TRH at wvally4 went nuts at about 13:45 MST, Jan 15.
rserial shows:
rs 5 TRH19 542.40 -1735.03 -99 -99\r\n TRH19 542.40 -1735.03 -99 -99\r\n
Powering it down and up didn't help, it still showed -99 for the raw values.
eio 5 0 eio 5 1
Plots show a little bit of good data from about 21:50 MST to 22:00, then bad again.