USAP McMurdo Station (B165) site lat/lon = (-77.8471,166.6652) cell lat/lon = (-77.8585,166.6521) Forecast initialized at 2026-04-30/12 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 30 12 -26.5 -31.8 29.16 5 5 43 209 003 75 78 93 -25-25-26 000 1 30 13 -25.9 -30.3 29.17 11 18 43 210 003 78 81114 -24-25-26 000 2 30 14 -27.9 -30.8 29.18 1 1 15 182 003 78 83129 -23-25-27 000 3 30 15 -25.1 -28.8 29.21 12 26 68 235 003 90 90116 -24-26-27 004 4 30 16 -26.0 -29.7 29.23 21 32 86 253 002 88 98 97 -26-26-27 004 5 30 17 -25.4 -30.1 29.23 22 29 75 241 -009 81 98119 -26-27-28 001 6 30 18 -25.1 -30.2 29.25 23 30 74 240 -002 76 90116 -25-26-27 000 7 30 19 -24.9 -29.7 29.24 21 34 85 251 -002 79 96107 -25-27-28 001 8 30 20 -25.2 -30.2 29.25 22 37 86 252 -009 77 89 93 -26-27-28 001 9 30 21 -25.2 -30.2 29.31 16 28 80 246 003 78 85104 -25-26-27 000 10 30 22 -25.5 -30.6 29.28 21 31 80 246 001 76 92 79 -26-27-28 001 11 30 23 -25.4 -31.4 29.28 19 28 70 237 004 69 80 96 -25-26-27 000 12 01 00 -25.6 -31.4 29.30 13 22 55 222 -005 69 90106 -25-26-27 000 13 01 01 -26.6 -31.1 29.33 13 24 90 257 -002 82 96107 -26-27-28 000 14 01 02 -26.6 -30.4 29.35 14 29 94 261 -003 89100 93 -27-28-28 001 15 01 03 -27.8 -31.7 29.37 19 34 98 265 -002 89 98 98 -28-29-28 001 16 01 04 -27.3 -31.6 29.37 19 28 81 248 -002 86101106 -28-29-29 001 17 01 05 -27.4 -31.9 29.37 20 31 74 241 002 84 98102 -28-29-30 000 18 01 06 -27.8 -32.4 29.39 20 27 90 256 -006 83100101 -28-30-30 001 19 01 07 -28.6 -33.4 29.39 17 29 88 255 -001 81 98101 -29-30-30 001 20 01 08 -28.7 -33.0 29.40 22 31 81 248 -014 86 89102 -28-29-30 001 21 01 09 -28.5 -32.9 29.42 19 33 93 259 -002 84100110 -29-30-31 004 22 01 10 -28.2 -32.7 29.43 19 31 87 254 000 83102123 -29-30-31 005 23 01 11 -28.4 -32.8 29.45 18 33 101 267 007 85106111 -29-30-31 003 24 01 12 -28.3 -32.7 29.46 21 34 110 277 010 85103106 -29-30-31 001 25 01 13 -28.0 -32.4 29.46 19 30 97 263 008 84102101 -29-29-30 001 26 01 14 -28.0 -32.6 29.45 19 28 77 244 005 83 98 89 -28-29-30 001 27 01 15 -27.4 -32.2 29.44 18 27 73 240 002 79 96 91 -28-29-30 000 28 01 16 -26.6 -31.8 29.44 17 27 79 246 -003 76 87 88 -27-29-29 000 29 01 17 -26.2 -31.2 29.43 17 26 69 235 000 78 83 87 -27-28-28 000 30 01 18 -27.0 -32.6 29.41 20 24 70 236 -004 75 82 84 -27-28-28 000 31 01 19 -25.8 -31.7 29.40 16 24 66 232 -003 69 74 80 -26-27-27 000 32 01 20 -26.3 -31.7 29.38 14 22 62 229 004 73 68 77 -25-26-27 000 33 01 21 -27.1 -31.5 29.37 12 16 51 217 004 78 65 73 -24-26-27 000 34 01 22 -27.2 -33.7 29.36 11 14 54 220 003 64 60 65 -24-26-27 000 35 01 23 -30.7 -34.2 29.36 10 14 88 254 001 99 58 62 -25-25-27 000 36 02 00 -31.5 -36.3 29.35 9 11 74 241 002 82 58 52 -25-26-27 000 37 02 01 -31.6 -37.1 29.34 9 10 68 235 001 74 58 46 -26-26-27 000 38 02 02 -31.7 -35.6 29.33 9 9 76 242 003 77 60 37 -26-26-27 