USAP Siple Dome (SDM) site lat/lon = (-81.6640,-149.0175) cell lat/lon = (-81.6600,-148.9887) Forecast initialized at 2026-02-02/12 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 02 12 -6.3 -7.2 28.85 7 12 19 230 000 95 95 96 -6 -6 -6 000 1 02 13 -7.3 -7.5 28.84 8 12 21 232 -002 107100101 -6 -6 -6 002 2 02 14 -6.9 -7.0 28.85 8 13 31 242 -002 107106102 -6 -6 -6 001 3 02 15 -6.0 -6.3 28.85 9 12 33 244 000 103106102 -5 -6 -6 003 4 02 16 -5.6 -6.1 28.84 10 13 30 241 -001 101106100 -5 -6 -6 008 5 02 17 -5.6 -6.2 28.85 10 13 29 240 000 101105 99 -5 -5 -6 014 6 02 18 -5.6 -6.0 28.83 10 15 24 235 -001 101106 97 -6 -5 -6 013 7 02 19 -5.0 -5.3 28.83 11 16 16 227 -001 103106 98 -5 -6 -6 008 8 02 20 -4.4 -4.8 28.83 11 16 10 221 000 102103100 -5 -5 -6 011 9 02 21 -3.6 -4.1 28.82 11 15 2 213 -001 99 97 98 -5 -5 -5 019 10 02 22 -3.2 -3.8 28.82 10 13 8 219 -002 98101 97 -4 -5 -5 023 11 02 23 -3.0 -3.4 28.83 11 15 28 239 -003 99105 98 -4 -5 -5 017 12 03 00 -3.2 -3.5 28.81 12 15 25 236 -004 100105 97 -4 -5 -6 018 13 03 01 -3.2 -3.4 28.80 11 14 12 223 -002 102105 99 -4 -5 -6 014 14 03 02 -3.2 -3.3 28.79 10 13 8 219 000 103105 98 -4 -5 -6 009 15 03 03 -2.9 -3.0 28.80 10 12 8 219 -001 102105100 -4 -5 -6 012 16 03 04 -3.1 -3.1 28.79 9 11 4 215 001 103105100 -4 -5 -6 009 17 03 05 -3.2 -3.2 28.79 8 10 1 212 000 103105 97 -4 -5 -6 003 18 03 06 -3.3 -3.6 28.78 8 9 12 223 000 101105 98 -4 -5 -6 001 19 03 07 -3.7 -3.7 28.77 8 9 13 224 000 103105100 -4 -5 -7 000 20 03 08 -3.8 -4.1 28.76 5 7 15 226 001 102106102 -5 -5 -7 000 21 03 09 -3.8 -4.6 28.74 3 5 49 260 000 97106 94 -5 -6 -7 000 22 03 10 -3.8 -4.6 28.74 2 6 82 293 000 97106 91 -4 -6 -7 000 23 03 11 -3.7 -4.4 28.73 5 5 121 332 000 98105 89 -4 -5 -6 000 24 03 12 -3.7 -4.3 28.71 6 7 126 337 002 99105 94 -4 -5 -6 000 25 03 13 -3.9 -4.5 28.69 7 8 136 347 000 99106 90 -4 -6 -7 000 26 03 14 -4.0 -4.5 28.69 7 8 145 356 001 100106 79 -5 -6 -7 000 27 03 15 -3.8 -4.8 28.68 8 9 149 0 000 95106 73 -5 -6 -7 000 28 03 16 -3.9 -4.7 28.64 10 13 140 351 000 97106 73 -5 -6 -7 000 29 03 17 -3.7 -4.5 28.63 11 14 142 353 000 97106 78 -5 -6 -7 000 30 03 18 -3.6 -4.3 28.63 12 15 141 352 000 98106 73 -5 -6 -6 000 31 03 19 -3.5 -4.4 28.62 12 14 143 354 000 95106 73 -5 -6 -6 000 32 03 20 -3.5 -4.1 28.62 12 14 150 1 -001 98106 69 -5 -6 -3 000 33 03 21 -3.5 -3.9 28.61 12 14 154 5 000 100106 65 -5 -6 -2 000 34 03 22 -3.5 -3.8 28.61 11 12 157 8 000 101106 64 -4 -6 -2 000 35 03 23 -3.4 -3.6 28.60 11 12 159 10 000 102105 65 -4 -5 -2 000 36 04 00 -3.5 -3.9 28.60 9 10 164 15 000 100106 67 -4 -5 -2 000 37 04 01 -3.7 -3.9 28.61 6 7 162 13 000 101106 68 -5 -6 -3 000 38 04 02 -3.8 -4.0 28.62 4 4 171 22 -001 102106 68 -5 -6 -4 000 