Winter storms are a familiar part of life in Boston, where heavy snow, freezing temperatures, strong winds, ice, and rapidly changing conditions can disrupt transportation and everyday routines. A major storm can do more than make roads difficult to navigate. It can create serious health risks, particularly for older adults, people with heart or lung conditions, individuals who rely on daily medications, people living alone, and anyone who loses heat or electricity during prolonged severe weather. Boston's cold-weather guidance emphasizes that extreme cold can contribute to frostbite and hypothermia and can worsen certain chronic medical conditions.

Preparing for a storm therefore means thinking beyond food, flashlights, and batteries. Residents should consider how they will access medications, respond to a medical emergency, remain safely warm, and recognize symptoms that require immediate attention. Checking reliable weather information before conditions deteriorate is also an important part of deciding when to stay home and when travel or outdoor activity is unsafe. For residents monitoring conditions, the Boston winter storm warning today can be one source of storm information to review alongside official emergency alerts and forecasts.

Snow Shoveling and the Risk of Heart Attack

One of the most underestimated health dangers during a Boston snowstorm is the physical strain involved in clearing snow. Shoveling can be strenuous exercise, especially when snow is wet and heavy. The combination of cold temperatures, physical exertion, and the sudden workload placed on the cardiovascular system can be dangerous for people with underlying heart disease or other cardiovascular risk factors. Massachusetts emergency guidance specifically warns that overexertion while shoveling can trigger a heart attack.

Cold air itself can place additional stress on the cardiovascular system. When the body is exposed to cold, blood vessels constrict to conserve heat. Physical exertion then increases the heart's demand for oxygen. Moving large amounts of snow can quickly become intense exercise, even for someone who considers themselves reasonably active.

People with known heart disease, high blood pressure, diabetes, a history of stroke, or other cardiovascular risk factors should be particularly cautious. Older adults may also be more vulnerable. A person who rarely exercises but suddenly spends an hour lifting heavy snow can place substantially more stress on the heart than expected.

Warning signs of a heart attack can include pressure, squeezing, fullness, or pain in the chest; discomfort spreading to the arm, shoulder, back, neck, jaw, or upper abdomen; shortness of breath; unusual sweating; nausea; or sudden weakness. Symptoms can vary, particularly in women and older adults. If a heart attack is suspected, do not attempt to drive yourself through hazardous storm conditions. Call 911 and follow the emergency operator's instructions.

For those who do shovel, preparation matters. Warm up gradually, dress in layers, use a smaller shovel, take frequent breaks, and avoid trying to clear enormous amounts of snow in one continuous effort. Boston's cold-weather guidance recommends taking breaks and avoiding excessive physical strain during extreme cold.

There is also no requirement to prove toughness during a storm. Asking a neighbor, family member, building manager, or professional snow-removal service for help can be a much safer choice than attempting a physically demanding job while conditions are dangerous.

Recognizing Hypothermia Before It Becomes an Emergency

Hypothermia occurs when the body loses heat faster than it can produce it. Many people associate it with being outdoors for hours, but it can also occur indoors if a home or apartment becomes dangerously cold after a heating failure or prolonged power outage. Boston's public health guidance notes that hypothermia can occur both indoors and outdoors.

Early symptoms may include shivering, fatigue, cold or pale skin, and difficulty concentrating. As body temperature falls further, symptoms can progress to confusion, memory problems, drowsiness, slurred speech, impaired coordination, and severe exhaustion. A person with advanced hypothermia may stop shivering, become increasingly confused, or lose consciousness.

These symptoms should never be dismissed as simply being tired after a storm. Confusion or unusual behavior in someone who has been exposed to cold can be an important warning sign. Older adults, young children, people without adequate heating, and individuals with certain chronic conditions may face greater risks during extreme cold.

If hypothermia is suspected, move the person to a warm environment and remove wet clothing if possible. Wrap the person in dry blankets or additional clothing and protect the head and neck. Handle someone with severe hypothermia gently. Do not use alcohol as a warming method, and do not aggressively massage cold arms or legs. Avoid placing a severely hypothermic person directly into a very hot bath or shower because rapid heating can create additional complications. Boston guidance recommends emergency medical assistance when hypothermia is suspected.

If the person is severely confused, difficult to wake, unconscious, or showing other serious symptoms, call 911 immediately. Medical professionals can determine the severity of the condition and provide appropriate rewarming and supportive treatment.

Frostbite: What It Looks Like and What to Do

Frostbite is an injury caused by freezing of skin and underlying tissues. Fingers, toes, ears, cheeks, chin, and the tip of the nose are particularly vulnerable. In extreme cold, exposed skin can become injured surprisingly quickly, especially when wind increases heat loss. Boston's cold-weather information warns that frostbite can develop rapidly in extreme conditions.

Early frostbite may cause numbness, tingling, burning, or unusual sensations. The affected skin can later appear pale, white, grayish, or waxy. As the injury progresses, the area may become hard or lose sensation entirely. Blisters and deeper tissue damage can develop after rewarming.

