During the search the boat passed over the last known Argos position at least six times. During the second and third hours the search included a four mile square area centered on the last known postion of the Grey Niiler buoy. Weather in Sheboygan took a turn for the worse today with easterly flow and snow. Visibility very poor and sea rough. Lidar crew rested Tuesday afternoon and evening.
Clouds appear to be stratocumulus now.
Flow is onshore. Had problems with laser cooling system throughout morning which we managed to fix. We hope to be operational again Tuesday afternoon. Jim Boyle says the surface heat flux sensor is reporting data, but he thinks the values are too small. Good lidar backscatter structure at altitudes below 800 m should allow derivation of wind profiles as a function of distance from shore.