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Eastern Pacific's 1st Named Storm Falls Apart

UPDATED 2 AM PDT, May 17, 2013

UPDATED By WeatherBug Meteorologist, Andrew Rosenthal

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Though Alvin arrived the same day the 2013 Eastern Pacific Hurricane season became official, it has now passed into the history books. Alvin marks the beginning of six-and-a-half-month season that will last until November 30.

As of 2 a.m. PDT, Post-Tropical Cyclone Alvin was located near 10.3 N and 112.08 W, or about 790 miles southwest of Manzanillo, Mexico. Alvin`s top sustained winds have dipped to 35 mph.

Alvin lost its closed circulation as it was torn apart in the tropical eastern Pacific. Increasing wind shear was the storm`s death knell and the storm`s clouds merged with the general tropical flow in the area, with the storm losing its characteristics.

In an average Eastern Pacific season, which includes Central America`s and Mexico`s Pacific Coast, 15 to 16 tropical storms with winds of at least 39 mph form. Nine typically become hurricanes with winds in excess of 74 mph while 4 become major hurricanes with winds greater than 111 mph.

The first few storms typically form by late June but the most active part of the season occurs from September into early October. The eastern Pacific typically experiences a higher number of named tropical storms than does the Atlantic Basin. Even so, east to west winds in the eastern Pacific Ocean generally steer most storms away from the U.S., Mexico and Central America coastlines.

Now is the time to make a detailed disaster plan for you and your family should a tropical system head for your area. This includes knowing storm impacts to your home such as flooding, storm surge and wind. Have a disaster supply kit readily available. Also, it`s good to have an escape route in case evacuation orders are issued as well as a list of emergency contact numbers and out-of-state emergency contacts.

The 2012 season was slightly above average for the Eastern Pacific basin. Seventeen named storms formed, with ten becoming hurricanes and five major hurricanes.

Powerful Category 2 Hurricane Carlotta made landfall near Puerto Escondido, Mexico, making it the easternmost land falling hurricane in the eastern North Pacific basin since 1966. The only other storms to make landfall during the 2012 Eastern Pacific Season were Tropical Depression Norman, as it came onshore near Topolobampo, Mexico, late in September, and Post-tropical Cyclone Paul that came onto the west coast of Baja California Sur.

There were 11 named storms in 2011 and only 7 named storms and 3 hurricanes in 2010.

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