Camarillo Airport, known as Oxnard Air Force Base, hosted Air Defense Command interceptor unites from 1951-1970. These aircraft were intended to protect the Southern California airspace from Soviet bombers making follow-up attacks behind the ICBMs. They would have been instrumental in stopping a second strike. However, that placed Camarillo and Oxnard at risk for nuclear destruction. Fallout probably wouldn't have happened. Having no idea what size weapon the Russians would have dropped, I picked 100 KT. Scenario and image taken from: https://nuclearsecrecy.com/nukemap/
Note: this an adaptation from my non-fiction book Suburban Warfare: A cop's guide to surviving a civil war, SHTF, or modern urban combat, available on Amazon.