-- or ruptured a high-pressure pg&e gas transmission pipeline running through the county sheriffs firing ranges. that set off an explosion and a fire ball that reached 100 feet high, injuring at least 14, one with serious burns. this is what a spokesperson told us about an hour ago. >> last report, it was going to take approximately two hours for them to shut it down. now we are waiting for pg&e to shut down the line. >> gas has been shut off. >> reporter: i called pg&e and nothing was offered of substance until about 20 minutes ago. >> gas has been shut off as of 3:56 p.m. >> reporter: why did it take from 2:30 to 3:56 p.m., hour and a half to turn off the gas? >> we're currently investigating all aspects of

this incident. >> reporter: the long delay in shutting down the gas was a critical factor in the mass destruction of san bruno and suggests that shutoff valves are inadequate, even for this much smaller line, just 12 inches, line 118-b. now, with the fire out, officials at fresno fire are monitoring the atmosphere and other conditions there to make sure that nothing spreads in terms of grass fires and that all of the air is clear and safe. that's the latest that we know right now. >> tom, can you put that number in perspective for us, how long it took hem to shut it off? what would be a good number? >> reporter: well, i mean, if you have shutoff valves that are close by, that could be within seconds or certainly within minutes. the problem is sometimes these valves are miles apart. so imagine having a 12-inch line, let alone a 30-inch line that's got hundreds of pounds pressure per square inch over miles. once that line is ruptured, what happens? that gas has to vent to the lower pressure atmosphere. it will keep coming out and out

and out until it just vented out. same thing that happened in san bruno. that's why it took more than 90 minutes for this to happen. what's of particular concern about this, most people don't know, some sort of a dig-in, not this big and not this billing of consequences, but some kind of a dig-in like this happens in the pg&e system alone five times every day. >> five times every day. >> reporter: that's indeed the case. >> a startling number. tom vacar, thank you. stay with ktvu and ktvu.com for continuing coverage on this breaking news. we're also posting updates on twitter, facebook, and on our new mobile app. now to a multimillion dollar drug operation uncovered in the bay area. authorities say they found nearly 5000 marijuana plants inside a building in benicia. as ktvu's john sasaki tells us, today's bust comes just three months after authorities found another illegal growing operation in that same area. >> reporter: a nondescript

building on stone road in benicia housed what was called green view home solution. >> it's an interesting name. clearly not a legitimate business. >> reporter: the solano county sheriff's office and the fbi moved in on thursday morning. >> i said wow, it is something really going on. sheriff pulled up with a trailer and i said, wow, looks like a drug bust going on. >> reporter: troy moore was correct. deputies and agents found a huge marijuana growing operation with millions of dollars worth of product. >> there was over 4800 plants. there were several pounds of processed marijuana confiscated or seized during that search warrant. the street value of the marijuana was over $14.5 million. >> reporter: now in the window is a document from a law office in oakland that orders the tenants out because of the cultivation of marijuana. >> thinking this is the second one in six months. i think something needs to get stepped up out here. >> reporter: in fact, this bust

came just three months after a similar raid of this warehouse on east second street, half a mile away. >> very similar to the same type of operation, just on a smaller scale. so clearly it was related to it. >> reporter: investigators say that previous bust came after a benicia police officer responding to some other issue noticed something suspicious. it netted more than 800 plants and $2.5 million in processed pot. >> i don't think it's an isolated incident to the city of benicia in the industrial area of benicia. i think it's statewide, if not nationally, that these grows being grown outside are now growing inside. >> reporter: the bust helped lead investigators here, where one man was arrested. officials say they are looking for more people who were involved. in benicia, john sasaki, ktvu fox 2news. monday marks 4/20, the annual international marijuana celebration that draws thousands of pot smokers to golden gate park in san

francisco. preparations are already under way. police estimate 15,000 people came out for last year's event, which fell on easter sunday. stores in the area say they lost a lot of business when police closed down nearby streets. officers at the sfpd park station told residents that they hoped to keep street closures to a minimum this year. last year, 20,000 pounds of trash was left in a single day at the park. the department spent $23,000 for cleanup and park patrol. >> we want people to enjoy the park, but we also want them to clean up after themselves and take their trash out or throw their trash in a trash bag and do everything they can to protect the park. >> city officials say there were a number of reports last year of minors at the marijuana festival. this monday will be juvenile probation -- there monday, there will be juvenile probation and undercover officers out to make sure that teens are not a part of this annual 4/20 celebration. and it's a party across the bay right now.

