"If soldiers are prepared, mentally and physically, with the proper training and equipment, those units will be extremely effective, year round and in any climate. A soldier well trained and experienced in the cold will also perform at a high level in more hospitable weather," he said.

A soldier trained only in summertime or under ideal conditions will have great difficulty when operating in cold weather, he warned. "In many cases, soldiers and units have an absolute inability to perform effectively in extreme cold."

"When the mercury drops and the snow falls, avoid (when prudent) conducting indoor physical training. Snowshoeing for example, is an excellent opportunity to allow soldiers to become familiar and comfortable with their cold weather uniform and equipment while at the same time conducting physical training," Fields said.

Educational opportunities for wintertime activities exist at many colleges and outdoor recreation groups or co-ops, Fields said. "If you'd like to go backcountry skiing, snowshoeing or camping, for example, take an avalanche awareness course, a wilderness first aid course or even a backcountry camping course.

Avoid tight fitting, restrictive clothing, especially garments made with cotton. "Wear clothing loose and in layers to maximize the benefits of the insulating properties of the clothing."

"Many live by the mantra: 'There is no bad weather, only bad equipment (clothing).'"

Finally, Fields said: "Continually study and learn to recognize the signs and symptoms of cold weather injuries. Most importantly, know how to prevent and treat dehydration, hypothermia, chilblains and frost bite."

Here are some other top tips from the Centers for Disease Control and Prevention for staying safe:

• Bring extra water with you and plan to drink more water when exerting yourself outdoors in the cold.
• Carry a rucksack or backpack filled with nutrient-dense foods, an aluminum blanket, a compass, back-up battery for your cell phone, mirror, rope, utility knife, and first aid kit.
• Carry extra gloves or mittens in case yours get wet.
• Stay on the trails. Off trail, you might not be able to see trunk holes, rocks and other potential hazards.
• Tell someone where you're going, with whom, and when you plan to be back. Create a time when they should alert authorities that you may be lost or injured.
• Be aware of frostbite, which can show up sooner than you think. Never immerse a frostbitten extremity in hot water. Instead, you should gradually warm up the extremity over time to avoid damage to blood vessels and tissues.
• If a heavy snowstorm starts, stay where you are and build a lean-to if you can. Don't wander off, so that rescuers can more easily find you if needed.
• Have a safety kit ready in your car's trunk that includes blankets, protein bars, water, first aid kit, and an auto safety kit that includes flares.
• A colorful rag may be useful to hang out your window so snow plows can see you.
• In an emergency, stay put until help comes if at all possible.