USAP McMurdo Station (B165) site lat/lon = (-77.8471,166.6652) cell lat/lon = (-77.8585,166.6521) Forecast initialized at 2026-10-17/12 UTC MPAS cell scale: 2.4 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 17 12 -17.3 -21.7 28.75 3 3 137 304 003 72 55 54 -13-13-13 000 1 17 13 -21.2 -21.4 28.75 7 7 121 288 001 93 54 55 -14-13-14 000 2 17 14 -22.1 -23.9 28.76 5 8 89 256 002 99 47 85 -15-14-15 000 3 17 15 -16.6 -23.8 28.74 8 16 83 250 -002 53 49 85 -13-12-13 000 4 17 16 -14.8 -21.7 28.70 11 20 69 235 007 57 51 85 -12-12-13 000 5 17 17 -12.9 -20.6 28.71 10 17 65 231 000 50 49 86 -13-13-13 000 6 17 18 -12.5 -20.1 28.70 8 13 71 237 004 50 54 88 -13-13-13 000 7 17 19 -12.8 -19.1 28.69 7 14 54 221 001 55 54 82 -13-13-14 000 8 17 20 -12.4 -18.7 28.70 8 17 54 221 -002 58 61 97 -12-13-13 000 9 17 21 -11.4 -17.6 28.67 5 15 96 263 -001 64 71 97 -12-13-13 000 10 17 22 -11.2 -16.3 28.67 3 14 103 270 000 71 75 94 -12-13-13 000 11 17 23 -10.6 -15.4 28.65 3 13 53 219 -004 73 80 93 -12-13-13 000 12 18 00 -9.7 -13.9 28.65 4 11 101 268 -004 76 85 98 -11-12-12 003 13 18 01 -8.9 -12.9 28.65 4 12 106 272 -003 77 81102 -10-11-12 002 14 18 02 -8.5 -12.2 28.63 4 14 75 242 -014 79 86 96 -10-11-12 010 15 18 03 -7.8 -12.1 28.62 8 20 106 273 -005 74 80 96 -9-10-11 011 16 18 04 -7.4 -13.0 28.63 10 24 119 285 -006 63 69 94 -8-10-11 000 17 18 05 -7.3 -12.2 28.61 13 25 69 236 001 68 72 89 -8 -9-10 000 18 18 06 -7.7 -12.3 28.60 13 27 63 230 -007 70 73 99 -8 -9-10 000 19 18 07 -7.7 -12.1 28.58 17 27 70 236 -006 72 74 92 -8 -9-10 000 20 18 08 -7.7 -11.8 28.58 17 31 83 250 -008 75 73 80 -8 -9 -9 000 21 18 09 -7.6 -10.8 28.60 14 31 104 271 -014 81 69 99 -8 -8 -9 000 22 18 10 -7.4 -10.2 28.62 13 37 86 252 -011 84 93 96 -7 -8 -9 000 23 18 11 -7.6 -9.9 28.61 14 31 91 257 -004 89 87 99 -7 -8 -9 000 24 18 12 -7.4 -9.5 28.60 16 32 89 255 -005 89 88 88 -7 -8 -9 000 25 18 13 -6.9 -9.7 28.59 21 36 95 261 -002 84 83 82 -7 -8 -9 000 26 18 14 -7.0 -9.8 28.61 18 42 106 272 -003 84 93 79 -8 -9-10 000 27 18 15 -8.4 -10.8 28.65 17 38 110 276 -011 88 91 84 -9-10-11 000 28 18 16 -8.5 -11.1 28.65 18 38 127 294 -009 87 91 94 -8 -9-10 000 29 18 17 -8.4 -11.0 28.66 17 40 124 291 -015 87 93105 -9-10-11 001 30 18 18 -8.2 -11.7 28.68 25 43 155 321 -032 79 93110 -9-10-12 001 31 18 19 -8.6 -12.0 28.70 25 44 157 323 -040 81 95116 -9-11-12 000 32 18 20 -8.9 -12.4 28.73 24 43 158 325 -047 81 94111 -10-11-13 002 33 18 21 -9.1 -12.6 28.74 24 42 161 328 -043 79 92107 -10-11-13 002 34 18 22 -9.0 -12.4 28.76 25 41 164 331 -011 81 94110 -10-11-13 003 35 18 23 -8.9 -12.5 28.77 26 42 165 332 -010 79 91106 -10-11-13 002 36 19 00 -8.7 -12.5 28.79 26 42 164 330 -027 77 89111 -9-11-12 000 37 19 01 -8.3 -12.3 28.81 24 39 156 323 -036 76 88109 -9-11-12 000 38 19 02 -7.6 -11.7 28.81 26 43 