Central and southeastern MA are less likely to experience the worst of the weather, although some of the storms may cross over from the west late in the evening, forecasters wrote.
A High Rip Current risk is also in effect through Monday night for Atlantic, Cape May and Ocean counties in New Jersey.
Timing. Thunderstorms will begin their approach after 3 PM - perhaps a couple of hours after 3 PM. These damaging elements will be isolated events, not widespread.
Although a tornado or two across northern Virginia is possible the main threats will be severe ( 60 mph) straight-line winds and very heavy rains.
Check the Interactive Radar on NH1.com to track the storms as they move through the state.
A Flash Flood Watch is in effect until 9PM Sunday for Onondaga, Seneca, Southern Cayuga and Tompkins counties.
A Small Craft Advisory is also in effect through tonight. Overnight lows should be in the upper 60s and low 70s.
Skies will gradually clear toward the morning, but the chance of a scattered shower or thunderstorm will linger late into the day on Tuesday.
There is still a possibility of showers and thunderstorms Tuesday before clearing and becoming partly sunny with a high near 81. The new air mass behind the storms and the front is not much cooler than our current air mass. Temperatures are forecast to remain a few degrees above normal, but meteorologists say lower dewpoints should make for overall pleasant conditions with no precipitation expected.