Overview
- The broad low pressure consolidated into what meteorological services are calling Potential Tropical Cyclone One near the Texas–Tamaulipas border on Tuesday, producing widespread showers and sustained winds near 45 km/h with gusts to about 65 km/h.
- Forecasters in the U.S. and Mexico predict multi-day, very heavy rainfall with totals of roughly 75–150 mm in parts of Nuevo León and Tamaulipas and 10–17+ cm along parts of the Texas and Louisiana coast, raising high flash-flood risk.
- Local emergency crews have already carried out multiple water rescues in central and southern Texas and authorities reported at least one fatality in Tamaulipas after weekend river flooding.
- The National Hurricane Center, Mexico’s SMN and Conagua continue active monitoring and have issued flood watches, coastal advisories and public safety warnings for residents to avoid flooded crossings and follow official updates.
- Most models show uncertainty about short-term tropical development so impacts will depend on how far the low moves over Gulf waters; residents should expect rising rivers, road closures and elevated seas and watch for rapid forecast changes over the next 24 to 48 hours.