USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2026111212 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 12 12 -22.4 -26.6 28.57 4 6 17 228 -005 066058051 M20M18M18 000 01 12 13 -22.9 -27.2 28.56 5 6 19 230 013 068052051 M17M17M17 000 02 12 14 -20.5 -25.8 28.56 3 4 336 187 -003 063053053 M17M17M18 000 03 12 15 -19.6 -25.0 28.55 2 4 287 138 -008 062054057 M17M17M18 000 04 12 16 -19.3 -24.5 28.56 2 3 254 105 -002 063056058 M17M18M18 000 05 12 17 -19.0 -24.2 28.56 1 2 230 81 -009 064056053 M18M18M18 000 06 12 18 -18.8 -23.9 28.56 1 2 168 19 002 064057048 M18M18M18 000 07 12 19 -18.8 -23.8 28.56 2 2 170 21 002 065055047 M18M18M18 000 08 12 20 -18.9 -23.6 28.57 2 3 169 20 -002 066054048 M18M18M18 000 09 12 21 -18.9 -23.5 28.58 2 3 181 32 -002 067054047 M18M18M18 000 10 12 22 -19.0 -23.4 28.58 3 3 181 32 001 069055045 M17M18M18 000 11 12 23 -19.1 -23.3 28.59 3 4 161 12 -001 070054045 M17M18M18 000 12 13 00 -19.3 -23.2 28.59 4 4 149 360 -003 071051045 M18M18M18 000 13 13 01 -19.6 -23.4 28.59 4 4 135 346 -002 072049044 M18M18M18 000 14 13 02 -19.9 -23.7 28.59 4 4 103 314 -012 072048043 M18M18M18 000 15 13 03 -20.2 -24.3 28.60 4 5 66 277 -009 070047043 M17M18M18 000 16 13 04 -20.7 -24.7 28.60 5 5 55 266 003 071048044 M17M18M18 000 17 13 05 -20.7 -25.3 28.61 5 5 56 267 -002 067048044 M17M18M18 000 18 13 06 -20.1 -25.5 28.61 4 5 60 271 -009 062047045 M17M17M18 000 19 13 07 -19.9 -25.7 28.62 4 4 68 279 -012 060045046 M17M17M17 000 20 13 08 -20.0 -25.7 28.62 4 4 75 286 -004 061043046 M17M17M17 000 21 13 09 -19.9 -25.5 28.63 4 4 75 286 002 061043046 M17M17M17 000 22 13 10 -19.9 -25.3 28.63 4 4 77 288 -012 062046045 M16M17M17 000 23 13 11 -19.8 -25.1 28.63 4 4 76 287 -012 063048045 M16M17M17 000 24 13 12 -19.7 -25.2 28.63 4 4 65 276 -010 062050044 M16M17M17 000 25 13 13 -19.7 -25.3 28.64 4 5 47 258 -007 061050044 M16M17M17 000 26 13 14 -19.7 -25.3 28.65 4 5 25 236 -001 061048044 M16M16M17 000 27 13 15 -19.8 -25.2 28.65 5 5 4 215 -003 062046044 M16M16M17 000 28 13 16 -19.6 -24.9 28.66 5 6 350 201 -006 063048044 M16M16M17 000 29 13 17 -19.5 -24.7 28.67 5 6 343 194 -003 064048044 M16M17M17 000 30 13 18 -19.1 -24.3 28.68 4 5 340 191 005 064047044 M16M17M17 000 31 13 19 -18.7 -24.0 28.69 4 5 340 191 -001 063045045 M16M16M17 000 32 13 20 -18.3 -23.8 28.70 4 4 346 197 -010 062043046 M16M16M17 000 33 13 21 -18.1 -23.6 28.71 4 5 354 205 -012 062042047 M16M16M17 000 34 13 22 -17.9 -23.3 28.71 5 5 2 213 -010 063043047 M16M16M16 000 35 13 23 -17.7 -23.0 28.72 5 5 10 221 -008 063043046 M16M16M16 000 36 14 00 -17.6 -23.0 28.72 5 5 19 230 -006 063043045 M16M16M16 000 37 14 01 -18.1 -23.2 28.73 5 5 27 238 -002 064043044 M15M16M16 000 38 14 02 -17.8 -23.5 28.73 4 5 37 248 001 061043044 M15M16M16 000 39 14 03 -17.2 -23.9 28.73 3 3 53 264 -008 056043044 M15M16M16 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.