39 04 03 -3.9 -4.3 28.62 1 2 212 63 -002 101106 70 -5 -6 -4 000 40 04 04 -3.9 -4.2 28.63 2 3 314 165 001 102106 72 -5 -6 -5 000 41 04 05 -3.7 -3.7 28.64 5 6 315 166 000 103106 75 -4 -6 -7 000 42 04 06 -3.2 -4.0 28.65 9 10 345 196 -002 96105 75 -4 -5 -6 000 43 04 07 -3.5 -3.5 28.66 9 11 343 194 -001 103105 78 -4 -5 -6 000 44 04 08 -3.8 -3.9 28.66 10 12 345 196 -003 103105 81 -4 -5 -6 000 45 04 09 -4.5 -4.6 28.67 10 12 10 221 000 104106 91 -5 -5 -6 000 46 04 10 -5.2 -5.3 28.68 10 12 24 235 -001 105106103 -5 -6 -6 003 47 04 11 -5.0 -5.1 28.69 11 17 12 223 -001 105105 95 -6 -5 -5 003 48 04 12 -5.4 -5.5 28.70 15 22 9 220 -004 105105100 -6 -5 -5 005 49 04 13 -5.1 -5.2 28.72 16 23 2 213 -004 105105104 -6 -6 -6 003 50 04 14 -5.1 -5.2 28.74 16 23 0 211 -005 105 91 77 -6 -6 -6 000 51 04 15 -5.4 -5.5 28.75 14 21 9 221 -004 105 77 70 -6 -5 -6 000 52 04 16 -5.8 -5.9 28.77 11 17 25 236 -001 106 75 72 -6 -5 -6 000 53 04 17 -6.7 -7.8 28.77 9 14 49 260 -003 97 65 74 -5 -5 -6 000 54 04 18 -8.4 -9.2 28.78 12 18 42 253 -005 102 68 70 -5 -5 -6 000 55 04 19 -8.4 -9.4 28.79 13 17 41 252 -003 100 69 64 -5 -5 -6 000 56 04 20 -8.1 -9.2 28.80 12 17 39 250 000 99 81 67 -5 -6 -7 000 57 04 21 -7.8 -9.0 28.81 12 17 44 255 -001 98 83 72 -5 -6 -7 000 58 04 22 -7.3 -8.7 28.82 13 20 41 252 000 96 82 71 -6 -6 -7 000 59 04 23 -7.3 -8.5 28.83 14 20 41 252 -002 96 80 80 -6 -6 -7 000 60 05 00 -7.4 -8.3 28.84 14 20 39 250 -002 99 85 74 -7 -6 -7 000 61 05 01 -7.2 -8.3 28.84 13 18 37 248 -004 98 90 75 -6 -7 -8 000 62 05 02 -7.3 -8.1 28.84 14 21 37 248 -004 101 90 67 -6 -7 -8 000 63 05 03 -7.1 -7.7 28.85 15 24 33 244 -002 102 86 75 -6 -7 -8 000 64 05 04 -7.0 -7.1 28.85 16 26 28 239 -002 106 95 77 -6 -7 -8 000 65 05 05 -7.0 -7.2 28.84 16 26 22 233 000 106 96 80 -5 -7 -8 000 66 05 06 -7.6 -8.8 28.85 13 26 25 236 -001 97 86 80 -5 -6 -8 000 67 05 07 -8.5 -10.1 28.86 11 23 31 242 -006 94 75 82 -5 -6 -7 000 68 05 08 -9.3 -10.8 28.86 11 19 43 254 -008 95 77 84 -5 -6 -7 000 69 05 09 -9.9 -11.0 28.86 10 18 60 271 -011 100 76 87 -5 -6 -7 000 70 05 10 -10.4 -11.8 28.87 9 16 76 287 -008 98 64 91 -4 -6 -7 000 71 05 11 -10.1 -12.5 28.86 10 18 81 292 -002 86 53 81 -4 -5 -6 000 72 05 12 -9.8 -12.7 28.86 10 20 78 289 -001 82 54 84 -4 -5 -6 000 73 05 13 -9.4 -12.2 28.86 11 22 75 286 -003 83 60 77 -5 -5 -6 000 74 05 14 -9.4 -11.8 28.86 11 21 71 282 -002 87 60 71 -5 -5 -6 000 75 05 15 -9.0 -12.0 28.86 10 18 72 283 -001 80 57 66 -4 -5 -6 000 76 05 16 -8.3 -12.1 28.85 10 18 80 291 000 73 50 68 -4 -5 -5 000 77 05 17 -7.6 -11.7 28.85 10 17 82 293 -002 70 47 84 -3 -4 -5 000 78 05 18 -7.0 -11.2 28.85 9 16 74 285 -003 69 67 85 -3 -4 -5 000 79 05 19 -6.6 -10.6 28.85 8 14 59 270 -002 70 71 84 -3 -4 -5 000 80 05 20 -6.2 -10.0 28.85 7 11 53 264 -002 71 69 84 -3 -4 -5 000 81 05 21 -5.5 -9.0 28.85 6 8 45 256 -003 72 66 85 -3 -4 -5 000 82 05 22 -5.3 -8.4 28.85 5 7 38 249 -002 76 66 89 -4 -4 -5 000 83 05 23 -5.2 -7.7 28.86 4 7 33 244 -001 82 70 95 -4 -4 -6 000 84 06 00 -4.9 -7.0 28.85 5 6 31 242 000 87 80101 -4 -5 -6 000 85 06 01 -4.3 -6.9 28.85 2 3 21 232 -001 84 83101 -4 -5 -6 000 86 06 02 -3.8 -6.4 28.84 1 2 330 181 000 83 80101 -4 -5 -6 000 87 06 03 -3.7 -5.9 28.83 1 2 314 165 000 82 86 90 -4 -5 -6 000 88 06 04 -5.0 -6.1 28.82 5 6 10 221 000 95 87 98 -4 -5 -6 000 89 06 05 -5.9 -7.2 28.82 5 6 9 220 000 95 81109 -4 -5 -7 000 90 06 06 -7.8 -8.5 28.82 6 8 10 221 -004 100 85106 -4 -6 -7 000 91 06 07 -8.9 -9.3 28.82 7 9 18 229 001 107 89101 -5 -6 -7 000 92 06 08 -9.4 -9.7 28.81 7 10 19 230 000 109 84 99 -5 -5 -7 000 93 06 09 -8.8 -9.1 28.81 8 10 17 228 000 108 89102 -5 -6 -7 000 94 06 10 -10.0 -10.3 28.81 5 8 21 232 000 110 83104 -5 -6 -7 000 95 06 11 -10.0 -10.2 28.81 5 10 15 226 002 110 87112 -5 -6 -8 000 96 06 12 -8.3 -8.4 28.80 4 8 6 217 001 108 89112 -6 -6 -8 000 97 06 13 -7.7 -7.9 28.80 4 8 14 225 002 107 95112 -6 -7 -8 000 98 06 14 -7.4 -7.5 28.79 5 8 18 229 000 107100112 -6 -7 -8 009 99 06 15 -6.8 -7.4 28.79 5 6 19 230 -002 103 95112 -6 -7 -8 003 100 06 16 -6.3 -6.4 28.78 5 6 26 237 -002 106 92105 -6 -7 -8 003 101 06 17 -6.2 -6.7 28.78 6 7 24 235 000 103 88101 -6 -7 -8 004 102 06 18 -5.9 -6.0 28.78 6 7 14 225 000 106 91103 -6 -7 -8 000 103 06 19 -5.4 -6.0 28.77 6 6 25 236 001 100 99109 -6 -7 -8 005 104 06 20 -5.3 -5.5 28.77 7 7 27 238 000 104105 95 -6 -7 -8 003 105 06 21 -5.2 -6.2 28.78 5 7 25 236 000 96107 90 -6 -8 -8 000 106 06 22 -5.2 -6.1 28.77 6 7 25 236 000 97 97 92 -6 -7 -8 000 107 06 23 -4.6 -6.0 28.77 4 6 25 236 000 93 97 91 -6 -7 -9 000 108 07 00 -4.7 -5.7 28.76 6 6 27 238 002 96 93 98 -6 -7 -8 000 109 07 01 -6.6 -6.6 28.76 5 6 26 237 000 106 89100 -6 -7 -8 000 110 07 02 -6.9 -7.0 28.75 4 5 22 233 000 107 96 98 -6 -7 -8 000 111 07 03 -7.6 -7.7 28.74 3 4 21 232 000 107 94 99 -6 -7 -8 000 112 07 04 -8.1 -8.2 28.74 2 3 13 225 000 108 93100 -5 -7 -8 000 113 07 05 -9.4 -9.6 28.74 1 2 14 225 -001 109 93101 -5 -7 -8 000 114 07 06 -8.8 -8.9 28.74 1 2 5 216 -001 108 92102 -6 -7 -8 000 115 07 07 -8.2 -8.3 28.74 0 2 18 229 000 107 89100 -6 -7 -8 000 116 07 08 -7.7 -7.8 28.73 0 2 208 59 000 107 86 97 -6 -7 -8 000 117 07 09 -7.2 -7.5 28.73 1 3 14 225 000 105 86104 -6 -7 -8 000 118 07 10 -7.4 -7.6 28.73 2 2 277 128 001 106 79100 -6 -6 -8 000 119 07 11 -7.6 -7.7 28.74 1 3 250 101 000 107 83103 -6 -7 -8 000 120 07 12 -8.3 -8.4 28.75 0 2 276 128 000 108 85107 -6 -7 -8 000 * 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.