USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2025092600 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 26 00 -27.7 -32.9 28.46 5 5 6 217 -007 057049047 M25M22M21 000 01 26 01 -30.6 -34.2 28.48 10 12 349 200 020 071044045 M22M20M20 000 02 26 02 -30.4 -33.7 28.48 12 17 5 216 005 073054049 M23M21M21 000 03 26 03 -31.6 -34.7 28.46 14 20 13 224 015 074063048 M24M22M22 000 04 26 04 -32.8 -35.9 28.48 15 22 21 232 -024 073061048 M24M21M21 000 05 26 05 -33.5 -36.4 28.52 16 23 27 238 -013 076061050 M24M21M21 000 06 26 06 -33.7 -36.4 28.51 15 24 26 237 001 077063052 M24M22M21 000 07 26 07 -33.7 -36.4 28.53 16 24 25 236 002 077065052 M24M22M21 000 08 26 08 -34.0 -36.7 28.53 16 24 26 237 -009 077066051 M24M22M21 000 09 26 09 -34.1 -36.8 28.54 16 24 33 244 -020 076067049 M24M22M21 000 10 26 10 -33.9 -36.5 28.56 16 24 34 245 -047 077069048 M24M22M21 000 11 26 11 -33.7 -36.4 28.56 16 24 33 244 -037 077073048 M24M22M21 000 12 26 12 -33.9 -36.5 28.56 16 24 32 243 -025 077069048 M23M21M21 000 13 26 13 -34.0 -36.7 28.59 16 24 32 243 -021 077062048 M24M21M21 000 14 26 14 -34.3 -37.1 28.58 16 24 32 243 -027 076058048 M24M21M21 000 15 26 15 -34.2 -37.0 28.60 15 23 31 242 -034 076059048 M24M21M21 000 16 26 16 -33.9 -36.6 28.61 15 23 32 243 -020 077062048 M24M21M21 000 17 26 17 -33.4 -36.0 28.62 15 23 33 244 -002 077064048 M24M21M20 000 18 26 18 -32.8 -35.4 28.63 15 23 31 242 -006 078064048 M23M21M20 000 19 26 19 -32.3 -34.8 28.62 15 23 28 239 017 078067048 M23M21M20 000 20 26 20 -31.8 -34.4 28.63 14 22 25 236 024 078066048 M23M21M20 000 21 26 21 -31.5 -34.0 28.64 14 21 28 239 029 078064048 M23M20M20 000 22 26 22 -31.2 -33.7 28.63 14 21 31 242 026 079062049 M22M20M19 000 23 26 23 -30.6 -33.0 28.63 14 21 29 240 028 080058050 M21M19M19 000 24 27 00 -30.1 -32.5 28.64 14 21 35 246 053 080057050 M21M19M19 000 25 27 01 -30.0 -32.4 28.66 14 21 38 249 048 079056050 M21M19M18 000 26 27 02 -29.4 -32.0 28.66 13 20 33 244 012 078054049 M20M18M18 000 27 27 03 -29.3 -32.0 28.66 13 20 34 245 -001 078053050 M19M18M18 000 28 27 04 -29.6 -32.2 28.64 13 19 36 247 -027 078053050 M19M18M17 000 29 27 05 -29.3 -32.1 28.65 13 18 34 245 -039 077052051 M19M18M17 000 30 27 06 -29.2 -32.0 28.65 12 17 34 245 -054 077050052 M19M18M17 000 31 27 07 -28.9 -31.9 28.64 11 15 31 242 -054 075049052 M19M18M17 000 32 27 08 -28.3 -31.5 28.64 9 12 29 240 -067 074047052 M19M18M18 000 33 27 09 -27.2 -30.7 28.64 8 10 24 235 -032 072047052 M18M18M18 000 34 27 10 -25.2 -29.4 28.65 6 7 19 230 -004 068048051 M18M18M18 000 35 27 11 -24.5 -29.0 28.63 4 5 11 222 042 066051050 M19M19M19 000 36 27 12 -24.2 -28.8 28.64 3 3 346 197 007 066051049 M20M19M18 000 37 27 13 -24.3 -28.7 28.65 3 3 318 169 -028 067049048 M20M19M18 000 38 27 14 -24.2 -28.5 28.64 2 2 320 171 -003 068049050 M20M19M18 000 39 27 15 -24.6 -28.4 28.65 3 4 330 181 031 071050051 M20M19M18 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.