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Hurricanes

Hurricanes are Earth's most powerful storms. Learn about categories, alerts and how to prepare.

📊Saffir-Simpson scale

Cat. 1

74-95 mph
Minimal damage

Cat. 2

96-110 mph
Moderate damage

Cat. 3

111-129 mph
Extensive damage

Cat. 4

130-156 mph
Catastrophic

Cat. 5

157+ mph
Devastating

📅 Hurricane season

The official Atlantic hurricane season starts June 1 and ends November 30. Peak activity occurs between August and October. It's important to be prepared throughout the season.

June 1 - November 30

⚠️Alert types

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Hurricane warning

Extreme

Hurricane winds (74+ mph) expected within 36 hours. Complete preparations and evacuate if ordered.

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Hurricane watch

High

Hurricane winds possible within 48 hours. Begin emergency preparations.

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Tropical storm warning

Moderate

Winds of 39-73 mph expected within 36 hours. Prepare for heavy rain.

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Storm surge warning

Deadly

Dangerous rise in sea level. Storm surge is a hurricane's deadliest threat.

🛡️Recommendations

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Before

  • Know your evacuation zone
  • Prepare kit with water, food, medicines
  • Protect windows with shutters
  • Fill your gas tank
  • Remove loose objects from yard
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During

  • Stay in interior room without windows
  • Don't go out during the "eye"
  • Keep battery radio on
  • Stay away from flooding
  • Don't use candles (fire risk)

After

  • Wait for return authorization
  • Avoid downed wires and standing water
  • Document damage for insurance
  • Use generators outdoors only
  • Check structural integrity

🌀 Track hurricanes in real time

Check our tools to follow tropical storm and hurricane trajectories.

Sources

Information from National Hurricane Center and Ready.gov.