Air Pollution and Dust Credited WIth Weakening Hurricanes Irene and Katrina
Posted: 9:30 AM EDT on April 28, 2015
Hurricane Irene of August 2011 was predicted to hit North Carolina as a Cat 3, but hit as a Cat 1. New research gives partial credit for Irene’s unexpected weakening to dust and air pollution sucked in by the storm. These particles (collectively called aerosols) invigorated the outer spiral bands and outer eyewall, and kept the outer portions of the storm strong at the expense of the inner core.
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The Miami April of 1988 was considerably warm. On this date of that year, Miami recorded a high of 92 degrees, marking a record eighth day of 90 degree heat in April. To the north, however, the Washington D.C. area received snowfall even with temperatures well into the 40s and 50s when it began snowing.
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