USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2026050112 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 01 12 -31.7 -40.3 28.71 21 21 130 341 -003 050023013 M28M25M22 000 01 01 13 -34.6 -40.2 28.69 16 25 123 334 -046 057018012 M25M22M21 000 02 01 14 -33.6 -39.7 28.65 17 29 124 335 -033 054016012 M24M21M20 000 03 01 15 -33.6 -39.6 28.61 19 31 120 331 -026 055014011 M23M20M19 000 04 01 16 -33.0 -39.3 28.60 19 32 117 328 -045 053013010 M22M19M18 000 05 01 17 -32.1 -39.1 28.54 19 32 119 330 017 050011010 M21M18M17 000 06 01 18 -30.4 -38.2 28.53 18 31 120 331 045 047010009 M19M16M16 000 07 01 19 -29.3 -37.4 28.51 17 31 122 333 016 045008010 M17M15M15 000 08 01 20 -28.0 -36.0 28.48 17 31 123 334 005 047009015 M16M14M14 000 09 01 21 -26.8 -33.2 28.45 17 31 121 332 -026 054019026 M15M14M14 000 10 01 22 -26.0 -30.9 28.46 15 28 120 331 049 063033039 M14M13M13 000 11 01 23 -24.8 -28.9 28.41 15 27 120 331 -042 069035043 M14M13M13 000 12 02 00 -23.5 -27.8 28.41 14 25 116 327 089 068036037 M13M12M12 000 13 02 01 -21.8 -26.3 28.41 13 21 105 316 -017 067059067 M12M11M11 000 14 02 02 -20.9 -24.6 28.40 13 21 99 310 006 072052076 M11M11M11 000 15 02 03 -20.2 -23.9 28.39 13 21 87 298 007 072044065 M10M11M11 000 16 02 04 -20.5 -24.3 28.39 13 21 80 291 -101 071047064 M11M10M10 000 17 02 05 -20.4 -23.7 28.40 14 22 68 279 019 075050058 M10M10M10 000 18 02 06 -19.7 -23.2 28.39 15 24 58 269 -057 074053047 M10M09M10 000 19 02 07 -18.8 -22.3 28.40 16 24 56 267 074 074050046 M09M09M10 000 20 02 08 -17.8 -21.7 28.41 13 19 65 276 009 071054047 M09M09M10 000 21 02 09 -19.6 -22.9 28.42 15 23 69 280 -025 075055058 M09M09M10 000 22 02 10 -19.7 -23.5 28.40 14 21 79 290 -034 072046053 M09M09M10 000 23 02 11 -20.9 -24.4 28.38 17 25 76 287 -007 073039047 M10M10M09 000 24 02 12 -21.1 -24.8 28.35 15 25 68 279 057 073038039 M10M10M10 000 25 02 13 -20.5 -24.1 28.35 19 30 68 279 046 073037035 M10M09M09 000 26 02 14 -19.8 -23.3 28.37 20 30 72 283 -041 074042043 M11M10M10 000 27 02 15 -19.9 -23.2 28.37 19 29 75 285 -141 075043045 M12M10M10 000 28 02 16 -20.4 -23.4 28.37 20 31 72 283 -029 077043047 M12M11M11 000 29 02 17 -20.7 -23.5 28.39 19 30 73 284 023 078048044 M13M12M11 000 30 02 18 -21.4 -23.9 28.40 19 30 68 279 097 080050050 M14M12M12 000 31 02 19 -22.3 -24.8 28.41 17 31 54 265 016 080067053 M14M13M13 000 32 02 20 -22.0 -24.4 28.45 21 35 40 251 -204 081084057 M15M13M12 000 33 02 21 -19.6 -20.9 28.48 22 39 30 241 -319 090085047 M15M14M14 002 34 02 22 -19.3 -20.2 28.53 20 30 34 245 -306 093092066 M15M14M15 001 35 02 23 -18.2 -20.0 28.56 19 30 37 248 -292 086094053 M15M15M15 002 36 03 00 -20.5 -24.2 28.58 18 28 46 257 -255 072089047 M14M15M15 001 37 03 01 -21.8 -25.7 28.59 16 26 54 265 -128 071054051 M14M14M14 000 38 03 02 -22.4 -25.9 28.61 15 25 66 277 033 073042053 M14M14M14 000 39 03 03 -23.0 -26.1 28.65 9 17 108 319 181 076049074 M15M15M15 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.