The weather station has completely stopped transmitting all data.
Davis Instruments has been contacted. I will probably bring the unit in for repairs on Tuesday (they are just across the bay in Hayward).
Living some 30 yards from pounding surf creates an intense marine environment that tends to corrode even "non-corrosive" materials. This was completely evident the last time I brought the unit in for repairs earlier this year -- all of the circuit boards, wires, and even screws were in pretty rough shape.
This time, however, I saw little evidence of corrosion as I opened up and inspected the unit. So, something else must be going on.
Anyway, I have worked with Davis Instruments before, and their customer support is among the best I have ever seen. Absolutely top notch.
I hope to have the unit back online and fully functional in 2 weeks. In the meantime, other parts of the site will continue to get updated -- i.e. severe weather warnings, barometer readings (since it is an internal sensor unaffected by the transmit problems), and the recent Clear Sky Clock, which is an algorithmic attempt at predicting astronomical "seeing" conditions for a spot about 4 miles from here (but at an elevation several hundred feet higher above sea level).
I am amazed by how many people actually use and rely upon this site for data. With this in mind, I will get the unit repaired as fast as possible -- just in time for the typically awesome Northern California winter season...