USAP Siple Dome (SDM) site lat/lon = (-81.6640,-149.0175) cell lat/lon = (-81.6600,-148.9887) Forecast initialized at 2025-11-08/12 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 08 12 -23.0 -27.4 28.76 3 4 12 223 -001 59 48 35 -17-16-16 000 1 08 13 -22.8 -26.3 28.75 6 7 5 216 000 85 49 39 -16-16-15 000 2 08 14 -22.7 -26.1 28.76 6 7 10 221 000 87 48 45 -16-15-15 000 3 08 15 -22.1 -25.8 28.78 6 8 15 226 000 83 50 50 -15-15-15 000 4 08 16 -21.5 -25.5 28.77 6 7 11 222 000 81 53 54 -15-15-16 000 5 08 17 -20.9 -25.0 28.78 5 6 13 224 000 78 55 54 -15-15-16 000 6 08 18 -20.0 -24.6 28.79 4 5 13 225 000 75 57 50 -15-16-16 000 7 08 19 -19.2 -24.1 28.79 4 4 19 230 000 70 56 46 -16-15-15 000 8 08 20 -18.6 -23.5 28.77 3 3 23 234 000 68 53 43 -16-15-15 000 9 08 21 -18.0 -23.1 28.78 3 3 31 242 001 66 50 38 -15-15-15 000 10 08 22 -17.4 -22.9 28.80 2 3 42 253 001 63 47 35 -15-14-15 000 11 08 23 -16.8 -23.4 28.80 1 2 50 261 002 60 44 34 -15-14-15 000 12 09 00 -16.2 -22.3 28.79 1 3 68 279 003 61 42 34 -14-14-15 000 13 09 01 -16.1 -21.9 28.80 2 3 65 276 001 67 41 34 -14-14-15 000 14 09 02 -16.7 -22.5 28.81 3 3 62 273 -001 62 40 36 -14-14-15 000 15 09 03 -17.2 -23.3 28.82 3 4 57 268 -001 61 39 37 -14-14-14 000 16 09 04 -17.3 -24.1 28.82 3 3 57 268 -001 61 38 37 -14-14-14 000 17 09 05 -17.6 -24.2 28.82 3 3 58 269 000 63 36 35 -14-14-14 000 18 09 06 -17.7 -25.1 28.83 2 2 70 281 000 59 34 34 -14-14-14 000 19 09 07 -18.0 -25.6 28.83 2 3 91 302 001 57 32 32 -14-13-14 000 20 09 08 -18.4 -25.5 28.84 4 5 94 305 002 60 32 37 -14-13-14 000 21 09 09 -19.3 -24.9 28.83 5 5 79 290 001 69 36 47 -13-13-13 000 22 09 10 -19.1 -24.8 28.83 5 5 62 273 001 67 40 60 -13-13-13 000 23 09 11 -19.1 -24.6 28.83 5 6 55 266 000 67 45 73 -13-13-13 000 24 09 12 -19.3 -24.1 28.84 6 7 51 262 000 71 51 81 -13-13-13 000 25 09 13 -19.0 -23.2 28.84 6 7 47 258 000 75 57 85 -12-12-13 000 26 09 14 -18.5 -22.3 28.86 6 7 43 254 000 80 60 84 -12-12-12 000 27 09 15 -17.9 -21.3 28.86 6 8 42 253 001 83 61 81 -12-12-12 000 28 09 16 -17.1 -20.1 28.86 6 8 41 252 001 86 58 88 -12-12-12 000 29 09 17 -16.4 -19.2 28.86 6 7 38 249 000 88 54 81 -11-11-12 000 30 09 18 -15.5 -18.2 28.87 5 7 32 243 001 88 61 79 -11-11-12 000 31 09 19 -14.4 -17.2 28.87 5 6 29 240 002 86 71 78 -11-11-11 000 32 09 20 -13.5 -16.4 28.88 4 5 30 241 001 83 78 80 -10-11-11 000 33 09 21 -12.5 -15.9 28.88 2 3 27 238 000 82 80 85 -10-11-12 000 34 09 22 -11.7 -15.2 28.89 1 2 12 223 -001 82 79 88 -10-11-11 000 35 09 23 -10.9 -14.3 28.89 0 1 10 221 -001 83 80 92 -10-11-11 000 36 10 00 -10.4 -14.9 28.90 0 0 134 345 000 74 84 95 -10-11-12 000 37 10 01 -10.1 -14.4 28.91 1 1 124 335 000 76 87 97 -10-11-12 000 38 10 02 -10.0 -13.4 28.91 1 1 79 290 -001 82 91 99 -10-11-12 002 39 10 03 -10.0 -12.6 28.91 1 1 37 248 -001 88 95100 -10-11-12 004 40 10 04 -10.1 -12.1 28.91 1 1 30 241 000 93 98101 -10-11-12 005 41 10 05 -10.4 -12.0 28.91 1 1 12 223 000 96101101 -10-11-12 006 42 10 06 -10.8 -12.1 28.92 1 2 344 195 000 100102100 -10-11-12 006 43 10 07 -12.0 -12.9 28.92 3 3 323 174 000 105103 99 -11-11-12 005 44 10 08 -12.9 -13.6 28.93 4 4 320 171 000 109102 98 -11-11-12 004 45 10 09 -13.2 -13.9 28.93 4 5 318 169 000 110102100 -11-11-12 003 46 10 10 -13.2 -14.1 28.94 4 5 316 167 000 107101101 -11-12-12 004 47 10 11 -13.1 -14.2 28.94 4 5 321 172 000 106101103 -11-12-13 005 48 10 12 -13.2 -14.3 28.95 5 7 328 179 000 106102103 -11-12-13 007 49 10 13 -13.7 -14.9 28.95 5 7 335 186 -001 104103103 -12-12-13 008 50 10 14 -14.2 -15.6 28.95 6 7 339 190 000 102104102 -12-12-13 008 51 10 15 -14.9 -16.5 28.96 7 9 337 188 000 100100103 -12-12-13 007 52 10 16 -15.2 -16.8 28.98 8 10 336 187 000 101 98106 -12-12-13 005 53 10 17 -15.4 -17.1 28.98 8 11 336 187 000 101 92106 -13-13-13 004 54 10 18 -16.0 -17.6 28.99 9 12 334 185 001 102 75105 -14-13-14 002 55 10 19 -15.9 -17.9 28.99 8 11 334 185 001 99 74102 -15-14-14 001 56 10 20 -16.0 -18.1 29.00 8 11 333 184 001 97 71104 -16-15-15 002 57 10 21 -16.5 -18.2 29.01 8 12 334 185 001 101 68108 -16-15-15 000 58 10 22 -17.4 -18.7 29.03 9 11 341 192 001 106 71113 -16-16-16 000 59 10 23 -17.7 -19.1 29.04 9 11 342 193 003 107 55102 -16-16-17 000 60 11 00 -18.4 -20.0 29.05 8 11 345 196 002 105 67 53 -17-16-17 000 61 11 01 -18.8 -20.8 29.05 9 12 350 201 000 102 83 54 -17-17-17 000 62 11 02 -19.3 -21.6 29.07 9 12 354 205 000 98 87 68 -18-17-17 000 63 11 03 -20.0 -21.9 29.08 9 13 4 215 000 104 95 79 -18-17-18 000 64 11 04 -20.8 -22.0 29.08 10 13 7 218 -001 112 88 77 -19-18-17 000 65 11 05 -20.8 -22.2 29.08 10 13 11 222 000 109 98 87 -19-19-18 000 66 11 06 -21.0 -22.7 29.09 10 15 15 226 001 107 91 81 -20-19-18 000 67 11 07 -20.4 -20.8 29.09 12 17 10 221 003 122103 80 -19-19-19 000 68 11 08 -19.9 -20.3 29.10 12 19 10 221 004 121110 91 -20-19-19 000 69 11 09 -19.2 -19.6 29.10 11 17 15 226 003 120121 95 -19-20-19 000 70 11 10 -19.3 -20.0 29.10 10 16 27 238 002 117121 96 -18-20-19 000 71 11 11 -21.7 -22.2 29.10 9 15 42 253 002 123119101 -18-19-19 000 72 11 12 -21.1 -21.6 29.11 9 16 47 258 002 122109100 -18-18-19 000 73 11 13 -19.5 -19.9 29.11 12 15 32 243 003 121111 97 -20-18-19 000 74 11 14 -18.9 -19.3 29.10 12 16 31 242 002 120123 88 -20-21-19 000 75 11 15 -18.6 -19.6 29.09 13 17 31 242 001 111122 81 -20-21-21 001 76 11 16 -18.7 -20.1 29.08 13 16 26 237 002 108123 75 -20-21-22 001 77 11 17 -18.6 -20.1 29.08 13 16 25 236 003 106122 74 -19-21-21 001 78 11 18 -18.4 -19.9 29.07 11 16 27 238 000 105122 72 -19-20-21 000 79 11 19 -18.8 -19.9 29.07 9 15 44 255 000 112104 74 -19-19-20 000 80 11 20 -18.1 -19.4 29.06 10 15 