USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2026050300 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 03 00 -17.6 -23.6 28.67 12 14 79 290 -015 065035039 M16M14M14 000 01 03 01 -22.5 -26.9 28.71 13 19 91 302 007 068028035 M14M13M13 000 02 03 02 -22.2 -26.2 28.68 13 21 70 281 125 070034036 M14M14M14 000 03 03 03 -22.1 -25.8 28.69 13 20 67 278 077 072037045 M13M13M13 000 04 03 04 -21.3 -25.4 28.71 13 18 71 282 051 069034057 M12M12M13 000 05 03 05 -20.5 -25.4 28.71 12 16 77 288 007 065037057 M11M12M13 000 06 03 06 -19.5 -25.6 28.69 10 11 77 288 -013 059042045 M10M11M12 000 07 03 07 -18.0 -25.3 28.67 8 9 85 296 -004 053042038 M10M11M12 000 08 03 08 -16.9 -25.0 28.67 7 9 101 312 004 050034038 M09M11M12 000 09 03 09 -18.6 -25.8 28.65 9 13 110 321 032 053027041 M10M10M11 000 10 03 10 -19.2 -26.5 28.64 7 10 93 304 -088 053026038 M10M11M11 000 11 03 11 -18.9 -26.1 28.63 2 4 160 11 042 053030035 M12M12M12 000 12 03 12 -18.0 -25.2 28.61 1 2 224 75 040 053031031 M13M12M11 000 13 03 13 -18.2 -25.1 28.60 2 3 231 82 035 055036031 M13M13M12 000 14 03 14 -18.0 -25.0 28.59 2 4 256 107 027 054040034 M14M14M13 000 15 03 15 -17.4 -24.8 28.58 3 5 244 95 031 052038038 M13M13M13 000 16 03 16 -17.1 -24.6 28.58 4 7 226 77 013 052036041 M13M13M13 000 17 03 17 -18.9 -24.7 28.58 6 8 247 98 008 060034043 M13M13M13 000 18 03 18 -20.6 -25.1 28.60 7 11 309 160 001 067041042 M15M14M14 000 19 03 19 -20.1 -24.7 28.62 9 14 305 156 027 067040039 M14M14M14 001 20 03 20 -20.5 -24.7 28.64 11 19 315 166 -010 070038037 M14M14M14 001 21 03 21 -21.2 -24.8 28.67 13 23 320 171 012 073038042 M14M14M14 001 22 03 22 -21.9 -25.0 28.71 13 25 332 183 024 076042052 M15M14M14 001 23 03 23 -21.9 -25.0 28.75 14 27 338 189 004 076051052 M15M14M15 001 24 04 00 -22.0 -24.9 28.79 13 26 342 193 -005 077063060 M16M15M15 002 25 04 01 -21.7 -24.4 28.83 12 23 342 193 -001 079064067 M15M15M16 002 26 04 02 -21.3 -23.5 28.86 11 19 343 194 007 082063072 M15M15M16 002 27 04 03 -21.2 -23.3 28.90 9 13 349 200 032 083061072 M15M15M16 002 28 04 04 -21.3 -23.4 28.93 8 10 9 220 043 083061073 M15M15M16 001 29 04 05 -20.7 -22.9 28.96 7 9 25 236 041 082062079 M15M15M16 001 30 04 06 -20.2 -22.6 28.98 7 7 45 256 028 081065083 M15M15M16 001 31 04 07 -20.2 -22.4 29.00 7 8 68 279 023 083070086 M14M15M16 002 32 04 08 -21.2 -23.1 29.03 9 13 96 307 -007 085075090 M15M16M16 004 33 04 09 -20.6 -22.6 29.04 10 14 109 320 017 084072086 M15M15M16 004 34 04 10 -21.0 -22.9 29.04 11 18 121 332 -007 085070084 M15M15M16 003 35 04 11 -21.9 -23.7 29.05 12 20 120 331 021 085070082 M15M15M16 001 36 04 12 -22.4 -24.4 29.06 12 19 117 328 015 084068083 M15M15M16 000 37 04 13 -22.7 -25.3 29.05 11 18 117 328 019 079063075 M15M15M16 000 38 04 14 -23.0 -25.9 29.05 10 16 121 332 030 077064064 M15M15M16 000 39 04 15 -23.7 -26.6 29.05 10 16 117 328 040 077065055 M16M16M16 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.