USAP Siple Dome (SDM) site lat/lon = (-81.6640,-149.0175) cell lat/lon = (-81.6600,-148.9887) Forecast initialized at 2025-11-12/12 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 -19.7 -23.1 28.60 6 8 126 337 000 81 56 28 -17-16-16 000 1 12 13 -22.5 -24.2 28.58 6 8 128 339 -001 108 50 28 -16-15-15 000 2 12 14 -22.2 -23.8 28.58 6 9 129 340 -001 109 48 30 -15-15-15 000 3 12 15 -21.2 -23.1 28.56 6 9 120 331 000 104 49 33 -15-15-16 000 4 12 16 -20.2 -22.2 28.53 6 9 118 329 001 102 48 38 -15-15-16 000 5 12 17 -19.7 -21.7 28.52 5 9 106 317 000 102 45 48 -15-15-15 000 6 12 18 -18.7 -21.2 28.52 5 8 83 294 000 95 44 60 -15-15-15 000 7 12 19 -17.8 -21.1 28.49 4 7 59 270 000 83 45 74 -15-15-15 000 8 12 20 -16.9 -20.8 28.49 3 4 47 258 000 77 45 85 -15-15-15 000 9 12 21 -16.4 -20.8 28.47 2 3 23 234 000 75 46 93 -15-15-15 000 10 12 22 -16.0 -20.5 28.47 1 2 2 213 001 77 47 92 -15-15-15 000 11 12 23 -15.8 -19.8 28.46 1 3 230 81 000 81 47 87 -15-15-15 000 12 13 00 -15.9 -19.1 28.44 1 3 205 56 000 85 50 83 -15-15-15 000 13 13 01 -16.3 -19.4 28.42 2 3 194 45 000 84 53 80 -15-15-15 000 14 13 02 -16.6 -20.2 28.42 1 3 121 332 000 84 54 74 -14-15-15 000 15 13 03 -16.9 -21.2 28.42 2 5 22 233 000 79 52 75 -14-15-15 000 16 13 04 -17.9 -22.3 28.42 4 6 5 216 000 74 52 75 -15-15-15 000 17 13 05 -18.8 -22.2 28.42 5 7 352 203 000 84 55 74 -15-15-15 000 18 13 06 -19.4 -22.5 28.40 5 7 338 189 002 88 56 74 -14-15-16 000 19 13 07 -19.8 -23.2 28.39 5 6 333 184 -001 86 58 72 -14-15-16 000 20 13 08 -19.8 -23.8 28.38 5 5 341 192 000 81 59 72 -15-15-16 000 21 13 09 -19.7 -24.1 28.38 5 6 354 205 002 78 61 72 -15-15-15 000 22 13 10 -20.7 -24.6 28.38 6 7 4 215 000 81 64 75 -15-15-16 000 23 13 11 -21.5 -24.6 28.37 7 9 3 214 000 88 68 75 -15-15-16 000 24 13 12 -21.8 -24.3 28.38 7 9 359 210 001 95 68 74 -15-15-15 000 25 13 13 -21.6 -24.1 28.39 6 9 8 219 001 96 62 75 -15-15-15 000 26 13 14 -21.2 -23.9 28.39 6 8 10 221 002 94 58 75 -15-15-15 000 27 13 15 -20.2 -23.4 28.40 4 6 10 221 002 89 57 77 -15-15-15 000 28 13 16 -19.3 -23.1 28.40 4 5 26 237 001 82 57 76 -15-15-16 000 29 13 17 -18.2 -22.8 28.40 3 3 44 255 000 74 60 72 -15-15-15 000 30 13 18 -17.6 -21.9 28.42 4 5 67 278 -002 71 61 69 -15-15-16 000 31 13 19 -16.5 -21.0 28.44 4 6 76 287 000 74 65 78 -15-15-15 000 32 13 20 -15.9 -19.8 28.44 3 6 86 297 -001 80 71 89 -15-14-15 000 33 13 21 -15.3 -19.1 28.45 1 4 106 317 002 82 72 94 -14-14-15 000 34 13 22 -15.0 -18.5 28.47 2 3 165 16 000 84 74 96 -14-14-15 000 35 13 23 -14.9 -19.1 28.48 3 5 167 18 000 78 80105 -14-14-15 000 36 14 00 -14.9 -19.0 28.50 4 6 178 29 000 79 88110 -14-14-15 000 37 14 01 -15.5 -18.6 28.51 5 5 184 35 -001 88 92114 -15-14-15 000 38 14 02 -15.6 -18.7 28.53 4 5 180 31 -001 88 95118 -15-14-15 000 39 14 03 -15.6 -19.4 28.54 