Winter storms are not an everyday part of life in Las Vegas, but when unusually cold temperatures, snow, freezing conditions, strong winds, or icy roads affect the Las Vegas Valley, the health risks can extend well beyond slips and traffic accidents. A storm can disrupt transportation, close roads, interrupt power, make it difficult to reach a pharmacy or medical appointment, and create dangerous conditions inside a home.

Las Vegas residents should also remember that unfamiliar winter conditions can be particularly challenging. People who rarely deal with snow or prolonged cold may underestimate how quickly the body can become chilled or how strenuous snow and ice removal can be. Before going outside during severe weather, check the Las Vegas winter storm warning today and consider whether the trip or outdoor task is genuinely necessary.

The following health concerns deserve particular attention during a winter storm: cardiac strain from snow shoveling, hypothermia, frostbite, carbon monoxide poisoning, mental-health effects from prolonged isolation, difficulty obtaining medications, and pressure on local emergency medical services and hospitals.

Heart Attack Risk From Snow Shoveling

Snow shoveling can look like a simple household chore, but it can place considerable stress on the cardiovascular system. The American Heart Association warns that heavy snow removal can increase the risk of heart attack or sudden cardiac arrest, particularly when strenuous exertion is combined with cold temperatures. Cold causes blood vessels to constrict, which can increase blood pressure, while lifting and throwing snow can rapidly raise heart rate and cardiac workload.

This matters in Las Vegas because residents may not be accustomed to strenuous snow removal. Someone who normally spends little time exercising outdoors may suddenly attempt to clear a driveway, sidewalk, or vehicle after an unusual snowstorm. Heavy or wet snow can be particularly demanding.

People with known cardiovascular disease or risk factors such as high blood pressure, diabetes, high cholesterol, smoking history, obesity, or a previous heart attack or stroke should be especially cautious. The American Heart Association advises people with known or suspected heart disease or significant cardiovascular risk factors to avoid shoveling and have someone else handle snow removal when possible.

If snow must be cleared, pushing rather than lifting can reduce the physical demand. Work slowly, take frequent breaks, dress in layers, and avoid trying to clear a large area all at once. Do not ignore symptoms simply because they occur during physical work.

Warning signs can include chest pressure or pain, unusual shortness of breath, dizziness, faintness, nausea, sweating, or an abnormal sensation of the heartbeat. Stop immediately if these symptoms occur. If symptoms persist or a person appears to be experiencing a heart attack, call 911 rather than attempting to drive them through dangerous weather conditions yourself.

Recognizing Hypothermia Before It Becomes an Emergency

Hypothermia occurs when the body's core temperature falls dangerously low. Although it is associated with extreme cold, it can also develop in less severe temperatures when someone is wet, exhausted, improperly dressed, or exposed to cold for a prolonged period. The CDC notes that hypothermia can occur even at temperatures above 40°F when a person becomes wet or chilled.

Early symptoms can be easy to dismiss. A person may begin shivering, feel unusually tired, or have difficulty using their hands. As hypothermia progresses, symptoms can include confusion, memory problems, fumbling hands, slurred speech, and drowsiness. Severe hypothermia can impair judgment and consciousness.

If you suspect hypothermia, move the person into a warm shelter as soon as it is safe. Remove wet clothing and replace it with dry layers. Concentrate on warming the center of the body, including the chest, neck, head, and groin. If the person is alert and able to swallow, warm nonalcoholic drinks may help. Do not give drinks to someone who is unconscious or severely impaired.

A body temperature below 95°F is considered an emergency and requires immediate medical attention. If someone is confused, extremely drowsy, unconscious, or showing serious symptoms, call 911.

Older adults, infants, people with limited mobility, and individuals who have difficulty regulating body temperature can require particular attention during prolonged cold. Check on vulnerable relatives and neighbors if travel conditions allow, while avoiding unnecessary exposure yourself.

Frostbite: What It Looks Like and What to Do

Frostbite is a freezing injury that most often affects exposed areas such as the fingers, toes, nose, ears, cheeks, and chin. Early signs can include redness or pain followed by numbness. More advanced frostbite may cause skin to become white, grayish-yellow, firm, or waxy.

