Saskatchewan continues to seesaw between mild and brutally cold temperatures, with the mercury plummeting downward once again.
On Monday, Environment Canada had issued wind chill warnings for the entire southeast quarter of the province.
Regina was included, but Saskatoon was not.
At 6 a.m. CST, the cold spot in the province was Uranium City, where it was -43. The warm spot, as is often the case, is Maple Creek, which was at -16 at the same time.
School bus service was affected in a number of communities while schools remained open.
Morning temperatures were well into the -30s in many communities, but with the wind, it will feel like -40 to -50 C well into Tuesday morning.
It's all thanks to an Arctic air mass, combined with winds over 15 kilometres an hour in the southeast.
People are being warned that frostbite on exposed skin may occur in less than 10 minutes.