Red Alert for heavy rain, wind and coastal flood concerns; Dangerous cold for Christmas


Red Alert: Heavy rain and wind are expected Thursday afternoon through early Saturday morning before arctic cold settles in for the holiday weekend. Some light snow is possible, as well.  




12 p.m. to 6 p.m. Thursday: Rain arrives, some snow north. Moderate to heavy rain for some.

6 p.m. Thursday to 6 a.m. Friday: Heavy bouts of rain, winds start to kick up after 8 p.m. Rain shuts off early Friday morning.   

6 a.m. to 12 p.m. Friday: This is the window for potential coastal issues. We have to watch the high tide cycles for some flooding. In the same timeframe, temperatures will crash after the squall line passes. Looking like a mid-morning trek across the area with a quick hit of additional rain/snow to finish. 

12 p.m. Friday to 6 a.m. Saturday: Precipitation clears the east end around 2 p.m.. Then, it’s all about the cold rushing in. Wind chills are potentially dangerous by Saturday morning. 

Watches & Warnings



Flood Watch: Thursday night through Friday night for inland areas that will see excessive rainfall combined with snowmelt.



Coastal Flood Warning: 5 a.m. Friday through 1 a.m. Saturday for potentially major local flooding, depending on wind. One to 2 feet expected, 3 feet locally, with above ground inundation possible. The best bet is in the back bays of Queens, south-facing shores and along the Long Island Sound.



Wind Advisory: 10 p.m. Thursday through 10 p.m. Friday for wind gusts up to 55 mph. We could have power problems, as well as knock-around scattered tree limbs. The strongest winds will be from New York City and areas east. Winds are also pretty stiff from the west — 20-30 mph through Saturday.



Snow: Some snow is likely Friday well north (Sullivan and Ulster counties early on, then the rain overwhelms). We are looking at another burst of snow as the squall line passes around mid-morning Friday, with a little accumulation possible. The bigger story here is the little burst of snow opens the door to the blast of Arctic air. 



Cold/Flash Freeze: Potentially dangerous cold rushes in Friday afternoon and bottoms out Saturday morning with temperatures in the single digits and teens across the area. Factor in the wind chill and it will feel sub-zero for some of the northern zones. Temperatures will be in the 50s early Friday, before crashing by midday.

Temperature timeline:

6 a.m. — 51 degrees9 a.m. — 46 degrees12 p.m. — 35 degrees5 p.m. — 28 degrees11 p.m. — 18 degrees6 a.m. Saturday — 15 degrees

Stick with the CBS2 Weather Team for the latest forecast and storm alerts.

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