The MBTA and its Commuter Rail operator left the power on throughout the overnight hours, preparing for Wednesday’s frigid forecast. With highs in the mid 20’s and subzero lows expected, the commuter trains were “hooked up to compressors and electric systems” to ensure service wouldn’t be impacted, says a Keolis spokesperson.

“Keolis and the MBTA do this anytime we see temperatues like those [Wednesday] morning,” Mac Daniel, a spokesperson for the T’s Commuter Rail operating company, tells BostInno. “If this is not done, air compression systems on the trains can freeze up.”

Thursday morning is expected to be worse, with record-breaking cold temperatures possible. Overnight Wednesday into Thursday morning, strong gusting winds could produce wind chill readings as low as -24 degrees. A Wind Chill Advisory will be in effect for Suffolk County, beginning at 5 p.m. and lasting through 10 a.m. Thursday morning.

Daniel says, Keolis and the T “will be [hooking trains up] again [Wednesday night] as temperatures drop further,” adding that he believes the heating system that warms up individual passenger cars was also left on Wednesday night – and they’ll be kept on Thursday night, too.

Photo via @MBTA_CR/PBS

You can read more stories on Boston startups, technology and innovation at https://www.bizjournals.com/boston/inno