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You are here: Home / Fires/Accidents/Disasters / Potential rainstorm and Gavins Point releases could make Missouri River rise

Potential rainstorm and Gavins Point releases could make Missouri River rise

April 1, 2019 By Radio Iowa Contributor

Gavins Point Dam

As floodwaters in southwest Iowa slowly recede, forecasters fear large storms could develop soon that would make a bad situation worse.

Kevin Low, a meteorologist with the National Weather Service’s Missouri Basin Forecast Center, says they’re watching the development of a potentially large storm system that could arrive late next week, roughly April 10th through the 13th.  “Of course, the impacts, amounts, timing for this second week of April event is undeterminable at this moment,” Low says. “It’s just very preliminary. We wanted to give you a heads up the second week of April looks to be fairly active across the Missouri basin.”

Record flooding was already recorded on the Missouri River and many of its tributaries in the past few weeks. With the heavy snowmelt, the U.S. Army Corps of Engineers is increasing releases this week from Gavins Point Dam into the Missouri River. John Remus, chief of the Corps’ Water Management Office in Omaha, says two of the big southern-most water storage reservoirs are already getting full.

“I realize these higher system releases will add water to the lower river,” Remus says, “However, maintaining high pools at Fort Randall and Oahe increases the risk of even higher — possibly flood-level — releases if we were to get a large rainfall event over the central Great Plains.”

Remus says flows from Gavins Point Dam will be increasing all week in hopes of avoiding more damaging flows later on. “We want to remind everyone that we are at the beginning of the flood season,” Remus says, “and having very high pools in the lower reservoirs at this time of year severely limits our ability to respond to rainfall events that may occur anywhere in the basin.” Remus says the mountain snow pack is still increasing and normally melts and runs off in May and June.

Flood damage this spring in Iowa and Nebraska combined is nearly $3 billion.

(By Jerry Oster, WNAX, Yankton)

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Filed Under: Fires/Accidents/Disasters, News, Weather

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