Forecasters are warning of poor air quality, damaging thunderstorms and an isolated tornado.
Massachusetts residents are being urged to stay weather aware Saturday as forecasters warn that a combination of wildfire smoke, severe thunderstorms and strong wind gusts could affect much of the state throughout the afternoon and evening.
Meteorologists have issued a weather alert covering much of the day as an approaching storm system is expected to bring deteriorating conditions after a brief return of smoky skies caused by Canadian wildfires. While the unsettled weather is expected to move out overnight, officials say the hours leading into Saturday evening could present several hazards, particularly for anyone with outdoor plans.
Conditions are expected to improve significantly by Sunday, bringing sunshine, lower humidity and much cleaner air across the region.
Wildfire smoke is expected to return temporarily
Air quality is forecast to worsen Saturday as shifting southwest winds carry smoke from Canadian wildfires back across New England.
The smoky conditions are expected to create hazy skies and reduce air quality for several hours before gradually improving overnight. Air Quality Alerts remain in effect in areas where concentrations of fine particulate matter may reach levels considered unhealthy, particularly for sensitive groups.
People with asthma, heart disease or other respiratory conditions may benefit from limiting prolonged outdoor activity while smoke lingers.
Severe thunderstorms could develop during the afternoon
The greatest chance for showers and thunderstorms is expected to begin around 2 p.m., with storm activity becoming more widespread during the evening.
Forecasters warn that some storms could become severe, producing heavy rainfall, frequent lightning and powerful wind gusts capable of causing damage.
Localized rainfall totals exceeding one inch are possible in stronger storms, raising concerns about brief flooding in areas with poor drainage.
Anyone attending outdoor events is encouraged to closely monitor changing weather conditions throughout the day.
An isolated tornado cannot be ruled out
Although the overall tornado risk remains limited, meteorologists say atmospheric conditions may support the development of an isolated tornado.
The highest potential is expected across western and central Massachusetts, where stronger storms could develop during the afternoon and evening.
Residents in those areas should remain alert for weather warnings and have multiple ways to receive emergency information if conditions rapidly change.
Strong winds may affect travel and outdoor activities
Even outside of thunderstorms, gusty southwest winds are expected to impact much of Massachusetts.
Wind gusts between 25 and 40 mph could make driving more difficult for high profile vehicles while also creating challenges for outdoor events, unsecured objects and recreational activities.
Officials recommend securing lightweight outdoor furniture and exercising caution while traveling in areas experiencing stronger gusts.
Sunday’s forecast brings welcome relief
The unsettled weather is expected to move out by late Saturday night, allowing conditions to improve considerably heading into Sunday.
Forecasters expect mostly sunny skies, lower humidity, cleaner air and a refreshing breeze, creating a much more comfortable end to the weekend.
With wildfire smoke moving away from the region and storm chances diminishing, Sunday is expected to offer far more favorable conditions for outdoor activities across Massachusetts.
Saturday’s forecast serves as a reminder that summer weather in New England can change rapidly. Between deteriorating air quality, the threat of severe thunderstorms and the possibility of isolated tornadoes, residents are encouraged to stay informed throughout the day and adjust outdoor plans if necessary. By Sunday, however, calmer weather is expected to return, bringing a welcome break after a day of changing conditions.