Wind gusts are what to watch out for in a thunderstorm likely to hit Darien sometime between 5 p.m. and 1 a.m., the National Weather Service says.
While it’s possible that the thunderstorm could be severe, the likelihood is low, forecasters say.
According to WNBC-TV weather, showers may come as early as 2 p.m. And Sam Kantrow, a forecaster for WTNH-TV in New Haven, showers could hit Connecticut as early as noon, and the main storm could start around 3 p.m. He says a “severe threat is relatively low but worth watching.”
Nevertheless, the weather service has issued a “Hazardous Weather Outlook” for the New York metropolitan area and beyond, which says, in part (and their statements are always in capital letters — that isn’t for emphasis):
THERE IS A MARGINAL RISK FOR STRONG TO SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING. THE MAIN THREAT IS FROM DAMAGING WIND GUSTS.

National Weather service radar map for Thursday morning, July 30, 2015 shows one line of storms.
[And with wind gusts come possible tree limbs down and therefore possible disruption of electric service. Are you prepared? We have no idea how severe the threat is, but the Darien Health Department has some suggestions on preparing for power outages.]
Here’s the Darien-specific weather forecast from the weather service for today through Monday. Of course, it’s possible we won’t even get a storm: