reply to post by 5 oClock
I live NEAR the Wahington, D.C. area (suburbs)....I TOO see contrails (some days) and see NONE (other days) because....THAT IS HOW IT WORKS!!!
Contrails won't form EVERY DAY!!!! And, they won't form at EVERY ALTITUDE!!!
BTW...THOSE contrails?? Those are common, when conditions are right for thme to form, in the EXACT pattern your photo shows, because there are Jet
Airways that are OVERHAED this region, aligned roughly north/south.
Go there. Type in, oh let's say.....KDCA just to center the map, and bring up the relevant charts.
(KDCA is the ICAO airport code for the Washington National Airport....also known as (gag) the "reagan" airport)....
When you get to the site, above, and input "KDCA", you will have to further click on the tab labelled "Enroute H-10", to see the "High" (that's
what the "H" means) altitude charts for the area.
Take a look, then, at the BLACK lines on the chart...those are the Jet Airways routes.....see???
"J-75" is one that runs mostly north/south....well northeast/southwest. It is a VERY BUSY AIRWAY for most air traffic, from the northeast area (and
International, too) to points in other parts of the USA (and the world).
"J-61" is another, as you can see. There are several others, and it ALL DEPENDS on the departure point/destination and how flights are routed.
I can show you DETAILED airplane routings, if you wish....OR, you can see for yourself, at www.flightaware.com...
Enter various city pairs, look up the flight details...it's not difficult, it's not "secret". IF someone bothers to actually research, and take
the time to learn.....