Alert archive / Puerto Rico / Special Marine Warnings in 2012

Special Marine Warning 21, NWS JSJ

June 29, 2012

NWS JSJ issued this special marine warning at Jun 29, 2012, 12:07 PM CDT. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 29, 2012, 12:07 PM CDT (17:07 UTC)
Expired: Jun 29, 2012, 12:39 PM CDT
In force: 32 min
Issued by: NWS JSJ
Area: Storm-based polygon

The radar

The San Juan radar (TJUA), 149 km from the middle of the area, began a volume at 17:14 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The text

As transmitted, in the capitals the NWS used until 2016.

034 
WHCA52 TJSJ 291707
SMWSJU
AMZ741-742-291900-
/O.NEW.TJSJ.MA.W.0021.120629T1707Z-120629T1900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
107 PM AST FRI JUN 29 2012

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* SPECIAL MARINE WARNING FOR...
  COASTAL WATERS OF NORTHWESTERN PUERTO RICO OUT 10 NM...
  MONA PASSAGE SOUTHWARD TO 17N...

* UNTIL 300 PM AST

* AT 1255 PM AST...SATELLITE IMAGERY INDICATED A STRONG THUNDERSTORM 
RAPIDLY INTENSIFYING ACROSS AGUADA MOVING WESTWARD AROUND 10 KNOTS. 
THIS THUNDERSTORM WILL BE CAPABLE OF PRODUCING FREQUENT 
LIGHTNING...HEAVY RAINFALL...STRONG WINDS UP TO 40 KNOTS AND 
POSSIBLE WATERSPOUTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THUNDERSTORMS CAN PRODUCE SUDDEN WATERSPOUTS. WATERSPOUTS CAN EASILY
OVERTURN BOATS AND CREATE LOCALLY HAZARDOUS SEAS. SEEK SAFE HARBOR
IMMEDIATELY.

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF CAUGHT ON THE
OPEN WATER STAY BELOW DECK IF POSSIBLE...KEEP AWAY FROM UNGROUNDED
METAL OBJECTS.

&&

LAT...LON 1851 6778 1850 6714 1838 6711 1833 6721
      1827 6771
TIME...MOT...LOC 1704Z 099DEG 1KT 1838 6718

$$

ROSA

1 follow-up statement

245 
FZCA72 TJSJ 291739
MWSSJU

MARINE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
139 PM AST FRI JUN 29 2012

AMZ741-742-291749-
/O.CAN.TJSJ.MA.W.0021.000000T0000Z-120629T1900Z/
139 PM AST FRI JUN 29 2012

...SPECIAL MARINE WARNING CANCELLED...

THE AFFECTED AREAS WERE...
WATERS OFF OF RINCON AND AGUADA COASTS.

THUNDERSTORMS HAVE MOVED OUTSIDE OF THE WARNED AREA.

LAT...LON 1851 6778 1850 6714 1838 6711 1833 6721
      1827 6771
TIME...MOT...LOC 1739Z 099DEG 1KT 1838 6719

$$

ROSA

The office that day

Everything else NWS JSJ issued on the same UTC day.

Issued	Product	Office	Lasted
Jun 29, 11:28 AM CDT	Areal Flood Advisory	JSJ	2 hr
Jun 29, 11:47 AM CDT	Areal Flood Advisory	JSJ	118 min
Jun 29, 12:00 PM CDT	Areal Flood Advisory	JSJ	2 hr
Jun 29, 12:10 PM CDT	Areal Flood Advisory	JSJ	108 min
Jun 29, 12:37 PM CDT	Areal Flood Advisory	JSJ	80 min
Jun 29, 12:46 PM CDT	Flash Flood Warning	JSJ	4 hr
Jun 29, 12:51 PM CDT	Special Marine Warning	JSJ	114 min
Jun 29, 5:07 PM CDT	Areal Flood Advisory	JSJ	73 min

Nearby

Special Marine Warnings in Puerto Rico, 2012 Every special marine warning in 2012

Sources

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