USAP Siple Dome (SDM) site lat/lon = (-81.6640,-149.0175) cell lat/lon = (-81.6600,-148.9887) Forecast initialized at 2026-11-11/12 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 11 12 -22.0 -26.2 28.59 9 11 51 262 -001 77 56 50 -19-17-17 000 1 11 13 -23.9 -26.3 28.59 10 14 52 263 -001 101 51 44 -17-16-16 000 2 11 14 -23.2 -25.8 28.59 10 15 59 270 -001 99 49 41 -17-16-16 000 3 11 15 -22.4 -25.2 28.59 9 15 57 268 -001 96 47 42 -16-16-16 000 4 11 16 -21.8 -24.8 28.59 9 14 58 269 000 93 47 46 -16-16-16 000 5 11 17 -21.2 -24.5 28.58 8 12 56 267 000 89 48 49 -16-15-16 000 6 11 18 -20.4 -24.1 28.60 7 10 52 263 000 83 49 51 -16-15-15 000 7 11 19 -19.8 -23.6 28.57 5 6 48 259 001 79 49 52 -15-15-16 000 8 11 20 -18.9 -22.9 28.55 3 4 47 258 002 77 51 52 -15-15-16 000 9 11 21 -18.1 -22.5 28.57 2 2 25 236 002 74 54 56 -15-16-16 000 10 11 22 -17.3 -22.5 28.56 1 2 354 205 000 72 57 58 -16-16-16 000 11 11 23 -17.0 -22.2 28.56 1 2 305 156 -002 72 60 57 -16-16-16 000 12 12 00 -17.4 -21.5 28.54 3 4 328 179 000 75 63 57 -16-16-16 000 13 12 01 -18.0 -21.7 28.54 5 7 341 192 000 81 66 57 -16-16-16 000 14 12 02 -18.8 -22.2 28.54 6 7 354 205 000 85 67 55 -16-16-16 000 15 12 03 -19.7 -22.9 28.56 6 7 6 217 000 88 65 57 -16-16-16 000 16 12 04 -20.5 -23.5 28.55 7 8 16 227 000 91 60 57 -16-16-16 000 17 12 05 -21.3 -24.2 28.55 7 8 24 235 000 92 54 56 -16-16-16 000 18 12 06 -21.9 -24.8 28.55 7 8 31 242 000 91 51 56 -15-16-16 000 19 12 07 -21.9 -24.9 28.54 6 7 33 244 000 91 52 57 -15-16-16 000 20 12 08 -21.3 -24.2 28.54 5 6 31 242 000 91 52 58 -15-16-16 000 21 12 09 -20.1 -23.2 28.55 4 4 22 233 000 90 53 57 -15-16-16 000 22 12 10 -19.7 -23.1 28.55 2 2 9 220 000 86 54 56 -15-16-17 000 23 12 11 -19.7 -23.4 28.54 0 2 356 207 000 83 54 55 -16-16-17 000 24 12 12 -20.1 -23.4 28.53 1 7 124 335 000 87 55 58 -16-16-16 000 25 12 13 -20.7 -23.0 28.54 3 3 91 302 000 98 55 59 -16-16-16 000 26 12 14 -20.1 -22.8 28.55 1 2 96 307 000 93 53 59 -16-16-17 000 27 12 15 -19.5 -22.9 28.54 1 4 150 1 -001 87 54 61 -16-16-17 000 28 12 16 -19.4 -22.8 28.54 1 4 181 32 000 87 57 51 -16-16-17 000 29 12 17 -19.5 -22.5 28.53 1 4 151 2 000 91 60 51 -16-16-17 000 30 12 18 -19.2 -22.5 28.54 0 3 198 49 000 89 66 49 -16-16-17 000 31 12 19 -18.7 -22.2 28.55 1 3 260 111 000 86 70 48 -16-17-17 000 32 12 20 -18.6 -22.1 28.56 3 3 260 111 000 85 71 47 -17-17-17 000 33 12 21 -18.5 -21.8 28.56 3 3 265 116 000 85 72 46 -17-17-17 000 34 12 22 -18.3 -21.4 28.56 3 3 267 118 000 86 69 46 -16-17-17 000 35 12 23 -18.1 -21.1 28.57 3 3 275 126 000 88 61 50 -16-17-17 000 36 13 00 -18.2 -21.1 28.59 2 4 294 145 000 88 53 49 -16-17-17 000 37 13 01 -18.5 -21.4 28.60 3 5 334 185 000 89 51 59 -17-17-17 000 38 13 02 -19.0 -21.5 28.60 3 4 344 195 000 95 51 60 -16-16-17 000 39 13 