Sarpy County Hazard Analysis

Winter Storms

Severe winter weather conditions which can effect day-to-day activities in the area. These can include blizzard conditions, heavy snow, freezing rain, heavy sleet, and extreme cold. A blizzard is a perilous winter storm which lasts for at least three hours with winds of at least 35 mph accompanied by considerable blowing snow, reducing visibility. Heavy snow is defined as four inches or more during a 12 hour period.

History - Rating: High

Sarpy County has a lengthy history of winter storms. Several strong winter storms occur in Sarpy County every year. The most severe winter storm in recent years occurred in 1976, devastating most of Sarpy County.

Vulnerability - Rating: High

Most winter storms come from the west. Sarpy County lies directly east of the Rocky Mountains and is susceptible to several winter storms a year.

Maximum Threat - Rating: High

A worst case scenario for a winter storm could be a freezing rain arriving at mid-day, changing to snow, then blizzard conditions following to prevent school children from leaving school and employees from leaving work. If such a storm continued for 24 to 48 hours, food supplies could become short.

Probability - Rating: Medium

Although Sarpy County is susceptible to winter storms, the National Weather Service usually forecasts enough advance notice to provide adequate preparation. Numerous winter storm watches are issued each year although few result in large winter storms.

General Comments:

Primary effects include shortage of food supplies, transportation difficulties, and inadequate heat, shelter, and transportation. Secondary effects include deep and prolonged snow, communications failures, and reception of stranded travelers.

Return to the Sarpy County Hazard Analysis Index

Created January 28, 1997

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