Three weeks from perihelion, ISON still puzzling

With perihelion fast approaching, Comet ISON is brightening steadily as it makes its first and only trip towards the inner solar system. The comet, once dubbed “Comet of the Century” by amateur astronomers after it was discovered at an alarmingly bright magnitude over a year ago, has fallen short of expectations since then. But studies by various scientists have only left confusing results and differing opinions. Some say the comet is on its way to disintegration, others are expecting an outburst of brightness within the next two weeks. ISON, however, will do what it wants — as it continues its trek towards the sun, and then outward into space once again.

Comet ISON, imaged November 3rd 2013 by Rolando Ligustri.

Comet ISON, imaged November 3rd 2013 by Rolando Ligustri.

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Cold start, slowly warming this week

The growing season ended early Monday morning throughout much of the interior, down to the immediate suburbs of Western Union and Essex counties. The winds kept radiational cooling from performing too well, however, and much of the 5 Boros of NYC remained above freezing — so the growing season will technically continue there until the next freeze. Although it may seem very brisk today (temperatures will struggle into the 50’s Monday afternoon), the cold air will be rather brief. Temperatures are expected to slowly warm this week, with highs reaching into the 60’s by later this week ahead of a cold front. The roller coaster of temperatures has been a trend of late, with a similar event occurring last week ahead of a front and storm system.

HRRR model showing dew points in the teens throughout the area on Monday afternoon.

HRRR model showing dew points in the teens throughout the area on Monday afternoon. Courtesy Weatherbell.

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