USAP McMurdo Station (B165) site lat/lon = (-77.8471,166.6652) cell lat/lon = (-77.8585,166.6521) Forecast initialized at 2026-05-03/12 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 03 12 -19.8 -22.6 28.98 4 4 301 108 004 94 91 99 -18-17-16 000 1 03 13 -20.1 -22.7 29.00 6 6 298 105 -008 97 95102 -16-15-16 013 2 03 14 -19.1 -21.6 29.01 1 15 226 32 -003 97 95119 -16-16-16 024 3 03 15 -15.9 -18.3 29.00 10 31 88 255 000 94103110 -16-17-17 024 4 03 16 -16.0 -18.8 29.01 17 29 113 280 012 91103111 -16-17-17 024 5 03 17 -15.7 -18.6 29.02 15 29 88 254 007 89104107 -16-17-16 005 6 03 18 -14.9 -17.9 29.03 15 25 73 240 003 88100101 -15-16-15 018 7 03 19 -14.4 -17.3 29.01 15 24 63 230 001 89 96 96 -14-14-14 009 8 03 20 -13.6 -16.7 28.99 15 25 61 227 -002 86 87 89 -13-13-13 005 9 03 21 -12.8 -16.0 28.99 13 20 56 223 -005 85 83 81 -12-13-13 002 10 03 22 -12.4 -15.7 29.00 11 20 58 224 -010 83 79 81 -11-12-13 000 11 03 23 -12.7 -15.9 29.02 9 19 52 219 -009 85 84 93 -11-13-14 000 12 04 00 -15.7 -16.6 29.02 8 9 344 151 -006 95 92100 -12-13-14 000 13 04 01 -16.5 -18.8 29.04 6 9 331 137 000 97 98102 -13-13-14 000 14 04 02 -13.4 -15.7 29.03 9 12 52 218 -007 94 90103 -12-13-14 002 15 04 03 -15.6 -16.0 29.05 3 5 357 164 -012 98 98107 -12-13-14 003 16 04 04 -12.3 -14.6 29.06 9 15 49 216 -010 92 94100 -12-13-14 015 17 04 05 -12.4 -14.7 29.05 9 10 43 209 -010 92 96106 -12-13-13 020 18 04 06 -12.5 -15.3 29.05 8 13 27 193 -011 87 95106 -11-12-13 025 19 04 07 -12.9 -14.0 29.07 3 9 345 151 -011 92 98105 -11-12-14 016 20 04 08 -12.2 -14.1 29.08 6 8 13 180 -006 94 97104 -11-12-13 026 21 04 09 -11.3 -13.8 29.08 9 11 27 193 -006 89 93107 -11-12-12 020 22 04 10 -11.3 -13.8 29.09 8 15 16 182 -011 89 94110 -10-11-12 017 23 04 11 -10.7 -13.0 29.10 9 25 40 206 -011 90 96105 -10-11-12 028 24 04 12 -12.8 -12.8 29.12 11 29 85 251 -010 95 97117 -11-12-13 006 25 04 13 -12.8 -15.7 29.14 18 39 144 311 000 88 82 81 -12-12-13 000 26 04 14 -12.0 -15.8 29.16 29 44 163 329 002 79 73 85 -12-12-13 000 27 04 15 -13.4 -17.6 29.20 19 40 152 319 009 77 79 90 -14-15-15 000 28 04 16 -13.6 -17.3 29.23 34 47 177 343 -003 81 76 78 -14-14-14 000 29 04 17 -14.1 -16.8 29.27 19 32 108 274 043 90 98104 -14-15-16 002 30 04 18 -13.5 -16.6 29.29 19 31 85 252 -007 86 96106 -14-15-16 005 31 04 19 -14.4 -17.2 29.29 22 27 86 253 -007 90 98105 -15-15-16 006 32 04 20 -13.6 -16.9 29.29 24 40 90 257 012 84 89102 -14-15-15 