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Floods 101 | National Geographic


over the past hundred years no other

over the past hundred years no other natural disaster in the US has caused

natural disaster in the US has caused

natural disaster in the US has caused more death and destruction than floods

more death and destruction than floods

more death and destruction than floods they can happen anyplace any day anytime

they can happen anyplace any day anytime

they can happen anyplace any day anytime and they will likely only get worse as

and they will likely only get worse as

and they will likely only get worse as Pippa cluster around coastal regions and

Pippa cluster around coastal regions and

Pippa cluster around coastal regions and flood plains our growing population will

flood plains our growing population will

flood plains our growing population will confront the awesome power of water for

confront the awesome power of water for

confront the awesome power of water for thousands of years farmers have depended

thousands of years farmers have depended

thousands of years farmers have depended on seasonal floods the water’s irrigated

on seasonal floods the water’s irrigated

on seasonal floods the water’s irrigated their props and fertilize their lands

their props and fertilize their lands

their props and fertilize their lands today excess water is channeled into

today excess water is channeled into

today excess water is channeled into reservoirs and power hydroelectric dams

reservoirs and power hydroelectric dams

reservoirs and power hydroelectric dams but when water levels rise suddenly far

but when water levels rise suddenly far

but when water levels rise suddenly far more than the ground can absorb a flood

more than the ground can absorb a flood

more than the ground can absorb a flood occurs flash floods are a perfect

occurs flash floods are a perfect

occurs flash floods are a perfect example sudden storms unleash a

example sudden storms unleash a

example sudden storms unleash a torrential downpour

torrential downpour

torrential downpour the runoff moves with surprising force

the runoff moves with surprising force

the runoff moves with surprising force at a depth of two feet the water can

at a depth of two feet the water can

at a depth of two feet the water can push aside a car

push aside a car

push aside a car in fact half of all deaths from flash

in fact half of all deaths from flash

in fact half of all deaths from flash floods and power vehicles but floods

floods and power vehicles but floods

floods and power vehicles but floods occur in many other ways

occur in many other ways

occur in many other ways heavy rains and thawing snow fall and

heavy rains and thawing snow fall and

heavy rains and thawing snow fall and over

over

over storm surge is caused by hurricanes and

storm surge is caused by hurricanes and

storm surge is caused by hurricanes and tsunamis inundate the coastline

tsunamis inundate the coastline

tsunamis inundate the coastline landslides and mudflows can displace

landslides and mudflows can displace

landslides and mudflows can displace large volumes of water dams great levees

large volumes of water dams great levees

large volumes of water dams great levees fail in the Great Mississippi Flood of

fail in the Great Mississippi Flood of

fail in the Great Mississippi Flood of 1993 several of these factors came into

1993 several of these factors came into

1993 several of these factors came into play over 10,000 square miles of the

play over 10,000 square miles of the

play over 10,000 square miles of the Midwestern United States for overwhelmed

Midwestern United States for overwhelmed

Midwestern United States for overwhelmed with rain in a cruel twist the earthen

with rain in a cruel twist the earthen

with rain in a cruel twist the earthen dams known as levees along the Upper

dams known as levees along the Upper

dams known as levees along the Upper Mississippi River forced the water to

Mississippi River forced the water to

Mississippi River forced the water to float downstream faster and stronger

float downstream faster and stronger

float downstream faster and stronger communities further downriver were hit

communities further downriver were hit

communities further downriver were hit with the full brunt of the Mississippi

with the full brunt of the Mississippi

with the full brunt of the Mississippi two-thirds of all the levees were

two-thirds of all the levees were

two-thirds of all the levees were breached though towns rallied to protect

breached though towns rallied to protect

breached though towns rallied to protect their lives and livelihoods the damage

their lives and livelihoods the damage

their lives and livelihoods the damage was still immense over ten billion

was still immense over ten billion

was still immense over ten billion dollars in damages 56,000 homes flooded

dollars in damages 56,000 homes flooded

dollars in damages 56,000 homes flooded or destroyed and some 50

at the start of this century another

at the start of this century another powerful flood wreaked havoc this one

powerful flood wreaked havoc this one

powerful flood wreaked havoc this one coming from the sea the storm surges of

coming from the sea the storm surges of

coming from the sea the storm surges of Hurricane Katrina submerged 80% of the

Hurricane Katrina submerged 80% of the

Hurricane Katrina submerged 80% of the city of New Orleans over 1,800 people

city of New Orleans over 1,800 people

city of New Orleans over 1,800 people died in the floods the damage has been

died in the floods the damage has been

died in the floods the damage has been estimated at over eighty billion dollars

in some ways the New Orleans disaster

in some ways the New Orleans disaster was unique much of the city lies below

was unique much of the city lies below

was unique much of the city lies below sea level and despite years of warning

sea level and despite years of warning

sea level and despite years of warning the city was woefully unprepared to

the city was woefully unprepared to

the city was woefully unprepared to handle a breach of the levees which kept

handle a breach of the levees which kept

handle a breach of the levees which kept it dry

see levels may rise coastlines could

see levels may rise coastlines could erode rain patterns might change snow

erode rain patterns might change snow

erode rain patterns might change snow packs could melt and then the waters

packs could melt and then the waters

packs could melt and then the waters would rush in

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