Yumatief
The Yuma Low is a summer low pressure area that forms in the southwest of the United States and northwest of Mexico and is named after the small town of Yuma in the Colorado Valley on the US-Mexico border.
In the summer months the irradiation in the intramontane area of North America is very high and the humidity is low. The strong warming leads to convective air mass movement and a dry heat depression develops in the area of the lower Colorado valley . The low-pressure area is mostly filled with air masses from the north and west, but even these do not bring any weather changes , since the intermontane areas are always in the lee of mountain ranges and the incoming air creates a stable air stratification . Occasionally, the Yuma Low sets off an American monsoons flowing far west .
The result is mostly dry and hot summer months. Yuma even boasts of being the place with the most hours of sunshine in the world at 95% . The average temperatures in summer regularly exceed the 30 ° C mark.
Web links
- Climate diagram of Yuma, Arizona