Can Sharks be Used to Forecast Hurricanes?

Can Sharks be Used to Forecast Hurricanes?

Recent studies from the University of Miami Rosenstiel School of Marine and Atmospheric Science and ongoing research by the University of Delaware and Rutgers University are shedding new light on how large sharks respond to hurricanes and their potential utility in predicting these powerful storms. While some shark species flee from approaching hurricanes, others, like tiger sharks, exhibit unexpected behavior, even increasing in number after a storm passes, likely due to increased scavenging opportunities. This newfound understanding of shark behavior, coupled with the development of "mobile marine monitors" using tagged sharks, offers a promising, albeit complementary, method for gathering crucial oceanographic data to improve hurricane forecasting, especially as climate change is expected to increase storm intensity.

II. Shark Behavior During Hurricanes

Sharks possess unique biological capabilities that allow them to detect and react to approaching storms, though their responses vary significantly by species.

A. Shark Sensory Abilities for Storm Detection

  • Barometric Pressure Changes: Sharks can "feel changes in atmospheric pressure through a sensitive inner ear and organ unique to many fish called lateral lines" ("Are sharks scared of hurricanes?", p. 6). The lateral line system is a "tube of sensory cells used to detect pressure changes in the surrounding waters" ("Sharks Can Sense Storms", p. 4). This allows them to anticipate a storm well before its arrival.
  • Water Condition Changes: Hurricanes cause "massive waves (as high as 60 feet!) and powerful surges of underwater currents (as deep as 300 feet!), not to mention changes in oxygen levels and salinity (or saltiness) as the ocean’s deep and surface waters mix—all of which can be deadly for marine life" ("Sharks Can Sense Storms", p. 3). Sharks must respond quickly to these changing conditions to survive.

B. Species-Specific Responses

  • Fleeing Behavior: Some shark species exhibit a clear avoidance response to hurricanes.
  • Nurse, Bull, and Hammerhead Sharks: These species "fled the area before the storm arrived" when Hurricane Irma approached Biscayne Bay, Florida, in 2017 ("Are sharks scared of hurricanes?", p. 6). This "fleeing behavior...wasn't surprising" to researchers ("Are sharks scared of hurricanes?", p. 7). Juvenile blacktip sharks have also been observed moving to deeper waters before tropical storms and hurricanes ("Sharks Can Sense Storms", p. 5).
  • "Swarming" or Remaining Behavior: Conversely, some larger, more robust species remain in storm-affected areas, and their numbers may even increase afterward.
  • Tiger Sharks: During Hurricane Matthew (a Category 5 storm in 2016), "the Tiger sharks didn't flinch." The study showed that "during the storm, the number of sharks remained steady." Even more surprisingly, "In the days after landfall, the number of Tiger sharks doubled" ("Are sharks scared of hurricanes?", p. 5).
  • Scavenging Opportunities: Experts hypothesize that this doubling was due to "the increase of scavenging opportunities from the storm killing marine life" ("Are sharks scared of hurricanes?", p. 5). This is the "opposite of what happened in previous studies involving small sharks" ("Are sharks scared of hurricanes?", p. 5).
  • Unanswered Questions: Researchers are still exploring whether "some shark species are attracted to areas recently hit by a hurricane?" and if "they can track the storm with their lateral lines and inner ear?" ("Are sharks scared of hurricanes?", p. 7).

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Armed Militia Threatens Hurricane Helene Relief Workers in North Carolina Hampering Efforts

Armed Militia Threatens Hurricane Helene Relief Workers in North Carolina Hampering Efforts

Federal emergency response personnel in North Carolina were temporarily relocated due to reports of an "armed militia" threatening government workers involved in Hurricane Helene recovery efforts. Misinformation and rumors have been spreading throughout the affected areas, resulting in hostility towards federal agencies and a decline in the acceptance of aid offered by FEMA and the Forest Service. These incidents have also resulted in harassment and threats directed at federal employees. “Around 1 p.m. Saturday, an official with the U.S. Forest Service, which is supporting recovery efforts after Hurricane Helene along with the Federal Emergency Management Agency, sent an urgent message to numerous federal agencies warning that “FEMA has advised all federal responders Rutherford County, NC, to stand down and evacuate the county immediately. The message stated that National Guard troops 'had come across x2 trucks of armed militia saying there were out hunting FEMA.’” - Washington Post

14 Okt 202414min

Florida’s Insurance Crisis Deepens in the Wake of Hurricanes Helene & Milton

Florida’s Insurance Crisis Deepens in the Wake of Hurricanes Helene & Milton

Hurricane Milton is poised to severely impact Florida's already struggling property insurance market. This comes after the state faced record-breaking insurance costs and several insurance company failures, leading to the rise of Citizens Property Insurance Corporation, a non-profit that provides coverage to homeowners unable to find it in the private market. The state has been trying to stabilize the market through legal reforms and by encouraging private insurers to return, but Milton's potential devastation could push prices higher and further strain the system. Although Florida's real estate market remains resilient, a significant storm could lead to more insurers withdrawing from the state, leaving Citizens to cover a larger portion of the losses, potentially putting the state in a difficult financial position.

