Alert archive / Puerto Rico / Small Craft Advisories in 2023

Small Craft Advisory 21, NWS JSJ

June 21, 2023

NWS JSJ issued this small craft advisory at Jun 21, 2023, 4:02 PM CDT. It took effect at Jun 22, 2023, 5:00 AM CDT. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Jun 21, 2023, 4:02 PM CDT (21:02 UTC)
In effect from
Jun 22, 2023, 5:00 AM CDT
Expired
Jun 22, 2023, 5:00 PM CDT
In force
12 hr
Issued by
NWS JSJ

The text

As transmitted.

004 
WHCA72 TJSJ 212102
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
502 PM AST Wed Jun 21 2023

AMZ712-220515-
/O.NEW.TJSJ.SC.Y.0021.230622T1000Z-230622T2200Z/
Coastal Waters of Northern Puerto Rico out 10 NM-
502 PM AST Wed Jun 21 2023

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM TO 6 PM AST
THURSDAY...

* WHAT...Generally east winds 20 to 25 knots. Seas 3 to 5 feet 
  with occasional seas up to 6 feet.

* WHERE...Coastal Waters of Northern Puerto Rico out 10 NM.

* WHEN...From 6 AM AST Thursday to 6 PM AST Thursday.

* IMPACTS...Dangerous conditions for small craft due to winds.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas greater than 7 feet are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ711-723-733-220515-
/O.NEW.TJSJ.SC.Y.0022.230623T0600Z-230624T0600Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
502 PM AST Wed Jun 21 2023

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM FRIDAY TO 2 AM AST
SATURDAY...

* WHAT...Over the southern offshore waters and Anegada Passage: 
 Winds 20 to 25 knots. Seas 6 to 8 feet with occasional seas up to
10 feet. Over the northern offshore waters: winds 15 to 20 knots
with gusts up to 25 knots. Seas 5 to 7 feet with occasional seas
up to 9 feet. 

* WHERE...Northern and southern offshore waters and the Anegada
  Passage. 

* WHEN...From 6 AM AST Thursday to 6 PM AST Thursday.

* IMPACTS...Dangerous conditions for small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas greater than 7 feet are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$
3 follow-up statements
763 
WHCA72 TJSJ 220149
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
949 PM AST Wed Jun 21 2023

AMZ712-221000-
/O.CON.TJSJ.SC.Y.0021.230622T1000Z-230622T2200Z/
Coastal Waters of Northern Puerto Rico out 10 NM-
949 PM AST Wed Jun 21 2023

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM TO 6 PM AST
THURSDAY...

* WHAT...Generally east winds 20 to 25 knots. Seas 3 to 5 feet 
  with occasional seas up to 6 feet. 

* WHERE...Coastal Waters of Northern Puerto Rico out 10 NM.

* WHEN...From 6 AM AST Thursday to 6 PM AST Thursday.

* IMPACTS...Dangerous conditions for small craft due to winds.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas greater than 7 feet are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ711-723-733-221000-
/O.CON.TJSJ.SC.Y.0022.230623T0600Z-230624T0600Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
949 PM AST Wed Jun 21 2023

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 AM FRIDAY TO
2 AM AST SATURDAY...

* WHAT...Over the southern offshore waters and Anegada Passage: 
  Winds 20 to 25 knots. Seas 6 to 8 feet with occasional seas up 
  to 10 feet. Over the northern offshore waters: winds 15 to 20 
  knots with gusts up to 25 knots. Seas 5 to 7 feet with 
  occasional seas up to 9 feet. 

* WHERE...Northern and southern offshore waters and the Anegada 
  Passage. 

* WHEN...From 6 AM AST Thursday to 6 PM AST Thursday.

* IMPACTS...Dangerous conditions for small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas greater than 7 feet are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$
293 
WHCA72 TJSJ 220926
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
526 AM AST Thu Jun 22 2023

AMZ741-221730-
/O.EXB.TJSJ.SC.Y.0022.230623T0000Z-230624T0600Z/
Mona Passage Southward to 17N-
526 AM AST Thu Jun 22 2023

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 2 AM
AST SATURDAY...

* WHAT...Winds of 20 to 25 knots, with gusts of up to 30 to 35
  knots, and seas of 5 to 8 feet and occasionally up to 10 feet.

* WHERE...Mona Passage.

* WHEN...From 8 PM AST Thursday through 2 AM AST Saturday.

* IMPACTS...Dangerous conditions for small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas greater than 7 feet are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ726-735-221730-
/O.EXB.TJSJ.SC.Y.0022.230623T1200Z-230624T0600Z/
Coastal waters east of Puerto Rico, around Vieques, and around
and just north of Culebra and Saint John-
Coastal Waters of Southern Puerto Rico out 10 NM-
526 AM AST Thu Jun 22 2023

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM FRIDAY TO 2 AM AST
SATURDAY...

* WHAT...Seas of 5 to 8 feet and occasionally up to 10 feet, winds
  of 20 to 25 knots with gusts of up to 30 to 35 knots.

* WHERE...Coastal waters of southern Puerto Rico out 10 NM and
  coastal waters east of Puerto Rico around Vieques, Culebra, and
  south of the northern USVI.

* WHEN...From 8 AM AST Friday through 2 AM AST Saturday.

