Marine Weather Statement issued December 22 at 11:05AM EST by NWS Baltimore MD/Washington DC
Although more frequent and widespread gusts have diminished, a few isolated gusts to near 20 knots are still possible through early afternoon. Inexperienced mariners, especially those operating smaller vessels, should exercise extra caution if navigating the waters during this time.
Special Marine Warning issued December 19 at 1:18AM ChST until December 19 at 2:45AM ChST by NWS Tiyan GU
SMWGUM THE NATIONAL WEATHER SERVICE IN TIYAN GUAM HAS ISSUED A * SPECIAL MARINE WARNING FOR... GUAM COASTAL WATERS... * UNTIL 245 AM CHST. * AT 118 AM CHST...STRONG THUNDERSTORMS WERE LOCATED EAST AND SOUTHEAST OF GUAM...MOVING NORTHWEST AT 35 KNOTS. HAZARD...WIND GUSTS TO 40 KNOTS. SOURCE...RADAR. IMPACT...SMALL CRAFT COULD BE DAMAGED IN BRIEFLY HIGHER WINDS AND SUDDENLY HIGHER WAVES. * STRONG THUNDERSTORMS WILL BE NEAR... IPAN BUOY AROUND 140 AM CHST.
FLIGHT ADVISORY – Marine Corps Air Station, AZ
FLIGHT ADVISORY GPS INTERFERENCE TESTING MARINE CORPS AIR STATION ARIZONA (MCASAZ) 24-03 17 – 20 December Marine Corps Air Station, AZ The entire flight advisory may be accessed and downloaded at the following address: https://www.faasafety.gov/files/notices/2024/Dec/MCASAZ_24-03_GPS_Flight_Advisory_.pdf Pilots are advised to check NOTAMs frequently for possible changes prior to operations in the area. NOTAMs will be published at least 24 hours in advance of this event.
Marine Weather Statement issued December 2 at 3:13AM EST by NWS Newport/Morehead City NC
Gusty winds can be expected in the wake of a cold front from 4 AM to 8 AM. Wind gusts from the north and northwest can exceed 25 knots. Mariners of small craft should prepare for the approaching post- frontal wind surge.
Marine Weather Statement issued November 27 at 5:28PM PST by NWS Los Angeles/Oxnard CA
Mariners should be prepared for abrupt visibility changes down to one nautical mile or less. Reduce speeds and be on the lookout for exposed rocks and other vessels, including large ships in the shipping lanes. Use radar or GPS navigation if available, and consider remaining in harbor if such equipment is unavailable.
Marine Weather Statement issued November 27 at 8:17PM EST by NWS Baltimore MD/Washington DC
A few southeasterly wind gusts to near 20 knots are possible tonight. Inexperienced mariners, especially those operating smaller vessels, should exercise extra caution if navigating the waters during this time.
Marine Weather Statement issued November 27 at 4:14PM PST by NWS San Diego CA
Patchy areas of dense fog with visibility 1 NM or less is expected now through Thursday morning, especially for the nearshore waters. Fog should lift/clear an hour or two after sunrise. Mariners should be prepared for sudden drops in visibility. Reduce speeds and be on the lookout for other vessels. Use radar or GPS navigation if available, and consider remaining in harbor if such equipment is unavailable.
Marine Weather Statement issued November 23 at 6:31PM AST by NWS San Juan PR
The areas affected include... Atlantic Waters of Puerto Rico AND USVI from 10 NM to 19.5N... Coastal Waters of Northern Puerto Rico out 10 NM... At 631 PM AST, Doppler radar indicated a strong thunderstorm, capable of producing winds to around 30 knots. This thunderstorm was located offshore from Arecibo to Manati. The thunderstorm was nearly stationary.
Marine Mineral Formations in the Arctic Ocean Challenge Existing Geologic Theories
Not only do these mineral formations challenge previous assumptions about geologic processes in the Arctic, but their unique composition also sets them apart from other marine minerals found in the region. Differences in their mineralogy and element composition indicate they were formed under distinctive conditions, driven by specific physical and chemical interactions beneath the seafloor. “This discovery broadens our understanding of marine mineral formation, highlighting complex geological processes in the Arctic Ocean that were previously unrecognized,” said Amy Gartman, USGS Research Geologist and co-author of the study. Read the study, Neogene hydrothermal Fe- and Mn-oxide mineralization of Paleozoic continental rocks