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ALL USA coasts under some type of hazardous marine warning

 
Anonymous Coward
User ID: 3738979
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12/21/2012 01:04 AM
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ALL USA coasts under some type of hazardous marine warning
Take a look at the map below. All coasts, including Alaska and Hawaii.

[link to www.weather.gov]
Anonymous Coward (OP)
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12/21/2012 01:15 AM
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Re: ALL USA coasts under some type of hazardous marine warning
bump

Any weather nerds on here ever seen all coasts under such warnings?
Mister ObviousModerator
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12/21/2012 01:16 AM

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Re: ALL USA coasts under some type of hazardous marine warning
Weird.
Children of the Atom

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12/21/2012 01:17 AM
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Re: ALL USA coasts under some type of hazardous marine warning
Take a look at the map below. All coasts, including Alaska and Hawaii.

[link to www.weather.gov]
 Quoting: Anonymous Coward 3738979


Interesting, that even seems to have an impact on Hawaii and Alaska

spock

good catch!
Abalone~

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12/21/2012 01:18 AM

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Re: ALL USA coasts under some type of hazardous marine warning
High Surf ?

Last Edited by ^V^ on 12/21/2012 01:19 AM
The above post is meant for entertainment purposes only & does not necessarily reflect the views of management~
Anonymous Coward
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12/21/2012 01:19 AM
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Re: ALL USA coasts under some type of hazardous marine warning
I'm color blind so that means shit to me.
What does that color represent?
Anonymous Coward (OP)
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12/21/2012 01:20 AM
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Re: ALL USA coasts under some type of hazardous marine warning
Take a look at the map below. All coasts, including Alaska and Hawaii.

[link to www.weather.gov]
 Quoting: Anonymous Coward 3738979


Interesting, that even seems to have an impact on Hawaii and Alaska

spock

good catch!
 Quoting: Children of the Atom


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
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12/21/2012 01:21 AM
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Re: ALL USA coasts under some type of hazardous marine warning
Galactic Alignment raising our sea waters?
Anonymous Coward
User ID: 30462411
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12/21/2012 01:22 AM
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Re: ALL USA coasts under some type of hazardous marine warning
Water unsafe to drink warning.


It's a $12 Billion Dollar FEMA idea to warn about drinking salt water. This new warning system will save 8 lives over a 50 year period.
Anonymous Coward (OP)
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12/21/2012 01:22 AM
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Re: ALL USA coasts under some type of hazardous marine warning
I'm color blind so that means shit to me.
What does that color represent?
 Quoting: Anonymous Coward 13179944


Hazardous Seas Warnings/Gale Warnings/High Surf Advisories
Anonymous Coward
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12/21/2012 01:23 AM
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Re: ALL USA coasts under some type of hazardous marine warning
Very interesting.
Anonymous Coward
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12/21/2012 01:24 AM
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Re: ALL USA coasts under some type of hazardous marine warning
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
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12/21/2012 01:32 AM
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Re: ALL USA coasts under some type of hazardous marine warning
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)
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12/21/2012 01:42 AM
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Re: ALL USA coasts under some type of hazardous marine warning
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
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12/21/2012 01:44 AM
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Re: ALL USA coasts under some type of hazardous marine warning
bump
Anonymous Coward
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12/21/2012 01:44 AM
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Re: ALL USA coasts under some type of hazardous marine warning
bump
Angry Hierophant
Prophet of Thelema

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12/21/2012 01:46 AM

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Re: ALL USA coasts under some type of hazardous marine warning
Little bit of sloshing maybe?
Anonymous Coward
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12/21/2012 01:46 AM
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Re: ALL USA coasts under some type of hazardous marine warning
Could this have something to do with NASA killing the ISS feed?
Blackhawkie

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12/21/2012 01:48 AM

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Re: ALL USA coasts under some type of hazardous marine warning
:gdb:hiding
You ever see Ranger Batman in his batman costume, very dapper. Do you like 3 siren alerts? --Hawk-02
Anonymous Coward (OP)
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12/21/2012 01:49 AM
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Re: ALL USA coasts under some type of hazardous marine warning
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
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12/21/2012 01:51 AM
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Re: ALL USA coasts under some type of hazardous marine warning
Yeah, as noted by others, it seems to be a Gale Warning. It's supposed to be windy pretty much everywhere (across North America, anyway). There are actually several threads going on about it right now.

DOOM? Here's hoping. :)
Anonymous Coward (OP)
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12/21/2012 01:53 AM
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Re: ALL USA coasts under some type of hazardous marine warning
A list of all Hazardous Sea Warnings:

[link to forecast.weather.gov]
Deej

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12/21/2012 01:54 AM
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Re: ALL USA coasts under some type of hazardous marine warning
Global Coastal Phenomenon... Web "whatevers" right again!

5a
No matter what happens... just say "Thank You." - D W Fierce
Anonymous Coward (OP)
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12/21/2012 01:59 AM
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Re: ALL USA coasts under some type of hazardous marine warning
A list of high surf advisories:

[link to forecast.weather.gov]
Anonymous Coward
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12/21/2012 02:00 AM
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Re: ALL USA coasts under some type of hazardous marine warning
iss feeds on a loop now.
Anonymous Coward
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12/21/2012 02:10 AM
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Re: ALL USA coasts under some type of hazardous marine warning
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
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12/21/2012 02:17 AM
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Re: ALL USA coasts under some type of hazardous marine warning
bad weather is normal for the west coast in winter... high winds and seas are part of life here... i like it personally.
LittleMissDictator
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12/21/2012 02:19 AM

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Re: ALL USA coasts under some type of hazardous marine warning
bump
"Start giving, and see the JOY in giving"
39DragonFlies

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12/21/2012 02:35 AM
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Re: ALL USA coasts under some type of hazardous marine warning
iss feeds on a loop now.
 Quoting: Anonymous Coward 11813204


bump
Anonymous Coward
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12/21/2012 02:38 AM
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Re: ALL USA coasts under some type of hazardous marine warning
any way connected to THIS?
Thread: Red Dot On ISS Stream
[link to i.imgur.com]

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