Read the centre track, not a boundary of safety
The US National Hurricane Center (NHC) guide to graphical products explains that its forecast cone depicts uncertainty in the future position of a tropical cyclone's centre. The storm itself is much wider than a point. Winds, rain, surge and other impacts can occur outside the cone. Being outside its shaded area is therefore not an all-clear, and being inside it does not tell you the exact wind speed at your address.
Use the issue time on the forecast graphic. Each advisory can revise the predicted path, and the cone widens farther into the future because position uncertainty grows. The NHC cone explainer distinguishes the track forecast, current wind field and watch or warning areas. Do not turn a saved graphic into a current forecast without checking the newer advisory.
What to look for beyond the track
The NHC's public-advisory guide describes the summary, watches and warnings, discussion, hazards and next-advisory sections. These text sections matter because a single line on a map cannot convey all threats. Wind, rainfall and coastal flooding affect places differently and can change on different timescales. Read the hazard details for your locality rather than focusing only on whether the centre line passes nearby.
For Atlantic-basin storms, the NHC tropical-cyclone watch and warning product summarizes US coastal and inland wind and storm-surge watches and warnings. Coverage differs in the eastern Pacific and other jurisdictions; check the applicable basin product, National Weather Service office and local emergency authority. Zone representations can be approximate, so follow the full official advisory for a specific location. A watch, warning and forecast cone are separate products with separate meanings.
Where PocketWorld fits
Use the PocketWorld hurricane tracker for broad geographic context and available provider-labelled storm records. Inspect the source, event date and freshness before comparing a marker or track with an NHC product. A global event marker may summarize a storm, omit local hazard fields or remain visible after its operational status changes. It is not an official NHC advisory, and an empty map does not indicate that coastal or inland hazards have ended.
For a careful comparison, note the storm name or identifier, basin, advisory time and forecast valid time. Then compare the NHC centre forecast with the appropriate wind, surge or rain product. Do not mix a historical storm page with a current advisory, or infer a landfall point from the centre of a shaded cone.
For decisions, use the current authorities
Evacuation, shelter and road decisions belong to current local and state emergency authorities, informed by official NHC and National Weather Service products. PocketWorld provides context, not an alert channel. If you share a map image, identify the issuing agency and update time so someone else can verify it. Our methodology explains the distinction between provider data and the interface that displays it.
Data sources
References are linked beside the explanations above. This evergreen guide does not report current incidents.