USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2026042912 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 29 12 -34.4 -37.6 28.12 34 36 12 223 -045 069075069 M36M35M32 000 01 29 13 -35.2 -37.1 28.13 32 47 16 227 -426 083086068 M36M34M33 007 02 29 14 -35.1 -36.7 28.21 33 49 15 226 -368 086099079 M35M35M34 008 03 29 15 -33.9 -35.6 28.22 33 48 15 226 -341 085100080 M34M35M34 009 04 29 16 -33.7 -35.5 28.27 32 47 14 225 -321 084100078 M34M35M34 004 05 29 17 -33.7 -35.6 28.31 31 45 14 225 -302 084100074 M34M35M34 005 06 29 18 -34.3 -36.1 28.34 31 45 14 225 -334 083099075 M35M34M33 006 07 29 19 -34.8 -36.6 28.38 31 45 13 224 -284 083097076 M35M34M33 006 08 29 20 -35.0 -36.8 28.41 30 44 12 223 -260 084094072 M34M33M32 008 09 29 21 -35.1 -37.0 28.45 29 43 9 220 -280 083083067 M34M33M32 009 10 29 22 -34.8 -37.3 28.50 28 41 12 223 -131 078079070 M34M33M32 012 11 29 23 -34.8 -37.5 28.55 27 41 18 229 -109 077083072 M33M33M32 015 12 30 00 -34.8 -37.4 28.59 27 40 19 230 -069 077083075 M33M32M31 016 13 30 01 -34.7 -37.3 28.64 26 38 18 229 -045 077085079 M33M31M30 018 14 30 02 -34.7 -37.2 28.69 24 35 14 225 -071 078080082 M32M30M29 020 15 30 03 -34.6 -37.1 28.73 22 32 9 220 -053 078079076 M31M29M29 021 16 30 04 -34.6 -37.0 28.76 20 29 8 219 001 079076074 M30M29M29 016 17 30 05 -34.5 -36.8 28.79 18 27 8 219 -002 080077077 M30M28M28 013 18 30 06 -34.3 -36.6 28.82 17 26 6 217 -004 080076075 M30M28M28 014 19 30 07 -34.3 -36.6 28.86 16 24 12 223 021 079076074 M30M29M28 015 20 30 08 -34.5 -36.9 28.88 14 22 18 229 034 079073076 M30M28M28 013 21 30 09 -34.5 -36.8 28.91 14 21 16 227 014 080066078 M29M28M27 009 22 30 10 -34.7 -36.8 28.93 13 20 17 228 -019 081061082 M29M27M27 006 23 30 11 -35.0 -37.0 28.95 13 20 20 231 -030 082057084 M29M27M27 003 24 30 12 -35.0 -36.8 28.96 13 19 22 233 -017 084055090 M29M27M27 002 25 30 13 -35.0 -36.4 28.98 12 18 25 236 -018 087058085 M28M27M28 001 26 30 14 -35.1 -36.4 28.99 11 15 29 240 -014 088061077 M28M27M28 000 27 30 15 -35.3 -36.4 29.00 10 13 34 245 -018 089066068 M28M28M29 000 28 30 16 -35.2 -36.4 29.01 8 11 42 253 -026 090071063 M28M28M29 000 29 30 17 -35.1 -36.4 29.01 8 10 55 266 -015 088070061 M28M29M29 000 30 30 18 -35.5 -37.1 29.01 9 12 63 274 -005 086063063 M28M28M28 000 31 30 19 -35.6 -37.5 29.01 11 15 66 277 -004 083056060 M28M28M28 000 32 30 20 -35.3 -37.3 29.00 12 17 71 282 -023 081054053 M28M27M27 000 33 30 21 -35.1 -37.4 28.99 12 19 76 287 -024 080053051 M27M27M27 000 34 30 22 -35.0 -37.8 28.99 13 20 81 291 -014 076052048 M27M27M27 000 35 30 23 -34.9 -38.3 28.98 14 22 84 295 -008 071049043 M27M27M27 000 36 01 00 -34.8 -38.5 28.98 15 24 84 295 -011 069046040 M27M27M26 000 37 01 01 -34.8 -38.5 28.97 16 26 84 295 -011 068041037 M27M26M26 000 38 01 02 -34.6 -38.4 28.96 17 27 85 296 -011 068038036 M27M26M26 000 39 01 03 -34.3 -38.3 28.95 17 28 88 299 -015 067037032 M27M26M25 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.