USAP McMurdo Station (B165) site lat/lon = (-77.8471,166.6652) cell lat/lon = (-77.8585,166.6521) Forecast initialized at 2026-01-12/00 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 12 00 -8.5 -11.4 29.00 2 2 93 260 000 81 78 65 -9 -9 -9 000 1 12 01 -7.0 -9.9 28.98 6 7 84 250 001 84 69 71 -8 -8 -8 000 2 12 02 -6.8 -9.6 28.99 9 10 79 245 000 83 66 75 -8 -8 -8 000 3 12 03 -6.6 -9.4 28.98 11 12 77 243 000 84 63 79 -8 -7 -8 000 4 12 04 -6.6 -9.3 28.95 11 12 73 240 000 84 66 88 -7 -7 -8 000 5 12 05 -6.6 -9.4 28.97 12 12 70 237 000 83 74 86 -7 -7 -7 000 6 12 06 -6.6 -9.5 28.95 12 12 71 237 000 83 76107 -7 -6 -7 000 7 12 07 -6.6 -9.4 28.93 11 12 71 238 000 83 77105 -7 -6 -7 000 8 12 08 -7.0 -9.4 28.93 11 13 70 236 000 86 77 99 -6 -6 -7 000 9 12 09 -7.2 -9.8 28.93 12 12 68 235 000 85 79101 -6 -6 -7 000 10 12 10 -7.8 -10.4 28.92 12 13 64 230 000 85 83 93 -6 -6 -7 000 11 12 11 -8.2 -10.2 28.92 12 13 62 229 000 91 86 85 -6 -6 -7 000 12 12 12 -8.2 -9.5 28.91 9 9 61 228 000 97 88 95 -5 -6 -7 000 13 12 13 -7.0 -8.3 28.91 6 6 68 235 000 96 88 98 -5 -6 -7 000 14 12 14 -7.7 -8.7 28.91 5 5 84 250 003 99 85 94 -5 -6 -7 000 15 12 15 -7.2 -7.9 28.93 3 3 89 255 -002 101 92101 -5 -6 -7 000 16 12 16 -7.3 -8.2 28.94 3 3 97 264 -001 100 98 94 -5 -6 -8 000 17 12 17 -6.1 -7.5 28.94 1 6 78 244 -001 95101 95 -5 -7 -8 000 18 12 18 -7.3 -8.3 28.94 2 3 151 318 -001 99 79101 -6 -6 -7 000 19 12 19 -7.5 -8.7 28.95 2 2 128 294 -002 97 59 94 -6 -6 -7 000 20 12 20 -7.0 -8.3 28.96 2 2 142 309 -001 96 62 98 -6 -6 -7 000 21 12 21 -6.6 -8.0 28.98 3 3 139 306 -004 95 61101 -6 -6 -7 000 22 12 22 -6.0 -7.4 28.99 5 5 126 293 000 96 62 99 -6 -6 -7 000 23 12 23 -5.7 -7.3 28.99 5 6 118 285 -001 93 65103 -7 -6 -7 000 24 13 00 -5.2 -7.5 29.01 6 6 117 283 -002 93 68106 -7 -6 -7 000 25 13 01 -5.1 -7.6 29.02 7 8 104 271 -003 92 68107 -7 -6 -7 000 26 13 02 -5.1 -7.6 29.03 10 11 97 264 000 86 75101 -7 -7 -7 000 27 13 03 -5.5 -8.2 29.03 11 13 100 266 000 83 85100 -6 -7 -7 000 28 13 04 -5.7 -8.2 29.03 11 13 102 268 001 85 68100 -7 -7 -8 000 29 13 05 -5.9 -7.5 29.04 12 14 102 269 -002 93 71 98 -7 -7 -8 000 30 13 06 -6.1 -8.1 29.06 12 14 101 268 000 89 63 89 -8 -7 -8 000 31 13 07 -6.4 -8.6 29.07 12 15 96 263 000 88 62 92 -8 -7 -8 000 32 13 08 -6.9 -8.5 29.07 13 16 87 254 001 93 70 90 -8 -8 -8 000 33 13 09 -7.5 -9.6 29.07 14 18 80 247 001 89 66 89 -8 -8 -8 000 34 13 10 -7.9 -9.7 29.07 13 17 79 246 002 92 78 91 -8 -8 -8 000 35 13 11 -8.4 -9.9 29.08 14 17 75 241 001 95 80 92 -8 -8 -8 000 36 13 12 -8.7 -10.1 29.08 13 17 72 238 001 96 83 95 -8 -8 -8 000 37 13 13 -8.9 -10.1 29.09 14 17 68 234 000 98 79 96 -8 -8 -8 000 38 13 14 -9.0 -10.5 29.09 13 17 67 234 001 95 81106 -8 -8 -8 000 39 13 15 -9.0 -10.5 29.10 14 16 70 237 -004 95 83106 -8 -8 -8 002 40 13 16 -9.3 -10.4 29.10 13 16 73 239 -002 99 87105 -9 -8 -8 004 41 13 17 -9.3 -10.2 29.09 13 15 75 242 000 100 87110 -9 -7 -8 000 42 13 18 -9.7 -10.3 29.09 13 15 73 240 000 104 81100 -8 -7 -7 000 43 13 19 -10.1 -10.5 29.09 11 12 79 245 000 106 84 91 -8 -7 -8 000 44 13 20 -10.6 -10.8 29.09 11 12 82 249 -003 108 83107 -8 -7 -8 000 45 13 21 -10.4 -11.0 29.09 11 11 78 245 -001 104 87107 -8 -7 -8 000 46 13 22 -9.8 -10.7 29.09 10 10 83 249 -003 100 87108 -8 -7 -8 000 47 13 23 -8.8 -10.1 29.09 9 9 83 250 000 97 88105 -8 -7 -8 000 48 14 00 -8.2 -9.6 29.09 9 9 82 248 -004 95 87101 -8 -7 -8 001 49 14 01 -8.0 -9.5 29.08 9 9 85 252 000 95 87104 -8 -7 -8 000 50 14 02 -7.2 -8.8 29.08 8 9 88 255 000 94 86110 -7 -7 -8 000 51 14 03 -6.6 -7.9 29.07 10 10 86 253 001 95 82110 -7 -6 -7 000 52 14 04 -6.2 -7.7 29.07 10 11 81 247 003 94 82108 -6 -6 -7 000 53 14 05 -5.9 -7.5 29.06 10 11 76 243 004 93 85108 -6 -6 -7 000 54 14 06 -5.9 -7.3 29.05 7 8 94 261 002 94 94107 -6 -6 -7 057 55 14 07 -5.9 -7.2 29.04 9 10 94 260 -002 95 89110 -6 -6 -7 028 56 14 08 -5.6 -6.9 29.04 9 10 88 254 -003 95 83110 -6 -5 -6 007 57 14 09 -5.5 -6.8 29.04 8 8 95 261 000 96 91109 -6 -6 -7 037 58 14 10 -5.5 -6.7 29.04 7 8 95 262 -002 96 90109 -6 -6 -7 006 59 14 11 -5.5 -6.7 29.04 8 8 95 262 000 97 89108 -6 -6 -7 014 60 14 12 -5.8 -6.9 29.03 8 9 99 266 001 97 88106 -6 -6 -7 006 61 14 13 -5.9 -7.0 29.03 7 8 107 274 -003 97 87100 -6 -6 -7 002 62 14 14 -6.4 -7.4 29.03 7 8 105 271 001 98 93 97 -7 -6 -7 005 63 14 15 -6.8 -7.6 29.03 7 8 105 272 -001 101 92 94 -7 -6 -6 003 64 14 16 -7.2 -7.9 29.02 6 7 104 270 -005 101 96 99 -7 -6 -6 001 65 14 17 -7.9 -8.5 29.02 7 7 103 270 -003 103 99 94 -8 -7 -6 002 66 14 18 -7.8 -7.8 29.02 6 8 92 259 -001 108106 90 -8 -8 -6 002 67 14 19 -7.0 -7.1 29.03 7 9 106 272 -003 106101 89 -8 -8 -6 000 68 14 20 -6.8 -7.3 29.03 6 8 107 274 000 102109 88 -8 -9 -7 000 69 14 21 -6.6 -7.1 29.03 6 7 108 274 -001 103105 88 -8 -8 -7 000 70 14 22 -6.6 -7.0 29.04 6 7 101 268 -002 103109 89 -8 -9 -7 000 71 14 23 -5.9 -7.4 29.04 4 6 100 266 -001 100109 87 -7 -9 -8 000 72 15 00 -5.5 -7.1 29.05 3 4 108 274 002 95109 88 -7 -8 -8 000 73 15 01 -5.0 -7.3 29.05 3 4 110 277 003 89108 88 -7 -8 -8 000 74 15 02 -4.6 -6.9 29.05 6 6 91 257 002 89108 87 -6 -8 -8 000 75 15 03 -4.7 -6.9 29.05 9 9 90 256 000 87105 89 -6 -8 -8 000 76 15 04 -5.1 -8.6 29.05 10 11 93 260 -008 77 94 92 -6 -7 -8 000 77 15 05 -5.3 -8.4 29.05 12 13 94 260 003 80 86 85 -6 -7 -7 000 78 15 06 -5.8 -9.9 29.05 11 12 95 262 005 73 88 89 -6 -7 -7 000 79 15 07 -6.2 -9.6 29.05 11 13 98 264 004 78 84 87 -6 -7 -8 000 80 15 08 -6.7 -9.4 29.06 9 12 95 262 003 84 87 86 -6 -7 -7 000 81 