Alert archive / Puerto Rico / Small Craft Advisories in 2021

Small Craft Advisory 24, NWS JSJ

May 21, 2021

NWS JSJ issued this small craft advisory at May 21, 2021, 8:33 PM CDT. It took effect at May 23, 2021, 1:00 AM CDT. It was in force for 30 hr.

The area

The counties it named.

The facts

Issued
May 21, 2021, 8:33 PM CDT (01:33 UTC)
In effect from
May 23, 2021, 1:00 AM CDT
Expired
May 24, 2021, 7:00 AM CDT
In force
30 hr
Issued by
NWS JSJ

The text

As transmitted.

670 
WHCA72 TJSJ 220133
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
933 PM AST Fri May 21 2021

AMZ710-220945-
/O.NEW.TJSJ.SC.Y.0024.210523T0600Z-210524T1200Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
933 PM AST Fri May 21 2021

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

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

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

* WHEN...From 2 AM Sunday to 8 AM 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.

&&

$$
11 follow-up statements
323 
WHCA72 TJSJ 220721
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
321 AM AST Sat May 22 2021

AMZ710-221530-
/O.CON.TJSJ.SC.Y.0024.210523T0600Z-210524T1200Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
321 AM AST Sat May 22 2021

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

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

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

* WHEN...From 2 AM Sunday to 8 AM 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.

&&

$$
211 
WHCA72 TJSJ 221349
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
949 AM AST Sat May 22 2021

AMZ712-222200-
/O.EXB.TJSJ.SC.Y.0024.210523T0600Z-210524T0600Z/
Coastal Waters of Northern Puerto Rico out 10 NM-
949 AM AST Sat May 22 2021

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

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

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

* WHEN...From 2 AM Sunday to 2 AM 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.

&&

$$

AMZ710-222200-
/O.CON.TJSJ.SC.Y.0024.210523T0600Z-210524T1200Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
949 AM AST Sat May 22 2021

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

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

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

* WHEN...From 2 AM Sunday to 8 AM 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.

&&

$$
844 
WHCA72 TJSJ 222048
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
448 PM AST Sat May 22 2021

AMZ712-230500-
/O.CON.TJSJ.SC.Y.0024.210523T0600Z-210524T0600Z/
Coastal Waters of Northern Puerto Rico out 10 NM-
448 PM AST Sat May 22 2021

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

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

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

* WHEN...From 2 AM Sunday to 2 AM 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.

&&

$$

AMZ710-230500-
/O.CON.TJSJ.SC.Y.0024.210523T0600Z-210524T1200Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
448 PM AST Sat May 22 2021

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

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

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

* WHEN...From 2 AM Sunday to 8 AM 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.

&&

$$
483 
WHCA72 TJSJ 230113
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
913 PM AST Sat May 22 2021

AMZ712-230915-
/O.CON.TJSJ.SC.Y.0024.210523T0600Z-210524T0600Z/
Coastal Waters of Northern Puerto Rico out 10 NM-
913 PM AST Sat May 22 2021

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

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

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

* WHEN...From 2 AM Sunday to 2 AM 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.

&&

$$

AMZ710-230915-
/O.CON.TJSJ.SC.Y.0024.210523T0600Z-210524T1200Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
913 PM AST Sat May 22 2021

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

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

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

* WHEN...From 2 AM Sunday to 8 AM 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.

&&

$$
327 
WHCA72 TJSJ 231012
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
612 AM AST Sun May 23 2021

AMZ712-231815-
/O.CON.TJSJ.SC.Y.0024.000000T0000Z-210524T0600Z/
Coastal Waters of Northern Puerto Rico out 10 NM-
612 AM AST Sun May 23 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM AST MONDAY...

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

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

* WHEN...From 2 AM Sunday to 2 AM 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.

&&

$$

AMZ710-231815-
/O.CON.TJSJ.SC.Y.0024.000000T0000Z-210524T1200Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
612 AM AST Sun May 23 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM AST MONDAY...

