as today in the bay tom jenson tells us, concerning is growing. >>reporter: it may be one of the most unique additions in the neighborhood. historic catholic church converted into a roller rink. >> this is a fun, cool place for everybody. >>reporter: but the rink's owner said what happened to a man leaving his business friday night has him shaken. >> he was just bleeding like a hose. >>reporter: david miles said a man dressed as a pirate and wearing a red maga hat began threatening people coming and going from the rink before 10:00 friday night. miles told nbc bay area as one of his customers left the rink, he flipped off the harasser, who promptly pulled out a long blade and slashed at the man's finger, cutting him across his wrist and hand. >> it was a sword. it was two feet long. so the guy that got caught, i don't think he realized how bad he was cut because he chased this guy almost a full block down the street. >>reporter: miles said he thinks of his rink as an oasis in a crime-ridden community. last saturday a gunman opened fire on a crowde

tom jenson, nbc bay area news. >>> also new at 11:00, a new idea in the south bay to stop gun violence. dave corteti says the county will roll out a 24/7 gun surrender program. he says people who own guns don't know how to get rid of them properly. 4-hour availability to turn in weapons could make a big difference. >> people don't understand the rules, and they're scared to travel. they don't know if they can put the gun in their car and bring it to the sheriff. they don't know if it's registered properly. >> the announcement comes one day after a judge blocked a california ban on high capacity magazines. >>> president trump moved to cut direct aid to el salvador, guatemala, saying their citizens are overwhelming our southern border. marianne favro now has reaction. >> reporter: things are moving quickly. the state department has already notified congress that it will suspend payments to the trio of central american nations. with growing frustration over the number of families arriving at the southern border, today president trump is talking tough. >> i've ended payments to guatemala,

we're live in walnut creek, tom jenson, "today in the bay." >>> well, we have been keeping an eye on t pg&e map. they're small so far. >>> if that storm comes in as advised, welln' normally issue anynow, yesterday some fle delayed for about an hour. >>> right now is a good time to download that nbc bay area app. keep track of that storm. we have the radar on. that way you can get the breaking weather alerts straight to your phone and track the weather in your own neighborhood. >>> well, the east bay is getting closer to the second teacher's strike. on friday, teachers in san ramone voted to authorize a strike. today at a community leader, teachers will update parents on what to expect if there's a strike. that would impact more than 32,000 students. teachers are asking for money and also for better benefits as well. >>> san mateo workers are still on strike. the human services unit group including more than 900 employees inario departments. but we don't know how many will actually take part. this marks the last day of the strike. the county has been maintaining the essentialer coming

. >>> our team coverage continues with "today in the bay's" tom j jenson. you saw messy roads, car crashes, and you even turned around to shoot video of a massive tree down, is that right? >> it was a crazy morning out on the roads. this is the lightest rain i've seen so far. right now we're on waterfront drive, outside of martinez. a road that you can see was flooded. it is not flooded, but they're preparing possibly for these waters to come back up and flood this road as well as many others as the rain continues through this weekend. i did see at least one wreck this morning on i-80 just not far from here. it looked like it was probably weather related. i could not stop and ask questions. it wasn't safe. but this is what else i ran into as i was snooping around investigating some of those trouble spots that we know about. a massive tree mrobleen blown de heavy winds. this went across the two eastbound lanes on highway 12 southeast of napa. a little bit north and east of american canyons. just minutes before i arrived. traffic was beginning to back up to a