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PM Zones: Warmth on Hiatus

Good afternoon! We continue to have chilly weather with a mix of sun and clouds, thanks to a large blocking pattern forcing an upper-level low to linger over the area. The upper-level low has a very chilly airmass underneath it, particularly from 850mb and above. In fact, this chilly airmass led to snow in Norfolk, CT this morning! Generally, highs only held in the upper 50s across the area, and it actually could’ve been worse had it not been for downsloping NW flow and deep mixing in the atmosphere. But the NW flow and mixing makes the surface warmer, which increases the difference between the surface temperatures and the very chilly airmass aloft, which increases atmospheric instability, and leads to an increase in clouds — thus the frequent periods of cloud-cover today. These clouds also contained a few isolated showers, but the downsloping component kept these a bit more infrequent than days past.

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