Collection time: 1315-1320z. Weather: T:-24.0C, RH: 76%, wind: 21kts at 140. Sky conditions: OVC010. Where collected: 3m E of the MSF. Description: Isolated bullets, hollow columns, and irregulars. Other comments: Slides 0006-0030 are from upwind side, 00036-0075 are from downwind side of t-block. RN