[4] It was anticipated that the floods would increase the risk of dengue and malaria in the following dry season due to the proliferation of mosquitoes.

[6] In January 2012, in several cities of Perú, (e.g. Piura, Tumbes, Lambayeque, Cusco, among others) were initially affected by intense rains.

[9][10] However, the state of emergency was finally declared until March 30, 2012, when the number of homeless rose to 100,000, a belated action that was frowned by the population.

Due to the Amazon River is fed by the southern region of Arequipa —born specifically on the slopes of Nevado Mismi, the Peruvian Andes is the area affected by rains.

[12] Marco Paredes, regional head of Senamhi, stated that erratic rains had begun after that the La Niña of 2011 will impact climate in the sierra.

[13] In the Punchana District in Iquitos, the flood reached the cemetery the Immaculate, which could cause water pollution from the bodies.