ST. JOSEPH (REUTERS) - Record floodwaters that submerged vast stretches of Nebraska and Iowa farmland along America's longest river reached a new crest on Friday (March 22) at the waterfront city of St. Joseph, Missouri, forcing chaotic evacuations of thousands from low-lying areas.
With emergency sirens blaring as the Missouri River rose to the top of the three-storey-high levee wall in St. Joseph, about 88km north of Kansas City, Missouri, sheriff's deputies rushed door-to-door urging residents to flee to higher ground.
About 1,500 residents and 6,000 employees of neighbouring businesses were ushered out of the southern end of town, a city official said. Most of the evacuated dwellings were trailer homes interspersed among factories, warehouses and stockyards along a stretch of the riverfront known as "the Bottoms".
Many residents appeared stunned as they scurried out of their homes with armloads of hurriedly gathered belongings to throw into their vehicles before joining a steady stream of cars, pickup trucks, SUVs and tractor-trailers.
The abrupt evacuation, coming as the river rose just over 4.57m above flood stage - slightly exceeding the previous record of 9.78m - appeared to take authorities and residents by surprise.
"We don't have anywhere to go. This is overwhelming," said Ms Linda Roberts, 70, as she and her husband, John, 66, packed their SUV, their dog sitting uneasily in a pet carrier.
With police doing their best to direct gridlocked traffic and with helicopters whirring overhead, dust billowed up from packed roadways for hours, mixed with the odors of livestock and chemicals, as the mass exodus proceeded in slow motion.
The St. Jo Frontier Casino, about 8km to the north, was already surrounded by water, and roadways along the river were submerged, officials said.
The flood crest was expected to reach the Kansas towns of Atchison and Leavenworth, about 56km farther downstream, on Saturday (March 23), and Kansas City as early as Sunday (March 24), officials said.
FLOOD RECORDS BROKEN
Missouri River flooding was triggered by last week's "bomb cyclone" storm, which killed at least four people, drowned livestock and closed dozens of roads across a large swath of Nebraska and Iowa. Property and financial losses for the two Midwestern states were projected to surpass US$3 billion (S$4 billion).
Torrential showers over hundreds of square kilometres of melting snowpack produced record volumes of runoff that poured into the Missouri just above the Gavins Point Dam where the river divides Nebraska from South Dakota, nearly 640km upstream from Kansas City. The dam is operated by the US Army Corps of Engineers.
Water entering the reservoir from that storm marked the greatest volume measured there in 120 years of recordkeeping, said Mr John Remus, chief water manager for the Army Corps'Missouri River basin.
The downstream flow, breaking flood stage records at several locations along the river, has placed enormous strain on the region's system of flood-control levees. Nearly 50 levee breaches have been confirmed in the Army Corp's Omaha district alone, encompassing the hardest hit parts of Nebraska, Iowa and Missouri, officials told a news briefing.
Nebraska farmers were digging out of flooded fields and coping with cut-off highways on Friday.
"The biggest thing right now is the transportation. We're right between Loup and Cedar River, and transportation is nearly impossible," said Mr Ryan Sonderup, 36, of Fullerton, Nebraska, who has been farming for 18 years.
Officials downstream were carefully watching flood gauges in Atchison, Kansas, a community of about 10,000 residents where a handful of riverfront properties and roads were under threat of flooding.
Missouri governor Mike Parson declared an emergency on Wednesday (March 20) as high water forced evacuations of several small farm communities in the northwestern corner of his state.
President Donald Trump on Thursday (March 21) approved a disaster declaration for Nebraska, making federal funding available in nine counties ravaged by last week's floods. Iowa governor Kim Reynolds on Friday requested a presidential disaster declaration for 57 flood-stricken counties in her state.
The threat of extensive flooding lingers over the wider Midwest and could grow dire in coming weeks with additional rainfall and melting snow runoff, putting more than 200 million people at risk, the National Oceanic and Atmospheric Administration (NOAA) said on Thursday.