Lorenzo developed from an area of low pressure that the National Hurricane Center had been tracking over the weekend. Overnight, the system became better organized with a large burst of thunderstorms near its center, prompting forecasters to classify it as a tropical storm.

As Hurricane Lorenzo looms in the Atlantic, Hurricane Specialist Bryan Norcross analyzes what's next in the tropics.

First Karen and then Jerry, both short-lived tropical storms fizzled in cooler Atlantic waters. Here's what's being watched now.

The tropical wave in the Atlantic has upgraded to Invest 97-L on Saturday night, according to the National Hurricane Center. Invest 97-L, located southwest of the Cabo Verde Islands, continues to produce a large and persistent area of disorganized showers and thunderstorms, NHC says.

Though we're nearly halfway through October, hurricane season isn't done yet. The National Hurricane Center on Saturday tagged a new area to watch for tropical development.

Despite it being an uneventful Atlantic hurricane season so far, the hurricanes that have formed have exploded in size and strength.