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Science Quickly

Your Guide to Summer’s Extreme Weather, from Corn Sweat to Flash Floods

Science Quickly

Scientific American

Science

4.41.4K Ratings

🗓️ 30 July 2025

⏱️ 8 minutes

🧾️ Download transcript

Summary

The summer of 2025 has been a doozy in the U.S., with extreme weather across the country. Flash flooding caused destruction and death in Texas. Corn sweat made a heat wave in the eastern half of the U.S. worse in the Midwest. Senior editor for sustainability Andrea Thompson takes us through these extreme weather events. Recommended reading: Why Did Waters Rise So Quickly in the Texas Flash Floods? https://www.scientificamerican.com/article/why-did-texas-flash-flood-waters-rise-so-quickly/  ‘Corn Sweat’ Is Making This Heat Wave Even Worse https://www.scientificamerican.com/article/humidity-from-corn-sweat-intensifies-extreme-heat-wave-in-midwest-u-s/  E-mail us at sciencequickly@sciam.com if you have any questions, comments or ideas for stories we should cover! Discover something new every day: subscribe to Scientific American and sign up for Today in Science, our daily newsletter.  Science Quickly is produced by Rachel Feltman, Fonda Mwangi, Kelso Harper and Jeff DelViscio. This episode was hosted by Rachel Feltman with guest senior editor for sustainability Andrea Thompson. Our show is edited by Alex Sugiura with fact-checking by Shayna Posses and Aaron Shattuck. The theme music was composed by Dominic Smith. Learn more about your ad choices. Visit megaphone.fm/adchoices

Transcript

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0:00.0

Why are businesses like HelloVet choosing Apple products and services?

0:05.1

So we started the business two years ago.

0:07.2

We had a few people who were used to PCs and this was their first foray into Macs.

0:12.5

But it's been super smooth getting everyone onto those devices and everyone seems really, really happy.

0:18.0

Find out how Mac can help you run and grow your business

0:21.2

at Apple.com forward slash hellovett.

0:36.5

For Scientific American Science Quickly, I'm Rachel Feldman.

0:44.8

With summer heat domes slamming down on parts of the U.S. and hurricane season ramping up, you've no doubt

0:55.7

seen plenty of extreme weather stories in your feed over the last few weeks. Joining me today

1:01.0

to demystify a few of those headlines is Andrea Thompson, a senior news editor for

1:06.2

sustainability at Scientific American. Thanks so much for coming on to chat with us. Thanks for having me.

1:11.9

So let's go over some of the topics that people might see trending in the headlines a lot,

1:17.5

you know, during this time of year. We'll start with flash flooding. Could you tell us a little bit

1:22.6

about what happened in Texas and how it was possible for these floods to become so dangerous so quickly?

1:31.3

Yeah, so flash flood, it's sort of in the name.

1:34.3

It happens really quickly and often takes people by surprise.

1:38.3

It happens when you have really intense rains over a fairly small area, usually over a relatively short time span. And that's

1:46.7

basically what happened in Texas. There's between six to ten inches of rain in three hours,

1:51.0

which is a lot of rain. And basically, the ground just can't absorb that much water that quickly.

1:57.8

And it can be exacerbated by other aspects. You know, in cities, you have a lot of pavement,

2:02.3

a lot of asphalt, and those are impermeable to water. So water is going to collect even more than it

2:09.0

would on, you know, soil. And then topography can play a role too. And in Texas, this was an area

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