USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2026101712 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 17 12 -12.8 -19.2 28.23 10 10 77 288 -014 065045040 M12M09M09 000 01 17 13 -17.7 -21.0 28.23 11 14 78 289 035 075048044 M10M09M09 000 02 17 14 -17.5 -20.8 28.21 11 16 75 286 044 075048051 M09M09M09 000 03 17 15 -17.1 -20.8 28.21 12 18 73 284 018 073045050 M10M09M09 000 04 17 16 -17.2 -21.0 28.20 12 18 74 285 032 072040049 M10M09M09 000 05 17 17 -17.2 -21.1 28.21 11 17 75 286 040 072040049 M09M09M09 000 06 17 18 -17.3 -21.0 28.19 11 17 76 287 012 073042046 M10M09M09 000 07 17 19 -16.4 -20.5 28.17 11 16 74 285 028 071042046 M09M09M09 000 08 17 20 -15.7 -19.8 28.18 10 15 73 284 036 071045048 M09M09M09 000 09 17 21 -15.5 -19.5 28.18 9 15 75 286 031 072047049 M09M09M09 000 10 17 22 -15.7 -19.2 28.17 11 17 79 290 034 074051052 M11M10M10 000 11 17 23 -17.0 -20.1 28.17 13 18 72 282 039 077039050 M13M10M10 000 12 18 00 -18.8 -21.9 28.18 14 21 62 273 -016 076045042 M13M11M11 000 13 18 01 -19.5 -22.5 28.18 15 24 59 270 060 077044041 M13M11M10 000 14 18 02 -19.3 -22.7 28.19 16 24 59 270 022 075041042 M13M11M10 000 15 18 03 -19.1 -22.6 28.21 18 27 59 270 036 074044041 M13M11M10 000 16 18 04 -18.9 -21.9 28.22 19 29 57 268 013 078046043 M13M11M10 000 17 18 05 -18.9 -22.0 28.23 19 29 59 270 -071 076046049 M12M10M09 000 18 18 06 -18.8 -22.3 28.25 19 30 65 275 -082 073044048 M11M09M09 000 19 18 07 -18.6 -21.4 28.27 20 32 67 278 -139 078043052 M11M09M09 000 20 18 08 -18.4 -21.1 28.29 21 33 69 280 -159 080038056 M11M09M09 000 21 18 09 -18.8 -21.5 28.31 21 34 68 279 -141 079032049 M11M09M09 000 22 18 10 -19.2 -21.8 28.32 20 33 67 278 -082 080036047 M11M09M09 000 23 18 11 -19.4 -21.9 28.34 19 32 67 278 -086 081042051 M12M10M10 000 24 18 12 -19.7 -22.0 28.35 19 35 67 278 -105 082050056 M12M10M10 000 25 18 13 -19.1 -21.5 28.37 20 35 69 280 -046 081056056 M11M09M10 000 26 18 14 -18.8 -21.3 28.39 20 34 70 281 -032 081060057 M10M09M10 000 27 18 15 -18.9 -21.4 28.41 19 31 71 282 -075 080062055 M10M10M10 000 28 18 16 -18.5 -21.2 28.41 18 29 70 281 -118 080061051 M10M10M11 000 29 18 17 -18.0 -20.9 28.42 18 28 69 280 -084 079061046 M10M10M11 000 30 18 18 -18.1 -21.1 28.42 18 27 70 281 -048 077058040 M10M10M11 000 31 18 19 -18.0 -21.2 28.42 17 27 70 281 -027 076058036 M10M10M11 000 32 18 20 -17.9 -21.3 28.42 17 26 70 281 -006 075057036 M10M10M11 000 33 18 21 -17.6 -21.2 28.42 16 24 70 281 -014 074054034 M10M10M11 000 34 18 22 -17.3 -21.2 28.41 16 24 71 282 011 071051035 M10M10M11 000 35 18 23 -17.2 -21.3 28.40 15 24 71 282 -015 071037033 M11M10M10 000 36 19 00 -17.2 -20.7 28.40 16 24 73 284 -009 074029029 M11M10M10 000 37 19 01 -16.9 -20.5 28.39 15 24 73 284 038 074027029 M10M09M10 000 38 19 02 -16.8 -20.5 28.38 15 25 77 288 073 073029031 M10M09M10 000 39 19 03 -16.9 -20.6 28.37 14 24 75 286 086 073029030 M09M09M10 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.