31 Aug 2022 | 02:51 PM UTC
US: Adverse weather forecast across parts of Texas through at least Sept. 3
Heavy rainfall forecast across parts of Texas, US, through at least Sept. 3. Possible flooding and disruptions.
Event
Heavy rainfall and thunderstorms are forecast across parts of Texas through at least Sept. 3. The heaviest rainfall is expected to occur in western and some central parts of the state over the coming days; however, the northern panhandle and far southern parts of the state are the only areas not expected to be impacted by the showers and storms. Intense downpours could result in floods and flash floods.
As of early Aug. 31, the National Weather Service (NWS) has issued flood and flash flood watches and warnings across parts of western and south-central Texas. The NWS's Weather Prediction Center (WPC) has warned of a "Moderate Risk" (Level 3 on a four-tier scale) of excessive rainfall in western parts of the state close to the Mexico border through early Sept. 2. There is also a "Slight Risk" (Level 2) of excessive rainfall for parts of western Texas through early Sept. 3, for many central areas Aug. 31-Sept. 1, and east-central areas Sept. 1-2. Officials could update and possibly extend the coverage of weather alerts over the coming days.
Hazardous Conditions
Sustained heavy rainfall could trigger flooding in low-lying communities near rivers, streams, and creeks. Urban flooding is also possible in developed areas with easily overwhelmed stormwater drainage systems. Sites located downstream from large reservoirs or rivers may be subject to flash flooding after relatively short periods of intense rainfall. Landslides are possible in hilly or mountainous areas, especially where heavy rainfall has saturated the soil.
Authorities could issue mandatory evacuation orders for flood-prone communities over the coming days and tornado warnings advising the public to shelter in place. Disruptions to electricity and telecommunications services are possible where severe weather impacts utility networks.
Transport
The severe weather will likely contribute to transport disruptions throughout the region. Floodwaters and debris flows could render some bridges, rail networks, or roadways impassable, impacting overland travel in and around affected areas. Ponding on road surfaces could cause hazardous driving conditions on regional highways. Authorities could temporarily close some low-lying routes that become inundated by floodwaters.
Severe weather will also likely trigger flight delays and cancellations at airports across Texas. Flooding could block regional rail lines; freight and passenger train delays and cancellations are likely in areas that see heavy rainfall and potential track inundation.
Localized business disruptions may occur in flood- or tornado-hit areas; some businesses might not operate at full capacity because of damage to facilities, possible evacuations, and some employees' inability to reach work sites.
Advice
Monitor local media for weather updates and related advisories. Confirm all transport reservations and business appointments before travel. Make allowances for localized travel delays and potential supply chain disruptions where flooding has been forecast. Do not drive on flooded roads. Review contingency plans and be prepared to move quickly to shelter if tornado warnings are issued. Charge battery-powered devices in the case of prolonged electricity outages.
