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Hurricane Cristobal formed on Monday night, after the storm took shape Sunday morning near the Bahamas, the National Hurricane Center reports.

The storm is expected to increase in speed on Tuesday, as the center moves away from the Bahamas. It is forecast to move west and north of Bermuda on Wednesday.

A NOAA hurricane hunter plane found that sustained winds were near 75 mph, and there should be some strengthening over the next few days. Cristobal is expected to become a hurricane either late Monday or early Tuesday.

As of 11 am Tuesday, Cristobal was about 545 miles southwest of Bermuda with maximum sustained winds of 75 mph. The storm was moving north at 12 mph.

GALLERY: CRISTOBAL MAKES WAVES

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RADAR: StormTracker 10 weather radar

The official track from the hurricane center keeps the storm well offshore of the east coast of Florida. Keep checking back with the 10 weather team as the track could change.

TROPICS: Track the Tropics with StormTracker 10

A tropical wave is an area of low pressure moving west in the Atlantic Ocean with the trade winds. When a tropical wave becomes organized with wind circulation around a well defined center, it's a tropical cyclone.

The first category of tropical cyclones is tropical depression; when winds reach 39 mph, it's a tropical storm and gets a name; when winds reach 74 mph, the storm is a hurricane.

About 60 percent of all Atlantic tropical storms and minor hurricanes have grown out of tropical waves, and about 85 percent of all major hurricanes (winds of at least 111 mph) have started as tropical waves.

Get your local forecast here

Although hurricane season is June 1 through Nov. 30, peak season is mid-August to late October.

So far this season, only two named storms have formed: Hurricane Arthur formed off Florida's east coast July 1 and made landfall in North Caroline July 3; Hurricane Bertha formed July 31 near the location of the current tropical wave, moved north through the Lesser Antilles, Puerto Rico and the Dominican Republic and ultimately dissipated Aug. 6 off Nova Scotia.

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