Watches Issued: Severe Thunderstorms Threaten Northeast and Ohio Valley Tuesday

Brian Donegan
Published: August 22, 2017

Severe thunderstorms, with damaging wind gusts, will continue to blast through the Northeast and parts of the Ohio Valley into Tuesday evening. Heavy rainfall could also lead to localized flash flooding, and a tornado or two cannot be completely ruled out.

(MORE: Tornado Central)

NOAA's Storm Prediction Center has issued the following severe weather watches:

  • A severe thunderstorm watch is in effect until 12 a.m. EDT for parts of eastern New York and western New England. This watch area includes Albany, New York, Springfield, Massachusetts, and Concord, New Hampshire.
  • A severe thunderstorm watch is in effect until 12 a.m. EDT for parts of eastern Pennsylvania, north New Jersey and southeast New York. This watch area includes Harrisburg, Pennsylvania, and Allentown, Pennsylvania.

Current Radar, Watches and Warnings

The storms have downed trees from Pennsylvania and New York to northern New England as of Tuesday evening. In Portersville, Pennsylvania, a tree fell on a vehicle and injured one person.

Tuesday evening a roof was blown off a building and small barn near Vergennes, Vermont.

(MORE: View National Interactive Radar Map | Difference Between a Watch and a Warning)

Below is our latest forecast thinking on the timing and magnitude of the severe threats through Tuesday.


  • Forecast: Severe thunderstorms are possible across much of upstate New York and Vermont southwestward into central and western Pennsylvania and the Ohio Valley, as well as parts of the mid-Mississippi Valley, through this evening. Showers and storms could reach portions of the heavily-populated Interstate 95 Northeast corridor later Tuesday evening or overnight, but the risk for severe weather will be minimal as the storms weaken after sunset.
  • Threats: Damaging wind gusts are the primary threat, though large hail and an isolated tornado can't be ruled out. Flash flooding is also possible, especially where storms stall or move slowly over the same areas for a period of an hour or more.
  • Cities: Buffalo, New York | Syracuse, New York | Burlington, VermontPittsburgh | Cleveland | Cincinnati | Louisville

Tuesday's Thunderstorm Forecast

Recap: Flooding Strikes the Midwest

Three rounds of heavy rain brought flash flooding to portions of eastern Kansas and western Missouri late Monday into early Tuesday. A flash flood emergency was issued for the Kansas City metro area where numerous water rescues and evacuations took place.

Flash flooding was reported near Sioux Falls, South Dakota, Monday afternoon as up to 7 inches of rain fell in the area.

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