The National Meteorological Service (SMN) via Conagua Clima issued a general weather forecast at 06:00 hours on September 1, 2026, for Mexico. ^[1] The passage of Tropical Wave Number 35 over the western Caribbean and the Yucatán Peninsula is expected to bring heavy rainfall and thunderstorms to the region starting Tuesday, September 1, 2026. ^[2] Heavy rainfall of 50 to 75 mm is forecast for southern Baja California, eastern and southern Sonora, central and southern Sinaloa, western Chihuahua, western Durango, western Zacatecas, central and eastern Nayarit, northwestern and western Jalisco, southwestern and western Guanajuato, central, southwestern, southern, and southeastern Hidalgo, northern and western State of Mexico, and eastern Guerrero. ^[3] The combined circulation of Hurricane Marie and the tropical waves will reinforce humidity in western states, generating very heavy rainfall in Zacatecas, Jalisco, Guanajuato, Hidalgo, State of Mexico, Guerrero, and Oaxaca. ^[4] The Mexican monsoon and atmospheric instability are expected to maintain conditions for very heavy rainfall in Baja California Sur, Sonora, Chihuahua, Durango, Sinaloa, and Nayarit, with isolated rain in Baja California. ^[5] According to forecasts from Mexico's National Water Commission (Conagua) and the National Hurricane Center (NHC), the interaction of Tropical Wave 35 with regional atmospheric instability will trigger moderate-to-heavy showers across Yucatán, Quintana Roo, and Campeche. ^[6] Tropical Storm Edouard is tracking west-northwest toward the Texas and Louisiana coasts with maximum sustained winds near 65 km/h (40 mph). ^[7] Tropical Wave 35 will generate localized heavy downpours accompanied by electrical activity and gusty winds across the Yucatán Peninsula throughout Tuesday and Wednesday. ^[8]