After a long period of relatively calm weather for early and mid-December, a procession of weak to moderate storm systems originating in the Pacific will bring more typical wintry conditions to the Berkshires beginning on Sunday.
A mix of snow, sleet and freezing rain -- often the most challenging scenario for motorists -- is expected to break out Sunday morning, continuing past nightfall. The National Weather Service in Albany, N.Y., is likely to issue winter weather advisories for the Berkshires and surrounding areas to the west and north once the track of the weak system becomes more established.
The threat of moderate to heavy snow or sleet for next week has been reduced but not eliminated, according to meteorologist Bryan Montgomery at the government forecast office. With temperatures expected to climb through the 30s, the icy mix is likely to become mainly rain on Monday night, he predicted.
By Tuesday night, with a cool-down under way, a brief outbreak of snow showers is possible before a repeat performance of a mix changing to rain on Thursday night into Friday.
The odds of a white Christmas remain 50-50 at best with the long-range outlook for Dec. 20-28 suggesting a wet but mild period surrounding the holiday.
Follow Clarence Fanto’s Weatherwise in the Berkshires blog at www.berkshire