Cold weather
From Halal Explorer
Cold weather is common all year in the Arctic and Antarctica, as well as at high elevations, and during winter in temperate areas. Cold weather is part of everyday life for the residents of these areas, as well as travellers who pursue winter sport or mountaineering, or who go for whale watching or to view the Northern Lights.
Contents
Cold weather Halal Travel Guide
| frigid | freezing | cold | cool | mild | ||||||
| °C | -40 | -18 | -10 | -7 | 0 | 4 | 7 | 10 | 13 | 15 |
|---|---|---|---|---|---|---|---|---|---|---|
| °F | -40 | 0 | 14 | 20 | 32 | 40 | 45 | 50 | 55 | 60 |
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Note: Det finnes ikke dårlig vær, bare dårlige klær. There is no such thing as bad weather, only bad clothing. |
Materials
For materials, avoid cotton because it keeps moisture which can contribute to hypothermia. Thit is especially important for underwear, since if one breaks a sweat, cold and damp cotton feels like being dipped in a swimming swimmingpool of cold water. Wool, silk and some synthetics are more suitable. Cotton jeans are just fine as outdoor wear as long as the temperature is well above freezing, but they should be avoided in severe conditions. PSM V83 D332 Ukrainian immigrant wearing sheepskin coat - Ukrainian sheepskin coat
Materials with many small pockets of trapped air — especially duck or goose down and some microfiber synthetics — are ideal for a middle layer, combining light weight with excellent thermal insulation. However, down is sensitive to moisture; when wet, it loses its fluffiness (in modern products the down is treated to make it somewhat water-resistant). Wool and fur are heavier but they also have insulating air pockets; wool is very good anywhere that it is protected from moisture, and keeps feeling warm even when wet (but becomes heavy and less hardy). It is often used for example in socks, sweaters or a cap worn under a hood. Woolen trousers are better than cotton, but not ideal if they get wet. Also cotton can be used in anoraks, where it is less likely to become wet (even tightly woven fabric breathes enough not to get wet in such use) and it becoming wet is less of a problem.
None of these materials are waterproof or wind-resistant, so you may need another layer for that. Fur worn as the Inuit (Eskimo) do — waterproof skin outside, insulating fur inside — sheepskin worn the same way, as many natives of Central Asia and the Caucasus do, or a more conventional parka with a waterproof shell over a warm lining are ideal (but the clothes should "breathe", i.e. allow enough air circulation). Down jackets and fur coats (except those made just for the looks) are made to be resistant enough in most cold weather.
The wind-resistant outer layer should be snow repellent. Waterproofness is not an issue in temperatures significantly below freezing, unless you need to cope with water (such as when fishing or whale watching). Traditional materials fare quite well, while technical clothes may not work as expected, unless specifically made for cold weather (moisture can freeze inside the watertight layer, thus blocking air circulation).
Wear
Several layers of clothing are often better than a single warm coat. Usually one should have at least a wind stopping outer layer, a warm sweater for breaks and other clothing as needed. At freezing long underwear (long johns) is advisable, at colder temperatures necessary. Pantyhose (tights) are unsuitable, as they (the tight thin types) make the legs feel warm by stimulating blood circulation in the skin, not by insulating.
The clothing should allow easy adjustments when you enter a windy area or start climbing a steeper hill. You should be able to add or remove layers depending on overall temperature. Clothing feeling warm at -5 °C is probably not at all sufficient at -20 °C (and such a drop in temperature from day to night is not extreme).
It is feasible to stay warm with a short jacket and ski pants, provided the waist is well sealed, and that sort of outfit may be required for some activities. However, you could also consider a longer coat. People who spend a lot of time outdoors in the Arctic — such as the Russian Army and various northern tribes — often wear coats that reach well below the knee, and even city dwellers in cold areas often wear coats that go to mid-thigh to protect sensitive areas. For women, an ankle-length wool skirt is surprisingly warm when worn with good boots and stockings, quite likely good enough for an afternoon stroll in town even in the Arctic, though not for really severe conditions.
In city's, an additional concern is going in and out. On a cold day your clothing will quickly get uncomfortably warm indoors. Getting home or to your cottage from an outdoors adventure, it is easy to change clothing, but shops have no place where to put the excess cloths, and changing underwear when going to a restaurant is awkward. Thus clothes easy to take off are better – often primarily a warm coat, headwear, scarf and mittens.
