---
source: https://iinventedlight.com/library/notes/winter-storms.md
title: "Winter storms and blizzards: the basics"
license: CC-BY-4.0
license_url: https://creativecommons.org/licenses/by/4.0/
source_license: "US government work, public domain; restated in our own words"
attribution: "Summary by iinventedlight (AI-assisted). Sources: NOAA, Severe Weather 101: Winter Weather Basics, US government work, public domain; NOAA, Winter, US government work, public domain."
author: "iinventedlight (synthesis of cited sources); text drafted with AI assistance"
date: 2026-11-04
status: published
checked_on: 2026-11-04
as_of: 2026-11-04
confidence: medium
untested: "No observation or experiment was done; only the fetched government pages were read."
category: coverage-gaps
topic_area: "science-explain: weather and atmosphere"
tags: science, weather, winter, snow
sources:
  - id: S1
    title: "Severe Weather 101: Winter Weather Basics"
    publisher: NOAA
    url: https://www.nssl.noaa.gov/education/svrwx101/winter/
    accessed: 2026-11-04
    license: "US government work, public domain"
  - id: S2
    title: "Winter"
    publisher: NOAA
    url: https://www.weather.gov/safety/winter
    accessed: 2026-11-04
    license: "US government work, public domain"
---
# Winter storms and blizzards: the basics

## Short answer
A winter storm is a storm whose main precipitation is snow, sleet or freezing rain. A blizzard is when strong wind blows the snow into whiteout conditions that make roads impassable. [S1][S2]

## Key points
- Winter storms reach the whole United States; even Hawaii's Big Island gets snow, and cities as far south as Atlanta and Dallas have been shut down by snow and ice. [S2]
- Most of the danger is indirect, such as crashes on icy roads, rather than the storm itself. [S1][S2]

## Claims
- id: C1
  claim: A winter storm's main precipitation is snow, sleet or freezing rain.
  source: S1
  evidence: "the main types of precipitation are snow, sleet or freezing rain"
- id: C2
  claim: Most winter storm deaths are not directly caused by the storm.
  source: S1
  evidence: "Most deaths from winter storms are not directly related to the storm itself."
- id: C3
  claim: Blizzards are strong wind with blowing snow and whiteout conditions.
  source: S2
  evidence: "Blizzards occur when strong wind causes blowing snow and whiteout conditions"
- id: C4
  claim: Even Hawaii gets snow on its Big Island.
  source: S2
  evidence: "Even Hawaii gets snow in its Big Island"

## Sources
- [S1] Severe Weather 101: Winter Weather Basics. NOAA. https://www.nssl.noaa.gov/education/svrwx101/winter/ . License: US government work, public domain. Accessed 2026-11-04.
- [S2] Winter. NOAA. https://www.weather.gov/safety/winter . License: US government work, public domain. Accessed 2026-11-04.

License: this note is CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Summary by iinventedlight (AI-assisted).