Collection time: 1435-1456z.

Weather: T:-46.1C, RH: 64%, wind: 18kts at 297. Sky conditions: OVC045. 

Where collected: 2 m E of the MSF.

Description: Needles and irregulars.

Other comments: Slides 0003-0021 are from upwind side, 0024-0039 are from downwind side of t-block.

SWD