Welcome to DU! The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards. Join the community: Create a free account Support DU (and get rid of ads!): Become a Star Member Latest Breaking News General Discussion The DU Lounge All Forums Issue Forums Culture Forums Alliance Forums Region Forums Support Forums Help & Search

Virginia

mahatmakanejeeves

(57,393 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.

2 replies

= new reply since forum marked as read

Highlight:

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

(115,670 posts)

1. Thank you for using the correct name for DCA.

Reply to mahatmakanejeeves (Original post)

Thu Jan 13, 2022, 11:58 AM

Jan 2022

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

mahatmakanejeeves

(57,393 posts)

2. No, not today. It's 45 degrees F, much warmer than the last few days.

Reply to Ocelot II (Reply #1)

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.

Reply to this discussion