070319 504 Despite earlier predictions of dry weather, rain and hail could threaten Sioux City-area Fourth of July celebrations tomorrow. The National Weather Service in Sioux Falls says strong winds and hail are possible tomorrow night with thunderstorms possible in the afternoon. The Sioux City area could be in a "pattern" of thunderstorms over the next several days. The amount of water flowing into the lower Missouri River will remain high throughout the summer and fall, and that water will