GE GETS INTO ANAHEIM, AS WELL. DAVID? >> JUST LOOK AT THAT IN CALIFORNIA. THANK YOU, GINGER. THIS ATMOSPHERIC RIVER SLAMMING THE WEST IS BRINGING REAL CONCERN FOR MILLIONS IN CALIFORNIA YET AGAIN. IN FACT, TONIGHT, A RARE HIGH RISK FLOOD ALERT IN LOS ANGELES. OUR CHIEF NATIONAL CORRESPONDENT MATT GUTMAN IN CALIFORNIA TONIGHT. >> Reporter: TONIGHT, THAT ATMOSPHERIC RIVER ROARING INTO SOUTHERN CALIFORNIA, PELTING IT WITH MORE HEAVY RAINS AND STRONG WINDS. IT IS EXPECTED TO BRING TWO TO FOUR INCHES OF RAIN IN SOME AREAS. NOAA ISSUING A RARE HIGH FLOOD RISK WARNING. WE RODE WITH THE SANTA BARBARA FIRE DEPARTMENT TO INSPECT SWOLLEN STREAMS. THE GROUND IS SO SATURATED ALREADY THAT EVERYTHING IS RUNNING OFF. >> YES. YEAH. YEAH, EVEN, YOU KNOW, WHEREVER -- IT'S JUST NOT SOAKING IN ANYMORE. WE'RE 100% SATURATED. AND WE HAVE MORE COMING. >> Reporter: WATER-LOGGED MONTEREY COUNTY ALSO BRACING FOR MORE DANGEROUS FLOODS. THAT JUST DAYS AFTER A LEVEE BREACH ON THE SWOLLEN PAJARO RIVER SPARKED RESCUES AND FORCED THOUSANDS FROM THEIR HOMES. CREWS NOW RACING TO MAKE LEVEE REPAIRS. THE FLOODING ALSO SHUTTING DOWN PARTS OF SCENIC HIGHWAY 1, WHICH LINKS MONTEREY AND SANTA CRUZ, AFTER RUSHING WATERS ERODED AN EMBANKMENT. OUR ROB MARCIANO IS IN NORTHERN CALIFORNIA. >> IT'S REALLY BEEN COMING DOWN ALL MORNING LONG HERE IN SANTA CRUZ, IN A COUNTY THAT CAN'T TAKE ANYMORE WATER. >> Reporter: IN THE BAY AREA, THE BACK-TO-BACK STORMS TAKING DOWN TREES AND POWER LINES. THIS ELEMENTARY SCHOOL ALSO SAYING A STUDENT SUFFERED A MINOR HEAD INJURY AFTER A REDWOOD FELL ON HER CLASSROOM. DAVID, THIS IS A DEBRIS BASIN JUST ABOVE MONTECITO DESIGNED TO CATCH THE GIANT BOULDERS AND LOGS THAT COME TUMBLING DOWN THE MOUNTAIN. YOU CAN SEE THE WATER GOING THROUGH THAT CONCRETE THERE, AND IT'S SPAT OUT IN THAT JET JUST ON THE OTHER SIDE. NOW, OFFICIALS EXPECT THIS TO HOLD, WITH SOME OF THE HEAVIEST RAIN FORECAST IN THE COMING HOURS. AND OF COURSE, THERE IS THAT FLOOD WATCH STILL IN EFFECT FROM L.A. ALL THE WAY TO SAN FRANCISCO THROUGH TOMORROW. DAVID? >> YEAH, JUST INCREDIBLE, THIS REGION SO OFTEN BONE DRY, TO WITNESS WHAT WE'VE SEEN THESE LAST FEW MO