Not an official warning

This Learning Center provides educational reference material only. It does not originate watches, warnings, or advisories. For active alerts, check official National Weather Service products and local emergency management channels.

Hazard explainers

Weather Hazards

Understand what different weather hazards mean and how to prepare.

9 hazards

Severe Thunderstorm

Storms with damaging wind, large hail, or tornado potential require immediate indoor shelter.

Tornado

A violently rotating column of air can cause catastrophic damage in minutes.

Flooding

Flood water is deceptive and dangerous. Most flood deaths occur in vehicles.

Winter Weather

Snow, ice, and extreme cold create travel and health risks.

Extreme Heat

Prolonged high temperatures increase risk of heat-related illness.

Extreme Cold

Sub-freezing temperatures and wind chill create rapid exposure risks.

Fire Weather

Dry conditions, low humidity, and wind increase wildfire spread risk.

Tropical Weather

Hurricanes and tropical storms bring wind, surge, flooding, and tornadoes inland.

Air Quality and Smoke

Wildfire smoke and pollution can make outdoor air unhealthy.