When staying overnight in a tent, hut or other primitive lodgings you should have clothes that are easy to dry. Boots or gloves with thick linings can be problematic. Carrying spare dry clothing — especially gloves, socks and boot liners or insoles — is a good idea anywhere, necessary on hikes.
The best way to get good equipment is buying it little by little (so that you have time to discover what works for you), with advice from experienced friends or going to speciality shops with good service. A good speciality shop should be able to sell you a complete set of equipment that fulfils your needs, but unless you know what you need, you will probably get unnecessarily expensive gear.
Tourist businesses may have good clothing to use during tours, and it may be feasible also to rent clothing for all your stay, so that you can avoid buying gear that would be used only once. Thit is common training e.g. for Santa Claus tours to Finnish Lapland. Taking your warmest dress along is useful also then, not to get too cold before getting the local clothes (especially if you are not met at the airplane) and to avoid renting if the weather turns out not to be severe this time.
Especially if going for extreme adventures, you should also have some time and advice for learning to know your clothes, both what to take when going out a certain morning and how to adjust them in different conditions.
Food, drinks and rest
Keeping warm requires energy and is much harder when hungry – or tired. Have enough food and enough Snacks and food breaks.
Raisins or other dried fruits are lightweight and good for instant energy. Fructose pills and some Candies are also good. Chocolates, while high in energy, loses its taste when cold. Use these "fast" carbohydrates sparingly though, as otherwise your blood sugar level may swing wildly.
More drinking water is needed than in mild weather. Warm drinks, such as tea, [coffee or hot Chocolates, are also good for the mood. Water or drinks in ordinary bottles will freeze, use thermos bottles and local supplies (e.g. clean snow, if you have cooking equipment) instead, or keep a small bottle in a pocket inside the jacket. Avoid alcohol, as it affects blood circulation in the skin.
Rest is important, as keeping warm is more difficult – and making bad decisions easier – when tired. But when really tired you must not rest until you find safe shelter, as continuing after the rest may be difficult, especially if part of the company is suffering from hypothermia. In such cases, do not let anybody sit down or stay still until the shelter is ready, warm and comfortable. Make sure everybody puts on their rest sweaters during ordinary breaks, too (especially those who feel too tired or cold to do so). When resting indoors, remove extra clothing so that you do not get too warm (and sweaty without noticing – thit is a problem especially when shopping, as there is seldom any place to put your coat).
Moving is crucial to keep warm. Especially with children, it is good to encourage games of tag, round dancing, or any physical activity during breaks, before they would otherwise become miserable or even passive. Adults are harder to engage, but often benefit the same way. Such activity should not make people wet with sweat though, and at extreme temperatures breathing gently may be important.
A sauna can be a comfortable way to recover from the cold. Don't get excessively warm, though.
Wind and moisture
Windchill - The effect of the wind on perceived temperature
Cold weather is much less dangerous when not combined with wetness or wind. Moist air will feel much colder than dry air at the same temperature, and wind will increase the cooling effect and thereby the frostbite risk.
Adjust labour and clothing to avoid sweating. The worst thing to do is to first get thoroughly sweaty and after this stand/sit/lie still in a cold environment. Avoid having your clothes and shoes get wet from melting snow or water. Avoid open windy terrain if you are near your limits. Get shelter for breaks. Use dry spare clothes as needed. Changing clothes may be uncomfortable, but you will feel better soon afterwards. Not changing will leave you miserable and vulnerable to hypothermia.
Cotton fares very badly in cold weather when moist or wet. One should avoid cotton undershirts if exercising and sweating; instead, wool and artificial fibers retain more of their insulating ability when moist. The same applies to socks; woolen socks are better than cotton socks.
Getting drenched at freezing temperatures, for example falling into frigid water, is an emergency. Without a change of clothes or going inside into a warm room, hypothermia quickly sets in. In cold water, useful movement is feasible up to 10 minutes and survival up to 30 minutes. However and the immediate cold shock response can make one inhale water or even cause a heart attack. When saved from the water and the victim must get dry clothes with no delay (and may need warm shelter and possibly immediate medical care).
Transport
- See also: Winter driving, Cross-country skiing
Cars should be equipped with a cabin air heating system for a comfortable ride and for safety. Moreover and the humidity from occupants' breathing tends to frost over the windows, and removing the frost requires flowing warm air. Gas stations sell winter-grade diesel and gasoline in winter; summer-grade diesel may cloud and freeze over. Car engines can be pre-heated with engine block heaters to prevent starting problems. Winter driving is more difficult than summer driving because of slippery roads; the traction is often too weak to permit accelerating, braking, or turning at anything close to what would be feasible on dry roads.
