Alert archive / Puerto Rico / Small Craft Advisories in 2021

Small Craft Advisory 18, NWS JSJ

March 21, 2021

NWS JSJ issued this small craft advisory at Mar 21, 2021, 3:53 AM CDT. It took effect at Mar 22, 2021, 1:00 AM CDT. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Mar 21, 2021, 3:53 AM CDT (08:53 UTC)
In effect from
Mar 22, 2021, 1:00 AM CDT
Expired
Mar 22, 2021, 1:00 PM CDT
In force
12 hr
Issued by
NWS JSJ

The text

As transmitted.

917 
WHCA72 TJSJ 210853
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
453 AM AST Sun Mar 21 2021

AMZ710-211700-
/O.NEW.TJSJ.SC.Y.0018.210322T1200Z-210322T1800Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
453 AM AST Sun Mar 21 2021

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

* WHAT...Seas 6 to 7 feet expected.

* WHERE...Atlantic Waters of Puerto Rico and USVI from 10 NM to 
  19.5N.

* WHEN...From 8 AM to 2 PM AST Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
5 follow-up statements
958 
WHCA72 TJSJ 211425
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
1025 AM AST Sun Mar 21 2021

AMZ710-212230-
/O.CON.TJSJ.SC.Y.0018.210322T1200Z-210322T1800Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
1025 AM AST Sun Mar 21 2021

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

* WHAT...Seas 5 to 7 feet expected.

* WHERE...Atlantic Waters of Puerto Rico and USVI from 10 NM to 
  19.5N.

* WHEN...From 8 AM to 2 PM AST Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
654 
WHCA72 TJSJ 212006
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
406 PM AST Sun Mar 21 2021

AMZ710-220415-
/O.EXT.TJSJ.SC.Y.0018.210322T0600Z-210322T1800Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
406 PM AST Sun Mar 21 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 2 AM TO 2 PM AST
MONDAY...

* WHAT...Seas 5 to 7 feet expected.

* WHERE...Atlantic Waters of Puerto Rico and USVI from 10 NM to 
  19.5N.

* WHEN...From 2 AM to 2 PM AST Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
227 
WHCA72 TJSJ 220104
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
904 PM AST Sun Mar 21 2021

AMZ710-221000-
/O.CON.TJSJ.SC.Y.0018.210322T0600Z-210322T1800Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
904 PM AST Sun Mar 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 AM TO 2 PM AST
MONDAY...

* WHAT...Seas 5 to 7 feet expected.

* WHERE...Atlantic Waters of Puerto Rico and USVI from 10 NM to 
  19.5N.

* WHEN...From 2 AM to 2 PM AST Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
665 
WHCA72 TJSJ 220802
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
402 AM AST Mon Mar 22 2021

AMZ710-221615-
/O.CON.TJSJ.SC.Y.0018.000000T0000Z-210322T1800Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
402 AM AST Mon Mar 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM AST THIS
AFTERNOON...

* WHAT...Seas 5 to 7 feet expected.

* WHERE...Atlantic Waters of Puerto Rico and USVI from 10 NM to 
  19.5N.

* WHEN...Until 2 PM AST this afternoon.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
845 
WHCA72 TJSJ 221428
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
1028 AM AST Mon Mar 22 2021

AMZ710-221800-
/O.CON.TJSJ.SC.Y.0018.000000T0000Z-210322T1800Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
1028 AM AST Mon Mar 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM AST THIS
AFTERNOON...

* WHAT...Seas 5 to 7 feet expected.

* WHERE...Atlantic Waters of Puerto Rico and USVI from 10 NM to 
  19.5N.

* WHEN...Until 2 PM AST this afternoon.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

The office that day

Everything else NWS JSJ issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 21, 4:06 AM CDTRip Current StatementJSJ61 hr
Mar 21, 2:24 PM CDTSpecial Weather StatementJSJ6 min

Nearby

Small Craft Advisories in Puerto Rico, 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.