One of the most destructive threats out there is flooding and the most at risk are major cities along the coast as well as inland. As we’ve seen with the latest Louisiana flooding this month. Record-setting rainfall and flooding in southern Louisiana have been calculated at NASA with data from satellites. The rains were so heavy that one meteorologist referred to the event as a “rain bomb” on Twitter. An extremely severe rainfall event hit the states of Louisiana and southern Mississippi when a very slow moving low pressure system continuously pulled tropical moisture from the Gulf of Mexico.
This disaster is being called the worst natural disaster since Hurricane Sandy, it might make sense to be informed by knowing where the most flood risks are so I am posting about some tools that might be of benefit to others.
NOAA’s Sea Level Rise Viewer is a web mapping tool to visualize community-level impacts from coastal flooding or sea level rise (up to 6 feet above average high tides). Photo simulations of how future flooding might impact local landmarks are also provided, as well as data related to water depth, connectivity, flood frequency, socio-economic vulnerability, wetland loss and migration, and mapping confidence.
Anyone interested in volunteering for this effort should go to VolunteerLouisiana.gov.
The costliest US floods (credit CNN) :
Hurricane Katrina in 2005: $16.3 billion
Superstorm Sandy in 2012: $8.3 billion
Hurricane Ike in 2008: $2.7 billion
Hurricane Ivan in 2004: $1.6 billion
Hurricane Irene in 2011: $1.3 billion
The following maps from Caliper Maptitude maps help to illustrate the regions most at risk to flood threats.
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