On Wednesday, the NWS Los Angeles/Oxnard CA issued a tornado warning at 10:20 a.m., effective until 10:45 a.m., for Alhambra, Pasadena, Monterey Park, San Gabriel, El Monte, and Temple City. “At 10:20 a.m., a severe thunderstorm capable of generating a tornado was situated over Alhambra, moving north at 40 mph,” the NWS cited. Residents were cautioned to, “Take cover now! Move to a basement or an interior room on the lowest floor of a sturdy building. Avoid windows.”