North Dakota, 2021Freezing Fog in North Dakota, February 1 to 3, 2021
February 1 to 3, 2021 · NWS BIS · 5 events in 5 counties and zones
Multiple days of dense fog combined with below freezing temperatures led to rime ice forming on power lines over portions of south central North Dakota into the southern James River Valley. Many power lines had rime ice accumulations of over three inches diameter, which led to lines sagging and some snapping.
Every event with a place to put it; 5 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
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- Deaths
- 0
- Injuries
- 0
- Property damage
- $385,000
- Crop damage
- None recorded
- Events
- 5
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.
Multiple days of dense fog combined with below freezing temperatures led to rime ice forming on power lines over portions of south central North Dakota into the southern James River Valley. Many power lines had rime ice accumulations of over three inches diameter, which led to lines sagging and some snapping. This included not only distribution lines, but also main transmission lines which feed power to substations. Approximately 2,000 electric customers suffered power outages, with some outages lasting a couple of days. Through the event, linemen were repairing snapped lines and manually clearing ice off the lines to prevent further breakage. In addition, 14 wooden power poles were broken from the weight of the ice covered lines.
Freezing Fog, Dickey
- When
- February 1, 12:00 AM CST to February 3, 10:00 AM CST
- Where
- Dickey forecast zone
- Property damage
- $65,000
- Reported by
- Utility Company
- Coordinates
- 46.110, -98.505 (the zone’s center; the record gives no point)
Multiple days of freezing fog led to rime ice accumulation on power lines in Dickey and LaMoure counties. Approximately 1,300 services in total between the two counties experienced outages. Six power poles, in total, were broken, and some substations went down due to transmission line outages.
Freezing Fog, McIntosh
- When
- February 1, 12:00 AM CST to February 3, 10:00 AM CST
- Where
- McIntosh forecast zone
- Property damage
- $175,000
- Reported by
- Utility Company
- Coordinates
- 46.112, -99.441 (the zone’s center; the record gives no point)
Multiple days of freezing fog led to rime ice accumulation on power lines. This led to 707 services and three substations loosing power in the McIntosh, Logan, and Emmons County areas. McIntosh County was hardest hit with the loss of eight power poles.
Freezing Fog, Logan
- When
- February 1, 12:00 AM CST to February 3, 10:00 AM CST
- Where
- Logan forecast zone
- Property damage
- $40,000
- Reported by
- Utility Company
- Coordinates
- 46.457, -99.477 (the zone’s center; the record gives no point)
Multiple days of freezing fog led to rime ice accumulation on power lines. This led to 707 services and three substations loosing power in the Logan, McIntosh and Emmons County areas.
Freezing Fog, Emmons
- When
- February 1, 12:00 AM CST to February 3, 10:00 AM CST
- Where
- Emmons forecast zone
- Property damage
- $40,000
- Reported by
- Utility Company
- Coordinates
- 46.285, -100.239 (the zone’s center; the record gives no point)
Multiple days of freezing fog led to rime ice accumulation on power lines. This led to 707 services and three substations loosing power in the Emmons, McIntosh and Logan County areas.
Freezing Fog, La Moure
- When
- February 1, 12:00 AM CST to February 3, 10:00 AM CST
- Where
- La Moure forecast zone
- Property damage
- $65,000
- Reported by
- Utility Company
- Coordinates
- 46.457, -98.535 (the zone’s center; the record gives no point)
Multiple days of freezing fog led to rime ice accumulation on power lines in LaMoure and Dickey counties. Approximately 1,300 services in total between the two counties experienced outages. Six power poles, in total, were broken, and some substations went down due to transmission line outages.
- Freezing Fog
- Fog that froze on contact with roads, vehicles or structures.
After NWS Directive 10-1605, the rules offices file Storm Data by.
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- Winter Storm and Coastal Flood in Massachusetts, February 1 to 2, 2021$207,000 · 50 kt wind · 21 events
- Winter Storm and Winter Weather in Vermont, February 1 to 2, 2021$120,000 · 16 events
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- Drought in New Mexico, February 1 to 28, 202141 events
- Winter Storm in Pennsylvania, February 1 to 2, 202129 events
- Winter Weather in Kentucky, February 1 to 2, 202128 events
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- Drought in Colorado, February 1 to 28, 202121 events
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: 945303, 945304, 945308, 945309, 946133.