when does incoming tide usually occur?
536110
local newspapers print it everyday .check daily youll know everyday from then on
970700
It's not exact, or we wouldn't see phases of the moon. See, the moon is a significant influence on times of ebb and flood tides, and if it was perfectly synchronized with our rotation, then it would be the same phase every day.\n\nFurthermore, it changes every day at each location. For the most part, you can count on a 5 or 6 hour flood stage from low to high tide, followed by a 5 or 6 hour ebb stage back to low tide.\n\nOther forces effect tides (such as the sun's gravity), but as far as time of day for high and low tides, nothing compares to the moon's gravitational tug.
1047570
if you check the tide tables printed for your area on the earth you will notice significant differences in the tides all year long. There are 2 lows and 2 highs per day every day, approximately ever 6 hours, alternating high, low, high low. The tide table lists these 4 for you. The lowest lows-highs are known to be during the NEW MOON, esp during winter, but full moons are quite low-high too. So, yes, the moon does exert gravitational pull on the earth and its waters.  \n\nFull moon even affects birth rate (labor), moods, crime. Eclipses are also notorious for its effects on people as well.\n\nTide changes vary from place to place on the earth.  Even a few miles north or south of the site a tide table is made for can affect the results predicted in the little tide booklet. The topography-geology of the bodies of water all over the world also affect this. Some places on the earth go thru MAJOR changes with the tides during these full and new moon phases every day.....Bay of Fundy is one place to look up......tidal change can by 30 feet. If there is a storm, then there is possiblity of even greater tide changes given in the tide tables.
677529
Tides occur because the gravitational force between two bodies decreases with distance. Gravitation is the universal force of attraction between all matter. It holds astronomical bodies together and attracts different bodies toward each other. Because gravity tugs on nearby things more strongly than on distant things, the oceans closest to the Moon, feel the greatest attraction to the Moon. Being fluid, these nearby oceans move upward in response to the Moon's pull, until there is a balance between the upward force from the Moon and the downward force from Earth. The high tide on the far side of the Earth occurs because these most distant oceans feel the least attraction to the Moon. In essence, they are left behind as the Moon pulls the other parts of Earth toward itself with greater force.\n\nThe Moon is steadily moving up. As anyone who climbs long flights of stairs knows, it takes energy to move up. If the Moon is moving up, where does the energy come from? There is only one place it could come from: the spin of Earth. This is a zero-sum game that physicists call the conservation of angular momentum: The total angular momentum in the Earth-Moon system, which related to the energy stored in both rotation and revolution, must remain the same. Since the Moon is gaining angular momentum as it spirals away, Earth must lose the same amount of angular momentum. Earth loses angular momentum because the high tide closest to the Moon is trying to get back directly underneath the Moon, while the high tide farthest from the Moon is trying to get as far away from the Moon as possible. Consequently, the high tides flow westward, and in so doing, they encounter continents and islands. The water pushes against these landmasses, which, because of rotation, are moving eastward. The net result is that the westward motion of the tides -- slowing down the rotation, retards the eastward revolution. The day is getting longer by about 0.002 seconds per century. It does not sound like much, but over billions of years, it adds up.\n\nOn a moonless Earth, the only tides would be from the Sun. The Sun accounts for one-third of the tides on Earth today. Therefore, Earth would still experience some tides and its rotation would still slow down, but not nearly by as much as nonce. A moonless Earth day would be around eight hours long at this time in its life, 4.6 billion years after it formed.\n\nAdditionally, the faster a planet rotates, the faster its winds blow. Higher winds and the shorter days on Earth would have major effects on evolution; imagine what day-to-day life would be like with only three or four hours of sunlight each day, much different than now…\n\nLess protection from meteors and imminent impacts, as you can see, the Moon has shielded us from a cosmic bombardment, just look at its surface.