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

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

* WHEN...From 2 AM Sunday to 8 AM 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.

&&

$$
032 
WHCA72 TJSJ 231424
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
1024 AM AST Sun May 23 2021

AMZ715-232230-
/O.EXB.TJSJ.SC.Y.0024.210523T2200Z-210524T1200Z/
Coastal Waters of Northern USVI and Culebra out 10 NM-
1024 AM AST Sun May 23 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 8 AM
AST MONDAY...

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

* WHERE...Coastal Waters of Northern USVI and Culebra out 10 NM.

* WHEN...From 6 PM this evening to 8 AM 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.

&&

$$

AMZ742-232230-
/O.EXB.TJSJ.SC.Y.0024.210523T2200Z-210524T0600Z/
Coastal Waters of Northwestern Puerto Rico out 10 NM-
1024 AM AST Sun May 23 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 2 AM
AST MONDAY...

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

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

* WHEN...From 6 PM this evening to 2 AM 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.

&&

$$

AMZ741-232230-
/O.EXA.TJSJ.SC.Y.0024.000000T0000Z-210524T1200Z/
Mona Passage Southward to 17N-
1024 AM AST Sun May 23 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM AST MONDAY...

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

* WHERE...Mona Passage Southward to 17N.

* WHEN...Until 8 AM 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.

&&

$$

AMZ712-232230-
/O.EXT.TJSJ.SC.Y.0024.000000T0000Z-210524T1200Z/
Coastal Waters of Northern Puerto Rico out 10 NM-
1024 AM AST Sun May 23 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 8 AM AST MONDAY...

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

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

* WHEN...Until 8 AM 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.

&&

$$

AMZ710-232230-
/O.CON.TJSJ.SC.Y.0024.000000T0000Z-210524T1200Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
1024 AM AST Sun May 23 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM AST MONDAY...

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

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

* WHEN...Until 8 AM 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.

&&

$$
558 
WHCA72 TJSJ 232007
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
407 PM AST Sun May 23 2021

AMZ710-712-741-241000-
/O.CON.TJSJ.SC.Y.0024.000000T0000Z-210524T1200Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
Coastal Waters of Northern Puerto Rico out 10 NM-
Mona Passage Southward to 17N-
407 PM AST Sun May 23 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM AST MONDAY...

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

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

* WHEN...Until 8 AM 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.

&&

$$

AMZ715-241000-
/O.CON.TJSJ.SC.Y.0024.210523T2200Z-210524T1200Z/
Coastal Waters of Northern USVI and Culebra out 10 NM-
407 PM AST Sun May 23 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM AST MONDAY...

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

* WHERE...Coastal Waters of Northern USVI and Culebra out 10 NM.

* WHEN...From 6 PM this evening to 8 AM 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.

&&

$$

AMZ742-240600-
/O.CON.TJSJ.SC.Y.0024.210523T2200Z-210524T0600Z/
Coastal Waters of Northwestern Puerto Rico out 10 NM-
407 PM AST Sun May 23 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM AST MONDAY...

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

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

* WHEN...From 6 PM this evening to 2 AM 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.

&&

$$
658 
WHCA72 TJSJ 232019 CCA
MWWSJU

URGENT - MARINE WEATHER MESSAGE...CORRECTED
National Weather Service San Juan PR
419 PM AST Sun May 23 2021

AMZ710-712-741-241000-
/O.COR.TJSJ.SC.Y.0024.000000T0000Z-210524T1200Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
Coastal Waters of Northern Puerto Rico out 10 NM-
Mona Passage Southward to 17N-
419 PM AST Sun May 23 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM AST MONDAY...

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

* WHERE...Nearshore and offshore local Atlantic waters, as well 
  as the Mona Passage. 

* WHEN...Until 8 AM 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.

&&

$$

AMZ715-241000-
/O.COR.TJSJ.SC.Y.0024.210523T2200Z-210524T1200Z/
Coastal Waters of Northern USVI and Culebra out 10 NM-
419 PM AST Sun May 23 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM AST MONDAY...

