For the last day or so, the UK Royal Air Force VOLMET (aviation weather broadcast) has been loud and clear in the U.S. on 11159 kHz USB. This is not a frequency change, as the European signal is still on its normal frequency of 11253 kHz USB.
The 11159 signal duplicates the 11253, but is slightly out of sync with it. (Thanks, Token!)
All reception reports suggest that this signal's point of origin is in the continental U.S., and likely the West.
At 2318 UTC on 10 Aug, it's S9+ here in CA.
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