USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2025122312 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 23 12 -17.8 -21.8 29.08 7 8 166 17 004 079047049 M16M16M17 000 01 23 13 -20.1 -23.1 29.06 6 8 169 20 031 077047052 M16M16M17 000 02 23 14 -19.8 -22.8 29.06 6 9 178 29 015 077051057 M16M16M17 000 03 23 15 -19.4 -22.2 29.07 6 9 184 35 016 078053060 M16M16M17 000 04 23 16 -19.0 -21.7 29.06 6 9 185 36 022 079058062 M17M17M18 000 05 23 17 -18.8 -21.2 29.06 6 9 187 37 033 081060060 M17M17M18 000 06 23 18 -18.4 -20.7 29.06 5 7 172 23 010 082057057 M17M17M18 000 07 23 19 -17.8 -20.2 29.05 4 6 164 15 -012 081054053 M17M17M18 000 08 23 20 -17.2 -19.8 29.04 4 5 169 20 -024 080051048 M16M17M18 000 09 23 21 -16.8 -19.4 29.03 4 6 173 24 -016 080051045 M16M17M18 000 10 23 22 -16.6 -19.1 29.02 5 6 173 24 -006 081052044 M17M17M18 000 11 23 23 -16.6 -18.9 29.01 6 7 164 15 -013 082054049 M17M17M18 000 12 24 00 -16.7 -19.0 29.00 7 8 147 358 -011 082060055 M17M17M18 000 13 24 01 -16.8 -19.0 29.00 7 8 139 350 -011 083064050 M17M17M18 000 14 24 02 -16.8 -19.0 29.00 7 9 138 349 -004 083055043 M16M16M17 000 15 24 03 -17.0 -19.3 29.00 9 14 134 345 -002 082052032 M16M16M16 000 16 24 04 -17.2 -19.3 28.99 10 15 131 342 013 083082046 M15M15M16 000 17 24 05 -17.4 -19.7 28.98 9 15 133 344 031 082051049 M15M14M15 000 18 24 06 -17.8 -20.3 28.97 10 17 137 348 024 081033043 M14M14M14 000 19 24 07 -18.2 -20.3 28.97 11 18 141 352 027 083029034 M14M14M14 000 20 24 08 -18.3 -20.2 28.96 11 18 145 356 015 085028061 M15M14M13 000 21 24 09 -18.3 -20.1 28.96 11 20 146 357 011 086039057 M14M13M13 000 22 24 10 -18.2 -20.3 28.95 10 19 143 354 023 083049045 M13M12M13 000 23 24 11 -17.7 -20.4 28.94 10 18 136 347 026 080058054 M12M12M13 000 24 24 12 -17.3 -19.8 28.94 9 16 131 342 045 081062038 M11M12M13 000 25 24 13 -16.8 -19.1 28.94 10 15 113 324 026 083063036 M12M12M13 000 26 24 14 -16.3 -18.6 28.95 10 16 86 297 027 083042034 M12M12M13 000 27 24 15 -15.6 -18.6 28.96 11 17 72 283 034 078044030 M13M13M13 000 28 24 16 -15.2 -19.0 28.97 13 20 72 283 043 073053026 M13M13M13 000 29 24 17 -15.9 -19.0 28.98 13 20 68 279 037 077051031 M13M13M12 000 30 24 18 -15.9 -18.3 28.98 12 19 65 276 028 082044027 M14M13M13 000 31 24 19 -15.8 -18.1 29.00 11 18 66 277 042 083036031 M14M13M12 000 32 24 20 -15.6 -17.8 29.00 11 17 64 275 042 083031023 M14M13M12 000 33 24 21 -15.5 -17.8 29.01 11 16 62 273 036 083025020 M14M13M12 000 34 24 22 -15.3 -17.8 29.01 11 15 63 274 041 082024020 M14M12M12 000 35 24 23 -15.1 -17.6 29.02 10 14 65 276 059 081024023 M13M12M11 000 36 25 00 -14.8 -17.5 29.03 9 12 69 280 051 079025023 M13M11M11 000 37 25 01 -14.2 -17.5 29.04 8 11 74 285 034 076024031 M12M11M11 000 38 25 02 -13.7 -17.7 29.04 9 12 76 287 035 071025037 M11M10M10 000 39 25 03 -13.3 -18.0 29.05 9 13 76 287 039 068029040 M10M10M10 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.