002 33 04 21 -14.8 -17.9 29.32 28 39 117 284 -006 87 98120 -16-17-18 005 34 04 22 -17.2 -20.5 29.35 32 44 121 288 024 87 98 82 -18-19-19 005 35 04 23 -17.8 -21.6 29.39 26 36 108 274 013 84 99 86 -19-20-21 007 36 05 00 -18.2 -21.8 29.40 31 45 121 288 009 86 97 72 -19-20-20 005 37 05 01 -18.6 -21.9 29.44 23 34 99 266 055 89103 91 -19-20-20 004 38 05 02 -18.5 -22.0 29.46 21 30 100 266 040 86102 95 -19-21-21 004 39 05 03 -19.6 -22.9 29.46 24 29 89 255 011 89 98 86 -20-20-21 003 40 05 04 -18.3 -22.1 29.46 23 31 90 257 -001 84 97 83 -19-20-21 002 41 05 05 -18.3 -22.1 29.47 18 27 87 254 -007 83 94 89 -19-20-20 001 42 05 06 -17.6 -21.2 29.45 18 26 67 233 -003 84 88 83 -18-19-20 001 43 05 07 -18.1 -21.8 29.45 20 24 69 235 000 85 86 89 -18-19-19 000 44 05 08 -19.7 -22.0 29.44 13 18 69 235 001 100 86 95 -17-18-19 000 45 05 09 -20.3 -22.7 29.43 10 12 56 223 -001 100 86102 -16-18-19 000 46 05 10 -19.2 -22.7 29.42 9 9 44 211 003 87 83101 -16-17-19 000 47 05 11 -20.8 -22.6 29.42 10 12 345 151 -001 109 80101 -16-17-18 000 48 05 12 -21.9 -22.9 29.40 12 15 343 150 002 119 78 96 -16-17-18 000 49 05 13 -23.4 -24.2 29.38 10 12 336 142 004 125 74 92 -17-16-17 000 50 05 14 -23.4 -24.2 29.36 9 11 337 144 006 125 78 88 -17-17-17 000 51 05 15 -23.3 -24.0 29.34 9 11 336 143 005 125 76 83 -18-17-17 000 52 05 16 -22.8 -23.6 29.32 8 11 336 143 005 124 73 77 -18-16-17 000 53 05 17 -23.0 -23.0 29.30 8 9 335 141 003 120 70 72 -18-16-16 000 54 05 18 -22.2 -23.9 29.26 8 9 339 146 001 109 64 68 -17-16-16 000 55 05 19 -24.0 -24.0 29.24 1 7 287 94 000 123 64 66 -17-16-16 000 56 05 20 -29.0 -30.3 29.22 1 2 182 349 000 120 66 65 -17-16-16 000 57 05 21 -28.1 -29.5 29.20 0 0 222 28 000 123 64 65 -17-16-15 000 58 05 22 -26.0 -27.5 29.19 2 2 324 131 001 119 58 63 -17-16-15 000 59 05 23 -25.3 -26.3 29.17 5 10 335 141 000 127 59 62 -17-17-15 000 60 06 00 -24.7 -25.4 29.16 7 10 336 143 000 127 65 62 -17-17-16 000 61 06 01 -23.2 -23.9 29.15 4 6 344 150 000 125 52 62 -18-16-16 000 62 06 02 -25.7 -26.6 29.14 3 3 88 255 000 128 53 62 -18-17-16 000 63 06 03 -28.1 -28.7 29.12 6 6 94 260 000 131 56 62 -18-17-16 000 64 06 04 -26.9 -26.9 29.10 2 2 89 256 000 129 45 61 -18-16-17 000 65 06 05 -28.4 -28.4 29.09 1 1 152 318 001 125 44 62 -18-16-16 000 66 06 06 -29.2 -31.1 29.08 2 3 112 279 001 113 47 63 -18-17-16 000 67 06 07 -27.3 -29.0 29.06 3 3 88 255 000 118 48 62 -17-16-16 000 68 06 08 -24.3 -26.3 29.04 2 