USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2025093000 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 30 00 -12.5 -18.5 28.77 23 25 78 289 -012 067044041 M13M12M10 000 03 30 03 -16.0 -18.7 28.74 20 34 83 294 010 080048034 M12M12M12 000 06 30 06 -17.2 -20.2 28.71 17 30 77 288 004 078037028 M11M10M09 000 09 30 09 -17.6 -20.8 28.69 16 27 78 289 -013 076031031 M09M08M08 000 12 30 12 -16.4 -20.4 28.68 15 26 76 287 003 071027031 M08M07M07 000 15 30 15 -16.3 -20.1 28.67 14 23 72 283 047 073028038 M08M07M07 000 18 30 18 -15.5 -19.2 28.68 15 24 77 288 042 074030043 M07M06M07 000 21 30 21 -15.6 -19.5 28.67 14 23 76 287 011 072033046 M08M07M07 000 24 01 00 -16.9 -20.3 28.64 14 24 75 286 070 075035046 M10M07M07 000 27 01 03 -17.9 -21.3 28.63 14 23 83 294 -037 075034044 M11M08M08 000 30 01 06 -19.2 -22.4 28.62 13 24 79 290 048 076033039 M13M09M08 000 33 01 09 -20.4 -23.4 28.62 13 23 68 279 005 077035039 M13M10M09 000 36 01 12 -21.3 -24.1 28.61 9 16 60 271 -080 078041042 M14M11M10 000 39 01 15 -21.3 -24.0 28.65 8 10 38 249 001 079048044 M15M13M12 000 42 01 18 -22.5 -25.0 28.69 9 15 27 238 007 080051047 M16M14M12 000 45 01 21 -23.0 -25.5 28.72 9 15 30 241 -025 081057047 M16M14M13 000 48 02 00 -23.4 -25.6 28.74 11 16 22 233 -014 082051048 M17M14M13 000 51 02 03 -24.7 -27.0 28.79 9 18 353 204 -006 082060050 M16M15M14 000 54 02 06 -24.8 -26.6 28.83 9 16 345 196 002 085058053 M16M15M14 000 57 02 09 -25.1 -26.7 28.85 9 15 350 201 001 086053050 M16M15M15 000 60 02 12 -24.4 -25.9 28.88 8 14 340 191 009 087063047 M17M16M15 000 63 02 15 -22.4 -23.5 28.90 8 14 330 181 013 091085050 M17M16M16 001 66 02 18 -21.5 -22.7 28.91 7 13 335 186 008 090088054 M17M16M16 001 69 02 21 -20.1 -21.6 28.91 6 10 332 183 004 088095064 M18M16M16 003 72 03 00 -19.6 -21.4 28.89 5 8 316 167 004 086093071 M17M16M17 005 75 03 03 -20.2 -22.2 28.86 5 8 289 140 011 084093075 M18M17M17 010 78 03 06 -20.8 -22.8 28.83 5 8 279 130 004 084093071 M18M18M17 011 81 03 09 -21.3 -23.3 28.76 4 6 287 138 005 084090079 M19M18M18 013 84 03 12 -21.4 -23.6 28.69 4 6 303 154 003 082086085 M20M19M19 027 87 03 15 -22.9 -24.9 28.62 4 6 316 167 005 083088084 M20M20M19 018 90 03 18 -24.2 -26.1 28.55 5 6 355 206 001 084092079 M21M20M20 003 93 03 21 -24.3 -26.6 28.47 7 9 25 236 -002 081091080 M21M21M20 003 96 04 00 -24.6 -26.9 28.41 7 10 31 242 -001 081089083 M21M21M21 003 99 04 03 -26.2 -28.5 28.36 7 10 38 249 003 080088086 M22M21M21 004 102 04 06 -27.7 -30.0 28.34 7 10 43 254 -005 081085087 M22M22M21 005 105 04 09 -28.1 -30.1 28.30 6 9 35 246 -005 083085088 M22M22M22 004 108 04 12 -27.6 -29.5 28.26 4 6 28 239 002 084084086 M23M22M22 005 111 04 15 -28.9 -31.1 28.26 7 8 38 249 -004 082084086 M23M23M22 005 114 04 18 -28.7 -31.0 28.25 6 9 22 233 -002 080083086 M24M23M22 003 117 04 21 -28.3 -31.1 28.25 7 10 24 235 -003 077083086 M25M24M23 004 120 05 00 -29.2 -31.9 28.25 7 11 21 232 -009 077082086 M25M24M23 002 * 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.