SouthernWorldwide.com – The Atlantic hurricane season officially runs from June 1st to November 30th each year. Hurricanes are classified using the Saffir-Simpson Hurricane Wind Scale, a system that categorizes storms into five levels based on their sustained wind speeds.
This scale not only indicates the intensity of the storm but also provides an estimate of the potential damage to property, ranging from minor to catastrophic.
The 2025 Atlantic hurricane season saw its first major storm, Hurricane Erin, which rapidly intensified to a Category 5 on August 16th. Although it weakened before making direct landfall, it still generated dangerous waves and rip currents.
A hurricane is defined as a “major hurricane” if it reaches Category 3, 4, or 5. The National Hurricane Center designates these storms as major due to their potential to cause significant loss of life and widespread damage.
However, storms categorized as 1 or 2 are still considered dangerous and can pose serious threats.
The Saffir-Simpson Hurricane Wind Scale provides a detailed breakdown of each category, outlining the associated wind speeds and expected damage.
Category 5
Sustained wind speeds of 157 mph or higher.
- Expected Damage: Catastrophic damage is anticipated. A high percentage of framed homes will be destroyed, with complete roof failure and wall collapse. Fallen trees and power poles will render residential areas isolated. Power outages are expected to last for weeks, possibly months, and most of the affected areas will be uninhabitable for an extended period.
- Notable Storms: This category includes historical storms like 1992’s Hurricane Andrew, which was the most destructive to hit Florida. 2017’s Hurricane Irma devastated several Caribbean islands as a Category 5 before impacting Florida as a Category 4, becoming the costliest hurricane to hit the state. 1969’s Hurricane Camille, which made landfall in Mississippi, caused a massive storm surge and resulted in over 250 fatalities.
Category 4
Sustained wind speeds ranging from 130 to 156 mph.
- Expected Damage: Catastrophic damage is expected. Even well-built framed homes can sustain severe damage, including the loss of most of their roof structure and some exterior walls. Trees are likely to be snapped or uprooted, and power poles downed, leading to the isolation of residential areas. Power outages could last for weeks to months, and inhabitants may be unable to return to their homes for an extended period.
- Notable Storms: In 2017, Hurricane Harvey made landfall as a Category 4 in Texas and Louisiana, leaving behind catastrophic flooding. Hurricane Ida, in 2021, also made landfall in Louisiana as a Category 4, causing severe flooding, widespread power outages for over a million people, and spawning tornadoes as it moved northeast.
Category 3
Sustained wind speeds between 111 and 129 mph.
- Expected Damage: Devastating damage will occur. Well-built framed homes may experience significant damage, including the removal of roof decking and gable ends. Numerous trees will be snapped or uprooted, blocking roads. Electricity and water services will likely be unavailable for several days to weeks after the storm passes.
- Notable Storms: During the busy 2020 hurricane season, Hurricane Zeta strengthened to a Category 3 just before making landfall in Louisiana as a Category 2. 2005’s Hurricane Wilma, which reached Category 5 intensity at its peak, was a Category 3 when it struck Florida.
Category 2
Sustained wind speeds from 96 to 110 mph.
- Expected Damage: Extremely dangerous winds will cause extensive damage. Well-constructed frame homes could suffer major damage to their roofs and siding. Many trees with shallow root systems will be snapped or uprooted, blocking roads. Near-total power loss is anticipated, with outages potentially lasting from several days to weeks.
- Notable Storms: Hurricane Floyd made landfall in North Carolina in 1999 as a Category 2 storm, causing widespread flooding as it moved up the coast and leading to school cancellations in New Jersey and New York City. In 2008, Hurricane Ike made landfall in Texas as a Category 2 storm, having weakened from its peak strength as a Category 4.
Category 1
Sustained wind speeds between 74 and 95 mph.
- Expected Damage: Very dangerous winds will produce some damage. Well-constructed frame homes may experience damage to their roofs, shingles, vinyl siding, and gutters. Large tree branches will snap, and shallowly rooted trees may be toppled. Extensive damage to power lines and poles is likely, resulting in power outages that could last from a few days to several days.
- Notable Storms: Hurricane Sandy was a Category 1 storm when it made landfall in New Jersey in 2012, and its storm surge caused significant flooding in New York City. In 2011, Hurricane Irene was a Category 1 storm when it hit North Carolina, but it had weakened to a tropical storm by the time it made landfall again in New Jersey, causing widespread flooding in New Jersey, New York, and as far north as Vermont.
Should there be a Category 6?
In 2017, amidst a particularly active hurricane season, discussions arose about the possibility of storms exceeding Category 5. While there is officially no Category 6, some climate scientists have discussed the idea of revising or expanding the scale.
This is due to concerns that the current categories may not adequately represent the increasing intensity of storms driven by climate change.
What category was Hurricane Katrina?
Hurricane Katrina, in 2005, reached Category 5 intensity over the Gulf of Mexico. However, it made landfall as a Category 3 storm. It ultimately caused devastating flooding in over 80% of New Orleans and resulted in more than 1,200 fatalities, making it one of the deadliest hurricanes to strike the U.S.
It remains one of the costliest hurricanes in U.S. history, with damages exceeding $75 billion. Louisiana, Mississippi, Alabama, and Florida all experienced significant destruction from Katrina.
What category was Hurricane Ian?
Hurricane Ian was a strong Category 4 storm when it made landfall on Florida’s west coast in 2022. This deadly storm caused widespread power outages for millions of people.
Experts noted the storm’s rapid intensification, which was attributed to warm sea temperatures. Warming seas, linked to climate change, are expected to lead to more frequent and intense hurricanes, slower storm movement, and increased rainfall.
