However, meteorologists attribute the storm to the clash of the first warm winds, which are a product of the arrival of spring with cold fronts.
The legend is very popular in Argentina and Uruguay, especially around the Rio de la Plata area (including Buenos Aires and Montevideo) and the Argentinian province of Córdoba and the Cuyo region, west of Buenos Aires.
Climate data show that the storm is one of the first to form at the end of Southern winter, some 10 days before August 20 and September 20.
[citation needed] In popular belief, the Santa Rosa storm is one of the most violent of the year.
For the City of Buenos Aires (according to the Villa Ortúzar SMN Observatory), the storm has only appeared five days before or after the 30 August on sixteen occasions since 1861.