#Drought news: Far into the #monsoon season…the rains continue to fail in the Southwest, flash drought in #TX

Click on a thumbnail graphic below 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:

This Week’s Drought Summary

The United States is in the thralls of summer, and with that can come heat, flash droughts, and occasional, if not frequent, thunderstorm activity. Several areas of the U.S. experienced extreme heat this past week, particularly notable across much of the South and in the East. Parts of western Texas and eastern New Mexico were 6-10 degrees F above their typical averages, with little rainfall to speak of in much of the region. On the other hand much of the northern tier of the U.S. into the Upper Midwest was cool for this time of year, although precipitation amounts there were a mixed bag. In the Southwest, the North American monsoon continues to fail, worsening conditions in areas that had received more than ample precipitation over the winter and spring. To the north, south central Alaska continues to see record or near-record heat and dryness, and conditions are deteriorating quickly there, with severe impacts…

High Plains

Eastern Nebraska was fairly dry over the past week where the D0 is present. With little rainfall over the past month and a half, the D0 area was extended slightly north into Thurston and eastern Wayne counties. To the north, some beneficial rains fell across North Dakota over the last week; however, considering local crop impact reports, only the D0 area in the west central region was improved to normal. Unfortunately, the rains were not adequate enough for improvement across the northern tier of the state…

West

Far into the monsoon season, the rains continue to fail in the Southwest. Only the abundant precipitation that fell last winter is keeping substantial impacts at bay so far this summer. Even so, declining topsoil moisture and poor rangeland conditions through Mohave County, Arizona, are now being reported. Abnormally dry conditions (D0) were expanded nearby in central and north central Arizona through all of Yavapai County and most of Coconino County. It was also expanded southwestward into Riverside and Imperial Counties in California. Moderate drought (D1) was extended farther south in western New Mexico, and a small area was introduced to the south central part of the state at the Texas border. Abnormally dry conditions and moderate drought also crept into the far southeastern corner this week…

South

Aside from isolated and scattered rains, most of the area was very hot and dry, with daytime temperatures climbing to near or above 100 degrees F over portions of the region. Nighttime temperatures did not help alleviate the heat stress in places. Along the northern Gulf Coast, Galveston, Texas — which had never observed a minimum temperature above 85°F since its records began in 1874 — has recorded three to date this month: on August 8th, 12th, and again on the 18th. Overall, there was some drought relief in a few spots in the South, but mostly there was drought expansion across the area where changes were made this week. There is a flash drought in north central and northeast Texas, with some stations that are 10 inches above normal for the year, but 8 inches below normal for just the past two months. In eastern Texas, abnormally dry conditions (D0) were expanded across much of the area. Reported rainfall in areas was only 20 percent of normal. The D0 in far east Texas expanded eastward into extreme southwestern Arkansas where there have been reports of a sharp drop off in the green up along the interstate across southern Miller County, with some exposed areas browning quickly, and in northwestern Louisiana where reported precipitation at some stations has been just 50-70% of normal over the past two months. In Oklahoma, much of the southwest has seen less than 25% of its normal precipitation over the past two months, and less than 50% over the past three. Severe and moderate drought were expanded here and a couple of pockets of extreme drought (D3) were introduced to the west in the Texas Panhandle. In southeastern Tennessee near Chattanooga, abnormally dry conditions and moderate drought (D1) were each extended farther to the northeast. Over the past month there have been several periods of high temperatures leading to stress on vegetation and livestock…

Looking Ahead

Over the week beginning Tuesday, August 20, according to NOAA’s Climate Prediction Center, dry conditions are expected to continue across much of the western half of the continental U.S. Some heavy rain may fall over parts of the Midwest and Southeast, with as much as five inches in areas of southern Iowa, northern Mississippi, eastern Nebraska, and parts of the Carolinas. Southern Louisiana may see up to seven inches. Looking further ahead to August 25-29, below-normal temperatures are favored across parts of eastern Montana, the Dakotas, Nebraska, Kansas, Minnesota, Iowa, and Missouri, while above-normal temperatures are forecast for parts of the Southern Plains and the Southwest. There are enhanced probabilities of above-normal temperatures for most southern coastal locations of Alaska due to above-normal sea surface temperatures. Near to below-normal precipitation is possible for the west, although parts of Southern California may see above-average rainfall. Rainfall may be above normal across the central and eastern U.S., except for parts of the Northeast. Above-normal precipitation is favored across northern and eastern Alaska, but may be below-normal across southwestern mainland Alaska and the Aleutians, where drought conditions prevail. Please note the forecast confidence for this period is average, according to CPC.

US Drought Monitor one week change map ending August 20, 2019.