时间:2025-01-31 09:39:39 来源:网络整理编辑:娛樂
The Atlantic Ocean is alive.Including Hurricane Florence, there are currently four named storms -- t
The Atlantic Ocean is alive.
Including Hurricane Florence, there are currently four named storms -- tempests with winds of at least 39 mph -- churning in the Atlantic. This ties the record for the most named storms in the Atlantic at any one time.
And there could be more: There's yet another collection of thunderstorms off in the Gulf of Mexico that has a decent, 50 percent shot, of becoming the fifth well-developed, named storm.
SEE ALSO:Hurricane Florence replaced its eyewall. What does that mean?While there's substantial evidence that climate change is having a major impact on the behavior of hurricanes, this current flurry of storms falls within the realm of expected activity for this time of year.
After all, it's the peak of hurricane season.
"Hurricanes and tropical activity often comes in 'bursts' (internal variability), and that's what we're seeing now, coincident with the peak of hurricane season," Falko Judt, a research meteorologist at the National Center for Atmospheric Research, said via email.
"This is the time of year when we expect a lot of activity -- though not always 4 simultaneous named storms!" added Brian McNoldy, a senior research associate at the University of Miami's Rosenstiel School of Marine and Atmospheric Science.
Tweet may have been deleted
During the peak of hurricane season, there's generally a more favorable environment for these types of storms to form than at other times of year.
For one, water in the tropics are at their warmest in September, and hurricanes can't survive without warm, bathtub-like waters. Secondly, wind shear -- winds that hit hurricanes from their sides and break them apart -- is typically lighter this time of year.
Hurricane Florence has been feeding off some unusually warm ocean waters, which played a role in its sustained and atypical westward trek towards the Carolinas.
"Florence was by far the storm that could best take advantage of higher water temperatures, given its path," said Judt.
Sea surface temperatures in the Atlantic showing cooler tropical waters.Credit: tropicaltidbits.comBut overall, warmer waters aren't responsible for stoking the other storms in the Atlantic, which form in the tropics.
In fact, "most of the tropical Atlantic is actually colder than normal right now," Phil Klotzbach, a hurricane scientist at Colorado State University, said over email.
Instead, Klotzbach notes that wind shear, a notorious hurricane-killer, "has been generally quite low."
What's more, Klotzbach said that a seasonal weather pattern near the equator, the Madden-Julian Oscillation (MJO), has driven wind shear down to "anomalously low" levels. But in about a week, the opposite will occur, likely leading to less cyclone activity in the tropics, he said.
Although this burst in storm activity -- which will potentially break the record for named storms at any one time -- is driven largely by expected weather patterns, individual storms like Florence can be enhanced by climate change.
Tweet may have been deleted
Earth's average temperature is increasing, and it's well understood that warmer air is capable of holding more water.
Specifically, for every 1 degree Celsius, or 1.8 degrees Fahrenheit, of warming, the air can hold 7 percent more water. This means storms can suck up more water from the air, giving them more fuel for heavier downpours.
Perhaps worse is the reality that storms around the world are slowing down, as was recently illustrated by NOAA atmospheric scientist Jim Kossin.
"Nothing good can come of a slower storm, Kossin explained.
Hurricane Florence is forecast to do just this as it stalls over the Carolinas this weekend. The National Hurricane Center expects extreme deluges and a good shot at toppling rainfall records.
There is, however, some good news.
Once this batch of storms dies off, "it might be a while until the next one," said McNoldy.
5 people Tim Cook calls for advice on running the biggest company in the world2025-01-31 09:26
In an 'audacious' move, Australia's banks are taking the fight to Apple2025-01-31 09:02
Make your own blowing bubbles and then get drunk off them2025-01-31 08:40
Pro 'Counter2025-01-31 08:27
This app is giving streaming TV news a second try2025-01-31 08:11
UberEats launches in Sydney and you'll never have to leave your desk for lunch again2025-01-31 07:55
Tim Tebow says he won't be speaking at GOP convention2025-01-31 07:35
UK's new environment secretary once asked whether climate change was real2025-01-31 07:30
Researchers create temporary tattoos you can use to control your devices2025-01-31 07:17
Terrorists may soon be detained indefinitely in Australia2025-01-31 07:13
Fyvush Finkel, Emmy winner for 'Picket Fences,' dies at 932025-01-31 09:37
Melbourne mural in memoriam of Taylor Swift is brutal AF2025-01-31 09:24
Leaked video reveals lightning fast Samsung Galaxy Note 7 eye scanner2025-01-31 09:18
Tim Tebow says he won't be speaking at GOP convention2025-01-31 09:07
Richard Branson 'thought he was going to die' in bike accident2025-01-31 08:57
Walk on the wild side with the upcoming H&M and Kenzo collaboration2025-01-31 08:54
Passenger rips plane's overhead cabin panel off while looking for storage space2025-01-31 08:53
The New Yorker's Snapchat is mesmerizing2025-01-31 08:37
New Zealand designer's photo series celebrates the elegance of aging2025-01-31 08:29
Eye doctor reaches out to nearsighted Pokemon Go players2025-01-31 07:37