Search results
Results from the WOW.Com Content Network
On an average basis, eastern Pacific tropical cyclones contribute about one-third of the annual rainfall along the Mexican Riviera, and up to one-half of the rainfall seen annually across Baja California Sur. [45] Mexico is twice as likely (18% of the basin total) to be impacted by a Pacific tropical cyclone on its west coast than an Atlantic ...
Over the contiguous United States, total annual precipitation increased at an average rate of 6.1 percent per century since 1900, with the greatest increases within the East North Central climate region (11.6 percent per century) and the South (11.1 percent). Hawaii was the only region to show a decrease (−9.25 percent). [89]
Over the contiguous United States, total annual precipitation increased at an average rate of 6.1% per century since 1900, with the greatest increases within the East North Central climate region (11.6% per century) and the South (11.1%). Hawaii was the only region to show a decrease (−9.25%). [112]
The desert climate or arid climate (in the Köppen climate classification BWh and BWk) is a dry climate sub-type in which there is a severe excess of evaporation over precipitation. The typically bald, rocky, or sandy surfaces in desert climates are dry and hold little moisture, quickly evaporating the already little rainfall they receive.
Potential evapotranspiration supplements the measurement of precipitation in providing a scientific measurement-based definition of a desert. The water budget of an area can be calculated using the formula P − PE ± S, wherein P is precipitation, PE is potential evapotranspiration rates and S is the amount of
Moderate rain describes rainfall with a precipitation rate of between 2.6 millimetres (0.10 in) and 7.6 millimetres (0.30 in) per hour. Heavy rain describes rainfall with a precipitation rate above 7.6 millimetres (0.30 in) per hour, and violent rain has a rate more than 50 millimetres (2.0 in) per hour. [11]
An annual period of relatively low or infrequent precipitation, during which weather patterns are typically dominated by lengthy periods of high atmospheric pressure, high temperatures, and low humidity. The term is primarily used in the tropics, in contrast to the wet season. dry thunderstorm. Also heat storm.
Mesoscale convective systems bring 30 to 70 percent of the annual warm season rainfall to the Plains. [34] A subset of these systems known as mesoscale convective complexes lead to up to 10% of the annual rainfall across the Plains and Midwest. [35] Squall lines account for 30% of the large thunderstorm complexes which move through the region. [36]