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mahatmakanejeeves

(70,829 posts)
Thu Jan 13, 2022, 11:53 AM Jan 2022

Strange atmospheric conditions are making the planes at National Airport much louder

than usual this morning, as heard from central Alexandria. I can't explain what's causing that.

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Strange atmospheric conditions are making the planes at National Airport much louder (Original Post) mahatmakanejeeves Jan 2022 OP
Thank you for using the correct name for DCA. Ocelot II Jan 2022 #1
No, not today. It's 45 degrees F, much warmer than the last few days. mahatmakanejeeves Jan 2022 #2

Ocelot II

(131,262 posts)
1. Thank you for using the correct name for DCA.
Thu Jan 13, 2022, 11:58 AM
Jan 2022

Is it cold there? Sound travels farther in dense, cold air.

mahatmakanejeeves

(70,829 posts)
2. No, not today. It's 45 degrees F, much warmer than the last few days.
Thu Jan 13, 2022, 12:06 PM
Jan 2022

It's hazy and overcast. I live about five miles from National Airport, and I'm used to the planes. They start up at about 5:45, and I just don't notice them. Today is different. It must be the wind direction, the relative humidity, the air pressure -- I don't know. I've got a barometer inside that's showing about 30.1 inches of mercury.

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