As expected, the National Weather Service has issued a flash flood watch for the greater Houston metro area from noon Tuesday through Wednesday afternoon.
The National Weather Service forecasts rainfall amounts of 3 to 7 inches for most areas, with isolated totals of up to 10 to 12 inches possible. The main time of concern remains Wednesday morning.
Given that rains won’t likely start until the afternoon, why does the Flood Watch begin at noon? I understand coastal flooding can occur with the water getting pushed up by the winds, but would think the start of the Flood Watch for inland areas would be more closely aligned with the arrival of the heavier rains. Am I missing something? Is the flooding set up earlier by rains upriver/up-bayou?