Minneapolis-St. Paul International Airport after a blizzard struck overnight in Bloomington, Minnesota. Photo:Stephen Maturen/Getty Images

Two powerful storm systems are causing chaos as they dump snow and heavy rain across the United States, threatening the holiday plans of millions of Americans on the eve of Thanksgiving. And the "bomb cyclone" that's been pummeling the West Coast could bring a third storm to the east, the Washington Post reports.

What's happening: The wild weather "choked transportation across the center of the nation," the New York Times reports. Over 100 flights were canceled Wednesday and hundreds more were delayed, per Flightaware.

  • The "bomb cyclone" that "crashed ashore" in the Northwest Tuesday night with 100 mph winds was unleashing heavy snow over the Sierra Nevada while hitting Southern California with "heavy rain, coastal flooding and even isolated thunderstorms," per the Washington Post, which notes it's expected to bring rain and "heavy mountain snows into Utah, Nevada and parts of Colorado."
  • In the Plains and Upper Midwest, a "kitchen sink" storm was attacking communities, WashPost notes.
  • Tornadoes were reported in Mississippi and Louisiana, while there were power outages in Missouri and Illinois and parts of the Midwest were "blanketed by heavy snow," the New York Times reports.
  • Nebraska, meanwhile, endured "thundersnow" and "thundersleet," per WashPost notes.

By the numbers: AAA expects a near record of over 55 million people to travel for Thanksgiving.

Go deeper: Powerful twin storms set to cause Thanksgiving travel "nightmare"

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Illustration: Aïda Amer/Axios

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Trump says he intends to give RNC speech on White House lawn

President Trump speaking to reporters on South Lawn in July. Photo: Jabin Botsford/The Washington Post via Getty Images

President Trump told the New York Post on Thursday that he plans to deliver his Republican National Convention speech from the White House lawn, despite bipartisan criticism of the optics and legality of the location.

Why it matters: Previous presidents avoided blurring staged campaign-style events — like party conventions — with official business of governing on the White House premises, per Politico.

Fauci's guidance on pre-vaccine coronavirus treatments

Illustration: Aïda Amer/Axios

Antibody drugs and various medicine cocktails against the coronavirus are progressing and may provide some relief before vaccines.

The big picture: Everyone wants to know how and when they can return to "normal" life, as vaccines are not expected to be ready for most Americans for at least a year. Two therapies are known to be helpful, and more could be announced by late September, NIAID Director Anthony Fauci tells Axios.