The Servicio Meteorológico Nacional (SMN) has issued a weather alert for heavy rain, hail, and freezing temperatures in the Buenos Aires metropolitan area [1].
The alert signals a period of extreme instability that could disrupt transport and infrastructure across the AMBA region. The combination of freezing temperatures and intense precipitation creates hazardous conditions for residents and commuters.
According to the SMN, the alert covers a duration of up to 48 hours [1]. The agency said a polar air mass is moving into the region, bringing temperatures below 0 °C [1]. This cold front is interacting with atmospheric instability to generate severe thunderstorms and hail [1].
Local authorities are monitoring the situation as the polar air mass creates the conditions necessary for intense rain and freezing temperatures [1]. The SMN said it has not specified the exact start time of the event but emphasizes the potential for significant accumulation of hail and rain over the two-day window [1].
Residents in the metropolitan area are advised to prepare for the sudden drop in temperature and the possibility of flash flooding caused by the heavy precipitation [1]. The agency continues to track the movement of the polar air mass to provide updates on the storm's trajectory and intensity [1].
“The alert covers a duration of up to 48 hours.”
The convergence of a polar air mass with high atmospheric instability often leads to volatile weather patterns in the AMBA region. When temperatures drop below freezing during heavy precipitation, the risk of infrastructure damage from hail and icing increases, potentially paralyzing urban transit in one of Argentina's most densely populated areas.
