Hurricane Florence helped launch new storms in the Atlantic

Hurricane Florence has long since disappeared, but it 's certainly not forgotten in the atmosphere. The residual energy and moisture of the storm are partly responsible for two tropical systems in the Atlantic Ocean currently. They pose no threat to the earth at the moment, but the mere presence of a storm in the ocean is disconcerting for the inhabitants who still have to cope with the fallout from Florence's landings and historic floods.

The National Hurricane Center monitors the two tropical systems linked to Florence. The subtropical storm Leslie formed on Sunday morning in the north-central Atlantic Ocean. A subtropical storm is a partially tropical storm – the system does not have quite tropical features, but its structure is close enough for the NHC to name and forecast as tropical. It is expected that Leslie will be short-lived and should not affect anyone except ships and planes crossing the ocean.

The second system, located near Bermuda, could become a depression or a tropical storm this week, as it slowly spreads to the sea. Its proximity to the United States – and North Carolina in particular – is troubling, but even if there is a risk that rains will arrive in the already flooded Carolinas, the system should not be too big.

These two systems are partly related to Hurricane Florence. The old storm, which stalled after touching land near Wilmington, North Carolina, on September 14, 2018, crawled at an average speed of about 5 mph for several days after its eye arrived on the ground. The slow speed of Florence allowed thunderstorms to shelter the same areas of North Carolina for several days, causing historic floods that killed dozens of people and left much of the region affected without electricity and largely inaccessible by car.

A top-level trough seized what was left of Florence and finally pulled it out of the Carolinas last week. The remains of the storm fell on New England before spreading over the North Atlantic Ocean. The residual energy and moisture of Florence, now widely dispersed in the atmosphere, contributed to the formation of the subtropical Leslie storm and disturbance near Bermuda.

It is not uncommon for tropical cyclones to regenerate after their dissipation. Some storms even find their name when they find a new life.

Hurricane Ivan is the most notorious example of a storm regenerating itself long after the landing. The storm hit Alabama with winds of 120 km / h on September 16, 2004. It has traveled inland after having devastated coastal areas, causing a historic tornado surge through the Mid-Atlantic. Atlantic before crossing the West Atlantic. The remnants of the storm moved south along the coast, crossed Florida and reconverted to a tropical storm in the Gulf of Mexico a week later on September 22nd. hurricane experts from the agency. The second birth of Ivan landed in western Louisiana on September 23rd.

However, a system must retain its identity after losing tropical features to recover its name, and this is certainly not the case this week. Neither the subtropical storm nor the monitored disturbances are direct descendants of the end of Florence – they are simply influenced by it. The closest analogy would be to call distant relatives of current systems. But while Florence may not be returning from the grave, it is true that this devastating storm continues to influence our time.