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6.5 Million U.S. Homes Worth Nearly $1.5 Trillion at Risk of Hurricane Storm Surge Damage

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Storm Surge Flooding MISHELLA / Shutterstock.com

More than 6.5 million homes along the U.S. Atlantic and Gulf coasts are at risk of storm surge inundation, representing nearly $1.5 trillion in total potential reconstruction costs, according to Corelogic’s 2014 Storm Surge Report. Of that risk, more than $986 billion is concentrated within 15 major metropolitan areas.

While many homes and businesses most vulnerable to hurricane damage are in Federal Emergency Management Agency flood zones, these represent just a fraction of the structures that suffer a hurricane’s effects.

Homeowners who live outside the FEMA flood zones typically do not carry flood insurance, given that there is no mandate to do so, and therefore may not be aware of the potential risk storm surge poses to their properties, Corelogic explains.

Uncertainty about the geographical and meteorological risks may lull many into a false sense of safety.
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“This year’s season is projected to be slightly below normal in hurricane activity, but the early arrival of Hurricane Arthur on July 3 is an important reminder that even a low-category hurricane or strong tropical storm can create powerful riptides, modest flooding and cause significant destruction of property,” said Dr. Thomas Jeffery, senior hazard scientist for CoreLogic Spatial Solutions.

Florida ranks number one for the highest number of homes at risk of storm surge damage, with nearly 2.5 million homes at various risk levels and $490 billion in total potential exposure to damage. Here’s how all 19 states studied stack up, based on number of homes at risk:

State Table (Ranked by Number of Homes at Risk)

At the local level, the New York metropolitan area (including northern New Jersey and Long Island) contains not only the highest number of homes at risk for potential storm surge damage (687,412), but also the highest total reconstruction value of homes exposed, at more than $251 billion. Take a look at the storm surge risk for the top 15 metro areas:

Storm Surge Risk for Top 15 Metro Areas

Corelogic also noted variation in the costs of rebuilding, which does not directly correlate to the amount of property at risk. The total reconstruction cost value of homes along the Atlantic coast is nearly 1 billion, for example, which is approximately double the value of at-risk properties in the Gulf region’s 5 billion.

New Year, New Natural Disaster Emergency Plans

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Along with January renewals and analyzing whether existing policies offer sufficient coverage, the new year is a perfect reminder to review company-wide emergency plans. While 2013 may have been a relatively light year for catastrophe losses, there’s no reason to assume 2014 will be, too.

Check out this infographic from Boston University’s Masters in Specialty Management program for a jump-start on identifying the risks of natural disaster and updating plans for how to handle any emergency:

Survive a Natural Disaster

 

Supertyphoon Haiyan Devastates Philippines

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Supertyphoon Haiyan strikes the Philippines

Supertyphoon Haiyan hit the Philippines on Friday, leaving at least 10,000 residents dead and hundreds of thousands without reliable food, shelter or water. One of the strongest storms ever recorded, Haiyan’s winds surpassed 140 miles per hour, bringing record storm surges. The full extent of the damage remains uncertain, with communication and transportation severely restricted.

The World Bank has called the Philippines one of the most hazard-prone countries in the world. Closed roads and airports restricted aid efforts after Supertyphoon Haiyan, and communication failures posed some of the greatest challenges to both assessing and recovering from damage.

“Under normal circumstances, even in a typhoon, you’d have some local infrastructure up and some businesses with which you can contract,” Praveen Agrawal, the World Food Program’s Philippines representative and country director, told the New York Times. “Being as strong as it was, it was very much like a tsunami. It wiped out everything. It’s like starting from scratch” in terms of delivering the aid, he said.

The United Nations has set aside over $300 million to help with the country’s recovery from Haiyan over the next six months, and three dozen individual nations and international organizations have pledged financial and humanitarian assistance. The United States recalled thousands of sailors from shore leave back to the USS George Washington, a massive aircraft carrier currently docked in Hong Kong, to use its 80 aircraft to help deliver supplies and evacuate victims in the Philippines’ hardest-hit islands.

Yet with the broad scope of damage to critical infrastructure, the process has been slow. In the major city of Tacloban, for example, the traffic control tower at one of the country’s biggest airports was destroyed, forcing all aircraft to land by sight, further slowing distribution of food and water. Officials opened smaller airstrips, focusing on safely reopening transportation routes as the hundreds of thousands of evacuees continue to face extreme water shortage. This shortage further compounds the dangers authorities face in recovery, as health officials grow more concerned about water-borne diseases. Most notably, the lack of clean drinking and bathing water in crowded evacuation centers brings risk of diarrhea, leptospirosis and dengue.

