At least one road was closed and water flooded a number of low-lying highways as the National Weather Service issued a flood advisory for St. Lawrence County this morning.

The advisory included Potsdam, Massena, Canton and Ogdensburg through 11 a.m.

The Austin Ridge Road was closed due to flooded conditions.

Vehicles navigated through water covering a portion of the Norwood-Burnhams Corners Road early this morning, and at least one vehicle had to be towed after going through the stream.

The Potsdam-Madrid Road also had hazard markings where water was flowing across the highway.

The weather service flood advisory follows:

“At 5:06 a.m. EDT National Weather Service radar showed a nearly stationary band of moderate to heavy rainfall from Chasm Falls to Ogdensburg in northern New York. This band of heavy rainfall has produced radar estimates rates of 1 to 2 inches per hour.with storm total rainfall amounts of 3 to 5 inches. A storm spotter inPotsdam reported a 24 hour rainfall total of 3.16 inches and a mesonet site at Norwood has reported 5.60 inches.

“This heavy rainfall will cause minor low lying and field flooding.along with rapid rises on smaller streams and rivers through 11 a.m. this morning.

“Additional rainfall amounts of 1 to 2 inches are possible in the warned area through early this morning.

“Most flood deaths occur in automobiles. Never drive your vehicle into areas where the water covers the roadway. Flood waters are usually deeper than they appear. Just one foot of flowing water is powerful enough to sweep vehicles off the Road. When encountering flooded roads make the smart choice... turn around.don’t drown.

“A Flood Advisory means river or stream flows are elevated or ponding of water in urban or other areas is occurring or is imminent.