USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2025091900 AMPS 8km 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 19 00 -9.4 -12.9 28.22 6 7 159 10 -002 082070073 M09M09M10 000 03 19 03 -11.6 -14.4 28.17 10 16 142 353 004 080063083 M09M09M10 004 06 19 06 -11.5 -13.8 28.12 9 17 118 329 012 084068074 M09M09M09 006 09 19 09 -11.6 -14.9 28.06 6 10 63 274 013 077070091 M09M09M10 003 12 19 12 -13.0 -15.9 28.01 5 7 4 214 -012 079065084 M10M10M11 001 15 19 15 -15.7 -17.3 28.06 9 14 4 215 -006 088082082 M11M11M11 000 18 19 18 -16.9 -17.4 28.11 12 19 1 212 -025 095084067 M12M11M11 000 21 19 21 -14.9 -15.8 28.19 10 18 344 195 007 093082070 M13M12M12 002 24 20 00 -16.1 -17.6 28.27 10 15 359 210 020 088091086 M14M13M13 017 27 20 03 -18.1 -19.8 28.38 12 19 355 206 005 086087084 M15M13M13 018 30 20 06 -19.1 -20.9 28.49 12 20 8 219 033 086083084 M16M14M14 011 33 20 09 -19.4 -21.6 28.60 12 19 16 227 017 083083086 M16M15M14 025 36 20 12 -21.4 -23.4 28.67 9 15 25 236 016 084078082 M16M15M15 009 39 20 15 -21.8 -23.4 28.76 9 14 32 243 027 087081084 M16M16M15 000 42 20 18 -20.1 -21.7 28.81 4 6 37 248 -038 087083085 M16M15M16 000 45 20 21 -19.5 -21.5 28.85 5 6 189 40 044 084089078 M17M17M17 015 48 21 00 -18.9 -21.1 28.85 4 5 170 21 024 083086087 M16M17M17 019 51 21 03 -18.6 -20.7 28.87 3 4 220 71 006 083085085 M17M17M17 050 54 21 06 -20.0 -22.2 28.90 2 3 230 81 -002 083085085 M19M18M18 029 57 21 09 -21.1 -23.4 28.92 6 9 330 181 006 082084084 M20M19M19 023 60 21 12 -23.1 -25.6 28.93 7 11 338 189 010 080083084 M20M20M20 018 63 21 15 -25.0 -27.5 28.96 8 13 355 206 001 079083085 M22M20M20 013 66 21 18 -25.3 -28.0 28.97 7 12 351 202 006 079083083 M22M21M21 010 69 21 21 -25.6 -28.3 28.98 7 11 1 212 005 078083083 M22M22M22 011 72 22 00 -26.2 -28.9 28.97 6 9 10 221 -003 078085084 M22M22M22 007 75 22 03 -26.7 -29.1 28.97 5 6 27 238 -005 081085083 M22M22M22 003 78 22 06 -27.3 -29.3 28.96 5 5 57 268 -005 083080082 M22M21M21 001 81 22 09 -26.7 -28.4 28.92 5 5 77 288 -012 085080081 M21M21M21 000 84 22 12 -28.0 -29.6 28.87 6 7 102 313 -003 087078077 M21M21M21 000 87 22 15 -28.5 -30.1 28.83 8 10 83 294 -018 086074073 M20M20M20 000 90 22 18 -28.1 -29.7 28.79 8 10 89 300 -007 086072068 M20M19M20 000 93 22 21 -26.8 -28.7 28.73 8 10 85 296 -004 084070064 M19M19M19 000 96 23 00 -25.9 -28.1 28.69 7 9 95 306 -005 082066060 M19M19M19 000 99 23 03 -26.1 -28.4 28.64 7 10 106 317 -008 081061058 M18M18M19 000 102 23 06 -25.7 -28.6 28.61 7 9 107 318 -004 077054053 M18M18M18 000 105 23 09 -24.3 -28.3 28.56 5 6 113 324 -006 069050049 M18M18M19 000 108 23 12 -23.8 -28.5 28.53 4 5 136 347 -002 065046046 M18M18M18 000 111 23 15 -23.8 -28.9 28.52 4 5 130 341 -009 063044042 M17M18M18 000 114 23 18 -23.0 -29.0 28.53 2 3 106 316 005 058043041 M17M18M18 000 117 23 21 -22.3 -28.9 28.54 2 2 140 351 -009 055042040 M17M18M18 000 120 24 00 -22.4 -28.9 28.55 2 2 109 320 -009 055042038 M17M18M18 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.