Finally: Spring like weather will arrive next week

It’s been a long winter. Although we have generally avoided prolonged periods of cold and snow (86% of New York City’s seasonal snowfall to date has come from one storm), it has been a while since we have been able to enjoy a period of warm temperatures that didn’t feature rain, wind, or thunderstorms. Forecast models agree that will change next week.

A collapse of the west-coast ridging pattern will allow for a large ridge to build into the Eastern United States, beginning late this weekend and continuing into the early and middle part of next week. Surface temperatures will respond, likely by Tuesday, with highs exceeding the 50’s and approaching the 60’s. By the middle of the week, high temperatures could approach 70 in many locations.

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Colder Weather Returns…Light Snow Likely Friday

After a nice period of warm weather, a cold front came through this morning, allowing a Canadian airmass to build into the region.  Strong cold-air advection will cause temperatures drop through the 40s and into the 30s later this afternoon and evening. Windy conditions will continue with northwest winds 20mph to 30mph gusting to possibly near 45mph at times this afternoon. Temperatures will drop into the lower to middle 20s tonight, with northwest winds diminishing to 10mph to 20mph. Tomorrow will be mostly sunny with high pressure remaining in control. High temperatures will be in the middle to upper 30s — well below average for this time of year.

Model guidance is in agreement that a low developing over Southeast US will track well south and east of the region on Friday. This is because while the polar vortex will be lifting out Southeast Canada, the flow is too progressive to allow the upper-level trough to amplify enough for the storm to track closer to our region. Another disturbance rolling over the West Coast ridge, will keep this storm moving out into the Western Atlantic.

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