USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2025072600 AMPS 2p67km 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 26 00 -36.8 -41.1 28.29 4 5 80 291 -006 067053037 M33M28M26 000 01 26 01 -38.6 -42.3 28.30 4 5 48 259 011 068049035 M29M26M25 000 02 26 02 -37.4 -41.2 28.31 4 5 34 245 -023 068053039 M29M27M27 000 03 26 03 -37.7 -41.2 28.25 4 5 9 220 004 069056040 M31M28M27 000 04 26 04 -38.7 -42.0 28.28 5 5 36 247 005 071059043 M32M29M27 000 05 26 05 -42.4 -45.3 28.26 9 9 38 249 -010 073061043 M33M29M27 000 06 26 06 -43.4 -46.6 28.26 10 13 37 248 -007 071061044 M32M28M27 000 07 26 07 -43.5 -46.7 28.25 11 14 36 247 -000 070062043 M31M28M27 000 08 26 08 -43.4 -46.6 28.25 11 14 38 249 -007 070066044 M31M29M28 000 09 26 09 -43.6 -46.9 28.25 12 15 38 249 -010 070069046 M31M30M29 000 10 26 10 -44.2 -47.5 28.23 12 17 37 248 -006 069071047 M32M30M28 000 11 26 11 -44.4 -47.8 28.21 13 18 34 245 -013 069071046 M32M30M28 000 12 26 12 -44.6 -48.0 28.19 13 18 35 246 -010 069071046 M32M30M28 000 13 26 13 -44.6 -48.0 28.20 13 19 34 245 -009 069070043 M32M29M28 000 14 26 14 -45.2 -48.5 28.20 13 20 35 246 010 069069042 M32M29M28 000 15 26 15 -45.1 -48.5 28.20 13 20 37 248 022 069067041 M32M29M28 000 16 26 16 -44.2 -47.5 28.19 13 19 35 246 013 070065039 M31M28M28 000 17 26 17 -43.4 -46.7 28.19 13 18 35 246 -005 070062040 M31M28M27 000 18 26 18 -42.9 -46.0 28.17 12 17 33 244 -039 071060039 M30M27M27 000 19 26 19 -42.1 -45.0 28.17 10 13 28 239 -012 073059037 M29M27M27 000 20 26 20 -40.5 -43.0 28.18 8 9 40 251 012 076065038 M29M29M27 000 21 26 21 -39.3 -41.7 28.18 7 8 52 263 035 078068038 M30M29M27 000 22 26 22 -39.3 -41.6 28.16 8 9 49 260 063 078061034 M29M27M25 000 23 26 23 -37.2 -39.5 28.16 6 7 49 260 -013 079056032 M28M26M25 000 24 27 00 -35.8 -38.1 28.15 4 4 71 282 002 080060032 M29M27M25 000 25 27 01 -35.4 -37.5 28.15 4 5 106 317 025 081058035 M28M26M25 000 26 27 02 -38.0 -40.2 28.16 8 11 112 323 -006 080057036 M29M26M24 000 27 27 03 -35.4 -37.8 28.14 6 8 90 301 -007 079053038 M26M25M24 000 28 27 04 -34.8 -37.3 28.15 7 10 116 327 -024 078055040 M27M25M24 000 29 27 05 -36.1 -38.5 28.14 7 10 122 333 -010 079055060 M26M25M25 000 30 27 06 -34.9 -37.4 28.13 6 8 123 334 025 078058075 M26M26M25 000 31 27 07 -33.9 -36.7 28.13 4 6 134 345 024 076055075 M27M26M25 000 32 27 08 -33.9 -36.9 28.14 3 5 168 19 -005 074056063 M28M27M25 000 33 27 09 -34.3 -37.3 28.13 2 3 298 149 -014 074056057 M29M27M25 000 34 27 10 -36.0 -38.4 28.14 6 7 334 185 -013 079058052 M29M27M26 000 35 27 11 -39.2 -41.7 28.15 9 12 340 191 001 077060055 M30M28M26 000 36 27 12 -40.7 -43.9 28.17 12 17 351 202 -017 071064065 M30M28M27 000 37 27 13 -41.4 -44.6 28.20 13 19 355 206 -010 071067078 M30M28M26 000 38 27 14 -41.8 -45.1 28.23 14 21 2 213 -000 070063064 M31M27M26 000 39 27 15 -41.9 -45.1 28.25 14 21 10 221 -023 070061044 M31M27M25 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 1h) 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.