USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2025092900 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 29 00 -17.8 -24.2 28.75 2 3 176 27 -000 059076071 M16M14M13 000 03 29 03 -18.8 -22.5 28.75 3 4 63 274 -004 072075055 M15M13M12 000 06 29 06 -20.6 -23.8 28.76 5 6 73 284 -002 075063044 M14M12M11 000 09 29 09 -19.9 -22.8 28.78 6 8 77 288 -023 078052051 M13M11M11 000 12 29 12 -20.0 -23.5 28.76 10 16 85 296 014 073045046 M10M09M10 000 15 29 15 -22.1 -26.0 28.83 18 31 69 280 021 071029033 M12M10M11 000 18 29 18 -21.1 -25.2 28.86 21 33 75 286 -091 070045015 M14M12M12 000 21 29 21 -21.6 -25.8 28.87 17 27 83 294 -028 069031033 M12M11M11 000 24 30 00 -18.7 -22.7 28.84 20 33 82 293 -031 071036038 M12M11M09 000 27 30 03 -18.1 -21.3 28.81 20 33 86 297 -001 076038039 M12M10M10 000 30 30 06 -18.4 -21.9 28.81 20 33 86 297 -017 074033034 M11M09M09 000 33 30 09 -17.3 -21.4 28.76 20 34 70 281 -098 070034039 M08M07M08 000 36 30 12 -18.4 -22.3 28.72 17 28 89 300 -003 071036036 M10M08M08 000 39 30 15 -18.3 -22.2 28.70 17 30 88 299 014 071035036 M09M07M08 000 42 30 18 -18.6 -22.4 28.67 16 29 84 295 -000 072033032 M10M07M07 000 45 30 21 -18.2 -22.0 28.63 15 26 85 296 036 072031026 M09M07M06 000 48 01 00 -18.5 -22.0 28.59 16 27 78 289 -003 074029034 M09M07M07 000 51 01 03 -19.3 -22.7 28.59 14 24 70 281 020 075030041 M10M08M08 000 54 01 06 -20.5 -23.8 28.60 13 21 72 283 010 075031030 M09M08M08 000 57 01 09 -20.7 -24.6 28.59 11 17 64 275 -006 071033031 M08M08M08 000 60 01 12 -21.8 -25.2 28.60 11 16 58 269 -001 074039039 M11M10M10 000 63 01 15 -22.4 -25.5 28.63 9 13 54 265 003 075043041 M12M11M11 000 66 01 18 -21.3 -24.6 28.64 8 10 45 256 007 075046040 M13M12M11 000 69 01 21 -21.6 -24.7 28.66 7 9 31 242 -010 076047041 M14M12M11 000 72 02 00 -22.6 -25.6 28.69 7 11 25 236 -007 077049048 M15M13M12 000 75 02 03 -24.0 -26.8 28.72 8 12 12 223 000 078051054 M14M13M12 000 78 02 06 -24.2 -26.8 28.76 7 11 347 198 005 079054058 M15M14M13 000 81 02 09 -25.5 -28.3 28.79 8 12 341 192 013 077039056 M16M14M14 000 84 02 12 -25.5 -27.7 28.82 7 14 311 162 017 082052052 M16M15M14 000 87 02 15 -24.4 -24.7 28.84 6 12 264 115 004 097080064 M17M16M16 000 90 02 18 -22.9 -23.6 28.86 6 11 237 88 014 094089073 M17M16M17 001 93 02 21 -21.9 -23.3 28.84 6 9 217 68 004 089088075 M17M17M17 003 96 03 00 -22.6 -23.8 28.80 6 9 204 55 -017 090088066 M18M17M17 002 99 03 03 -23.4 -24.1 28.76 5 7 210 61 -018 094085064 M19M18M17 001 102 03 06 -25.2 -25.5 28.72 6 8 197 48 -015 097077062 M19M17M17 000 105 03 09 -24.5 -25.1 28.65 4 6 199 50 000 095073063 M19M17M17 000 108 03 12 -23.3 -24.2 28.58 3 5 232 83 007 092079065 M19M17M17 000 111 03 15 -24.0 -25.1 28.53 3 5 249 100 -025 090087071 M19M18M17 001 114 03 18 -23.2 -25.2 28.48 6 8 322 173 -006 084091083 M20M19M18 002 117 03 21 -23.0 -25.2 28.43 9 12 336 187 001 082092089 M21M20M19 004 120 04 00 -24.6 -27.1 28.41 9 13 340 190 006 080089090 M22M20M20 006 * 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.