14 Okt 20248min

EC-AIFS AI Euro Model Blows Away the Competition with Hurricane Milton Forecast

EC-AIFS AI Euro Model Blows Away the Competition with Hurricane Milton Forecast

Advancements in hurricane forecasting with the introduction of the ECMWF EC-AIFS, a new artificial intelligence model does incredible job with Milton prediction. It boasts significantly higher accuracy compared to other models, predicting the landfall of Hurricane Milton with an error margin of only 13 miles. We emphasize the model's potential to save lives, resources, and time by pinpointing the most accurate landfall location. Additionally, the importance of continuously improving forecasting skills by analyzing past predictions and current atmospheric conditions to make the most informed decisions is an important part of hurricane forecasting today that need a human touch.

14 Okt 20244min

Climate Change Impacts on Hurricane Milton: Wetter, Windier & More Destructive

Climate Change Impacts on Hurricane Milton: Wetter, Windier & More Destructive

World Weather Attribution examines the effects of climate change on Hurricane Milton, which recently made landfall in Florida. The report from WA analyzes the hurricane's intensity, rainfall, and wind speeds, concluding that climate change significantly increased the likelihood and intensity of the storm. The report also discusses the impact of Hurricane Milton on Florida's infrastructure and preparedness, highlighting the vulnerability of low-income and minority communities. It then provides an overview of the effects of climate change on hurricanes globally, emphasizing the growing trend of more intense storms and the need for better preparedness and adaptation measures.

12 Okt 20248min

Was Mar-a-lago Open to Trump Supporters to Evacuate for Hurricane Milton?

Was Mar-a-lago Open to Trump Supporters to Evacuate for Hurricane Milton?

Claims are circulating on social media that former President Donald Trump is offering free lodging at his properties, including Mar-a-Lago, to Trump supporters displaced by Hurricane Milton. There are various posts from social media users, some claiming that Trump is offering shelter and others stating that the claims are false. It also includes a statement from a representative of Trump National Doral, saying that the hotel is fully booked. Do you think the claims about free lodging for Trump supporters at Mar-a-Lago are true?

12 Okt 20248min

Hurricane Milton Conspiracy Theories: Putting Lives at Risk

Hurricane Milton Conspiracy Theories: Putting Lives at Risk

We explore the spread of misinformation surrounding hurricanes, particularly the recent Hurricanes Helene and Milton.A Broward County School Board member has been spreading false claims about FEMA's response to Hurricane Helene, including that the agency was withholding aid and diverting funds. There are harmful effects of misinformation, specifically focusing on meteorologists who are facing threats and harassment from individuals who believe the government controls weather events. This misinformation is amplified during times of political polarization and heightened anxiety, particularly during election years. Brian McNoldy, a University of Miami meteorologist and reaseach scientist debunks conspiracy theories surrounding Hurricane Milton, including the claim that the government is manipulating weather patterns to steer the storm towards specific locations. These issues demonstrate the dangers of spreading misinformation during natural disasters, which can negatively impact relief efforts and potentially endanger lives. Cover photo from Miami New Times

11 Okt 20248min

Hurricane Milton - The Good, the Bad, and the Ugly

Hurricane Milton - The Good, the Bad, and the Ugly

The aftermath of Hurricane Milton, which hit Florida yesterday, and its impacts on different parts of the state will be memorable for years to comeThe storm's three phases, with intense tornadoes in the first phase, storm surge in the second, and strong winds and heavy rain in the third highlight that Hurricanes are not always one dimensional. The accuracy of the National Hurricane Center's forecasts, particularly for the storm's track were phenomenal, but challenges in predicting rapid intensification still exist. Florida hurricanes can come rapid fire, and while that’s not new, sea level rise and warming sea surface temperatures are bringing us new challenges. Increased preparedness and better construction standards should be the focus in order to weather these recurring hurricane threats.

11 Okt 20246min

Hurricane Milton - Florida Hazards Include Storm Surge, Flash Flood, High Wind, & Tornados 🌪️

Hurricane Milton - Florida Hazards Include Storm Surge, Flash Flood, High Wind, & Tornados 🌪️

Hurricane Milton is expected to make landfall on the West Coast of Florida, bringing with it the threat of dangerous storm surge, strong winds, and heavy rainfall. The National Hurricane Center has issued warnings for the entire Florida peninsula, urging residents to prepare for the storm by evacuating low-lying areas, securing their homes, and stocking up on essential supplies. The storm's impact is expected to be particularly severe in the Tampa Bay Area and Southwest Florida where the surge could reach up to 13 feet. With saturated soil from the preceding rain, the storm is expected to cause extensive tree damage and power outages.

9 Okt 20247min

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