USAP Siple Dome (SDM) site lat/lon = (-81.6640,-149.0175) cell lat/lon = (-81.6600,-148.9887) Forecast initialized at 2025-11-09/12 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 09 12 -17.6 -23.1 28.83 4 5 79 290 -001 47 51 68 -13-13-13 000 1 09 13 -18.1 -23.0 28.83 6 7 67 278 000 68 60 84 -13-13-13 000 2 09 14 -18.3 -22.6 28.84 7 8 69 280 000 74 66 92 -12-12-13 000 3 09 15 -17.6 -21.3 28.83 7 9 64 275 000 79 75 94 -12-12-12 000 4 09 16 -16.6 -19.6 28.84 7 10 54 265 000 86 82 97 -12-12-12 000 5 09 17 -15.7 -18.4 28.85 7 10 48 259 000 89 86 98 -12-12-12 000 6 09 18 -14.9 -17.5 28.85 6 9 41 252 000 89 89 98 -11-11-12 000 7 09 19 -14.2 -16.8 28.85 5 7 37 248 000 89 91 98 -11-11-12 000 8 09 20 -13.5 -16.1 28.84 4 5 29 240 000 89 92 96 -10-11-12 000 9 09 21 -12.8 -15.3 28.85 2 3 49 260 001 89 95 97 -10-11-12 000 10 09 22 -11.9 -14.4 28.86 2 2 87 298 005 90 97 98 -11-11-12 000 11 09 23 -10.7 -12.8 28.86 3 3 110 321 004 92 98 97 -11-12-12 000 12 10 00 -10.5 -12.9 28.86 4 4 106 317 -002 90 99 93 -11-12-12 002 13 10 01 -10.6 -12.8 28.86 4 4 92 303 -002 92 99 95 -11-11-12 006 14 10 02 -10.4 -12.4 28.86 3 4 69 280 000 93 98 98 -11-11-12 004 15 10 03 -10.4 -12.2 28.87 3 4 36 247 000 94 99 99 -11-11-12 002 16 10 04 -10.6 -12.0 28.89 3 4 350 201 000 99101100 -11-11-12 002 17 10 05 -11.1 -12.5 28.90 3 4 324 175 000 99102101 -11-12-12 004 18 10 06 -11.5 -12.9 28.90 3 3 305 156 000 100101103 -12-11-12 007 19 10 07 -12.5 -13.8 28.89 3 4 293 144 000 102101103 -12-12-12 008 20 10 08 -13.4 -14.6 28.89 4 4 293 144 -001 104101103 -12-12-12 007 21 10 09 -14.0 -15.3 28.89 4 5 304 155 000 104101104 -12-12-13 007 22 10 10 -14.6 -15.9 28.91 5 6 315 166 000 104101103 -13-13-13 008 23 10 11 -14.8 -16.1 28.91 5 8 318 169 001 105101103 -13-13-13 007 24 10 12 -15.2 -16.6 28.92 6 9 324 175 000 103100101 -14-13-14 006 25 10 13 -16.1 -17.3 28.93 7 11 328 179 000 107 99100 -14-14-14 003 26 10 14 -17.2 -17.7 28.95 8 12 332 183 000 116 97 94 -15-14-14 001 27 10 15 -17.8 -18.1 28.95 9 12 327 178 001 119104 86 -15-15-15 000 28 10 16 -17.3 -17.6 28.95 10 13 324 175 000 118 99 75 -16-16-16 000 29 10 17 -18.4 -18.8 28.96 8 13 330 181 000 119 86 81 -16-16-16 000 30 10 18 -19.1 -19.4 28.98 8 11 322 173 000 120 67102 -17-16-17 000 31 10 19 -19.0 -20.3 29.00 8 12 315 166 000 109 60 95 -17-17-17 000 32 10 20 -18.9 -21.2 29.01 8 12 316 167 000 98 57 59 -17-17-17 000 33 10 21 -19.1 -21.6 29.01 8 12 325 176 001 96 66 72 -17-17-18 000 34 10 22 -19.3 -21.7 29.02 9 14 335 186 000 97 85 75 -17-17-18 000 35 10 23 -19.5 -21.6 29.03 9 13 346 197 000 100108 88 -18-17-18 000 36 11 00 -19.7 -21.5 29.05 10 14 358 209 000 105105 85 -18-17-17 000 37 11 01 -20.5 -22.1 29.06 10 15 3 214 000 107 95 89 -18-17-17 000 38 11 02 -21.4 -22.6 29.07 10 14 3 214 -001 113 88 94 -18-18-18 000 