Daily Archives: December 21, 2018

NYC Weekend Weather – Dec 21, 2018

The official start of winter hits at 5:23PM EST, though you’d be forgiven for thinking it were a spring day instead, with temperatures well above normal and a driving rainstorm to end the week. The storm tapers off rather quickly. Cold air wrapping around the exiting storm will drop temperatures right back into normal ranges for the rest of the weekend and going into the week of Christmas.

Rest of today – bouts of heavy rain, which have already induced flash flood and flood warnings, will continue through the early afternoon hours. There should be a lull in activity as the first cold front that’s been bringing this heavy rain exits east. More rain is possible with a secondary cold front set to pass through later this evening and tonight. Strong winds are set to continue throughout the day as two areas of low pressure responsible for this storm consolidate and continue to deepen (hence inducing a large pressure gradient). High temperatures likely have already occurred today in the low-60s, and temperatures will slowly drop into the upper-50s. Overnight lows should still be quite warm, in the upper-40s.

High Resolution Rapid Refresh model simulated radar for 3PM

Saturday – the first full day of winter will see a return to more seasonable temperatures with highs in the mid-40s under mostly cloudy skies. Clouds will be slowly dissipating as high pressure builds in behind the exiting storm. Overnight lows will get back into the mid-30s.

Weather Prediction Center forecast surface map for 7AM Saturday

Sunday – mostly sunny day with high temperatures in the low-40s and overnight lows into Monday in the mid-30s.

Monday – another mostly sunny day anticipated with a high in the low-40s.