USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2026050100 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 01 00 -32.1 -37.5 28.91 10 11 95 306 -010 061055051 M29M29M28 000 01 01 01 -36.5 -39.8 28.89 11 16 91 302 -036 071051045 M29M28M28 000 02 01 02 -36.4 -39.8 28.87 12 18 86 297 -036 071047041 M29M28M27 000 03 01 03 -36.3 -39.6 28.87 13 21 88 299 -033 071043035 M28M27M27 000 04 01 04 -36.4 -39.6 28.85 14 22 87 298 -033 072039031 M28M27M26 000 05 01 05 -36.4 -40.0 28.83 15 23 92 303 -024 069037026 M28M26M26 000 06 01 06 -36.0 -40.3 28.82 15 23 100 311 -017 064034023 M27M26M25 000 07 01 07 -35.4 -40.2 28.82 17 26 104 315 -026 062032020 M27M25M25 000 08 01 08 -35.2 -40.1 28.80 18 29 109 320 -022 061031018 M27M25M24 000 09 01 09 -35.3 -40.2 28.78 18 31 114 325 -024 060029016 M27M25M24 000 10 01 10 -35.1 -40.2 28.75 19 32 114 325 -035 059027014 M26M25M23 000 11 01 11 -34.9 -40.3 28.72 19 33 114 325 -027 058024012 M26M24M22 000 12 01 12 -34.5 -40.3 28.70 19 32 115 326 -015 056021012 M25M23M22 000 13 01 13 -34.1 -40.2 28.67 19 31 117 328 -017 054019011 M25M22M21 000 14 01 14 -33.7 -40.0 28.64 19 32 120 331 -017 053016011 M24M21M19 000 15 01 15 -33.1 -39.6 28.61 19 33 121 332 009 052014011 M23M19M18 000 16 01 16 -32.5 -39.1 28.58 19 33 120 331 -004 052013010 M22M19M17 000 17 01 17 -31.6 -38.4 28.56 19 33 120 331 018 051011010 M21M18M17 000 18 01 18 -30.5 -37.7 28.53 19 33 119 330 029 049009009 M19M17M16 000 19 01 19 -29.7 -37.0 28.50 19 33 122 333 -015 049008008 M18M16M15 000 20 01 20 -29.0 -36.1 28.47 18 32 120 331 038 050007007 M17M15M15 000 21 01 21 -28.1 -34.9 28.46 17 31 121 332 -015 052007010 M16M15M14 000 22 01 22 -27.3 -31.3 28.43 16 29 120 331 -033 068022029 M15M14M14 000 23 01 23 -26.2 -30.1 28.41 17 29 121 332 -112 069036031 M14M13M13 000 24 02 00 -25.4 -28.9 28.38 17 28 111 322 -031 072042034 M13M12M12 000 25 02 01 -24.0 -26.2 28.36 16 25 110 321 007 082048069 M11M10M10 000 26 02 02 -23.0 -25.8 28.37 17 28 82 293 023 078069068 M13M12M12 000 27 02 03 -23.3 -26.0 28.37 18 31 67 278 -004 078067067 M12M11M11 000 28 02 04 -22.0 -25.6 28.38 19 31 65 276 019 072063058 M12M11M10 000 29 02 05 -21.9 -25.5 28.38 18 27 59 270 018 073060050 M11M11M10 000 30 02 06 -21.3 -24.6 28.39 16 26 52 263 036 075059041 M11M11M10 000 31 02 07 -20.1 -23.1 28.39 14 21 49 260 025 077053043 M11M10M10 000 32 02 08 -21.5 -24.2 28.40 15 23 66 277 067 078050047 M11M10M10 000 33 02 09 -21.5 -24.7 28.41 13 21 62 273 016 076046067 M10M09M10 000 34 02 10 -21.7 -25.1 28.40 14 23 63 274 066 074055057 M10M09M10 000 35 02 11 -22.9 -26.1 28.39 13 22 74 285 097 075039042 M10M10M10 000 36 02 12 -23.9 -27.3 28.39 11 19 89 300 125 073040048 M12M11M11 000 37 02 13 -24.4 -27.7 28.39 14 23 89 300 049 074041036 M13M12M11 000 38 02 14 -23.8 -27.1 28.37 17 28 78 289 084 074042035 M13M12M12 000 39 02 15 -23.7 -26.7 28.36 19 34 73 284 009 076044033 M14M13M13 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.