USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2025100100 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 01 00 -13.6 -18.1 28.61 12 13 87 298 -013 074044046 M11M09M08 000 01 01 01 -16.2 -19.1 28.58 11 19 96 307 047 078041039 M12M09M08 000 02 01 02 -16.6 -19.8 28.59 14 24 91 302 040 077038035 M12M10M08 000 03 01 03 -17.0 -20.1 28.56 16 28 88 299 080 077038036 M12M10M08 000 04 01 04 -17.3 -20.1 28.56 17 29 83 294 057 079038037 M13M10M08 000 05 01 05 -17.6 -20.3 28.54 19 31 79 290 078 079036036 M13M09M08 000 06 01 06 -18.3 -20.9 28.55 21 33 71 282 081 080030034 M12M08M06 000 07 01 07 -19.1 -21.6 28.56 19 31 63 274 154 081029032 M12M08M06 000 08 01 08 -19.8 -22.4 28.56 16 26 56 267 183 080035032 M12M10M08 000 09 01 09 -20.4 -23.1 28.57 13 21 59 270 132 079036036 M12M10M09 000 10 01 10 -20.8 -23.5 28.59 14 22 64 275 044 079036037 M12M10M09 000 11 01 11 -20.8 -23.6 28.58 15 23 62 273 018 078035037 M12M10M09 000 12 01 12 -20.7 -23.7 28.56 15 23 59 270 032 078035037 M12M10M09 000 13 01 13 -20.6 -23.7 28.58 16 24 55 266 012 076035037 M11M09M08 000 14 01 14 -20.7 -24.0 28.58 16 24 54 265 047 074034036 M11M09M08 000 15 01 15 -20.9 -24.3 28.60 15 22 51 262 047 074035038 M11M09M08 000 16 01 16 -20.9 -24.3 28.61 14 21 42 253 016 074035040 M11M09M08 000 17 01 17 -20.6 -24.0 28.62 13 20 37 248 013 074036040 M11M09M09 000 18 01 18 -20.9 -24.0 28.63 13 19 37 248 012 076038041 M12M10M09 000 19 01 19 -21.3 -23.9 28.62 12 19 33 244 -038 080041042 M13M10M09 000 20 01 20 -21.8 -23.8 28.65 13 20 32 243 -058 084043042 M14M11M10 000 21 01 21 -21.8 -23.6 28.66 13 19 31 242 -051 086047043 M14M12M10 000 22 01 22 -21.9 -23.5 28.65 14 20 31 242 -024 087049045 M14M12M11 000 23 01 23 -22.2 -23.7 28.65 15 22 28 239 -029 088049045 M15M12M11 000 24 02 00 -22.3 -23.8 28.67 16 24 23 234 -020 088048046 M15M13M11 000 25 02 01 -22.5 -24.1 28.71 16 24 19 230 -049 087050047 M16M13M11 000 26 02 02 -23.0 -24.6 28.70 14 23 16 227 -057 087057049 M17M13M12 000 27 02 03 -23.1 -25.1 28.70 15 23 14 225 -056 084060050 M16M13M12 000 28 02 04 -23.1 -25.5 28.71 15 22 14 225 -046 081057049 M16M13M12 000 29 02 05 -23.3 -25.8 28.73 14 21 14 225 -043 080058050 M16M13M12 000 30 02 06 -23.7 -26.2 28.74 14 21 15 226 -045 080058051 M16M13M12 000 31 02 07 -24.0 -26.5 28.74 14 21 17 228 -033 080059052 M16M13M13 000 32 02 08 -24.2 -26.7 28.75 14 20 17 228 -038 080061052 M16M13M13 000 33 02 09 -24.2 -26.4 28.75 13 19 16 227 -035 082058053 M16M14M13 000 34 02 10 -23.7 -25.9 28.75 12 17 14 225 -022 083046055 M15M14M13 000 35 02 11 -23.5 -25.8 28.77 11 15 12 223 -012 082038053 M15M14M13 000 36 02 12 -23.4 -25.7 28.77 10 14 13 224 000 082043049 M15M14M13 000 37 02 13 -23.4 -25.7 28.78 10 13 17 228 -001 082054047 M15M14M14 000 38 02 14 -22.7 -25.1 28.80 9 12 14 225 009 080062049 M15M14M14 000 39 02 15 -22.0 -24.5 28.79 8 11 9 220 009 080064048 M15M14M14 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.