2011 Storm Page

Community of Hillsborough
Animal and Agricultural Response Team

Hurricane Names for 2011:

Arlene

Bret

Cindy

Don

Emily

Franklin

Gert

Harvey

Irene

Jose

Katia

Lee

Maria

Nate

Ophelia

Philippe

Rina

Sean

Tammy

Vince

Whitney

 

Category One Hurricane

  • Maximum Sustained Wind Speed: 74-95 miles per hour
  • Damage Category: Minimal
  • Approximate Pressure: Above 980 mb
  • Approximate Storm Surge: 3-5 feet
    		• Category Two Hurricane
  • Maximum Sustained Wind Speed: 96-110 miles per hour
  • Damage Category: Moderate
  • Approximate Pressure: 979-965 mb
  • Approximate Storm Surge: 6-8 feet
    		•
    Category Three Hurricane
  • Maximum Sustained Wind Speed: 111-130 miles per hour
  • Damage Category: Extensive
  • Approximate Pressure: 964-945 mb
  • Approximate Storm Surge: 9-12 feet

    • Category Four Hurricane

  • Maximum Sustained Wind Speed: 131-155 miles per hour
  • Damage Category: Extreme 
  • Approximate Pressure: 944-920 mb
  • Approximate Storm Surge:13-18 feet

    • Category Five Hurricane

  • Maximum Sustained Wind Speed: Above 155 miles per hour
  • Damage Category: Catastrophic
  • Approximate Pressure: Below 920 mb
  • Approximate Storm Surge: More than 18 feet

    • On December 8, 2010, Klotzbach's team issued its first extended-range forecast for the 2011 season, predicting well above-average activity with 17 named storms, nine hurricanes, and five major hurricanes.

    As well, the team expected an accumulated cyclone energy (ACE) value of approximately 165, citing that El Niño conditions were unlikely to develop by the start of the season.

    Lastly, the team noted a higher chance for storms to make landfall in the United States than in 2010. In addition, Tropical Storm Risk (TSR), a public consortium that comprises experts on insurance, risk management and seasonal climate forecasting at University College London, issued an extended-range forecast a few days prior to that of CSU, with similar estimates for the year. In its report, TSR noted that tropical cyclone activity could be about 40% above the 1950–2010 average, with 15.6 (±4.3) tropical storms, 8.4 (±3.0) hurricanes, and 4.0 (±1.7) major hurricanes anticipated, and a cumulative ACE index of 141 (±58).

    Informative Links:

     

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