Weather predictions, based on observation and mathematical modelshelp forecast the state of the atmosphere at a given time and location based on various relationships such as temperature, humidity, pressure, precipitation or wind.
Weather forecasts are practices that have been carried out for hundreds of years, even before the Christian era, based basically on the observation of cloud patterns, the wind, the time of year, although initially these they were unsuccessful.
It was not until the emergence of new technologies (such as computers) that mathematical models began to be put into operation that made it possible to achieve more accurate predictions, becoming a fundamental factor for the transportation (by land, sea or air), agriculture, tourism, disaster prevention, public health and even military operationsbeyond deciding whether or not to carry an umbrella or what outfits to put on.
Below is the state of the weather for the next few hours in Washington DC:
During the day temperature it will reach a maximum of 20 degrees, the probability of rain it will be 25%, with a cloudiness of 54%, while the wind gusts will be 45 kilometers per hour.
As for ultraviolet rays, they are expected to reach a level of up to 3.
For the night, temperature will reach 8 degrees, while the precipitation forecast It will be 0%, with a cloudiness of 31%, while the wind gusts will reach 27 kilometers per hour during the day.
Washington DC is the capital city of the United States, located in the northeast of the North American country, along the Potomac River, surrounded by the states of Maryland and Virginia.
The climate in the US capital is mainly tropical, with the monsoonal subtypewhich means that it is warm all year round, with a small dry season and a predominantly rainy season.
The hottest temperatures they are felt in July, where it is around 40 degrees; in contrast it is in January and February when cold weather prevails to the point of reaching zero degrees.
By occupying a large extension of territory, the United States reports a great variety of climates, almost all of them.
On the eastern side of the United States Two central climates predominate: the humid subtropical and the humid continental.
In the American Northeast the most predominant climate is the humid continental which is characterized by constant rains throughout the year that become storms during the summer and snowfalls throughout the winter.
In the southeastern United States the prevailing weather condition is humid subtropical it has warm summers, cool winters and abundant rainfall.
American west sidethere are at least three major predominant climates: semi-arid, arid and Mediterranean.
The semi-arid climate, in its cold subtypeencompasses the most central western and north–south part of the United Statesis characterized by low rainfall and low temperatures.
In the southwestern United States is where it is present arid climate, both in its cold and warm subtypes. In the cold arid, the winters are icy and the summers are mild, while in the hot arid the summer registers extremely high temperatures and in the winter the weather is mild. In both cases rainfall is scarce.
Mediterranean climate registers in the most coastal area of the American West, from north to south and is characterized by its mild and rainy winters, plus its dry and hot summers.
