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Live from ABC News headquarters in New York City,

this is Good Morning America.

But we do begin here with the dangerous weather

hitting the middle of the country. The start of a potential five-day stretch. ABC News meteorologist

Leslie Lopez is here with what we can expect. Leslie, good morning. Very good morning. Okay,

I wanted to show you this. This was even just yesterday. We're out towards Kansas, Harper, Kansas,

and you saw some lightning strikes. More severe weather.

We're tracking that for today. This is on your Saturday, moving through areas closer towards McCook, North Platte, and also getting into areas. It looks like even out towards

parts of not only Colorado, but then moving out to the Midwest. This is going to be a multi-day

event. So we're talking about a three out of five level of threats. We could see some isolated tornadoes, certainly hail damaging wind. And then that threat expands into your Sunday and your Monday. But Sunday's threat, we could see some powerful tornadoes out of that. And then the area gets larger from Wichita all the way up towards Des Moines, Iowa, even out towards Green Bay, you still have a two out of five level threat with isolated tornadoes possible. We'll have more coming up in a little bit. Rachel, we'll send it back over your way. Yeah, a lot of people on alert this morning. Okay, Leslie, thank you. Now to the other breaking news overnight, the busiest commuter rail system in North America hit by a strike. 7,000 Long Island railroad workers walking off the job after a deal was not reached at midnight

ABC's ike ajachi has the latest good morning ike good morning rachel we're here at penn

station where just hours ago it was a mad dash to get home and now it's a picket line

li double r workers walked off the job at 12.1 a.m. this morning after the unions and the MTA failed to reach an agreement over health care and pay.

What do we want?

When do we want it?

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