USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2025122212 WRF thwaites domain FCST UTC UTC T Td Altim Spd Gust Dir Grid VVV RH1RH2RH3 T1T2T3 ACCUM HR DAY HR (C) (C) (in Hg)(kts)(kts)(deg)(deg) (*) (% wrt water) (C) (*) 00 22 12 -14.9 -17.1 29.11 4 5 263 114 004 088088078 M14M14M15 000 01 22 13 -15.8 -17.5 29.10 4 5 260 111 006 087085068 M14M14M15 000 02 22 14 -15.5 -17.0 29.09 4 5 259 110 013 088077060 M14M14M15 000 03 22 15 -15.1 -16.6 29.08 3 5 246 97 021 089068055 M14M14M15 000 04 22 16 -14.9 -16.2 29.08 3 5 231 82 018 090061048 M14M14M15 000 05 22 17 -14.7 -16.0 29.07 3 4 200 51 001 090055044 M14M14M15 000 06 22 18 -14.4 -15.8 29.08 3 4 156 7 -009 089049045 M14M15M15 000 07 22 19 -14.3 -16.0 29.07 3 4 109 320 -014 087045048 M14M15M15 000 08 22 20 -14.0 -16.3 29.07 3 5 82 293 -012 083042049 M14M15M15 000 09 22 21 -13.9 -16.9 29.07 3 4 68 279 -007 078042047 M14M15M16 000 10 22 22 -13.9 -16.9 29.06 3 4 74 285 -007 078044045 M15M15M16 000 11 22 23 -13.9 -17.1 29.05 3 4 86 297 -005 077046045 M15M15M16 000 12 23 00 -14.0 -17.4 29.04 4 5 103 314 -001 076049041 M15M15M16 000 13 23 01 -14.2 -17.3 29.05 6 7 107 318 -000 077051039 M15M16M16 000 14 23 02 -14.5 -17.7 29.05 7 9 109 320 -001 077052040 M16M16M16 000 15 23 03 -14.9 -17.8 29.05 7 9 109 320 018 078051040 M16M16M16 000 16 23 04 -15.3 -18.3 29.05 8 10 108 319 020 078047042 M15M16M16 000 17 23 05 -15.7 -18.7 29.04 7 10 111 322 018 078045045 M15M16M16 000 18 23 06 -16.1 -19.0 29.04 7 10 118 329 015 078043048 M15M16M16 000 19 23 07 -16.5 -19.5 29.04 7 10 128 339 020 078041051 M15M16M16 000 20 23 08 -17.0 -20.0 29.04 7 10 138 349 021 077042053 M15M16M16 000 21 23 09 -17.4 -20.4 29.05 7 11 144 355 021 078044054 M16M16M16 000 22 23 10 -17.8 -20.6 29.04 7 11 146 357 020 078047053 M16M16M16 000 23 23 11 -18.0 -20.8 29.03 7 10 149 0 016 079049051 M16M16M17 000 24 23 12 -18.0 -20.8 29.02 7 10 152 3 013 078049052 M16M16M17 000 25 23 13 -17.8 -20.7 29.02 7 10 154 5 025 078050055 M16M16M17 000 26 23 14 -17.4 -20.3 29.02 6 9 158 9 035 078050057 M16M16M17 000 27 23 15 -17.2 -20.0 29.02 6 9 164 15 033 079050058 M16M16M17 000 28 23 16 -17.0 -19.6 29.02 6 8 170 21 027 080051058 M16M16M17 000 29 23 17 -16.7 -19.1 29.01 5 8 175 25 026 082051057 M16M16M17 000 30 23 18 -16.3 -18.7 29.01 5 7 178 29 021 082053058 M16M16M17 000 31 23 19 -16.0 -18.4 29.00 6 7 177 28 021 082055059 M16M17M17 000 32 23 20 -15.7 -18.0 28.99 6 7 174 25 012 082054060 M16M17M17 000 33 23 21 -15.5 -18.1 28.98 7 9 165 16 -004 081049061 M16M17M17 000 34 23 22 -15.4 -18.1 28.98 7 9 160 11 -006 080052054 M16M17M17 000 35 23 23 -15.3 -17.9 28.98 7 8 154 5 -009 081052042 M17M17M17 000 36 24 00 -15.3 -18.0 28.98 7 8 150 1 -017 080056042 M17M17M17 000 37 24 01 -15.3 -17.9 28.97 8 9 149 0 -013 080069046 M17M17M17 000 38 24 02 -15.4 -18.0 28.97 9 9 150 1 -011 081064046 M17M17M17 000 39 24 03 -15.7 -18.2 28.96 9 12 151 2 -015 082060044 M17M16M17 000 * NOTES on units: VVV (vertical velocity) is given as tenths of a microbar per second at 700 hPa, with positive values indicating upward motion; ACCUM (accumulated precipitation, past 3h) is given as hundredths of a millimeter; RH1, RH2, and RH3 are the % RH at the surface, 1000', and 3000', respectively; T1, T2, and T3 are the temperatures at 500', 1000', and 1500', respectively. Gust is estimated according to the NCEP HRRR gust algorithm.