Overview
- The Servicio Meteorológico Nacional issued orange and yellow alerts covering multiple provinces for the start of September, with the main bulletins released for Monday and carried into the morning of Tuesday.
- An orange alert covers Misiones and east Formosa with forecasts of intense storms, short‑period rainfall totals of 60–90 mm, hail, frequent lightning and gusts that may exceed 90 km/h.
- A yellow alert for Chubut warns of moderate to locally heavy snow with expected accumulations of 15–25 cm, and yellow wind alerts affect parts of northwest Argentina with sustained winds of 50–70 km/h and gusts near 100 km/h.
- Many central and eastern areas, including the City of Buenos Aires and Greater Buenos Aires, are forecast to be mild and mostly stable with low rain probabilities, while local services report isolated morning instability in places such as Santa Fe.
- Authorities advise staying indoors during storms, avoiding flooded roads, securing loose objects, preparing for travel delays in snow or high‑wind zones, and monitoring local forecasts for evolving timing and impacts.