CHICAGO, May 20 (Reuters) - Chicago Board of Trade wheat futures surged to a two-week high on Tuesday, as a weaker dollar and unexpected decline in U.S. crop ratings encouraged more short-covering after prices hit a five-year low last week, market analysts said.
CBOT July soft red winter wheat WN25 closed up 17 cents at $5.46 a bushel - with the most-active contract Wv1 touching the highest price seen since May 5.
K.C. July hard red winter wheat KWN25 ended up 13-1/2 cents at $5.36-1/4 a bushel, and Minneapolis July spring wheat MWEN25 rose 12-1/4 cents to $5.97-3/4 a bushel.
In a weekly report issued after Monday's close, the U.S. Department of Agriculture rated 52% of the U.S. winter wheat crop in good to excellent condition, down 2 percentage points from last week and below analyst expectations.
China's Central Meteorological Observatory had warned that dry, hot winds this week could damage winter wheat crops in major producing areas, including Henan - a key wheat-growing province known as the country's granary.