Texas City Emergency Management

TCOEM: Valero will be sounding their internal siren system as part of a drill tonight at 7:00 pm.

They will also sound them tomorrow night at 7:00 p.m. and again on the 19th at 7:00 p.m.

Update 9:15 p.m.: Gas leak has been stopped. 36th Street is now open.

Gas leak - 36th street between Cherry and 2100 block of 36th st. Is blocked off.

You may hear sirens for the next few minutes, as Air Products conducts testing of their ammonia sirens today (Friday, Sept. 5) from 9:15-9:30 a.m.

Air Products will be doing some local alarm testing today for some newly installed area detectors in the ammonia plant. The testing should start between 9:00am -10:00am today.

8/29/2025 3:17 p.m.

The lockdown has been lifted at TCHS and Texas City ISD is now beginning dismissal. Students and staff are safe. More details will be forthcoming.

Thank you for your patience and support.
___________________________________________________________

UPDATE: 8/29/2025 2:58 p.m.

TCISD is still in the process of clearing rooms and officers are stationed at all doors. These are standard procedures during a lockdown.

Students and staff remain safe inside the school. TCISD will notify parents as soon as they are preparing for dismissal.
____________________________________________________________

UPDATE: 08/29/2025 2:54 p.m.

At this time, Texas City ISD does not believe the reported threat to be credible. However, officers from multiple agencies are conducting a full sweep of the building out of an abundance of caution.

Students and staff are safe inside the school. Students will not be released until the building has been cleared. Texas City ISD will announce when dismissal is ready.

__________________________________________________________

Lockdown at Texas City High School
8/29/2025 2:33 p.m.

Texas City High School is currently on lockdown as police investigate a reported threat to the school. All students and staff are secure inside the building.

Please do not come to the school at this time. Law enforcement is checking the facility.

Texas City ISD will continue to share updates as soon as more information is available.

****UPDATE****
*****10:35PM Update South Loop is open. Monitoring shows no detections, and Valero reports stable operations. Air monitoring confirms no hazardous conditions, and the incident has been downgraded to Level 1A.*****

We are aware of an upset at the Valero facility. Texas City Emergency Management, in coordination with partner agencies, is actively monitoring the situation. Air monitoring is currently in progress.

As a precaution, FM 519 to 605 S Loop is temporarily closed.

We will continue to provide updates as new information becomes available.

Update: Valero is experiencing an upset, higher than normal emissions of SO2. Actively Air monitoring in the community with negative response on air monitors as of now 6:45pm portions of the S Loop have been closed out of precaution.

8:56PM Update: Valero is reporting conditions are improving, at this time, there is no need for a citywide notification or siren activation, as monitoring confirms there is no hazardous impact to the community. Valero is reporting decreasing emissions; we are continuing to conduct air monitoring alongside Valero and CTEH.

10:35PM Update South Loop is open. Monitoring shows no detections, and Valero reports stable operations. Air monitoring confirms no hazardous conditions, and the incident has been downgraded to Level 1A.

For situational awareness please utilize this tool for updates:

Experience

You may notice some military aircraft activity in the area over the next few days. The U.S. Army Special Operations Aviation Command is conducting training in and around Texas City and Galveston County.

This exercise is not related to any emergency and has been fully coordinated with local officials. Safety measures are in place to protect both service members and the community. Thanks for your understanding as this important training takes place!

As you head out to celebrate today and tomorrow, be sure to check the US National Weather Service Houston-Galveston Texas page for any updates. The forecast is looking mostly sunny, but there’s a small chance of a few pop-up showers or storms in the afternoon, but nothing that should spoil the fun!

Today & July 4th: Highs near 90°, but it’ll feel more like 103–104° with the heat index. Stay cool, drink plenty of water, and take breaks in the shade when you can.

The rest of the weekend brings similar temps with a mix of sun, clouds, and slight chances of afternoon storms.

Stay safe, enjoy the holiday, and don’t forget the sunscreen!

For the latest forecast, visit: https://www.weather.gov/hgx/

****2:14PM SHELTER IN PLACE LIFTED****

***LONG SIREN BURST SIGNALED FOR ALL CLEAR***

SHELTER IN PLACE ISSUED - ***LIFTED AT 2:14PM UPDATE***

We are continuing to conduct air monitoring and working with Marathon and our stakeholders.

Texas City Hazard Conditions Board:
https://experience.arcgis.com/experience/1c0d65e303404397b2ba6ed28e073c04

****2:14PM SHELTER IN PLACE LIFTED****

***LONG SIREN BURST SIGNALED FOR ALL CLEAR***

SHELTER IN PLACE ISSUED - ***LIFTED AT 2:14PM UPDATE***

A shelter in place has been ordered for 29th to Bay St **UPDATE 1:24PM***

Please take the following actions immediately:

Go indoors and stay inside.

Close all doors and windows.

Turn off air conditioning or heating systems.

Stay tuned to official channels for updates.

We are actively monitoring the situation and will continue to provide updates as more information becomes available.

TCOEM

***Please sign up for alerts at mytcalerts.com***

Shelter in place has been ordered out of precaution due to the smoke settling in the city. TCFD on scene at Marathon, both Marathon and TCFD have deployed air monitoring around the city.

Fire under control, for now, no traffic east of 29th.

❗️Shelter in place ❗️ Out of an abundance of caution, a shelter in place has been issued from Hwy 146 to Bay Street.