Below is a short segment from mote_dump 11,42 with only Tsoil data. Note that values of 94.4x cycle through each soil depth measurement about every 6 samples. I don't yet know whether this is a Mote, Sensor, Software, or interference issue. Other sensors on this mote don't exhibit this behavior. Clearly, these "spikes" are easy to remove, so I won't worry about it excessively.
2012 10 05 04:03:42.9490 0 11,0xaa23 16 94.44 6.09 7.44 8.34
2012 10 05 04:03:43.9481 0 11,0xaa23 16 4.27 6.09 7.44 8.34
2012 10 05 04:03:44.9409 0 11,0xaa23 16 4.27 6.09 7.44 8.34
2012 10 05 04:03:45.9333 0 11,0xaa23 16 4.27 6.09 7.44 8.34
2012 10 05 04:03:46.9452 0 11,0xaa23 16 4.27 6.09 7.44 8.34
2012 10 05 04:03:47.9494 0 11,0xaa23 16 4.27 6.08 7.44 8.34
2012 10 05 04:03:48.9374 0 11,0xaa23 16 4.27 6.08 7.44 94.48
2012 10 05 04:03:49.9325 0 11,0xaa23 16 4.27 6.08 7.44 8.34
2012 10 05 04:03:50.9556 0 11,0xaa23 16 4.27 6.08 7.44 8.34
2012 10 05 04:03:51.9416 0 11,0xaa23 16 4.27 6.08 7.44 8.34
2012 10 05 04:03:52.9437 0 11,0xaa23 16 4.27 6.08 7.44 8.34
2012 10 05 04:03:53.9469 0 11,0xaa23 16 4.27 6.08 7.44 8.34
2012 10 05 04:03:54.9419 0 11,0xaa23 16 4.26 6.08 94.46 8.34
2012 10 05 04:03:55.9379 0 11,0xaa23 16 4.26 6.08 7.44 8.34
2012 10 05 04:03:56.9471 0 11,0xaa23 16 4.27 6.08 7.44 8.34
2012 10 05 04:03:57.9372 0 11,0xaa23 16 4.27 6.08 7.44 8.34
2012 10 05 04:03:58.9442 0 11,0xaa23 16 4.26 6.08 7.44 8.34
2012 10 05 04:03:59.9304 0 11,0xaa23 16 4.26 94.43 7.44 8.34
2012 10 05 04:04:00.9344 0 11,0xaa23 16 4.26 6.08 7.44 8.34
2012 10 05 04:04:01.9574 0 11,0xaa23 16 4.26 6.08 7.44 8.34
2012 10 05 04:04:02.9295 0 11,0xaa23 16 4.26 6.08 7.44 8.34
2012 10 05 04:04:03.9566 0 11,0xaa23 16 4.26 6.08 7.44 8.34
2012 10 05 04:04:04.9329 0 11,0xaa23 16 4.26 6.08 7.44 8.34
2012 10 05 04:04:05.9278 0 11,0xaa23 16 94.44 6.08 7.44 8.34
2012 10 05 04:04:06.9958 0 11,0xaa23 16 4.26 6.08 7.44 8.34
2012 10 05 04:04:07.9301 0 11,0xaa23 16 4.26 6.08 7.44 8.34
2012 10 05 04:04:08.9280 0 11,0xaa23 16 4.26 6.08 7.44 8.34
2012 10 05 04:04:09.9381 0 11,0xaa23 16 4.26 6.08 7.44 8.34
2012 10 05 04:04:10.9363 0 11,0xaa23 16 4.26 6.08 7.44 8.34
2012 10 05 04:04:11.9353 0 11,0xaa23 16 4.26 6.08 7.44 94.48
2012 10 05 04:04:12.9273 0 11,0xaa23 16 4.26 6.08 7.44 8.34
2012 10 05 04:04:13.9513 0 11,0xaa23 16 4.26 6.08 7.44 8.34
2012 10 05 04:04:14.9475 0 11,0xaa23 16 4.26 6.08 7.44 8.34
2012 10 05 04:04:15.9566 0 11,0xaa23 16 4.26 6.08 7.44 8.34
2012 10 05 04:04:16.9329 0 11,0xaa23 16 4.26 6.08 94.46 8.34