Actually, there are TWO high tides and TWO low tides, on almost every day.
Jo mama
There are two high tides and two low tides every day.
High tides, low tides, spring tides (which are maximum high tides) and neap tides (which are the lowest of low tides).
A neap tide is a tide with the least difference between consecutive and low and high tides. A spring tides are combined forces which produce a tide with a greatest difference between consecutive low and high tides. They occur because the moons gravitational pull is pulling it.
Fifteen thousand feet.
Every two days
They consider high and low tides in their journey because if it is high tide the water level will be high but if it is low tides the water level is low.
Low tides
High tides. The others are called low tides.
medium tides
same
high tides are high water level they are called spring tides and low tides are low water level they are called neap tides. high tides and low tides occur when the sun, earth and the moon are inline. during new moon there are high tides at west and east and low tides at north and west, because the direction which the moon is facing that direction will have a high tide.