39 11 03 -22.2 -22.8 29.07 9 12 2 213 000 121 91102 -18-19-18 000 40 11 04 -22.5 -23.0 29.07 7 11 4 215 -001 124 93105 -19-19-19 000 41 11 05 -23.1 -23.6 29.07 6 6 18 229 000 125 92102 -19-19-20 000 42 11 06 -24.0 -24.6 29.08 6 6 30 241 000 126 90105 -18-19-20 000 43 11 07 -24.7 -25.4 29.08 6 6 43 254 001 126 91116 -18-19-20 000 44 11 08 -24.8 -25.6 29.08 6 6 55 266 000 126 91123 -18-19-20 000 45 11 09 -24.6 -25.3 29.07 7 7 63 274 000 125 98120 -18-19-20 000 46 11 10 -24.6 -25.3 29.07 8 9 60 271 000 126 97115 -19-19-20 000 47 11 11 -24.4 -25.0 29.06 8 12 59 270 000 126105112 -19-19-20 000 48 11 12 -23.9 -24.5 29.05 9 16 52 263 -002 125118 89 -19-19-20 000 49 11 13 -20.8 -21.9 29.04 10 18 52 263 -002 114122 91 -19-20-21 000 50 11 14 -19.9 -21.4 29.02 10 17 55 266 -001 108122 86 -19-21-21 000 51 11 15 -18.8 -20.5 29.01 11 18 51 262 -001 104122 76 -19-20-21 001 52 11 16 -18.5 -19.9 29.00 13 16 43 254 -001 107122 68 -19-21-21 000 53 11 17 -18.3 -19.7 28.99 13 17 31 242 -002 108122 56 -19-20-21 000 54 11 18 -18.2 -19.7 28.98 14 20 21 232 -002 105123 61 -19-21-21 001 55 11 19 -17.6 -19.4 28.97 14 19 30 241 000 102121 60 -19-20-21 000 56 11 20 -17.2 -19.1 28.95 15 18 36 247 000 100121 58 -18-20-20 000 57 11 21 -16.8 -18.5 28.94 14 16 27 238 001 102121 57 -18-19-19 000 58 11 22 -16.7 -18.3 28.94 12 14 33 244 003 102120 58 -18-19-19 000 59 11 23 -17.1 -18.8 28.93 11 13 44 255 003 102115 57 -18-18-19 000 60 12 00 -16.8 -18.6 28.92 10 12 51 262 003 101113 57 -18-18-19 000 61 12 01 -17.0 -18.9 28.90 9 11 58 269 001 100111 62 -17-18-18 000 62 12 02 -17.1 -18.9 28.89 8 10 63 274 000 100107 66 -17-18-18 000 63 12 03 -17.4 -19.4 28.87 7 9 68 279 000 100104 59 -17-18-18 000 64 12 04 -17.2 -19.5 28.85 6 7 74 285 -001 97101 57 -17-18-18 000 65 12 05 -17.7 -19.7 28.83 5 7 78 289 -001 100 99 62 -17-18-18 000 66 12 06 -18.7 -20.3 28.81 5 7 82 293 001 107 87 66 -17-18-17 000 67 12 07 -20.0 -21.0 28.80 5 7 83 294 000 116 75 67 -17-17-17 000 68 12 08 -21.1 -21.6 28.78 4 6 88 299 000 121 77 79 -18-17-17 000 69 12 09 -22.0 -22.5 28.77 4 6 82 293 001 122 81 80 -18-18-17 000 70 12 10 -21.8 -22.0 28.75 3 5 86 297 000 123 82 76 -18-18-17 000 71 12 11 -22.0 -22.2 28.73 4 5 81 292 000 123 82 79 -18-18-17 000 72 12 12 -22.3 -22.6 28.73 4 5 72 283 000 123 78 82 -18-17-17 000 73 12 13 -22.0 -22.4 28.72 5 5 56 267 000 121 75 82 -18-17-17 000 74 12 14 -22.0 -22.6 28.70 5 6 48 259 000 121 71 85 -17-17-16 000 75 12 15 -21.7 -22.6 28.69 5 7 37 248 001 118 67 87 -17-16-16 000 76 12 16 -21.3 -22.4 28.68 5 7 30 241 001 116 66 87 -17-16-16 000 77 12 17 -20.5 -21.9 28.68 5 7 26 237 000 112 64 87 -17-16-16 000 78 12 18 -19.6 -21.0 28.67 5 7 28 239 001 109 61 85 -17-16-16 000 79 12 19 -18.9 -20.4 28.67 4 6 32 243 000 107 54 81 -16-16-16 000 80 12 20 -18.1 -20.1 28.67 3 5 30 