Alert archive / Puerto Rico / Small Craft Advisories in 2021

Small Craft Advisory 34, NWS JSJ

August 15, 2021

NWS JSJ issued this small craft advisory at Aug 15, 2021, 4:15 PM CDT. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued
Aug 15, 2021, 4:15 PM CDT (21:15 UTC)
Expired
Aug 16, 2021, 3:33 AM CDT
In force
11 hr
Issued by
NWS JSJ

The text

As transmitted.

717 
WHCA72 TJSJ 152115
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
515 PM AST Sun Aug 15 2021

AMZ732-735-741-742-745-160515-
/O.CAN.TJSJ.TR.W.1007.000000T0000Z-000000T0000Z/
/O.NEW.TJSJ.SC.Y.0034.210815T2115Z-210816T0600Z/
Caribbean Waters of Puerto Rico from 10 NM to 17N-
Coastal Waters of Southern Puerto Rico out 10 NM-
Mona Passage Southward to 17N-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
515 PM AST Sun Aug 15 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM AST MONDAY...
...TROPICAL STORM WARNING IS CANCELLED...

* WHAT...East winds between 20 to 30 knots with gusts to around 45
  knots easing to 15 to 20 knots after midnight. Seas 6 to 8 feet
  with occasional seas up to 10 feet.

* WHERE...Caribbean Waters of Puerto Rico from 10 NM to 17N, 
  Coastal Waters of Southern Puerto Rico out 10 NM, Mona Passage 
  Southward to 17N, Coastal Waters of Northwestern Puerto Rico 
  out 10 NM and Coastal Waters of Southwestern 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.

&&

$$

AMZ710-160515-
/O.CAN.TJSJ.TR.W.1007.000000T0000Z-000000T0000Z/
/O.NEW.TJSJ.SC.Y.0034.210815T2115Z-210816T1200Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
515 PM AST Sun Aug 15 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM AST MONDAY...
...TROPICAL STORM WARNING IS CANCELLED...

* WHAT...Southeast winds 15 to 20 kt with higher gusts at times and
  seas 5 to 7 feet with occasional seas up to 9 feet.

* 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.

&&

$$

AMZ712-715-722-725-152215-
/O.CAN.TJSJ.TR.W.1007.000000T0000Z-000000T0000Z/
Coastal Waters of Northern Puerto Rico out 10 NM-
Coastal Waters of Northern USVI and Culebra out 10 NM-
Anegada Passage Southward to 17N-
Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico
out 10 NM-
515 PM AST Sun Aug 15 2021

...TROPICAL STORM WARNING IS CANCELLED...

However, choppy seas up to 6 feet and winds up to 20 kt with
occasional higher gusts are expected to continue through tonight.

$$
2 follow-up statements
788 
WHCA72 TJSJ 160102
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
902 PM AST Sun Aug 15 2021

AMZ732-735-741-742-745-160600-
/O.CON.TJSJ.SC.Y.0034.000000T0000Z-210816T0600Z/
Caribbean Waters of Puerto Rico from 10 NM to 17N-
Coastal Waters of Southern Puerto Rico out 10 NM-
Mona Passage Southward to 17N-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
902 PM AST Sun Aug 15 2021

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

* WHAT...East winds between 20 to 30 knots with gusts to around 
  45 knots easing to 15 to 20 knots after midnight. Seas 6 to 8 
  feet with occasional seas up to 10 feet.

* WHERE...Caribbean Waters of Puerto Rico from 10 NM to 17N, 
  Coastal Waters of Southern Puerto Rico out 10 NM, Mona Passage 
  Southward to 17N, Coastal Waters of Northwestern Puerto Rico 
  out 10 NM and Coastal Waters of Southwestern 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.

&&

$$

AMZ710-160915-
/O.CON.TJSJ.SC.Y.0034.000000T0000Z-210816T1200Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
902 PM AST Sun Aug 15 2021

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

* WHAT...Southeast winds 15 to 20 kt with higher gusts at times 
  and seas 5 to 7 feet with occasional seas up to 9 feet.

* 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.

&&

$$
987 
WHCA72 TJSJ 160833
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
433 AM AST Mon Aug 16 2021

AMZ710-160945-
/O.CAN.TJSJ.SC.Y.0034.000000T0000Z-210816T1200Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
433 AM AST Mon Aug 16 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

$$

The office that day

Everything else NWS JSJ issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 15, 5:05 AM CDTHigh Surf AdvisoryJSJ11 hr
Aug 15, 5:47 PM CDTAreal Flood AdvisoryJSJ3 hr
Aug 15, 6:02 PM CDTSpecial Marine WarningJSJ43 min
Aug 15, 6:55 PM CDTAreal Flood AdvisoryJSJ3 hr

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.