Prepare for Tropical Storm Henri - August 21-23, 2021

henri wind speeds

Tropical Storm Henri, which is expected to develop into Hurricane Henri, is predicted to impact Massachusetts beginning on Saturday night (August 21, 2021) through Monday, August 23, 2021. Get the lastest weather updates with the National Hurricane Center.

  • If your power goes out, use this link to check the National Grid outage map or call (800) 465-1212 to report an outage
  • If there are downed power lines, dial 9-1-1
  • If a tree limb falls in the street, call the Police Department at (978) 388-1212
  • If your power goes out and you're using a portable generator, make sure the exhaust isn't near windows or doors, or in your garage
  • Make sure your smoke detectors and carbon monoxide detectors are working and have good batteries

Governor Baker encourages residents to postpone unnecessary travel, especially if those trips are to Cape Cod or the Islands this weekend. 

From Tropical Storm Henri is projected to become a hurricane and significantly impact much of Central and Eastern Massachusetts, including Cape Cod and the Islands, and the South Coast. Hurricane force winds and substantial storm surges in coastal communities are expected. Additionally, the majority of Massachusetts is projected to receive a significant amount of rain, particularly from Greater Boston to Worcester County. All residents are advised to begin storm preparations today, and to pay close attention to local weather reports to monitor the track of the storm.

Read more from Governor Baker's press release, including tips on storm safety.

Please be prepared for high winds, potential flooding and possible power outages. Here are some great preparedness tips from MIIA.

  • Roofs - Inspect your roofs for damage. Determine if additional fasteners or strapping is necessary to secure your roofs.
  • Drains & Gutters - Clear drains and gutters to allow for water to drain away from your buildings.
  • Rooftop Systems - Ensure that rooftop ventilation and air conditioning units are properly secured.
  • Air Conditioners - Ensure window air conditioning units are properly secured or brought inside.
  • Trees – If possible, trim back tree limbs and shrubs near buildings.
  • Window Protection - If tree limbs or shrubs cannot be trimmed in time, consider boarding windows with 5/8” marine plywood in high exposure areas.
  • Potential Airborne Items - Move trash cans, tables, chairs, barbeque grills, etc., inside.
  • Recreation Equipment - Secure outdoor recreation and school equipment such as soccer nets, playground equipment/toys, bleachers, portable basketball hoops, etc.
  • Storm Drains - Clear storm water drains of debris in areas where flooding is likely.
  • Vehicles - Determine how and where to store your non-emergency vehicles
  • Fuels – Obtain sufficient fuel for emergency response are fueled as some gas stations will be closed during power outages.
  • Generators - Test ALL generators to ensure they remain operational.
  • Basement Storage - If basements are prone to water penetration, move contents to higher ground and prepare sump pumps.