RELATED: 10 Bay Area cities break heat records
The National Weather Service said the showers developed around midnight and moved in the north northwest direction.
Lightning could be seen from Hayward, and Berkeley, surprising many residents.
12:30 AM radar: Isolated thunderstorm in eastern #AlamedaCounty. Lightning seen from #Hayward. Storm moving towards Berkeley. #cawx pic.twitter.com/FwE3AlCQDb
— NWS Bay Area (@NWSBayArea) June 19, 2017
I had to hop on twitter to make sure I wasn't trippin when I heard that thunder lmaoo
— Kat (@_katyymariee) June 19, 2017
Lightning and thunder but it's 100 degrees what in the world
— Riki (Kim) (@rikimgr) June 19, 2017
The storm then moved onto the Marin County area.
1:20 AM Monday Radar update: Isolated thunderstorm now approaching #MarinCounty including #SanRafael and #Novato. #cawx pic.twitter.com/WB0jApGq2h
— NWS Bay Area (@NWSBayArea) June 19, 2017
The National Weather Service said the showers would end by daybreak Monday.
Click here for a look at your updated AccuWeather forecast.
Click here to download the ABC7 News App to get your weather forecast on the go. And make sure you enable push alerts for immediate notifications and severe weather alerts.
