Hurricanes along with other cyclones that form in the tropics during the summer and autumn are quite different from the tropical storms that form throughout the winter.  Both kinds of storms can easily produce strong winds and flooding rain.  There are actually 7 key characteristics that define a tropical storm and they’re that hurricanes haven’t any fronts and the winds weaken with height.  The centers of the hurricane are hotter than their surroundings and they form under weakened high altitude winds.  Air also sinks at the middle of a hurricane the main source of energy is a hidden heat of condensation.  The final major characteristic of a hurricane is they weaken quickly over land.  Over the last third of the 20th century, deluges and landslides from heavy rains were the key reason for hurricane and tropical storm deaths.

To make the most efficient analysis of available data relating to hurricanes, one should know about the normal wind pressure, temperature, atmosphere and weather patterns regarding them.  No two hurricanes are precisely the same and there are good variations between each one.  Specific common features will appear with enough frequency permitting mean pattern classifications.  These characteristics serve as an important guide in reconstructing the picture of the specific hurricane from sparse data.  Given that meteorological factors aren’t distributed uniformly throughout all parts of hurricanes, it’s customary to describe the storms in terms of left and right semicircles or four quadrants.  The division into semi circles is along a line extending by the middle of the cyclone and in the course towards the storm.

The surface winds of the hurricane will blow back to the inside in a counterclockwise direction towards the center.  The winds inside the left back quadrant have the biggest angle of inflow.  The diameter of the area impacted by storm winds could be more than 100 miles in massive storms or no more than 25 miles in lesser storms.  Gale force winds can include an area of 500 to 800 miles if not more.  The maximum extent of strong winds is often in the direction of the main subtropical high-pressure center.  This is most often found on the right on the storm’s way in the Northern Hemisphere.  Surface wind speeds of more than 140 knots have been successfully registered, although the exact measurements of peak wind speeds haven’t been possible with any trustworthy degree of accuracy.

The ocean level isobars are a great tool to examine hurricanes.  The isobars take on a symmetrical or elliptical form.  Contrary to extra tropical cyclones, the tropical cyclones show no cooling towards the storms center.  This means that the horizontal adiabatic cooling caused by reduce pressures and is mainly counteract by the heat added with the condensation process.  The cloud patterns of tropical cyclones also are different from those of extra tropical cyclones.  In mature tropical cyclones, most of the cloud forms are present, but the most substantial clouds would be the heavy cumulus and cumulonimbus clouds, which spiral inward in the direction of the outside edge of the eye.  The eye of a storm is probably the oddest phenomenon knows in meteorology.  Rain ceases suddenly at the boundary of a well-developed eye. The sky clears, the sun or stars become visible, the wind decreases to lower than 15 knots, and there’s a dead calm.

In mature storms, the eye’s size averages about 15 miles. However it might attain over 40 miles in massive typhoons.  The eye will not be always circular and quite often it might be elongated and could appear to have a double structure appearance.  The eye is continually going through transformation and doesn’t remain in a stable condition.

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