# Severe weather and Zonda winds in Argentina

> Live situation record from CLSTR: https://clstr.news/situations/severe-weather-and-zonda-winds-in-argentina
> Updated: 2026-09-20T14:34:57.000Z. Sources: 94. Developments: 2.

Argentina has experienced significant meteorological instability characterized by widespread storms and the Zonda wind phenomenon. Initially, the National Meteorological Service issued orange alerts for heavy storms, hail, and wind gusts exceeding 100 km/h in regions including Chubut and the AMBA area. Concurrently, the Zonda wind brought high temperatures and extreme dryness to San Juan, increasing forest fire risks.

As the weather patterns progressed, the Zonda wind specifically impacted the provinces of San Juan and Mendoza. In San Juan, wind gusts prompted a yellow alert, leading the Liga Sanjuanina de Fútbol to suspend all scheduled matches for Sunday to ensure safety. In Mendoza, the wind affected the Greater Mendoza area, San Rafael, Malargüe, and the Uco Valley, with gusts forecasted between 40 and 45 km/h.

Recent developments show a cold front triggering widespread alerts across the country. The National Meteorological Service has issued warnings for heavy storms, hail, and wind gusts exceeding 100 km/h in Buenos Aires, Córdoba, and Santa Fe. In the Catamarca mountains, heavy snowfall of up to 70 centimeters threatens to isolate rural communities and disrupt international crossings. Additionally, the Zonda wind is expected to persist in San Juan, maintaining elevated fire risks.

## Claims

- The SMN issued a yellow alert for storms, including potential hail and strong gusts, in Chaco, Corrientes, and Formosa. (corroborated by 2 sources)
- The SMN issued a yellow alert for persistent snowfall in Catamarca, anticipating accumulations between 30 and 70 centimeters. (single source)
- The SMN issued alerts for intense rain and snow in Santa Cruz, with snow accumulations expected up to 20 centimeters. (single source)
- A yellow alert was issued for strong winds in Neuquén, with gusts potentially exceeding 90 km/h. (single source)
- Chubut is under yellow alerts for both storms and snowfall. (single source)
- Mendoza is under alerts for snow in the mountains and Zonda winds in lower areas. (single source)
- A yellow alert for storms was issued for the Necochea and Quequén region. (single source)
- In Chaco, Pampa Almirón recorded the highest rainfall at 41 millimeters. (single source)

## Timeline

### 2026-09-20: Zonda winds impact San Juan and Mendoza provinces

Strong Zonda winds in Argentina have triggered weather alerts in Mendoza and forced the suspension of all San Juan provincial football matches for safety.

3 sources. https://clstr.news/cluster/zonda-winds-impact-san-juan-and-mendoza-provinces

### 2026-09-17: Severe weather alerts issued across Argentina and Dominican Republic

Severe weather alerts are active in Argentina and the Dominican Republic, featuring heavy storms, high winds, and snow, while Madrid expects stable, warm conditions.

92 sources. https://clstr.news/cluster/severe-weather-alerts-issued-in-chile-and-argentina

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Cite as: Severe weather and Zonda winds in Argentina. CLSTR, https://clstr.news/situations/severe-weather-and-zonda-winds-in-argentina