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Rachelle's Weather Blog

By Rachelle Oblack, About.com Guide to Weather

The Types of Floods

Sunday June 29, 2008
There are multiple ways flooding can occur. Flash floods are usually the most lethal. Heavy downpours, often in mountainous highlands, can lead to surges of water that turn dry river beds or flood plains into raging torrents in minutes. Local communities usually have little time to flee to higher land, and homes in the water's path can be totally destroyed. Roads and railways are often made impassable, making delivery of aid much more difficult.

Other slow onset floods like those that hit Bangladesh every year can also be lethal but tend to give people much more time to move to higher ground. When deaths occur, they are much more likely to be due to disease, malnutrition or snakebites. In 2007, floods in China displaced tens of thousands of snakes into neighboring areas, increasing the risk of attacks. Slower floods are also less likely to sweep away property, although it may still be damaged or destroyed. Areas are likely to remain under water for much longer. In India in 2007, some were unable to return to their homes for months.

Storms, cyclones and other maritime extreme weather can also produce storm surges, which overcome defenses and swamp coastal areas, as happened in New Orleans in 2005 after Hurricane Katrina, Cyclone Sidr in November 2007, and Cyclone Nargis in Myanmar in May 2008.

Reference: Reuters Alertnet.org

Comments

February 13, 2009 at 8:20 am
(1) Emily says:

This is good information thanks for the help with me project

February 13, 2009 at 3:41 pm
(2) weather says:

You are very welcome. Glad it helped.

March 15, 2009 at 9:29 pm
(3) karina says:

thank you, this really helped me with my geography project!

March 24, 2009 at 6:06 pm
(4) xolani xulu says:

it’s wonderful and I found it easy to understand and follow.thanks for giving me clarity as far as flash &storm surge is concerned

April 13, 2009 at 10:13 am
(5) kori says:

thank you for the information im cool

p.s thank you

April 13, 2009 at 10:16 am
(6) kori says:

this is good information thank u for helping me and thanks

April 29, 2009 at 12:57 pm
(7) magz x says:

Cheers’s for the info really help with geography project :) x

May 2, 2009 at 2:26 am
(8) sonal says:

Thanx for th einformation . This website worx !!!!

May 9, 2009 at 1:37 pm
(9) Alexis says:

I have always went to this website for weather info!!

May 25, 2009 at 3:48 am
(10) aaron says:

thanx you helped me with my infomation report!:D

June 11, 2009 at 5:15 am
(11) Chaitanya says:

Thank you it was truly helping.. god bless

October 8, 2009 at 6:44 pm
(12) aleigha murphy says:

thinsk the help with my homework

October 22, 2009 at 5:28 am
(13) jayaram.k.h says:

The information you given is very pretty. But you could have written something about Tsunami effect in Indonesia and India!!!!!. Any how nice

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