USAP Siple Dome (SDM) site lat/lon = (-81.6640,-149.0175) cell lat/lon = (-81.6600,-148.9887) Forecast initialized at 2025-11-08/00 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 08 00 -15.7 -19.7 28.72 1 1 296 147 -001 72 50 31 -15-15-14 000 1 08 01 -16.2 -19.7 28.72 2 3 313 164 000 84 53 32 -15-15-15 000 2 08 02 -16.8 -19.8 28.73 3 3 298 149 000 87 54 32 -16-15-15 000 3 08 03 -17.6 -20.6 28.74 2 3 293 144 000 89 50 32 -16-15-15 000 4 08 04 -18.1 -21.1 28.75 2 2 304 156 -001 91 47 31 -16-15-15 000 5 08 05 -18.7 -21.8 28.75 2 4 330 181 000 90 43 32 -16-15-15 000 6 08 06 -19.1 -22.5 28.75 3 4 350 201 000 88 39 32 -16-15-15 000 7 08 07 -20.2 -23.3 28.76 4 6 353 204 000 90 38 33 -15-15-15 000 8 08 08 -20.9 -23.8 28.74 5 7 354 205 000 91 40 35 -15-15-15 000 9 08 09 -21.4 -24.2 28.76 5 7 347 198 000 92 52 37 -15-15-15 000 10 08 10 -21.2 -24.4 28.78 5 7 344 195 000 88 55 37 -15-15-15 000 11 08 11 -20.5 -24.5 28.77 4 6 345 196 000 81 50 34 -15-15-15 000 12 08 12 -19.8 -24.7 28.77 4 5 347 198 -001 75 44 31 -15-15-15 000 13 08 13 -19.7 -25.0 28.77 4 4 355 206 -002 73 45 32 -15-15-15 000 14 08 14 -19.8 -25.1 28.78 4 4 2 213 -001 72 47 37 -15-15-15 000 15 08 15 -19.6 -25.2 28.80 4 4 8 219 001 70 49 41 -15-15-15 000 16 08 16 -19.9 -25.2 28.79 5 5 11 222 000 69 49 40 -15-15-15 000 17 08 17 -19.8 -24.8 28.79 5 6 9 221 001 70 49 38 -15-15-15 000 18 08 18 -19.4 -24.2 28.80 4 5 10 221 000 71 49 33 -14-15-15 000 19 08 19 -18.5 -23.7 28.80 3 3 13 224 000 69 48 29 -14-15-15 000 20 08 20 -17.4 -23.9 28.80 1 1 14 225 -001 63 45 29 -15-15-15 000 21 08 21 -16.6 -23.6 28.81 0 2 96 307 000 60 38 30 -15-14-14 000 22 08 22 -16.5 -22.2 28.81 2 5 151 2 001 61 38 31 -14-14-14 000 23 08 23 -16.6 -21.4 28.80 3 5 133 344 001 67 43 31 -14-14-14 000 24 09 00 -16.6 -21.0 28.80 3 6 115 326 000 71 45 32 -14-14-14 000 25 09 01 -16.7 -21.5 28.81 4 6 103 314 000 66 42 32 -14-14-14 000 26 09 02 -16.8 -22.0 28.81 4 6 88 299 000 62 38 31 -13-13-14 000 27 09 03 -17.2 -22.2 28.81 5 6 77 288 000 66 32 31 -13-13-13 000 28 09 04 -17.6 -22.8 28.81 5 5 69 280 000 68 28 28 -13-13-13 000 29 09 05 -18.1 -23.1 28.80 5 5 64 276 000 68 30 23 -13-13-13 000 30 09 06 -18.4 -23.7 28.81 6 6 62 273 000 66 34 20 -13-13-13 000 31 09 07 -18.5 -24.2 28.82 6 7 56 267 000 63 40 29 -12-12-12 000 32 09 08 -18.5 -24.5 28.81 6 7 54 265 000 60 48 56 -12-12-12 000 33 09 09 -18.4 -24.2 28.81 6 7 52 263 001 62 53 86 -12-12-12 000 34 09 10 -18.5 -23.8 28.81 7 8 51 262 001 65 52 92 -11-11-11 000 35 09 11 -18.3 -22.8 28.81 7 8 48 259 001 71 48 93 -11-11-11 000 36 09 12 -17.9 -21.5 28.82 8 10 43 254 000 79 53 90 -11-10-11 000 37 09 13 -16.9 -19.7 28.82 8 10 37 248 000 88 69 88 -10-10-11 000 38 09 14 -16.2 -18.4 28.83 8 10 34 245 000 95 79 88 -10-10-11 000 39 09 15 -15.8 -17.6 28.82 