USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2025091812 AMPS 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 18 12 -11.6 -13.2 28.33 7 11 92 303 -007 080093096 M11M10M10 000 01 18 13 -12.9 -14.1 28.32 8 9 84 295 021 091084088 M09M09M10 010 02 18 14 -14.0 -15.1 28.33 10 12 77 288 035 092083081 M09M09M10 015 03 18 15 -14.5 -15.3 28.31 11 14 56 267 011 093076073 M09M09M10 016 04 18 16 -14.5 -15.3 28.30 12 18 39 250 -011 094072067 M10M10M10 006 05 18 17 -15.2 -16.0 28.30 10 15 28 239 002 094063056 M09M10M11 001 06 18 18 -14.8 -15.9 28.31 10 14 22 233 028 091071050 M09M10M10 000 07 18 19 -14.8 -15.6 28.28 9 13 37 248 076 094063062 M09M09M10 000 08 18 20 -13.3 -14.7 28.27 8 12 37 248 071 089069077 M09M10M10 001 09 18 21 -12.4 -14.0 28.26 7 10 35 246 091 088081089 M09M10M11 006 10 18 22 -11.9 -13.7 28.25 5 7 50 261 063 087084088 M09M10M10 010 11 18 23 -11.4 -13.2 28.23 6 6 72 283 032 087086093 M09M10M11 020 12 19 00 -11.3 -13.0 28.22 8 11 97 308 -036 087091093 M10M10M11 031 13 19 01 -11.5 -13.1 28.20 8 12 97 308 -000 088083088 M09M10M11 035 14 19 02 -11.4 -13.0 28.19 9 14 105 316 014 088073086 M09M09M10 027 15 19 03 -11.5 -13.3 28.18 11 17 103 314 -001 086073086 M08M09M10 013 16 19 04 -11.5 -13.7 28.17 10 17 106 317 025 084070085 M09M09M10 007 17 19 05 -11.5 -13.7 28.15 10 15 110 321 049 084074088 M09M10M10 009 18 19 06 -11.7 -13.7 28.13 9 13 112 323 045 085077089 M09M09M10 012 19 19 07 -11.9 -13.7 28.12 7 12 116 327 068 087084089 M09M09M10 013 20 19 08 -12.1 -13.6 28.11 6 9 105 316 047 089075087 M09M10M10 015 21 19 09 -12.3 -13.9 28.10 4 5 59 270 018 087069084 M10M10M11 012 22 19 10 -13.2 -14.5 28.10 7 8 300 151 013 090077081 M11M11M11 012 23 19 11 -13.1 -14.2 28.09 8 12 294 145 -020 092089086 M11M11M11 011 24 19 12 -13.8 -15.0 28.10 9 13 310 161 -010 091091092 M12M12M12 014 25 19 13 -14.4 -15.7 28.11 10 16 313 164 -003 090094090 M12M12M12 017 26 19 14 -15.2 -16.4 28.13 11 17 326 177 011 091094087 M13M13M13 018 27 19 15 -16.4 -17.5 28.15 11 16 344 195 013 092093085 M13M13M13 013 28 19 16 -16.9 -17.9 28.17 11 18 349 200 022 092094086 M13M13M13 008 29 19 17 -17.0 -17.4 28.19 11 18 351 202 017 097091071 M13M13M14 003 30 19 18 -16.7 -17.1 28.21 10 18 354 205 021 097090069 M13M13M14 001 31 19 19 -16.6 -17.0 28.24 11 17 359 210 016 097075064 M13M13M14 001 32 19 20 -16.8 -17.2 28.26 12 17 3 214 001 097075060 M13M13M13 000 33 19 21 -17.3 -17.6 28.29 12 17 6 217 -022 097076063 M14M13M13 001 34 19 22 -17.6 -17.9 28.32 12 17 8 219 -004 097077068 M15M13M14 001 35 19 23 -17.5 -17.9 28.35 12 17 355 206 -001 097080074 M16M13M14 001 36 20 00 -17.1 -17.4 28.37 12 17 346 197 006 097081082 M16M13M14 003 37 20 01 -17.3 -17.7 28.40 13 17 352 203 -018 097083089 M16M13M14 006 38 20 02 -17.7 -18.2 28.42 13 18 351 202 -029 096083090 M16M14M14 013 39 20 03 -18.1 -18.8 28.45 13 19 351 202 -031 094083088 M17M14M14 020 * 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.