03 -19.4 -21.9 28.60 4 4 356 207 000 95 55 61 -16-17-17 000 40 13 04 -19.8 -22.5 28.61 4 4 5 216 000 93 57 62 -16-16-17 000 41 13 05 -19.5 -23.1 28.62 3 4 1 212 000 86 56 62 -16-16-17 000 42 13 06 -19.3 -24.2 28.63 2 3 350 201 000 76 57 61 -16-16-17 000 43 13 07 -19.4 -25.0 28.64 1 2 334 185 000 70 57 61 -16-16-17 000 44 13 08 -19.7 -25.5 28.64 1 5 184 35 000 68 56 61 -16-16-17 000 45 13 09 -20.3 -25.8 28.63 3 6 150 1 000 71 56 61 -16-16-17 000 46 13 10 -20.8 -25.2 28.64 4 6 122 333 000 79 55 60 -15-16-17 000 47 13 11 -20.8 -24.5 28.65 4 6 107 319 000 86 53 58 -15-16-17 000 48 13 12 -20.6 -24.0 28.65 4 5 101 312 000 87 53 57 -15-16-17 000 49 13 13 -20.3 -23.7 28.66 4 5 101 312 000 88 53 56 -15-16-17 000 50 13 14 -20.0 -23.1 28.67 4 5 99 310 000 91 52 55 -15-16-17 000 51 13 15 -19.9 -22.8 28.68 4 5 95 306 000 92 50 56 -15-16-16 000 52 13 16 -20.1 -23.5 28.69 4 4 84 295 000 87 51 56 -15-16-16 000 53 13 17 -19.9 -24.6 28.69 5 5 61 272 000 74 54 53 -15-16-16 000 54 13 18 -19.2 -23.3 28.69 5 5 52 263 000 77 54 53 -15-16-16 000 55 13 19 -18.8 -22.3 28.70 5 6 52 263 000 82 54 55 -15-16-16 000 56 13 20 -18.1 -21.8 28.70 5 6 51 262 000 79 53 57 -15-16-16 000 57 13 21 -17.5 -21.4 28.71 5 6 49 260 000 78 53 58 -15-15-16 000 58 13 22 -17.2 -21.5 28.71 5 7 50 261 000 75 50 56 -15-15-16 000 59 13 23 -17.1 -21.4 28.73 5 8 53 264 000 75 48 52 -15-15-16 000 60 14 00 -17.1 -21.5 28.74 5 8 57 268 001 73 46 51 -15-15-16 000 61 14 01 -17.1 -21.8 28.74 5 9 64 275 002 70 46 49 -15-15-16 000 62 14 02 -17.2 -22.2 28.74 6 9 69 280 002 65 45 53 -14-15-15 000 63 14 03 -17.5 -22.7 28.73 6 10 78 289 001 64 43 58 -14-14-15 000 64 14 04 -17.9 -22.9 28.72 7 11 84 295 001 66 44 61 -13-14-15 000 65 14 05 -18.2 -23.2 28.72 8 11 85 296 001 66 42 60 -13-14-15 000 66 14 06 -18.5 -24.0 28.72 8 11 92 303 000 62 37 59 -13-14-15 000 67 14 07 -19.0 -24.3 28.72 8 13 103 314 000 63 42 53 -12-13-14 000 68 14 08 -19.5 -24.8 28.71 9 15 111 322 001 64 33 47 -12-13-14 000 69 14 09 -19.9 -25.0 28.70 9 16 116 327 000 67 36 40 -12-13-13 000 70 14 10 -20.3 -24.9 28.67 10 17 118 329 000 72 39 41 -12-12-13 000 71 14 11 -20.2 -23.0 28.65 10 19 110 321 001 93 37 39 -12-11-12 000 72 14 12 -19.6 -21.5 28.63 11 22 113 324 -001 102 32 42 -12-10-11 000 73 14 13 -18.8 -21.7 28.61 12 23 106 317 004 90 33 38 -11-11-11 000 74 14 14 -17.8 -21.4 28.58 12 24 110 321 -002 83 35 35 -10-10-11 000 75 14 15 -17.3 -21.7 28.55 11 24 103 314 001 75 35 35 -10-10-11 000 76 14 16 -18.7 -22.4 28.52 16 27 92 303 000 83 31 27 -10 -9 -9 000 77 14 17 -18.2 -21.9 28.48 19 33 97 308 -001 83 26 22 -13 -8 -8 000 78 14 18 -17.1 -20.9 28.43 22 35 99 310 006 82 31 18 -15 -9 -8 000 79 14 19 -16.2 -19.8 28.39 24 37 101 312 000 83 43 34 -15-12 -8 000 80 14 20 -15.0 -18.2 28.35 26 39 100 311 