USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2026101412 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 14 12 -21.2 -26.7 28.57 12 13 17 228 -015 074041013 M19M16M15 000 01 14 13 -23.9 -27.7 28.59 11 15 30 241 040 071036014 M17M16M15 000 02 14 14 -23.5 -26.8 28.60 11 17 28 239 055 074034017 M17M15M15 000 03 14 15 -23.4 -26.3 28.61 12 18 29 240 094 077033019 M17M15M14 000 04 14 16 -23.2 -26.4 28.63 13 21 31 242 109 075029017 M16M15M14 000 05 14 17 -23.2 -26.6 28.65 14 22 34 245 093 074028017 M17M15M14 000 06 14 18 -22.8 -26.2 28.68 14 21 30 241 096 073029020 M17M15M14 000 07 14 19 -22.3 -26.0 28.68 13 20 26 237 095 072028024 M16M14M14 000 08 14 20 -21.7 -25.9 28.70 12 18 26 237 115 069030025 M16M15M14 000 09 14 21 -21.3 -25.9 28.72 11 18 22 233 077 067031026 M16M15M14 000 10 14 22 -21.0 -25.8 28.73 10 16 18 229 095 065032026 M16M15M14 000 11 14 23 -21.0 -26.1 28.74 9 13 27 238 048 064034027 M16M14M14 000 12 15 00 -21.0 -26.3 28.75 8 11 40 251 021 063035027 M16M15M14 000 13 15 01 -21.5 -26.0 28.77 9 13 49 260 006 067037027 M16M15M14 000 14 15 02 -21.7 -25.7 28.78 10 15 52 263 -007 070038027 M16M15M14 000 15 15 03 -21.8 -26.1 28.79 10 15 43 254 -015 068036027 M16M14M13 000 16 15 04 -21.7 -26.5 28.79 10 15 32 243 -005 065032027 M14M13M12 000 17 15 05 -21.8 -27.1 28.79 10 14 26 237 -029 063031027 M14M12M12 000 18 15 06 -21.9 -27.5 28.80 9 12 33 244 -054 061032027 M14M13M13 000 19 15 07 -20.9 -27.5 28.82 7 10 23 234 -057 055032028 M14M13M13 000 20 15 08 -20.0 -27.4 28.82 7 8 23 234 -028 052031027 M13M13M13 000 21 15 09 -20.3 -27.5 28.83 7 9 33 244 -011 053029028 M13M13M13 000 22 15 10 -20.7 -27.6 28.83 8 10 30 241 007 054027028 M13M12M13 000 23 15 11 -20.5 -27.6 28.83 8 11 19 230 014 053025028 M13M12M12 000 24 15 12 -19.8 -27.4 28.83 7 10 4 215 -013 051024030 M12M12M12 000 25 15 13 -18.5 -27.2 28.83 5 7 351 202 -036 047026032 M13M12M13 000 26 15 14 -17.9 -27.0 28.84 3 5 311 162 014 045027035 M13M13M13 000 27 15 15 -18.0 -26.8 28.84 2 3 210 61 003 046027036 M13M13M13 000 28 15 16 -18.1 -26.5 28.84 3 3 117 328 -009 048025036 M13M12M12 000 29 15 17 -17.8 -26.4 28.84 4 5 92 303 -003 047025039 M12M12M12 000 30 15 18 -17.0 -26.5 28.84 4 5 72 283 -006 044025044 M12M12M12 000 31 15 19 -16.3 -26.4 28.83 4 4 59 270 -007 041025049 M12M12M12 000 32 15 20 -15.8 -26.3 28.83 3 3 68 279 -007 040026054 M12M12M12 000 33 15 21 -15.6 -26.2 28.82 2 2 112 323 -006 040027056 M12M12M12 000 34 15 22 -16.4 -26.0 28.81 4 5 140 351 -003 043028058 M13M12M12 000 35 15 23 -17.8 -25.5 28.80 5 7 121 332 -006 051028060 M12M12M12 000 36 16 00 -18.5 -24.0 28.80 6 8 116 327 -000 062028062 M12M12M12 000 37 16 01 -18.8 -22.9 28.79 7 9 115 326 -012 070033068 M12M12M12 000 38 16 02 -18.8 -22.0 28.77 7 9 114 325 -018 076045072 M12M12M12 000 39 16 03 -18.6 -21.4 28.76 7 10 126 337 -009 078065059 M12M12M12 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.