On the night the deadly floodwaters raged down the Guadalupe River in Texas, the National Weather Service forecast office in Austin/San Antonio was missing a key member of its team: the warning coordination meteorologist,

A new report has found that officials in Kerr County, Texas, did not use technology that would have sent lifesaving emergency messages to everyone in the vicinity of the Guadalupe River as it flood 4.

When the National Weather Service Office issues a flood watch, or a flash flood watch, the forecast has the potential for rainfall of one inch per hour or repeatedly over a span of a few or many hours. These locations indicated by the watch should be aware of their locations and surroundings regarding the flooding potential.

Through the rest of the evening on Sunday, the NWS is predicting a level two of four (slight) risk of storms across the majority of South Central Texas. Rainfall amounts of two to four inches is expected, while some areas could see pockets of nine to 12 inches of rainfall in certain regions.

Heavy rain caused flooding issues in Ames and rotation was observed in clouds around the Iowa Speedway in Newton as the area was under a tornado warning. All watches and warnings have expired for central Iowa, but major flooding continues in some eastern Iowa communities after heavy rain and possible tornadoes.

Boston is in for a muggy humid, hot week, according to National Weather Service forecasts, with more flooding possible as the week goes on.

More questions are emerging about the National Oceanic and Atmospheric Administration's role before deadly floods swept through parts of Central Texas. CBS News' David Schechter reports.

People living in flood-prone areas along parts of the East Coast were told to be ready to act if flooding intensifies.