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
Hurricane warning
ExtremeHurricane winds (74+ mph) expected within 36 hours. Complete preparations and evacuate if ordered.
Hurricane watch
HighHurricane winds possible within 48 hours. Begin emergency preparations.
Tropical storm warning
ModerateWinds of 39-73 mph expected within 36 hours. Prepare for heavy rain.
Storm surge warning
DeadlyDangerous rise in sea level. Storm surge is a hurricane's deadliest threat.
🛡️Recommendations
Before
- Know your evacuation zone
- Prepare kit with water, food, medicines
- Protect windows with shutters
- Fill your gas tank
- Remove loose objects from yard
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.