Photo: Nebraska National Guard

Melting snow and heavy rain from the "Bomb Cyclone" in the Midwest has caused historic flooding from the Platte and Missouri rivers.

Why it matters: Nebraska Gov. Pete Ricketts said it's the worst flooding the state has experienced in 50 years, with at least two flood-related fatalities this week. Dams have failed, levees breached and other infrastructure stripped away as raging floodwaters and chunks of ice move downstream.

The details: The floods have resulted from a series of events including an extremely cold winter that allowed a thick snowpack to pile up. Then the intense storm brought a sudden pulse of heavy rainfall and mild temperatures. The rain fell on impermeable, frozen ground, causing huge amounts of runoff into area rivers and streams that were choked with thick blocks of ice.

Before/after imagery of flooding near Offutt Air Force Base, Nebraska. Image: NASA
Snowmelt seen from satellite on March 11 (left) and March 16 (right), during the period of the "Bomb Cyclone." Images: ESA Sentinel 2 via Simon Gascoin.
Photo: Nebraska National Guard.
Photo: Nebraska National Guard.
Photo: Nebraska National Guard
Photo: Outfutt Air Force Base
Photo: Offutt Air Force Base
Photo: Offutt Air Force Base

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Updated 1 min ago - World

Hong Kong media tycoon Jimmy Lai arrested under national security law

Media tycoon Jimmy Lai at the Next Digital offices in Hong Kong in June. Photo: Anthony Wallace/AFP via Getty Images

Hong Kong pro-democracy activist Jimmy Lai has been arrested for "collusion with foreign powers" and the offices of his newspaper raided, said Mark Simon, an executive at the tycoon's media firm Next Digital on Monday.

Why it matters: He was arrested under the new national security law that gives Beijing more powers over the former British colony. Lai is the most prominent person arrested under the law — which prompted the U.S. to sanction Chinese officials, including Hong Kong leader Carrie Lam, over Beijing's efforts to strip the territory of its autonomy.

Updated 11 mins ago - Politics & Policy

Coronavirus dashboard

Illustration: Sarah Grillo/Axios

  1. Global: Total confirmed cases as of 1:30 a.m. ET: 19,861,683 — Total deaths: 731,326 — Total recoveries — 12,115,825Map.
  2. U.S.: Total confirmed cases as of 1:30 a.m. ET: 5,044,864 — Total deaths: 162,938 — Total recoveries: 1,656,864 — Total tests: 61,792,571Map.
  3. Politics: Pelosi says states don't have the funds to comply with Trump's executive order on unemployment — Mnuchin says Trump executive orders were cleared by Justice Department.
  4. States: New York reports lowest rate of positive coronavirus test results since pandemic began
  5. Public health: Ex-FDA head: U.S. will "definitely" see 200,000 to 300,000 virus deaths by end of 2020. 
  6. Schools: 97,000 children test positive for coronavirus in two weeks — Nine test positive at Georgia school where photo showing packed hallway went viral .

97,000 children test positive for coronavirus in two weeks

A boy has his temperature checked as he receives a free COVID-19 test in South Los Angeles in July. Photo: Mario Tama/Getty Images

At least 97,000 children tested positive for COVID-19 in the final two weeks of July and there's been an estimated 338,000 cases involving kids in the U.S. since the pandemic began, a new report finds.

Why it matters: The findings in the report by the American Academy of Pediatrics and the Children’s Hospital Association comes as schools and day cares look to reopen in the U.S., with New York Gov. Andrew Cuomo (D) announcing Friday that school districts in the state can reopen in the fall amid lower coronavirus transmission rates.