The South Platte River has surged sharply over the last week as delayed mountain snowmelt finally flushes downstream.

At Roscoe, Nebraska, the South Platte flow rate jumped by 10 times to more than 2,000 cubic feet per second on Thursday, according to the U.S. Geological Survey. That’s up from a little more than 200 cfs a week earlier.

Despite that jump, officials aren’t sounding any alarms. The South Platte still has room to absorb runoff, and absent heavy rains, the snowmelt won’t cause flooding, according to the National Weather Service.

On Thursday, the South Platte at Roscoe was still 3 feet below minor flood stage.

“Overall, the chances for flooding, especially significant, widespread flooding, due to the snow remaining in the Platte system is quite low,” said Kevin Low, a hydrologist at the weather service.

A primary reason that flooding isn’t a threat is that the overall snowpack in the mountains peaked a little above normal, but not significantly so, according to the Natural Resources Conservation Service.

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That said, some areas along the Platte system are running high due to a combination of heavy rains and snowmelt, Low said. In those areas, additional rain could push the river into minor flood stage.

Flows out of Lake McConaughy have been reduced to accommodate the additional flows on the South Platte, said Tyler Thulin of the Central Nebraska Public Power and Irrigation District. Big Mac is on the North Platte River, which joins with the South Platte downstream at the city of North Platte.

On Thursday, flows out of Lake McConaughy were running at 1,944 cubic feet per second. A week earlier, those discharges were at 2,879 cfs.