While eastern U.S. has cold and unsettled weather, dry and warm weather continues in the U.S. West. Over 60% of the U.S. West is experiencing extreme drought.
We typically associate drought conditions in the summer months, when some areas receive barely any rain and the heat of the day helps evaporate the moisture out of the soils.
While the eastern half of the United States is experiencing cold and unsettled weather, dry and warm weather continues in the U.S. West. Over 60% of the U.S. West is experiencing extreme drought conditions, with nearly 60% of California in an extreme drought.
The forecast as of January 18, 2014 continues to show high pressure sticking around the U.S. West coast for several days. Drought conditions are expected to continue to worsen with no relief in sight.
Many problems have developed over the past month as drought conditions worsen in the U.S. West. Cattle are being sold because farmers are unable to provide enough water to hydrate them.
Winds and dry conditions are fueling wildfires across the region, including the Colby Fire in the foothills northeast of Los Angeles. Ski resorts remain closed thanks to very little snow across the higher elevations in the Sierra Nevada. If this pattern continues, with minimum snowfall across the western mountains, millions of people will be affected with possible water shortages.
The snowpack plays a critical part in what is one of the world’s most sophisticated and complex water delivery systems, supplying water to more than 25 million people and the $44.7 billion agricultural industry.
The snow that piles up on the Sierra Nevada’s 400-mile range during the winter acts as a reserve that starts to melt in the spring. The melting snow drains into rivers that feed reservoirs below, providing water to densely populated communities hundreds of miles south in Southern California.
The weather across the United States has been locked into a persistent pattern. This pattern has not budged much, and it is keeping the west coast dry and warm.
Bottom line: Drought will continue to worsen as high pressure remains over the same areas. Nearly 95% of California is under drought conditions with over 60% experiencing extreme drought conditions.
Over 60% of the U.S. West coast is under a moderate drought or worse. The drought is hurting the economy as water demands increase, ski resorts remain closed, and food prices possibly going up.
Source | earthsky.org