Mysterious thunder rumbles over Lima, surprising residents

Unusual thunderclaps startled thousands of residents across Lima on Wednesday night, sparking surprise and speculation on social media. Many mistook the sounds for fireworks or explosions, with some even considering a seismic event due to the rarity of such phenomena in the Peruvian capital.

Although the thunder occurred during an atypical winter marked by unusually high temperatures and other meteorological anomalies, there is currently no direct evidence connecting it to the El Niño Costero climate pattern. Lima's climate, shaped by the Pacific Ocean and the Andes mountains, usually hinders the formation of thunderstorms over the city, making the occurrence of thunder a noteworthy event.

The current winter season in Lima has deviated significantly from the norm. Central coast sea temperatures have risen, contributing to an anomalous warming of the sea. Factors such as a warm oceanic Kelvin wave, a weakening of the South Pacific Anticyclone, and prevailing northerly winds have been cited as contributors to this unusual weather. For instance, on July 25, the Alexander Von Humboldt meteorological station in La Molina recorded a historic high of 29.4 degrees Celsius, over 10 degrees Celsius above the July average.

Despite these climatic deviations, a direct causal link between these anomalies and the thunder heard in Lima has not yet been confirmed by meteorological authorities.