The first step is to get out of the cold. Protect the affected area from additional exposure and seek medical care. If professional care is not immediately available, the CDC recommends warming frostbitten areas in warm-to-the-touch water rather than using direct high heat.

Do not rub, massage, or vigorously manipulate frostbitten skin. Do not place numb fingers or toes directly against a fireplace, radiator, heating pad, stove, or other intense heat source. Numb skin cannot accurately sense temperature, so burns can occur before the person realizes it.

If the feet or toes are frostbitten, avoid walking on them unless absolutely necessary. The safest approach is to reach medical care without causing additional tissue damage. Severe frostbite can result in permanent injury and, in extreme cases, amputation.

Carbon Monoxide Poisoning During Power Outages

One of the most preventable winter-storm health emergencies is carbon monoxide poisoning. Carbon monoxide, or CO, is a colorless and odorless gas produced when fuels such as gasoline, propane, natural gas, or charcoal burn. High concentrations can cause sudden illness and death.

Power outages can increase the danger because residents may turn to portable generators, grills, camp stoves, or other fuel-burning equipment for heat or cooking. These devices must never be operated inside a home, garage, basement, camper, or other enclosed space. The CDC recommends keeping portable generators at least 20 feet away from windows, doors, and vents and operating them where exhaust cannot enter the building.

Blocked vents create another serious problem. Snow, ice, debris, or other obstructions can interfere with exhaust systems and allow combustion gases to accumulate. Before operating fuel-burning heating equipment, check that required vents and exhaust outlets are clear and follow the manufacturer's instructions.

Symptoms of carbon monoxide poisoning can include headache, dizziness, weakness, nausea, vomiting, chest pain, confusion, and altered mental status. Because CO is odorless, you cannot rely on smell to detect it.

If a carbon monoxide alarm sounds, or several people in a home develop unexplained headache, dizziness, nausea, or weakness, get outside into fresh air immediately and call 911 or the appropriate emergency service. Do not remain indoors trying to identify the source of the gas.

Every household should have working carbon monoxide detectors, particularly near sleeping areas. Batteries should be checked before winter weather arrives.

Seasonal Affective Disorder and Prolonged Storm Isolation

Winter storms can affect mental health as well as physical health. A single storm may keep people indoors for a day, but repeated storms, prolonged cloud cover, transportation problems, power outages, and social isolation can create additional emotional strain.

Seasonal affective disorder, or SAD, is a form of depression associated with a recurring seasonal pattern. Winter-pattern SAD can involve persistent sadness, low energy, loss of interest, difficulty concentrating, increased sleep, social withdrawal, and changes in appetite. The National Institute of Mental Health emphasizes that SAD is more than an occasional case of feeling down during bad weather.

For Las Vegas residents, a storm-related reduction in normal outdoor activity can temporarily change daily routines. People who normally walk, exercise outdoors, meet friends, or participate in community activities may suddenly spend much more time inside.

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 make use of available daylight. If depressive symptoms persist for two weeks or longer, interfere substantially with daily life, or become increasingly severe, speak with a healthcare professional.

Evidence-based treatments for winter-pattern SAD include light therapy, psychotherapy, and certain medications. Light therapy is not appropriate for everyone, particularly people with certain eye conditions or those taking medications that increase sensitivity to light, so discussing treatment with a healthcare provider can be important.

Anyone experiencing thoughts of suicide or immediate emotional danger should seek emergency help. In the United States, the 988 Suicide & Crisis Lifeline is available by calling or texting 988.

Planning for Pharmacy Access During Road Closures

A winter storm can create a medical problem even when nobody becomes injured: getting prescription medication may become difficult. Icy roads, snow accumulation, vehicle restrictions, reduced public transportation, and temporary business closures can prevent people from reaching a pharmacy.

This is particularly important for people who depend on daily medications for heart disease, diabetes, asthma, epilepsy, blood pressure, mental-health conditions, or other chronic illnesses. Waiting until the last few doses can create unnecessary risk.

Before severe weather arrives, review your medication supply and contact your pharmacy if you are approaching a refill date. Ask whether your prescription can be refilled early, transferred when legally permitted, or arranged for delivery. Some medications have special dispensing rules, so pharmacy staff or the prescribing clinician can explain the available options.

