USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2025072900 AMPS 8km 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 29 00 -26.0 -31.4 28.65 7 8 311 162 001 067072070 M25M23M22 000 03 29 03 -30.6 -33.5 28.67 7 11 336 187 010 076069074 M25M24M23 001 06 29 06 -31.6 -33.9 28.72 6 9 4 215 -003 080073081 M25M25M24 000 09 29 09 -29.5 -31.3 28.75 4 5 19 230 -007 084080073 M25M25M24 000 12 29 12 -30.1 -31.6 28.72 5 6 141 352 -018 087082070 M25M24M24 000 15 29 15 -32.0 -34.2 28.72 7 10 117 328 003 081074062 M24M23M24 000 18 29 18 -30.2 -33.7 28.67 6 7 131 342 003 071060051 M23M23M23 000 21 29 21 -32.4 -35.4 28.65 9 12 162 13 002 075056046 M25M23M22 000 24 30 00 -31.4 -36.0 28.57 6 8 164 15 -001 064055063 M24M22M21 000 27 30 03 -32.2 -36.5 28.54 5 6 153 4 007 065048048 M24M22M22 000 30 30 06 -30.0 -35.0 28.48 3 4 109 320 -022 062048046 M24M22M21 000 33 30 09 -32.0 -35.7 28.43 8 9 88 299 -003 070045051 M23M21M20 000 36 30 12 -30.0 -34.4 28.34 8 10 88 299 -000 065042056 M21M20M19 000 39 30 15 -30.4 -32.2 28.29 9 13 92 303 -020 085048055 M21M20M19 000 42 30 18 -30.7 -33.0 28.23 9 14 101 312 -012 081053055 M20M19M19 000 45 30 21 -30.8 -34.5 28.15 10 16 129 340 024 070042031 M18M18M18 000 48 31 00 -33.9 -38.5 28.09 13 23 81 292 024 063026021 M19M18M17 000 51 31 03 -33.7 -37.3 28.06 15 27 84 295 012 070045046 M21M19M19 000 54 31 06 -33.5 -37.1 28.03 16 27 84 295 026 070047050 M22M20M20 000 57 31 09 -34.1 -37.8 28.00 15 29 80 291 008 070045046 M24M21M20 000 60 31 12 -34.1 -37.9 27.97 15 26 86 297 018 068044047 M23M20M20 000 63 31 15 -34.7 -38.8 27.96 12 23 80 291 010 066039045 M22M20M19 000 66 31 18 -34.8 -39.1 27.97 6 11 80 291 -006 065040049 M23M21M20 000 69 31 21 -34.4 -38.6 27.97 6 8 41 252 -015 066042050 M24M22M20 000 72 01 00 -37.3 -40.7 28.00 9 13 23 234 -004 071047050 M27M24M21 000 75 01 03 -38.6 -42.1 28.04 11 18 21 232 -002 070054054 M28M24M22 000 78 01 06 -39.3 -42.8 28.11 12 20 23 234 -013 069065055 M30M25M24 000 81 01 09 -39.1 -42.5 28.18 14 24 31 242 -016 070073056 M31M26M24 001 84 01 12 -38.7 -42.0 28.23 13 22 34 245 -004 071068062 M29M25M24 001 87 01 15 -37.1 -40.1 28.28 11 19 49 260 -029 073068064 M28M25M23 000 90 01 18 -35.5 -38.3 28.29 12 19 66 277 -008 076055050 M24M22M21 000 93 01 21 -34.2 -37.2 28.29 13 23 74 285 -021 074049040 M21M20M19 000 96 02 00 -31.8 -35.0 28.27 12 21 82 293 018 074041020 M18M18M18 000 99 02 03 -30.2 -33.8 28.24 12 21 88 299 -010 071032018 M17M17M18 000 102 02 06 -28.2 -32.0 28.19 13 22 89 300 077 070031037 M17M17M17 000 105 02 09 -25.4 -29.3 28.11 17 28 77 288 -000 070062072 M16M16M17 000 108 02 12 -25.0 -27.2 28.02 17 30 87 298 -067 082080068 M20M19M19 000 111 02 15 -24.8 -28.1 27.95 19 31 81 292 -087 074054069 M22M21M21 000 114 02 18 -26.4 -29.4 27.86 20 33 78 289 002 076062055 M21M20M20 000 117 02 21 -30.6 -33.1 27.87 14 24 59 270 014 079074071 M21M21M21 000 120 03 00 -31.1 -33.5 27.88 16 28 48 259 -022 080087059 M22M21M21 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.