- Today’s Excessive Rainfall Outlook has been upgraded to a Moderate risk (level 3 of 4).
- The Flood Watch has been expanded to include: Grimes, Montgomery, Austin, Waller, Harris, Fort Bend, Brazoria and Galveston Counties.
Overview
Additional rounds of showers and thunderstorms are expected today, increasing the potential for localized flooding. Some key points are:
- Rain, heavy at times, and storms will continue to develop and increase in coverage through the morning and early afternoon hours.
- Additional rainfall amounts of 2 to 4 inches are expected with isolated higher amounts of 4 to 6+ inches possible.
- The main concern is the potential for flash flooding and river flooding given heavy rainfall, the potential for training storms and that grounds are already saturated from previous rainfall over the past few days.
- The Weather Prediction Center places most of our region with a Moderate (level 3 of 4) and Slight (level 2 of 4) risks of Excessive Rainfall today.
- A Flood Watch remains in effect through 7PM this evening.
- Rain and storms should gradually taper off late this afternoon through early this evening.
- Some rivers and creeks are near or already above flood stage. Visit this website to learn more about your local rivers and creeks.
- There is a high risk of rip currents along all Gulf facing beaches through this evening.
Urban Flash Flood Messaging
Heavy rainfall is forecast for portions of Southeast Texas, including highly urbanized areas like the Houston metropolitan area. Based on forecast conditions, NWS Houston will be utilizing the following urban flash flood messaging for this event:
Street Flooding
– Drive with caution. Cars may flood in low-lying areas. Ponding on roadways may increase risk of hydroplaning.
– Pay attention to the weather. Monitor the NWS, your local media, HCFCD and other official weather information sources.
– Rain may move repeatedly across the same area, causing a rapid rise on creeks and bayous. However, creeks and bayous are not likely to exceed their banks.
