Been tracking these on the FAA NOTAM database for a few months now and yeah, the pattern is genuinely weird. You get these temporary flight restrictions that pop up with almost zero advance notice, sometimes only a 6-12 hour window, and the stated reason is usually just "special security" or "national defense" with no further detail.
What gets me is the coordinates. Some of them aren't anywhere near Nellis or the test ranges you'd expect. Theres a cluster that keeps reappearing roughly 40 miles northwest of Tonopah that has no obvious connection to any known facility.
I cross-reference these with ADS-B data whenever I can. Sometimes you'll see unusual flight activity right before the restriction gets filed, like the NOTAM is being put up after the fact to cover something that already happened.
Anyone else doing NOTAM monitoring? Would be worth comparing notes and building a proper timeline. If enough people are logging these consistently we might actually start to see a real pattern rather than just individual data points.