USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2025073112 AMPS 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 31 12 -34.9 -38.9 27.85 5 7 9 220 -004 063055065 M28M25M25 000 01 31 13 -35.7 -39.0 27.86 5 6 13 224 010 072055062 M26M25M24 001 02 31 14 -35.4 -38.6 27.87 6 6 6 217 003 072059066 M28M26M25 001 03 31 15 -37.5 -40.6 27.88 8 8 360 211 -006 072060069 M28M26M25 001 04 31 16 -38.5 -41.6 27.90 9 10 9 220 -016 072061074 M28M26M25 001 05 31 17 -38.4 -41.8 27.92 11 15 12 223 -006 071063074 M29M27M26 000 06 31 18 -40.2 -43.5 27.93 13 20 10 221 006 071060074 M29M26M25 000 07 31 19 -41.2 -44.2 27.97 14 20 12 223 019 073056074 M29M26M25 000 08 31 20 -42.0 -44.6 28.00 15 22 9 220 -025 075053074 M31M26M26 000 09 31 21 -41.7 -44.2 28.04 15 21 9 220 027 077053072 M31M27M26 000 10 31 22 -41.5 -43.9 28.08 14 21 11 222 044 078055070 M32M27M27 000 11 31 23 -41.3 -43.6 28.13 14 20 11 222 010 078056066 M32M28M28 001 12 01 00 -41.3 -43.6 28.17 15 21 11 222 021 078053062 M32M29M28 001 13 01 01 -41.6 -43.6 28.21 15 22 11 222 000 081051064 M33M29M28 002 14 01 02 -41.8 -43.6 28.25 15 23 12 223 -003 082052063 M33M29M28 002 15 01 03 -41.9 -43.7 28.30 15 22 12 223 -014 083057054 M33M29M28 001 16 01 04 -41.8 -43.5 28.33 13 19 12 223 -041 084058049 M32M29M28 001 17 01 05 -41.4 -43.0 28.37 12 18 14 225 -031 085055056 M32M29M29 000 18 01 06 -41.3 -42.8 28.41 12 18 15 226 016 085055052 M32M29M29 000 19 01 07 -41.1 -42.7 28.44 11 15 20 231 040 085059052 M32M30M30 000 20 01 08 -40.9 -42.4 28.48 10 13 25 236 063 085063050 M31M31M30 000 21 01 09 -40.6 -42.2 28.52 10 12 31 242 -004 085062050 M31M31M29 000 22 01 10 -40.1 -41.8 28.52 10 12 41 252 -001 084054051 M30M29M27 000 23 01 11 -39.7 -41.4 28.51 11 13 52 263 -000 084050053 M29M28M26 000 24 01 12 -39.1 -41.1 28.53 12 17 58 269 002 082047053 M28M26M26 000 25 01 13 -38.8 -41.1 28.54 14 21 58 269 -021 079045053 M27M25M24 000 26 01 14 -38.4 -41.3 28.54 15 24 61 272 -036 074042052 M26M24M23 000 27 01 15 -37.4 -40.9 28.54 17 26 64 275 016 070038048 M24M22M22 000 28 01 16 -36.3 -40.6 28.53 18 28 66 277 053 065038033 M24M22M21 000 29 01 17 -35.3 -40.2 28.52 19 29 68 279 078 061036027 M23M21M20 000 30 01 18 -34.2 -39.3 28.52 20 31 68 279 036 060030026 M22M19M19 000 31 01 19 -32.8 -37.5 28.50 21 33 66 277 051 063023053 M21M18M18 000 32 01 20 -31.6 -36.9 28.50 20 33 66 277 028 059029071 M19M17M17 000 33 01 21 -30.4 -37.3 28.49 19 33 69 280 025 051044067 M18M16M17 000 34 01 22 -29.7 -35.7 28.47 20 33 67 278 -025 056049058 M17M17M17 000 35 01 23 -29.3 -33.5 28.45 19 30 65 276 042 067054059 M17M16M17 000 36 02 00 -29.0 -32.2 28.44 18 28 66 277 -030 074054060 M17M16M17 000 37 02 01 -28.4 -30.8 28.41 17 27 68 279 -045 080056056 M17M16M16 000 38 02 02 -26.7 -29.0 28.37 18 28 77 288 048 081057063 M17M16M17 000 39 02 03 -25.4 -29.4 28.35 15 26 77 288 081 069070063 M16M17M17 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.