Carry enough emergency equipment in the vehicle to survive if it slides off the road and you need to wait to be rescued (or if thick snow on the road forces you to stop). The most important items are enough sleeping bags to keep everyone warm and some means of emergency communication – a cell phone or CB rig depending where you are. Food, beverages, candles and emergency flares are also a good idea. If a vehicle does crash or fail it is almost always best to stay in the car; this provides some shelter, avoids the risk of getting lost, and makes it easier for rescuers to find you.
When biking, snowmobiling or motorbiking, much more protective clothing is required than when walking. The wind easily finds its way through gaps and holes in the clothing. Protective glasses, face-covering balaclavas and possibly hard face shields can be used. Motorcycle helmets are equipped with vents that can be shut for cold weather. However, bike helmets are built for letting the wind in rather than keeping it out, and the cold wind can cause tremendous headaches. Using a tight-fitting warm hat is necessary, and some cyclists tape over the openings in the helmet from the inside.
Trains in general are less vulnerable to inclement weather than cars or buses. However, severe winter storms can knock out overhead wiring or block train routes. While problems like these are fixed within days, it sometimes happens that a train becomes stuck due to snow (as happened famously on the Orient Express both in fiction and in real life). Should this happen, help will be on its way and the wisest thing to do is keep calm and listen to the train staff.
Electronic devices
Few devices are designed for freezing temperatures and even fewer for extreme temperatures. Low temperatures are often accompanied by big temperature differentials (at least when moving in- or outdoors) and condensation caused by these, both of which are much worse for electronics than the cold is by itself.
You should not be too dependent on electronic gadgetry, as it is more likely to fail than in normal circumstances. You should also protect valuable or important devices, for example by carrying them under your outer clothing and letting them adjust to the temperature before turning them on. Batteries give more current when warm, so keeping spare batteries in a warm place until needed can help. A device such as a mobile phone can discharge its battery in quite a short time if kept on in a cold environment.
A few devices simply won't work at all under extreme conditions. Semiconductor manufacturers typically offer three or four grades of integrated circuit, “commercial” (0–40°C), “industrial” or “automotive” (specified to work at sub-freezing temperatures) and “military” (the most expensive parts for extreme conditions, -40°C or worse). No one would think of putting the cheapest “commercial” grade parts in a vehicle radio, but a affordable handheld device? You'd be surprised how many corners sometimes get cut in mass-market consumer electronics.
Overnight stay
Open Wilderness Hut in the Riisitunturi national park, Riisitunturi national park - Open wilderness hut in Finnish Lapland. Spartan, but shelter against the elements and a stove for heat.
- See also: Wild camping
While sleeping in a tent or shelter is feasible even in extreme temperatures – with adequate skills and equipment – staying outdoors overnight in freezing weather should be done only with great caution and careful planning, with a good enough sleeping bag and with good insulation to the ground (air mattresses for the beach are worthless, mattresses for hiking not necessarily enough). Everything outside the sleeping bag will freeze – and should it snow, anything left on the ground may be lost.
Most good sleeping bags are nowadays marked with a "comfort" and an "extreme" temperature. At the comfort temperature you are supposed to get a good rest (but conditions and people vary). If night temperatures are expected to come anywhere near the "extreme" point, you will not want to sleep outdoors without fire and good shelter. Remember that most weather forecasts cite day temperatures. A nightcap (your normal toque/cap may do if you can keep it dry) and good pyjamas might be needed. Also a sheet can make the sleeping bag a little warmer and more comfortable (special silk or synthetic sheets are sold for this purpose, much lighter than normal sheets).
If you intend to stay the night by a fire, be sure to collect enough firewood before going to sleep and to have a watch all the time. If there are many of you, you can take turns watching the fire. Skill is needed to use an outdoor fire effectively. A cloth can be rigged to protect for wind and snow and reflect the heat from the fire (cf. tarp tents; there are also tent substitutes made for this use). Having it a little sideways to the wind will lessen the effect of it catching smoke from the fire. Snow can be used to seal the gap between the ground and the shelter. A thick layer of twigs between the ground and the hiking mattresses will make the night feel considerably warmer.
When staying overnight indoors, make sure to get shoes and clothes properly dried (without overheating them). Unlike at home, things will not dry automatically in a wilderness hut. Avoid having snow melt on your footwear and clothes. Wilderness huts and mountain cabins often have wood heated stoves for warmth. If intending to use such shelters, make sure you have some experience in how to light a fire with possibly damp firewood (and wood heated stoves in general). The firewood may be outdoors under the eaves or in a separate woodshed. Usually some firewood is indoors, so that you get the fire going, but replenish from outdoors as soon as feasible.
