#Drought/#snowpack news: It was a dry week for the Nation as a whole, sorry #Colorado

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


It was a dry week for the Nation as a whole. Widespread heavy precipitation was restricted to the central and northern West Coast from the Cascades and northern Sierra Nevada westward. A few patches near the coast recorded 6 to 12 inches of precipitation. Across the remainder of the contiguous states, only a few small areas reported over 1.5 inches, with most locations observing little or none. As a result, short-term dryness continued to develop and expand across the south-central and southeastern U.S. as 30- to 90-day precipitation deficits continued to steadily increase, overcoming the wet weather that had squelched dryness impacts in much of these regions several months ago…

High Plains

Cold weather, accompanied by little or no precipitation, kept dryness and drought unchanged across the Dakotas and Montana, with extreme drought persisting in portions of western South Dakota and northeastern Montana…


Dryness continued to slowly improve east of the Cascades in Washington and Oregon, eliminating D1 in north-central Washington and restricting D0 to areas recording less than 1.5 inches of precipitation during the past 30 days. Farther south, no measurable precipitation has fallen for at least the last 30 days on the central and western Four Corners States, Nevada, and the southeastern half of California. This is not unusual here in late autumn, and while notable impacts are lacking, increasingly impressive dryness over the past few months induced some D0 expansion in southeastern Monterey County, CA and in the drier areas of southwestern Utah, southeastern Nevada, and part of southeastern California…

Looking Ahead

During the next 5 days (November 16-20), Moderate precipitation at best is expected for most of the country. Amounts of 0.5 to locally approaching 2.0 inches are expected in the Northeast, the northern and central Appalachians, the eastern Great Lakes, and the central and northern sections of Ohio, Indiana, and Illinois. Farther west, more than 0.5 inch is forecast from the Sierra Nevada and the Cascades westward to the Pacific Ocean, with heavy amounts anticipated in the typical orographically-favored areas, specifically along the coast and on the windward (western) slopes of the mountains. Between 5.0 and 8.5 inches could fall on the Washington Cascades, northwestern Washington, the northwestern and west-central California Coast, and the Sierra Nevada. In addition, 0.5 inch or more is expected in some of the higher elevations of western Colorado, western Wyoming, central and north-central Utah, northeastern Nevada, and parts of Idaho. Isolated amounts of 2.0 to 4.5 inches could be dropped on the highest elevations and windward slopes.

During the 6-10 day period (November 21-25), odds favor above-median precipitation only across the Florida Panhandle, the northern Intermountain West, and the northern half of the West Coast States. Below-median precipitation is anticipated elsewhere except in the southern half of the High Plains, the northern Plains, most of the Great Basin, and the Southwest, where neither abnormal wetness nor dryness is favored. Warmer than normal weather is expected from the Pacific Coast eastward into the upper Mississippi Valley, the central Great Plains, and central Texas, with subnormal temperatures favored in most areas from the eastern Great Lakes and southern half of the Mississippi Valley eastward to the Atlantic Coast.

Westwide SNOTEL basin-filled map November 16, 2017 via the NRCS.

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