USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2025092200 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 22 00 -27.1 -31.5 28.88 6 7 41 252 -002 074071073 M25M25M24 000 03 22 03 -32.3 -34.5 28.86 8 12 66 277 -007 081076078 M25M25M25 000 06 22 06 -32.9 -34.9 28.82 8 13 80 291 -005 082071074 M24M24M24 000 09 22 09 -32.5 -34.2 28.78 9 12 97 308 -013 085072073 M24M24M24 000 12 22 12 -32.5 -34.5 28.72 9 15 101 312 -003 083068069 M23M23M23 000 15 22 15 -32.5 -34.5 28.70 10 15 108 319 -010 083064062 M23M22M23 000 18 22 18 -31.0 -33.4 28.64 8 12 108 319 -009 079058055 M22M22M22 000 21 22 21 -29.4 -32.7 28.58 7 9 121 332 -007 073051047 M22M21M22 000 24 23 00 -29.1 -33.3 28.53 6 7 115 326 -012 067045040 M22M21M21 000 27 23 03 -28.2 -32.8 28.48 5 6 82 293 -002 065042043 M21M21M21 000 30 23 06 -27.0 -32.1 28.46 3 4 65 276 -008 062041045 M21M20M20 000 33 23 09 -27.7 -32.4 28.44 4 6 50 261 -003 064043046 M21M21M21 000 36 23 12 -28.4 -32.3 28.43 4 7 27 238 -008 069042045 M21M20M20 000 39 23 15 -27.8 -32.2 28.44 5 6 48 259 -006 066041041 M21M20M20 000 42 23 18 -28.9 -33.8 28.48 6 8 67 278 -008 063038029 M20M20M20 000 45 23 21 -28.5 -33.4 28.48 7 8 77 288 -010 063029032 M19M19M19 000 48 24 00 -27.1 -32.4 28.51 7 9 83 294 -002 061029054 M18M17M18 000 51 24 03 -25.5 -31.6 28.54 7 8 82 293 -005 057041072 M17M17M17 000 54 24 06 -24.2 -30.4 28.58 7 7 90 301 -002 056056076 M15M15M16 000 57 24 09 -23.3 -29.6 28.62 6 6 95 306 -002 057056074 M15M15M15 000 60 24 12 -21.7 -28.7 28.64 5 5 115 326 001 053050068 M15M15M15 000 63 24 15 -21.6 -29.0 28.69 5 6 135 346 -002 051043064 M14M14M15 000 66 24 18 -21.5 -28.8 28.71 5 6 169 20 -000 052039060 M14M14M15 000 69 24 21 -23.5 -29.6 28.72 7 8 195 46 -003 057036055 M15M15M15 000 72 25 00 -24.3 -29.7 28.72 8 11 215 66 005 061036052 M16M15M15 000 75 25 03 -25.2 -29.6 28.73 8 11 227 78 002 066039057 M17M15M15 000 78 25 06 -25.0 -29.7 28.72 7 11 231 82 -006 065043059 M17M16M15 000 81 25 09 -26.4 -30.2 28.70 6 11 245 96 -005 070050058 M18M16M15 000 84 25 12 -28.6 -31.1 28.67 6 11 256 107 002 079058056 M19M17M16 000 87 25 15 -29.4 -31.2 28.68 5 9 315 166 -006 084067057 M21M18M17 000 90 25 18 -31.8 -34.4 28.70 9 16 339 190 010 077073058 M24M20M18 000 93 25 21 -33.6 -36.6 28.75 11 20 354 205 -005 074072061 M26M22M20 000 96 26 00 -34.1 -37.2 28.80 12 22 14 225 -000 074063056 M26M22M20 000 99 26 03 -35.0 -38.1 28.86 12 22 28 239 -007 073066036 M27M23M21 001 102 26 06 -35.0 -37.8 28.88 10 19 37 248 -006 076061023 M25M22M20 001 105 26 09 -34.3 -36.8 28.88 9 18 46 257 -010 078061021 M24M22M20 001 108 26 12 -33.0 -34.8 28.86 8 11 59 270 004 084065020 M23M22M21 000 111 26 15 -30.0 -31.4 28.84 4 5 70 281 -013 088063022 M23M22M20 000 114 26 18 -29.4 -30.8 28.80 4 5 156 7 -004 088052024 M23M21M19 000 117 26 21 -28.6 -30.9 28.74 5 6 158 9 -006 080042031 M21M20M19 000 120 27 00 -29.1 -31.4 28.70 5 6 163 14 -001 081041042 M22M20M19 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.