WALTONVILLE – The nation's widest drought in decades is spreading, with more than half of the continental United States now in some stage of drought and most of the rest enduring abnormally dry conditions.

Only in the 1930s and the 1950s has a drought covered more land, according to federal figures released Monday. So far, there's little risk of a Dust Bowl-type catastrophe, but crop losses could mount if rain doesn't come soon.

In its monthly drought report, the National Climatic Data Center in Asheville, N.C., announced that 55 percent of the country was in a moderate to extreme drought at the end of June. The parched conditions expanded last month in the West, Great Plains and Midwest, fueled by the 14th warmest and 10th driest June on record, the report said.