Overview
- The Servicio Meteorológico Nacional issued a yellow alert covering Mendoza, Neuquén, San Luis, Misiones, west Río Negro, La Pampa and northwest Chubut on Sunday 15 November, warning of isolated locally strong storms with heavy short‑period rain, frequent lightning and gusty winds.
- SMN says affected areas could see rainfall totals generally between 15–40 mm with localized exceedances and occasional hail, conditions that the agency defines as able to cause damage or interrupt activities.
- Earlier instability in the Buenos Aires metropolitan area produced overnight storms on 14 November but was forecast to ease during the morning with daytime improvement and highs near 27°C, reducing immediate risk there.
- Regional forecasts in northern Argentina and in Galicia, Spain show differing timing and hazards with Tucumán expected bursts of rain around 02:00–05:00 and again from mid‑afternoon and Galicia facing persistent overnight rain and gusts up to about 68 km/h.
- Officials advise practical steps to reduce risk: avoid travel if possible, secure loose objects, clear drains, stay indoors away from windows, and seek immediate shelter if outdoors because heavy downpours and lightning can quickly create hazardous local conditions.