Wyoming, 2017

Heavy Snow and Winter Weather in Wyoming, January 31, 2017

January 31, 2017 · NWS UNR · 2 events in 2 counties and zones

A southward advancing Arctic front combined with upper level energy to produce a band of snow across portions of northeastern Wyoming during the afternoon and evening. The heaviest snow fell in the Gillette area, where four to nine inches of snow fell.

Where it happened

Every event with a place to put it; 2 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

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
2

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 UNR wrote it up.

A southward advancing Arctic front combined with upper level energy to produce a band of snow across portions of northeastern Wyoming during the afternoon and evening. The heaviest snow fell in the Gillette area, where four to nine inches of snow fell. The band also extended east-southeast toward the Newcastle area, where up to five inches of snow was reported.

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 Rapid City, SD wrote its last area forecast discussion before the first event at Jan 30, 4:40 PM MST, 14 hours 20 minutes earlier.

Area forecast discussion, Jan 30, 4:40 PM MST, 14 hours 20 minutes before
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Hazardous weather outlook, Jan 30, 2:26 PM MST, 16 hours 34 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

1 heavy snow, 1 winter weather. Local standard time, as filed.

Heavy Snow, Northern Campbell

When
January 31, 7:00 AM MST to 9:00 PM MST
Where
Northern Campbell forecast zone
Reported by
CoCoRaHS
Coordinates
44.248, -105.548 (the zone’s center; the record gives no point)

Winter Weather, Weston

When
January 31, 10:00 AM MST to 10:00 PM MST
Where
Weston forecast zone
Reported by
COOP Observer
Coordinates
43.841, -104.568 (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.
Winter Weather
Snow, sleet or freezing rain below warning levels that still caused disruption, damage or casualties.

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

The same day elsewhere

More

Every storm in Wyoming in 2017Every state in 2017This day in weather historyWarnings in Wyoming, January 2017

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: 669115, 669114.