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Arctic blast brings extreme cold

Australian exchange students Tamara Gleeson, left, and Hayley Jarvis braved the wind as they crossed the Massachusetts Avenue Bridge in Cambridge Wednesday. Wendy Maeda/Globe Staff/Globe Staff

A wind chill advisory is in effect for much of the state until 11 a.m. Thursday because of temperatures that are expected to be dangerously cold.

Temperatures around 5:45 a.m. Thursday ranged from 0 degrees in Boston to minus-4 in Dedham, minus-5 in Worcester and Nashua, and minus-6 in Acton.

Boston Public Schools and other area school systems closed Thursday.

Alan Dunham, a weather service meteorologist, said the cold would be an issue Thursday morning when people are preparing for work or getting children ready for school. State transportation officials warned that people who use subways or trains to get to work could face delays.


“People should make sure they dress in layers and make sure they can keep their head and ears covered, wear mittens,’’ Dunham said. “They should also bring pets in from outside.’’ The experts also had another piece of simple advice: Stay inside.

Temperatures will recover slightly Friday, reaching the 30s, but there is a 50 percent chance of snow showers. Dunham said there would be little accumulation and that no major storms are forecast in the near future.

The weather service has also issued a gale warning for Nantucket Sound, Vineyard Sound, and Buzzards Bay that will remain in effect until 10 a.m. Thursday.

Aneri Pattani can be reached at aneri.pattani@globe.com . Follow her on Twitter @apattani95.

John R. Ellement can be reached at ellement@globe.com. Follow him on Twitter @JREbosglobe.