Beryl, once a Category 5 hurricane on the Saffir-Simpson hurricane wind scale, is only a post-tropical cyclone now, but it is still bringing drenching rains to portions of the eastern U.S. and will continue to do so for the next few days. What’s’ left of the dissipating system is over centered over southern Illinois.
According to the National Weather Service’s Weather Prediction Center (WPC), heavy rainfall will result in scattered flash flooding through tonight from portions of the Lower Missouri and Mid Mississippi Valleys into the Great Lakes. The rainfall and flash flood risk will move into portions of northern New York and northern New England on Wednesday.
While most of Beryl’s winds are gone, the WPC cautions that several tornadoes are possible through tonight across the lower Ohio Valley, including parts of Kentucky, northern Tennessee, southern Illinois, southern Indiana, and Ohio.
“Use caution after Beryl passes,” advises the WPC. “Deadly hazards remain including downed power lines and flooded areas. Ensure generators are properly ventilated to avoid carbon monoxide poisoning. Exercise caution when using chainsaws and power tools, and drink plenty of water to avoid heat exhaustion.”
The remnants of Beryl and another system will produce more soaking rains in the east. As a positive-tilt upper-level through very slowly shifts eastward across the Great Lakes, adjacent Canada and into the Mid-Mississippi Valley, a weakening upper-level low turns northwest off the western Atlantic and makes a run for the Mid Atlantic coast. With an abundance of moisture available, heavy rain showers are likely, with the heaviest rain expected across northern New England and the Mid Atlantic region. While Parts of New Jersey and Pennsylvania could see more than 2″ of rain, more than 4″ of rain is possible in portions of Virginia, Maryland, North Carolina, New York, Vermont, New Hampshire, and Maine.