4 5 178 29 000 82 95115 -15-14-15 000 40 14 04 -15.7 -19.4 28.55 3 3 174 25 -001 84 96110 -15-14-15 000 41 14 05 -15.8 -19.4 28.56 2 3 177 28 -001 84 97 91 -15-14-15 000 42 14 06 -16.7 -20.0 28.58 2 2 242 93 000 87 99 68 -14-14-15 000 43 14 07 -17.0 -20.2 28.60 0 1 268 119 -002 88 96 60 -15-15-15 000 44 14 08 -17.0 -20.0 28.62 2 2 329 180 -002 90 84 56 -16-16-16 000 45 14 09 -18.9 -20.0 28.64 4 6 343 194 000 109 75 60 -16-16-16 000 46 14 10 -18.3 -19.2 28.65 5 7 348 199 000 113 77 62 -16-16-16 000 47 14 11 -20.0 -20.6 28.67 7 11 317 168 000 119 81 67 -15-15-16 000 48 14 12 -18.3 -19.3 28.69 6 9 313 164 000 112 90 69 -15-15-16 000 49 14 13 -18.8 -19.6 28.71 6 8 341 192 -001 114 86 71 -15-16-17 000 50 14 14 -17.7 -20.0 28.73 7 8 345 196 000 97 83 76 -15-16-17 000 51 14 15 -18.0 -20.4 28.76 8 9 354 205 -001 96 78 82 -15-15-17 000 52 14 16 -18.8 -20.8 28.78 8 10 5 216 -001 101 78 92 -16-16-16 000 53 14 17 -19.6 -21.0 28.80 8 10 18 229 000 109 60106 -16-15-16 000 54 14 18 -19.5 -20.8 28.81 9 13 28 239 000 109 97103 -16-16-16 000 55 14 19 -18.7 -20.6 28.83 9 12 36 247 002 102 98105 -16-16-16 000 56 14 20 -17.8 -19.8 28.85 9 11 40 251 001 99 96100 -16-15-16 000 57 14 21 -17.1 -19.3 28.87 8 11 42 253 000 97 95 99 -15-15-16 000 58 14 22 -16.5 -18.6 28.88 7 10 48 259 -002 98 97 97 -15-15-16 000 59 14 23 -16.0 -18.0 28.89 7 10 57 269 -001 99 98 95 -15-15-16 000 60 15 00 -15.5 -17.5 28.90 7 10 58 269 000 98 90 94 -15-15-15 000 61 15 01 -15.2 -17.3 28.91 7 10 69 280 001 96 86 91 -14-14-15 000 62 15 02 -15.3 -17.7 28.92 7 11 67 278 001 93 84 89 -14-14-15 000 63 15 03 -15.8 -18.0 28.93 7 12 71 282 002 95 85 88 -14-14-15 000 64 15 04 -16.6 -18.6 28.94 6 12 86 297 001 98 83 87 -14-14-15 000 65 15 05 -17.4 -19.0 28.94 7 12 95 306 000 104 82 87 -14-14-15 000 66 15 06 -18.0 -19.4 28.94 7 11 99 310 000 107 78 84 -13-14-14 000 67 15 07 -18.5 -19.6 28.95 7 12 109 320 000 110 75 78 -13-14-14 000 68 15 08 -18.8 -19.6 28.95 8 14 110 321 000 116 73 78 -13-13-14 000 69 15 09 -19.2 -19.9 28.95 8 14 110 321 001 116 71 83 -13-13-14 000 70 15 10 -19.4 -20.3 28.95 8 15 110 321 001 115 78 86 -13-13-14 000 71 15 11 -19.5 -20.3 28.95 8 14 101 312 001 115 92 82 -13-13-14 000 72 15 12 -19.2 -19.7 28.95 8 15 81 292 002 119 89 82 -13-13-14 000 73 15 13 -19.3 -19.8 28.96 8 15 58 269 000 120 98 63 -14-14-14 000 74 15 14 -19.2 -19.7 28.96 9 15 50 261 000 120 99 50 -14-14-15 000 75 15 15 -18.7 -19.2 28.96 9 15 46 257 -002 119 98 51 -14-14-15 000 76 15 16 -17.9 -18.3 28.96 9 15 42 253 000 118 85 65 -14-14-14 000 77 15 17 -16.9 -17.8 28.97 9 14 39 250 -001 111 79 58 -13-14-13 000 78 15 18 -16.1 -17.6 28.97 7 13 36 247 -005 103 85 58 -13-13-13 000 79 15 19 -15.3 -17.3 28.97 6 11 35 246 -003 97 85 60 -13-13-13 000 80 15 20 -14.7 -16.9 28.98 4 9 