Weather and sea guides

Plain guides to understand forecast data, official SMN alerts and the sea.

• What each SMN alert color meansWhat green, yellow, orange and red mean in Argentina's SMN weather alerts, how to read an alert and what to do at each level.
• How to read tidesWhat high tide, low tide, tidal range and spring tides are, how wind and pressure matter, and why estimated tides are not the official ones.
• Zonda wind: what it is and what to doWhat the zonda wind is, why it is warm and dry, which provinces it blows in, when it is most common and what precautions to take.
• Sudestada: what it is and how it affects youWhat a sudestada is, why the Río de la Plata rises, which areas it affects, how long it lasts and what precautions to take.
• UV index: what it means and how to protect yourselfWhat the UV index is, what each level means (low, moderate, high, very high and extreme), when it is strongest and how to protect your skin.
• How to read a 16-day forecastWhat rain probability, millimeters, gusts and reliable, indicative and trend days mean in a 16-day weather forecast.
• Feels-like temperature: what it is and how to read itWhat the feels-like temperature is, how wind, humidity and sun affect it, and why it can feel colder or hotter than the actual temperature.
• Humidity and dew point: how to read themWhat relative humidity and dew point are, how to tell if it will feel muggy, and why fog, dew and frost form.
• How to read the rain radarWhat the rain radar shows, what the colors mean, how to use movement to tell whether rain is coming soon and what its limits are.

General, educational information: it does not replace professional advice or official warnings.