The blizzard that pounded southwestern Connecticut with driving snow and howling winds from Sunday overnight into Monday has piled up accumulations of a foot or much more, made drift-strangled roads impassable, and shut down all Metro-North Railroad service.

A blizzard warning issued by the National Weather Service remains in effect until about noon Monday, as snow tails off, but strong winds will continue to cause near-whiteout conditions at times.

The day's high temperature is expected to remain below freezing, cresting at about 27 degrees as clearing takes place by afternoon.

Winds will be strong, with blasts from the north between 31 and 38 mph, with gusts as high as 49 mph. Monday night should be mostly clear, with a low around 18 degrees. The wind will calm to between 16 and 23 mph.

Tuesday should be mostly sunny, with a high near 35 degrees. Conditions should be breezy, with a northwest wind between 14 and 20 mph. Tuesday night will be partly cloudy, with a low around 24, according to the NWS.

A warming trend takes hold Wednesday and Thursday, with high temperatures both days in the high-30s under sunny skies.