We continue to anticipate a period of heavy rainfall this evening into Sunday morning as a cold front moves through the area. In general, the highest rainfall totals (2-4″) will occur north of I-10 with some locally higher totals of 5″+ possible. For locations south of the I-10 corridor, rainfall totals will generally remain 1″ or less.
- The latest model data continues to highlight the potential for a swath of heavy rain for locations to the north of the I-10 corridor.
- Forecast confidence continues to increase, regarding both rainfall amounts and the location of the heaviest rainfall.
- A Flood Watch may be issued later today prior to the arrival of heavy rain.
- Please see the attached PDF for more information.
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.
“Turn Around, Don’t Drown” Flash Flooding
– Turn Around, Don’t Drown. Isolated underpasses or low-water crossings may be life-threatening.
– Monitor the NWS, your local media, HCFCD and other official weather information sources.
