Tonight Tropical Storm Helene forming in the Caribbean and potentially taking aim at the U.S.

Gulf Coast as a major hurricane. A hurricane warning and watch along Florida's

Western coastline, a state of emergency across nearly the

entire state up to 15 feet of storm surge expected, mandatory evacuations in

effect and we're tracking it all. Also this evening, President Biden's final address of the United Nations,

its warning to the world as wars rage in the Middle East and Eastern Europe,

Israel and Hezbollah exchanging new strikes as thousands flee southern Lebanon after the

deadliest day there in almost two decades.

Nearly a year after the Hamas terror attack on Israel, the families of American hostages speaking out,

one freed hostage fearing for her husband still in captivity.

I was there in those same conditions and I thought that I'm going to die all the time.

Do they feel forgotten as the war shifts to Lebanon?

NFL legend Brett Far revealing his battle with Parkinson's while on the hot seat at a Capitol

Hill hearing on welfare fraud.

The CEO of the company behind Mozambic and Wagovi testifying.

Lawmakers demanding to know why are popular weight loss drugs so expensive when they cost

less abroad.

And the W-N-B-A playoffs tipping off as the popularity of women's hoops surges on courts across the country.

This is NBC Nightly News with Lester Holt.

Good evening everyone and welcome.

We may be looking at a major hurricane

striking the US mainland within the next 48 hours.

...