Overview

• Conagua forecasts the high-pressure dome over Sonora will weaken by Thursday, ending the >45 °C heat wave and allowing more widespread rain by Friday.
• The SMN has issued yellow advisories today for 50–75 mm downpours with hail, lightning and gusty winds in Durango, Sinaloa, Nayarit, Jalisco, Colima, Michoacán, Guerrero, Oaxaca, Chiapas and Veracruz.
• Michoacán, Guerrero and Oaxaca face forecasts of 75–150 mm of rain on July 24–25, prompting flood and landslide warnings in mountainous zones.
• Argentina’s SMN has yellow alerts in northern Santa Fe, Corrientes and Entre Ríos for persistent heavy rain and in La Pampa, Río Negro, Neuquén and southern Buenos Aires province for extreme cold.
• A polar front expected this weekend will plunge temperatures below seasonal norms in Buenos Aires and central provinces with isolated early showers possible Friday.