There are no active watches, warnings or advisories for Los Angeles County San Gabriel Valley (California).
Glendora Random Weather Fact
"MICROBURST: A small downburst with its outburst, damaging winds extending only 4 km (2.5 miles) or less. In spite of its small horizontal scale, an intense microburst could induce damaging winds as high as 75 m/sec (168 mph)."
Courtesy of NOAA