A flood watch remains in effect for Oswego, Jefferson, Lewis, Ontario, Wayne and northern Cayuga counties until late Friday night.
Flood Watches are issued to inform the public that the developing weather pattern is such that there is a potential for flooding over portions of our area. The occurrence of flooding is neither certain nor imminent. Check flood action plans, keep informed, and be ready to take necessary actions if a warning is issued or flooding is observed. A watch does not mean flooding is occurring. A warning is issued when flooding weather is imminent.
Here is what we are watching in this particular situation:
The combination of above freezing temperatures since late Thursday morning and continuing through Friday afternoon coupled with rain that has occurred overnight and additional rainfall that will occur Friday will likely cause even more melting all across our area. The rain and snowmelt could be enough to cause ice on rivers, streams, and creeks to lift and break up. When this occurs, these ice chunks float downstream and then could jam up where the waterway curves and narrows. As the ice jams the river, the water behind the ice jam then floods areas of land behind these ice jams.
Even though the flood watch is only up for areas of western and northern New York, isolated central New York areas still could see some localized poor drainage and ice jam river and stream flooding that normally occurs during thaws in the springtime. Having said that, areas east of Lake Ontario across sections of the North Country and the Tug Hill Plateau probably have a higher risk for localized flooding versus central New York.
There is between 1-3" of liquid equivalent water inside the snowpack across most of central New York. Many portions of the Tug Hill Plateau and far North Country have 3-6" of water equivalent water inside the snowpack with some isolated 6-10" liquid equivalent. At least some of this water will likely be released between Thursday and Friday creating this flooding potential. Since areas east of Lake Ontario has more water stored in the snowpack and because this area will likely get more rain than central New York, I am more concerned about flooding over areas north of Route 31.
When flood warnings are issued, then the threat for imminent danger is upon your area. Stay tuned for updates on this potential through the weekend.
If your area has a flood watch, here is what you should do:
-- Go about your normal activities, but be aware of the possibility of flooding developing if and/when heavy rain occurs.
-- Keep an eye on Interactive Doppler and Triple Doppler radars on CNYcentral.com.
-- Keep your phone with your CNYcentral mobile app turned on so if warnings are issued you will know.
-- Periodically check NBC-3, CBS-5 and CW-6 for updates on the weather and possible warnings.
-- Know which county you live in, and where you are in relation to streams, creeks or rivers, which can become killers in heavy rains.
-- If you live or work in an area which is prone to flooding, have a safe evacuation route to use if flooding occurs.
-- Have a battery operated radio, and several flashlights available and in working order.
The previous wind advisory has been cancelled.
Stay updated with this situation with these links
-- Interactive Doppler Radar:
-- Triple Doppler Radar:
-- Lightning Strikes
-- Watches/Warnings: (Make sure to hit the 'F5' key to refresh the page.)
-- Follow CNY Central Meteorologists on Twitter: http://twitter.com/CNYcentral/cnycentralweather
If you see severe weather, damaging winds, hail, or flooding, please let us know on Facebook or by e-mail at email@example.com or firstname.lastname@example.org.
Here is information from the National Weather Service:
INCLUDING THE CITIES OF...NEWARK...FAIR HAVEN...OSWEGO...
404 AM EST FRI FEB 21 2014
...FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT...
THE FLOOD WATCH CONTINUES FOR
* PORTIONS OF CENTRAL AND WESTERN NEW YORK...INCLUDING THE
FOLLOWING COUNTIES...IN CENTRAL NEW YORK...JEFFERSON...LEWIS...
NORTHERN CAYUGA AND OSWEGO. IN WESTERN NEW YORK...ONTARIO AND
* THROUGH LATE TONIGHT.
* RAIN AND SNOW MELT WILL RESULT IN A SIGNIFICANT RISK FOR ICE
* RUNOFF FROM RAIN AND MELTING SNOW ATOP THE FROZEN GROUND MAY
LEAD TO A HEIGHTENED POTENTIAL FOR FLOODING OF STREETS...LOW
LYING AREAS...AREAS OF POOR DRAINAGE...BASEMENTS AND SMALL
STREAMS AND CREEKS. SIGNIFICANT RISES ALONG MAJOR STEM RIVERS
A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS. YOU SHOULD MONITOR LATER FORECASTS AND BE
ALERT FOR POSSIBLE FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO
FLOODING SHOULD BE PREPARED TO TAKE ACTION SHOULD FLOODING
DEVELOP. STAY TUNED TO WEATHER RADIO OR OTHER RADIO AND TV
STATIONS FOR FURTHER DETAILS OR UPDATES.