Significant hail accumulation was reported along I5 between Cottonwood and Anderson, causing travel delays as CalTrans worked to clear the roadway. This weather event was part of a broader severe weather pattern affecting parts of California, including a severe thunderstorm warning issued for Covina, Pomona, West Covina, Baldwin Park, Diamond Bar, Claremont, East Los Angeles, Downey, and Norwalk until 4:15 PM PDT and 4:45 PM PDT. The storm brought surface temperatures into the upper 30s°F and hail the size of small marbles in East LA, as noted by residents. The National Weather Service also issued a Flood Advisory for portions of LA County, including the San Fernando Valley to San Gabriel Valley and Downtown LA, until 7pm, advising caution while driving and to avoid flooded roads.
Hail in Azusa! This is a severe thunderstorm for SoCal 😆 https://t.co/lPe9ysafx4
A Flood Advisory is in effect until 7pm for portions of LA Co. from San Fernando Valley to San Gabriel Valley including Downtown LA due to strong thunderstorms moving thru. Be extremely careful while driving & if you encounter a flooded road, turn around don't drown #LA #CAwx https://t.co/DDSxamr8Se
Severe Thunderstorm Warning including Pomona CA, Diamond Bar CA and Claremont CA until 4:45 PM PDT https://t.co/LDxBIAgk4R
Severe Thunderstorm Warning continues for East Los Angeles CA, Downey CA and Norwalk CA until 4:45 PM PDT https://t.co/4sAj0UO9LX
Severe Thunderstorm Warning continues for Pomona CA, West Covina CA and Baldwin Park CA until 4:15 PM PDT https://t.co/rsGYbPwobN
Crazy hailstorm going on rn where we live in East LA. Hail the size of small marbles. I've never seen anything like this in LA in my lifetime. https://t.co/qCdZXrD1wt
WEATHER ALERT: Severe thunderstorm warning issued for parts of Los Angeles County https://t.co/XBX2scA9lF
Severe Thunderstorm warning for Covina/Pamona! https://t.co/XdozLXz0TB
Severe Thunderstorm Warning including Pomona CA, West Covina CA and Baldwin Park CA until 4:15 PM PDT https://t.co/MLfaH3ncBg
Significant accumulating hail has been reported along I5 between Cottonwood and Anderson, and is causing travel delays as CalTrans works to clear the roadway. #CAwx https://t.co/Mc9Pb74ewX
Crazy hail near Anderson, CA underneath a potent and long-lasting thunderstorm. Surface temperatures into the upper 30s. A later pass through revealed a ton of accumulated hail! #CAwx https://t.co/KiURgZSNkP