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North Dakota: Risks & Trends

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Same standard as every other page on this site: every figure below is independently sourced, and figures that vary across sources, or measure genuinely different things, are flagged as such rather than collapsed into one number that looks more precise than the underlying data actually supports.

Grand Forks and the 1997 Red River flood

MetricFigure
Grand Forks crest 54 ft, well above the NWS's 49 ft worst-case estimate
People evacuated from Grand Forks 50,000+
Floodwater inland reach 3+ mi past the river's normal banks
Downtown fire during the flood 11 buildings and 60 apartment units burned before firefighters could reach the blaze
Post-flood levee system cost $409 million (federally funded)
Regional total damage (Red River basin) $3.5 billion (see Minnesota's page for the full regional breakdown)

A fire the flood itself made worse

Grand Forks’s downtown fire broke out in the middle of the evacuation, and floodwater actively slowed firefighters’ ability to reach it, letting it consume 11 buildings before being contained. It’s a clear example of how one disaster can directly disable the response capacity needed for a second, simultaneous emergency.

The Blizzard of 1966

MetricFigure
Dates March 2-4, 1966
Duration 3 days
Peak winds Up to 70 mph
Deaths (ND and surrounding region) 18+
Livestock losses Thousands
Historical ranking Widely considered the worst recorded storm in North Dakota history

Duration, not just intensity, made this the worst on record

The 1966 blizzard is remembered as North Dakota’s worst storm largely because of how long it persisted, three full days of sustained high winds and heavy snow, rather than any single moment of extreme intensity. A shorter, more intense storm might have produced less cumulative damage than this one’s sheer duration did.

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