The National Weather Service has issued A FLASH FLOOD WARNING for the following counties/areas: San Mateo; Santa Clara, CA; at 6:11 AM on DEC 25, 2025 Effective until 9:15 AM. Message from IPAWSWEA.
ZCZC-WXR-FFW-006081-006085-006081-006085+0304-3591111-IPAWSWEA-
National Weather Service: A FLASH FLOOD WARNING is in effect for this area until 6:15 AM PST. This is a dangerous and life-threatening situation. Do not attempt to travel unless you are fleeing an area subject to flooding or under an evacuation order.
NWS: FLASH FLOOD WARNING this area til 6:15 AM PST. Avoid flooded areas.