August 31st, 2009

Update: Tropical Storm Danny

Posted at 7:19 AM ET

small-aug31-tropical-storm-dannyDanny was reported to have become absorbed by an extra-tropical depression over North Carolina early on August 29, 2009. The National Hurricane Centre (NHC) reported that at 09:00 UTC on 29 August, the remnants of Danny were located around 80 miles (130 kilometers) southeast of Cape Hatteras, North Carolina and around 540 miles (875 kilometers) south-southwest of Nantucket, Massachusetts. As of 09:00 UTC on August 29, the tropical storm watch for the North Carolina coast from Cape Lookout northward to Duck, including the Pamlico and Albemarle sounds, had been discontinued.

The NHC forecasted the extra-tropical low to move rapidly towards the north-northeast and then northeast at around 30 mph (48 kmph) during the course of the August 29 to August 30. The NHC advised that large swells from the extra-tropical low were expected to produce dangerous surf conditions and life-threatening rip currents along the U.S. east coast during the course of the weekend. According to reports, New England and the Canadian Maritime provinces of Nova Scotia and New Brunswick were warned to monitor the progress of the low-pressure system as it moves northward.


Hazard data illustrated in the CAT-i map was taken from i-aXs®, Guy Carpenter’s web-based risk management platform. i-aXs users can view impacted areas on any map as well as see how their portfolios were affected. Please contact your broker or Instrat® representative for assistance or go to for further information.

Contrary to earlier expectations, Danny did not reach hurricane status on its approach to the U.S. east coast. Although no damage has been attributed to Danny, reports said that the heavy rain combined with dangerous currents emptied beaches on the U.S. east coast for a second consecutive weekend. As of August 30, a flood watch remained in effect for parts of Massachusetts following the heavy rain. Beaches were also ordered to remain closed and ferry services in and around Boston were cancelled.

Elsewhere in New York’s Long Island, Nassau County’s health department reportedly closed 20 beaches on Sunday due to the heavy rainfall. The storm water runoff from the passing remnants of Danny had the potential to cause sewage discharges and elevated bacteria levels along the Long Island sound.

Click here to read the previous update on Tropical Storm Danny >>

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Sources: National Hurricane Center, WSI, Agence France Presse, Associated Press

Guy Carpenter’s Instrat® department provides CAT-i reports for major natural catastrophes worldwide. These reports cover catastrophes including worldwide tropical cyclones, earthquakes, major UK and European floods and any other natural event that is likely to incur a significant loss to the (re)insurance industry. Please email if you wish to be added to the free email distribution list.

Instrat also provides RISK-i reports for major technological or man-made events worldwide. These reports cover risks to property, transport and life including explosions, fires, crashes, engineering disasters and terrorist attacks that are likely to incur a significant loss to the (re)insurance industry. Please email if you wish to be added to the free email distribution list.

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