15 09 -6.8 -9.6 29.06 8 11 99 266 001 83 90 88 -6 -7 -7 000 82 15 10 -6.8 -9.6 29.06 8 11 103 269 000 84 91 86 -7 -7 -7 000 83 15 11 -7.6 -10.8 29.07 8 11 99 266 000 81 93 87 -7 -7 -6 000 84 15 12 -8.2 -9.4 29.07 9 11 87 253 001 98 88 88 -7 -7 -6 000 85 15 13 -9.0 -9.0 29.07 12 15 79 246 002 109 79 85 -7 -6 -6 000 86 15 14 -8.8 -8.8 29.07 11 14 80 247 005 109 82 78 -7 -6 -6 000 87 15 15 -9.7 -9.7 29.07 11 13 89 256 004 110 80 74 -7 -6 -6 000 88 15 16 -10.8 -10.8 29.07 12 14 92 258 000 111 78 65 -7 -6 -6 000 89 15 17 -10.9 -10.9 29.07 13 14 90 257 000 112 90 62 -7 -7 -6 000 90 15 18 -10.0 -10.0 29.08 12 14 103 269 -002 111103 53 -8 -7 -7 000 91 15 19 -9.8 -9.8 29.08 11 14 111 277 009 110108 55 -10 -8 -8 000 92 15 20 -8.5 -8.5 29.09 10 12 127 294 000 109108 98 -9 -8 -8 000 93 15 21 -8.0 -8.7 29.10 5 10 166 333 000 102107103 -8 -8 -8 000 94 15 22 -6.8 -8.4 29.11 4 10 137 303 000 94108 83 -8 -8 -8 000 95 15 23 -5.2 -6.2 29.11 11 14 116 282 009 97107103 -7 -7 -8 000 96 16 00 -4.8 -5.8 29.11 13 15 117 284 -001 97107108 -6 -7 -8 003 97 16 01 -4.4 -5.2 29.11 12 14 126 293 -007 98107109 -6 -7 -7 008 98 16 02 -3.8 -4.7 29.11 12 15 134 300 -003 97106109 -5 -6 -7 023 99 16 03 -3.1 -3.9 29.11 15 17 130 297 000 97105108 -4 -5 -6 002 100 16 04 -2.7 -3.6 29.11 16 18 130 297 -002 96105108 -4 -5 -6 001 101 16 05 -2.5 -3.6 29.12 16 19 129 296 004 97105105 -4 -5 -6 000 102 16 06 -2.7 -3.3 29.13 18 21 130 297 006 98105106 -4 -5 -5 000 103 16 07 -2.7 -3.4 29.14 18 21 132 299 -001 97105108 -4 -5 -5 000 104 16 08 -3.1 -3.9 29.15 17 20 134 301 000 97104105 -4 -5 -5 000 105 16 09 -3.4 -4.3 29.16 16 20 137 303 004 97105105 -5 -5 -6 000 106 16 10 -3.9 -4.6 29.17 14 18 131 298 -006 98106104 -5 -6 -6 000 107 16 11 -4.4 -5.2 29.19 12 17 126 292 -007 98104100 -6 -6 -6 000 108 16 12 -4.9 -5.8 29.20 8 14 110 277 -004 98100102 -6 -6 -6 000 109 16 13 -4.6 -5.5 29.21 8 11 105 271 -005 97103102 -6 -6 -6 000 110 16 14 -5.5 -5.9 29.22 7 7 90 257 001 103107 98 -6 -7 -6 001 111 16 15 -6.2 -6.3 29.22 10 12 86 252 -004 106107102 -7 -7 -6 001 112 16 16 -6.6 -6.7 29.23 11 12 80 246 000 107107 96 -8 -7 -7 000 113 16 17 -6.4 -6.4 29.24 10 13 79 246 -003 106107100 -7 -7 -6 000 114 16 18 -6.2 -6.4 29.25 13 14 86 252 -005 105101 95 -8 -7 -6 001 115 16 19 -6.5 -7.4 29.26 13 14 82 249 -002 99 93 89 -8 -6 -6 002 116 16 20 -6.3 -7.3 29.26 15 16 86 253 -002 98 78 86 -7 -6 -6 001 117 16 21 -6.5 -7.6 29.27 13 14 89 256 -003 97 63 78 -7 -6 -6 000 118 16 22 -5.9 -7.6 29.28 12 13 96 262 -003 92 61 93 -7 -6 -6 000 119 16 23 -5.7 -7.7 29.29 11 12 93 260 -003 89 57 65 -7 -6 -6 000 120 17 00 -5.3 -7.7 29.29 12 14 87 254 -002 86 51 58 -6 -5 -6 000 * 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.