Monsoon season adds threat of 'heavy rain' after Nepal floods

? GRIFF: WE'RE GOING TO DIVE. DEEPER INTO THIS THROUGHOUT THE. MORNING. MEANWHILE, THIS IS A LIVE LOOK. AT A MUD-COVERED VILLAGE IN. NEPAL. THE FOURTH DAY OF SEARCH AND. RESCUE OPERATIONS AT. CATASTROPHIC FLASH FLOODING. THERE AND IN CHINA'STY BED. REASON. NEARLY 3,000 REMAIN MISSING. LISA: JUST DEVASTATING. CHOPPER CREWS ARE AIRLIFTING. SURVIVORS TO SAFETY. NOW, LAST NIGHT TRACE GALLAGHER.

SPOKE TO A MAN WHO HAS NOT HEARD. FROM HIS FATHER SINCE HE WENT ON. A HIKE JUST BEFORE DISASTER. STRUCK. >> YEAH. SO THEY WERE RIGHT NEAR THE. NEPAL AND CHINA BORDER, SO THEY. HAD JUST CLEARED OR JUST BEEN. CLEARED TO PASS THE BORDER FROM. NEPAL INTO CHINA. AND THAT WAS THE ABOUT 45. MINUTES BEFORE THE FLOODING. KICKED OFF, AND THAT'S THE LAST. WE HEARD FROM ANYONE IN OUR. GROUP. CHARLIE: AUTHORITIES ARE ALSO. MONITORING TWO NEW LAKES CREATED.

BY THE GLACIAL COLLAPSE. THEY'RE PUTTING THOUSANDS AT. RISK OF NEW FLOODING. LISA: WOW. LET'S CHECK IN WITH. METEOROLOGIST ADAM KLOTZ FOR THE. LATEST. ADAM, WHAT SHOULD WE KNOW? ADAM: ON TOP OF ALL THAT, IT IS. MONSOONAL SEASON ACROSS THIS. PART OF THE WORLD, SO YOU'RE. GOING TO BE SEEING ADDITIONAL. RAINFALL EXACERBATING THESE. PROBLEMS. THE HIGHEST MOUNTAIN RANGE IN. THE WORLD, MOUNT EVEREST OFF. TOWARDS THE EAST AS THOSE. DEVASTATING G FLOODS AS WE'RE.

GOING TO WATCH MORE, PERHAPS, ADDITIONAL RAIN HIT THIS AREA. AND AGAIN, WHEN YOU TALK ABOUT. HEAVY RAIN IN A REGION LIKE. THIS, THERE'S REALLY NO NOWHERE. FOR IT TO GO. IT QUICKLY HATS TO GO DOWN INTO. THESE RIVERS AND RAVINES, AND. THAT'S WHEN YOU SEE THESE WALLS. OF WATER MARCH ON THROUGH. THE ORIGINAL FLOODING DID NOT. COME FROM THAT, DID NOT COME. FROM A BIG RAIN BLAST, BUT WE. COULD SEE MORE OF THAT. AS YOU'RE LOOKING AT SOME OF THE. CLOUD COVER, IT REALLY DEVELOPS. OVER SOME OF THE HIGHER REGIONS. AT THIS POINT, A WHOLE LOT OF.

HUMID AIR OVER INDIA, AND IT. COULD ULTIMATELY SQUEEZE OUT. GIVING YOU A SENSE IN SOME OF. THESE DEEPER COLORS MAYBE AS. MUCH AS A FOOT OF RAIN. PRETTY MUCH RAIN EVERY DAY FOR. THE WEEK AHEAD. I'LL THROW IT BACK TO ALL OF. YOU. GRIFF: NOT GOOD NEWS AT ALL. CHARLIE: THE FOOTAGE OF THAT WAS. JUST ABSOLUTELY SHOCKING AND. DEVASTATING. YOU KNOW, CRYSTAL CLEAR, BEAUTIFUL DAY AND THEN ALL OF A. SUDDEN YOU SEE ALL THESE PEOPLE. RUNNING AROUND, AND THEN ALL OF. A SUDDEN YOU SEE THIS WALL OF. MUCK AND WATER AND ICE COMING.

DOWN. AND THEN YOU REALIZE IN A FLASH. SO MANY WERE GONE. GRIFF: YEAH. IT ALMOST DIDN'T LOOK REAL. LISA: MY HEART JUST BREAKS FOR. THAT YOUNG MAN WHO HAS NOT HEARD. FROM HIS YOUNG MAN.