USAP Siple Dome (SDM) site lat/lon = (-81.6640,-149.0175) cell lat/lon = (-81.6600,-148.9887) Forecast initialized at 2026-11-12/12 UTC MPAS cell scale: 2.3 km 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) (*) 0 12 12 -22.6 -27.3 28.54 0 0 66 277 000 72 64 66 -18-17-17 000 1 12 13 -21.8 -25.8 28.53 1 2 141 352 000 83 61 65 -17-16-17 000 2 12 14 -21.7 -25.6 28.54 1 3 138 349 000 84 60 68 -16-16-17 000 3 12 15 -21.0 -25.4 28.53 1 5 167 18 000 79 61 68 -16-16-17 000 4 12 16 -20.5 -25.2 28.54 2 5 181 32 000 78 65 64 -16-17-17 000 5 12 17 -20.3 -24.9 28.53 2 6 178 29 001 78 66 61 -17-17-17 000 6 12 18 -19.9 -24.6 28.56 1 4 190 41 000 77 66 56 -17-17-18 000 7 12 19 -19.6 -24.3 28.54 1 3 209 60 000 78 68 54 -17-17-18 000 8 12 20 -19.3 -24.0 28.55 1 3 231 82 000 77 68 51 -17-17-18 000 9 12 21 -18.9 -23.6 28.57 2 4 239 90 001 77 65 50 -17-17-18 000 10 12 22 -19.0 -22.9 28.56 2 5 240 91 000 80 64 50 -17-17-18 000 11 12 23 -19.0 -22.7 28.57 2 3 235 86 000 82 61 52 -17-17-18 000 12 13 00 -19.2 -22.7 28.57 2 3 232 83 000 83 62 53 -17-17-18 000 13 13 01 -19.3 -23.1 28.59 2 3 228 79 000 84 63 52 -17-17-18 000 14 13 02 -19.5 -23.3 28.60 0 1 57 268 001 85 60 51 -17-17-17 000 15 13 03 -20.0 -23.5 28.61 2 2 34 245 000 88 60 50 -17-17-18 000 16 13 04 -21.2 -23.7 28.60 4 4 31 242 000 97 61 50 -17-17-18 000 17 13 05 -21.4 -24.8 28.63 4 4 36 247 000 88 57 49 -17-17-17 000 18 13 06 -21.1 -24.6 28.64 4 4 40 251 000 87 53 48 -17-17-17 000 19 13 07 -21.1 -24.7 28.63 3 3 53 264 000 86 52 48 -17-17-17 000 20 13 08 -21.2 -24.9 28.63 2 4 82 293 000 85 50 50 -17-17-17 000 21 13 09 -21.4 -25.0 28.64 2 5 114 325 001 86 48 56 -17-16-17 000 22 13 10 -21.6 -25.3 28.65 3 6 120 331 000 85 46 58 -16-16-17 000 23 13 11 -21.8 -25.6 28.65 4 7 105 316 000 85 51 63 -16-16-17 000 24 13 12 -22.6 -25.1 28.65 5 6 76 287 001 96 54 71 -16-16-16 000 25 13 13 -22.0 -25.0 28.67 6 7 53 264 002 89 52 65 -15-16-16 000 26 13 14 -21.7 -24.8 28.68 6 7 44 255 000 89 54 64 -15-15-16 000 27 13 15 -21.2 -24.8 28.68 5 6 37 248 000 84 57 61 -15-15-16 000 28 13 16 -20.6 -24.6 28.68 5 6 34 245 000 80 59 60 -15-16-16 000 29 13 17 -19.9 -24.3 28.69 5 5 31 242 000 76 61 61 -15-16-16 000 30 13 18 -19.1 -23.9 28.71 5 6 24 235 000 72 60 61 -15-16-16 000 31 13 19 -18.5 -23.4 28.72 5 6 22 233 000 69 57 60 -15-15-16 000 32 13 20 -18.1 -22.9 28.72 4 6 24 235 001 68 53 58 -15-15-16 000 33 13 21 -17.7 -22.4 28.73 4 5 36 248 000 68 50 57 -15-15-16 000 34 13 22 -17.4 -22.0 28.73 4 4 47 258 000 67 51 56 -15-15-16 000 35 13 23 -17.1 -22.0 28.74 4 4 54 265 001 64 51 53 -15-15-16 000 36 14 00 -16.9 -22.0 28.75 4 4 65 276 001 65 52 50 -15-16-16 000 37 14 01 -16.9 -22.2 28.75 4 4 83 294 000 64 51 48 -15-15-16 000 38 14 02 -17.4 -22.4 28.75 4 6 101 312 000 66 54 48 -15-15-16 