Hurricane Grace pummeled Mexico with torrential rain and howling winds on Saturday, causing severe flooding and knocking down power lines and trees after becoming one of the most powerful storms in years to hit the country’s Gulf coast.

Grace was whipping up maximum sustained winds of 125 miles per hour (201 km per hour), a Category 3 hurricane on the five-step Saffir-Simpson scale when it slammed into the coast near the resort of Tecolutla in Veracruz state in the early morning.

It weakened quickly as it moved across Mexico’s mountainous interior and became a tropical storm by mid-morning.

Civil protection authorities in Veracruz said Grace caused power cuts and brought down trees. Video footage and photos posted on social media showed damage to buildings, but there were no immediate reports of casualties.

Local television showed severe flooding in Veracruz state capital Xalapa, with coffins from a local business floating down a waterlogged street. Local authorities also said the nearby River Actopan burst its banks, shutting down a local highway.

State Governor Cuitlahuac Garcia said that several rivers in Veracruz would flood in the next few hours, and urged the local population to take cover. “We repeat: withdraw to high ground and the municipal hostels,” Garcia said in a statement.

Television footage also showed flooding in Ciudad Madero in the southern reaches of the state of Tamaulipas near the border of Veracruz. Mexican state oil firm Petroleos Mexicanos’s (Pemex) Francisco Madero refinery is in Ciudad Madero.

Mexico City’s international airport said some flights were canceled due to the hurricane. National power utility the Comision Federal de Electricidad (CFE) reported 565,000 electricity users were affected by outages.

By 10 a.m. CDT (1500 GMT), Grace had weakened to a tropical storm, with top winds of 70 mph (110 kph). The center was about 25 miles (40 km) north-northeast of Mexico City, the Miami-based National Hurricane Center (NHC) said.

Before Grace hit land, President Andres Manuel Lopez Obrador urged people in the states of Veracruz, Puebla, San Luis Potosi, Tamaulipas, and Hidalgo to get to higher ground or shelters.

Many appear to have heeded the call.

Through Sunday, the NHC forecast Grace would dump 6 to 12 inches (15-30 cm) of rain over swaths of eastern and central Mexico, and up to 18 inches (45 cm) in some areas. The heavy rainfall will likely cause areas of flash and urban flooding, it said.

Veracruz and its waters are home to several oil installations, including Pemex’s port in Coatzacoalcos and its Lazaro Cardenas refinery in Minatitlan in the south.

Grace hit land well to the north of these cities.

Earlier in the week, Grace pounded Mexico’s Caribbean coast, downing trees and causing power outages for nearly 700,000 people, but without causing loss of life, authorities said.

It also doused Jamaica and Haiti, still reeling from a 7.2 magnitude earthquake, with torrential rain.