NYC Weekend Weather Update – Mar 15, 2014

Expecting a pleasant, mild, and mostly sunny day Saturday, temps in the mid-upper 50s – if you get a chance, definitely go out and enjoy the nice weather before a storm system enters the NYC region Sunday night into Monday night.

The mild temps today are as a result of southwest winds ahead of an approaching cold front. When the cold front pushes through, winds will shift to the west, ushering gusts up to 40mph and a significantly colder air mass.

Sunday – should be another mostly sunny day, though much cooler than today with highs temps only in the mid 30s. Sunday night, increasing chance of snow begins from south to north across the area. Overnight lows into Monday only in the mid 20s.

Monday – high temps will be right about freezing near the coast, and in the mid 20s in the interior. The setup for this storm system is very similar to the last snow storm (or non-storm) on Mar 3rd. Forecast models are suggesting that the bulk of moisture and favorable dynamics for heavy snow will remain offshore. Should this scenario hold, then we’d only expect to see a dusting to maybe an inch of snow in the city and Long Island, with negligible totals further north.

During the last storm, forecasters had difficulty resolving the uncertainty about exactly where the best conditions for heavier snow would exist. Again, this time, the line is quite close. A slight adjustment northward of the current forecast track for the low pressure system that is developing over the Gulf now could result in higher snowfall totals. See below how close the areas of darker blue representing moderate precipitation are to our area!

Screen shot 2014-03-15 at 11.29.13 AMTuesday – a dry and sunny day, but with temps still suppressed in the mid 30s in the city as a high pressure system temporarily sits over the NYC area.

Wednesday – the next low pressure system to impact the area will be moving in from the Great Lakes, with a low pressure center sliding to our north and a trailing cold front. Temps will climb into the low-mid 40s ahead of the cold front, so precipitation would be mixed to mostly rain.

Screen shot 2014-03-15 at 11.31.49 AM

The end of the week looks to be dry with highs near normal (around 47-49 deg at this time of the year).

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