The National Weather Service in Buffalo has issued a severe thunderstorm watch for Chautauqua County, western Cattaraugus County and southwestern Erie County until 9:30 p.m. There is also a flash flood warning in effect for southern Chautauqua County until 12:30 a.m. Sunday and a flood warning for parts of Chautauqua and Cattaraugus counties until 2 a.m. Sunday. Severe thunderstorm warnings for the region have expired.
At 7:50 p.m., Doppler radar indicated heavy rain due to thunderstorms. Flooding is underway or expected to begin soon in the warned area. Between 0.25 and 1.5 inches of rain fell. Additional rainfall amounts of 0.5 to 1.5 inches are possible
in the warning zone.
Some places that will experience flash flooding include Jamestown, Lakewood, Falconer, Clymer, West Ellicott, Frewsburg, Findley Lake, Busti, Celoron, Mina, French Creek, Panama, Bemus Point, Ashville, Stow and Niobe.
Some places that will experience flooding include Jamestown, Allegany State Park, Lakewood, Falconer, Clymer, West Ellicott, Frewsburg, Long Point State Park, Findley
Lake, Chautauqua, Busti, New Albion, Gerry, Conewango, Ellington, Leon, Randolph, Napoli, Celoron and Mina.
IMPACTS… Flooding of rivers, streams, creeks and other low-lying, flood-prone locations is imminent or underway.
This includes the following highways: Interstate 90 between exits 61 and 57A,
Interstate 86 between exits 4 and 16.
Storms will continue to build east-northeastward in and across western and central New York this evening, with damaging wind gusts up to 70 MPH and isolated large hail up to 1.5 inches in diameter as the main hazards. Several series of storms could affect the region until late evening and early at night.
Chart by National Weather Service