At around 7 a.m. on Monday, the tornado originated from a supercell which formed just south of a densely populated city close to the Mexico-Texas border. Most of the region was affected by rain, hail and strong winds, but Ciudad Acuna bore the brunt of this severe weather. The tornado which hit Ciudad Acuna was packed with around 220 kmph wind speed. The tornado came from the same system of storms that had drenched Houston over the weekend.
According to National Oceanic and Atmospheric Association (NOAA) over 100 tornados were reported during the holiday weekend. This tornado was by far the fiercest with wind speeds equaling to an F-3 which has left around 13 dead. Such a strong tornado is unusual for a location this far south.
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