[NLRS] Unusual burst on HAARP spectrum monitor

[Zack Widup]

I'm posting this here because whatever this was appears to have peaked in
the VHF part of the spectrum. Take a look at the HAARP spectrum monitor for
today:

http://maestro.haarp.alaska.edu/data/spectrum2/www/hf.html

If you're seeing this later than May 26, you'll need to look in the archives
for May 26. That band at approximately 0240Z on May 26 appears to be very
broadband but looks like the peak is above 30 MHz. Notice the peak at the
same time on the HAARP VHF riometer:

http://137.229.36.30/cgi-bin/riometer/riom2_sel.cgi

AND on the induction magnetometer:

http://maestro.haarp.alaska.edu/cgi-bin/scmag/disp-scmag.cgi

Several people who monitor Schumann resonances in the ULF range noticed
similar disturbances in the Schumann resonance at the same time, in various
places in the USA not close to Alaska.

Anyone have any insight as to what this was or might be? Anyone notice any
unusual propagation conditions at this time? There was evidently no solar
flare at that particular time.

I'm puzzled but very interested.

73, Zack W9SZ