Report by Paula Antolini, February 27, 2023, 12:17PM EDT
According to the National Weather Service, there is a WINTER STORM WARNING IN EFFECT FROM 6 PM EST THIS EVENING TO 6 PM TUESDAY.
–WHAT…Heavy snow expected. Some sleet is expected as well along coastal sections. Total snow and sleet accumulations of 5 to 8 inches.
–WHERE…Southern Connecticut.
–WHEN…From 6 PM this evening to 6 PM EST Tuesday.
–IMPACTS…Travel could be very difficult. The hazardous conditions could impact the morning or evening commute.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency.
Check local Department of Transportation information services for the latest road conditions.
*****
Snow – Interior portions of NE NJ, Lower Hudson Valley and Southern CT
5 to 8” snow possible, highest north and west of I-287/87. This will result in hazardous
travel and possible snow covered roads for the Tuesday morning commute.
Snowfall Rates: 1 inch/hr possible this evening through early Tue morning
Snowfall Character: Wet and heavy
Air Temperatures: Around 30 degrees, but lower 30s closer to coast.
Snow to Mix – NYC/NJ Metro, Long Island and Southern Westchester:
2 to 6” of wet snow possible, highest amounts across northern areas. The snow is
expected to mix with sleet after midnight, then to rain or a rain/sleet mix by early Tuesday morning.
Snowfall Rates: 1 inch/hr possible during the evening
Snowfall Character: Wet and slushy
Air Temperatures: Lower to mid 30s Mon Eve, rising into mid and upper 30s.
Coastal Flooding – Widespread minor coastal flooding expected for the early Tue am high
tide cycle for vulnerable south shore back bay locations of Nassau county. Low chance of
localized flooding for vulnerable W LI Sound, Jamaica Bay, and NY/NJ Harbor coastal locales.
*****
OVERVIEW
We are expecting the first widespread plowable snowfall of the season.
Winter storm warnings and winter weather advisories are now in effect for the entire area.
NWS ALERTS
Winter Storm Warnings issued for all of southern CT, The Lower Hudson Valley Orange except southern Westchester and portions of interior NE NJ (Passaic and Western Bergen).
Winter Weather Advisory for NYC, Long Island, most of NE NJ, and Southern Westchester.
Coastal Flood Advisory remains in affect for southern Nassau County, NY.
FORECAST CHALLENGES
Snowfall amounts for the NYC/NJ metro and Long Island are the most uncertain. It will be dependent on intensity of snowfall at the onset, whether warm air comes in aloft from the southwest, and low-level warming due to east winds. Southern portions of LI and NYC will changeover first.
Areas to the north and west of I-287 in NY/NJ and north of I-95 in S CT should be mainly snow.
*****
Detailed Forecast
This Afternoon
Increasing clouds, with a temperature falling to around 35 by 5pm. Calm wind becoming southeast around 6 mph.
Tonight
Snow. Low around 29. Wind chill values between 20 and 25. East wind 7 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Tuesday
Snow, mainly before 4pm. High near 36. Wind chill values between 20 and 30. East wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 100%. New snow accumulation of around an inch possible.
Tuesday Night
A 30 percent chance of snow before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 24. Northwest wind 3 to 5 mph.
Wednesday
Mostly sunny, with a high near 44. Light and variable wind becoming south 5 to 9 mph in the morning.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 35.
Thursday
A 50 percent chance of rain. Cloudy, then gradually becoming mostly sunny, with a high near 54.
Thursday Night
A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 28.
Friday
A chance of rain and snow before 1pm, then rain likely between 1pm and 4pm, then rain and snow likely after 4pm. Cloudy, with a high near 38. Chance of precipitation is 70%.
Friday Night
Rain and snow likely before 1am, then a chance of snow. Mostly cloudy, with a low around 23. Blustery. Chance of precipitation is 60%.
Saturday
Mostly sunny, with a high near 37.
Saturday Night
Partly cloudy, with a low around 21.
Sunday
Mostly sunny, with a high near 40.