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Nov
30
2011

Tropical Cyclone Activity Report – Atlantic / Caribbean / Gulf of Mexico

The 2011 hurricane season ends tonight at midnight, and as a result this PDC Tropical Cyclone Activity Report for the Atlantic / Caribbean / and Gulf of Mexico will be discontinued until June 1, 2012.  Special tropical weather reports will be issued as needed however, if a significant weather system forms during the off-season.

2011 was the first hurricane season since reliable records began in 1851, that none of the first eight tropical storms reached hurricane strength. The 2011 season tied for the third most active on record…with 1887, 1995 and 2010. As a brief summary, there were 19 tropical cyclones that developed, with only seven of these storms becoming hurricanes…with just two attaining the distinction of becoming major hurricanes.

This season included, in order of their occurrence: TS Arlene, TS Bret, TS Cindy, TS Don, TS Emily, TS Franklin, TS Gert, TS Harvey, Hurricane Irene,  Tropical depression Ten, TS Jose, Hurricane Katia, TS Lee, Hurricane Maria, Hurricane Nate, Hurricane Ophelia, Hurricane Philippe, Hurricane Rina, and TS Sean.

Hurricane Irene was the only hurricane to hit the United States in 2011, and the first one to do so since Ike struck southeast Texas in 2008. Irene was the most significant tropical cyclone to strike the northeast U.S. since Hurricane Bob in 1991.

There are no active tropical cyclones in the Atlantic, Gulf of Mexico, or the Caribbean Sea

PDC Hazard Atlas displaying the Altantic Ocean, with an area of disturbed weather with a 20% chance of developing into a tropical cyclone...circled in yellow

Tropical Weather Outlook

NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
700 PM EDT WED NOV 30, 2011

FOR THE NORTH ATLANTIC…CARIBBEAN SEA AND THE GULF OF MEXICO:

A LOW PRESSURE SYSTEM LOCATED ABOUT 500 MILES SOUTH-SOUTHEAST OF BERMUDA IS PRODUCING AN AREA OF GALE-FORCE WINDS NORTH AND EAST OF THE CENTER. WHILE THE ASSOCIATED SHOWER ACTIVITY HAS BECOME A LITTLE MORE CONCENTRATED DURING THE PAST FEW HOURS…UPPER-LEVEL WINDS ARE NOT FAVORABLE FOR SIGNIFICANT DEVELOPMENT…AND THE LOW IS EXPECTED TO MERGE WITH A COLD FRONT DURING THE NEXT DAY OR TWO.  THIS SYSTEM HAS A LOW CHANCE…20 PERCENT…OF BECOMING A SUBTROPICAL CYCLONE DURING THE NEXT 48 HOURS AS IT MOVES NORTHWARD AT 15-20 MPH.

ELSEWHERE…TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS.

NHC graphical Tropical Weather Outlook Mapshowing the area under investigation above

Atlantic Ocean

There are no active tropical cyclones

Caribbean Sea

There are no active tropical cyclones

NOAA satellite image of the Caribbean Sea

Gulf of Mexico

There are no active tropical cyclones

Latest satellite image of the Gulf of Mexico