The Serviço Nacional of The measure came into force at around 1:17 pm and remained in effect until 1:45 pm local time. The severe storm was moving northeast at 48 km/h and had a rotation capable of generating tornadoes.
Residents were immediately advised to seek shelter in internal rooms on the lowest floor of resistant buildings, away from windows. Pessoas in vehicles or outdoors were instructed to seek the nearest shelter and protect themselves from objects thrown by the wind.
Storm trajectory
The most dangerous cell was located over Cypress at 1:17 p.m. The radar indicated strong rotation towards nearby communities. The NWS reinforced the need for quick action, as tornadoes can form in minutes.
Favorable conditions persist
A tornado watch remains active until 7pm for several counties north of Houston and parts of Louisiana. The cold front advances through the southeast of Texas and maintains an unstable environment. Meteorologistas detected additional rotation in Montgomery and San Jacinto during the morning.
High temperatures increase the risk
Temperatures reached 28°C to 29°C in the region, close to a record for November. The humid air from Golfo to México combined with southerly winds intensified atmospheric instability. The forecast indicates gusts of up to 80 km/h and large hail in affected areas.
The main line of storms is expected to reach the center of Houston between 7pm and 9pm and head towards the coast after midnight. Most locations are expected to receive between 6mm and 19mm of rain.
History of tornadoes in November
November is the month with the highest occurrence of tornadoes in Houston, according to climatological data. Frentes frequent colds encounter abundant moisture from Golfo and generate supercells. The 1992 F4 tornado on Channelview, also in November, caused extensive damage and reinforced the importance of vigilance outside of the traditional spring season.
Recommended protective measures
- Maintain multiple ways to receive alerts (weather radio, apps, local TV)
- Identify in advance the safest place in your home or work
- Avoid staying in trailers or vehicles during the alert
- Protect head and neck in case of improvised shelter
The NWS continues to monitor the system and may issue new warnings as the storms evolve throughout the night.