Eyes to the skies could be wise this weekend as a storm is expected to develop in the middle of the country. The Storm Prediction Center in Norman, Okla., says high winds and perhaps tornadoes could be possible Saturday in a broad area from Dallas to Minneapolis. The risk area is large because of uncertainty on where storms may hit. A cold front and low-pressure system should cross the region and storms are likely if it meets humid air. The highest threat is from Kansas and Missouri northward.