Have brought much wider impacts and bigger flooding . Yes. But when it comes to central pressure, its a new record strength with this storm dropping to 975 millibars. The old measure was 987 in 2010. The worst of the storm is developing over the north bay to San Francisco. Its pushing off to the south so i do expect things to continue to pick up here. Get ready contra costa, alameda counties, major downpours over the next 20 to 35 minutes. If youre heading to the Grocery Store in contra costa and alameda counties, you might want to wait until this passes. Good advice. While the rain is a hassle for drivers, it could be outright toxic for people recovering from the kincade fire. The fear is run off filled with ash will seep into the river. Mark matthews joins us from along side the river. Thats a lot of area to cover for those krus. Reporter it is and a very spotty fire. But behind me you can see the bridge over the river. Today the department of Emergency Services here in sonoma told m