USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2025072700 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 27 00 -37.2 -41.4 28.14 5 6 108 319 -005 068049038 M31M26M25 000 01 27 01 -38.9 -42.4 28.12 8 10 84 295 -019 070047037 M28M26M25 000 02 27 02 -37.3 -41.1 28.10 8 10 67 278 -016 068046049 M27M26M25 000 03 27 03 -37.7 -41.3 28.11 10 13 58 269 -003 069047064 M28M26M25 000 04 27 04 -38.2 -41.7 28.13 10 13 43 254 -018 069049072 M29M27M26 000 05 27 05 -38.4 -42.0 28.14 10 13 20 231 -004 068051079 M28M27M26 000 06 27 06 -37.3 -41.1 28.16 7 9 10 221 009 068053083 M29M28M28 000 07 27 07 -36.9 -40.7 28.16 6 8 2 213 010 067056083 M29M29M28 000 08 27 08 -36.8 -40.6 28.19 6 7 356 207 -012 068058086 M30M30M28 000 09 27 09 -38.0 -41.5 28.20 7 8 357 208 019 070059087 M31M30M28 000 10 27 10 -40.1 -43.1 28.21 11 14 8 219 005 073060077 M31M30M28 000 11 27 11 -41.3 -44.1 28.22 12 17 14 225 001 074063065 M33M30M29 001 12 27 12 -41.9 -44.6 28.24 13 19 19 230 028 075067056 M33M30M28 001 13 27 13 -42.5 -45.0 28.27 14 21 26 237 003 076070054 M33M29M28 001 14 27 14 -42.9 -45.5 28.30 15 22 29 240 007 076071052 M33M29M27 000 15 27 15 -43.2 -45.6 28.34 15 23 33 244 005 077068043 M33M29M27 000 16 27 16 -43.1 -45.3 28.37 16 23 34 245 -041 079062042 M33M29M27 000 17 27 17 -43.4 -45.5 28.41 16 24 40 251 -088 080055044 M32M28M26 000 18 27 18 -43.3 -45.3 28.44 16 24 41 252 -110 081052044 M32M28M26 000 19 27 19 -43.1 -45.1 28.46 16 24 40 251 -091 081049044 M31M27M26 000 20 27 20 -42.8 -44.9 28.49 15 23 39 250 -106 080048045 M31M27M26 000 21 27 21 -42.2 -44.1 28.51 14 21 39 250 -138 082048039 M30M27M26 000 22 27 22 -40.8 -42.7 28.52 13 19 39 250 -132 082047037 M29M26M25 000 23 27 23 -39.8 -41.8 28.52 12 16 41 252 -126 081046038 M28M26M25 000 24 28 00 -38.6 -40.8 28.53 10 13 43 254 -099 080047042 M27M26M26 000 25 28 01 -37.9 -40.2 28.54 10 12 52 263 -074 079047043 M27M26M26 000 26 28 02 -37.0 -39.6 28.55 9 10 63 274 -077 076046040 M27M26M25 000 27 28 03 -36.7 -39.7 28.56 9 11 72 283 -087 074044038 M26M25M25 000 28 28 04 -36.6 -39.8 28.56 10 13 77 288 -055 072041039 M26M25M24 000 29 28 05 -36.5 -39.9 28.57 10 14 79 290 -029 071038037 M25M24M24 000 30 28 06 -35.3 -39.4 28.57 10 13 79 290 -028 066036034 M24M23M23 000 31 28 07 -32.8 -38.2 28.56 8 10 90 301 -046 059034030 M23M22M22 000 32 28 08 -32.7 -38.2 28.56 9 12 112 323 -041 058033029 M23M22M22 000 33 28 09 -33.6 -38.6 28.56 11 15 114 325 003 061031026 M22M21M20 000 34 28 10 -33.2 -38.3 28.55 11 16 112 323 013 060029022 M21M20M19 000 35 28 11 -31.3 -37.2 28.54 9 14 118 329 039 056025021 M20M18M18 000 36 28 12 -30.6 -36.8 28.53 9 14 125 336 018 055025022 M19M18M18 000 37 28 13 -30.0 -36.5 28.53 8 13 129 340 -004 053026022 M20M19M19 000 38 28 14 -28.0 -36.2 28.52 7 11 133 344 009 046025021 M19M18M18 000 39 28 15 -27.3 -36.1 28.51 7 9 131 342 021 043025022 M18M18M18 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.