ALL USA coasts under some type of hazardous marine warning | |
Anonymous Coward (OP) User ID: 3738979 United States 12/21/2012 01:15 AM Report Abusive Post Report Copyright Violation | |
Anonymous Coward 12/21/2012 01:16 AM Report Abusive Post Report Copyright Violation | |
Children of the Atom User ID: 20257839 United States 12/21/2012 01:17 AM Report Abusive Post Report Copyright Violation | |
Abalone~ User ID: 1952895 United States 12/21/2012 01:18 AM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 13179944 United States 12/21/2012 01:19 AM Report Abusive Post Report Copyright Violation | |
Anonymous Coward (OP) User ID: 3738979 United States 12/21/2012 01:20 AM Report Abusive Post Report Copyright Violation | Interesting, that even seems to have an impact on Hawaii and Alaska good catch! Yeah, the entire east & west coasts, along with the Gulf of Mexico. I can't think of any time that I seen so many marine warnings. It's literally all of the USA coasts--including Alaska & Hawaii. |
hmmm User ID: 28643574 United States 12/21/2012 01:21 AM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 30462411 United States 12/21/2012 01:22 AM Report Abusive Post Report Copyright Violation | |
Anonymous Coward (OP) User ID: 3738979 United States 12/21/2012 01:22 AM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 25374084 United States 12/21/2012 01:23 AM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 21106518 United States 12/21/2012 01:24 AM Report Abusive Post Report Copyright Violation | Click on the pink color, and more comes up: " Hazardous marine condition(s): Gale Warning SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT." there is more there. |
Anonymous Coward User ID: 28643574 United States 12/21/2012 01:32 AM Report Abusive Post Report Copyright Violation | Hazardous Seas Warning: A warning for wave heights and/or wave steepness values meeting or exceeding locally defined warning criteria. 14. When the marine forecast says "seas 3-5 ft", what exactly does that mean? Waves are measured from trough to crest. Seas are the combination of both locally generated wind waves and distantly generated swell waves. Specifically, seas may be derived using the following formula where S is the height of the swell waves and W is the height of the wind waves. SEAS = Seas and waves are expressed in the terms of the significant wave height, the mean or average height of the highest one third of all waves in a swell train or in a wave generating region. It approximates the value an experienced observer would report if visually estimating sea height. When expressed as a range (e.g. seas 3-5 ft), this indicates a degree of uncertainty in the forecast and/or expected changing conditions (not that all waves are between 3-5 ft). Generally, it is assumed that individual wave heights can be described using a Rayleigh distribution. Example: Significant Wave Height = 10 ft 1 in 10 waves will be larger than 11 ft 1 in 100 waves will be larger than 16 ft 1 in 1000 waves will larger than 19 ft There are occasional reports of "rogue" waves of an even greater ratio Therefore, assuming a wave period of 8 seconds, for a significant wave height of 10 feet, a wave 19 feet or higher will occur every 8,000 seconds (2.2 hours). "The seventh wave of the seventh set" An old fisherman's tale? Perhaps, but it does serve to highlight that wave and surf conditions are not always constant. In open waters, the occasional wave may be twice that of the surrounding sea. There are occasional reports of "rogue" waves of an even greater ratio. Near shore, waves are even less predictable. So-called "sneaker waves" can grab the unwary who venture too close to the unpredictable sea. Mariners may be drawn too close to the surf zone during periods of relative calm. Proceed cautiously and always be wary of this not uncommon phenomenon, especially in areas where breaking surf is known to occur or appears likely. From the scientific point of view, this phenomena is more likely to occur when several swell systems combine. The danger presented to a vessel is a function of wave steepness as well as wave height and is unique to each vessel. In general for small vessels, for a given wave height the danger increases as the wave period decreases. Below is a table under development within the National Weather Service to assist forecasters in identifying sea conditions which may be of danger to vessels with a closed cockpit configuration of ~100 feet or less. The table is intended to be instructional only and the danger presented by waves to your own vessel may be quite different. [link to www.nws.noaa.gov] |
Anonymous Coward (OP) User ID: 3738979 United States 12/21/2012 01:42 AM Report Abusive Post Report Copyright Violation | Just a few listings of areas issued warnings or advisories: Philadelphia area - flood warning: [link to www.weather.gov] Wakefield, VA area - coastal advisory: [link to www.weather.gov] LA area - surf advisory -- building of 10 to 15 ft waves expected with beach erosion: [link to www.wrh.noaa.gov] |
Anonymous Coward User ID: 11552078 United States 12/21/2012 01:44 AM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 11552078 United States 12/21/2012 01:44 AM Report Abusive Post Report Copyright Violation | |
Angry Hierophant User ID: 17671175 United States 12/21/2012 01:46 AM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 13179944 United States 12/21/2012 01:46 AM Report Abusive Post Report Copyright Violation | |
Anonymous Coward (OP) User ID: 3738979 United States 12/21/2012 01:49 AM Report Abusive Post Report Copyright Violation | Guam is also under warnings of waves building to 11 - 14 feet. [link to www.prh.noaa.gov] P. Rico under small craft advisory too: [link to www.srh.noaa.gov] ALL Great Lakes are under warnings/advisories too (even though those are due to winter storms). Regardless, this is quite impressive seeing ALL coasts under some time of marine warning. |
Anonymous Coward User ID: 30232833 United States 12/21/2012 01:51 AM Report Abusive Post Report Copyright Violation | |
Anonymous Coward (OP) User ID: 3738979 United States 12/21/2012 01:53 AM Report Abusive Post Report Copyright Violation | |
Deej User ID: 28887081 United States 12/21/2012 01:54 AM Report Abusive Post Report Copyright Violation | |
Anonymous Coward (OP) User ID: 3738979 United States 12/21/2012 01:59 AM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 11813204 United States 12/21/2012 02:00 AM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 15883666 United States 12/21/2012 02:10 AM Report Abusive Post Report Copyright Violation | I was in the Navy stationed at NOB Norfolk. NOAA constantly overrated the conditions, so any time there was a rain storm, they issued a "rough sea advisory". They are basically abused they same way "tornado watches" are abused anytime there is a thunderstorm in the midwest. Highly annoying. |
Anonymous Coward User ID: 3946954 United States 12/21/2012 02:17 AM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 21778193 United States 12/21/2012 02:19 AM Report Abusive Post Report Copyright Violation | |
39DragonFlies User ID: 18270639 United States 12/21/2012 02:35 AM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 11813204 United States 12/21/2012 02:38 AM Report Abusive Post Report Copyright Violation | |