USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2025092900 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 29 00 -18.0 -23.8 28.72 2 2 173 24 002 058081072 M16M15M13 000 01 29 01 -19.9 -24.3 28.75 4 4 136 347 -031 068079064 M15M13M12 000 02 29 02 -19.2 -23.2 28.73 3 4 90 301 018 071078059 M14M13M12 000 03 29 03 -18.5 -22.2 28.74 4 4 61 272 002 073076054 M14M13M12 000 04 29 04 -18.3 -21.9 28.77 3 3 49 260 029 073071044 M14M12M11 000 05 29 05 -19.6 -22.9 28.76 5 6 66 277 -004 075069043 M14M13M12 000 06 29 06 -20.4 -23.6 28.74 6 7 68 279 -006 075061044 M13M11M11 000 07 29 07 -20.8 -23.8 28.75 8 11 67 278 004 077058047 M13M12M11 000 08 29 08 -17.8 -21.6 28.75 5 6 69 280 -034 072050051 M11M10M10 000 09 29 09 -19.8 -22.6 28.77 8 11 68 279 -051 078049052 M12M11M11 000 10 29 10 -20.5 -23.3 28.77 8 11 59 270 -072 078046047 M11M10M10 000 11 29 11 -20.5 -23.8 28.75 11 15 71 282 -018 075042044 M10M10M10 000 12 29 12 -19.9 -23.5 28.75 12 16 78 289 023 073045047 M10M09M10 000 13 29 13 -20.6 -23.2 28.80 16 24 76 287 045 080050050 M11M10M10 000 14 29 14 -21.7 -24.9 28.79 18 29 71 282 -012 076040035 M11M10M10 000 15 29 15 -22.1 -26.1 28.82 20 31 66 277 024 071029034 M12M10M11 000 16 29 16 -22.3 -26.5 28.82 20 30 67 278 028 068021021 M12M11M11 000 17 29 17 -21.6 -26.0 28.82 23 34 70 281 -033 068020014 M12M11M12 000 18 29 18 -21.1 -25.2 28.85 22 33 72 283 -180 069045014 M13M12M12 000 19 29 19 -21.9 -26.0 28.84 20 30 74 285 -119 070050020 M13M12M13 000 20 29 20 -21.8 -26.0 28.86 18 27 76 287 -075 069049028 M13M12M12 000 21 29 21 -21.6 -25.8 28.85 18 27 77 288 -051 069029033 M12M11M11 000 22 29 22 -20.8 -25.3 28.85 20 32 79 290 -030 067029030 M12M10M09 000 23 29 23 -19.7 -24.0 28.83 22 36 80 291 -078 069032033 M11M09M09 000 24 30 00 -18.6 -22.7 28.83 22 35 79 290 -053 071036039 M12M10M09 000 25 30 01 -18.3 -21.8 28.83 21 34 79 290 086 074040042 M13M11M10 000 26 30 02 -18.2 -21.5 28.83 21 33 82 293 004 075040042 M13M11M10 000 27 30 03 -18.1 -21.4 28.80 21 33 83 294 -046 076037039 M13M10M10 000 28 30 04 -18.2 -21.5 28.79 21 33 83 294 -070 075036035 M12M10M10 000 29 30 05 -18.3 -21.7 28.80 21 33 83 294 -073 075034030 M11M10M09 000 30 30 06 -18.4 -22.0 28.80 21 33 83 293 -066 074032035 M10M09M09 000 31 30 07 -18.6 -22.2 28.76 20 33 80 291 -073 073031039 M10M08M08 000 32 30 08 -18.0 -21.9 28.75 21 35 75 286 -162 072032044 M09M08M08 000 33 30 09 -17.4 -21.5 28.75 21 35 66 277 -139 070034039 M08M07M08 000 34 30 10 -18.3 -22.0 28.74 19 31 77 288 -062 072035036 M09M08M08 000 35 30 11 -19.0 -22.6 28.73 18 29 87 298 -002 073036035 M10M08M08 000 36 30 12 -18.3 -22.2 28.71 18 28 84 295 -025 071036036 M10M08M08 000 37 30 13 -17.8 -21.9 28.71 18 29 82 293 -017 070034037 M09M07M08 000 38 30 14 -18.1 -22.1 28.69 19 30 86 297 -013 071035036 M09M07M08 000 39 30 15 -18.2 -22.2 28.68 18 30 84 295 024 071035035 M09M08M08 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.