#Drought news: Improvements in the Four Corners, E. #Utah and W. #Colorado

Click on a thumbnail graphic to view a gallery of drought data from the US Drought Monitor.

Click here to go to the US Drought Monitor website. Here’s an excerpt:

SummaryAn active pattern has continued with general ridging over the West and a trough digging in through the central and eastern United States. During the past week, a strong surface low developed in the Southwest and tracked through the central Plains into the Midwest and finally the Northeast. Abundant precipitation was recorded and snow totals in the Rocky Mountains were good. With the cold air dropping in behind these storms, most of the eastern half of the country has remained colder than normal while the West has been warmer than normal…

High Plains

Temperatures were mixed in the region, with the eastern portions of the region recording temperatures up to 12 degrees below normal while the western portions were 3-6 degrees above normal. With an active storm pattern, much of the region recorded precipitation, with the greatest amounts over the plains of Colorado, North Dakota and South Dakota. Because of the pockets of dryness still over portions of eastern Colorado and the Dakotas’ mainly being long-term issues, no changes were made this week…

West

Much of the West recorded above-normal temperatures for the week with most areas 2-6 degrees above normal. The warmest temperatures were in eastern Oregon, southern Idaho, and eastern New Mexico, with departures of 6-8 degrees above normal. It was a wet week over the region as most areas recorded above-normal precipitation. The wettest conditions were in northern California and into southwest Oregon, where departures were 4-6 inches above normal. The higher elevations also received ample snow, with most SNOTEL locations in a normal to above-normal range. The exception to this is in western Oregon and Washington, where snow is still lagging. The basins that have the greatest snow water equivalent (SWE) values for this time of year are in Colorado, Utah, Nevada, Arizona and New Mexico.

Widespread improvements were made to the exceptional and extreme drought conditions in the Four Corners regions this week. In the short term, snowpack is steadily building and indicators are showing improvement. How these short-term improvements manifest into relief from long-term impacts remains uncertain until the spring snowmelt season begins. There are still many impacts being experienced and even though improvements were shown, this drought situation is still quite serious, with large hydrologic deficits and major ecological damage which will take much longer to recover from.

Improvements were made to the severe drought conditions in Utah and into western Colorado. Farther south, moderate drought was improved in Arizona, southern Nevada, and southwest Utah. Severe drought conditions were removed from western Arizona and southern California as well as the coastal regions of southern California. In the north, the eastern portions of both Oregon and Washington have had good precipitation and enough to show improvements to the extreme drought in eastern Oregon and the moderate drought and abnormally dry conditions over eastern Washington…

South

Warmer than normal temperatures dominated the region with departures in west Texas 6-9 degrees above normal. It was a mainly dry week over the area, with just portions of eastern Oklahoma, Arkansas and into Louisiana recording above-normal precipitation with departures of up to 0.50 inches above normal. With the continued dryness in south Texas, some new areas of abnormally dry conditions were added this week with an expansion of moderate drought in far south Texas…

Looking Ahead

Over the next 5-7 days, the eastern United States has the greatest potential for precipitation, with the greatest amounts over the Southeast and into southern Florida. The northern United States also should see precipitation from the northern Rocky Mountains into the Great Lakes and New England. Temperatures look to remain colder than normal over the Midwest with departures of high temperatures of up to 20 degrees below normal. Warmer than normal conditions are expected over the West with high temperatures 3-6 degrees above normal.

The 6-10 day outlooks show that temperatures are likely to remain colder than normal over most areas east of the Rocky Mountains, with the greatest likelihood of below-normal temperatures over the Great Lakes and Tennessee Valley regions. Areas along the west coast and also in Alaska are anticipated to have the best chances of above-normal temperatures. The highest probability of below-normal precipitation is along the west coast and into the Southwest and southern Plains while Alaska, the northern Plains and much of the coastal areas of the East have the greatest chances of above-normal precipitation.

US Drought Monitor one week change map through January 22, 2019.

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