As remnants of a tropical storm soaked much of Maine and a hurricane threatened to send more rain this weekend, state officials and the American Red Cross urged residents to take the severe weather seriously and prepare for the worst.

“We don’t think of Maine as being at high risk for hurricanes,” said Art Cleaves, director of the Maine Emergency Management Agency. “But we don’t need to get the full force of the storm to get wind damage, storm surges, inland flooding and even tornadoes.”

By Friday, a mud slide unleashed by heavy rain closed state Route 161 in St. Francis in northern Maine, and a 3-inch downpour forced organizers of the Maine Open at Portland’s Riverside Golf Course to scrub Friday’s scheduled final round.

Route 161 was reopened Friday afternoon, but other roads were reported flooded in Fort Kent, Eagle Lake and other towns in Aroostook County, said Darren Woods, deputy director of the county’s Emergency Management Agency.

The National Weather Service posted a flood warning for smaller creeks and streams in northern Somerset and Piscataquis counties, and northwestern Aroostook County. A flood watch remained in effect for all of southern and western Maine.

Remnants of Tropical Storm Bonnie moved up the East Coast toward Maine on Friday, spreading tropical-like air into the region along with heavy showers.

Both Portland and Augusta received 2.6 inches of rain, and other southern sections and the western highlands received more than 2 inches, the weather service said.

The weather service also said heavy rain expected in parts of Washington and Hancock counties created a potential of flooding in low-lying areas such as ditches and underpasses.

The flood watch was to remain in effect as Bonnie’s remnants passed through. That could be followed by a break, with warm, dry weather on Saturday.

Then Hurricane Charley, which headed for Florida’s west coast Friday and caused a mass evacuation from that region, heads north, bringing a potential of more heavy rain and high winds to Maine.

Andrew Mendes, Maine preparedness director for the American Red Cross, said Mainers should pay close attention to weather forecasts and stay tuned for any special instructions that may be issued.

“Mainers should be prepared for any emergency, and in hurricane season we need to take that threat seriously,” said Mendes. Officials said Maine has sustained serious impacts of hurricanes and tropical storms in the not-too-distant past.

Aug. 19 marks the 13th anniversary of Hurricane Bob, which caused widespread power outages, flooding and toppled trees in Maine. Also in 1991, the state was hit with the “Perfect Storm,” which resulted from a tropical system. It caused $2.5 million in coastal damage and hit hard at the lobster-fishing fleet.

A coastal storm pulling much of its tropical moisture from circulation around Hurricane Lily in 1996 flooded parts of southern Maine with up to 19 inches of rain, causing one death and $9 million in damage.

In 1999, Hurricane Floyd’s heavy rains caused $1.2 million in road and public property damage in Maine, MEMA said.