The heaviest precipitation fell in the northwestern and southeastern parts of the country. Washington and Oregon’s higher elevations recorded 1.5 to locally 8 inches, with 2-4 inch totals reported in northwest Montana, north Idaho, and parts of eastern Washington and Oregon.
On the other side of the country, Tropical Storm Eta dropped heavy rains in southern Florida. Amounts between 5-10 inches soaked parts of the greater Miami area. Meanwhile, moderate precipitation —with locally heavy amounts in the higher elevations— fell in association with the Pacific Northwest storm as it moved eastward. In general, precipitation totals (and drought relief) generally increased, moving north and west away from southern California and the southern Rockies.
Most higher elevations, in addition to a broad area across Montana, received at least 0.5 inch. East of the Rockies, moderate precipitation of 0.5 to locally 2.5 inches covered a swath from the central Great Plains northward through the upper Mississippi Valley and western Great Lakes. Similar amounts fell on a small area in the Louisiana Bayou, but little or no precipitation fell across the rest of the central and eastern United States.
The High Plains and lower elevations of the southern Intermountain West and Rockies also recorded no more than a few tenths of an inch. Above-normal temperatures broadly dominated the Nation from the Intermountain West eastward to the Atlantic Coast. Temperatures averaged 10-18 F above normal from the southern High Plains northward and eastward through the Great Plains and Great Lakes Region. Slightly below-average temperatures were restricted to the western tier of states.
The Pacific storm dropped significant, widespread precipitation on Washington and Oregon areas northeastward through the northern tier of Montana.
Improvement was introduced in much of this region, although D2 to D3 conditions remain in central and southern Washington and large areas of Oregon south of the immediate Washington border. Farther south, scattered light precipitation fell on lower elevations while moderate to isolated heavy precipitation dotted the higher mountains.
Amounts were insufficient to bring improvement anywhere to south and east of northern Oregon, and conditions deteriorated in northern California and much of a broad swath from southwestern California eastward across New Mexico.
Severe drought (D3) now covers most of Nevada and the Four Corners States. Broad sections of D4 persisted or expanded in east-central Nevada, much of central and southern Utah, north-central and south-central Arizona, and portions of northern and eastern New Mexico.
The High Plains
Moderate to heavy precipitation brought some improvement into eastern Nebraska, and small sections of southeastern South Dakota, but drier conditions farther west allowed dryness and drought to persist. Some deterioration to D1 was brought into a small area in south-central South Dakota, and D2 was expanded northward through much of north-central North Dakota. Across the vast majority of the region, dryness and drought remained virtually unchanged from the previous week.
Now, a few areas of D1-D2 extend from northern Kansas northward through the Dakotas, with a small area of extreme drought assessed in southeastern South Dakota. Across Wyoming and Colorado, protracted and entrenched drought continues. Western Nebraska, most of Colorado, and the central tier of Wyoming are covered by extreme (D3) drought. The most intense drought classification (D4, exceptional drought) was common across Colorado’s western half.
Light to moderate rain fell on much of Louisiana, but the rest of the region was warm and dry. As a result, dryness expanded in parts of Oklahoma, and a few patches of D0 began to dot the lower Mississippi Valley.
More significantly, dryness and drought broadly intensified across Texas south of the Panhandle. Conditions are abnormally dry or worse across much of the state. Areas of D1 and a few patches of D2 were brought into parts of central and eastern Texas, while severe to exceptional drought is common in central Texas and the state’s western tier.
Broad patches of D4 exceptional drought now cover much of the Big Bend and along the New Mexico border. Farther north, little change was noted across Texas and Oklahoma’s Panhandles, and near the Red River Valley. — UNL Drought Monitor