USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2025092200 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 22 00 -26.8 -30.5 28.84 7 8 28 239 -003 074077077 M26M26M25 000 03 22 03 -31.8 -34.0 28.82 10 14 58 269 -008 081076078 M25M25M25 000 06 22 06 -32.2 -34.1 28.78 10 15 74 285 -011 083069075 M24M24M24 000 09 22 09 -31.8 -33.4 28.74 10 15 91 302 -019 086070074 M24M23M24 000 12 22 12 -31.6 -33.6 28.68 11 17 95 306 -003 082068068 M23M23M23 000 15 22 15 -31.5 -33.6 28.66 11 17 105 316 000 082064061 M23M23M23 000 18 22 18 -30.2 -32.8 28.60 9 14 101 312 -003 078058053 M22M22M22 000 21 22 21 -28.8 -32.4 28.54 7 10 111 322 -011 071050045 M22M21M22 000 24 23 00 -28.4 -32.9 28.49 6 8 112 323 -020 065043038 M21M21M21 000 27 23 03 -27.0 -32.3 28.44 5 7 79 290 -003 061040043 M20M20M21 000 30 23 06 -25.7 -31.6 28.42 2 3 52 263 -007 058040045 M20M20M21 000 33 23 09 -26.5 -32.0 28.40 4 5 45 256 000 060041048 M21M20M21 000 36 23 12 -27.1 -31.7 28.39 5 7 16 227 -008 065039046 M20M20M21 000 39 23 15 -26.7 -31.6 28.40 5 6 35 246 -009 063040040 M20M20M21 000 42 23 18 -28.3 -33.6 28.44 7 8 59 270 -009 060039028 M20M20M20 000 45 23 21 -28.3 -33.4 28.45 8 10 70 281 -015 061025031 M19M19M19 000 48 24 00 -27.0 -32.5 28.47 8 11 73 284 -003 060029056 M17M17M18 000 51 24 03 -25.3 -31.6 28.51 8 11 71 282 -014 056046073 M16M17M18 000 54 24 06 -23.7 -30.2 28.55 7 8 86 297 -007 055067077 M15M15M16 000 57 24 09 -22.6 -29.3 28.59 6 7 93 304 -003 055062077 M14M15M16 000 60 24 12 -21.1 -28.6 28.61 5 7 104 315 -001 051056072 M14M15M15 000 63 24 15 -21.0 -28.9 28.66 6 8 127 338 -004 049049066 M14M15M15 000 66 24 18 -21.2 -28.7 28.68 6 9 156 7 -004 051043061 M14M14M15 000 69 24 21 -23.7 -29.8 28.69 8 11 186 37 -003 057036057 M15M15M15 000 72 25 00 -24.5 -29.9 28.69 9 13 212 63 007 061032051 M16M15M15 000 75 25 03 -25.3 -29.9 28.70 9 13 224 75 008 066034059 M16M15M15 000 78 25 06 -25.1 -29.9 28.69 9 13 220 71 -001 064041064 M17M16M16 000 81 25 09 -26.5 -30.4 28.66 8 12 232 83 -004 070052061 M17M15M15 000 84 25 12 -28.6 -31.0 28.63 8 13 238 89 018 079060057 M18M16M15 000 87 25 15 -29.1 -31.0 28.64 5 10 295 146 -024 084065060 M19M17M16 000 90 25 18 -31.6 -34.3 28.65 11 18 333 183 013 077070061 M21M18M17 000 93 25 21 -33.5 -36.6 28.70 13 23 346 197 -005 074068063 M24M20M19 000 96 26 00 -34.0 -37.1 28.75 15 25 7 218 005 073058062 M25M20M18 000 99 26 03 -35.0 -38.1 28.81 14 24 23 234 -009 073059030 M26M21M19 001 102 26 06 -34.9 -37.8 28.83 12 21 30 241 -009 075052019 M24M21M19 001 105 26 09 -34.1 -36.7 28.84 11 18 41 252 -035 078052018 M23M21M19 001 108 26 12 -33.0 -34.8 28.82 9 13 52 263 -004 084055019 M22M20M20 000 111 26 15 -29.4 -30.9 28.79 5 5 56 267 -016 087060023 M22M21M20 000 114 26 18 -29.1 -30.5 28.76 6 7 153 4 -002 088041026 M22M19M19 000 117 26 21 -28.4 -30.9 28.70 6 7 139 350 -017 079034034 M20M19M18 000 120 27 00 -29.2 -31.5 28.66 7 8 154 5 -004 080031046 M21M19M18 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.