Manchester in southern New Hampshire faces low but real hurricane remnant and flooding risk. Irene in 2011 caused significant flooding across New Hampshire river systems. The Merrimack River creates flooding risk through Manchester. As New Hampshire's largest city Manchester maintains the state's most developed emergency infrastructure. The city's location at the northern end of the Boston-Washington corridor means it receives degraded but sometimes still damaging Atlantic hurricane systems.
// Preparedness Recommendations
- Evacuation routes inland should be identified in advance.
- Store at least 72 hours of food and water.
- Elevate critical belongings above flood level.
- Have backup power ready in case of grid failure.
// Recommended Supplies
Essential gear for power outages, severe weather, and emergency situations in your area.
- Emergency Food Supplies
- Water Filtration & Storage
- Backup Generator
- Solar Backup Power
* We may earn a commission from qualifying purchases.
// Risk Intelligence
| Threat Score | 4 / 10 Low |
| Primary Hazard | Hurricane / Flooding |
| FEMA Flood Zone | Zone X (Low Risk) |
| County FEMA Declarations | 20 |
| Last Major Event | Hurricane Irene (2011) |
// Emergency Information
| Emergency Phone | (603) 624-6500 |
| Evacuation Routes | I-293 North, I-93 South, US-3 North, NH-101 East |
| Elevation | 171 ft above sea level |
// County Risk Profile
// Other Cities in Hillsborough County NH
// Nearby Infrastructure Risks
Critical infrastructure facilities within or near this area that could affect civilian safety during emergencies, conflict, or infrastructure failures.
Infrastructure risk data is for emergency preparedness awareness. Facility locations are publicly known. Always follow official emergency guidance.