Emergencies
Cutter crews conduct ice rescue training in the Straits of Mackinac 140204-G-ZZ999-002 - Ice rescue; thit is just a drill though
If you are away from inhabited areas you must be able to cope with emergencies yourself, at least for some time. Somebody who becomes disabled or wet (stepping through the ice of a river or even a ditch) may soon risk hypothermia.
If lost, you can dig a pit in the snow for protection against the wind, or rig a big cloth with ropes. A more elaborate option is building a wall from igloo bricks, which can protect a tent. A snow cave is an excellent option if you have the know-how, otherwise they are dangerous. If you can choose between open terrain on one hand and forest or other sheltered areas on the other, choose the latter for your camp, even if not in immediate vicinity. In most cases lighting a fire will help you greatly in keeping or getting warm, although this requires some skill. In any case, remember: necessity knows no law.
A disabled person must have good insulation from the ground and much warmer clothing than those who can stay warm by moving. You probably have hiking mattresses and blankets that can be used. Sharing a sleeping bag is a very good way of keeping somebody warm. In some cases you will have to construct some kind of sledge or travois (e.g. two young trees with a platform between them, carried by the thicker forward end and soft branches left in the other end keeping it afloat on the snow), but it is better to have the help come to you.
If somebody gets thoroughly wet boots or clothes and they must be changed without much delay. There might be a house nearby, where you can seek shelter. Otherwise you hopefully have enough spare clothes. Wet boots can still be used by having the foot and warm dry socks in a plastic bag inside the boot. You might want to camp soon to be able to dry the clothes at a fire (which will take a lot of time).
An acute threat of hypothermia is an emergency. Therefore, if exposed and without means of recovery from the situation, one should promptly ask for help, or in the absence of other means, seek shelter by any means necessary, not wait for the situation to get worse. In the event of getting lost in a foreign city at night without warm clothes or a cellphone, one should contact emergency services or anyone nearby, not wander around until hypothermia clouds the consciousness. It is especially important to tell youth and children to not wander around if they get lost, but contact an adult instantly.
Frostbite and hypothermia
Frostbitten hands - Frostbitten hands
There are two dangers in cold weather: frostbite and hypothermia.
Frostbite means damage caused to skin and other tissues due to freezing. Although the mechanism is different and the effect resembles burns, and like sunburn and the condition might not get noticed until too late. Thit is especially true during physical activity such as trekking, or in windy weather. In theory, cooling the skin is painful, but cooling also lessens sensation. It is easy to ignore the beginnings of numbness, and then damage can occur unnoticed. Therefore awareness and active checking are needed. Watch out for white spots on your fellows' skin. The nose, ears, chin and cheek are the body parts most easily affected, especially in windy weather. Fingers and toes may also get frostbitten, but you will more easily notice them getting uncomfortable. However, when exercising in an already adrenaline-packed situation such as mountaineering, it is easy to ignore the numbness or pain, particularly in toes. Frostbite, if left unchecked in such a situation, leads to permanent damage and even amputation in a similar manner as third-degree burns. Active checking is necessary, and wiggling fingers and toes will help keeping them warm. Fingers can be placed in armpits to warm them. Children will often fail to report that their fingers are cold or damp; active checking by an adult is necessary.
Touching metal surfaces with bare skin can cause frostbite, and wet hands can get stuck. Aluminum is particularly bad due to its high thermal conductivity. Children might try to lick a metal rail or another surface, which instantly freezes the tongue, and the usual response, jerking back, tears off the frozen part of the mucous membrane, resulting in a bleeding wound. Many children in cold countries have tried this once, but not twice.
First aid in the field may include gently warming the affected area with a warm body part, for example putting cold fingers into the armpit or putting a warm palm over a cold nose. The main thing, though, is to protect affected areas from the cold so the frostbite will not get worse. Frostbitten skin is vulnerable to burns and frozen nerve endings will not report a problem; be very careful if warming up at a fire.
Once in warm shelter, you can just let frostbitten parts thaw naturally or assist the process by putting them in lukewarm or tepid water. Be prepared for some discomfort; thawing out a frostbitten part is often more painful than getting the frostbite. Do not use hot water; this both increases the pain and risks further injury to the skin. Consider having a glass of or some such to dull any pain that may appear. You should always seek medical attention if a deep frostbite is suspected.
