November 9, 1998 transcript # 259-1
Subject(s): rain, pollution
Title: Rainy Weekends
Hi, Im Dave Thurlow from the Mount Washington Observatory and this is The Weather Notebook. Does it seem to rain more on the weekend? If it does, dont you think it might be just your imagination? Well, guess what? In one part of the country, its not.
Dr. Randall Cerveny: "We find that along the Atlantic Seaboard, rain tends to follow a very distinct seven-day cycle where its rainier on Saturdays and somewhat drier on Mondays."
Thats Dr. Randall Cerveny, a climatologist at Arizona State University. He recently authored a study that statistically showed rain to fall more often on the weekend than on other days of the week. Now nature doesnt work on a 7-day cycle, thats something we humans created, so the thought is that something else weve createdpollutionmay be causing this weekend dreariness:
Dr. Cerveny: "Ours was a statistical study and so we dont have firm cause-and-effect relationships. But were suggesting that the pollution traps heat and one of the fundamental ideas in meteorology, of course, is that hot air rises and if it rises, its more likely to cause clouds and precipitation."
Think of it this way. During the workweek, pollutants are being released into the air. Well, that pollution builds and builds during the week and when the weekend hits, there is just a little extra kick, and you have another weekend of rain.
Dr. Cervenys study not only covered rain, but also hurricanes and well talk about that tomorrow, right here on The Weather Notebook. And for additional information, check out our website at weathernotebook.org. The Weather Notebook is produced by Bryan Sejvar. Our series senior editor is Jay Allison, and our engineer is Sean Doucette. Our show is underwritten by Subaru, with major support from the National Science Foundation.