Officials are looking forward while managing the catastrophic fallout. According to the Wall Street Journal:

Finance Secretary Cesar Purisima acknowledged that the destruction wrought by the disaster on an area that contributes 12.5% to gross domestic product could shave off as much as a full percentage point to economic growth next year, when the government targets GDP expansion of at least 6.5%. He is hopeful that the adverse effect on growth will be cushioned, if not offset, by the reconstruction spending.

“From a fiscal standpoint, we do have fiscal space to spend for reconstruction. The estimates are preliminary, but we need to invest significantly on infrastructure,” Mr. Purisima said.

The New York Times reported:

HSBC Global Research said that the typhoon probably destroyed half the sugar cane production areas in Leyte Province, and that all told, 3.5 percent of the nation’s sugar cane output was probably lost. It also warned of inflationary shocks to the Philippine economy in the coming months, as supply chains are disrupted.

But given the general health of the Philippine economy and the fact that the typhoon affected geographic areas and sectors like agriculture that are not major drivers of the nation’s output, HSBC said, “The economic impact will be limited.”

Citi Research estimated that infrastructure damage will probably run into billions of pesos, exceeding $70 million.

In Warsaw on Monday, some delegates at United Nations talks on a global climate treaty suggested that global warming was responsible for making Haiyan such a devastating storm. Naderev Saño, the chief representative of the Philippines at the conference, told the New York Times, “What my country is going through as a result of this extreme climate event is madness; the climate crisis is madness.”

Scientists cannot be certain of the overall impact of climate change on severe weather like hurricanes and typhoons, but have noted that more powerful storms will continue as the climate changes. With winds of at least 140 miles an hour, Typhoon Haiyan is considered one of the strongest storms to make landfall. “As you warm the climate, you basically raise the speed limit on hurricanes,” said M.I.T. atmospheric scientist Kerry A. Emanuel.

The powerful storm surges recorded are also likely part of a new reality in major storms. “When you strip everything else away, we’re seeing a general rise in sea level,” James P. Kossin, atmospheric scientist at the National Climatic Data Center, told the Times. “There’s no question that storm surge is going to be compounded.”

Colorado Flood Damage Estimated at Over $2 Billion

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Colorado River at Flood Level

Economic damages from the recent flooding in Colorado are expected to surpass $2 billion, according to a recent report from catastrophe risk modeler Eqecat. Most of that financial burden will fall on residents because very little flood risk is insured in the state.

Between 1,500 and 1,800 homes have been destroyed and thousands of homes have been damaged, leaving more than 10,000 people displaced. The estimated total cost to repair destroyed homes averages $300 million and early reviews of residential flood damage indicate an average of $20,000 to restore each of the 17,500 flooded homes that were not destroyed. But because of exclusions to the basic homeowners insurance policy, most of the losses will not be covered by insurance.

Historically, a very small portion of homeowners purchase flood insurance on homes outside of the 100-year flood zones outlined by the U.

S. National Flood Insurance Program, which provides insurance as part of a mortgage. Of the 17 counties impacted, most of the areas are not within defined flood zones.

President Obama declared a major disaster in nine of the hardest-hit counties, making residents eligible for direct federal grants to repair their flood-damaged homes, replace personal property and provide rental assistance, Reuters reported. This status also allows workers left jobless by the disaster to claim unemployment payments of up to 26 weeks and makes special low-interest loans available to farmers and small businesses to help cover their uninsured flood losses.

While these measures may help with immediate need, the extensive damage will require months of recovery and more rain is currently expected to cause rivers to crest another foot above flood stage today. With hundreds of miles of road flooded and many bridges and dams damaged or destroyed, Eqecat estimated losses to commercial and government properties and related expenses to total around $1 billion. Colorado officials announced a Dec.

1 target to complete temporary fixes to at least some of the heavily damaged roads, according to the Weather Channel. State highway crews and National Guard troops have already begun work to repair highways to mountain towns cut off by the flooding – roads that will only lead to more treacherous situations in remote areas as winter approaches.

Residents of one town have been told they will be displaced for up to six months, according to NBC News. Lyons town administrator Victoria Simonsen told a public meeting last week that E. coli bacteria had contaminated the drinking water system and the wastewater system incurred at least $1 million in damage, leaving the town unlivable for the foreseeable future.

This morning, authorities announced the eighth confirmed death from the flooding. Reuters reported that the search for hundreds of missing residents is winding down, with all but a half-dozen people now accounted for.