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

* WHERE...Coastal Waters of Northern USVI and Culebra out 10 NM.

* WHEN...Until 8 AM 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.

&&

$$

AMZ742-240600-
/O.COR.TJSJ.SC.Y.0024.210523T2200Z-210524T0600Z/
Coastal Waters of Northwestern Puerto Rico out 10 NM-
419 PM AST Sun May 23 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM AST MONDAY...

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

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

* WHEN...Until 2 AM 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.

&&

$$
431 
WHCA72 TJSJ 240126
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
926 PM AST Sun May 23 2021

AMZ742-240230-
/O.CAN.TJSJ.SC.Y.0024.000000T0000Z-210524T0600Z/
Coastal Waters of Northwestern Puerto Rico out 10 NM-
926 PM AST Sun May 23 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

Hazardous conditions are no longer expected. Operators of small 
craft should still exercise caution, as seas of up to 6 feet are 
still anticipated.

$$

AMZ715-240230-
/O.CAN.TJSJ.SC.Y.0024.000000T0000Z-210524T1200Z/
Coastal Waters of Northern USVI and Culebra out 10 NM-
926 PM AST Sun May 23 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

Hazardous conditions are no longer expected. Operators of small 
craft should still exercise caution, as seas of up to 6 feet are 
still anticipated.

$$

AMZ710-712-741-241000-
/O.CON.TJSJ.SC.Y.0024.000000T0000Z-210524T1200Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
Coastal Waters of Northern Puerto Rico out 10 NM-
Mona Passage Southward to 17N-
926 PM AST Sun May 23 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM AST MONDAY...

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

* WHERE...Nearshore and offshore local Atlantic waters, as well 
  as the Mona Passage.

* WHEN...Until 8 AM 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.

&&

$$
084 
WHCA72 TJSJ 240132 AAA
MWWSJU

URGENT - MARINE WEATHER MESSAGE...UPDATED
National Weather Service San Juan PR
932 PM AST Sun May 23 2021

AMZ710-712-741-241000-
/O.CON.TJSJ.SC.Y.0024.000000T0000Z-210524T1200Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
Coastal Waters of Northern Puerto Rico out 10 NM-
Mona Passage Southward to 17N-
932 PM AST Sun May 23 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM AST MONDAY...

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

* WHERE...Nearshore and offshore local Atlantic waters, as well 
  as the Mona Passage.

* WHEN...Until 8 AM 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.

&&

$$
082 
WHCA72 TJSJ 240827
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
427 AM AST Mon May 24 2021

AMZ710-712-741-241200-
/O.CON.TJSJ.SC.Y.0024.000000T0000Z-210524T1200Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
Coastal Waters of Northern Puerto Rico out 10 NM-
Mona Passage Southward to 17N-
427 AM AST Mon May 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM AST THIS
MORNING...

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

* WHERE...Nearshore and offshore local Atlantic waters, as well 
  as the Mona Passage.

* WHEN...Until 8 AM 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.

&&

$$

The office that day

Everything else NWS JSJ issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 22, 12:13 PM CDTSpecial Weather StatementJSJ47 min
May 22, 12:27 PM CDTAreal Flood AdvisoryJSJ92 min
May 22, 12:53 PM CDTSpecial Weather StatementJSJ52 min
May 22, 1:16 PM CDTAreal Flood AdvisoryJSJ119 min
May 22, 1:29 PM CDTAreal Flood AdvisoryJSJ2 hr
May 22, 1:34 PM CDTSpecial Weather StatementJSJ56 min
May 22, 2:01 PM CDTAreal Flood AdvisoryJSJ112 min
May 22, 2:09 PM CDTSpecial Weather StatementJSJ66 min
May 22, 3:01 PM CDTSevere Thunderstorm WarningJSJ29 min
May 22, 3:18 PM CDTAreal Flood AdvisoryJSJ100 min
May 22, 3:57 PM CDTAreal Flood AdvisoryJSJ63 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.