TEMPERATURES ALL BELOW AVERAGE HEADING INTO THIS AFTERNOON. I WILL TELL YOU WHY THAT IS HAPPENING. >>> WE ARE GOING TO START WITH BREAKING NEWS WE HAVE BEEN FOLLOWING ALL MORNING LONG. A MASSIVE FIRE IN SAN FRANCISCO. JUSTIN ANDREWS IS LIVE AT THE SCENE FOR US IN THE HAYES VALLEY NEIGHBORHOOD AND JUSTIN, IT LOOKS LIKE THE FLAMES ARE NOT AS BAD RIGHT NOW. IT LOOKS LIKE IT IS MOSTLY OUT. WHAT DO YOU SEE? >> Reporter: YEAH, AMANDA. WE WERE ABLE TO GET AN UPDATE FROM THE CHIEF AND SHE TOLD US THAT IT TOOK THEM ABOUT 10 MINUTES TO KNOCK THE FLAMES OUT. I WANT TO SHOW YOU WHAT WE ARE SEEING. THEY ARE DOUSING THIS BUILDING UNDER CONSTRUCTION WITH THIS WATER HOSE RIGHT HERE. THIS IS THE CASE FOR SEVERAL HOURS. IF YOU LOOK DOWN BELOW, LOOK AT THE DEBRIS THAT COMES ALONG WITH THIS. THIS FIRE BROKE OUT A LITTLE BEFORE 6:00 THIS MORNING AND THIS IS AN AREA THAT IS UNDER CONSTRUCTION. WE KNOW FOUR HOMES NEAR HERE WERE ALSO DAMAGED BY THIS BUT I WANT TO CALL YOUR ATTENTION TO THIS VIDEO THAT WE GOT FROM CITIZEN APP. YOU CAN SEE HOW FEROCIOUS THESE FLAMES WERE. THEY WERE LITERALLY CHEWING THROUGH THIS BUILDING AT ONE POINT THIS MORNING. THIS IS IN SAN FRANCISCO'S HAYES VALLEY AT OCTAVIA AND OAK STREETS. THIS QUICKLY GREW. FOUR HOMES WERE IMPACTED, LEAVING AT LEAST SIX PEOPLE DISPLACED. THERE ARE FOUR OTHER HOMES NEAR HERE THAT WERE DAMAGED BY THIS. KEEP IN MIND, THEY WERE FIGHTING THIS FROM UP IN THE AIR AS WELL AND ON THE GROUND. ANOTHER CONCERN FROM THE FIRE CHIEF, SHE SAYS THAT THE SCAFFOLDING THAT IS A., SHE IS WORRIED THIS COULD POSSIBLY COLLAPSE. SHE DOES NOT KNOW WHEN BUT KEEP IN MIND, THERE WAS ALSO SOME COLLAPSE WITH THIS BUILDING INSIDE. I WANT YOU TO TAKE A LISTEN TO WHAT THE CHIEF SAID ABOUT 10 MINUTES AGO WHEN WE TALKED TO HER. >> WHEN I PULLED UP, I THOUGHT WE WERE GOING TO SEE POSSIBLY A FULL BLOCK GO DOWN. REALLY PROUD OF THE MEMBERS AND WHAT THEY DID TODAY. REALLY LIMITING THE IMPACT TO AN ENTIRE NEIGHBORHOOD. >> Reporter: RIGHT NOW, YOU CAN SEE FIREFIGHTERS ON SCENE HERE OF WHAT WAS A MASSIVE FIRE THIS MORNING. KEEP IN MIND, THERE WERE 140 FIREFIGHTERS FIGHTING THIS FIRE THIS MORNING. THAT IS ABOUT 40 FIRETRUCKS ON THIS SCENE. THEY WILL BE OUT HERE FOR SEVERAL HOURS BECAUSE IT WILL BE A WHILE BEFORE THEY KNOCK OUT THE HOTSPOTS AND DO THEIR INVESTIGATING. THIS FIRE BROKE OUT AROUND 6:00 IN THE MORNING. PEOPLE WERE OUTSIDE. THEY SAW THIS. I WAS ALERTED FROM A WOMAN ON INSTAGRAM WHO MESSAGED ME AND SAID, JUSTIN, LOOK AT THESE PHOTOS I GOT WHEN I WAS DRIVING PAST YEAR. THE FLAMES WERE SO FEROCIOUS, SHE COULD FEEL THE HEAT FROM
