The first will be the trough moving across the North Atlantic this weekend, and the second being the massive ridge that develops over the northeast and over-top of Florence next week. As Florence's path moves closer to the US coastline in the next week Florence is expected to regain category three hurricane status.
Whichever of these scenarios pans out, Bermuda is very likely to feel serious impacts from the storm.
The hurricane - now teetering between Category 2 and Category 3 status - gained some momentum in the Atlantic on Wednesday night, reaching wind speeds above 130 mph, making it a Category 4, if only for a few hours. This westerly motion will continue through the weekend, allowing the storm to creep closer and closer to the United States.
Still, there are some troubling signs in the major computer models that meteorologists use to predict hurricane tracks a week or more in advance.
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Hurricane Florence has weakened some but will likely strengthen again into a major hurricane and could threaten the US East Coast by next week. He went on to caution residents along the U.S. East Coast that it was too soon to determine "what, if any", impacts Florence could have in those areas.
Now the storm sits several hundred miles east-south east of Bermuda, but is traveling on a west north-westerly course, which puts Bermuda in its direct path.
Tropical Storm Helene is in the Far Eastern Atlantic, just off the African Coast.
Showers and thunderstorms in a second wave and low pressure system moving off the coast also increased Friday, upping the chances of a depression or tropical storm likely forming later in the day. Long range forecast data on this system also shows a general westward movement into the central Atlantic over the next five days, then diverging greatly on whether Invest 93 will track all the way across the Atlantic or turn north.
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Florence may be close to the East Coast by the middle or end of next week.
The Emergency Measures Organisation is monitoring the storm's track.
The peak of hurricane season in the Atlantic Ocean is September 10, and right on schedule, the Atlantic Basin has come to life with numerous areas of concern.
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