Deluge Alert: Heavy Rain and Thunderstorm Threat Looms Over the Region

A significant shift in our regional weather pattern is upon us, with a formidable system poised to unleash a torrent of heavy rain and the palpable threat of disruptive thunderstorms across the area. Residents are urged to prepare for rapidly changing conditions as we head into the evening hours and overnight.

Forecasters are tracking a robust low-pressure system that is drawing ample moisture from the Atlantic, setting the stage for widespread and persistent rainfall.

The primary concern with this deluge is the potential for localized urban and small stream flooding. Areas with poor drainage, including underpasses and low-lying roads, could quickly become inundated, making travel hazardous and even impassable. Drivers are advised to exercise extreme caution and remember the critical warning: "Turn around, don't drown."

Beyond the sheer volume of rain, the atmospheric conditions are ripe for the development of potent thunderstorms.

While widespread severe weather isn't the primary outlook, embedded storms within the broader rain shield could pack a punch. This means the risk of dangerous cloud-to-ground lightning, which poses a threat to anyone outdoors, as well as gusty winds strong enough to cause isolated power outages and tree limb damage.

Brief, intense downpours within these thunderstorms will only exacerbate the flooding risk.

The heaviest precipitation is anticipated to sweep through the region starting late this afternoon, intensifying through the evening, and gradually tapering off by early tomorrow morning. The precise timing and intensity may vary across different communities, but the general trend points to a challenging period of weather for many.

All of New England, particularly central and eastern Massachusetts, southern New Hampshire, and Rhode Island, should remain vigilant.

To navigate this weather event safely, it's crucial to take proactive steps. Secure any loose outdoor items that could become airborne in strong winds. If you live in a flood-prone area, ensure storm drains are clear and have a plan for protecting your property.

Most importantly, stay indoors during peak storm activity and avoid unnecessary travel. Keep your mobile devices charged and have an alternative light source readily available in case of power interruptions.

Our team of meteorologists will be continuously monitoring the radar and providing real-time updates as the system progresses.

Stay tuned to WCVB for the latest forecast, watches, and warnings to ensure you and your family remain safe throughout this significant weather event.