The new year's winter weather is threatening icy shock waves for the eastern two-thirds of the country.
The first cold blast set records Thursday in Minnesota and is expected to strike the Eastern U.S. on Friday with possibly single-digit temperatures in places. Boston's reading could fall to zero.
A second blast is expected to move from the Great Plains and Midwest on Sunday and Monday and into the East on Tuesday. The National Weather Service called for below-normal temperatures, high winds or heavy snow for most places east of a line from central Montana to Houston. Some meteorologists predicted subzero wind chills, possibly as far south as Atlanta.
The NWS forecast for Enid shows temperatures starting to bottom out Saturday night, into Sunday, with a low predicted to fall to 16, with a 20 percent chance of snow also in the forecast, after a high near 42 on Saturday, according to the NWS website.
The high Sunday will only climb into the upper-20s, according to NWS meteorology reports, with a low Sunday night of 7. Monday will be mostly sunny with a high near 19 and a low around 11. Temperatures will reach the low-30s Tuesday and upper-30s Wednesday, according to current long-range forecasts.
Monday Mostly sunny, with a high near 19.
NWS said both cold shots should be fleeting with subsequent temperatures warming up quickly.