California and National Drought Summary for November 21, 2017 and 10 Day Weather Outlook
Between 2 and 4 inches fell from central and eastern Illinois eastward across central and northern sections of Indian and Ohio, Michigan, and northwestern Pennsylvania, and similar amounts were more isolated across the higher elevations of the northern Idaho Panhandle, south-central Idaho, western Wyoming and adjacent areas, and a few scattered areas in northern sections of Nevada and Utah.
Light to locally moderate precipitation was not enough to change things in the Northeast, and while very little precipitation fell on the mid-Atlantic region, cooler weather kept significant deterioration at bay.
As a result, short-term dryness continued to intensify at a fairly rapid clip, particularly from central Arkansas and adjacent Oklahoma southward.
This brought an end to the small area of moderate drought in western Indiana, and eliminated abnormal dryness in northeastern Ohio and part of central Illinois.
Farther west, dryness and drought were unchanged in southeastern Iowa.
Northern Plains Very little precipitation fell on northern Minnesota, the Dakotas and the dry areas of Montana, but this is a dry time of the year climatologically for the region, so no substantial increase in precipitation deficits was noted, and last week’s depiction was not changed.
West In the northern Intermountain West, light to moderate precipitation fell on the D0 areas in southern Idaho and interior Washington, with only scattered light amounts reported across interior Oregon; however, despite this week’s unimpressive precipitation, impacts resulting from below-normal precipitation have gradually eased over the past several weeks, and all abnormal dryness was removed from the region.
Abnormal dryness was introduced in central Utah, leaving only the northwestern part of the state free from dryness.
Temperatures are expected to average at least 9 degrees F above normal across the western half of the 48 states, reaching as high as 20 to 24 degrees F in central and northern sections of the Rockies and High Plains, as well as the central Intermountain West.
Odds favor below-median precipitation in the Southwest, central and southern sections of the Rockies and High Plains, most of the Great Plains and Mississippi Valley from South Dakota and central Minnesota southward to the Gulf Coast, and throughout the Nation east of the Mississippi River, save part of the northwestern Great Lakes Region.