Record-setting snowstorms along with predictions for a colder March have increased the flood risk across the Red River Valley, the National Weather Service said last week.
"When we were looking at this in mid-to-late January we were near normal, and we were looking at the prospects for a warmer, drier March coming up," said Gregory Gust, warning coordination meteorologist with the weather service.
"Then late January into February just went ballistically cold and snowy on us."
Like the Twin Cities, Grand Forks, N.D., had its snowiest February on record, and Fargo was expected to meet or exceed its record for the month this week.
The climate prediction center, meanwhile, is now saying that March will likely be colder than normal.
"That means our snowmelt thaw could push later into March and finish up into April — so our risk of getting rain on top of snow increases," Gust said.
A couple of warm days could wreak havoc by releasing water faster than the ground can absorb it.
The water content of the snow that has fallen since Oct. 1 is running up to 15 percent above normal across a large part of the Red River basin, in northwest Minnesota and northeast North Dakota.