Satellite images show Florence, Isaac and Helen flying the Atlantic Ocean on Sunday, September 9, 2018. (National Oceanic and Atmospheric Administration)
After a rather calm summer, the 2018 Atlantic hurricane season is a frenzy of activity during the second week of September, with the possibility of three hurricanes developing in the coming days.
On Sunday, September 9th, National Hurricane Center forecasters followed two hurricanes, a tropical storm and two other sites likely to develop a storm force in the next five days.
According to Phil Klotzbach, a researcher with the Department of Atmospheric Sciences at the University of Colorado, three hurricanes could spread across the Atlantic as early as Monday.
The five-day National Hurricane Center chart shows locations of tropical activity on Sunday, September 9, 2019. (National Oceanic and Atmospheric Administration)
On TwitterKlotzbach said three simultaneous hurricanes were active at the same time last year, from 6 September to 9 September 2017.
"The record for most hurricanes in the Atlantic is August 22, 1893 and September 25 and 26, 1998," Klotzbach tweeted.
The boom in tropical activity follows the coming of New Orleans with Tropical Storm Gordon last week. Since the beginning of the hurricane season, on June 1, nine Atlantic storms have emerged, including four hurricanes.
Last month, the National Oceanic and Atmospheric Administration planned 13 named storms for the entire hurricane season.
The National Hurricane Center's hurricane tracker for Hurricane Florence is shown here starting Sunday, September 9, 2019. (National Oceanic and Atmospheric Administration)
Hurricane Florence, the biggest concern for forecasters, is expected to turn into a Category 4 hurricane in 48 hours, according to the National Hurricane Center. briefing.
Although the Florence Wall still shows "a few pauses", the system pressure dropped rapidly in a few hours on Sunday, signaling that the storm is intensifying. Forecasters are still trying to figure out how fast Florence could move west this week and where she could hit along the east coast – although for the moment she is heading for the southeast coast.
"Although it is too early to determine the exact timing, location and magnitude of these
impacts on the coast and inland of South Carolina in the mid-Atlantic region should closely monitor the progress of Florence, ensure that their hurricane plan is in place and follow the local authority advice "Hurricane Center said.
The National Hurricane Center forecast for Tropical Storm Isaac is shown here on Sunday, September 9, 2019. (National Oceanic and Atmospheric Administration)
According to the National Hurricane Center, at 4pm, labeled "tiny tropical cyclone," Isaac is expected to quickly strengthen his route to the Caribbean Sea to the west. briefing.
Forecasters say the warm waters of the Atlantic and the shear of weak winds make Isaac mature for rapid reinforcement. But these favorable conditions "will probably also be to his detriment", because a strong shear potentially arrives in the next 48 hours and "probably will easily decouple the small system", according to Robbie Berg, hurricane specialist at the Hurricane Center.
For now, Isaac is blowing maximum winds of 70 mph and moving westward at 12 mph, with a prediction model predicting a northward turn in the next two days. The model of the Hurricane Center, however, shows a Nordic turn "unlikely at this time." Isaac may enter the eastern Caribbean Wednesday night or Thursday, say forecasters.
