Dec. 11 WAOB Weather SummaryDec 14, 2012
All graphics courtesy of USDA, NOAA, Department of Commerce
Pacific storms brought some additional rain and snow to California and the Northwest, culminating a period of unsettled weather that began in late November. As the week progressed, dry weather returned to California, while a few showers lingered across the Northwest.
Farther east, mild, dry weather prevailed for much of the week on the Plains, maintaining severe stress on pastures, rangeland and winter wheat. Toward week’s end, however, snow began to overspread the northern Plains. In Montana and the Dakotas, the late-week snow provided winter grains with highly beneficial moisture and insulation.
Meanwhile, frequent showers occurred from the western half of the Gulf Coast northeastward into the lower Great Lakes region. Some of the heaviest rain, locally 2-4 in., fell along the central Gulf Coast and in the middle Ohio Valley.
In contrast, mostly dry weather persisted through week’s end in the Southeast, except for a few showers in southern and eastern Florida. Although the Southeastern dryness favored late-season fieldwork, drought continued to gradually expand and intensify. During the first full week of December, late-season warmth prevailed nearly from coast to coast.
Warm conditions were especially prevalent between the Rockies and Appalachians. In fact, weekly temperatures averaged more than 15° F above normal in a broad area centered on the Midsouth.