NEW : A second breach occurred in Holt County , Missouri . NEW : Earlier , a levee broke in Atchison County , Missouri . The flood could affect the town of Hamburg , Missouri . The Mississippi River could see near - record flooding this year .
NEW : A second breach occurs in Holt County , Missouri . NEW : Earlier , a levee broke in Atchison County , Missouri . The flooding could affect the town of Hamburg , Iowa . The Missouri River could see near-record flooding this year .