241 000 100 51 77 -16-15-16 000 81 12 21 -17.4 -19.7 28.67 3 4 33 244 001 96 49 72 -15-15-16 000 82 12 22 -16.8 -19.2 28.67 3 5 37 248 001 95 49 69 -15-15-16 000 83 12 23 -16.3 -19.0 28.66 4 5 35 246 001 92 48 68 -15-15-16 000 84 13 00 -16.1 -18.7 28.66 3 4 29 240 000 93 46 66 -15-15-15 000 85 13 01 -16.2 -18.8 28.66 3 4 31 242 000 91 45 63 -14-15-15 000 86 13 02 -16.5 -19.5 28.66 3 4 28 239 001 87 43 58 -14-15-15 000 87 13 03 -16.3 -20.2 28.65 1 3 347 198 000 82 40 52 -14-14-15 000 88 13 04 -16.8 -20.9 28.64 0 2 299 150 001 80 41 46 -14-14-15 000 89 13 05 -17.7 -21.2 28.64 2 4 144 355 000 85 40 46 -15-15-15 000 90 13 06 -18.7 -21.0 28.65 4 5 95 306 -001 97 40 46 -14-15-15 000 91 13 07 -19.3 -21.5 28.65 5 6 58 269 001 97 39 44 -14-14-15 000 92 13 08 -18.7 -21.5 28.64 5 6 36 247 000 90 37 41 -14-14-15 000 93 13 09 -17.5 -21.6 28.63 4 5 2 213 000 80 32 41 -13-14-14 000 94 13 10 -17.4 -22.4 28.64 4 6 339 190 000 72 32 43 -14-14-15 000 95 13 11 -17.2 -22.9 28.64 4 5 334 185 000 68 33 44 -14-14-15 000 96 13 12 -17.2 -23.4 28.65 4 5 320 171 -001 64 34 43 -14-14-15 000 97 13 13 -18.0 -23.5 28.64 5 6 302 154 -001 65 40 47 -14-14-15 000 98 13 14 -18.3 -22.1 28.65 4 6 298 149 000 80 57 56 -14-15-15 000 99 13 15 -17.7 -20.5 28.65 6 8 294 145 000 90 67 51 -14-15-15 000 100 13 16 -17.2 -20.0 28.65 5 8 315 166 000 90 72 52 -14-15-15 000 101 13 17 -16.7 -19.5 28.66 6 10 335 186 000 90 71 62 -14-15-15 000 102 13 18 -16.5 -19.1 28.67 9 12 339 190 000 92 68 60 -14-14-15 000 103 13 19 -16.7 -19.2 28.68 10 13 343 194 000 94 71 64 -15-15-15 000 104 13 20 -16.9 -19.0 28.70 10 13 345 196 000 97 72 77 -15-15-15 000 105 13 21 -17.2 -19.0 28.72 11 15 340 191 000 101 67 72 -15-15-15 000 106 13 22 -17.5 -19.3 28.73 11 16 338 189 000 102 72 75 -15-15-15 000 107 13 23 -17.6 -19.5 28.75 11 16 339 190 000 101 64 78 -15-15-15 000 108 14 00 -17.7 -19.7 28.77 11 15 339 190 -001 100 67 79 -15-15-15 000 109 14 01 -17.9 -19.9 28.78 10 13 344 195 -001 101 68 82 -15-15-15 000 110 14 02 -17.9 -19.7 28.80 9 12 346 197 000 102 60 76 -15-15-15 000 111 14 03 -18.3 -19.9 28.81 8 11 352 203 002 104 56 39 -16-15-16 000 112 14 04 -19.0 -20.0 28.83 7 9 356 207 003 112 51 40 -16-15-16 000 113 14 05 -19.9 -20.4 28.84 6 7 3 214 000 121 47 37 -16-16-16 000 114 14 06 -20.6 -21.1 28.86 5 7 8 219 -001 122 50 60 -15-16-16 000 115 14 07 -20.9 -21.8 28.87 6 9 8 219 -001 119 54 63 -15-15-16 000 116 14 08 -20.7 -22.1 28.89 6 10 5 216 000 111 63 66 -15-15-16 000 117 14 09 -20.9 -22.3 28.90 7 10 358 209 001 110 64 65 -15-15-16 000 118 14 10 -20.8 -22.2 28.91 6 8 352 203 001 109 69 64 -14-15-16 000 119 14 11 -20.4 -21.7 28.93 5 7 342 193 000 108 68 60 -14-15-16 000 120 14 12 -19.7 -20.9 28.94 5 7 326 177 001 108 82 70 -14-16-16 000 * 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.