7 9 34 245 000 99 57 87 -10-10-11 000 40 09 16 -14.9 -16.5 28.83 7 9 28 239 000 101 29 77 -10-10-11 000 41 09 17 -13.9 -15.1 28.83 6 8 22 233 000 104 57 76 -9-10-11 000 42 09 18 -13.2 -14.3 28.84 5 7 16 227 000 105 73 79 -9-10-11 000 43 09 19 -12.1 -13.2 28.84 4 5 13 224 000 104 78 90 -9-10-11 000 44 09 20 -10.8 -12.3 28.84 2 3 356 207 000 98 80 92 -9-10-11 000 45 09 21 -10.3 -12.4 28.84 0 3 277 128 -001 92 80 92 -9-10-11 000 46 09 22 -9.8 -12.1 28.85 2 3 192 43 -002 90 82 93 -9-10-11 000 47 09 23 -9.3 -12.6 28.86 3 3 176 27 001 82 85 97 -9-10-11 000 48 10 00 -9.2 -12.4 28.85 3 3 177 28 -001 83 89 99 -9-10-11 001 49 10 01 -9.3 -11.7 28.85 3 5 183 34 000 88 78 98 -9-10-11 002 50 10 02 -9.5 -12.0 28.85 4 5 185 36 000 88 74 99 -10-10-11 001 51 10 03 -9.8 -12.2 28.86 4 5 186 37 000 88 78101 -10-10-11 000 52 10 04 -10.2 -12.4 28.86 4 4 188 39 -001 91 84101 -10-10-11 001 53 10 05 -10.8 -12.6 28.86 3 5 196 47 000 94 87101 -10-10-11 001 54 10 06 -11.3 -12.9 28.86 3 5 212 63 000 97 91101 -10-10-11 002 55 10 07 -11.7 -13.3 28.86 3 4 227 78 000 98 94102 -10-10-11 003 56 10 08 -12.0 -13.5 28.86 4 5 240 91 -001 98 97103 -11-10-11 004 57 10 09 -12.2 -13.8 28.86 4 5 247 98 000 98 98101 -11-10-11 006 58 10 10 -12.3 -13.9 28.87 4 5 255 106 -001 98 99102 -11-11-11 007 59 10 11 -12.3 -13.8 28.87 3 5 259 110 -001 99100102 -11-11-11 009 60 10 12 -12.5 -14.0 28.88 3 5 263 114 000 100101101 -11-11-12 009 61 10 13 -12.8 -14.1 28.88 3 5 277 128 000 102102101 -11-11-12 007 62 10 14 -12.7 -14.0 28.89 4 6 292 143 000 103102101 -11-12-12 006 63 10 15 -12.5 -13.6 28.90 4 6 305 156 000 104103100 -12-12-12 005 64 10 16 -12.2 -13.6 28.90 5 6 307 158 000 101103101 -12-12-12 005 65 10 17 -12.7 -14.3 28.91 7 8 306 157 000 99104103 -12-12-13 006 66 10 18 -13.2 -14.8 28.92 8 10 311 162 000 99103104 -12-12-13 006 67 10 19 -13.4 -15.0 28.94 9 11 315 166 000 99102105 -12-12-13 005 68 10 20 -13.3 -14.9 28.96 9 12 317 168 001 99101106 -13-12-13 005 69 10 21 -13.5 -15.0 28.97 10 12 321 172 000 100100103 -13-13-13 005 70 10 22 -13.9 -15.3 28.98 10 12 327 178 000 101 94102 -13-13-13 003 71 10 23 -14.7 -16.0 29.00 10 13 330 181 000 104 86 98 -13-13-13 001 72 11 00 -15.5 -16.5 29.01 10 12 331 182 001 107 72 94 -14-13-13 000 73 11 01 -16.1 -16.9 29.03 10 13 325 176 001 110 58 78 -15-14-14 000 74 11 02 -16.4 -17.3 29.04 10 13 322 173 001 111 52 81 -15-15-15 000 75 11 03 -17.3 -17.6 29.05 10 13 328 179 001 118 49 84 -16-15-15 000 76 11 04 -17.7 -18.0 29.06 9 12 325 176 002 119 59 85 -17-15-15 000 77 11 05 -17.8 -18.1 29.07 8 12 326 177 001 119 59 87 -17-15-15 000 78 11 06 -18.0 -18.3 29.09 8 12 337 188 001 119 68 91 -17-16-16 000 79 11 07 -18.4 -18.7 29.10 8 12 349 200 001 119 70 89 -17-16-16 000 80 11 08 -19.1 -19.5 29.11 6 9 0 211 000 120 73 93 -17-16-16 000 