» 
Arabic Bulgarian Chinese Croatian Czech Danish Dutch English Estonian Finnish French German Greek Hebrew Hindi Hungarian Icelandic Indonesian Italian Japanese Korean Latvian Lithuanian Malagasy Norwegian Persian Polish Portuguese Romanian Russian Serbian Slovak Slovenian Spanish Swedish Thai Turkish Vietnamese
Arabic Bulgarian Chinese Croatian Czech Danish Dutch English Estonian Finnish French German Greek Hebrew Hindi Hungarian Icelandic Indonesian Italian Japanese Korean Latvian Lithuanian Malagasy Norwegian Persian Polish Portuguese Romanian Russian Serbian Slovak Slovenian Spanish Swedish Thai Turkish Vietnamese

definitions - Flash_flood

flash flood (n.)

1.a sudden local flood of great volume and short duration

   Advertizing ▼

definition (more)

definition of Wikipedia

synonyms - Flash_flood

flash flood (n.)

flashflood

   Advertizing ▼

Wikipedia

Flash flood

                   
  Driving through a flash-flooded road
  A flash flood after a thunderstorm in the Gobi, Mongolia

A flash flood is a rapid flooding of geomorphic low-lying areas—washes, rivers, dry lakes and basins. It may be caused by heavy rain associated with a storm, hurricane, or tropical storm or meltwater from ice or snow flowing over ice sheets or snowfields. Flash floods may occur after the collapse of a natural ice or debris dam, or a human structure such as a man-made dam, as occurred before the Johnstown Flood of 1889. Flash floods are distinguished from a regular flood by a timescale less than six hours. The temporary availability of water is often utilized by foliage with rapid germination and short growth cycle, and by specially adapted animal life.[1]

Contents

  Causes

Flash flooding occurs when precipitation falls too quickly on saturated soil or dry soil that has poor absorption ability. The runoff collects in low-lying areas and rapidly flows downhill. Flash floods most often occur in normally dry areas that have recently received precipitation, but may be seen anywhere downstream from the source of the precipitation, even many miles from the source. In areas on or near volcanoes, flash floods have also occurred after eruptions, when glaciers have been melted by the intense heat. Flash floods are known to occur in the highest mountain ranges of the United States and are also common in the arid plains of southwestern United States. Flash flooding can also be caused by extensive rainfall released by hurricanes and other tropical storms, as well as the sudden thawing effect of ice dams.[2][3] Human activities can also cause flash floods to occur. When dams, constructed for hydro-electricity, have failed, large quantities of water can be released and can destroy everything within its path.[3]

  Hazards

The United States National Weather Service gives the advice "Turn Around, Don't Drown" for flash floods; that is, it recommends that people get out of the area of a flash flood, rather than trying to cross it. Many people tend to underestimate the dangers of flash floods. What makes flash floods most dangerous is their sudden nature and fast moving water. A vehicle provides little to no protection against being swept away; it may make people overconfident and less likely to avoid the flash flood. More than half of the fatalities attributed to flash floods are people swept away in vehicles when trying to cross flooded intersections.[4] As little as 2 feet (0.61 m) of water is enough to carry away most SUV-sized vehicles.[5] The U.S. National Weather Service reported in 2005 that, using a national 30-year average, more people die yearly in floods, 127 on average, than by lightning (73), tornadoes (65), or hurricanes (16).[6]

In deserts, flash floods can be particularly deadly for several reasons. First, storms in arid regions are infrequent, but they can deliver an enormous amount of water in a very short time. Second, these rains often fall on poorly-absorbent and often clay-like soil, which greatly increase the amount of runoff that rivers and other water channels have to handle. These regions tend not to have the infrastructure that wetter regions have to divert water from structures and roads, such as storm drains, culverts, and retention basins, either because of sparse population, poverty, or because residents believe the risk by flash floods is not high enough to justify the expense. In fact, in some areas, desert roads frequently cross dry river and creek beds without bridges. From the driver's perspective, there may be clear weather, when unexpectedly a river forms ahead of or around the vehicle in a matter of seconds.[7] Finally, the lack of regular rain to clear water channels may cause flash floods in deserts to be headed by large amounts of debris, such as rocks, branches, and logs.

Deep slot canyons can be especially dangerous to hikers as they may be flooded by a storm that occurs on a mesa miles away, sweeps through the canyon, and makes it difficult to climb up and out of the way to avoid the flood.

  Significant flash floods

  • 1889: Johnstown Flood, more than 2,200 people dead
  • 1903: Heppner Flood of 1903; Oregon, United States: 247 dead, 25% of the city
  • 1938: Los Angeles Flood of 1938, California, U.S.: 115 dead
  • 1952: Lynmouth disaster, England: 34 dead
  • 1967: Flash flood in Lisbon, Portugal: 464 dead
  • 1971: Kuala Lumpur floods, Malaysia: 32 dead
  • 1972: The Black Hills flood, South Dakota, U.S.: 238 dead
  • 1976: The Big Thompson River flood, which killed 143 people in Colorado, U.S.
  • 2007: Sudan floods
  • 2009: September 26 in Metro Manila primarily Marikina city, Taguig City, and Pasig City; and many municipalities of the provinces of Rizal, Bulacan and Laguna taking more than a hundred lives and leaving thousands of affected residents homeless. It also submerged several municipalities under feet deep of water for several weeks.
  • 2011: Philippines, Cagayan de Oro and Iligan City, 17 December 2011. At least 1200 people killed as reported by Red Cross.See also Tropical Storm Washi

  See also

  Further reading

  References

  External links

   
               

 

All translations of Flash_flood


sensagent's content

  • definitions
  • synonyms
  • antonyms
  • encyclopedia

Dictionary and translator for handheld

⇨ New : sensagent is now available on your handheld

   Advertising ▼

sensagent's office

Shortkey or widget. Free.

