Winter storms are a familiar part of life in Portland, Maine, but the health risks they create can extend well beyond slippery sidewalks and difficult driving. Heavy snow, freezing temperatures, strong winds, power outages, blocked roads, and prolonged periods indoors can place additional stress on the heart, lungs, nervous system, and mental health. A major storm can also make it harder to reach a pharmacy, attend a routine medical appointment, or get emergency assistance quickly.

For Portland residents, preparation is therefore not simply about keeping a snow shovel and extra blankets at home. It is also about understanding which symptoms require immediate attention, knowing how to prevent cold-related injuries, using backup heating equipment safely, and planning ahead for prescription medications and medical needs. Maine health authorities identify hypothermia and frostbite as significant cold-related hazards, particularly for older adults, infants, people without adequate heat, outdoor workers, and people with certain chronic conditions.

Weather conditions can change rapidly during a coastal Maine storm. Before heading outside to clear a driveway or sidewalk, residents should check reliable weather information and understand whether conditions are expected to deteriorate. If you have a heart condition, check the Portland winter storm warning today before deciding whether to shovel — during an active warning, heavy wet snow combined with cold air can make strenuous outdoor work particularly hazardous.

Why Snow Shoveling Can Increase Heart Attack Risk

One of the most overlooked winter health hazards is snow removal. Shoveling may seem like an ordinary household chore, but moving heavy or wet snow can be vigorous physical exercise. The American Heart Association warns that snow shoveling can substantially increase cardiovascular workload and may contribute to heart attack or sudden cardiac arrest, particularly in people who are not accustomed to strenuous exercise. Cold temperatures add another challenge because exposure to cold causes blood vessels to constrict and can increase blood pressure.

The risk is especially important for people with known or suspected cardiovascular disease and for individuals with risk factors such as high blood pressure, diabetes, high cholesterol, smoking history, obesity, or a sedentary lifestyle. People who have previously experienced a heart attack or stroke, or who have undergone bypass surgery or coronary angioplasty, should discuss snow removal with their healthcare provider rather than assuming they can safely handle a large storm cleanup themselves.

Heavy, wet snow can be particularly demanding because each shovel load may weigh considerably more than the same volume of light powder. Repeated lifting, twisting, pushing, and throwing can rapidly raise heart rate and blood pressure. People may also hold their breath while lifting, increasing the strain associated with the effort.

If snow must be cleared, consider dividing the work into smaller sessions rather than waiting until a large accumulation has developed. Pushing snow instead of lifting and throwing it can reduce exertion. Take frequent breaks, dress in layers, cover the head and hands, and avoid alcohol around strenuous snow removal. Most importantly, stop immediately if you develop chest pressure, chest pain, unusual shortness of breath, dizziness, faintness, or abnormal heart palpitations. The American Heart Association advises seeking emergency help rather than attempting to push through potentially serious symptoms.

Recognizing Hypothermia During a Portland Winter Storm

Hypothermia occurs when the body loses heat faster than it can produce it, causing core body temperature to fall to a dangerously low level. It can occur outdoors during a storm, but it can also develop indoors when a home loses heat for an extended period. Maine CDC identifies older adults, infants, people with chronic cardiovascular or lung conditions, people living in homes with inadequate heat, outdoor workers, and certain other groups as being at increased risk.

Early symptoms can include shivering, fatigue, cold or pale skin, and difficulty performing normal tasks. As hypothermia becomes more serious, a person may become confused, unusually sleepy, clumsy, or unable to coordinate movements properly. Speech can become difficult or slurred, and severe hypothermia can progress to loss of consciousness.

Confusion is particularly dangerous because hypothermia can interfere with a person's ability to recognize the problem or make rational decisions. Someone who is becoming severely cold may insist that they are fine even while their condition is deteriorating. For that reason, family members, neighbors, and caregivers should pay particular attention to older adults and anyone who is alone during a prolonged power outage.

If hypothermia is suspected, move the person to a warm location and remove wet clothing. Wrap them in dry blankets or clothing and seek medical attention for significant or worsening symptoms. Severe hypothermia is a medical emergency. Maine emergency preparedness guidance emphasizes the importance of warm clothing, blankets, and appropriate shelter during severe winter weather.

Residents should not attempt to solve a serious hypothermia case with aggressive external heat. A person with altered mental status, severe drowsiness, unconsciousness, or other signs of serious cold exposure needs urgent medical evaluation.

Frostbite: What Portland Residents Should Know

Frostbite is a cold injury that occurs when skin and underlying tissues freeze. Fingers, toes, ears, nose, cheeks, and other exposed areas are particularly vulnerable. Wind, wet clothing, prolonged exposure, and inadequate protection can accelerate the process.

Early frostbite may produce numbness, tingling, pain, or changes in skin color. As freezing progresses, the affected area may become firm, pale, waxy, or unusually numb. Because numbness can develop as the injury worsens, a person may not realize how serious the exposure has become.

One of the most important first-aid rules is to avoid rubbing or massaging frostbitten skin. Do not rub the area with snow, because this can cause additional tissue damage. The CDC recommends warming frostbitten areas in warm, rather than hot, water when appropriate. If warm water is unavailable, body heat can be used in some circumstances, such as placing frostbitten fingers against the warm area of an armpit. Heating pads, heat lamps, stoves, fireplaces, and radiators should not be used directly because numb tissue can burn easily.

Frostbite should be medically evaluated, particularly when the skin is hard, deeply numb, blistered, discolored, or when a large area is involved. Rewarming can be painful, and deeper frostbite may damage tissue sufficiently to require specialized medical care. Hypothermia can also occur at the same time and takes priority as a potentially life-threatening emergency.

Carbon Monoxide Poisoning From Generators and Blocked Vents

Power outages create another serious winter health hazard: carbon monoxide poisoning. Carbon monoxide, or CO, is a colorless and odorless gas produced when fuels such as gasoline, propane, natural gas, charcoal, or other carbon-based fuels burn incompletely. Because people cannot see or smell it, dangerous exposure can develop without an obvious warning.

Portable generators are a major concern during winter storms. The CDC advises that generators should never be operated inside a home, basement, garage, or other enclosed space. Generators should also be kept at least 20 feet away from windows, doors, and vents, with exhaust directed away from the building.