. >> reporter: nicole lynch is keeping her doors and windows locked because of this man, 34-year-old derek sanders. detectives are looking for him after he escaped friday morning. >> he found a way out. decided he didn't want to be there left the facility, walked down to a spot that is still to be determined. >> reporter: sanders is considered a high-risk offender with mental i issues. the san mateo county district attorney's office says sanders is a parolee with a history of violence, weapons and sex offense he is. >> the sheriff's office is taking it seriously, didn't assign just one deputy to go with. they they have a detective thought looking to find them because there is concern for the public in matters like this. >> we are very close. >> reporter: elizabeth mcdermott and her husband move into the neighborhood 20 years ago. the mental health facility has always been there and until now, has not been a problem. >> they changed their procedures, the way he got out sounds a little lax in oversight. so, you would worry about that from -- is it going to happen again? >> reporter: ni

. >> nicole lynch will be keeping a closer eye on her two young children this weekend. >> usually in the backyard but not tonight. >> again, a warning to anyone who may see sand errs on the street. do not approach hi. instead call 911. we're live near redwood city tonight, george kitiama, nbc bay area news. >> thanks so much for the update. >>> an unusual sight. right now we're seeing rain move into the bay area. a rare summer storm. meteorologist rob mayeda joins us now with a first look at the forecast. >> that's right. we've been watching the showers come in on the radar, and you can see them moving south to north. good enough for brief showers around the santa clara valley. any of these yellows and oranges you're seeing between the north bay and petaluma some may include embedded thunder as well, and as long as this how much comes in like a conveyor belt out of the south, this is tropical air, very unstable. it will lead to a forecast which will include the thundershowers all the way into the thirst part of tomorrow. a full look at that coming up in a few minutes. >> new details