USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2025092712 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 27 12 -27.0 -33.0 28.62 5 7 33 244 -002 063046038 M24M21M18 000 03 27 15 -31.5 -34.2 28.64 8 12 38 249 001 077050042 M23M21M20 000 06 27 18 -31.8 -34.3 28.70 8 14 38 249 -014 078050046 M23M21M20 000 09 27 21 -30.2 -32.8 28.75 8 13 49 260 -012 078057051 M23M21M20 000 12 28 00 -29.7 -32.4 28.80 7 11 60 271 -003 078061052 M23M21M20 000 15 28 03 -29.1 -32.4 28.83 7 9 78 289 -008 074055046 M21M20M19 000 18 28 06 -28.9 -32.7 28.83 8 10 90 301 -014 070050043 M19M18M17 000 21 28 09 -27.2 -31.2 28.84 7 9 94 305 -013 069045042 M17M17M16 000 24 28 12 -25.8 -30.4 28.79 7 9 132 343 -005 065043039 M16M15M15 000 27 28 15 -25.0 -29.2 28.77 9 11 155 6 009 068036034 M15M13M13 000 30 28 18 -24.1 -28.5 28.74 9 10 175 26 012 067037040 M15M13M13 000 33 28 21 -23.6 -28.1 28.71 6 8 186 37 -008 067052064 M16M14M13 000 36 29 00 -22.2 -26.5 28.71 3 5 136 347 -001 068055062 M17M15M13 000 39 29 03 -21.3 -25.7 28.70 2 3 60 271 -008 068052056 M17M14M13 000 42 29 06 -22.5 -26.6 28.72 2 2 66 277 002 069052047 M18M14M12 000 45 29 09 -24.9 -28.5 28.70 5 7 101 312 004 072046046 M17M13M11 000 48 29 12 -24.9 -27.8 28.70 8 14 76 287 017 077045040 M17M14M12 000 51 29 15 -28.8 -31.6 28.75 14 26 57 268 009 077049040 M19M13M10 000 54 29 18 -27.4 -30.5 28.78 15 27 67 278 -030 075057034 M18M13M11 000 57 29 21 -24.8 -28.0 28.79 16 26 73 284 -027 075054035 M15M12M11 000 60 30 00 -23.8 -27.3 28.81 16 27 78 289 -016 073053040 M13M11M11 000 63 30 03 -23.5 -27.3 28.81 16 26 85 296 007 071032029 M12M10M10 000 66 30 06 -23.1 -26.4 28.79 15 28 80 291 011 075030039 M12M10M09 000 69 30 09 -22.5 -26.1 28.76 15 28 82 293 005 073033037 M10M09M09 000 72 30 12 -23.4 -27.3 28.72 12 21 84 295 031 070032034 M10M09M09 000 75 30 15 -24.3 -28.1 28.70 10 17 67 278 014 071032034 M11M10M09 000 78 30 18 -22.9 -27.4 28.70 8 12 62 273 -010 066033035 M12M11M10 000 81 30 21 -21.3 -26.3 28.68 6 7 78 289 -008 064034036 M13M11M10 000 84 01 00 -20.0 -25.5 28.68 5 7 69 280 004 062034035 M12M10M10 000 87 01 03 -19.3 -25.7 28.67 2 2 111 322 -001 057036035 M14M11M10 000 90 01 06 -20.1 -26.2 28.68 3 3 134 345 -008 058036035 M13M11M10 000 93 01 09 -20.5 -26.5 28.68 3 4 28 239 -008 059037035 M14M12M11 000 96 01 12 -23.9 -28.0 28.69 4 6 302 153 006 069041035 M16M13M11 000 99 01 15 -24.3 -27.9 28.72 4 5 323 174 -008 072046036 M17M14M13 000 102 01 18 -24.3 -26.5 28.75 4 6 340 191 -000 082052037 M17M15M13 000 105 01 21 -24.8 -26.4 28.77 4 6 326 177 -001 086058039 M18M15M14 000 108 02 00 -25.7 -27.4 28.79 4 7 333 184 003 086076041 M20M17M15 000 111 02 03 -26.3 -28.2 28.81 5 8 352 203 006 084080050 M21M18M16 000 114 02 06 -28.4 -30.6 28.85 6 12 357 208 002 082082045 M22M19M17 000 117 02 09 -29.8 -32.2 28.86 7 13 5 216 004 080087059 M23M20M18 000 120 02 12 -28.5 -31.0 28.88 7 13 4 215 006 079086071 M23M21M19 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.