USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2025093000 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 30 00 -12.8 -18.5 28.75 25 27 77 288 -028 067045042 M14M12M11 000 01 30 01 -15.3 -18.6 28.75 20 32 84 295 -088 076051043 M12M12M11 000 02 30 02 -15.9 -18.7 28.72 20 32 85 296 -070 079050038 M12M12M11 000 03 30 03 -16.0 -18.7 28.73 21 34 80 291 -018 080047033 M12M12M12 000 04 30 04 -16.6 -19.3 28.72 21 33 74 285 -032 080043028 M12M11M11 000 05 30 05 -17.1 -20.0 28.71 19 31 75 285 -005 078040026 M12M11M10 000 06 30 06 -17.2 -20.2 28.70 19 30 74 285 -016 078036028 M11M10M09 000 07 30 07 -17.3 -20.4 28.73 18 28 72 283 -014 077033030 M10M09M09 000 08 30 08 -17.4 -20.6 28.70 18 27 70 281 -003 077032031 M10M09M09 000 09 30 09 -17.6 -20.8 28.68 17 27 73 284 -034 076030031 M09M08M08 000 10 30 10 -17.3 -20.8 28.68 17 27 75 286 020 074029032 M08M08M08 000 11 30 11 -17.1 -20.9 28.68 17 27 73 284 002 072029032 M08M07M08 000 12 30 12 -16.3 -20.4 28.67 16 25 71 282 008 071026032 M08M07M08 000 13 30 13 -16.4 -20.5 28.68 16 25 69 280 012 071025031 M08M07M07 000 14 30 14 -16.4 -20.4 28.66 16 24 71 282 075 071027033 M08M07M08 000 15 30 15 -16.3 -20.1 28.66 15 23 68 279 078 072028039 M08M07M07 000 16 30 16 -15.9 -19.8 28.67 15 22 67 278 073 072030046 M07M07M07 000 17 30 17 -15.3 -19.3 28.66 16 24 70 281 055 072030048 M07M07M07 000 18 30 18 -15.5 -19.3 28.67 16 24 72 283 043 073029043 M07M06M07 000 19 30 19 -15.4 -19.4 28.66 15 23 72 282 014 072031046 M07M07M07 000 20 30 20 -15.6 -19.4 28.66 15 23 73 284 036 073033046 M07M07M07 000 21 30 21 -15.6 -19.6 28.66 15 23 71 282 012 072033047 M07M06M07 000 22 30 22 -16.0 -19.8 28.64 15 23 71 282 037 073032044 M08M06M06 000 23 30 23 -16.5 -20.2 28.63 16 24 72 283 062 074034037 M09M06M07 000 24 01 00 -17.0 -20.5 28.63 16 24 71 282 098 075035048 M09M07M07 000 25 01 01 -17.5 -20.9 28.65 15 24 74 285 070 075034045 M10M07M07 000 26 01 02 -17.7 -21.2 28.63 15 23 78 289 049 074034045 M10M07M08 000 27 01 03 -18.0 -21.4 28.61 16 24 79 290 -034 074034045 M10M08M08 000 28 01 04 -18.1 -21.5 28.61 16 24 76 287 014 074033043 M11M08M08 000 29 01 05 -18.6 -22.0 28.62 15 25 70 281 011 075033040 M12M08M07 000 30 01 06 -19.1 -22.4 28.61 16 27 75 286 095 075033040 M12M08M07 000 31 01 07 -19.6 -22.9 28.61 15 26 73 284 076 076033039 M12M09M08 000 32 01 08 -20.1 -23.2 28.61 15 26 65 276 049 076033039 M12M09M08 000 33 01 09 -20.4 -23.5 28.61 15 24 61 272 050 077034039 M12M10M09 000 34 01 10 -20.6 -23.6 28.61 14 22 63 274 045 077035040 M12M10M09 000 35 01 11 -21.0 -23.8 28.61 12 19 62 273 -020 078036041 M12M10M09 000 36 01 12 -21.1 -24.0 28.60 11 17 55 266 -104 078038042 M13M10M10 000 37 01 13 -21.3 -24.1 28.62 10 14 49 260 -150 078042043 M13M12M11 000 38 01 14 -21.5 -24.2 28.64 9 11 45 256 -042 079046043 M14M13M12 000 39 01 15 -21.3 -24.0 28.64 9 10 36 247 020 079046044 M14M13M12 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.