000 39 02 03 -31.2 -33.8 29.32 9 9 67 234 006 86 55 37 -26-26-25 000 40 02 04 -30.5 -35.6 29.30 10 10 62 229 005 80 40 35 -26-25-25 000 41 02 05 -30.6 -38.4 29.29 6 6 50 217 003 65 42 32 -26-25-25 000 42 02 06 -30.8 -35.2 29.27 1 1 294 101 003 64 43 34 -27-24-25 000 43 02 07 -31.8 -38.1 29.27 2 2 41 207 000 76 43 37 -26-24-24 000 44 02 08 -32.4 -34.0 29.25 1 2 93 260 000 92 55 41 -26-24-25 000 45 02 09 -32.1 -36.9 29.24 2 2 93 260 002 89 36 41 -25-24-25 000 46 02 10 -35.1 -35.5 29.24 2 2 139 305 002 118 34 41 -25-23-25 000 47 02 11 -36.7 -39.5 29.22 2 2 108 275 002 113 35 33 -25-23-24 000 48 02 12 -34.5 -37.9 29.21 0 1 48 215 000 103 33 32 -25-23-24 000 49 02 13 -33.1 -35.3 29.20 2 2 332 139 000 119 31 30 -24-23-24 000 50 02 14 -34.5 -36.4 29.20 1 2 276 83 -001 102 31 28 -24-23-23 000 51 02 15 -36.6 -39.4 29.19 1 2 268 75 001 112 30 28 -23-22-23 000 52 02 16 -37.3 -40.3 29.18 1 3 297 103 002 109 30 28 -23-22-23 000 53 02 17 -35.0 -37.0 29.17 6 7 316 123 000 103 28 27 -23-22-23 000 54 02 18 -30.5 -33.9 29.16 9 11 333 140 001 81 28 27 -23-22-23 000 55 02 19 -29.8 -34.9 29.15 10 11 338 144 000 78 27 25 -23-22-23 000 56 02 20 -30.2 -37.9 29.13 8 8 336 142 001 59 25 26 -23-22-23 000 57 02 21 -29.3 -38.0 29.13 4 5 331 137 000 54 23 27 -23-22-22 000 58 02 22 -30.9 -37.2 29.12 2 2 126 293 000 57 22 27 -22-21-22 000 59 02 23 -30.0 -40.7 29.10 1 1 63 230 000 43 22 24 -21-21-22 000 60 03 00 -28.7 -38.1 29.09 2 2 78 245 001 41 21 29 -20-20-21 000 61 03 01 -34.6 -38.3 29.09 3 3 131 298 004 98 22 32 -20-20-21 000 62 03 02 -28.6 -37.7 29.06 1 1 19 186 002 45 22 52 -19-19-20 000 63 03 03 -26.7 -36.3 29.04 1 2 44 210 003 39 27 60 -19-19-19 000 64 03 04 -27.8 -35.0 29.02 1 2 319 125 001 48 31 64 -18-18-18 000 65 03 05 -27.3 -37.8 29.00 4 5 344 150 001 49 37 71 -17-17-18 000 66 03 06 -25.2 -36.6 28.98 1 3 303 109 000 59 35 70 -17-17-18 000 67 03 07 -21.6 -35.4 28.95 9 9 5 171 -003 42 40 79 -15-15-16 000 68 03 08 -19.4 -26.6 28.94 11 20 33 199 -005 46 47 84 -15-16-16 000 69 03 09 -17.0 -24.4 28.90 12 23 42 209 000 48 51 77 -14-15-16 000 70 03 10 -17.0 -23.2 28.88 12 22 46 212 001 53 51 77 -14-15-16 000 71 03 11 -16.5 -22.5 28.86 12 15 52 219 -004 60 51 74 -14-15-15 000 72 03 12 -14.4 -21.6 28.85 14 22 58 224 -002 56 52 78 -13-14-15 000 73 03 13 -14.1 -19.8 28.83 17 21 84 251 -006 65 50 65 -14-14-15 000 74 03 14 -16.0 -21.2 28.84 13 14 69 236 -005 69 49 77 -12-13-14 000 75 03 15 -13.4 -18.0 28.80 19 28 95 262 -002 74 53 59 -13-13-13 000 76 03 16 -14.1 -18.2 28.81 17 28 135 302 -009 78 55 60 -12-13-14 000 77 03 17 -13.7 -17.9 28.81 19 26 173 339 -034 77 59 62 -12-13-13 000 78 03 18 -12.5 -16.7 28.83 45 60 176 343 -014 76 76 61 -13-14-14 000 79 03 19 -12.9 -17.2 28.81 36 46 168 335 -013 76 84 50 -13-15-17 000 80 03 20 -13.9 -18.4 28.84 36 51 171 338 -001 75 68 77 -14-14-13 000 81 03 21 -14.7 -18.8 28.84 39 57 175 342 -148 79 84 78 -15-16-16 000 82 03 22 -20.7 -24.0 28.94 30 34 95 261 035 90101120 -20-21-21 007 83 03 23 -23.2 -26.6 28.98 31 36 99 265 025 91100108 -23-22-22 021 84 04 00 -24.8 -28.5 29.03 28 34 95 262 -014 90 99106 -25-24-24 015 85 04 01 -25.2 -28.7 29.06 29 32 90 257 -019 92100103 -25-24-23 031 86 04 02 -25.0 -28.5 29.08 28 32 88 254 -013 92100102 -25-24-23 026 87 04 03 -24.7 -28.3 29.10 27 32 89 256 -008 91100103 -24-23-23 028 88 04 04 -24.3 -27.7 29.12 26 30 90 256 -001 92 96103 -23-23-22 023 89 04 05 -24.2 -27.4 29.14 25 28 78 245 012 94 95104 -23-22-22 032 90 04 06 -23.5 -27.0 29.15 26 30 78 244 003 92 96102 -23-21-21 036 91 04 07 -22.4 -25.9 29.16 25 30 79 245 -005 90 97100 -22-21-20 025 92 04 08 -22.1 -25.6 29.18 26 30 76 242 -009 89 98 98 -22-20-19 014 93 04 09 -21.4 -25.1 29.21 25 31 75 242 -004 87 98 96 -21-20-19 005 94 04 10 -21.2 -25.0 29.23 25 30 76 243 000 86 97 95 -21-20-19 004 95 04 11 -20.6 -24.4 29.25 25 30 76 243 004 85 96 95 -21-19-18 010 96 04 12 -19.9 -23.5 29.26 24 29 74 241 003 87 95 94 -20-18-18 011 97 04 13 -19.7 -23.1 29.27 24 28 68 235 016 89 93100 -19-17-17 008 98 04 14 -20.0 -23.1 29.29 19 25 72 239 011 92 93103 -17-17-17 004 99 04 15 -20.2 -23.0 29.30 17 23 75 242 008 95 91103 -16-16-17 006 100 04 16 -18.6 -21.3 29.32 17 22 70 236 -002 93 90108 -15-16-17 003 101 04 17 -16.1 -19.2 29.33 16 25 64 231 -009 88 92116 -15-16-17 001 102 04 18 -14.8 -18.3 29.34 17 28 64 231 -008 83 94112 -14-15-16 001 103 04 19 -14.3 -17.8 29.36 17 29 67 234 -012 83 97118 -14-15-16 001 104 04 20 -14.3 -17.6 29.39 17 40 88 255 -013 84 94 89 -14-15-16 002 105 04 21 -15.5 -18.3 29.43 9 32 94 261 -005 90 93101 -15-16-16 003 106 04 22 -15.1 -17.5 29.44 14 27 69 236 -016 89 94104 -15-16-16 001 107 04 23 -14.6 -18.1 29.43 19 31 69 236 -007 84 87 92 -14-15-16 000 108 05 00 -14.8 -17.7 29.43 19 26 69 236 -007 89 91 87 -14-14-15 000 109 05 01 -14.7 -18.3 29.43 21 23 54 221 -007 83 86 86 -13-14-15 000 110 05 02 -14.4 -18.1 29.43 19 32 69 235 -006 82 90 75 -14-14-15 000 111 05 03 -14.9 -17.6 29.43 19 30 84 250 014 91 92 80 -14-15-16 000 112 05 04 -15.6 -17.9 29.45 18 26 96 262 -019 96 95 97 -15-15-15 000 113 05 05 -15.3 -18.3 29.46 17 29 82 248 -009 89104117 -15-16-16 003 114 05 06 -14.4 -17.8 29.45 16 22 68 234 -004 84103 99 -15-16-16 002 115 05 07 -14.4 -17.3 29.45 16 23 69 235 -001 88 99 96 -15-16-16 006 116 05 08 -14.3 -17.0 29.45 15 17 64 230 -001 91 98102 -15-16-16 016 117 05 09 -14.1 -17.1 29.44 15 17 53 220 -002 88 97 99 -14-16-16 017 118 05 10 -15.7 -18.9 29.42 11 15 40 207 -002 88 91 92 -13-15-16 008 119 05 11 -16.2 -20.5 29.41 11 12 38 205 002 80 88 92 -13-15-16 002 120 05 12 -17.4 -22.5 29.39 10 10 33 200 -006 76 84 91 -13-14-16 001 * 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.