Deadly Sonora heat wave expected to intensify over next 3 days
Temperatures are expected to exceed 40 degrees Celsius (104 degrees Fahrenheit) for the next three days in the northwestern border state of Sonora, with highs reaching 47 C in municipalities in the northwest and central region, according to Mexico’s National Meteorological Service (SMN). The dangerous heat wave, which has lasted more than six weeks, has already caused 22 deaths and sickened 350 as of Tuesday morning, reports the Sonora state Health Ministry. Temperaturas máximas registradas la tarde de ayer en estaciones de #Sonora El valor mas alto que se presentó fue de 46.9°C en El Pinacate. Fuentes: @ConaguaOCSonora , @CESAVE_Sonora . pic.twitter.com/XPq10IkZJH — Gilberto Lagarda Vas (@gilbertolagarda) August 18, 2026 The cities of San Luis Río Colorado, Caborca and Hermosillo could experience highs of between 43 C and 47 C. In the state capital of Hermosillo, the relative humidity is around 45%, while the ultraviolet radiation index is in the “extreme” category, rangin...