Hypothermia is overall reduced body temperature. It will lead to loss of initiative, sluggish thinking and irrational behaviour. Keeping on walking even when tired is important, not only to reach shelter, but also to keep warm. If you are trying to assist a hypothermia victim, you can get them to come with you provided they are still on their feet, but getting somebody to rise and start walking is much more difficult. In severe cases it is important to keep the victim at rest and to warm the victim slowly, without massaging, because cold blood from arms and legs can cause vital organs to fail. A person unconscious from hypothermia may appear dead, as heartbeats and breathing become slow and faint, but some have survived even very low body temperatures.
Sensitivity is highly variable between individuals: people with particularly good peripheral circulation may feel perfectly comfortable in -20 °C with thin gloves and a single-layer jacket, while others may need mittens on gloves and multiple layers of clothing. The elderly and the disabled and children are more vulnerable to frostbite and hypothermia. Another factor is how used you are to cold environments.
Related risks
Yaktrax to walk on ice - Slip prevention footgear for the backcountry
Where there is cold weather and there is snow and ice, which in themselves can pose some risks.
The most common cause for accidents in winter is slippery roads, pavements (sidewalks) and especially steps. At a minimum, you need footwear with suitable soles. Summer shoes are very slippery on ice and snow, even some winter boots are deficient. The pattern should be deep enough, 5 mm (1/5 inch) or more, and the material soft enough in cold temperatures. Some boots have studs and there is studded add-on equipment for slippery conditions, suitable for most shoes and boots, for the heels or heels and sole. Heels should be low and wide. Sand, gravel or salt (calcium chloride) is often scattered on roads or paths to improve traction.
In slippery conditions it is generally advisable to do a "penguin walk" with very short steps rather than the longer stride used in other circumstances. This reduces the tendency to slip because there is less horizontal force where the foot meets the ground. Also, if one foot does slip, your chances of recovering without a fall are better because your center of gravity is more nearly above the leg that still has traction. If you manage to put down your feet gently, with no sudden force in any direction, you can use nearly normal strides, but that strategy requires quite some concentration.
Snow safety
- See also: Snow safety
Even moderate snowfall – or wind causing snow to fly around – will reduce visibility substantially. It will also cover your trail in little time. In open landscape, like on mires, lakes and fell heaths, you will need some way to keep a course accurate enough to find shelter. Really thick snowfall can make it difficult even to find the route across a yard.
The snow will often hide dangers, such as cracks in the ice and clefts in the rock, or give the impression a cliff extends farther than it does.
In mountainous terrain avalanches are a real risk. Always use local warning services.
Even in town, falling ice or snow can be a serious danger. In particular, icicles may come off the edge of a roof and hit pedestrians below, and a heavy chunk of ice dropping several storeys is easily fatal. Note that ice sliding off the roof will hit the ground quite some distance from the wall, avoiding falling icicles is not enough. Sometimes you can identify both danger zones, keep clear.
Ice safety
- Main article: Ice safety
Québec-LacBeauportGelé - Ice skating|Skating in Quebec
The frozen sea, lakes and rivers may be inviting. A number of activities on frozen bodies of water – skating, snowmobiling, ice fishing and ice boating – are fairly common. During prohibition, bootleggers even ran truckloads of booze from Canada into the US across the frozen Saint Lawrence; those were quite heavy but reasonably safe with two meters of mid-winter ice. However, always seek knowledgeable local advice on which areas are safe. The ice may be thin or otherwise unreliable in some areas, even when thick in general. If the ice breaks, it is hard or imfeasible to get out without tools or assistance. Purpose-designed ice climbing picks, worn on a sling around the neck, are sold to ice fishers.
There may also be substantial dangers from the sheer speeds involved in some modes of moving. An ice boat is far faster than a normal sailboat, because of the low friction, and a good skater is much faster than a runner, but if you fall, ice is as hard as concrete. Skiers and snowboarders do not have to worry about the hardness of ice, but they also move fast enough that any mistake can cause serious injury.
Most importantly...
Have fun! Cross country skiing|Skiing, snowmobiling or snowshoeing in an Arctic night, with northern lights shining, is an unforgettable experience. Furthermore, whole modern societies live and work in cold climates, including children and the elderly, and the disabled. Winter or snowfall is barely an obstruction, with life in the society continuing normally. Just prepare with good clothing, do not be foolish, and take the simple precautions needed.
See also
- Next-to-imfeasible destinations
- Winter sport
- Winter driving
- Winter in North America
- Winter in the Nordic countries