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New York, Cattaraugus

Areal Flood Warning

Statement as of 9:07 AM EST on November 23, 2014

Expires 4:15 PM EST on November 24, 2014


... The Flood Warning remains in effect until 415 PM EST Monday for
Erie... northern Chautauqua... Wyoming... southern Genesee and
northwestern Cattaraugus counties...

Temperatures have steadily risen overnight with most readings in the
lower to mid 40s this morning. Temperatures will continue to climb
today reaching around 50 degrees this afternoon... before reaching
near 60 degrees on Monday.

While rainfall will generally be a third inch or less through
tonight... snowmelt is well underway and will continue through
Monday. It is this snowmelt that will ultimately cause the flooding
concerns... with the greatest amount of snowmelt occurring tonight
and Monday.

Core samples of the deep snowpack at the start of the weekend
indicated that as much as 5 to 6 inches of water was locked in
place... but as temperatures continue to climb... this water will be
released... and in some cases fairly rapidly.

Since many storm drains are snow clogged... many urban areas will
likely be the first to experience flooding with several feet of
water possibly accumulating on some stretches of Road. Residential
basements will start to flood during this time as well.

The threat for structural failure will increase through Monday.

Area tributaries... particularly Buffalo Creek... Cazenovia creek...
Cayuga creek and Ellicott creek... will take a bit longer to
experience significant rises with the potential to reach at least
minor flood stage later tonight and Monday.

In addition... very strong winds are expected to develop Monday and
Monday night. These winds could bring down some trees and power
lines resulting in scattered power outages. This will cause sump
pumps to fail.

A Flood Warning means that flooding is imminent or has been reported.
Stream rises will be slow and flash flooding is not expected.
However... all interested parties should take necessary precautions
immediately.

Precautionary/preparedness actions...

Excessive runoff from heavy rainfall will cause elevated levels on
small creeks and streams... and ponding of water in urban areas...
highways... streets and underpasses as well as other poor drainage
areas and low lying spots.

Do not drive your vehicle into areas where the water covers the
roadway. The water depth may be too great to allow your car to cross
safely. Move to higher ground.


Lat... Lon 4242 7946 4250 7935 4256 7916 4271 7904
      4271 7899 4276 7889 4279 7886 4290 7891
      4301 7849 4302 7795 4253 7807 4253 7848
      4244 7877 4230 7968



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