730462
It's due to gravity. \nThe Moon Tide\nThe earth and the moon are two great masses that have a significant gravitational pull on each other. This is what keeps the moon in orbit around the earth, and it is also what causes tides to occur in the ocean. Picture the earth with a uniform level of water all around it.  The moon’s gravity pulls on the earth, and pulls the water towards it. The water moves up into a slight bulge on the side of the earth that faces the moon. At the same time, there is a force pulling water out in the opposite direction of the moon.\n\nCheck this link.\n\n\nIt will answer all your questions.\n http://oceanlink.island.net/oinfo/tides/tides.html
199887
http://www.saltwatertides.com/pickpred.html\n\nThis site seems to have quite a few sites that you can pick to get the correct tidal information. Good luck!
176407
The tides are mainly influenced by the psition of the sun and moon relative to the earth and their gravitational pull, however the tides are also affected by the flow of water around geographical features it is such a complex system that tides are predicted by past measurement rather than a predicting formulae.
44975
The tides are caused because on one side of the earth, the gravitational pull of the moon (and other bodies) pulls the water away from the earth, and makes a big lump we call a high tide. On the other side of the earth, the earth gets pulled away from the water, leaving another big lump. That is why in most places we see 2 tides a day (although in some places there are no tides, or 1 tide a day, or more than 2 a day). \n\nThere are tides in the atmosphere too, and in the ground, as you might expect. It is not just in the water, but we can see the water tides easiest in the oceans and some big lakes.
235276
try surfrider.com   they may have a link on that site to check out the tide levels/times.
844774
Try this site for high and low tide.  It's the best I can do without knowing the exact location in the Wesminter area you need this data for.\n\nhttp://tidesandcurrents.noaa.gov/tides06/tab2wc1a.html#122
490870
For me I use high tide to low tide depending on the type of break you are looking for. High tide usually brings shore break waves and are smaller. Low tide usually has more contiuned sets and the waves are larger. I messed up my fins by trying to catch shore break during high tide. Good Luck!
1121654
Tides on earth\nThe gravitational attraction that the Moon exerts on Earth is the cause of tides in the sea. The tidal flow period, but not the phase, is synchronized to the Moon's orbit around Earth. The tidal bulges on Earth, caused by the Moon's gravity, are carried ahead of the apparent position of the Moon by the Earth's rotation, in part because of the friction of the water as it slides over the ocean bottom and into or out of bays and estuaries. As a result, some of the Earth's rotational momentum is gradually being transferred to the Moon's orbital momentum, resulting in the Moon slowly receding from Earth at the rate of approximately 38 millimetres per year. At the same time the Earth's rotation is gradually slowing, the Earth's day thus lengthens by about 15 µs every year. A more detailed discussion follows in the section titled Earth & Moon\n\nEarth & Moon\nTidal effects\n  \nThe tides on Earth are mostly generated by the Moon's gravitation, with a less significant contribution by the Sun. These gravitational effects are specifically manifested as tidal forces. The combination of the two is responsible for spring and neap tides. Two tidal bulges, one in the direction of the Moon, and one in the opposite direction (figure 1) form as a result of the tidal forces. The buildup of these bulges and their movement around the earth causes an energy loss due to friction. The energy loss decreases the rotational energy of the Earth.\n\nSince the Earth spins faster than the Moon moves around it, the tidal bulges are dragged along with the Earth's surface faster than the Moon moves, and move "in front of the Moon" (figure 2). Because of this, the Earth's gravitational pull on the Moon has a component in the Moon's "forward" direction with respect to its orbit. This component of the gravitational forces between the two bodies acts like a torque on the Earth's rotation, and transfers angular momentum and rotational energy from the Earth's spin to the Moon's orbital movement.\n\n \nGalileo spacecraft took this picture of the Earth-moon system \nLunar librationBecause the Moon is accelerated in the forward direction, it moves to a higher orbit. As a result, the distance between the Earth and Moon increases, and the Earth's spin slows down (figure 3). Measurements reveal that, at present, the Moon's distance to the Earth increases by 38 mm per year (lunar laser ranging experiments with laser reflectors are used to determine this). Atomic clocks also show that the Earth's day lengthens by about 15 microseconds (µs) every year.