Windows Shortkey: sensagent. Free.

Vista Widget : sensagent. Free.

Webmaster Solution

Alexandria

A windows (pop-into) of information (full-content of Sensagent) triggered by double-clicking any word on your webpage. Give contextual explanation and translation from your sites !

Try here  or   get the code

SensagentBox

With a SensagentBox, visitors to your site can access reliable information on over 5 million pages provided by Sensagent.com. Choose the design that fits your site.

Business solution

Improve your site content

Add new content to your site from Sensagent by XML.

Crawl products or adds

Get XML access to reach the best products.

Index images and define metadata

Get XML access to fix the meaning of your metadata.


Please, email us to describe your idea.

WordGame

The English word games are:
○   Anagrams
○   Wildcard, crossword
○   Lettris
○   Boggle.

Lettris

Lettris is a curious tetris-clone game where all the bricks have the same square shape but different content. Each square carries a letter. To make squares disappear and save space for other squares you have to assemble English words (left, right, up, down) from the falling squares.

boggle

Boggle gives you 3 minutes to find as many words (3 letters or more) as you can in a grid of 16 letters. You can also try the grid of 16 letters. Letters must be adjacent and longer words score better. See if you can get into the grid Hall of Fame !

English dictionary
Main references

Most English definitions are provided by WordNet .
English thesaurus is mainly derived from The Integral Dictionary (TID).
English Encyclopedia is licensed by Wikipedia (GNU).

Copyrights

The wordgames anagrams, crossword, Lettris and Boggle are provided by Memodata.
The web service Alexandria is granted from Memodata for the Ebay search.
The SensagentBox are offered by sensAgent.

Translation

Change the target language to find translations.
Tips: browse the semantic fields (see From ideas to words) in two languages to learn more.

last searches on the dictionary :

4548 online visitors

computed in 0.063s

   Advertising ▼

I would like to report:
section :
a spelling or a grammatical mistake
an offensive content(racist, pornographic, injurious, etc.)
a copyright violation
an error
a missing statement
other
please precise:

Advertize

Partnership

Company informations

My account

login

registration

   Advertising ▼

Flash Flood by DiAnn Mills 2005 Paperback (5.5 USD)

Commercial use of this term

Fend-all Flash Flood Emergency Eye Wash Refill Cartridge For Use (38.91 USD)

Commercial use of this term

Flash Flood by Diann Mills (2005 Paperback) Heartsong Presents (3.5 USD)

Commercial use of this term

1x Flash Flood - Magic the Gathering MTG Legends (0.99 USD)

Commercial use of this term

A Flash Flood Of Colour by Enter Shikari (CD, Jan-2012, Hopeless) (15.95 USD)

Commercial use of this term

ENTER SHIKARI Rubber Bracelet Wristband Common Dreads A Flash Flood of Colour (3.79 USD)

Commercial use of this term

1940 Press Photo View Of Flash Flood From Savannah River In Augusta Georgia (17.0 USD)

Commercial use of this term

Enter Shikari - Flash Flood Of Colour (2012) - Used - Compact Disc (7.48 USD)

Commercial use of this term

7x Flash Flood NM MTG Legends Italian ITLE Magic Gathering (3.06 USD)

Commercial use of this term

RAILROAD MAGAZINE,JAN. 1978 FLASH FLOODS AT MOJAVE GAP (9.99 USD)

Commercial use of this term

Vintage Super Soaker Lot - Max Infusion Backpack, Flash Flood, Helix, Vaporizer (69.99 USD)

Commercial use of this term

SUPER SOAKER Flash Flood Hasbro Blaster Toy LOT 4 Water Squirt Gun CPS BROKEN (24.99 USD)

Commercial use of this term

1949 Press Photo Turrialba Costa Rica flash floods destroy homes (22.0 USD)

Commercial use of this term

1939 Press Photo Aerial view of Salt Lick Kentucky after the flash floods (22.0 USD)

Commercial use of this term

Bayco 61 LED Night Stick Flash Flood Work Spot Light Energizer AA Battery (30.0 USD)

Commercial use of this term

MTG 4x Near Mint, English Flash Flood Chronicles Magic (1.0 USD)

Commercial use of this term

A Flash Flood Of Colour by Enter Shikari CD Jan-2012 Hopeless NEW (11.95 USD)

Commercial use of this term

Susan Slater - Flash Flood (2002) - Used - Trade Cloth (Hardcover) (3.99 USD)

Commercial use of this term