006 85 68 54 -15-14-13 000 81 14 21 -13.5 -16.6 28.30 26 40 100 311 009 85 70 30 -14-14-12 000 82 14 22 -12.2 -15.5 28.26 26 36 97 308 -004 82 40 45 -12 -9 -9 000 83 14 23 -12.1 -15.1 28.24 21 31 86 297 -001 86 49 68 -12-10-10 000 84 15 00 -10.8 -12.6 28.21 20 30 71 282 -004 95 96 84 -10 -9-10 000 85 15 01 -10.5 -13.1 28.18 20 30 80 291 006 87 60 83 -10 -9 -9 000 86 15 02 -10.3 -13.0 28.15 22 31 80 291 006 86 51 63 -10 -8 -9 000 87 15 03 -10.3 -12.9 28.12 21 31 78 289 001 87 51 54 -9 -8 -9 000 88 15 04 -10.4 -12.6 28.10 20 30 75 286 001 90 56 50 -9 -8 -9 000 89 15 05 -10.4 -12.4 28.08 20 30 66 277 001 93 52 42 -8 -7 -8 000 90 15 06 -10.4 -12.1 28.07 21 30 60 271 009 95 46 42 -7 -7 -8 000 91 15 07 -10.1 -11.9 28.06 21 30 58 269 009 94 57 58 -8 -7 -8 000 92 15 08 -11.0 -12.2 28.07 16 24 63 274 008 100 49 77 -7 -6 -8 000 93 15 09 -11.4 -12.4 28.07 17 27 55 266 011 104 54 78 -7 -6 -7 000 94 15 10 -11.7 -12.4 28.09 17 28 43 254 017 106 62 84 -7 -7 -8 000 95 15 11 -12.0 -12.4 28.12 17 27 41 252 014 110 75 68 -7 -7 -8 000 96 15 12 -12.3 -12.7 28.16 16 26 39 250 017 111 74 81 -8 -7 -8 000 97 15 13 -12.3 -12.8 28.20 15 27 41 252 015 109 78 83 -6 -7 -8 000 98 15 14 -12.1 -12.5 28.23 16 28 49 260 021 110 70 56 -6 -7 -8 000 99 15 15 -11.8 -13.9 28.26 17 30 48 259 023 92 64 50 -6 -7 -8 000 100 15 16 -11.3 -14.7 28.29 17 31 55 266 021 81 49 56 -5 -6 -7 000 101 15 17 -11.2 -14.8 28.32 17 28 58 269 023 79 43 52 -5 -6 -7 000 102 15 18 -11.1 -14.5 28.35 19 30 58 269 030 81 47 44 -6 -6 -7 000 103 15 19 -10.8 -14.2 28.38 18 29 60 271 027 80 44 49 -6 -5 -7 000 104 15 20 -9.9 -13.5 28.41 18 29 64 275 024 78 41 55 -5 -5 -6 000 105 15 21 -9.1 -12.8 28.43 19 31 68 279 024 77 35 48 -4 -5 -6 000 106 15 22 -8.4 -12.2 28.45 20 33 71 282 025 75 34 47 -3 -5 -6 000 107 15 23 -8.2 -11.6 28.46 20 32 71 282 029 79 30 42 -5 -4 -6 000 108 16 00 -7.9 -11.0 28.47 22 36 70 281 032 81 39 53 -5 -5 -6 000 109 16 01 -7.4 -10.5 28.48 22 36 66 277 037 80 42 37 -5 -5 -7 000 110 16 02 -7.2 -10.4 28.49 20 31 72 283 035 79 32 33 -4 -4 -5 000 111 16 03 -7.3 -10.1 28.49 18 31 72 283 026 82 30 38 -4 -4 -4 000 112 16 04 -7.1 -10.1 28.48 19 33 77 288 019 80 33 30 -4 -4 -4 000 113 16 05 -6.8 -10.1 28.46 19 33 77 288 016 78 34 32 -3 -3 -3 000 114 16 06 -6.8 -10.0 28.45 20 36 79 290 017 78 41 26 -3 -3 -4 000 115 16 07 -6.4 -9.0 28.44 19 33 76 287 017 83 48 34 -3 -2 -4 000 116 16 08 -6.7 -8.5 28.43 20 32 82 293 017 91 49 42 -4 -3 -3 000 117 16 09 -7.0 -8.3 28.42 18 33 83 294 -001 95 61 54 -5 -4 -4 000 118 16 10 -7.3 -8.7 28.41 17 33 80 291 -004 95 60 63 -5 -5 -5 000 119 16 11 -7.8 -9.6 28.39 20 35 72 283 -005 92 56 49 -6 -5 -5 000 120 16 12 -8.5 -10.5 28.40 20 34 74 285 -006 90 61 46 -7 -6 -5 000 * 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.