The first step is to get out of the cold. Remove wet clothing and jewelry near the affected area if doing so is safe, because swelling may occur. If medical care is readily available, particularly for significant or deep frostbite, seek professional evaluation.

Do not rub, massage, scrape, or vigorously manipulate frostbitten tissue. Do not place the affected area directly against a radiator, heating pad, fireplace, or other very hot surface because numb tissue can burn easily. If immediate medical care is not available and refreezing can be avoided, controlled rewarming with warm, not hot, water may be appropriate. Medical professionals can provide more specific instructions depending on the injury.

Severe frostbite, extensive blistering, persistent numbness, skin discoloration, or suspected tissue damage warrants prompt medical attention. Rewarming can be painful, and significant frostbite may require specialized treatment.

Carbon Monoxide: A Hidden Winter Storm Danger

Carbon monoxide, or CO, is among the most serious storm-related hazards because it is colorless and odorless. People cannot reliably detect it without a working carbon monoxide alarm. Massachusetts health officials identify portable generators, blocked vents, furnaces, gas and wood-burning appliances, vehicle exhaust, and improperly used heating or cooking equipment as potential sources.

The risk can increase dramatically after a power outage because people may improvise with generators, grills, gas ovens, portable heaters, or other fuel-burning equipment. A device that seems useful for producing heat or electricity can become deadly if it is used inside a home, basement, garage, or other enclosed space.

Generators must remain outdoors and well away from doors, windows, and ventilation openings. Massachusetts guidance recommends installing working carbon monoxide alarms and following the manufacturer's instructions. A generator should never be operated inside a garage, even if the garage door is open.

Snow can create another danger by blocking exhaust vents. A direct-vent furnace, dryer vent, or other exhaust opening can become covered by drifting snow. Boston specifically advises residents to clear snow from direct-vent gas furnace exhaust systems after storms.

Vehicle exhaust pipes are another concern. If snow covers a tailpipe, carbon monoxide can accumulate inside a running vehicle. Massachusetts advises clearing snow from around the exhaust pipe before starting a vehicle.

Symptoms of carbon monoxide poisoning can include headache, dizziness, weakness, nausea or vomiting, confusion, and difficulty thinking. Severe exposure can cause loss of consciousness and death. If multiple people in a home suddenly develop similar symptoms, especially without a fever, CO poisoning should be considered.

If a carbon monoxide alarm sounds or CO poisoning is suspected, get everyone outside into fresh air immediately and call 911. Do not remain indoors trying to identify the source. Emergency responders can evaluate the situation and determine whether it is safe to return.

Seasonal Affective Disorder During Prolonged Storms

Winter storms can affect mental health as well as physical health. A single snow day is unlikely to cause a mental health disorder, but repeated storms, prolonged periods indoors, reduced daylight, canceled plans, transportation disruptions, and social isolation can be difficult for some people. Boston residents who already experience depression or seasonal mood changes may notice symptoms becoming more pronounced during extended periods of winter weather.

Seasonal affective disorder, commonly called SAD, is a form of depression associated with seasonal changes. Winter-pattern SAD generally begins in late fall or early winter and improves during spring and summer. Symptoms can include persistent sadness, loss of interest, low energy, changes in sleep, changes in appetite, difficulty concentrating, and withdrawal from normal activities.

It is important to distinguish temporary frustration or boredom during a storm from symptoms that persist or significantly interfere with daily life. NIMH recommends speaking with a health care provider when symptoms are worsening or interfering with normal functioning. Treatments for winter-pattern SAD can include light therapy, psychotherapy, medication, and other approaches selected with a health professional.

During a prolonged storm, maintaining a routine can help. Keep regular sleep and meal times, stay connected with friends and family through phone or video calls, remain physically active indoors when safe, and take advantage of natural daylight when conditions permit. Once roads and sidewalks are safe, spending some time outdoors during daylight can also be beneficial for general well-being.

Anyone experiencing severe depression, thoughts of self-harm, or an inability to safely care for themselves should seek urgent professional help rather than waiting for the storm to end.

Pharmacy Access Can Become a Health Emergency

A winter storm can turn a routine prescription refill into a serious problem. Snow emergencies, public transportation disruptions, unsafe sidewalks, road closures, business closures, and reduced pharmacy hours can all interfere with medication access. The risk is particularly important for people who depend on medications for heart disease, diabetes, asthma, seizure disorders, blood pressure, mental health conditions, or other chronic illnesses.

Boston's emergency-planning guidance recommends that residents with medical needs prepare for situations in which they cannot leave home and keep extra medications in their emergency supplies when appropriate. People who rely on medical equipment or ongoing health services should make plans with their providers before severe weather occurs.

