2011 Hurricane / Tropical Data for Atlantic

via unisys.com

Individual Storm Summary

Winds in knots, pressure in millibars,
category is based on Saffir-Simpson scale.

# Name Date Wind Pres Cat  
1 Tropical Storm ARLENE 29 JUN-01 JUL 55 993  
2 Tropical Storm BRET 17-22 JUL 55 996  
3 Tropical Storm CINDY 20-22 JUL 50 1000  
4 Tropical Storm DON 27-30 JUL 45 998  
5 Tropical Storm EMILY 01-07 AUG 45  
6 Tropical Storm FRANKLIN 12-13 AUG 40 1004  
7 Tropical Storm GERT 14-16 AUG 50 1000  
8 Tropical Storm HARVEY 19-22 AUG 50 994  
9 Hurricane-3 IRENE 20-29 AUG 105 942 3  
10 Tropical Depression TEN 25-26 AUG 30 1007  
11 Tropical Storm JOSE 28-29 AUG 40 1007  
12 Hurricane-4 KATIA 29 AUG-10 SEP 115 4  
13 Tropical Storm LEE 02-05 SEP 50 986  
14 Hurricane-1 MARIA 06-16 SEP 70 979 1  
15 Tropical Storm NATE 07-11 SEP 60 994  
16 Hurricane-4 OPHELIA 21 SEP-03 OCT 120 940 4  
17 Hurricane-1 PHILIPPE 24 SEP-08 OCT 80 976 1  
18 Hurricane-2 RINA 23-28 OCT 95 966 2  
19 Tropical Storm SEAN 08-11 NOV 55 983  

via NOAA

The 2011 Hurricane Season in 4.5 minutes

The 2011 Atlantic hurricane season officially ends on Nov. 30 and produced a total of 19 tropical storms of which seven became hurricanes, including three major hurricanes. This level of activity matched NOAA’s predictions and continues the trend of active hurricane seasons that began in 1995.

Surprisingly, none of the first eight tropical storms reached hurricane status, a record since reliable reports started in 1851. Hurricane Irene‘s effects in the Caribbean and the United States led to 43 deaths and accounted for the bulk of this season’s damage at $7.3 billion. Irene was the first landfalling hurricane in New Jersey in 108 years. Hurricane Katia had far-reaching effects causing severe weather in Northern Ireland and Scotland and power blackouts as far east as Saint Petersburg in Russia. Tropical Storm Lee caused major flooding in Pennsylvania, New York and into the Canadian provinces of Quebec and Ontario. The strongest storm of the season was Ophelia, which reached category four strength in the Atlantic Ocean east of Bermuda.

An integral part of NOAA’s ability to monitor and predict hurricane formation and movement is the data that is provided by the GOES satellite, with its visible imagery, infrared sensors, and sounding capabilities. This animations merges both the visible and infrared imagery taken by the GOES East (GOES-13) satellite every 30 minutes over the Northern Hemisphere from June 1 — November 28, 2011.


Active 2011 hurricane season breaks ‘Hurricane Amnesia’

Irene the first hurricane to hit U.S. in three years; Northeast reminded it’s also vulnerable

November 28, 2011

The 2011 Atlantic hurricane season officially ends Wednesday, having produced a total of 19 tropical storms of which seven became hurricanes, including three major hurricanes. This level of activity matched NOAA’s predictions and continues the trend of active hurricane seasons that began in 1995.

The 19 tropical storms represent the third-highest total (tied with 1887, 1995, and 2010) since records began in 1851 and is well above the average of 11. However, the number of hurricanes and major hurricanes is only slightly above the average of six and two, respectively. This year’s totals include a post-storm upgrade of Tropical Storm Nate to hurricane status, and the addition of a short-lived, unnamed tropical storm that formed in early September between Bermuda and Nova Scotia. This unnamed storm, along with several other weak, short-lived named storms, could have gone undetected without modern satellite technology.

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

“Irene broke the ‘hurricane amnesia’ that can develop when so much time lapses between landfalling storms,” said Jack Hayes, Ph.D., director of NOAA’s National Weather Service. “This season is a reminder that storms can hit any part of our coast and that all regions need to be prepared each and every season.”

As far as landfalling major hurricanes (Category 3, 4 or 5 with top winds of 111mph and greater) are concerned, the lull continues. 2011 marks a record six straight years without one hitting the United States. The last one to do so was Wilma in 2005. Nonetheless, wind is not the only threat with tropical systems as proven by Irene and Lee, which caused deadly and destructive flooding. On average, more than half of the fatalities related to tropical systems are due to flooding. continue reading http://www.noaanews.noaa.gov/stories2011/20111128_endofhurricaneseason_2011.html

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