New Hampshire, 2011

Heavy Snow in New Hampshire, February 5 to 6, 2011

February 5 to 6, 2011 · NWS GYX · 4 events in 4 counties and zones

An area of low pressure intensified rapidly as it moved from the Carolina Coast on the morning of the 5th to near Nova Scotia by the morning of the 6th. Strong southeasterly flow ahead of the system caused snow to change rapidly to sleet, freezing rain, and rain in southern and eastern areas.

Where it happened

Every event with a place to put it; 4 filed by county or forecast zone are drawn at its center, in a lighter ring. 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
None recorded
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.

An area of low pressure intensified rapidly as it moved from the Carolina Coast on the morning of the 5th to near Nova Scotia by the morning of the 6th. Strong southeasterly flow ahead of the system caused snow to change rapidly to sleet, freezing rain, and rain in southern and eastern areas. Farther inland, 6 to 12 inches of snow fell in Coos and Grafton Counties.

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 Feb 5, 12:43 PM EST, 2 hours 17 minutes earlier.

Area forecast discussion, Feb 5, 12:43 PM EST, 2 hours 17 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 heavy snow. Local standard time, as filed.

Heavy Snow, Northern Coos

When
February 5, 3:00 PM EST to February 6, 7:00 PM EST
Where
Northern Coos forecast zone
Reported by
Trained Spotter
Coordinates
44.690, -71.305 (the zone’s center; the record gives no point)

Heavy Snow, Northern Grafton

When
February 5, 3:00 PM EST to February 6, 7:00 PM EST
Where
Northern Grafton forecast zone
Reported by
Trained Spotter
Coordinates
43.941, -71.820 (the zone’s center; the record gives no point)

Heavy Snow, Southern Coos

When
February 5, 3:00 PM EST to February 6, 7:00 PM EST
Where
Southern Coos forecast zone
Reported by
Trained Spotter
Coordinates
44.690, -71.305 (the zone’s center; the record gives no point)

Heavy Snow, Southern Grafton

When
February 5, 3:00 PM EST to February 6, 7:00 PM EST
Where
Southern Grafton forecast zone
Reported by
Trained Spotter
Coordinates
43.941, -71.820 (the zone’s center; the record gives no point)

What these are

Heavy Snow
Snowfall reaching the local warning threshold without the other hazards of a winter storm.

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

The same day elsewhere

More

Every storm in New Hampshire in 2011Every state in 2011This day in weather historyWarnings in New Hampshire, February 2011

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 2026-10-01. Each event’s entry at NCEI: 272885, 272886, 272887, 272888.