Weather Alerts
Weather Alerts Explained
Weather alerts are official products issued by the National Weather Service and related NOAA offices to describe hazardous weather conditions that are possible, expected, occurring, or recently observed.
The exact meaning depends on the product. A watch usually means conditions are possible, a warning means a hazard is occurring or imminent, and an advisory highlights less extreme but still disruptive conditions.
What it means
Weather alerts are official products issued by the National Weather Service and related NOAA offices to describe hazardous weather conditions that are possible, expected, occurring, or recently observed.
The exact meaning depends on the product. A watch usually means conditions are possible, a warning means a hazard is occurring or imminent, and an advisory highlights less extreme but still disruptive conditions.
Why it matters
Alerts can affect school, commute, outdoor, power, aviation, and household plans. They also often interact with other signals such as outage reports, airport delays, flooding, smoke, or road closures.
The safest interpretation is to treat HazardNow as a dashboard for context, then read the official alert text and local instructions before making decisions.
What to watch
- Alert type, severity, affected area, start time, expiration time, and update time.
- Whether multiple alert types overlap in the same area.
- Nearby power, aviation, air quality, and local-condition changes that could compound the weather impact.
How HazardNow uses this signal
HazardNow summarizes public NWS alerts alongside other disruption categories so users can see whether weather is the main issue or part of a broader pattern.
The dashboard links weather context to data-source notes and related preparedness pages instead of treating a static explainer as live alert information.
Limitations
HazardNow is informational only. For urgent decisions, protective actions, warnings, evacuations, closures, medical guidance, utility restoration, or travel instructions, follow official agencies and local authorities.
- Alert boundaries and timing can change after a dashboard snapshot.
- HazardNow may simplify official wording for scanning and is not the source of record.
- Local emergency managers can issue instructions that matter more for your location than a general regional summary.
Related HazardNow pages
Official/public sources
These links are starting points for source verification. Local instructions, official alert text, and agency updates take priority.
FAQ
Is HazardNow a weather warning service?
No. HazardNow is an informational dashboard that summarizes public signals. Official NWS products and local authorities remain the warning sources to follow.
Why do alerts sometimes look different across websites?
Sites may refresh at different times, simplify wording, use different geographic filters, or display corrected alert products at different moments.