000 39 14 03 -18.1 -22.9 28.75 6 8 107 318 000 67 50 48 -15-15-16 000 40 14 04 -18.8 -23.7 28.75 6 9 111 322 000 67 42 52 -15-15-16 000 41 14 05 -19.5 -24.9 28.75 7 10 109 320 000 63 47 47 -14-15-15 000 42 14 06 -20.1 -25.0 28.75 7 10 101 312 000 69 48 42 -14-15-15 000 43 14 07 -20.6 -24.6 28.75 7 10 96 307 001 78 46 39 -14-14-15 000 44 14 08 -20.9 -24.5 28.73 8 12 100 311 001 82 43 35 -14-14-14 000 45 14 09 -21.0 -25.0 28.72 9 13 101 312 001 78 39 33 -13-14-14 000 46 14 10 -20.9 -25.0 28.71 9 14 101 312 003 76 41 35 -13-13-14 000 47 14 11 -20.6 -25.7 28.70 10 15 103 314 001 67 40 38 -13-13-13 000 48 14 12 -20.4 -25.0 28.68 10 16 115 326 002 72 34 31 -12-13-13 000 49 14 13 -20.1 -25.0 28.67 10 19 127 338 001 71 35 40 -12-11-11 000 50 14 14 -20.0 -24.6 28.66 10 18 121 332 001 73 38 39 -11-10-11 000 51 14 15 -19.0 -21.7 28.64 10 19 117 328 -002 92 36 35 -10 -9-10 000 52 14 16 -18.2 -21.5 28.62 9 20 114 325 003 86 29 37 -9 -9-10 000 53 14 17 -17.7 -21.8 28.58 9 19 108 319 -004 77 34 27 -10 -9-10 000 54 14 18 -17.9 -21.8 28.54 13 22 106 317 008 81 32 31 -9 -9 -9 000 55 14 19 -17.4 -21.0 28.50 17 26 102 313 -002 84 31 22 -12-10 -9 000 56 14 20 -16.6 -19.9 28.46 20 31 98 309 002 85 37 16 -13-11-10 000 57 14 21 -15.4 -18.6 28.44 22 33 88 299 000 86 34 18 -14-11-10 000 58 14 22 -13.9 -16.7 28.41 20 31 84 295 -006 88 50 28 -14-12-11 000 59 14 23 -12.8 -15.6 28.37 21 34 88 299 032 87 77 56 -13-14-13 000 60 15 00 -12.0 -14.8 28.34 22 35 93 304 -002 87 83 56 -13-13-14 000 61 15 01 -11.5 -14.5 28.27 24 36 94 305 -018 85 77 53 -12-13-13 000 62 15 02 -11.6 -14.4 28.25 22 34 89 300 006 86 80 98 -12-13-13 000 63 15 03 -11.5 -14.2 28.21 22 31 77 288 003 87 89 96 -11-10-10 000 64 15 04 -11.1 -13.1 28.17 23 33 70 281 016 93 90 89 -9 -8 -9 000 65 15 05 -11.0 -12.1 28.17 17 29 75 286 005 102 81 93 -9 -8 -9 000 66 15 06 -10.9 -12.1 28.16 16 27 77 288 000 101 78 78 -8 -8 -8 000 67 15 07 -10.8 -12.2 28.16 16 25 70 281 005 99 62 57 -8 -7 -8 000 68 15 08 -11.9 -12.3 28.17 14 22 61 272 003 110 62 56 -7 -8 -8 000 69 15 09 -12.9 -13.3 28.18 12 20 55 266 005 113 68 60 -8 -8 -9 000 70 15 10 -13.8 -14.2 28.19 11 19 60 271 001 114 68 56 -8 -8 -8 000 71 15 11 -14.2 -14.6 28.22 10 21 58 269 001 114 75 65 -8 -8 -9 000 72 15 12 -14.1 -14.5 28.25 11 19 56 267 007 114 67 83 -8 -8 -9 000 73 15 13 -14.2 -14.5 28.28 11 21 54 265 011 114 68 86 -7 -8 -9 000 74 15 14 -13.6 -14.3 28.30 12 22 56 267 019 110 69 77 -7 -8 -9 000 75 15 15 -13.3 -14.6 28.33 14 25 53 264 016 102 64 60 -6 -7 -8 000 76 15 16 -12.8 -14.8 28.36 17 27 56 267 017 94 63 60 -7 -7 -8 000 77 15 17 -12.1 -14.7 28.39 17 29 56 267 020 89 61 55 -6 -7 -8 000 78 15 18 -11.4 -14.6 28.41 18 31 56 267 025 83 63 57 -6 -7 -8 000 79 15 19 -10.4 -14.1 28.44 18 31 52 263 035 78 54 60 -7 -6 -7 000 80 15 20 -9.9 -13.5 28.46 19 33 61 272 040 78 49 62 -5 -6 -7 000 81 15 21 -9.4 -12.9 28.49 17 30 65 276 026 79 42 51 -4 -5 -7 000 82 15 22 -9.1 -12.2 28.50 19 27 74 285 021 82 39 46 -4 -5 -6 000 83 15 23 -8.4 -11.8 28.51 18 29 71 282 027 79 36 37 -4 -5 -6 000 84 16 00 -7.9 -11.3 28.51 17 30 74 285 020 78 32 36 -3 -4 -5 000 85 16 01 -7.3 -10.5 28.51 19 31 77 288 014 80 34 41 -4 -4 -5 000 86 16 02 -6.7 -9.4 28.52 19 32 76 287 012 84 39 49 -4 -4 -5 000 87 16 03 -6.2 -8.7 28.52 19 33 74 285 018 84 39 54 -3 -3 -4 000 88 16 04 -5.8 -8.3 28.52 19 31 73 284 013 85 55 45 -4 -4 -5 000 89 16 05 -6.1 -8.3 28.53 17 31 66 277 016 86 66 46 -4 -5 -5 000 90 16 06 -6.7 -8.3 28.53 16 27 60 271 010 91 38 42 -4 -4 -5 000 91 16 07 -7.4 -8.7 28.54 13 26 67 278 012 96 33 34 -2 -3 -4 000 92 16 08 -7.7 -8.7 28.54 14 23 79 290 005 100 29 43 -1 -2 -3 000 93 16 09 -7.9 -9.1 28.55 16 26 80 291 013 97 40 49 -3 -2 -3 000 94 16 10 -8.5 -10.1 28.56 16 25 78 289 003 94 37 45 -3 -2 -3 000 95 16 11 -8.8 -10.7 28.57 17 27 72 283 004 93 41 42 -5 -4 -4 000 96 16 12 -9.1 -11.3 28.57 18 27 69 280 008 90 37 46 -5 -4 -5 000 97 16 13 -9.4 -11.5 28.58 18 27 66 277 015 91 44 52 -6 -4 -5 000 98 16 14 -9.8 -11.7 28.57 17 26 64 275 017 93 36 53 -6 -4 -5 000 99 16 15 -9.8 -12.0 28.57 16 26 66 277 016 89 35 46 -5 -4 -5 000 100 16 16 -9.8 -12.3 28.57 18 28 67 278 004 87 44 40 -7 -5 -5 000 101 16 17 -9.7 -12.3 28.57 19 29 71 282 -003 87 50 46 -8 -8 -7 000 102 16 18 -9.5 -12.3 28.56 20 29 75 286 -003 85 41 49 -8 -7 -7 000 103 16 19 -9.5 -12.1 28.56 19 29 74 285 007 86 50 52 -9 -8 -9 000 104 16 20 -9.1 -11.8 28.56 19 29 71 282 004 86 52 64 -9 -9 -9 000 105 16 21 -8.9 -11.5 28.56 18 28 73 284 001 86 50 77 -9 -8 -9 000 106 16 22 -8.6 -11.2 28.56 18 27 75 286 001 86 46 72 -9 -8 -9 000 107 16 23 -8.4 -11.0 28.56 18 26 75 286 005 85 39 59 -8 -8 -9 000 108 17 00 -8.2 -10.7 28.56 17 25 78 289 -001 86 38 55 -8 -7 -8 000 109 17 01 -8.2 -10.5 28.56 17 25 82 293 000 87 38 57 -8 -7 -8 000 110 17 02 -8.2 -10.4 28.56 16 25 83 294 001 89 38 54 -8 -7 -8 000 111 17 03 -8.2 -10.3 28.55 16 27 84 295 002 89 37 49 -7 -7 -8 000 112 17 04 -8.3 -10.4 28.54 17 27 87 298 000 90 38 43 -7 -7 -8 000 113 17 05 -8.6 -10.8 28.53 15 25 88 299 -003 90 54 43 -7 -7 -8 000 114 17 06 -8.8 -10.8 28.53 14 24 86 297 005 90 54 51 -6 -7 -8 000 115 17 07 -9.1 -10.8 28.52 14 24 87 298 002 94 58 50 -7 -7 -8 000 116 17 08 -9.1 -10.5 28.51 14 26 88 299 002 96 61 54 -6 -7 -8 000 117 17 09 -9.4 -10.8 28.50 15 26 84 295 004 97 58 50 -6 -7 -8 000 118 17 10 -9.7 -11.2 28.50 15 25 82 293 005 96 56 51 -6 -7 -8 000 119 17 11 -10.2 -11.9 28.51 14 24 83 294 001 96 52 49 -6 -6 -7 000 120 17 12 -10.8 -13.0 28.52 16 26 84 295 002 91 52 47 -6 -6 -7 000 * 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.