is in effect for Oswego, Jefferson, Lewis, Ontario, Wayne and northern Cayuga counties through 2am Saturday.
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 with these particular situations
The combination of milder temperatures developing through Friday coupled with rain moving through our area will cause major melting all across our area. The rain and snowmelt could be enough to cause on ice on rivers, streams, and creeks to lift and break up. When this occurs, these ice chunks could jam up downstream 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.
A wind advisory is in effect for Jefferson & Ontario counties from midnight Thursday night until 9am Friday.
A wind advisory means that sustained winds of 30 mph and/or wind gusts of 45-50 mph are expected. This could cause some minor damage to trees, power lines and very weak structures.
If your area has a wind advisory, here is what you should do
-- Secure loose objects outside.
-- Keep a firm grip on the wheel of your vehicle, especially high profile vehicles.
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...
317 PM EST THU FEB 20 2014
...FLOOD WATCH REMAINS IN EFFECT FROM 1 AM EST FRIDAY THROUGH
LATE FRIDAY NIGHT...
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
* FROM 1 AM EST FRIDAY THROUGH LATE FRIDAY NIGHT.
* RAIN ALONG WITH SIGNIFICANT SNOW MELT FROM NOTABLY WARMER
CONDITIONS WILL BRING THE RISK FOR ICE JAM FLOODING. THERE
WILL BE A GREATER POTENTIAL FOR BREAK UP AND DOWNSTREAM
MOVEMENT OF THICK ICE ON CREEKS AND STREAMS THAT WOULD
INCREASE THE RISK FOR ICE JAMS TO DEVELOP AND INCREASE THE
* 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
INCLUDING THE CITY OF...WATERTOWN
400 PM EST THU FEB 20 2014
...WIND ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
* LOCATIONS...JEFFERSON COUNTY.
* TIMING...MIDNIGHT TONIGHT THROUGH LATE FRIDAY MORNING.
* WINDS...SOUTHEAST 20 TO 30 MPH WITH GUSTS UP TO 50 MPH.
* IMPACTS...THESE WINDS MAY RESULT IN DIFFICULT DRIVING CONDITIONS
FOR HIGH PROFILE VEHICLES. SOME SMALL TREE LIMBS MAY BE
BROKEN...AND UNSECURED OUTDOOR OBJECTS...SUCH AS TRASH
CANS...MAY BE BLOWN ONTO STREETS.