158 324 -048 74 86100 -9-10-11 000 39 19 03 -7.5 -11.8 28.81 29 46 165 332 -100 73 83 83 -8-10-11 000 40 19 04 -7.3 -11.6 28.82 19 40 162 329 -204 72 83 91 -8 -9-11 000 41 19 05 -7.5 -11.5 28.83 14 36 140 307 -173 75 84 96 -8 -9-11 000 42 19 06 -7.6 -11.5 28.85 16 37 138 305 -068 75 83 88 -8 -9-11 000 43 19 07 -8.6 -12.5 28.85 5 32 150 317 036 71 80 97 -7 -9-10 000 44 19 08 -9.6 -13.0 28.85 4 32 98 265 010 76 78 92 -7 -8-10 000 45 19 09 -10.7 -12.4 28.86 3 29 27 194 -017 79 78 90 -7 -9-10 000 46 19 10 -9.9 -13.6 28.86 8 31 26 192 -036 76 77 91 -7 -8-10 000 47 19 11 -10.9 -14.7 28.86 6 34 55 222 -005 74 85 92 -8 -9-10 000 48 19 12 -11.4 -11.4 28.87 3 35 72 239 -005 83 84 94 -8 -9-10 000 49 19 13 -12.0 -12.0 28.86 3 33 10 176 000 82 83 94 -8 -9-10 000 50 19 14 -11.8 -15.4 28.87 6 35 83 250 -009 76 64102 -8 -9-10 000 51 19 15 -11.4 -16.2 28.87 9 39 91 258 -006 70 64101 -8 -9-10 000 52 19 16 -10.4 -14.9 28.87 9 38 62 229 -038 70 70 97 -8 -9-10 000 53 19 17 -10.9 -15.6 28.88 6 17 28 195 -015 68 76102 -8 -9-10 000 54 19 18 -9.6 -13.7 28.88 3 28 339 146 -017 68 79103 -8 -9-11 000 55 19 19 -8.9 -12.9 28.87 2 30 25 192 -014 71 77 92 -8 -9-10 000 56 19 20 -7.9 -11.6 28.86 3 30 68 234 -032 72 78 88 -8 -9-11 000 57 19 21 -7.2 -11.5 28.88 6 27 178 345 -048 71 78100 -8 -9-11 000 58 19 22 -7.2 -12.4 28.89 12 32 162 329 -067 66 73 89 -8 -9-11 000 59 19 23 -7.2 -12.6 28.90 20 35 167 334 -097 65 67 81 -8 -9-11 000 60 20 00 -6.9 -12.7 28.90 11 28 145 311 -058 61 63 77 -8 -9-10 000 61 20 01 -6.5 -13.0 28.89 12 28 136 303 -055 57 61 80 -7 -9-10 000 62 20 02 -6.0 -13.2 28.88 8 23 146 313 -030 53 61 82 -7 -8-10 000 63 20 03 -5.8 -13.1 28.88 11 27 139 306 -044 52 59 80 -7 -8 -9 000 64 20 04 -6.3 -12.1 28.89 6 26 59 226 -010 58 61 89 -7 -8 -9 000 65 20 05 -6.4 -12.2 28.89 8 25 95 262 -019 60 59 81 -7 -8 -9 000 66 20 06 -6.2 -12.0 28.87 7 31 66 232 002 59 60 86 -6 -8 -9 000 67 20 07 -6.3 -11.6 28.88 7 31 86 253 -007 60 65 91 -6 -8 -9 000 68 20 08 -7.0 -11.7 28.89 9 32 106 272 -017 67 69 86 -7 -8-10 000 69 20 09 -7.5 -11.5 28.89 12 29 63 230 -011 74 71 94 -7 -8 -9 000 70 20 10 -7.5 -11.3 28.89 14 30 56 222 000 76 72 89 -7 -8 -9 000 71 20 11 -7.6 -12.2 28.90 15 35 63 229 000 70 73 91 -7 -9-10 000 72 20 12 -8.3 -12.8 28.92 13 34 81 248 002 71 69 83 -8 -9-10 000 73 20 13 -8.3 -13.9 28.91 17 31 83 250 -007 64 64 77 -8 -9-10 000 74 20 14 -8.3 -14.2 28.92 17 35 74 241 -014 62 65 79 -8 -9-10 000 75 20 15 -8.4 -14.2 28.93 15 34 71 237 -007 62 66 74 -8 -9-11 000 76 20 16 -8.4 -14.5 28.94 15 34 78 245 013 61 66 79 -8-10-11 000 77 20 17 -8.2 -14.8 28.92 16 34 72 238 010 57 63 72 -8 -9-11 000 78 20 18 -8.2 -14.8 28.92 17 34 64 230 -007 57 59 80 -8 -9-10 000 79 20 19 -8.2 -13.9 28.92 17 31 68 235 -003 63 63 91 -8 -9-10 000 80 20 20 -7.7 -13.7 28.96 14 