Alert archive / Florida / Small Craft Advisories in 2021

Small Craft Advisory 20, NWS Key West, FL

April 9, 2021

NWS Key West, FL issued this small craft advisory at Apr 9, 2021, 4:39 PM EDT. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Apr 9, 2021, 4:39 PM EDT (20:39 UTC)
Expired
Apr 10, 2021, 4:18 AM EDT
In force
12 hr
Issued by
NWS Key West, FL

The text

As transmitted.

217 
WHUS72 KKEY 092039
MWWKEY

URGENT - MARINE WEATHER MESSAGE
National Weather Service Key West FL
439 PM EDT Fri Apr 9 2021

GMZ052>055-072>075-100445-
/O.NEW.KKEY.SC.Y.0020.210409T2039Z-210410T0900Z/
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-
439 PM EDT Fri Apr 9 2021

...SMALL CRAFT ADVISORY IN EFFECT...

* WHAT...Southeast winds near 20 knots.

* WHERE...Straits of Florida.

* 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.

&&

$$
2 follow-up statements
419 
WHUS72 KKEY 100234
MWWKEY

URGENT - MARINE WEATHER MESSAGE
National Weather Service Key West FL
1034 PM EDT Fri Apr 9 2021

GMZ052>055-072>075-100900-
/O.CON.KKEY.SC.Y.0020.000000T0000Z-210410T0900Z/
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-
1034 PM EDT Fri Apr 9 2021

...SMALL CRAFT ADVISORY IN EFFECT...

* WHAT...Southeast winds near 20 knots.

* WHERE...Straits of Florida.

* 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.

&&

$$
905 
WHUS72 KKEY 100818
MWWKEY

URGENT - MARINE WEATHER MESSAGE
National Weather Service Key West FL
418 AM EDT Sat Apr 10 2021

GMZ052>055-072>075-100930-
/O.CAN.KKEY.SC.Y.0020.000000T0000Z-210410T0900Z/
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-
418 AM EDT Sat Apr 10 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

Small craft should continue to exercise caution across the Straits
of Florida this morning due to southeast winds of 15 to 20 knots.
Winds are forecast to decrease to near 15 knots this afternoon.

$$

Nearby

Small Craft Advisories in Florida, 2021Every 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.