Winter Weather Area
Expect winter weather conditions. Winter driving conditions. Drive carefully.
Minor Impacts
Expect a few inconveniences to daily life. Winter driving conditions. Use caution while driving.
Moderate Impacts
Expect disruptions to daily life. Hazardous driving conditions.
Closures and disruptions to infrastructure may occur.
Major Impacts
Expect considerable disruptions to daily life.
Dangerous or impossible driving conditions. Avoid travel if possible.
Widespread closures and disruptions to infrastructure may occur.
Extreme Impacts
Expect substantial disruptions to daily life.
Extremely dangerous or impossible driving conditions. Travel is not advised.
Extensive and widespread closures and disruptions to infrastructure may occur.
Life-saving actions may be needed.
Data Source: NOAA
Winter Storm Severity Index
(WSSI).
This is an impact-based index indicating potential societal disruption and does not replace
a full weather forecast. Please follow updates from your local
National Weather Service offices
.
This map was developed by Atlas Guo
(
CartoGuophy.com) in 2026
and is not an official product of NOAA.
This map is optimized for viewing on large screens.