USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2025092812 AMPS 2p67km 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 28 12 -20.0 -29.5 28.69 12 13 147 358 003 053040036 M17M16M14 000 01 28 13 -26.9 -32.1 28.71 10 15 144 355 022 061032030 M16M14M13 000 02 28 14 -25.4 -30.9 28.70 10 16 147 358 064 060028027 M15M13M13 000 03 28 15 -24.9 -30.5 28.68 10 15 154 5 029 060027035 M15M13M13 000 04 28 16 -25.5 -30.6 28.70 10 15 156 7 033 062034045 M16M13M13 000 05 28 17 -25.9 -30.9 28.69 10 14 155 6 -000 063043051 M16M14M13 000 06 28 18 -24.8 -30.6 28.68 7 11 152 3 -037 058050060 M15M13M13 000 07 28 19 -21.8 -29.3 28.69 5 8 138 349 -007 051058073 M14M13M14 000 08 28 20 -19.3 -27.2 28.71 4 6 139 350 002 050064083 M14M14M14 000 09 28 21 -18.6 -26.0 28.70 4 5 106 317 -005 052068086 M14M14M14 000 10 28 22 -18.6 -25.1 28.71 3 3 83 294 -013 057068082 M15M15M13 000 11 28 23 -20.0 -25.3 28.70 3 4 358 209 -013 063069082 M16M14M13 000 12 29 00 -20.5 -25.5 28.71 4 4 7 218 -012 065077074 M15M13M13 000 13 29 01 -20.0 -25.1 28.73 3 3 355 206 -001 064084064 M15M13M13 000 14 29 02 -19.7 -24.8 28.72 2 3 338 189 000 064082060 M14M13M13 000 15 29 03 -19.4 -24.1 28.72 2 2 268 119 000 066078053 M14M13M12 000 16 29 04 -19.5 -23.5 28.74 2 2 167 18 -014 071077048 M14M13M12 000 17 29 05 -19.9 -22.6 28.75 4 5 125 336 001 079080041 M14M13M13 000 18 29 06 -20.8 -22.9 28.73 6 7 117 328 006 084072041 M14M12M12 000 19 29 07 -22.4 -23.9 28.73 7 9 105 316 010 088071045 M13M13M12 000 20 29 08 -22.6 -23.7 28.73 8 11 100 311 -002 091060051 M14M12M12 000 21 29 09 -22.5 -23.6 28.74 9 12 94 305 -011 091045049 M13M12M11 000 22 29 10 -22.5 -24.7 28.74 10 14 83 294 000 083045052 M13M11M10 000 23 29 11 -22.5 -25.2 28.73 11 16 72 283 029 078043044 M12M10M10 000 24 29 12 -22.2 -25.1 28.74 12 17 73 284 046 078040040 M12M10M09 000 25 29 13 -22.2 -25.1 28.75 15 24 70 281 060 077038043 M12M10M09 000 26 29 14 -21.9 -25.1 28.76 17 27 68 279 050 076037047 M11M09M09 000 27 29 15 -21.8 -24.9 28.75 19 29 67 278 -002 076033034 M12M09M08 000 28 29 16 -21.9 -25.1 28.77 20 31 65 276 027 075036028 M12M08M08 000 29 29 17 -23.3 -26.7 28.78 22 33 65 276 044 074038026 M12M09M08 000 30 29 18 -23.8 -27.1 28.79 23 35 65 275 046 074038029 M14M09M09 000 31 29 19 -23.4 -27.1 28.79 20 32 61 271 042 072050032 M13M10M10 000 32 29 20 -23.1 -26.9 28.81 18 27 68 279 046 071050017 M13M11M11 000 33 29 21 -22.9 -26.7 28.83 18 28 71 282 -074 071042018 M13M12M11 000 34 29 22 -22.6 -26.6 28.84 17 27 75 286 -057 070021027 M12M11M11 000 35 29 23 -22.1 -26.2 28.84 17 27 73 284 -001 069028031 M11M10M11 000 36 30 00 -21.7 -25.5 28.83 18 31 72 283 -100 071026037 M11M09M10 000 37 30 01 -21.3 -24.8 28.83 21 34 72 283 -069 073026037 M12M09M10 000 38 30 02 -20.9 -24.6 28.83 20 33 72 283 -046 073028034 M12M09M09 000 39 30 03 -20.9 -24.5 28.82 19 32 73 284 -051 073029033 M12M09M09 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.