Thursday, July 10, 2014

INFOGRAPHIC: How Are Hurricanes Rated?

By Katy Galimberti, AccuWeather.com Staff Writer
July 10,2014; 7:13PM,EDT
 
 n an effort to better inform the public about potential hurricane damage, Herbert Saffir and Bob Simpson invented their own measuring classification in 1969.
Saffir, a consulting engineer, and Simpson, the director of the National Hurricane Center at the time, create the Saffir-Simpson Hurricane Scale. Broken down into five categories, hurricanes were given a level of intensity based on sustained wind speeds.
Also included in the levels are potential property damage and flooding that should be expected with each set of wind strength.
Used by the National Oceanic and Atmospheric Administration, the scale can be interpreted easily by emergency managers and the public alike.
In 2010, NOAA's National Hurricane Center reorganized the scale, pulling emphasis on storm surge and atmospheric pressure and putting more focus on wind. The official title of the scale was appropriately changed to the Saffir-Simpson Hurricane Wind Scale.
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Hurricane classification

UNDERSTANDING THE SAFFIR-SIMPSON HURRICANE WIND SCALE

Used as a tool for alerting the public about possible impacts of various intense hurricanes, the SSHWS provides examples of damage equated with different levels of wind intensity. 
Sustained WindsPast Hurricane ExamplesCategoryFive:157+mphCategoryFour:130-156mphCategoryThree:111-129mphCategoryTwo:96-110mphCategoryOne:74-95mph

Hurricane Katrina, 2005

Category FiveLargepercentageofhomesdestroyed.Fallentreesandpowerpoles.Poweroutagesforweekstomonths.Uninhabitableareaforweekstomonths.Category FourLossofroofstructure,exteriorwallsandseverehomedamage.Snappedtreesandpowerpolesdowned.Poweroutagesforweekstomonths.Uninhabitableareaforweekstomonths.Category ThreeRemovalofroofdecking,majordamagetohomes.Treessnappedanduprooted.Electricityandwaterunavailableforseveraldaystoweeks.Category TwoMajorroofandsidingdamagetohomes.Shallowrootedtreescouldsnaporuproot.Near-totalpowerlossexpectedwithoutagesfromdaystoweeks.Category OneRoof,shinglesandgutterdamagetohomes.Largetreebrancheswillsnap,shallowtreesmayuproot.Poweroutagescouldlastuptoseveraldays.


rancheswillsnap,shallowtreesmayuproot.Poweroutagescouldlastuptoseveraldays.

On Social Media

CPPWindBob

Strictly speaking, the Saffir-Simpson scale does not classify storms weaker than hurricanes bit.ly/1tbENUR

nhmsc

Curious about how hurricanes are rated? Look no further! bit.ly/1nigsrR #Saffir #Simpson #Hurricane
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