USAP Siple Dome (SDM) site lat/lon = (-81.6640,-149.0175) cell lat/lon = (-81.6600,-148.9887) Forecast initialized at 2025-11-10/12 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 10 12 -15.0 -16.8 28.89 6 8 310 161 -001 97 97 97 -14-14-14 000 1 10 13 -16.1 -17.6 28.91 7 11 315 166 001 103101100 -15-15-15 005 2 10 14 -17.6 -18.6 28.90 8 11 319 170 -001 111100 97 -16-16-15 002 3 10 15 -19.4 -19.8 28.92 8 13 326 177 000 120 92 91 -16-16-16 000 4 10 16 -20.1 -20.5 28.92 8 15 329 180 000 121 70 74 -17-16-16 000 5 10 17 -20.3 -22.4 28.93 9 15 328 179 000 102 51 51 -17-17-17 000 6 10 18 -20.6 -23.6 28.96 9 15 329 180 000 92 56 41 -17-17-17 000 7 10 19 -20.6 -23.3 28.96 11 16 332 183 000 95 71 47 -18-17-17 000 8 10 20 -20.5 -23.0 28.98 11 15 340 191 000 98 81 60 -18-17-17 000 9 10 21 -20.7 -22.7 28.96 11 16 347 198 000 103 90 71 -18-17-18 000 10 10 22 -20.8 -22.5 28.97 11 16 354 205 000 106 99 79 -19-18-18 000 11 10 23 -20.9 -22.4 29.00 11 15 0 211 -002 109 97 83 -19-18-18 000 12 11 00 -21.1 -22.3 29.01 11 15 5 216 -003 113 78 85 -20-18-18 000 13 11 01 -21.6 -22.2 29.00 12 14 10 221 -005 120 70 83 -20-18-18 000 14 11 02 -22.3 -23.4 29.00 11 14 18 229 -003 116 68 80 -20-19-18 000 15 11 03 -23.1 -24.5 29.02 11 14 20 231 -002 114 72 73 -20-19-19 000 16 11 04 -23.8 -24.5 29.03 11 14 25 236 -001 122 74 72 -20-19-19 000 17 11 05 -23.9 -24.4 29.04 11 14 25 236 001 126 76 74 -20-19-19 000 18 11 06 -24.1 -24.5 29.03 10 12 27 238 002 126 79 80 -20-19-19 000 19 11 07 -25.2 -25.7 29.02 9 12 28 239 005 127 78 84 -21-20-20 000 20 11 08 -26.3 -26.9 29.02 9 13 28 239 005 129 95 87 -21-20-20 000 21 11 09 -25.6 -26.2 29.03 8 13 27 238 005 128 92 92 -21-21-20 000 22 11 10 -25.5 -26.1 29.03 10 15 29 240 003 127111 94 -21-21-20 000 23 11 11 -24.3 -24.9 29.02 9 17 26 237 002 126115 97 -21-22-20 000 24 11 12 -25.3 -25.9 29.02 9 15 32 243 002 127117 94 -21-21-21 000 25 11 13 -24.8 -25.4 29.02 9 16 39 251 002 126116 88 -20-21-21 000 26 11 14 -24.2 -24.7 29.01 9 16 49 260 003 126110 82 -20-20-21 000 27 11 15 -23.4 -24.0 29.01 9 17 60 271 003 125105 81 -20-20-21 000 28 11 16 -22.8 -23.4 28.98 9 17 65 276 002 123113 82 -19-20-21 000 29 11 17 -21.0 -21.6 28.96 11 19 68 279 001 120117 81 -19-20-20 000 30 11 18 -19.8 -20.4 28.96 12 15 60 271 000 117122 77 -19-20-20 000 31 11 19 -20.3 -20.6 28.95 11 15 49 260 000 122119 74 -19-20-20 000 32 11 20 -20.2 -20.6 28.94 10 14 46 257 001 121107 74 -19-20-20 000 33 11 21 -19.7 -20.5 28.92 10 14 45 257 001 116 95 80 -19-19-20 000 34 11 22 -18.9 -20.3 28.91 9 13 47 258 002 108108 85 -19-19-20 000 35 11 23 -18.4 -20.0 28.90 8 11 60 271 002 105106 86 -18-19-20 000 36 12 00 -18.2 -20.2 28.89 8 11 82 293 000 101 98 85 -18-19-20 000 37 12 01 -18.3 -20.4 28.88 7 12 89 300 000 99 98 85 -18-19-20 000 38 12 02 -18.8 -20.7 28.86 7 12 92 303 000 102 84 82 -18-19-19 000 39 12 03 -19.6 -21.2 28.84 7 12 91 302 000 107 82 78 -18-19-19 000 40 12 04 -20.5 -21.5 28.82 7 13 92 303 000 115 88 72 -18-19-19 000 41 12 05 -21.3 -22.0 28.80 7 14 94 305 000 121 86 67 -18-19-20 000 42 12 06 -22.0 -22.6 28.78 7 13 97 308 001 122 86 63 -18-19-20 000 43 12 07 -22.6 -23.3 28.77 8 13 101 312 001 123 89 61 -18-19-20 000 44 12 08 -23.1 -23.8 28.74 7 12 103 314 001 123 91 59 -18-19-20 000 45 12 09 -23.4 -24.0 28.72 7 10 105 316 000 123 91 55 -18-19-19 000 46 12 10 -23.7 -24.3 28.69 7 9 108 319 001 124 87 52 -18-19-19 000 47 12 11 -23.9 -24.5 28.68 6 9 107 318 001 124 85 48 -18-19-19 000 48 12 12 -23.7 -24.3 28.67 6 8 108 319 001 124 81 45 -18-18-18 000 49 12 13 -23.5 -24.0 28.65 5 7 108 319 001 124 78 42 -18-18-18 000 50 12 14 -23.0 -23.5 28.63 5 7 102 313 001 123 75 39 -18-18-18 000 51 12 15 -22.6 -23.9 28.62 5 7 86 297 000 113 70 40 -17-17-17 000 52 12 16 -22.0 -23.7 28.61 5 6 72 283 000 108 67 44 -17-17-17 000 53 12 17 -21.1 -23.1 28.60 5 6 55 266 001 103 65 49 -17-17-17 000 54 12 18 -20.1 -22.4 28.59 5 6 42 253 000 99 60 55 -17-17-16 000 55 12 19 -19.4 -21.6 28.58 4 5 35 246 000 99 61 57 -17-17-16 000 56 12 20 -18.6 -21.1 28.57 2 3 28 239 000 95 60 58 -17-17-16 000 57 12 21 -17.9 -20.7 28.57 1 1 9 220 000 93 56 58 -17-16-16 000 58 12 22 -17.5 -20.1 28.57 0 1 352 203 000 94 55 55 -17-16-16 000 59 12 23 -17.2 -19.7 28.57 1 2 212 63 000 95 52 52 -17-16-16 000 60 13 00 -17.3 -20.1 28.56 3 3 183 34 000 92 54 51 -16-16-16 000 61 13 01 -17.6 -20.3 28.55 3 3 181 32 000 92 53 48 -16-16-16 000 62 13 02 -18.1 -20.7 28.55 2 3 183 34 000 93 50 48 -16-16-16 000 63 13 03 -18.7 -21.3 28.54 3 4 184 35 000 93 48 47 -16-16-16 000 64 13 04 -19.2 -21.9 28.52 3 6 184 35 000 94 50 46 -16-16-16 000 65 13 05 -19.7 -22.2 28.51 3 6 183 34 000 96 50 44 -16-16-16 000 66 13 06 -20.2 -22.6 28.50 3 6 195 46 001 98 47 40 -16-16-16 000 67 13 07 -20.8 -22.9 28.50 4 7 190 41 000 101 44 35 -16-15-16 000 68 13 08 -21.2 -23.1 28.49 3 7 176 28 000 103 43 37 -16-15-16 000 69 13 09 -21.2 -23.1 28.48 2 5 177 28 000 102 41 38 -15-15-16 000 70 13 10 -21.0 -22.9 28.46 1 4 191 42 000 100 40 44 -15-15-16 000 71 13 11 -20.8 -22.8 28.46 0 3 168 19 000 100 44 56 -15-16-16 000 72 13 12 -20.4 -22.7 28.45 1 2 273 124 000 96 36 75 -16-15-15 000 73 13 13 -20.1 -22.9 28.45 1 2 322 173 000 92 36 79 -16-15-15 000 74 13 14 -20.3 -23.0 28.44 1 2 334 185 000 94 34 72 -16-15-16 000 75 13 15 -20.8 -22.9 28.44 4 4 322 173 000 100 34 70 -16-15-16 000 76 13 16 -20.5 -23.7 28.44 5 6 303 154 000 88 37 70 -16-15-15 000 77 13 17 -20.1 -23.1 28.44 6 8 323 174 000 89 40 69 -16-16-16 000 78 13 18 -19.6 -21.9 28.45 6 9 339 190 000 98 41 76 -16-16-16 000 79 13 19 -19.1 -21.4 28.46 5 9 356 207 000 98 43 72 -16-16-16 