PM Update: Freeze Warning in effect for many areas tonight

On the heels of a strong cold front which moved through the area yesterday, cold air both aloft and at the surface has settled into the region today. This air is unseasonably cold, in fact, with mid level temperatures several degrees below normal and surface temperatures only topping out in the lower 50’s this afternoon in many locations throughout the area. The cold air aloft even aided in some snow and graupel showers throughout the area during the afternoon today.

Nevertheless, tonight will be a cold one. Forecast models are in good agreement on mid level temperatures falling to even colder levels tonight than they did today. At the 850mb level, for example, models suggest temperatures will fall to near -10 C later tonight. That is a value much more common in the middle of winter, and not often seen in late April.

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Chile’s Calbuco erupts for first time in 40+ years

Yes, we are a New York Metro Area forecasting website. But there are times when it becomes prudent to venture out a bit — especially when a worldwide event occurs such as this one.

Chile’s “Calbuco” volcano erupted yesterday, for the first time in more than 40 years. The first eruption, Wednesday afternoon, spewed massive amounts of ash into the sky a few hours prior to sunset. A second eruption overnight was stronger than the first — with massive amounts of ash and lava continuing to erupt.

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High latitude blocking puts Spring on hold

It’s almost too fitting. For much of the winter, meteorologists and hobbyists alike spend countless hours attempting to forecast and predict the likelihood of high latitude blocking development. This year, stratospheric warming events were expected to kick off changes that would eventually lead to the development of said high latitude blocking, and change our pattern to a cold and snowy one. While the pattern turned cold and snowy for sure, the high latitude blocking never came to fruition. In fact, the NAO stayed positive for much of the winters duration.

Well, it’s finally here. Just in time for Spring.

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PM Update: Lyrid meteor shower peaks tonight

Showers and thunderstorms, some currently warned as severe with strong winds, are progressing through the area this afternoon. Please see our currently active thread for the latest information on those weather hazards. 

The annual Lyrid meteor shower, which often features some notably bright meteors in the night sky, will peak tonight. Although the meteor shower has been trending toward peak for the past few days, with some sightings reported in our local area suburbs, the shower reaches its technical maxima tonight. The meteor shower is active from April 15th through April 25th annually, with peak days varying. The visibility of meteors also varies year to year based on sky and moon conditions.

This year, ideal viewing conditions are anticipated with a waxing crescent moon setting during the early evening hours of the peak days. This will leave especially dark conditions for meteor viewing. While last years Lyrid meteor shower was generally unimpressive, the variance from year to year leaves meteor-watchers very hopeful for this years result.

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