Harvey is stationary this morning across eastern sections of South-Central Texas. The majority of precipitation associated with Harvey is located to the east and north of the center of circulation. Most of Harris County received 15 inches of rain in a 3 hour period earlier this morning and late last evening. They had a relative break from the precipitation from 130 to 3 AM, but that break has come to an end. Heavy rain has filled in/developed to the south of Houston – between two intense bands of thunderstorms. This heavy rain is moving north and will impact Houston within the hour. Additional rainfall amounts of 2 to 4 inches an hour are expected. There has been a small reduction in street flooding in parts of Houston during the lull in the rain, but that will quickly reverse as heavy rains move back in. A Flash Flood Emergency Catastrophic Life-Threatening Is In Effect for all of Houston, Harris County, and surrounding counties through at least 6:30 AM.
We’ve been neglecting flooding issues outside of Houston simply because of the severity of Houston’s issues, but there is a significant flooding event ongoing across Bastrop and Caldwell counties this morning in Central Texas. Over a foot of rain has fallen in some parts of those counties and several areas are flooding. Rain will continue into the daylight hours and an additional 4 to 6 inches of rain may occur by the early afternoon hours.
Unfourtanitly it looks like very heavy rain will continue off and on through Monday. Weather models are not encouraging and depict an additional 5 to 10 inches of rain possible by lunch time across portions of not only Southeast Texas – but expanding northwest into the Brazos Valley. Lesser rain totals of 2 to 4 inches may occur in Central Texas. A few heavy showers may even make it to Interstate 20 in North and East Texas, although coverage would remain scattered.