\n\nThis effect is expected to continue until the spin of the Earth has slowed to match the orbital period of the Moon. At that point the tidal effect of the Sun will dominate, further slowing the Earth and thereafter causing the orbit of the Moon to steadily shrink. However these effects would not be expected to occur until long after the Sun has become a red giant.\n\nHowever, the formation of tidal bulges on Earth is irregular and not directly related to the frictional energy loss which accompanies the tides. For example, continents on Earth may cause an increase in frictional energy losses and hamper the buildup of tidal bulges (figure 4).\n\nThe lunar surface is also subjected to tides from earth, and rises and falls by around 10 cm over 27 days. The lunar tides comprise a mobile component, due to the Sun, and a selenographically fixed one, due to Earth (the Moon keeps the same face turned to the Earth, but not to the Sun). The vertical motion of the Earth-induced component comes entirely from the Moon's orbital eccentricity; if the Moon's orbit were perfectly circular, there would be solar tides only. The magnitude of the Moon's tides corresponds to a Love number of 0.0266, and supports the idea of a partially melted zone around its core. Moonquake waves lose energy below 1,000 kilometres in depth, and thi
537829
Tidal forces are based on the gravitational attractive force. The relationship between the masses of the Earth, moon and sun and their distances to each other play critical roles in affecting tides.  \n \nGravity is one major force that creates tides. In 1687, Sir Isaac Newton explained that ocean tides result from the gravitational attraction of the sun and moon on the oceans of the earth (Sumich, J.L., 1996).\n\nNewton’s law of universal gravitation states that the gravitational attraction between two bodies is directly proportional to their masses, and inversely proportional to the square of the distance between the bodies (Sumich, J.L., 1996; Thurman, H.V., 1994). Therefore, the greater the mass of the objects and the closer they are to each other, the greater the gravitational attraction between them (Ross, D.A. 1995).\n\nThe moon is a major influence on the Earth’s tides, but the sun also generates considerable tidal forces. Solar tides are about half as large as lunar tides and are expressed as a variation of lunar tidal patterns, not as a separate set of tides. When the sun, moon, and Earth are in alignment (at the time of the new or full moon), the solar tide has an additive effect on the lunar tide, creating extra-high high tides, and very low, low tides—both commonly called spring tides. One week later, when the sun and moon are at right angles to each other, the solar tide partially cancels out the lunar tide and produces moderate tides known as neap tides. During each lunar month, two sets of spring tides and two sets of neap tides occur (Sumich, J.L., 1996).\n\nJust as the angles of the sun, moon and Earth affect tidal heights over the course of a lunar month, so do their distances to one another. Because the moon follows an elliptical path around the Earth, the distance between them varies by about 31,000 miles over the course of a month. Once a month, when the moon is closest to the Earth (at perigee), tide-generating forces are higher than usual, producing above-average ranges in the tides. About two weeks later, when the moon is farthest from the Earth (at apogee), the lunar tide-raising force is smaller, and the tidal ranges are less than average. A similar situation occurs between the Earth and the sun. When the Earth is closest to the sun (perihelion), which occurs about January 2 of each calendar year, the tidal ranges are enhanced. When the Earth is furthest from the sun (aphelion), around July 2, the tidal ranges are reduced (Sumich, J.L., 1996; Thurman, H.V., 1994).
762687
The waves are usually formed by wind action, but can be formed by earthquakes or volcanic explosions (tsunamis). The tides are a result of gravitational effects of the moon and sun.
1097470
All Mass generates a gravitational pull.\n\nBecause the Moon is so close to the Earth, we come into range of its pull.\n\nWith the moon in pulling in a different direction to Earth's pull, there is a minute difference which is discernible in water because it is continually moving and has a very small mass in itself.\n\nSo when the Moon is above us, the gravitational pull of Earth is slightly less to that the tide level will increase.
178742
Good question!\n\nIn fact, causing the tide on Earth actually results in the Earth-Moon system losing a little energy during every orbit.  \n\nThis results in the moon moving a little further from the earth to maintain the angular momentum of the system.
312177
I believe that in most places, the difference in daily tide levels is greater than the difference between spring and neap tides.  Since the Sun's position relative to the earth changes in a daily cycle, and the Moon's position changes in a monthly cycle, that suggests to me that the Sun has a greater effect on tides.