57 268 000 108110 72 -18-19-20 000 81 11 21 -17.4 -18.9 29.05 11 16 64 275 000 105104 71 -17-18-20 000 82 11 22 -17.0 -18.9 29.04 11 17 65 276 000 100104 68 -17-18-19 000 83 11 23 -16.7 -18.7 29.03 12 18 68 279 000 99105 55 -17-18-19 000 84 12 00 -16.3 -18.8 29.01 12 18 70 281 000 93 98 54 -17-18-19 000 85 12 01 -16.6 -18.9 28.99 11 16 74 285 000 96 96 46 -17-18-19 000 86 12 02 -17.1 -19.2 28.97 10 16 78 289 000 99 95 40 -16-18-19 000 87 12 03 -17.3 -19.5 28.95 10 16 83 294 000 98 93 35 -17-18-18 000 88 12 04 -18.1 -19.6 28.93 9 14 89 300 000 106 89 35 -17-17-17 000 89 12 05 -18.2 -19.8 28.92 8 14 91 302 001 106 80 34 -17-17-17 000 90 12 06 -19.4 -20.7 28.89 6 12 93 304 000 110 72 31 -17-16-16 000 91 12 07 -19.7 -20.7 28.87 6 13 96 307 000 115 65 30 -16-16-16 000 92 12 08 -18.9 -20.0 28.85 6 12 92 303 000 112 65 34 -15-15-15 000 93 12 09 -17.7 -19.6 28.83 5 10 88 299 001 101 58 39 -15-15-15 000 94 12 10 -17.4 -19.6 28.81 5 9 73 284 000 97 52 41 -15-14-14 000 95 12 11 -17.4 -19.7 28.80 5 8 53 264 000 96 48 61 -15-14-14 000 96 12 12 -17.7 -20.1 28.78 6 8 41 252 000 96 47 86 -14-14-14 000 97 12 13 -18.6 -20.8 28.77 6 8 34 245 000 98 49 93 -14-14-14 000 98 12 14 -18.9 -21.2 28.75 6 7 28 239 000 97 60 96 -14-14-15 000 99 12 15 -18.9 -21.2 28.74 6 8 23 234 000 97 71 94 -14-14-15 000 100 12 16 -18.2 -20.6 28.72 6 8 23 234 001 95 77 92 -14-14-15 000 101 12 17 -17.5 -19.9 28.71 5 7 19 230 000 95 87 92 -14-14-15 000 102 12 18 -16.6 -19.1 28.70 5 6 19 230 000 93 89 91 -14-14-15 000 103 12 19 -15.5 -18.1 28.69 4 6 23 234 000 92 84 90 -14-14-15 000 104 12 20 -14.4 -17.3 28.69 5 6 21 232 000 89 83 88 -14-14-15 000 105 12 21 -14.4 -17.2 28.68 6 7 18 229 000 90 84 88 -14-14-15 000 106 12 22 -14.2 -17.2 28.68 6 8 21 232 000 87 85 89 -14-14-15 000 107 12 23 -14.2 -17.0 28.68 6 7 20 231 000 89 84 89 -14-14-15 000 108 13 00 -14.0 -16.5 28.67 5 7 17 228 000 91 81 89 -13-14-14 000 109 13 01 -13.6 -15.8 28.66 5 6 14 225 000 95 81 92 -13-14-14 000 110 13 02 -13.9 -15.8 28.65 5 5 16 227 000 97 86 92 -13-14-14 000 111 13 03 -14.8 -16.4 28.65 5 6 30 241 000 101 84 93 -13-13-14 000 112 13 04 -15.5 -16.9 28.64 6 7 33 244 000 105 85 93 -13-14-14 000 113 13 05 -15.9 -17.1 28.64 6 8 34 245 000 107 92 91 -13-14-14 000 114 13 06 -15.2 -16.7 28.65 5 8 34 245 001 103102 94 -13-14-14 000 115 13 07 -14.6 -16.2 28.65 5 8 39 250 000 101101 98 -13-13-14 001 116 13 08 -14.6 -16.0 28.65 5 8 47 258 000 104 99 99 -13-13-14 002 117 13 09 -14.8 -16.0 28.66 6 8 59 270 -001 107100101 -13-13-14 003 118 13 10 -14.8 -15.6 28.66 6 9 71 282 000 110102103 -12-13-14 003 119 13 11 -14.3 -15.3 28.66 6 11 74 285 -001 107103104 -12-13-14 007 120 13 12 -13.8 -15.0 28.66 7 14 70 281 -001 104104106 -12-13-14 010 * 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.