USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2026042700 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 27 00 -22.6 -28.0 28.51 12 13 70 281 -015 065037037 M20M18M18 000 01 27 01 -23.8 -27.5 28.50 13 18 76 287 070 071039051 M19M17M17 006 02 27 02 -24.7 -28.8 28.47 15 23 82 293 084 069039057 M18M17M17 007 03 27 03 -24.5 -28.7 28.43 17 27 81 292 062 069045057 M19M17M17 008 04 27 04 -24.4 -28.2 28.42 19 30 74 285 059 071048063 M19M17M17 003 05 27 05 -24.3 -28.2 28.39 19 30 71 282 052 071063084 M19M17M17 003 06 27 06 -24.1 -27.8 28.37 18 28 66 277 048 071080079 M18M17M17 005 07 27 07 -23.3 -26.7 28.34 16 27 61 272 062 074082076 M17M17M17 005 08 27 08 -22.6 -26.0 28.32 15 25 59 270 065 073082075 M17M16M16 004 09 27 09 -21.9 -25.4 28.31 14 23 60 271 046 074082076 M16M16M16 003 10 27 10 -21.1 -24.3 28.28 13 22 58 269 045 076083078 M16M16M16 005 11 27 11 -20.5 -23.2 28.26 14 22 56 266 017 080082078 M16M16M16 011 12 27 12 -20.2 -22.7 28.24 14 23 54 265 046 081081076 M16M16M17 018 13 27 13 -20.1 -22.3 28.23 14 23 52 263 -016 082084075 M16M16M17 027 14 27 14 -20.2 -22.3 28.23 14 22 41 252 -054 084082080 M16M17M18 035 15 27 15 -20.4 -23.0 28.22 13 23 22 233 -058 080066076 M16M17M18 028 16 27 16 -21.3 -23.7 28.22 16 31 25 236 -033 081072079 M18M19M20 015 17 27 17 -22.3 -24.9 28.21 15 29 11 222 -033 080075068 M19M20M21 001 18 27 18 -23.0 -25.1 28.21 13 27 3 214 006 083065065 M20M21M22 001 19 27 19 -24.9 -26.6 28.20 13 29 14 225 -164 086070072 M22M23M23 001 20 27 20 -25.7 -27.8 28.20 15 31 13 224 -225 083071071 M23M24M24 001 21 27 21 -26.4 -28.7 28.21 16 29 11 222 -150 081071069 M25M26M26 002 22 27 22 -27.9 -30.3 28.22 14 24 15 226 -139 080075070 M26M27M27 002 23 27 23 -29.2 -31.8 28.22 14 23 19 230 -189 078074063 M28M29M29 001 24 28 00 -30.1 -33.0 28.22 17 29 24 235 -266 076075057 M29M30M30 000 25 28 01 -31.1 -34.1 28.21 21 33 24 235 -276 075068053 M30M31M31 000 26 28 02 -32.1 -35.5 28.22 21 35 24 235 -179 072069054 M31M32M32 000 27 28 03 -32.7 -36.2 28.23 23 36 24 235 -149 071070053 M32M33M32 000 28 28 04 -33.4 -36.7 28.24 22 36 26 236 -088 072072053 M32M33M33 000 29 28 05 -34.0 -37.2 28.26 19 33 26 237 034 073079054 M33M34M34 000 30 28 06 -34.5 -37.4 28.28 19 31 32 243 -012 075081057 M33M34M34 000 31 28 07 -35.0 -37.5 28.28 20 31 37 248 -039 078077055 M33M34M34 000 32 28 08 -35.2 -37.6 28.30 21 33 32 243 -017 079075058 M33M34M34 000 33 28 09 -35.4 -37.9 28.31 21 33 30 241 055 078072058 M33M33M33 000 34 28 10 -35.5 -38.2 28.33 20 32 29 240 121 076073059 M33M33M33 000 35 28 11 -35.8 -38.6 28.35 17 29 31 242 125 075074062 M33M33M33 000 36 28 12 -36.1 -38.7 28.36 15 27 37 248 088 077072062 M33M33M33 000 37 28 13 -37.1 -39.5 28.36 14 23 52 263 082 078066060 M32M32M32 000 38 28 14 -37.6 -39.8 28.37 14 22 63 274 124 080061058 M32M31M32 000 39 28 15 -37.2 -39.6 28.38 15 23 62 273 161 079067054 M32M32M32 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.