USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2026050200 WRF thwaites 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 02 00 -20.5 -26.7 28.42 14 16 133 344 -002 068041067 M16M13M12 000 01 02 01 -23.9 -28.5 28.41 14 20 123 334 008 066044070 M13M11M11 001 02 02 02 -23.8 -28.3 28.41 14 21 113 324 000 066041069 M12M10M11 001 03 02 03 -22.3 -26.7 28.38 13 20 100 311 -050 068041074 M11M10M11 001 04 02 04 -20.4 -23.7 28.39 13 21 76 287 010 075049067 M11M10M11 000 05 02 05 -19.9 -22.6 28.41 13 20 58 269 037 080053056 M10M10M10 000 06 02 06 -18.6 -22.0 28.41 13 19 52 263 069 075055046 M09M09M09 000 07 02 07 -17.9 -21.4 28.40 12 16 62 273 100 074048043 M09M08M09 000 08 02 08 -17.0 -21.0 28.41 13 20 68 279 007 071046056 M08M08M09 000 09 02 09 -16.2 -20.9 28.40 12 18 81 292 008 067044062 M07M08M09 000 10 02 10 -17.0 -21.2 28.39 14 22 91 302 003 070042046 M07M07M08 000 11 02 11 -18.3 -21.7 28.38 18 26 82 293 -007 075038041 M08M07M07 000 12 02 12 -19.9 -23.1 28.37 18 28 73 284 -030 075031038 M09M08M08 000 13 02 13 -20.1 -23.2 28.36 20 34 63 274 -005 077041030 M11M10M10 000 14 02 14 -19.3 -22.3 28.36 24 38 57 268 -039 077043037 M12M11M10 000 15 02 15 -18.7 -21.8 28.37 25 37 67 278 -186 077038049 M12M10M10 000 16 02 16 -19.1 -22.1 28.38 25 38 67 278 -158 077038046 M12M11M11 000 17 02 17 -19.8 -22.7 28.40 21 33 67 278 -083 078042047 M13M12M12 000 18 02 18 -20.4 -23.4 28.42 20 31 65 276 -039 077044042 M14M12M12 000 19 02 19 -21.3 -24.1 28.44 20 30 56 267 003 078049042 M15M13M12 000 20 02 20 -21.9 -24.4 28.47 20 30 50 261 -161 081065046 M15M12M12 000 21 02 21 -21.7 -23.5 28.50 19 29 40 251 -277 085069048 M13M11M11 000 22 02 22 -21.1 -22.6 28.53 19 30 34 245 -278 088087038 M14M13M13 000 23 02 23 -21.1 -22.3 28.56 18 28 40 251 -248 090075034 M14M13M14 000 24 03 00 -21.4 -24.4 28.58 17 28 45 256 -222 077080038 M14M13M13 000 25 03 01 -21.4 -25.8 28.60 16 26 47 258 -208 068076043 M13M13M13 000 26 03 02 -21.7 -26.2 28.61 15 25 55 266 -146 067057043 M13M13M13 000 27 03 03 -22.3 -26.5 28.63 14 23 61 272 034 069042043 M14M13M13 000 28 03 04 -22.0 -26.1 28.65 12 19 62 273 062 069042047 M14M13M13 000 29 03 05 -21.2 -25.2 28.65 13 19 59 270 039 070050050 M13M13M13 000 30 03 06 -21.1 -25.1 28.65 11 17 54 265 088 070061048 M13M13M13 000 31 03 07 -21.2 -25.4 28.65 9 13 51 262 255 069064045 M13M12M13 000 32 03 08 -20.1 -25.0 28.65 7 8 75 286 -003 065060045 M12M12M13 000 33 03 09 -21.3 -25.5 28.64 8 8 95 306 -062 069058040 M12M12M13 000 34 03 10 -19.5 -24.3 28.62 7 9 114 325 -038 066055040 M12M12M13 000 35 03 11 -16.4 -22.4 28.60 5 8 151 2 -018 060047035 M11M12M12 000 36 03 12 -17.5 -22.9 28.59 7 11 139 350 011 063044037 M11M12M12 000 37 03 13 -18.7 -23.9 28.58 7 10 124 335 047 063041039 M11M12M12 000 38 03 14 -15.8 -23.6 28.56 3 6 145 356 046 051035039 M11M11M12 000 39 03 15 -16.9 -23.8 28.56 4 6 195 46 130 055040043 M14M13M13 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 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.