81 11 09 -19.9 -20.4 29.12 5 7 14 225 000 121 76 98 -17-16-17 000 82 11 10 -20.4 -21.0 29.12 6 8 19 230 000 121 74100 -16-16-17 000 83 11 11 -20.9 -21.5 29.12 6 8 18 229 000 121 76103 -16-16-17 000 84 11 12 -20.8 -21.5 29.13 6 8 22 233 000 121 76102 -16-16-17 000 85 11 13 -20.5 -21.2 29.12 6 8 29 240 -001 121 78101 -16-16-17 000 86 11 14 -20.1 -20.7 29.12 6 8 43 254 000 121 79 99 -16-16-17 000 87 11 15 -19.4 -19.9 29.11 6 9 55 266 001 120 81100 -16-16-17 000 88 11 16 -18.3 -18.8 29.11 6 11 63 274 000 119 87101 -16-16-17 000 89 11 17 -17.3 -18.5 29.10 5 10 79 290 000 109 95102 -16-16-17 001 90 11 18 -17.1 -18.4 29.09 7 11 94 305 000 107 95104 -16-16-17 000 91 11 19 -16.3 -18.1 29.08 9 14 105 316 000 100105102 -16-16-16 001 92 11 20 -15.4 -17.3 29.06 11 16 112 323 000 99102103 -16-16-16 002 93 11 21 -14.9 -16.9 29.05 12 15 115 326 000 97 99101 -16-16-16 006 94 11 22 -15.0 -16.9 29.05 12 15 122 333 000 98 99102 -16-16-16 010 95 11 23 -15.3 -17.1 29.03 10 13 129 340 000 99 99105 -16-16-16 007 96 12 00 -15.6 -17.3 29.01 9 13 137 348 000 101 99103 -16-16-16 004 97 12 01 -16.2 -17.8 28.99 9 12 140 351 000 103 99 99 -17-16-16 002 98 12 02 -16.7 -18.1 28.97 8 11 138 349 000 105 99100 -17-16-16 000 99 12 03 -17.2 -18.3 28.95 8 10 137 348 001 109 99100 -17-16-16 000 100 12 04 -18.0 -18.7 28.93 7 10 134 345 000 116 95 98 -16-16-16 000 101 12 05 -18.6 -19.0 28.91 6 9 124 335 000 119 92 95 -15-16-16 000 102 12 06 -19.5 -19.9 28.89 6 7 117 328 002 120 86 82 -15-16-16 000 103 12 07 -21.2 -22.1 28.87 4 7 113 324 002 122 83 68 -15-15-16 000 104 12 08 -21.4 -21.9 28.85 4 7 112 323 001 121 82 83 -15-15-16 000 105 12 09 -20.6 -20.8 28.84 4 7 121 332 000 121 84 84 -15-15-16 000 106 12 10 -20.5 -20.6 28.82 3 7 139 350 000 121 86 81 -15-15-16 000 107 12 11 -20.5 -20.6 28.80 2 6 164 15 001 121 87 83 -15-15-15 000 108 12 12 -20.3 -20.4 28.78 2 5 165 16 001 120 90 87 -15-15-16 000 109 12 13 -20.3 -20.3 28.76 1 5 201 52 001 120 91 90 -15-15-16 000 110 12 14 -20.0 -20.1 28.75 2 4 253 104 000 120 91 90 -15-15-16 000 111 12 15 -19.4 -19.5 28.73 3 4 292 143 004 120 95 89 -15-16-16 000 112 12 16 -19.1 -19.5 28.71 4 6 303 154 001 119102 85 -15-16-16 000 113 12 17 -18.7 -19.5 28.70 5 8 298 149 000 119105 81 -16-16-16 000 114 12 18 -18.2 -18.6 28.70 5 9 307 158 002 119104 80 -16-16-16 000 115 12 19 -17.4 -18.5 28.69 5 10 314 165 002 109106 80 -15-16-16 000 116 12 20 -17.1 -18.5 28.69 6 9 325 176 002 106103 79 -16-16-16 000 117 12 21 -17.1 -18.3 28.69 7 9 339 190 002 108 95 77 -16-16-16 000 118 12 22 -17.4 -18.3 28.69 7 9 351 202 001 111 86 80 -15-15-15 000 119 12 23 -17.2 -18.5 28.68 6 9 350 201 000 106 58 80 -15-15-15 000 120 13 00 -16.9 -18.8 28.68 6 9 354 205 000 100 58 81 -15-15-15 000 * 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.