The HWUT picket has been down for a couple of days following some malfunctioning (Reported in [LHO aLog 79076]). We also saw the spurious signals at Stanford. This station's malfunctioning means the picket fence is not giving the intended forewarning for events originating in South/Central America.
We'll find a replacement picket soon and upload a revised code during the week.
Please post any additional requests in here, or feel free to message me directly.