Watch the Flow...see where Dennis goes...

First lesson in tropical systems. They are a low. They go to low pressure and avoid high pressure. Really is that simple though we make it much more complicated with upper air flow, lower air patterns, warm water temps.. model discussion. MJO.

Watch the water vapor loop to see where it goes.

You see moisture is constantly flowing around this beautiful blue planet of our. The planet like most of our body is made of ... water.. H20.

Rivers of moisture race through the upper atmosphere around high pressure systems.

A good strong hurricane chugging westward will go west underneath a strong Bermuda High. They like to move towards the poles (north) but the highs block them until they make it up to higher lattitudes where they can do their northerly thing.

Nature's own way of moving warm temperatures and moisture from the hot tropics and transfering it north.. up to colder climes. It's nature's balancing act.

So... the lows go towards lows, other lows, upper level lows.

In this case one storm like Cindy will open up a path for the next storm to follow if everything else is in the same place. Witness Frances and Jeanne last year.

On the water vapor the darker colors of blue are high pressure. The lighter milky colors filled with pockets of deeper colors (yellow, orange, red, green on the color ones) are moisture.

Use it. Play with it. Make it your friend. Your crystal ball into tomorrow's path of the tropical cyclone.

Yes, it looks like one big colored lava lamp but it's not.

It's painting you a picture.

Look for the opening, the path, the road.
See where Dennis and the other storms after him... go.

http://orca.rsmas.miami.edu/wximages/jet/1_05/anis.html

If you want a fantastic lesson in this watch Jim Cantore on TWC if you get a chance. He is one of the best there is on reading a water vapor loop.