30 123 289 000 61 66 86 -9-10-11 000 81 20 21 -7.1 -13.6 28.96 10 25 110 277 -002 58 63 86 -8 -9-10 000 82 20 22 -7.2 -13.7 28.96 13 27 106 273 -008 58 64 90 -8 -9-11 000 83 20 23 -7.0 -13.2 28.97 13 25 94 261 001 60 68 91 -8 -9-11 000 84 21 00 -6.8 -13.1 28.97 14 27 119 285 001 59 68 93 -8 -9-10 000 85 21 01 -6.9 -12.5 28.97 14 25 135 301 -005 64 74107 -8 -9-11 000 86 21 02 -7.6 -12.0 28.98 17 28 138 304 -014 72 81110 -9-10-11 000 87 21 03 -8.1 -12.3 28.98 20 31 131 297 -004 74 82100 -9-10-12 000 88 21 04 -8.0 -11.9 28.97 16 28 121 287 -011 76 86112 -9-10-11 002 89 21 05 -7.5 -12.1 28.95 13 24 116 283 010 71 77105 -8-10-11 000 90 21 06 -8.0 -11.8 28.95 18 33 115 282 000 77 87 98 -9-10-12 000 91 21 07 -8.5 -12.1 28.96 16 28 147 314 005 79 83 96 -9-11-12 001 92 21 08 -9.0 -12.4 28.95 15 24 80 246 000 81 79 92 -10-11-12 002 93 21 09 -8.9 -13.2 28.93 13 27 57 224 -004 73 71 83 -9-10-11 000 94 21 10 -8.5 -13.5 28.92 12 26 56 222 -006 67 61 79 -8 -9-10 000 95 21 11 -8.7 -14.3 28.91 12 26 48 215 -002 62 58 71 -7 -9-10 000 96 21 12 -9.6 -16.5 28.90 13 33 65 231 -012 57 57 63 -7 -9-10 000 97 21 13 -10.5 -16.7 28.90 13 25 59 226 -003 61 53 64 -7 -9-10 000 98 21 14 -10.8 -18.0 28.90 14 26 73 240 -003 56 56 73 -8 -9-10 000 99 21 15 -10.9 -18.2 28.89 13 30 57 224 -011 56 58 77 -8 -9-10 000 100 21 16 -10.9 -18.1 28.89 12 29 49 215 -019 56 61 88 -8 -9-10 000 101 21 17 -10.2 -15.9 28.88 14 26 36 203 -009 64 68 99 -8 -9-11 000 102 21 18 -9.7 -14.1 28.88 13 23 66 232 -021 73 70 94 -8 -9-10 000 103 21 19 -8.4 -13.5 28.87 14 29 55 222 -022 67 71 92 -8 -9-10 000 104 21 20 -7.7 -12.9 28.87 11 31 71 238 -010 65 73 93 -8 -9-10 000 105 21 21 -7.1 -11.8 28.88 16 31 124 290 -018 69 80 99 -8 -9-10 000 106 21 22 -6.9 -13.3 28.88 14 29 128 294 -035 58 63 81 -8 -9-10 000 107 21 23 -7.2 -13.7 28.89 14 28 118 284 -004 57 64 80 -8 -9-10 000 108 22 00 -6.7 -13.7 28.89 15 24 104 270 -008 55 63 79 -8 -9-10 000 109 22 01 -7.3 -13.8 28.90 14 23 117 284 -008 58 63 61 -8-10-11 000 110 22 02 -7.6 -15.0 28.89 15 23 105 271 -020 53 54 53 -8-10-11 000 111 22 03 -7.5 -14.3 28.90 12 22 111 278 -005 56 53 52 -8-10-11 000 112 22 04 -7.9 -14.4 28.90 13 21 110 277 000 58 53 52 -9-10-11 000 113 22 05 -8.1 -15.4 28.90 12 20 103 270 018 54 37 39 -9 -9-10 000 114 22 06 -7.7 -15.6 28.90 7 17 82 248 021 48 42 39 -9-10-10 000 115 22 07 -9.3 -16.9 28.90 6 14 47 213 009 41 41 38 -8-10-10 000 116 22 08 -10.7 -19.6 28.91 8 14 59 226 007 39 36 39 -8 -9-10 000 117 22 09 -11.3 -19.5 28.91 8 15 104 270 002 44 34 38 -8 -9-10 000 118 22 10 -13.0 -21.0 28.91 7 14 102 269 007 42 35 38 -8 -9-10 000 119 22 11 -13.8 -22.3 28.92 7 10 89 255 007 49 35 44 -8 -9-10 000 120 22 12 -13.5 -22.0 28.92 9 18 131 298 003 49 40 50 -8 -9-10 000 * 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.