USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2025092100 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 21 00 -17.2 -20.5 28.80 6 6 315 166 002 084079080 M18M19M19 000 03 21 03 -21.9 -23.9 28.84 5 6 323 174 018 084083084 M21M20M20 010 06 21 06 -24.6 -27.0 28.87 8 12 353 204 -013 080081083 M22M21M21 014 09 21 09 -27.5 -29.8 28.90 8 14 5 216 004 081079082 M23M22M21 002 12 21 12 -27.7 -30.2 28.91 7 13 9 220 -003 079081084 M23M22M22 004 15 21 15 -28.2 -30.8 28.93 7 12 21 232 002 079081081 M24M23M23 010 18 21 18 -29.0 -31.3 28.96 6 11 29 240 005 080080080 M24M23M23 001 21 21 21 -28.1 -30.5 28.95 5 9 35 246 -002 080080079 M24M24M24 002 24 22 00 -28.0 -30.3 28.92 5 6 71 282 -006 080081080 M24M24M24 003 27 22 03 -29.2 -31.2 28.90 8 10 81 292 001 082078077 M23M23M23 001 30 22 06 -30.0 -31.8 28.86 9 13 88 299 -003 084075068 M22M22M22 000 33 22 09 -29.6 -31.2 28.83 9 13 95 306 -010 087067054 M22M22M22 000 36 22 12 -29.7 -31.3 28.76 9 14 95 306 -005 086057046 M21M21M21 000 39 22 15 -29.3 -31.6 28.72 9 13 91 302 -009 081045048 M20M20M21 000 42 22 18 -29.2 -31.3 28.68 9 12 91 302 -009 082051054 M20M20M20 000 45 22 21 -27.6 -30.8 28.62 8 11 98 309 -003 075057055 M19M19M20 000 48 23 00 -26.6 -30.9 28.57 7 10 99 310 -013 067054052 M19M19M19 000 51 23 03 -26.1 -29.3 28.52 6 7 104 315 -011 074052049 M18M18M19 000 54 23 06 -26.8 -29.6 28.49 7 9 102 313 -012 077049048 M18M18M18 000 57 23 09 -26.1 -29.4 28.45 7 9 97 308 -010 074045048 M17M17M17 000 60 23 12 -25.4 -29.2 28.42 7 8 93 304 -008 070043048 M16M16M17 000 63 23 15 -24.3 -28.8 28.41 7 8 93 304 -007 066041046 M16M16M16 000 66 23 18 -23.2 -28.2 28.43 6 7 97 308 -007 064040045 M15M15M16 000 69 23 21 -21.8 -26.7 28.44 6 7 103 314 -006 065041044 M15M15M15 000 72 24 00 -21.4 -25.9 28.47 5 6 86 297 -007 067043043 M14M15M15 000 75 24 03 -19.8 -25.3 28.52 4 5 52 263 001 062042044 M14M14M15 000 78 24 06 -19.6 -25.3 28.58 4 6 14 225 -005 061041046 M14M14M14 000 81 24 09 -19.8 -25.3 28.62 4 7 6 217 001 062045053 M14M14M14 000 84 24 12 -19.4 -24.1 28.66 5 8 15 226 -003 067057067 M14M14M14 000 87 24 15 -19.4 -22.3 28.73 6 9 20 231 003 078071071 M13M14M14 000 90 24 18 -19.1 -20.5 28.78 5 8 22 233 -001 089078073 M13M14M14 000 93 24 21 -17.7 -19.2 28.83 5 7 26 237 -004 088078074 M13M14M14 000 96 25 00 -18.1 -19.5 28.86 4 6 26 237 -005 089079074 M13M14M15 000 99 25 03 -17.7 -18.9 28.90 3 4 69 280 -008 090080073 M13M14M15 000 102 25 06 -18.7 -19.1 28.93 3 3 138 349 -004 096077069 M13M14M14 000 105 25 09 -19.3 -19.6 28.94 4 5 151 2 -006 097077067 M14M14M14 000 108 25 12 -20.8 -20.8 28.94 6 6 169 20 000 101075065 M14M14M14 000 111 25 15 -22.8 -23.1 28.95 6 8 178 29 -009 098073063 M14M14M14 000 114 25 18 -22.6 -23.4 28.93 7 8 184 35 -006 093064055 M15M14M14 000 117 25 21 -22.6 -24.3 28.90 6 7 166 17 -006 087041039 M16M14M14 000 120 26 00 -23.3 -27.4 28.87 6 7 116 327 -010 069031027 M16M14M14 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.