at&t park, the weather today, beautiful. a little bit of fog at the coast. we sent mark tamayo to take a look at the ballpark and give us an idea what we can expect for the game against the diamondbacks. he's live out at at&t park. mark, how you doing? >> reporter: hi, there, bill. great weather out here. lot more people starting to show up for the first orange friday game of the season. we'll look off right now and show you this, the clear skies. i am watching a fog bank near the coastal hills, but not here yet. a little breeze, around 10 to 15 miles an hour. weather looks great for the game here at at&t park, which happens just after 7:00. lots of pregame festivities here, as you can see at the yard, mission rock. they always say a baby adds a lot to a live shot. i saw this sign here, this is craig from santa rosa. it says baby's first game. let's go giants! craig, where's the baby? >> my granddaughter, who is two months old, is stuck on the 101 in traffic, but we did bring a picture of her! >> reporter: and her name?

>> lilianna. >> reporter: hopefully she will be here in time for first pitch. look at your gear. you got the nice giants shirt, also have the comfortable shorts. can you explain the socks i once had in college, the nerd socks? >> my wife saw these socks in orange and black and said she had to have these for me. she calls me her favorite giants nerd. that's what works for us. >> reporter: you're very well equipped for tonight. going to the game tonight, but over the weekend as well, right? >> yeah, going to hit sunday's game. going to be great. go giants! >> reporter: if you are heading to the game this weekend for both saturday and sunday, we have the forecast right now. we will have some patchy fog to deal with for both games and temperatures will be in the upper 50s to right around 60 degrees. overall, looks like a great starting week for the games here at at&t park in san francisco. lot of excitement here, as you can see out toward the park. just all around me. bill? >> great night out there. first friday night game for the giants. how great is that? >> what a spectacular night to be out at the ballpark.

>> clear skies. it's beautiful out there when it's like this. looking forward to a good weekend. we'll have more with you coming up. bill will be back in 10 minutes with the rest of your forecast. the ktvu weather team is posting updates on the latest conditions on twitter and facebook. new at 6:00, memories of the aftermath of the 1906 earthquake captured in pictures, fading away, literally. the collection of photographic negatives, many of them never seen before, are now being held in refrigerated vaults. >> san francisco's fine arts museums have launched a campaign to preserve those images. as mike mibach reports, time is ticking to save a cherished piece of san francisco history. >> reporter: deep inside the legion on of honor is a private room filled with history not many have seen. images filled with the crisp character, for us bringing to life, life after the 1906 earthquake. >> you can also see how they struggled in the immediate aftermath, the tent cities that went up, how people were cooking and lining up for

provisions. >> reporter: the man who took these photographs that april day, arnold gintham. in his memoir, he wrote about it. >> i went to montgomery street to shop and asked them to lend me a camera. take anything you want, he said. this place is going to burn up anyway! >> reporter: the voice telling that story, associate conservator, victoria bender. >> this is the actual film that was there that day. >> reporter: each and every image does tell a story, but 109 years later, there is a problem. the photographic negatives are deteriorating. and this is an example of one of those photos now vanishing. >> the first thing that we have to do is slow it down by placing it in freezer storage. >> reporter: the second step is to digitize the 158 photographs, enlarging them in high resolution, capturing more detail. that step takes time and money. curator james ganz says a campaign to raise at least $40,000 is under way now.

>> there is an inherent problem with the negatives. they are not stable. they can basically go at any time. >> reporter: april 18, 1906. san francisco, a city in ruins. this priceless collection captured it all. today, it's fading away, but hopefully those at the legion say it can be preserved and with it, the historic images will come back to life. mike mibach, ktvu fox 2news. controversy at the golf course. the latest in the battle between the fairway and the frogs. >> also, the state's warning about a new invasive kind of mosquito. how it could pose a threat to your health. >> and here's a look right now at the friday evening commute at the bay bridge toll plaza. the cars you see there heading toward the camera are trying to make their way into the city. >> here's a look at interstate 80, the commute direction there on the right, and it's pretty jammed up on this friday night. more news, coming up right

after this break.

. new at 6:00, new concerns involving an historic bay area golf course, following a ruling made by the state's coastal commission. it all has to do with a project to control water at the sharp park golf course. environmentalists say it all will harm an endangered animal. the park is owned by san francisco, but actually located 10 miles south of the city in pacifica, near highway 1. ktvu's john fowler explains the battle of fairways versus frogs. >> reporter: one of the bay area's oldest and most affordable places to tee off. >> that a boy! >> reporter: sharp park is on low ground on pacifica's coast, deeded to san francisco.