000 80 13 20 -18.3 -21.2 28.47 6 8 351 202 000 91 40 44 -16-16-16 000 81 13 21 -18.1 -21.1 28.49 5 6 356 207 000 91 48 36 -16-16-16 000 82 13 22 -17.9 -20.9 28.50 5 7 4 215 000 90 60 43 -16-16-17 000 83 13 23 -17.7 -20.6 28.51 6 7 7 218 000 91 66 47 -16-16-17 000 84 14 00 -17.6 -20.5 28.53 5 7 354 205 000 92 68 49 -15-16-17 000 85 14 01 -17.5 -20.5 28.55 5 7 354 205 000 91 71 52 -16-16-17 000 86 14 02 -17.7 -20.5 28.56 4 5 342 193 000 91 73 54 -16-16-17 000 87 14 03 -18.1 -20.8 28.57 1 4 292 143 000 93 76 55 -16-17-17 000 88 14 04 -18.2 -20.9 28.59 1 4 281 132 000 94 75 62 -16-17-16 000 89 14 05 -18.6 -21.3 28.61 2 3 318 169 000 94 73 63 -16-16-16 000 90 14 06 -19.1 -21.8 28.62 2 2 318 169 000 94 72 62 -16-16-16 000 91 14 07 -19.5 -22.2 28.64 1 1 338 189 000 93 73 58 -16-16-17 000 92 14 08 -19.8 -22.5 28.65 1 1 12 223 000 94 74 56 -16-16-17 000 93 14 09 -20.0 -22.6 28.67 4 4 349 200 000 95 71 56 -16-16-16 000 94 14 10 -20.9 -23.3 28.70 5 6 342 193 000 96 67 58 -16-16-16 000 95 14 11 -21.4 -23.5 28.72 6 7 335 186 001 100 65 59 -16-16-16 000 96 14 12 -21.5 -23.3 28.74 5 7 333 185 000 103 68 57 -16-16-17 000 97 14 13 -21.7 -23.6 28.76 6 8 335 186 -001 103 65 58 -16-16-17 000 98 14 14 -21.7 -23.4 28.78 6 8 335 186 000 107 62 59 -16-16-17 000 99 14 15 -21.4 -23.1 28.79 5 8 336 187 001 107 63 61 -16-17-17 000 100 14 16 -20.9 -22.8 28.81 5 8 331 182 000 104 60 63 -16-17-17 000 101 14 17 -20.2 -22.4 28.83 5 7 324 175 000 100 60 65 -16-16-17 000 102 14 18 -19.5 -21.9 28.84 4 6 335 186 000 96 63 66 -16-17-17 000 103 14 19 -18.7 -21.5 28.87 4 6 343 194 000 92 67 67 -17-17-18 000 104 14 20 -18.2 -21.1 28.89 4 6 345 196 000 91 66 68 -16-17-17 000 105 14 21 -17.7 -20.8 28.91 4 5 358 209 000 89 65 70 -16-17-17 000 106 14 22 -17.4 -20.6 28.92 3 5 353 204 001 89 68 71 -16-17-17 000 107 14 23 -17.2 -20.4 28.93 3 4 3 214 000 89 70 72 -16-17-17 000 108 15 00 -17.1 -20.3 28.95 3 3 12 223 000 89 70 73 -16-17-17 000 109 15 01 -17.1 -20.2 28.96 2 3 29 240 -001 89 68 74 -16-17-17 000 110 15 02 -17.4 -20.1 28.98 3 3 41 252 000 91 68 74 -16-17-16 000 111 15 03 -18.1 -20.6 28.99 4 4 51 262 000 93 66 74 -16-17-16 000 112 15 04 -18.8 -21.2 28.99 5 5 51 262 000 96 61 72 -16-16-16 000 113 15 05 -19.4 -22.0 29.00 5 6 53 264 000 94 56 69 -16-16-16 000 114 15 06 -20.1 -22.7 29.01 5 6 54 265 000 94 56 66 -16-16-16 000 115 15 07 -20.6 -23.2 29.02 6 7 59 270 000 94 54 64 -16-16-16 000 116 15 08 -20.8 -23.5 29.03 6 7 66 277 -002 93 54 57 -15-15-16 000 117 15 09 -20.9 -23.6 29.03 6 7 62 273 002 92 52 52 -15-15-16 000 118 15 10 -21.1 -23.7 29.04 6 8 67 278 001 93 51 53 -15-15-15 000 119 15 11 -20.9 -23.7 29.05 6 7 69 280 000 92 50 52 -15-15-15 000 120 15 12 -20.6 -23.6 29.05 6 7 71 282 000 89 47 53 -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.