Normal barometric pressure is typically around 101.325 kPa / 1013.25 mbar / 760 mmHg / 29/921 inHg. Pressure rarely increases or decreases more than 1 inch of mercury (3.386 kPa / 33.86 mbar / 25mmHg) above or below the 30-inch mark unless the weather conditions are extreme.Know More
The highest ever recorded pressure on Earth was on December 31, 1968, at Agata Lake in Siberia, Russia when the weather conditions were clear and extremely cold at minus 50.8 degrees Fahrenheit. The recorded pressure was 108.38kPa / 1083.8 mbar / 812.92 mmHg / 32.01 inHg.
Many people suffer from migraines and headaches that are associated with rising and falling barometric pressures. Low air pressure means that there is less weight pushing down and the air is rising and cooling, which means that there are clouds forming. High air pressures means that there is more weight pushing down and so the air is sinking, which leads to less humidity and a warmer temperature. Falling barometric pressure is usually associated with either thunder in hot weather, wet weather, windy conditions or some kind of precipitation. Rising barometric pressure is usually associated with fairer weather and typically indicates that there will not be any storms that day. Clear skies are also associated with high barometric pressure.Learn More
Local wind patterns may be obtained from the local TV weather forecast. Because wind patterns change frequently, these weather broadcasts are often daily. Some examples of local winds include sea and land breezes.Full Answer >
Thailand's climate is tropical. As such, the weather is generally hot and humid for most of the year. The southern coastal regions have two seasons, a rainy season and a dry season, while the interior of the country has three: the cool season, the hot season and the rainy season.Full Answer >
Temperature affects air pressure by causing the air to either become more or less dense, which expands or lowers its pressure. Warm air is less dense than cold air, and as air becomes less dense, its pressure increases.Full Answer >
A fire weather warning is a forecast advisory issued by the U.S. National Weather Service to assist land management and fire-fighting agencies in the day-to-day assessment of fire danger. The warning includes current fuel moisture and critical weather conditions that can lead to or increase the probability of wildfire activity.Full Answer >