USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2026091512 WRF 24km 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 15 12 -26.3 -30.2 28.97 8 10 69 280 -004 075059037 M22M21M21 000 03 15 15 -31.8 -34.0 28.85 11 17 87 298 -004 081044031 M22M21M21 000 06 15 18 -31.5 -35.0 28.69 14 25 89 300 -016 071034023 M21M20M20 000 09 15 21 -28.5 -31.5 28.47 16 29 110 321 -014 076036031 M19M19M19 000 12 16 00 -25.4 -30.1 28.29 17 31 113 324 018 064036041 M18M17M18 000 15 16 03 -24.4 -29.1 28.10 14 26 122 333 005 065023043 M16M16M16 000 18 16 06 -23.2 -26.6 27.96 13 23 117 328 -016 074042063 M16M15M16 001 21 16 09 -23.4 -26.7 27.86 11 19 127 338 002 074060072 M16M15M16 001 24 16 12 -23.3 -26.3 27.77 10 16 128 339 -008 077068080 M16M15M15 002 27 16 15 -22.9 -24.9 27.74 8 9 146 357 -002 084075080 M16M15M16 006 30 16 18 -24.0 -26.0 27.76 7 7 186 37 -007 084075074 M17M16M16 005 33 16 21 -26.7 -29.2 27.82 7 11 229 80 -001 080058063 M18M16M16 000 36 17 00 -27.7 -30.4 27.92 8 14 254 105 -001 078051034 M19M17M17 000 39 17 03 -30.7 -33.6 28.04 8 15 275 126 008 076046027 M22M19M17 000 42 17 06 -32.4 -36.1 28.19 11 23 263 114 -003 069053026 M25M21M19 000 45 17 09 -30.9 -35.7 28.33 13 29 267 118 -016 063070044 M26M24M23 000 48 17 12 -31.5 -36.4 28.48 13 28 276 127 008 062038056 M25M23M24 000 51 17 15 -32.3 -38.1 28.63 10 22 291 142 001 056026033 M23M23M23 000 54 17 18 -33.7 -38.8 28.75 8 18 306 157 003 060047047 M25M24M24 000 57 17 21 -32.0 -35.6 28.84 7 16 335 186 002 070053050 M25M24M24 000 60 18 00 -31.0 -34.6 28.86 7 11 31 242 006 071048050 M24M23M24 000 63 18 03 -33.1 -38.7 28.86 10 16 62 273 -016 057033034 M23M22M22 000 66 18 06 -32.7 -37.5 28.82 12 20 78 288 -013 062036025 M21M20M20 000 69 18 09 -30.1 -33.6 28.75 12 21 72 283 -013 071024021 M18M17M18 000 72 18 12 -25.5 -29.9 28.63 15 27 70 281 -003 067059066 M17M16M16 001 75 18 15 -23.6 -25.6 28.54 14 26 57 268 013 083087084 M17M15M16 024 78 18 18 -21.5 -23.2 28.49 12 23 33 243 042 086090086 M17M16M15 016 81 18 21 -21.9 -23.3 28.45 12 22 31 242 020 089089088 M16M15M15 012 84 19 00 -20.9 -22.0 28.39 13 25 30 241 014 090090088 M15M15M14 007 87 19 03 -18.3 -20.0 28.32 12 23 25 236 025 086081084 M14M14M13 016 90 19 06 -17.6 -19.4 28.24 11 20 35 246 020 086083085 M14M14M14 028 93 19 09 -18.9 -20.2 28.14 9 16 45 256 -010 089083084 M14M14M14 022 96 19 12 -18.9 -19.5 28.05 6 8 73 284 007 095082086 M13M13M14 003 99 19 15 -18.6 -19.9 28.00 8 11 95 306 -012 090089088 M13M14M14 008 102 19 18 -18.6 -20.0 27.96 8 11 82 293 -012 089088090 M13M14M14 015 105 19 21 -17.7 -19.1 27.92 5 7 64 275 -001 089086084 M13M14M14 012 108 20 00 -16.6 -18.0 27.91 4 4 55 266 003 090089081 M14M14M14 005 111 20 03 -18.7 -19.6 27.92 3 5 38 249 -000 093090084 M14M14M15 010 114 20 06 -20.0 -20.4 27.96 5 8 11 222 003 097088091 M14M14M15 005 117 20 09 -21.4 -22.2 28.01 7 13 336 187 006 093090090 M15M15M15 006 120 20 12 -21.0 -23.0 28.08 8 15 342 193 018 084087087 M16M16M16 017 * 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.