Excessive Rainfall Expected in Texas & Louisiana
A stalled frontal system and multiple areas of low pressure, along with a vigorous upper level disturbance will create high rainfall totals across southeast Texas and southwest Louisiana through Monday afternoon.
Due to the additional rainfall expected overnight Sunday into Monday afternoon, there will be a moderate risk for excessive rainfall. In the wake of 3 to 8 inches of rain that fell on Saturday, rainfall rates will not be as intense overnight Sunday. Moderate rainfall rates perhaps exceeding a half inch an hour will exacerbate any ongoing surface runoff.
Overnight tonight into Monday, an additional 2 to 3 inches of additional rainfall will be possible. A flash flood watch has been issued for portions of Texas and Louisiana through Monday afternoon. Street flooding and flooding of low lying areas will be the most likely impact.
A few strong to severe storms are possible Monday afternoon into Monday night over southern portions of the Gulf Coast states. Damaging wind is the primary threat, although some hail may be possible in a few storms.