Keep an updated medication list that includes prescription names, doses, allergies, and prescribing providers. Store medications according to their labeled temperature and moisture requirements. Do not stockpile prescription medication beyond what your healthcare provider or pharmacist recommends.

It is also useful to identify alternative pharmacies in case your normal location closes. However, do not assume another pharmacy will have a particular medication in stock. Calling ahead can prevent an unnecessary trip during dangerous road conditions.

How Las Vegas Hospitals Prepare for Winter Emergencies

Hospitals and emergency medical systems must continue operating even when weather makes transportation difficult. A winter storm can create simultaneous demands from traffic crashes, falls, cold-related illness, cardiac emergencies, carbon monoxide poisoning, respiratory problems, and people whose chronic medical conditions become harder to manage.

Emergency preparedness therefore involves more than keeping an emergency department open. Local public-health agencies maintain emergency plans and coordinate preparedness activities with community partners. The Southern Nevada Health District's Office of Public Health Preparedness provides emergency-planning resources and information designed to help Southern Nevada respond to disasters and other public-health emergencies.

The local emergency medical system also maintains clinical protocols and trauma-system planning for emergency care. These systems are designed to support medical response when normal conditions are disrupted.

Residents can support emergency preparedness by avoiding unnecessary emergency-department visits when a condition can safely be handled through a primary-care provider or telehealth service. At the same time, serious symptoms should never be ignored simply because roads are difficult.

Chest pain, severe breathing difficulty, stroke symptoms, severe confusion, unconsciousness, serious injuries, suspected carbon monoxide poisoning, and severe hypothermia are examples of situations requiring urgent medical attention. Call 911 when appropriate rather than attempting to wait until roads improve.

Build a Winter Health Kit Before the Storm

A small emergency health kit can reduce the need to leave home during dangerous conditions. Southern Nevada Health District preparedness guidance recommends maintaining supplies such as first-aid materials, a thermometer, appropriate medications, sturdy footwear, blankets, and other emergency necessities.

For a Las Vegas household preparing for an unusual winter storm, consider keeping the following items available:

• A first-aid kit and digital thermometer
• Several days of essential prescription medications when possible and medically appropriate
• Over-the-counter medications normally used by household members
• Warm blankets, socks, gloves, hats, and layered clothing
• Flashlights and spare batteries
• Battery-powered or battery-backup carbon monoxide detectors
• Phone chargers and backup power banks
• Bottled water and shelf-stable food
• A written list of medications, allergies, medical conditions, and emergency contacts
• Basic hygiene supplies and necessary medical equipment

People who use powered medical equipment should have an emergency plan for outages. Ask the equipment provider or healthcare team about backup power requirements before a storm, rather than waiting until electricity is lost.

Know When Staying Home Is the Healthier Choice

During a winter storm, the safest health decision is often to avoid unnecessary travel. A trip that normally takes 15 minutes can become much more dangerous when roads are icy, visibility is poor, vehicles are stranded, or emergency responders are dealing with multiple calls.

That does not mean every medical problem should be handled at home. The key is to distinguish routine needs from emergencies. Prescription refills, routine appointments, and nonurgent errands may be rescheduled or handled remotely when possible. Serious symptoms should receive prompt medical attention regardless of the weather.

Keep emergency contact information accessible, monitor official weather and public-safety updates, and check on vulnerable household members. The Southern Nevada Health District also provides preparedness resources and emergency information for residents of Clark County.

Final Thoughts

Winter storms in Las Vegas can be unusual, but unusual does not mean harmless. The combination of cold exposure, strenuous snow removal, icy travel, power outages, indoor heating hazards, medication interruptions, and prolonged isolation can create significant health risks.

The most effective protection is preparation. Avoid strenuous snow shoveling if you have cardiovascular risk factors, recognize the warning signs of hypothermia and frostbite, keep generators outdoors and away from openings, maintain working carbon monoxide detectors, plan prescription refills before roads become hazardous, and take mental-health symptoms seriously.

Most importantly, do not allow the unusual nature of a Las Vegas winter storm to create a false sense of security. Conditions can change quickly. Knowing when to stay indoors, when to call a healthcare professional, and when to call 911 can make a major difference when normal services and transportation are disrupted.