* IMPACTS...Dangerous conditions for small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas greater than 7 feet are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ742-221730-
/O.EXB.TJSJ.SC.Y.0022.230623T1800Z-230624T0000Z/
Coastal Waters of Northwestern Puerto Rico out 10 NM-
526 AM AST Thu Jun 22 2023

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM TO 8 PM AST FRIDAY...

* WHAT...Winds of 20 to 25 knots with gusts of up to 30 to 35
  knots.

* WHERE...Coastal waters of northwestern Puerto Rico out 10 NM.

* WHEN...From 2 PM AST to 8 PM AST Friday.

* IMPACTS...Dangerous conditions for small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas greater than 7 feet are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ711-723-733-221730-
/O.EXT.TJSJ.SC.Y.0022.230623T0000Z-230624T0600Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
526 AM AST Thu Jun 22 2023

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 8 PM THIS EVENING TO
2 AM AST SATURDAY...

* WHAT...Winds of 20 to 25 knots, with gusts of up to 30 to 35
  knots, seas of 5 to 8 feet and occasionally up to 10 feet.

* WHERE...Offshore Atlantic and Caribbean waters and the Anegada
  Passage.

* WHEN...From 8 PM Thursday through 2 AM AST Saturday.

* IMPACTS...Dangerous conditions for small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas greater than 7 feet are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ712-221730-
/O.CON.TJSJ.SC.Y.0021.230622T1000Z-230622T2200Z/
Coastal Waters of Northern Puerto Rico out 10 NM-
526 AM AST Thu Jun 22 2023

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM AST THIS
EVENING...

* WHAT...Generally east winds 20 to 25 knots. Seas 3 to 5 feet 
  with occasional seas up to 6 feet. 

* WHERE...Coastal Waters of Northern Puerto Rico out 10 NM.

* WHEN...From 6 AM AST Thursday to 6 PM AST Thursday.

* IMPACTS...Dangerous conditions for small craft due to winds.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas greater than 7 feet are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$
600 
WHCA72 TJSJ 222105
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
505 PM AST Thu Jun 22 2023

AMZ712-230515-
/O.CON.TJSJ.SC.Y.0021.000000T0000Z-230622T2200Z/
/O.EXB.TJSJ.SC.Y.0022.230623T1200Z-230624T0000Z/
Coastal Waters of Northern Puerto Rico out 10 NM-
505 PM AST Thu Jun 22 2023

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM AST THIS
EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM TO 8 PM AST FRIDAY...

* WHAT...Seas of 5 to 8 feet and occasionally up to 10 feet, 
  winds of 20 to 25 knots with gusts of up to 30 to 35 knots. 

* WHERE...Coastal Waters of Northern Puerto Rico out 10 NM.

* WHEN...Through 6 PM AST this evening, and then from 8 AM AST to
  8 PM AST on Friday.

* IMPACTS...Dangerous conditions for small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas greater than 7 feet are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ711-723-733-741-230515-
/O.CON.TJSJ.SC.Y.0022.230623T0000Z-230624T0600Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-Mona Passage Southward to 17N-
505 PM AST Thu Jun 22 2023

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING
TO 2 AM AST SATURDAY...

* WHAT...Winds of 20 to 25 knots, with gusts of up to 30 to 35
  knots and seas of 5 to 8 feet and occasionally up to 10 feet. 

* WHERE...Offshore Atlantic and Caribbean waters and the local
  Passages.

* WHEN...From 8 PM Thursday through 2 AM AST Saturday.

* IMPACTS...Dangerous conditions for small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas greater than 7 feet are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ726-735-230515-
/O.CON.TJSJ.SC.Y.0022.230623T1200Z-230624T0600Z/
Coastal waters east of Puerto Rico, around Vieques, and around
and just north of Culebra and Saint John-
Coastal Waters of Southern Puerto Rico out 10 NM-
505 PM AST Thu Jun 22 2023

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM FRIDAY TO
2 AM AST SATURDAY...

* WHAT...Seas of 5 to 8 feet and occasionally up to 10 feet, 
  winds of 20 to 25 knots with gusts of up to 30 to 35 knots. 

* WHERE...Coastal waters of southern Puerto Rico out 10 NM and
  Coastal waters east of Puerto Rico, around Vieques, and around
  and just north of Culebra and Saint John. 

* WHEN...From 8 AM AST Friday through 2 AM AST Saturday.

* IMPACTS...Dangerous conditions for small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas greater than 7 feet are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ742-230515-
/O.CON.TJSJ.SC.Y.0022.230623T1800Z-230624T0000Z/
Coastal Waters of Northwestern Puerto Rico out 10 NM-
505 PM AST Thu Jun 22 2023

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 PM TO 8 PM AST
FRIDAY...

* WHAT...Winds of 20 to 25 knots with gusts of up to 30 to 35 
  knots. 

* WHERE...Coastal waters of northwestern Puerto Rico out 10 NM.

* WHEN...From 2 PM AST to 8 PM AST Friday.

* IMPACTS...Dangerous conditions for small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas greater than 7 feet are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

The office that day

Everything else NWS JSJ issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 21, 3:51 AM CDTExcessive Heat WarningJSJ12 hr
Jun 21, 3:51 AM CDTHeat AdvisoryJSJ12 hr
Jun 21, 4:02 PM CDTSmall Craft AdvisoryJSJ3 days

Nearby

Small Craft Advisories in Puerto Rico, 2023Every small craft advisory in 2023

Sources

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