There were 1,234 Union area residents who were without power Monday by 6 a.m. as temperatures were below 0 degrees.

According to Ameren Missouri representative Kent Martin, the outages were caused by a weather-related issue at a substation east of Union.

Power was restored to all but a few residents in the 63084 ZIP code by Tuesday morning.

Martin explained that the power had to be switched on in clusters, and not all at once.

“It is taking longer than normal,” he told The Missourian Monday afternoon. “Because of the bitter cold, we have to restore power in segments.”

Martin added that it would have overloaded the feeder line that enters the substation.

There are a total of 8,603 Ameren customers within the 63084 ZIP code. In the entire Ameren Missouri coverage area, there were about 2,100 people without power Monday morning, including over 650 outages in Jefferson County.

There were even more outages reported Tuesday in the Pacific and Gray Summit areas. More than 3,200 Ameren Missouri customers were without power at 10 a.m. Tuesday.

Residents without power have been instructed to call 911 if they are in danger due to the subzero temperatures.

On Monday, those in the Union city limits were instructed to call the police department for weather-related emergencies.

There were about 10-11 inches of snow that fell in the Union area Sunday.

The snow was followed by highs of 0 degrees and lows about minus 10 degrees. The wind-chill factor for many areas was minus 25 degrees.