* WHERE...Straits of Florida from Halfmoon Shoal to 20 NM west 
  of Dry Tortugas out 60 NM.

* WHEN...In Effect.

* IMPACTS...A Tropical Storm Warning means that sustained winds 
  of 34 to 63 knots associated with a tropical storm are 
  expected within 36 hours.

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.

&&

$$

GMZ032>035-043-044-053-054-073-074-280630-
/O.CON.KKEY.SC.Y.0032.000000T0000Z-210828T1000Z/
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 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-
616 PM EDT Fri Aug 27 2021

...SMALL CRAFT ADVISORY IN EFFECT...

* WHAT...East to southeast winds increasing to 20 to 30 knots 
  with occasional gusts up to 40 knots. Seas building to 7 feet 
  in western sections of the nearshore Gulf waters and Hawk 
  Channel, and up to 10 feet in the Straits of Florida and the 
  deep Gulf waters around the Dry Tortugas.

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

* 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.

&&

$$

309 
WHUS72 KKEY 280337
MWWKEY

URGENT - MARINE WEATHER MESSAGE
National Weather Service Key West FL
1137 PM EDT Fri Aug 27 2021

GMZ055-075-281145-
/O.CON.KKEY.TR.W.1009.000000T0000Z-000000T0000Z/
Straits of Florida from Halfmoon Shoal to 20 NM west of Dry
Tortugas out 20 NM-
Straits of Florida from Halfmoon Shoal to 20 NM west of Dry
Tortugas 20 to 60 NM out-
1137 PM EDT Fri Aug 27 2021

...TROPICAL STORM WARNING IN EFFECT...

* WHAT...East to southeast winds 30 to 40 knots with frequent
  gusts around 45 knots. Seas 7 to 11 feet.

* WHERE...Straits of Florida from Halfmoon Shoal to 20 NM west 
  of Dry Tortugas out 60 NM.

* WHEN...In Effect.

* IMPACTS...A Tropical Storm Warning means that sustained winds 
  of 34 to 63 knots associated with a tropical storm are 
  expected within 36 hours.

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.

&&

$$

GMZ032>035-043-044-053-054-073-074-281000-
/O.CON.KKEY.SC.Y.0032.000000T0000Z-210828T1000Z/
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 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-
1137 PM EDT Fri Aug 27 2021

...SMALL CRAFT ADVISORY IN EFFECT...

* WHAT...East to southeast winds increasing to 20 to 30 knots with
  occasional gusts up to 40 knots. Seas to 7 feet in western 
  sections of the nearshore Gulf waters and Hawk Channel, and up 
  to 10 feet in the Straits of Florida and the deep Gulf waters 
  around the Dry Tortugas.

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

* 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.

&&

$$

195 
WHUS72 KKEY 280858
MWWKEY

URGENT - MARINE WEATHER MESSAGE
National Weather Service Key West FL
458 AM EDT Sat Aug 28 2021

GMZ055-075-281600-
/O.CAN.KKEY.TR.W.1009.000000T0000Z-000000T0000Z/
/O.EXB.KKEY.SC.Y.0032.000000T0000Z-210828T2100Z/
Straits of Florida from Halfmoon Shoal to 20 NM west of Dry
Tortugas out 20 NM-
Straits of Florida from Halfmoon Shoal to 20 NM west of Dry
Tortugas 20 to 60 NM out-
458 AM EDT Sat Aug 28 2021

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

* WHAT...Southeast winds 25 to 30 knots early, decreasing to near
  25 knots during the morning, then decreasing to near 20 knots in
  the afternoon. Seas 7 to 11 feet, subsiding to 5 to 8 feet in
  the afternoon.

* WHERE...Straits of Florida from Halfmoon Shoal to 20 NM west of
  Dry Tortugas out 60 NM.

* 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.

&&

$$

GMZ032>035-043-044-053-054-073-074-281600-
/O.EXT.KKEY.SC.Y.0032.000000T0000Z-210828T2100Z/
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 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-
458 AM EDT Sat Aug 28 2021

...SMALL CRAFT ADVISORY IN EFFECT...

* WHAT...Southeast winds 20 to 25 knots early, decreasing to near
  20 knots during the morning, then decreasing to 15 to 20 knots 
  in the afternoon. Seas 5 to 10 feet, subsiding to 3 to 6 feet 
  during the afternoon.

* WHERE...Straits of Florida from Craig Key to Halfmoon Shoal 
  out 60 nm, Hawk Channel from Craig Key to Halfmoon Shoal, and 
  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.

&&

$$

469 
WHUS72 KKEY 281504
MWWKEY

URGENT - MARINE WEATHER MESSAGE
National Weather Service Key West FL
1104 AM EDT Sat Aug 28 2021

GMZ032-043-053-073-281615-
/O.CAN.KKEY.SC.Y.0032.000000T0000Z-210828T2100Z/
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-
1104 AM EDT Sat Aug 28 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

Small craft should exercise caution across all Gulf and Atlantic 
waters to the east of Seven Mile Bridge this afternoon, due to 
east to southeast winds of 15 to 20 knots, and seas up to 6 feet 
in the Straits of Florida.

$$

GMZ033>035-044-054-055-074-075-282100-
/O.CON.KKEY.SC.Y.0032.000000T0000Z-210828T2100Z/
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-
1104 AM EDT Sat Aug 28 2021

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

* WHAT...Southeast winds 20 to 25 knots early, decreasing to 15 to
  20 knots in the afternoon. Seas 4 to 8 feet, subsiding to 3 to 
  6 feet during the afternoon. 

* WHERE...Straits of Florida from Craig Key to Halfmoon Shoal 
  out 60 nm, Hawk Channel from Craig Key to Halfmoon Shoal, and 
  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.

&&

$$

The office that day

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

Issued	Product	Office	Lasted
Aug 27, 5:48 AM EDT	Tropical Storm Warning	KEY	23 hr
Aug 27, 10:04 AM EDT	Special Marine Warning	KEY	56 min
Aug 27, 10:58 AM EDT	Special Marine Warning	KEY	62 min
Aug 27, 1:39 PM EDT	Special Marine Warning	KEY	51 min
Aug 27, 1:39 PM EDT	Special Marine Warning	KEY	21 min
Aug 27, 2:27 PM EDT	Special Marine Warning	KEY	63 min
Aug 27, 4:21 PM EDT	Special Marine Warning	KEY	54 min
Aug 27, 5:08 PM EDT	Special Marine Warning	KEY	52 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.