Station: Nicholson Peninsula - Byrd Glacier - 80°42'S, 159°26'E - 1987 - 88 Season Date Time Sky Vis Obstruction Temp True Stat. Alt. Remarks to Vis. Wind Pres. ------------------------------------------------------------------------------------------------------------------------------ Nov. 23 1200 SCT 15,000 60 -10 5/255 26.1 2950 Camp located 80°42'S, 159°26'E. Nov. 24 700 BKN 10,000 60 -16 6/260 26.1 " 2100 CLR 60 -12 8/220 26.65 2450 New Camp located 80°51'S, 159°22'E Nov. 25 700 CLR 60 -12 Calm 26.75 " 2100 CLR 60 -11 Calm 26.68 " Nov. 26 700 CLR 60 -11 8/220 26.73 " 2100 CLR 60 -12 8/225 26.79 " Nov. 27 700 SCT 15,000 60 -10 Calm 26.79 " 2100 CLR 60 -11 6/230 26.83 " Nov. 28 700 SCT 12,000 60 -8 3/215 26.78 " 2100 CLR 60 -2 Calm 26.7 " Nov. 29 900 CLR 60 -8 5/170 26.55 " Wind began around 0600 2100 CLR 60 -10 5/210 26.49 " snow plumes visible on ridges of Mt. Hamilton to NW. Nov. 30 700 SCT 3,500 60 -10 9/200 26.58 " Cloud on high peaks of main range 1200 BKN 3,500 40 -8 Calm 26.6 " Cloud moved in from south. Clearing from S. 2100 CLR 60 -5 Calm 26.57 " Sky clear from 1500. Dec. 1 700 CLR 60 -10 5/200 26.57 " Dec. 2 700 CLR 60 -3 Calm 26.8 " Cloud bank moved over & then cleared by 2300 1 Dec. 2100 CLR 60 -4 3/220 26.79 " Cloud bank moved in from _ & back again. Clear by 2000. Dec. 3 700 CLR 60 -9 Calm 26.72 " 1300 CLR 60 -8 12/220 26.65 " Wind began 0830. Dec. 4 700 SCT 20,000 60 -10 Calm 26.7 " Total cloud cover moved over during night. 2100 CLR 60 -9.5 Calm 26.81 " Dec. 5 700 CLR 60 -9.5 11/190 27.02 " Light blowing snow. 2100 SCT 10,000 60 -9 6/230 26.78 " 0.22 drop in barometer in 2 hours. Dec. 6 700 SCT 10,000 60 -6.5 5/230 26.78 " 2100 CLR 60 NIL -6.5 3/170 25.38 3925 Moved camp to 81°00'S, 160°05'E. Dec. 7 700 SCT 20,000 60 -13 8/180 25.48 " 2100 SCT 20,000 60 -13 Calm 25.4 " Dec. 8 700 SCT 20,000 60 -11 Calm 25.35 " 2100 CLR 60 -7 Calm 25.3 3950 Moved camp to 80°43'S, 158°16'E. Dec. 9 700 BKN 6,000 60 -8 Calm 25.42 " Cloud moved in from east during night. 2100 BKN 5,000 60 -5 Calm 25.4 " Dec. 10 700 SCT 10,000 60 -10 3/160 25.4 " 2100 BKN 2,000 10 low cloud -9 8/180 25.4 " Cloud moved in from south during morning. Dec. 11 700 SCT 20,000 60 NIL -10 Calm 25.3 " Dec. 12 0 SCT 6,000 60 NIL -11 7/350 25.27 " 700 OVC 4,000 20 Low cloud -7 Calm 25.3 " 2100 OVC 0'(whiteout) 100 m mod snow -7 3/220 26.2 2900 Moved camp to 80°42'S, 159°26'E. Dec. 13 700 OVC 0'(whiteout) 100 m light snow -7 calm 26.3 " 2100 OVC 4,000 15 -18 5/120 26.3 " Cloud lifted around 1900. Dec. 14 700 OVC 4,000 15 light snow -10 Calm 26.18 " 1200 OVC 0'(whiteout) 100 m mod snow -7 3/220 26.2 " 2100 OVC 0' 400 m light snow -12 Calm 26.3 " Dec. 15 300 BKN 500' 2 low cloud -15 10/180 26.3 " poor & poor. 500 BKN 2,000 10 -12 14/300 26.3 " good & poor. 700 OVC 2,000 10 -11 12/230 26.28 " poor & poor. 1200 BKN 1,000 5 light snow -5 calm 26.22 " fair & poor. 2100 CLR 60 NIL -15 14/300 26.08 " good & good. Dec. 16 300 CLR 60 -17 12/290 26.14 " 700 CLR 60 -15 10/290 26.15 " 1200 SCT 10,000 60 -7.5 4/280 26.15 " Picked up by C130 1700hrs 16 Dec '87 - New location: Starshot Glacier Dec. 20 700 BKN 8,000 20 -11 10/270 24.25 5,100 fair & fair. Location 81°55'S, 158°30'E. 900 OVC 5,000 15 -5 Calm 24.2 " poor & poor. 1000 BKN 3,000 15 -6 10/290 24.18 " fair & fair. 1100 BKN 3,000 15 -2.5 Calm 24.15 " fair & fair. 1200 OVC 1,000 5 -5 3/270 24.15 " fair & poor. 1300 BKN 1,000 5 -5 Calm 24.15 " fair & poor. 1400 BKN 1,000 5 light snow -3 3/300 24.15 " poor & poor. 1600 BKN 1,000 5 -3 3/300 24.1 " fair & poor. 1700 OVC 1,000 5 -2 5/270 24.05 " poor & poor. 2000 BKN 1800 5 -6 Calm 24.1 " fair & poor. 2100 OVC 1000 3 -8 4/135 24.1 " poor & poor. 2200 OVC 1,000 3 -8 Calm 24.1 " poor & poor. Dec. 21 700 BKN (1/10 500')& (6/10 15,000) 3 -5 Calm 24.1 " good & poor. 1100 OVC 0' 3 light snow -3 NIL 24.1 poor&poor. 1200 OVC 0' 3 mod snow -3 NIL 24.1 " poor & poor. 1800 OVC 0' 1/4. light snow -6.5 8/090 24.3 " poor & poor. Dec. 22 0000 OVC 0' 100 m light snow -10 3/090 24.35 " poor & poor. 700 OVC 4,000 10 light snow -2 2/090 24.58 " fair & poor. 1200 SCT 4,000 10 -6 5/230 24.38 " good & fair. 1400 SCT 3,000 10 -3 Calm 24.3 " good & fair. Low cloud in Starshot. 1800 BKN 4,000 10 low cloud -6 Calm 23.6 5900 New location: 81°58'S, 158°32'E. Dec. 23 700 OVC 0' 5 light snow -3 Calm 23.55 " poor & poor. 1400 SCT 6,000 60 -4 Calm 23.58 " good & good. 1900 CLR 60 -6 Calm 23.55 " good & good. Dec. 24 700 CLR 60 -15 4/090 23.52 " 1000 CLR 60 -11 Calm 23.5 " Dec. 25 700 CLR 60 -11 NIL 23.5 5900 Dec. 26 700 SCT 15,000 60 -12 NIL 23.49 " Dec. 27 700 OVC 2,000 10 -11 Calm 23.61 " poor & poor. 2100 OVC 100 1 heavy snow -10 5/080 23.55 " poor & poor. Dec. 28 700 OVC 1500 5 -7 NIL 23.52 " 900 OVC 1500 5 light snow -7 2/000 23.56 " 1800 OVC 500 1 heavy snow -6 NIL 23.55 " Dec. 29 700 OVC 0' 1 light snow -10 NIL 23.5 " Dec. 30 700 OVC 0' 1/2. mod snow -12 15/180 23.55 " Dec. 31 700 OVC 2,000 10 blowing snow -11 15/160 23.5 " Jan. 1 700 OVC 500 2 mod snow -11 NIL 23.61 " 1200 OVC 500 2 mod snow -7 NIL 23.6 " Jan. 2 700 BKN 10,000 40 -10 4/110 23.61 " Jan. 3 700 CLR 60 -10 NIL 25.05 4300 New location: 81°52'S, 159°41'E Jan. 4 700 OVC 5,000 20 -6 NIL 25 " Jan. 5 700 SCT 8,000 60 -6 3/050 24.92 " Jan. 6 700 BKN 8,000 60 -4 2/180 24.3 5100 New location: 81°55'S, 158°30'E. 1330 SCT 8,000 60 -2 NIL 24.31 " good & good. 1500 SCT 5,000 60 -2 Calm 24.39 " Good & good. 1600 SCT 5,000 60 -9 Calm 24.45 " Good & good. 1700 SCT 4,000 60 -11 Calm 24.5 " Good & good. 1800 SCT 3,000 15 -10 Calm 24.5 " Good & good.