Photo by Erin

Many, many rounds of cannon fire/booms reported to us this morning. This comes up every few months, just enough time to forget why it’s happening for a minute :)

From a previous discussion revealed by old guard alum:

“The Old Guard’s Presidential Salute Battery conducts rehearsals (aka Blank-Fire Crew Drills) on Thursday mornings starting at 0700 in Arlington National Cemetery and on Ft. Myer. These drills are used to rehearse for upcoming ceremonies and certify new Soldiers on the ceremonial 105mm howitzer cannons. They do the drills before the cemetery opens for the day. The modified howitzers can only fire blank rounds; no projectiles.

During changes in the seasons (usually late spring or early fall), the sound from the blank shots tends to travel further and more residents hear it. Not sure if it has something to do with the changing temp… foliage…?”

I know it’s not Thursday but this is still my guess.

Doug also notes: “So this has to be the answer, the cadence is def cannon-salute-esque

Gotta be some sort of weather/atmospheric situation this am that’s making the noise carry more than usual though

And Brad shares the article “Here’s Why Sound Carries Farther on Cold Days”


Rodrigo writes: “Instead of biking, I finally took the Metro home and noticed all these sensors on the walls of L’Enfant Plaza; anyone know what these are for?”

WMATA replied: “Hi Rodrigo, good eye and great question! These sensors were put in from our Engineering Department. Happy Friday!”

Those sensors monitor geographical shifts in stations.”


“Dear PoPville,

What is the building with two tall smoke stacks at the western end of the actual Navy Yard, just across from La Famosa? For the several weeks I have lived nearby, there has been nothing to see here. Now, for the second day in a row, there is a huge amount of smoke coming out at the bottom of the building (not even out of the smoke stacks) and a very loud whir of machinery. (more…)



Photo by Chris Alexander

Update: “Last night’s lighting outage at the Washington Monument was caused by the failure of the timeclock that turns the lights on each evening and off in the morning. While the faulty part is being replaced, the lights will be operated manually to ensure the monument is lit each night.”

8:49pm The National Park Service reported: “The exterior lights of the Washington Monument are currently out. We are investigating and will have them restored as soon as possible.” (more…)



via NORAD

From NORAD:

“The North American Aerospace Defense Command will conduct Falcon Virgo, a routine air defense exercise, on Thursday, January 14, through Friday, January 15, and again on Monday, January 25, through Tuesday, January 26, between midnight and 5:30 a.m. EST each day in the National Capital Region. (more…)


“Dear PoPville,

While walking my dog in Cleveland Park, I kept coming across these curious markings on the sidewalk. They were like little piles of pink chalk–not drawn on or spray-painted–and easily brushed away. Each had the exact same shape (an anchor? A skull?) and were placed about 10 feet apart, stretching the length of several sidewalks. Any idea what these markings mean? Found on Woodley Rd NW around the field of the National Cathedral School and also Cathedral Ave NW.”


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