Hurricanes develo p from easterly waves, which may grow into a tropical depression, then a tropical storm, and, finally, with winds of 74 mph or higher, a hurricane.
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A tandem of easterly waves, which are disturbances moving from east to west over low latitudes, will increase the chance of showers and thunderstorms along the western Gulf Coast and east-central Florida.
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Some heavy thunderstorms will patrol the Texas seaboard as an easterly wave, which marks an area of low pressure moving east to west over the tropics, comes ashore from the Gulf of Mexico.
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Along its southerly periphery, the clockwise circulation often impels easterly waves, and tropical cyclones that develop from them, across the ocean towards landmasses in the western portion of ocean basins during the hurricane season.
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A 2011 study analyzing one of the main sources of hurricanes-the African easterly wave ( AEW )-found that the change in AEWs is closely linked to increased activity of intense hurricanes in the North Atlantic.
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In a 2000 " Monthly Weather Review " article, Fuller and Stensrud show that over the 14 years studied the easterly waves consistently produce gulf surges within three days of the through passing the tip of Baja California.
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Monday marked the beginning of hurricane season over the tropical eastern Pacific . ( Atlantic hurricane season begins June 1 . ) The May 15 start pays homage to an early pool of warm water that traditionally develops off the western coast of Mexico south of Baja, Calif . The catalysts for tropical storms are easterly waves and systems of thunderstorms over the mountains of Mexico.