January’s cold spell has made this month the coldest since 2011, but the much-needed January thaw is beginning to ramp up. A ...

SPEARFISH, S.D. (KOTA) - On January 22, 1943, Spearfish experienced the fastest temperature change ever recorded, driven by ...

But that high moved away quickly, replaced by southwest winds. Since these so-called Chinook winds blowing down the slopes of the northern Rockies warm as the descend, temperatures along Montana's ...

The effects of the Chinook winds can be even more dramatic. In fact, the biggest recorded temperature jump occurred in Spearfish, South Dakota, on Jan. 22, 1943, when the temperature soared 49 ...

but the much-needed January thaw is beginning to ramp up. A key factor driving this warm-up is the Chinook wind, which is common this time of year.