its home to populations of fresh-water red-legged frogs and the endangered san francisco garther garter snake. the state's coastal commission granted be lated permits to controversial illegal pumps, part of a $400,000 project to control golf course water. environmentalists also object to this seawall, intended to protect the golf course. but they say it, too, was built illegally without permits. >> i think this project has been very mismanaged by the san francisco rec and parks department. >> reporter: the department told me it's coordinating with state and federal wildlife and water agencies, that the project preserves habitat and the golf course. but environmentalists demand a low marshy area be put off limits to golfers. >> it doesn't mean that sharp park golf course would have to close. it would just mean where there is the sensitive habitat area, it would be better utilized as

a park. >> i hope they can resolve it. i know there's some talk about trying to restructure the course and put new holes in or take some holes out. >> reporter: both sides agree it could be years before this match is over. >> there we go. >> reporter: john fowler, ktvu fox 2news. state vector control officials are on the lookout for a new type of invasive mosquito spotted from san mateo county to southern california. the asian tiger mosquito, or yellow tiger, has been known to spread diseases like dengue or yellow fever. so far here, there have been no reports of people getting sick. people have reported seeing the mosquitoes because they behave differently compared to typical mosquitoes that come out at dusk. >> they came and said we've got all these mosquitoes biting us during the day. they are kind of a striking black and white color and they called their local vector control agency. >> the asian tiger and yellow tiger mosquitoes are frequently found in backyards in standing water. time to get more on our

weather now. we're heading into the weekend. looks like it's going to be a nice one outside. let's go over to bill in the weather center for the latest on conditions. >> looks like a great weekend. another great weekend. we've had rain on a couple of them, but a lot of nice weekends this year with the lack of rain. there will be no rain this weekend and very few clouds. a little wind out there now, but not as much as we had last couple days. it was pretty windy certainly on monday, tuesday and wednesday. current temperatures, current high temperatures, 84 today in antioch. that was one of the warm spots. lot of mid-80s out in this area. around the bay, upper 70s, a few low 80s. redwood city, 82. checking the fog along the coast, there's patchy fog. that's sort of the indication that spring is coming, because when you see the fog, you know the environment's becoming stable. jetstream, the bulk of the jetstream is way up here. it goes up over, above vancouver, then drops down into the great basin. you see that low? that's the bottom of the trough. we're under this extended ridge of high pressure that allows the fog to form, but does not allow rain to come in

essentially. that's where we are. there's fog along the coast right now, fog moving in now at stenson beach. if you come in close, lot of folks living out in the sunset and richmond district. you're fogged in west of 19th avenue. here's 19th. if you go over twin peaks across town, it's not bad. at the ballpark, it's sunny. i think it will stay that way until the game is over. then fog rolls over the bay in the morning. winds will push it onshore. the weekend? what you got today is what you'll get saturday and sunday. there's had the cool on the coast. these are current numbers now. there's the warmth inland. this temperature disparity from cool to warm is classic. the cool air gets pulled in by the warm air. warm air goes up, cools, comes back down and you get the feedback loop. you get this land seabreeze, which is indicative of basically our entire summer. it's a dry pattern, a stable pattern, but it allows the fog to form, allows temperatures at the coast to be cool, temperatures inland to be more

like that. upper 70s. it's not a hard core temperature spread, but we're starting to see it, right? we're starting to see low 60s coastside, mid-80s inland. in the wintertime, we're seeing mid-60s coastside. mid-50s inland. it's actually the opposite. 78 degrees in santa rosa tomorrow. 79 in vallejo. some areas at guerneville, 81, 82 degrees. 80 in milpitas. depends what's around you. depends how many trees you have. bunch of redwoods in the backyard, that 82 turns to a 76. forecast highs through the five- day, no rain in this one, but there are encouraging indications that maybe on wednesday, thursday, i got clouds in there now, but one of the models suggests maybe a chance of rain, which would be nice because we could throw more water on the lawns before we have to watch them go away this year. could be one of those years. >> it's sad, watching all the stuff die in your backyard. >> everything is dried up

already. bill, thank you. a search team says it has the first clear images of a world war ii aircraft carrier that was deliberately sent to the ocean floor off the san mateo coast. the navy thanked the uss independence in 1951 after using it in nuclear bomb tests in the south pacific. the ship was contaminated and is believed to contain barrels of radioactive waste. last month we told you how the search team was using an underwater drone to survey it. now, after looking at it, they say the ship is amazingly intact. the a's and giants, both in action tonight. and the pelicans have landed in oakland. there's the guy they call uni brow. game one of the playoffs against the warriors, all set for tomorrow afternoon. >> time now to check in with gasia, live in the newsroom with a look at what we're working on for 7:00. >> coming up for you at 7:00, we have continuing coverage of today's fire ball in fresno. more than a dozen people are hurt following a powerful gas explosion and fire. >> also, one of reality tv's real housewives of beverly

