# Heavy rainfall and flooding in Sinaloa

> Live situation record from CLSTR: https://clstr.news/situations/heavy-rainfall-and-flooding-in-sinaloa
> Updated: 2026-09-09T23:02:04.000Z. Sources: 3. Developments: 2.

Heavy rainfall across Sinaloa has caused localized flooding and significant increases in water reserves. In Guasave, intense storms led to accumulations of up to 115 mm in areas such as Palos Blancos, prompting the municipality to enter a state of permanent alert as drainage systems became saturated.

Following these events, precipitation in northern Sinaloa, including 136 mm in Villa de Ahome, has contributed to a recovery in the state’s dam system. According to the Comisión Nacional del Agua (Conagua), total storage capacity has reached approximately 43 percent, with specific reservoirs like the Huites and Gustavo Díaz Ordaz dams reporting capacities above 53 percent.

## Timeline

### 2026-09-09: Sinaloa rainfall boosts dam capacity to 43 percent

Heavy rains in northern Sinaloa, including 136mm in Villa de Ahome, have boosted the state's dam capacity to approximately 43 percent.

2 sources. https://clstr.news/cluster/sinaloa-rainfall-boosts-dam-capacity-to-43-percent

### 2026-09-05: Guasave faces flooding after heavy rainfall in Sinaloa

Heavy rains in Guasave, Sinaloa, have caused significant flooding, with rainfall reaching 115 mm in some areas. Local authorities remain on high alert to manage saturated drainage systems.

2 sources. https://clstr.news/cluster/guasave-faces-flooding-after-heavy-rainfall-in-sinaloa

---
Cite as: Heavy rainfall and flooding in Sinaloa. CLSTR, https://clstr.news/situations/heavy-rainfall-and-flooding-in-sinaloa