New Hampshire, 2008

Flooding in New Hampshire, September 6 to 9, 2008

September 6 to 9, 2008 · NWS GYX · 4 events in 1 county or zone

The remains of tropical storm Hanna moved through eastern New England dumping 3 to 6 inches of rain in New Hampshire in about 8 hours causing rapid rises on area streams. Road washouts were the major problem.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
$105,000
Crop damage
None recorded
Events
4

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS GYX wrote it up.

The remains of tropical storm Hanna moved through eastern New England dumping 3 to 6 inches of rain in New Hampshire in about 8 hours causing rapid rises on area streams. Road washouts were the major problem. Several people were evacuated from Epsom Valley and Lazy River Campground in Epsom.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Gray, ME wrote its last area forecast discussion before the first event at Sep 6, 3:11 PM EST, 5 hours 49 minutes earlier.

Area forecast discussion, Sep 6, 3:11 PM EST, 5 hours 49 minutes before
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The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

4 flood. Local standard time, as filed.

Flood, Merrimack

When
September 6, 9:00 PM EST to September 9, 5:00 AM EST
Where
Merrimack County, 0.41 mi NNE of Epsom to 0.22 mi NNE of Gossville
Cause
Heavy Rain
Property damage
$25,000
Reported by
Emergency Manager
Coordinates
43.225, -71.327

Heavy rain from the remnants of tropical storm Hanna resulted in flooding on small rivers and streams in the Epsom area.

Flood, Merrimack

When
September 6, 9:00 PM EST to September 9, 5:00 AM EST
Where
Merrimack County, 1.16 mi S of Suncook to 0.77 mi SSE of Suncook
Cause
Heavy Rain
Property damage
$50,000
Reported by
Emergency Manager
Coordinates
43.113, -71.451

Heavy rain from the remnants of tropical storm Hanna caused flooding on small rivers and streams in the Hooksett area.

Flood, Merrimack

When
September 6, 9:00 PM EST to September 9, 5:00 AM EST
Where
Merrimack County, 0.57 mi NW of Pembroke to 0.63 mi SSE of Pembroke
Cause
Heavy Rain
Property damage
$10,000
Reported by
Emergency Manager
Coordinates
43.157, -71.476

Heavy rain from the remnants of tropical storm Hanna resulted in flooding on small rivers and streams in the Pembroke area.

Flood, Merrimack

When
September 6, 9:00 PM EST to September 9, 5:00 AM EST
Where
Merrimack County, 0.81 mi WNW of Allenstown to 1.68 mi ENE of Allenstown
Cause
Heavy Rain
Property damage
$20,000
Reported by
Emergency Manager
Coordinates
43.174, -71.415

Heavy rain from the remnants of tropical storm Hanna resulted in flooding on small rivers and streams in the Allentown area.

What these are

Flood
Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in New Hampshire in 2008Every state in 2008This day in weather historyWarnings in New Hampshire, September 2008

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-30. Each event’s entry at NCEI: 136192, 136193, 136194, 136195.