Why a feed is genuinely useful here. Mexico City is large enough that the difference between a good day and a lost one is often information you could only have had ten minutes earlier: a march closing Reforma, a Metro line suspended, an afternoon storm, an earthquake alert. These accounts — on X, formerly Twitter — are what residents actually watch.
Transport. @MetroCDMX posts line status, closures and incidents in real time; it is the first place to look before setting out. @trafico889 publishes traffic updates every fifteen minutes, naming which routes are moving and which to avoid.
Street closures. @guiaroji warns about marches and blockades — a daily fact of life in the centre and along Reforma — and links to detailed maps.
Earthquakes. @SkyAlertMx is the one to install as an app rather than only follow: it can deliver an alert up to sixty seconds before the shaking reaches you. It also posts webcam feeds, including the Popocatépetl volcano.
Weather. At 2,240 metres this city can run through several seasons in a day: cool mornings, a hard sun at midday, and from June to September rain almost every afternoon. A local weather feed tells you whether to carry a jacket, an umbrella or both.
Worth adding. The official Mi Policía and city government accounts for emergencies and major events, and the 911 and Locatel numbers saved in your phone before you need them. Account handles change: check each one is still active before relying on it.
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