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. warriors! [ laughter ] >> don't you love playoff basketball? lot of excitement for game one of the nba playoffs between the warriors and the pelicans inside george & walt's on college avenue in oakland today, where workers were posting game time beer specials. also today, fans stopped by oakland city hall to sign a good luck banner set to be delivered to the team. tickets for tomorrow's game at oracle, they are going anywhere

from $111 for standing room only all the way up to $4800, even more for courtside seats. at least you got a parking pass with those seats. mark's here now with more on that. warriors fans have been waiting a long time for this. >> yeah, and you know what's great about the warrior fans? you can't call them a bunch of front runners, because for 40 years, they haven't won a championship, but they packed that place. they have got some ridiculous streak of sellouts at the oracle and years and years have gone by, always supported the warriors, good times and bad. mostly bad. but now, yeah, we're on the eve of a playoff spectacular. it's the pelicans in town. that meant anthony davis, there's a huge star. in fact, many people think he will be the number one star in the nba within a couple of years. former number one draft choice out of kentucky. tough to defend him, but the warriors do have a plan. >> you know, my whole thing as

a defender is making it tough for a player to try to score and pushing them away from their strengths and tendencies and try to make them take the tough shot. >> just got to read the defense. they throw different looks at me. i try to make each move based on what the defense does and i think that kind of makes it tough. [ cheering ] >> there's anthony davis in the middle of the pelicans celebration. just the other night after the last day of the regular season beat the defending champion san antonio spurs to earn their spot in the playoffs, and i don't think there are any warrior fans that need a reminder, you cannot take them for granted at all. they came on strong and the warriors, of course, will have their own fan support come tomorrow afternoon. they have 126 consecutive

sellouts. meantime, there's a little baseball to talk about. big day at wrigley field today. remember the rookie who was so heralded throughout spring training? lot of people say this guy is going to be the number one baseball star in the major leagues in a couple of years. his name is chris bryant, with the ovation he gets at wrigley field, called him up from the minor leagues. big story behind that. however, his first big league at-bat does not go as planned, as he is a strikeout victim. matter of fact, he was 0-for-4, struck out three times. but he did make that spectacular catch at third base. remember the name, chris bryant. cubs did lose again to the padres this afternoon. but they have a little something to look forward to there. the a's are 3-3 right now, back in kansas city. ike davis and stephen boat have homered for oakland. and the giants trying to break a seven-game losing streak, taking on arizona later on at at&t. that's the sporting life for right now. lots of good stuff headed our

way. >> and going back to the warriors, tell that story about steph curry. he hit something, like 77 three- pointers in practice in a row? >> try doing that in your garage with layups. 77 consecutive three-point shots. and i think he hit, like, 92 out of 100. i mean, you could say nobody's guarding him, but who cares! try doing that! 77, incredible. >> incredible. >> along with the whole team. >> i know you're all heated up about charles barkley. >> i know, what's with that dude? how come he doesn't like the warriors and why doesn't he think they can win the finals? >> basically in a nutshell, he says no team can go to a championship relying on outside shooting, like klay thompson and steph curry, that it takes a lot of power and muscle inside and all that. i think the warriors are going to prove him wrong. charles never won a championship anyway. when you win a championship, then you can talk about how to win one. >> it will be so fun to prove him wrong. >> mark, thank you. we are continuing to follow

breaking news out of the central valley, where more than a dozen people have been injured following an explosion and fire in fresno. take a look at this picture from the fresno fire department. the agency reports that all gas lines are now shut down. ktvu's ken pritchett is on his way and we'll have the latest on the 10:00 news. thank you for joining us tonight. good night. female announcer: get three years interest-free financing on brand name mattress sets. plus, get free delivery, and sleep train's 100-day low price guarantee. sleep train's interest free for 3 event is on now! ♪ your ticket to a better night's sleep ♪

what's with all the yogurt? shh! durkas has been breaking into my locker. ohh. but i've got a little revenge planned. sorry. i just remembered i don't really care. (taps key) where's mom? oh, my god, what is that outfit? are you going goth? you still sleep with a stuffed panda. don't you have a fraternity to pass out in? is there anything else you need for your procedure? um, i think i'm supposed to have ice cream. hmm. actually, i don't-- i'm sorry. is it a vasecto-you, or a vasectomy? you can have ice cream. thanks. today... (laughs) snip-a-dee-doo-dah! (chuckles) we-we've been talking about doing this for a while. yeah. yeah, ever since dad and gloria had their little accident, we don't need any surprises. also, though, it will allow for a little more