USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2025072800 AMPS 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 28 00 -35.9 -39.8 28.56 4 6 47 258 -002 064045040 M31M27M24 000 03 28 03 -35.4 -39.7 28.63 5 6 82 293 -019 065040039 M27M26M25 000 06 28 06 -34.5 -39.2 28.66 7 8 120 331 -031 062033043 M25M23M22 000 09 28 09 -31.7 -37.6 28.67 7 10 122 333 -007 056029041 M21M20M20 000 12 28 12 -29.5 -36.5 28.65 7 9 157 8 007 051024031 M20M18M18 000 15 28 15 -28.4 -35.3 28.66 6 7 182 33 030 052024024 M20M18M18 000 18 28 18 -26.9 -35.1 28.64 3 4 207 58 -017 046025025 M21M19M18 000 21 28 21 -31.7 -36.4 28.66 7 9 4 215 024 063027046 M23M20M19 000 24 29 00 -32.7 -37.2 28.69 7 12 3 214 019 064031054 M24M21M20 000 27 29 03 -33.8 -37.6 28.71 6 9 7 218 020 068039062 M25M23M22 001 30 29 06 -31.7 -35.7 28.74 4 7 4 215 003 068051068 M25M24M23 001 33 29 09 -30.2 -33.2 28.76 3 6 355 206 -014 075059072 M25M23M23 001 36 29 12 -30.4 -31.9 28.73 3 4 195 46 -002 087070070 M25M23M23 000 39 29 15 -31.1 -33.8 28.72 4 5 154 5 003 077066064 M24M23M23 000 42 29 18 -32.4 -35.7 28.69 6 7 176 27 -001 072057058 M25M24M23 000 45 29 21 -33.8 -37.0 28.65 6 7 175 26 -002 073052060 M25M24M23 000 48 30 00 -33.9 -36.9 28.60 6 7 190 41 -003 074052062 M26M24M23 000 51 30 03 -34.9 -37.5 28.56 6 6 188 39 -005 077055060 M27M24M23 000 54 30 06 -34.6 -37.2 28.50 4 4 190 41 002 077058058 M26M24M23 000 57 30 09 -34.4 -37.0 28.44 3 3 171 22 004 078060056 M28M25M23 000 60 30 12 -33.7 -36.2 28.35 3 3 78 289 007 078061055 M28M25M23 000 63 30 15 -37.0 -39.6 28.30 8 11 61 272 -006 077064059 M28M26M24 000 66 30 18 -37.1 -39.9 28.26 9 13 74 285 -001 076059068 M27M26M25 000 69 30 21 -38.2 -40.9 28.20 9 14 80 291 -001 076070080 M28M26M26 000 72 31 00 -38.7 -41.4 28.14 10 15 67 278 -006 075076075 M28M27M26 001 75 31 03 -38.8 -41.6 28.11 10 17 72 282 -000 075072070 M28M26M25 000 78 31 06 -37.9 -40.4 28.07 10 15 95 306 -016 077053043 M26M24M24 000 81 31 09 -35.9 -39.0 28.02 12 23 90 301 024 073051061 M25M22M21 000 84 31 12 -34.6 -38.1 27.96 11 21 97 308 059 071046042 M24M21M19 000 87 31 15 -33.5 -37.3 27.91 12 22 94 305 022 069039041 M23M20M18 000 90 31 18 -32.8 -36.7 27.90 8 17 86 297 035 068039041 M23M20M19 000 93 31 21 -33.0 -36.5 27.90 6 11 69 280 017 071040043 M23M22M20 000 96 01 00 -32.7 -36.3 27.92 7 8 53 264 -039 071043044 M26M24M22 000 99 01 03 -37.4 -40.8 27.97 9 12 39 250 012 071050042 M30M26M25 000 102 01 06 -41.7 -45.3 28.05 11 15 38 249 014 068062041 M34M30M27 000 105 01 09 -42.6 -46.2 28.13 12 20 32 243 014 068067047 M35M31M28 000 108 01 12 -43.1 -46.8 28.23 12 21 43 254 007 067074054 M37M32M30 001 111 01 15 -42.2 -45.9 28.32 13 23 35 246 009 067074073 M36M32M30 001 114 01 18 -40.2 -43.6 28.42 13 26 21 232 015 070072080 M35M33M31 003 117 01 21 -38.6 -41.8 28.48 9 19 42 253 -007 072071079 M34M32M30 005 120 02 00 -40.0 -43.1 28.50 10 16 79 290 003 072069078 M31M30M29 001 * 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.