43 254 000 94 85 65 -13-13-13 000 81 15 21 -14.0 -16.4 28.98 3 6 42 253 000 93 82 69 -13-13-13 000 82 15 22 -13.5 -15.9 28.97 2 4 54 265 000 92 84 71 -13-13-13 000 83 15 23 -13.2 -15.6 28.97 2 4 76 287 000 92 86 71 -13-13-14 000 84 16 00 -13.1 -15.4 28.97 1 3 62 273 001 92 86 73 -13-14-15 000 85 16 01 -13.5 -15.6 28.96 3 4 58 269 -001 93 88 70 -13-14-15 000 86 16 02 -14.2 -16.0 28.96 4 6 49 260 000 98 88 68 -13-14-15 000 87 16 03 -14.9 -16.4 28.96 5 7 46 257 001 103 89 69 -13-14-15 000 88 16 04 -15.7 -17.3 28.95 6 8 40 251 000 103 87 69 -14-14-15 000 89 16 05 -16.9 -18.3 28.95 6 8 39 250 000 105 81 74 -14-14-14 000 90 16 06 -17.9 -19.1 28.94 6 9 41 252 001 109 70 75 -14-14-14 000 91 16 07 -18.7 -19.9 28.94 7 9 53 264 001 109 75 71 -14-15-15 000 92 16 08 -19.1 -20.5 28.93 7 11 59 270 000 107 75 73 -14-15-15 000 93 16 09 -19.0 -20.6 28.93 8 12 58 269 -002 105 72 68 -14-15-15 000 94 16 10 -19.5 -21.1 28.92 8 11 62 273 000 105 73 69 -14-15-15 000 95 16 11 -19.6 -21.2 28.92 7 10 65 276 000 104 73 73 -14-15-15 000 96 16 12 -19.3 -21.1 28.92 6 8 70 281 000 101 70 76 -14-15-15 000 97 16 13 -18.8 -21.1 28.91 6 6 72 283 000 95 67 74 -14-15-16 000 98 16 14 -18.2 -20.9 28.91 5 5 70 281 000 92 67 67 -14-15-16 000 99 16 15 -17.6 -20.5 28.90 4 4 76 287 000 91 73 65 -14-15-16 000 100 16 16 -17.7 -20.4 28.89 4 5 93 304 000 91 70 63 -14-15-15 000 101 16 17 -16.7 -20.0 28.88 3 3 95 306 000 85 72 60 -14-15-16 000 102 16 18 -15.8 -19.8 28.88 2 2 80 291 000 81 76 56 -14-15-15 000 103 16 19 -15.3 -19.5 28.88 1 1 43 254 000 79 77 56 -14-15-16 000 104 16 20 -15.0 -18.6 28.88 2 2 354 205 002 78 77 57 -14-15-16 000 105 16 21 -14.4 -18.3 28.88 2 4 336 187 000 78 77 58 -14-15-16 000 106 16 22 -14.2 -17.7 28.87 3 3 338 189 -001 84 80 56 -14-15-15 000 107 16 23 -14.1 -17.6 28.88 3 3 340 191 000 83 77 53 -14-15-15 000 108 17 00 -14.1 -17.1 28.88 3 3 346 197 000 88 69 54 -14-15-15 000 109 17 01 -14.4 -16.8 28.88 2 3 358 209 000 91 66 54 -14-15-15 000 110 17 02 -14.9 -17.3 28.88 2 2 8 219 000 92 65 59 -14-15-15 000 111 17 03 -15.1 -17.7 28.88 2 2 29 240 000 92 65 60 -14-14-15 000 112 17 04 -15.5 -18.4 28.88 2 2 62 273 000 89 68 59 -14-14-15 000 113 17 05 -15.9 -19.3 28.88 2 3 92 303 000 85 76 60 -14-14-15 000 114 17 06 -16.5 -19.9 28.89 3 5 111 322 000 86 86 61 -14-14-14 000 115 17 07 -17.6 -20.6 28.89 4 7 119 330 000 89 84 55 -14-14-14 000 116 17 08 -18.6 -20.9 28.89 5 8 125 336 000 95 69 50 -14-13-14 000 117 17 09 -19.5 -21.1 28.89 7 11 130 341 000 103 59 46 -13-13-14 000 118 17 10 -19.8 -21.3 28.89 7 11 126 337 000 105 53 54 -13-13-14 000 119 17 11 -19.8 -20.9 28.89 7 12 128 339 000 110 58 52 -13-13-13 000 120 17 12 -19.9 -20.4 28.89 7 12 127 338 000 119 58 45 -13-13-13 000 * 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.