Del Blog de Jeff Masters...
Northern Atlantic disturbance
An extratropical low pressure system has cut off from the jet stream near 37N, 43W, about 700 miles southeast of Newfoundland, Canada. This low is over 26.5°C waters, and is slowly acquiring tropical characteristics. Heavy thunderstorm activity is building near the center of the low as it drifts westwards at 10 mph. NHC is giving this system a medium (20-50% chance) of developing into a tropical storm or tropical depression by Tuesday. By Wednesday, this storm should get caught up by the jet stream and recurved out to sea without affecting any land areas.