USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2025092112 AMPS 8km 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 21 12 -25.0 -28.2 28.83 11 13 344 195 -000 076075077 M24M22M22 000 03 21 15 -29.9 -32.3 28.90 10 17 8 219 -018 080078086 M25M23M23 002 06 21 18 -29.9 -32.5 28.90 9 16 17 228 -020 078077082 M25M23M23 005 09 21 21 -29.7 -32.2 28.90 8 13 30 241 -010 079076082 M24M24M23 001 12 22 00 -29.3 -31.4 28.87 7 10 57 268 -014 082078080 M24M24M24 000 15 22 03 -30.3 -32.4 28.84 9 14 75 286 008 082079072 M24M24M24 000 18 22 06 -29.9 -31.5 28.81 9 14 83 294 -017 086075074 M22M22M23 000 21 22 09 -29.9 -31.6 28.77 10 16 96 307 -007 086075072 M22M22M22 000 24 22 12 -30.2 -32.9 28.70 11 17 93 304 -011 077066066 M22M22M22 000 27 22 15 -29.8 -33.5 28.66 10 15 95 306 -006 070050063 M22M21M21 000 30 22 18 -29.0 -33.4 28.60 9 14 93 304 -009 066035058 M21M21M21 000 33 22 21 -27.7 -32.1 28.54 8 10 99 310 -014 066035052 M20M21M21 000 36 23 00 -26.2 -30.5 28.49 6 7 97 308 -019 067047048 M20M20M21 000 39 23 03 -25.3 -28.9 28.42 4 5 121 332 002 072053043 M20M20M21 000 42 23 06 -26.8 -29.9 28.39 5 5 108 319 008 075051042 M20M20M21 000 45 23 09 -26.4 -30.7 28.35 4 4 84 295 -020 067046041 M20M20M21 000 48 23 12 -26.4 -31.2 28.33 3 4 37 248 -010 064044039 M20M20M21 000 51 23 15 -26.7 -31.4 28.34 4 6 359 209 -009 065042038 M20M20M20 000 54 23 18 -26.8 -31.6 28.36 5 6 23 234 -005 064040036 M20M20M20 000 57 23 21 -27.2 -32.9 28.39 7 9 43 254 -010 058035030 M19M19M20 000 60 24 00 -27.4 -32.6 28.43 8 11 63 274 003 061034057 M18M18M18 000 63 24 03 -25.9 -30.8 28.48 8 11 71 282 006 064057083 M17M17M18 000 66 24 06 -25.9 -30.5 28.53 10 14 78 289 -008 066067083 M16M16M17 000 69 24 09 -25.5 -29.3 28.58 10 14 66 277 007 070073070 M15M16M17 000 72 24 12 -22.1 -25.5 28.62 8 9 68 279 -000 074065064 M15M15M16 000 75 24 15 -19.3 -23.0 28.68 4 4 84 295 -016 073065059 M14M15M16 000 78 24 18 -19.1 -22.5 28.71 4 5 159 10 016 074067058 M15M15M16 000 81 24 21 -20.2 -24.0 28.72 5 6 181 32 -011 072062054 M14M15M16 000 84 25 00 -22.3 -25.8 28.72 6 9 214 65 -001 073047058 M15M15M16 000 87 25 03 -23.5 -27.6 28.72 7 12 238 89 001 069040058 M16M15M16 000 90 25 06 -24.6 -29.0 28.72 7 13 253 104 -001 067039057 M16M16M16 000 93 25 09 -25.3 -30.1 28.72 7 13 280 131 -008 064040057 M16M16M16 000 96 25 12 -25.9 -30.5 28.72 8 15 300 151 011 065043060 M17M16M17 000 99 25 15 -26.8 -30.7 28.75 9 16 320 171 -010 070055066 M17M17M17 000 102 25 18 -27.2 -31.1 28.76 10 17 328 179 -003 070046071 M18M17M18 000 105 25 21 -27.3 -30.8 28.77 10 20 333 184 -004 072033066 M19M18M18 000 108 26 00 -28.0 -31.1 28.79 11 20 341 192 013 075032038 M20M18M18 000 111 26 03 -29.6 -32.5 28.81 12 21 1 212 -010 076037030 M22M19M19 000 114 26 06 -30.8 -33.7 28.84 11 19 19 230 005 076039027 M22M19M19 000 117 26 09 -30.0 -33.2 28.85 11 18 36 247 -016 074037029 M21M19M19 000 120 26 12 -30.3 -33.4 28.82 11 18 49 260 -013 074034034 M20M19M19 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.