Health Risks During Winter Storms in Anchorage, Alaska: Staying Safe When Extreme Cold and Heavy Snow Arrive

Anchorage experiences some of the most challenging winter weather in the United States. Long periods of freezing temperatures, heavy snowfall, icy roads, strong winds, and limited daylight create conditions that can affect nearly every aspect of daily life. While many residents are well accustomed to winter, severe storms still pose significant health risks that should never be underestimated.

Winter storms do more than create transportation delays or school closures. They can trigger heart attacks during strenuous snow removal, increase the risk of hypothermia and frostbite, contribute to carbon monoxide poisoning, interrupt access to medications, worsen seasonal depression, and place tremendous pressure on hospitals and emergency services. Understanding these risks allows individuals and families to prepare before a storm arrives instead of reacting during an emergency.

Whether you are a lifelong Anchorage resident or experiencing your first Alaskan winter, knowing how winter weather affects human health can help prevent serious injury and even save lives.

Why Anchorage Winter Storms Are Different

Anchorage's northern latitude creates unique winter conditions compared to many other American cities. Snow can accumulate quickly, temperatures frequently remain below freezing, and daylight hours become extremely short during the middle of winter.

These environmental factors combine to create several hazards:

• Increased physical strain from frequent snow removal
• Extended exposure to subfreezing temperatures
• Ice-covered sidewalks and roads
• Reduced visibility during blowing snow
• Power outages during severe storms
• Limited transportation options when roads become dangerous
• Increased isolation during prolonged weather events

Many health emergencies during winter storms are preventable with proper planning and informed decision-making.

Snow Shoveling and the Increased Risk of Heart Attacks

One of the most overlooked dangers during Anchorage winters is the cardiovascular strain caused by shoveling snow.

Many people think of snow removal as ordinary household work, but medically speaking, it combines several high-risk factors simultaneously:

• Heavy lifting
• Cold temperatures
• Increased blood pressure
• Elevated heart rate
• Restricted blood vessels
• Reduced oxygen efficiency

Cold weather naturally causes blood vessels to constrict. This raises blood pressure and forces the heart to work harder. When someone begins lifting heavy snow, especially dense, wet snowfall, oxygen demand increases dramatically.

For individuals with existing heart disease—even if undiagnosed—this combination may trigger:

• Heart attack
• Cardiac arrhythmias
• Chest pain (angina)
• Sudden cardiac arrest

Older adults are particularly vulnerable, but younger people with untreated hypertension, diabetes, obesity, or smoking history also face elevated risk.

If you have a heart condition, check the Anchorage winter storm warning today before deciding whether to shovel—during an active warning, heavy wet snow combined with cold air significantly increases cardiac risk.

Warning Signs During Snow Removal

Stop shoveling immediately if you experience:

• Chest pressure
• Pain spreading into the jaw
• Pain radiating into the arm
• Shortness of breath
• Dizziness
• Sudden sweating
• Nausea
• Extreme fatigue

These symptoms require immediate medical evaluation.

Safer Snow Removal Practices

Residents can reduce cardiovascular stress by:

• Shoveling smaller amounts at one time
• Taking frequent breaks
• Using lightweight ergonomic shovels
• Pushing snow instead of lifting whenever possible
• Avoiding caffeine before heavy physical work
• Dressing in layers to prevent overheating
• Hiring snow removal services if medically high-risk

Never shovel immediately after waking, as blood pressure naturally rises during the early morning hours.

Understanding Hypothermia

Hypothermia develops when the body's core temperature drops below approximately 95°F (35°C).

Although many associate hypothermia with wilderness survival, it regularly occurs in urban environments during severe winter storms.

Common situations include:

• Walking home in extreme cold
• Vehicle breakdowns
• Power outages
• Inadequate home heating
• Falls into icy water
• Homelessness
• Elderly individuals living alone

Wind dramatically accelerates heat loss, making Anchorage wind chills especially dangerous.

Early Symptoms

Early hypothermia often develops gradually.

Watch for:

• Persistent shivering
• Slurred speech
• Poor coordination
• Confusion
• Difficulty concentrating
• Cold, pale skin
• Slow movements
• Fatigue

People experiencing hypothermia frequently do not recognize their own symptoms.

Advanced Symptoms

As body temperature continues falling:

• Shivering may stop
• Mental confusion worsens
• Pulse slows
• Breathing becomes shallow
• Loss of consciousness occurs
• Cardiac arrest becomes possible

At this stage, emergency medical treatment is critical.

Treating Hypothermia

If someone may be hypothermic:

Move them indoors immediately.

Remove wet clothing.

Cover them with dry blankets.

Warm the torso first.

Offer warm (not hot) non-alcoholic beverages if fully awake.

Avoid rapid heating with extremely hot water.

Never rub frozen skin aggressively.

Call emergency medical services if symptoms are moderate or severe.

Improper warming techniques may worsen complications.

Frostbite: More Than Frozen Skin

Frostbite occurs when skin and underlying tissues freeze.

The areas most commonly affected include:

• Fingers
• Toes
• Nose
• Ears
• Cheeks
• Chin

Anchorage residents who spend time outdoors for work or recreation are particularly susceptible during windy conditions.

Early Frostbite Symptoms

Initially, skin may become:

• Red
• Painful
• Tingling
• Numb

As freezing progresses:

• Skin becomes white
• Skin appears waxy
• Hard patches develop
• Sensation disappears

Deep frostbite damages muscles, nerves, tendons, and even bone.

First Aid for Frostbite

Move indoors immediately.

Protect affected skin from additional freezing.

Remove wet gloves or socks.

Warm frozen tissue slowly using warm water between 98°F and 104°F (37–40°C).

Do not:

• Rub frozen skin
• Massage affected areas
• Apply direct heat
• Use heating pads
• Place frostbitten skin near fireplaces

These methods increase tissue damage.

If blisters appear or skin turns black, seek emergency medical care immediately.

Carbon Monoxide Poisoning During Winter Storms

Winter storms increase carbon monoxide (CO) poisoning incidents throughout Alaska.

Carbon monoxide is:

• Colorless
• Odorless
• Tasteless

Victims often never realize they are being poisoned.

Common Winter Sources

Power outages often lead residents to use alternative heat sources.

Dangerous sources include:

• Portable generators
• Charcoal grills
• Gasoline-powered equipment
• Improperly vented heaters
• Running vehicles inside garages
• Snow-blocked furnace exhaust pipes
• Snow-covered dryer vents

Even partially blocked ventilation systems can allow dangerous gases to accumulate indoors.

Symptoms of Carbon Monoxide Poisoning

Early symptoms resemble influenza:

• Headache
• Fatigue
• Dizziness
• Nausea
• Vomiting

More serious poisoning causes:

• Confusion
• Loss of coordination
• Collapse
• Seizures
• Death

If multiple household members suddenly develop headaches simultaneously, carbon monoxide should be suspected.

Prevention

Every Anchorage home should have functioning carbon monoxide detectors.

Additional precautions include:

• Never operate generators indoors.
• Keep generators far away from windows and doors.
• Clear snow away from furnace exhaust vents.
• Check outdoor vents after every major snowfall.
• Never heat homes using ovens.
• Have heating systems inspected annually.

Carbon monoxide emergencies require immediate evacuation and emergency response.

Seasonal Affective Disorder During Long Winter Storms

Physical health is only part of winter wellness.

Anchorage's limited daylight, combined with extended storms, can significantly affect mental health.

Seasonal Affective Disorder (SAD) is a form of depression associated with seasonal changes, particularly reduced sunlight.

Common Symptoms

People experiencing SAD may notice:

• Low mood
• Fatigue