Weather

Weatherwatch: how mountain winds bring warm winter weather

A prolonged Föhn effect can result in abnormally high temperatures

The Föhn effect is characterised by dry and warm winds on the downwind side of high ground. The main warming mechanism originates from the fact that the cooling rate of moisture-laden air as it is forced to ascend over a mountain is lower than the warming rate of drier air as it descends the downslope side. Once the moisture is condensed out of the air into clouds over the mountain itself, it warms up descending the lee side – often becoming notably higher than its original temperature.

Snow and rain mix making for slick and messy roads

The second of two storms to move into Maine this week brought snow and freezing rain early Wednesday morning, creating slick roads and causing crashes.

A northbound vehicle on the Maine Turnpike crashed about 8:30 a.m. at mile marker 27, near Exit 25 in Kennebunk and Exit 27 in Biddeford, according to the Maine Turnpike Authority. Another crash happened at 8:46 a.m. in the southbound lanes in Portland between Exit 46 in Portland and Exit 44 in Scarborough, according to the authority.

Both crashes were cleared before 9:30 a.m.

Lewiston superintendent uses music video to call off school

Lewiston Public Schools Superintendent Bill Webster announced a snow day Tuesday through a catchy little jingle posted on YouTube.

Webster switches between piano, guitar and accordion in the one-man routine and through about a minute of singing, playfully strings along any students who may be watching to learn whether classes are canceled.

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