FLOODS AND FLASH FLOODS
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(Based on the FEMA
WWW flood pages
)
NOAA
Flash Flood Safety Guidelines |
EMERGENCY INFORMATION
- Flood waters can be extremely dangerous.
The force of six inches of swiftly moving water can knock people
off their feet. The best protection during a flood is to leave
the area and go to shelter on higher ground.
- Flash flood waters move at very fast speeds
and can roll boulders, tear out trees, destroy buildings, and
obliterate bridges. Walls of water can reach heights of 10 to
20 feet and generally are accompanied by a deadly cargo of debris.
The best response to any signs of flash flooding is to move immediately
and quickly to higher ground.
- Cars can be easily be swept away in just
2 feet of moving water. If flood waters rise around a car, it
should be abandoned. Passengers should climb to higher ground.
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DANGER ZONES
Floods and flash floods can occur virtually
anywhere. Communities particularly at risk are those located
near water (the rivers,creeks, canals or lakes), in low-lying
areas, or downstream from a dam or levee. Another risk area is
upstream, from large culverts or out falls. |
WHAT IS A FLOOD?
Floods are the most common and widespread
of all natural disasters--except fire. Much of Salt Lake County
is susceptible to flooding after heavy rains, heavy thunderstorms,
or tropical weather such as a depression, tropical storm or hurricane.
Floods can be slow, or fast rising but generally develop over
a period of days. |
WHAT IS A FLASH
FLOOD?
Flash floods usually result from intense
storms dropping large amounts of rain in a short time. Flash
floods occur with little or no warning and can reach full peak
in only a few minutes. |
HELP YOUR COMMUNITY
GET READY
The media can raise awareness about floods
and flash floods by providing important information to the community.
Here are some suggestions:
- Publish a special section in your local
newspaper with emergency information on floods and flash floods.
Localize the information by printing the phone numbers of local
emergency services offices, the American Red Cross, and hospitals.
- Interview local officials about land use
management and building codes in floodplains.
- Work with local emergency services and
American Red Cross officials to prepare special reports for people
with mobility impairments on what to do if an evacuation is ordered.
- Periodically inform your community of
local public warning systems.
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DID YOU KNOW...
- If your home has flooded before, it is
likely that it will do so again, unless YOU take action to prevent
it!
- Individuals and business owners can protect
themselves from flood losses by purchasing flood insurance through
National Flood Insurance Program (NFIP). Homeowner's policies
DO NOT cover flood damage. Information is available through
local insurance agents and the Emergency Management Department.Flood
insurance DOES NOT go into effect until 30 days after you apply!
- When heavy rains impact a swamp or marsh,
it floods, and the lowest parts of the swamp or marsh flood the
most. It is not technically or environmentally possible to drain
these areas to the point were flooding will not happen!
- Since 1979 new construction has been required
to meet elevation requirements of the NFIP. Homes built before
1979 may be more likely to experience flooding because elevation
was not required! If your home or business is lower than those
around you, it means your risk is greater. This is not
because the other buildings are higher, but because yours is
lower!
- Flooding has caused the deaths of more
than 10,000 people since 1900. Property damage from flooding
now totals over $1 billion each year in the United States.
- In the worst single natural disaster ever,
6,000 people drowned in a storm surge at Galveston, Texas in
1900.
- More than 2,000 people died around Lake
Okeechobee in the 1928 hurricane when the levees broke under
the stress of a storm surge on the lake.
- More than 2,200 lives were lost as a result
of the Johnstown, Pennsylvania flood of 1889. This flood was
caused by an upstream dam failure.
- Nearly 9 of every 10 Presidential disaster
declarations result from natural phenomena in which flooding
was a major component.
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