Tornados on the south frontier of Texas
... El tornado entró a la ciudad de Reynosa, ubicada al otro lado de la frontera de McAllen, Texas, y a los pueblos vecinos, durante aproximadamente 15 minutos ya avanzada la noche del martes y de nuevo en la mañana del miércoles. ... Tornadoes in the winter and early spring are associated with strong frontal systems that form in Texas and Oklahoma and move eastward toward Caddo-Bossier area. ... During the spring in the South-Central States, thunderstorms frequently develop along a "dryline" which separates very warm, moist air to the east from hot, dry air to the west. ... Along the front range of the Rocky Mountains, in the Texas Panhandle, and in the southern High Plains, thunderstorms frequently form as air near the ground flows "upslope" toward higher terrain.