Transcript for Inside a Hurricane Harvey rescue mission
mayor and heard him say many victims are still stranded and go to our senior meteorologist rob Marciano who went above Beaumont, Texas, in a black hawk helicopter to see rescues firsthand. Good morning, rob. Good morning, George. We're in Conroe, Texas, one of the many air bases they're using the army reserve choppers behind me. We went up with the U.S. Customs and border protection, air and marine operations and do pretty much the same thing and within 90 minutes of flying around we saw water that many areas was as high as the rooftops come down a little bit today but we immediately got to an elderly couple. You see the woman coming out and getting out of that basket. Boy, was she relieved. Smiled, soaking wet and just exhausted and a lot are immobile, tough to get them out of the baskets, sometimes it takes a couple of guys just to do that. Another man came up and came in with his dog. To see the relief and joy on their faces once they get into the dry chopper is inspiring. Rob, you came upon one very large family. We did. So we also got to a place where there was some high ground but there was an area of high ground and dozens of people flocking to get to that higher dry ground and we had 13 people pile into this chopper, a lot of them kids and they had a mixture of joy from the kids, excitement from the kids and a little bit of fear from some of them as well but the guys were cheesing for the cameras and you can see the ladies there, just that ex-a ex-alling relief of finally being rescued and we got them to safety as well. That was an amazing experience. Rob, I know everyone has been going around the clock. Give a sense of how many rescues there have been in total. You know, George, it's tough to quantify because the way they count them at least in the air lift business is if you pick one person up in a hoist basket, that's one rescue but if 13 people pile in and you lift them from dry land that's also one rescue and they're all different agencies working together and they'll radio back to base how many people they have on board but in the end they're way too busy doing it. A good guesstimate would be tens of thousands have been rescued in this operation which will be ongoing today. More to come. Rob Marciano, thanks very much.
This transcript has been automatically generated and may not be 100% accurate.