Thursday, November 12, 2015

Significant November Hurricanes


Hurricane Paloma in November 2008 (Source: NASA)


When Hurricane Kate developed this week, it became the first November hurricane in the Atlantic Ocean since Tomas in 2010.  Fortunately, Kate didn’t have much of an impact on any land masses and was a relatively short-lived storm as is typical in November.  Although November normally features little, if any, activity in the tropics, some noteworthy hurricanes do form on occasion.
 
2009: Hurricane Ida was a significant late season Category 2 storm.  Ida was also the strongest Atlantic hurricane to make landfall during the 2009 season when it struck the Nicaraguan coast as a Category 1 storm.  However, Ida weakened to a tropical storm and started to lose its tropical identity when it made landfall on the U.S. Gulf Coast –where it brought appreciable rainfall and gusty winds.  Mid-Atlantic residents also felt its indirect impact as Ida’s remnants served as a catalyst for an early-season Nor’Easter.  It brought gusty winds and a cold rain up and down the East Coast.

2008: Hurricane Paloma formed in the southwest Caribbean Sea, which is an area favorable area for tropical storms and hurricanes late in the season.  Paloma reached its peak intensity on November 8 as an intense Category 4 hurricane with sustained winds of 145 mph and a minimum central air pressure of 944 millibars.  The lower the air pressure, the stronger the storm is.  By comparison, standard sea level air pressure is approximately 1013 millibars.  Paloma was the strongest Atlantic hurricane to form in November since Michelle in 2001.  Paloma was also significant because it marked the first known instance where major hurricanes formed in the Atlantic Ocean Basin in five consecutive months (July through November). 

2001:  Although November rarely sees major hurricanes, that wasn’t the case in 2001.  According to the National Hurricane Center, Michelle became a Category 4 hurricane on November 3 with sustained winds of 140 mph and a minimum air pressure of 933 millibars.  Hurricane Michelle caused major damage and claimed more than 20 lives across the Caribbean during its destructive lifespan.

1932: The strongest November hurricane on record occurred so long ago that it developed before hurricanes were named and is referred to as the “1932 Cuba hurricane.”  This was November’s only Category 5 hurricane on record to develop in the Atlantic Ocean.  On November 6, 1932 the hurricane reached its peak intensity with maximum sustained winds of approximately 175 mph and a minimum central air pressure of 915 millibars.  Since hurricane hunter flights didn’t begin until the early 1940s, the most accurate way to measure the intensity of an offshore tropical storm or hurricane were ships at sea.  These measurements weren’t made at the center of the storm so the air pressure could have been even lower.

Fortunately, none of these hurricanes had a direct impact on the United States.  The last tropical system to have a significant impact in the United States during the month of November was Gordon in 1994.

2 comments:

  1. Great info Chris. There is one more storm that comes to my mind:
    1985: Hurricane Kate. The storm developed late on 11/15 north of the Virgin Islands and quickly became a hurricane 24 hours later. Tracking across the southern Bahamas moving west, Kate strengthened to a CAT 2 before skirting northern Cuba on the 19th with 105 mph sustained winds. Once the storm moved away from the northwestern coast of Cuba, it quickly intensified west of Key West, FL from 80 mph to a major CAT 3 with sustained winds of 120 mph on 11/20 and a pressure that dropped to as low as 954 mb or 28.17 inHg on 11/21. Kate got pulled north-northeast and made landfall near Mexico Beach, FL on 11/21 with sustained winds of 95 mph. This is still the latest strongest landfalling U.S. hurricanes.

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  2. Thanks, Charlie ! 1985 was quite a season with Gloria and Elena as well as Kate - which was obviously a much more significant storm 30 years ago than it was this season.

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