USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2025091900 AMPS 24km 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 19 00 -9.6 -13.2 28.24 6 7 152 3 -003 082067072 M09M09M09 000 03 19 03 -11.4 -14.2 28.18 10 11 140 351 -003 080061079 M08M08M09 004 06 19 06 -11.5 -13.8 28.14 8 14 118 329 013 083062072 M09M09M09 005 09 19 09 -11.7 -14.8 28.08 4 7 78 289 006 078062083 M09M09M09 003 12 19 12 -13.2 -15.8 28.04 4 6 2 213 -006 081070085 M10M10M10 002 15 19 15 -15.8 -17.3 28.08 8 15 7 218 -010 088081080 M11M11M11 000 18 19 18 -16.6 -17.3 28.13 11 20 2 213 -013 095086069 M12M11M11 000 21 19 21 -14.9 -15.8 28.21 9 13 349 200 010 093088070 M13M12M12 002 24 20 00 -16.0 -17.5 28.30 9 12 356 207 008 088094084 M14M13M13 016 27 20 03 -17.9 -19.6 28.41 11 18 354 205 006 087089084 M15M14M14 017 30 20 06 -18.9 -20.8 28.52 11 18 8 219 018 086085084 M16M14M14 011 33 20 09 -19.3 -21.5 28.63 10 17 18 229 -001 083084087 M17M15M15 027 36 20 12 -21.6 -23.6 28.71 8 13 30 241 -006 084079084 M16M15M15 010 39 20 15 -22.1 -23.6 28.80 7 11 41 252 -010 087081085 M16M16M16 001 42 20 18 -20.2 -21.8 28.85 3 5 40 251 -030 087085085 M16M16M16 001 45 20 21 -19.4 -21.4 28.88 5 6 193 44 021 085088081 M17M17M17 014 48 21 00 -18.9 -21.0 28.89 3 3 197 48 023 084086086 M17M17M17 019 51 21 03 -18.6 -20.6 28.91 3 5 248 99 011 084085085 M18M17M17 049 54 21 06 -20.1 -22.2 28.93 3 4 284 135 006 083085085 M19M19M18 029 57 21 09 -21.1 -23.3 28.96 5 7 333 184 010 082084084 M20M20M19 023 60 21 12 -23.0 -25.4 28.97 6 9 344 195 010 081083084 M21M20M20 018 63 21 15 -24.8 -27.4 29.00 7 11 355 206 001 080083085 M22M21M21 013 66 21 18 -25.2 -27.8 29.01 7 11 357 208 008 079083083 M23M21M21 011 69 21 21 -25.6 -28.2 29.02 6 10 6 217 004 079083083 M23M22M22 012 72 22 00 -26.2 -28.9 29.02 5 8 19 230 -000 078084084 M22M22M22 007 75 22 03 -26.8 -29.1 29.01 5 5 43 254 000 081083083 M23M22M22 003 78 22 06 -27.5 -29.5 29.00 5 5 71 282 -005 083081082 M22M22M21 001 81 22 09 -27.1 -28.8 28.96 5 4 92 303 -009 086079080 M22M21M21 000 84 22 12 -28.2 -29.7 28.91 6 6 107 318 -006 087078077 M22M21M21 000 87 22 15 -28.6 -30.1 28.87 7 8 94 305 -012 087074073 M21M20M20 000 90 22 18 -28.1 -29.8 28.83 7 9 94 305 -004 086073068 M20M20M20 000 93 22 21 -26.9 -28.8 28.77 7 9 94 305 -006 084071064 M20M19M19 000 96 23 00 -25.9 -28.0 28.72 6 8 106 316 -006 082067061 M19M19M19 000 99 23 03 -26.1 -28.3 28.67 6 8 114 325 -005 082062058 M19M18M19 000 102 23 06 -26.0 -28.7 28.64 6 7 114 325 -006 078055053 M18M18M18 000 105 23 09 -24.9 -28.6 28.60 5 5 122 333 -005 071051049 M18M18M18 000 108 23 12 -24.2 -28.6 28.57 4 4 137 348 -004 067047046 M18M18M18 000 111 23 15 -24.2 -29.1 28.55 3 4 130 341 -005 064044044 M18M18M18 000 114 23 18 -23.5 -29.2 28.57 3 3 106 317 -002 060044043 M18M18M18 000 117 23 21 -22.7 -28.9 28.57 2 2 164 15 -007 057043041 M18M18M18 000 120 24 00 -22.7 -28.9 28.59 2 3 93 304 -008 057043040 M18M18M18 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.