Winter is a harsh time, especially in the northern latitudes of our hemisphere. Its calendar time is known, but it often happens that the first signs of winter come much earlier. The slushy November weather is replaced by December frosts, which bind the reservoirs that put the earth in a fluffy snow blanket. The day becomes short, and the nights drag along in anticipation of the first ray of the sun.
The most common natural phenomena in winter:
The shortest day falls on the period of the Winter Solstice. This is December 21 at night on the 22. The shortest day and the longest night. From this time, the reverse report begins and daytime increases, reducing the night time.
The clouds drop lower, become heavy, gray from overcrowded moisture. They do not have lightness and accuracy, they cover the entire winter sky, filling the air with the smell of moisture and freshness. It is they who bring abundant snowfalls covering the earth with meter-long snowdrifts.
Snow is a winter precipitation. In winter, they cover everything around with a dense veil, creating a kind of microclimate that helps plants and small animals survive the harsh cold. The lower the air temperature, the looser becomes the snow floor, it crunches harder under your feet and is pricked when you touch it.
In windless weather, snow falls in large snowflakes, with increasing intensity snow turns into Snowstorm – the most formidable winter phenomenon of nature. It occurs when the first gust of wind occurs. He lifts the snow cover and carries it, dragging him along. In nature, distinguish between the upper and lower snowstorm, depending on the redistribution of air masses. As a rule, strong snowstorms occur in the middle of winter, at the peak of seasonal temperatures. It is from this phenomenon of nature that the formation of a snowy landscape depends: the snow blown by the wind takes on bizarre forms of snowdrifts.
A frequent companion of winter weather is the Ice. This is an ice crust that forms on any surface after a sharp temperature drop. Wet snow, rain before strong frost can provoke its appearance. As a rule, it is the icy ground that binds the entire area of small streams, other sources of moisture, so it does not have to rain for its appearance.
If there are severe severe frosts in winter, they bind the deepest ponds that freeze to very decent depths, so begins Ledostav. paralyzing navigation. Ice will only move if there is a strong
warming, when the rays of the sun begin to warm up its firmament.
Frosts are dangerous phenomena of nature. They can be installed for a long time if the district is dominated by a winter anticyclone. As a rule, anomalous frosts are a rare phenomenon. Deviation from the usual norm is not always and not always. Low temperatures can cause significant damage to agriculture and provoke the emergence of an emergency, so all utilities in winter are on alert.
Another indispensable attribute of winter is the icicle – a piece of ice of a cone-shaped shape that hangs from some plane. In the daytime the sun warms up the snow, it begins to melt and leak, and at night the frost intensifies, everything around freezes. The mass of the icicle grows as the snow melts, then it collapses from its own weight and crumbles from collision with the ground.
It is with the melting of icicles that a smooth transition to spring begins. when the temperature of the air gradually rises, the days become longer, and the frosty patterns disappear, seeping into the warmed ground by melt water.