USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2026101300 WRF 2.67-km 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 13 00 -23.4 -28.5 28.72 10 9 125 336 -002 070054028 M23M21M20 000 01 13 01 -26.1 -30.0 28.72 9 12 114 325 006 070046024 M21M19M19 000 02 13 02 -26.4 -30.2 28.71 10 14 110 321 -015 070040023 M20M18M18 000 03 13 03 -26.4 -30.3 28.67 10 15 111 322 -007 070036022 M20M18M18 000 04 13 04 -26.7 -30.4 28.68 10 15 120 331 -017 071035021 M20M18M18 000 05 13 05 -27.2 -30.7 28.66 11 16 124 335 -015 072034019 M20M18M17 000 06 13 06 -27.7 -31.2 28.64 11 17 122 333 -026 072033019 M19M18M17 000 07 13 07 -27.4 -31.2 28.59 12 18 127 338 -013 070028016 M18M17M16 000 08 13 08 -27.1 -31.1 28.58 12 20 126 337 003 069024014 M18M16M15 000 09 13 09 -26.6 -30.7 28.56 12 20 128 339 -015 068019012 M17M15M14 000 10 13 10 -26.7 -30.9 28.56 12 20 130 341 -017 068021012 M17M15M14 000 11 13 11 -27.1 -31.5 28.52 12 18 138 349 -012 066020011 M17M14M14 000 12 13 12 -27.5 -31.9 28.50 12 20 136 347 -017 066021010 M17M14M13 000 13 13 13 -26.9 -31.8 28.51 12 19 132 343 -033 064020010 M16M14M13 000 14 13 14 -26.6 -31.6 28.50 12 20 133 344 011 063023011 M16M13M13 000 15 13 15 -26.4 -31.8 28.48 11 17 138 349 018 060022013 M15M13M13 000 16 13 16 -25.8 -32.1 28.49 11 16 142 353 -003 056016022 M15M13M12 000 17 13 17 -25.2 -32.6 28.47 10 14 148 359 -026 050012015 M15M13M13 000 18 13 18 -24.6 -31.9 28.46 9 14 145 356 -028 051019015 M16M13M12 000 19 13 19 -23.7 -30.9 28.45 9 12 154 5 003 052043053 M16M13M13 000 20 13 20 -23.2 -30.6 28.44 8 12 156 7 007 051054066 M16M13M12 000 21 13 21 -22.3 -30.4 28.43 7 10 156 7 -008 048060069 M15M13M13 000 22 13 22 -21.7 -30.1 28.45 6 8 149 0 -007 047065066 M16M14M13 000 23 13 23 -21.2 -29.9 28.44 4 5 131 342 -009 046064063 M16M14M13 000 24 14 00 -21.6 -28.4 28.43 4 4 334 185 -006 054056064 M17M15M13 000 25 14 01 -21.3 -28.2 28.44 4 5 332 183 022 054050070 M16M15M14 000 26 14 02 -20.5 -28.8 28.46 4 5 332 183 015 048048071 M16M14M13 000 27 14 03 -20.4 -28.7 28.46 4 5 346 197 008 047051069 M16M14M13 000 28 14 04 -19.9 -29.1 28.49 3 4 9 220 -001 044054068 M15M14M13 000 29 14 05 -23.1 -27.9 28.48 8 8 47 258 004 065060070 M16M14M13 000 30 14 06 -24.5 -27.0 28.51 11 14 51 262 001 080070070 M15M14M13 000 31 14 07 -23.2 -27.1 28.50 11 17 39 250 006 071063062 M14M13M13 000 32 14 08 -23.2 -27.5 28.51 13 19 38 249 006 068056057 M14M12M12 000 33 14 09 -23.0 -27.5 28.53 13 20 36 247 026 066057046 M13M12M12 000 34 14 10 -22.6 -27.5 28.54 13 19 38 249 054 065053034 M13M12M11 000 35 14 11 -22.7 -27.5 28.56 13 19 43 254 066 065054024 M14M12M12 000 36 14 12 -23.5 -28.3 28.56 13 19 51 262 081 064024022 M14M12M12 000 37 14 13 -23.4 -29.2 28.59 15 22 50 261 086 059021019 M13M12M12 000 38 14 14 -22.3 -28.6 28.60 14 22 42 253 083 057024013 M13M12M12 000 39 14 15 -21.4 -27.0 28.62 14 22 42 253 060 061033071 M13M12M11 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.