Do not wait until a storm is approaching to discover that a prescription has no remaining refills. During winter, ask your pharmacist about refill timing, emergency supplies, delivery options, medication storage, and what to do if the pharmacy becomes inaccessible. If a medication requires refrigeration, ask the pharmacist or prescribing clinician what to do during an extended power outage. Boston has specifically advised residents with refrigerated medications to consult their pharmacist about proper storage during prolonged outages.

People who use insulin, injectable medications, oxygen equipment, CPAP machines, mobility equipment, or other essential medical supplies should have a storm plan tailored to their needs. Keep medication lists, prescribing information, allergies, medical conditions, insurance information, and important phone numbers somewhere accessible. A trusted family member or neighbor can also be given a copy of essential information if appropriate.

If a medication problem becomes urgent, contact your pharmacist, prescribing clinician, or an appropriate medical service rather than simply skipping doses. For life-threatening symptoms or emergencies, call 911.

How Boston Hospitals Prepare for Winter Storm Emergencies

Hospitals have to prepare for two problems at the same time during a major winter storm: an increase in patients and the possibility that employees, supplies, ambulances, or essential services may have difficulty reaching the facility. Emergency departments can see patients with falls, fractures, cardiac symptoms, respiratory problems, hypothermia, frostbite, carbon monoxide poisoning, and injuries related to transportation or storm cleanup.

Hospital emergency preparedness therefore involves much more than keeping emergency rooms open. Facilities must maintain critical electrical systems, heating, oxygen and medical-gas supplies, communications, medication availability, staffing, food and water, security, transportation arrangements, and contingency plans for infrastructure disruptions.

Boston's emergency-management guidance encourages residents with medical treatments, home health care, or electricity-dependent medical equipment to make plans with their providers before a storm. That preparation can reduce unnecessary emergency travel and help medical teams focus on people who genuinely need immediate care.

Residents should also understand the difference between an emergency department problem and a situation that can safely be handled through a primary-care clinician, pharmacist, telehealth service, or urgent-care provider. During severe weather, unnecessary travel creates risks for patients and emergency personnel alike. However, storm conditions should never stop someone from seeking emergency care when serious symptoms are present.

Chest pain, severe difficulty breathing, signs of stroke, severe allergic reactions, loss of consciousness, serious injuries, severe hypothermia, suspected carbon monoxide poisoning, or other life-threatening symptoms require emergency medical attention. If roads are dangerous, calling 911 is safer than attempting to drive yourself.

People Who Need Extra Protection During Boston Storms

Although anyone can become sick or injured during a winter storm, some people face substantially higher risks. Older adults may have more difficulty maintaining body temperature and may have mobility limitations. Young children lose body heat more quickly than adults. People with heart disease, asthma, COPD, diabetes, poor circulation, or other chronic conditions may be more vulnerable to extreme cold. People who depend on electricity for medical equipment face additional risks during outages.

People living alone should consider arranging check-ins before a major storm. A simple phone call from a neighbor or family member can identify a heating problem, medication shortage, fall, or other emergency before it becomes much more serious.

Boston's emergency-planning guidance also recommends developing support networks for seniors and people with disabilities, including plans for transportation and access to medications and medical equipment.

Preparing for the Next Boston Winter Storm

The safest approach to winter health is preparation before the first flakes begin falling. Keep a supply of essential medications, basic first-aid materials, warm clothing, blankets, food, drinking water, flashlights, batteries, and phone charging equipment. Test smoke and carbon monoxide alarms regularly. If you use a generator, understand its safety requirements before an outage occurs rather than learning during an emergency.

Review your home's heating system before winter and know where heating equipment exhaust vents are located so they can be checked after heavy snowfall. If you live in an apartment or condominium, know how to report a heating failure and understand whom to contact outside normal business hours.

Keep emergency contact information easily accessible. Know which pharmacy you normally use and whether it offers delivery or emergency refill services. If you have a chronic medical condition, discuss storm planning with your health care provider before the next major weather event.

Most importantly, respect the limits imposed by severe weather. You do not have to shovel every inch of snow immediately, travel during the height of a storm, or attempt to repair heating equipment yourself. Staying indoors, asking for assistance, and waiting for safer conditions can prevent injuries that would otherwise place additional pressure on emergency services.

Final Thoughts

Boston winter storms can create a chain of health hazards: a person may overexert themselves while shoveling, become exposed to dangerous cold, lose access to medication, or unknowingly encounter carbon monoxide after a power outage. Mental health can also suffer when severe weather keeps people isolated for days.

Recognizing the warning signs early is one of the most valuable forms of storm preparation. Know the symptoms of heart attack, hypothermia, frostbite, and carbon monoxide poisoning. Have a plan for essential medications and medical equipment. Keep vulnerable relatives and neighbors in mind. And understand when a problem can wait for safer weather and when it requires immediate emergency assistance.

Winter weather is part of Boston's environment, but serious health consequences are not inevitable. With advance planning, safe heating practices, sensible limits on outdoor exertion, medication preparation, and timely medical attention, residents can significantly reduce the dangers associated with even a prolonged winter storm.