2 3 170 002 113 43 60 -17-16-16 000 69 06 09 -27.1 -27.1 29.02 5 6 305 112 000 121 37 55 -17-16-16 000 70 06 10 -30.4 -32.2 29.01 2 4 250 57 -001 117 35 57 -17-16-16 000 71 06 11 -27.2 -28.3 28.98 5 7 308 115 -001 128 31 44 -17-15-15 000 72 06 12 -27.6 -28.7 28.96 4 7 306 113 -004 129 34 43 -17-15-15 000 73 06 13 -25.7 -25.7 28.95 7 8 324 130 -005 127 33 47 -17-15-15 000 74 06 14 -23.8 -24.7 28.92 13 16 336 143 000 121 30 55 -16-14-14 000 75 06 15 -22.2 -25.5 28.89 15 17 338 145 000 92 40 77 -15-13-13 000 76 06 16 -22.3 -26.0 28.88 11 14 332 139 001 88 38 83 -15-13-13 000 77 06 17 -22.3 -25.7 28.86 9 13 307 114 -003 92 39 93 -16-13-14 000 78 06 18 -20.4 -25.3 28.84 11 13 334 141 -003 75 45 97 -15-13-14 000 79 06 19 -19.2 -24.5 28.81 12 14 337 143 -002 71 65 98 -14-13-14 001 80 06 20 -17.6 -23.1 28.80 11 12 345 152 -002 74 80101 -12-12-13 004 81 06 21 -18.2 -21.9 28.79 8 9 341 148 000 83 90 91 -14-14-14 003 82 06 22 -18.0 -20.3 28.78 6 7 65 231 000 98 75 99 -13-12-13 002 83 06 23 -12.3 -14.9 28.76 18 22 70 237 -008 89 84 85 -12-13-14 003 84 07 00 -12.5 -15.6 28.76 17 18 72 239 -001 85 85 97 -12-13-14 003 85 07 01 -12.6 -15.1 28.76 15 17 74 241 -003 91 93 99 -12-14-14 006 86 07 02 -11.9 -14.1 28.77 14 15 75 242 -002 92 95104 -12-14-13 011 87 07 03 -12.0 -14.5 28.76 17 26 77 244 -013 90 99 99 -13-14-15 016 88 07 04 -14.7 -17.0 28.79 22 27 101 268 011 94106120 -14-15-16 024 89 07 05 -17.2 -19.9 28.80 25 30 101 268 014 93101120 -16-16-16 011 90 07 06 -17.9 -20.8 28.80 24 28 86 252 025 91101107 -17-16-16 008 91 07 07 -16.5 -19.6 28.80 23 30 90 257 024 89 99109 -16-16-16 009 92 07 08 -14.9 -18.0 28.80 19 36 93 259 -008 88100 99 -15-15-16 004 93 07 09 -14.2 -17.8 28.79 21 34 76 242 -011 82 98108 -14-15-15 004 94 07 10 -13.8 -17.3 28.80 20 34 75 242 007 83 99115 -14-14-15 006 95 07 11 -13.8 -16.9 28.81 19 38 91 257 012 86 98 97 -14-15-15 004 96 07 12 -13.7 -16.8 28.84 15 29 107 273 028 87101120 -14-15-15 003 97 07 13 -13.3 -16.7 28.83 21 36 91 257 007 83102114 -14-15-16 005 98 07 14 -13.3 -16.6 28.84 20 30 88 254 001 84101114 -14-15-15 006 99 07 15 -13.2 -16.5 28.84 21 31 87 254 008 85101119 -14-14-15 004 100 07 16 -13.1 -16.5 28.85 22 30 84 251 000 84101119 -14-15-15 003 101 07 17 -13.3 -16.9 28.86 23 32 83 250 006 82 99117 -14-15-16 003 102 07 18 -13.2 -16.7 28.85 25 32 73 240 004 83 97112 -14-15-15 001 103 07 19 -13.5 -17.1 28.86 22 32 83 250 004 82 88112 -13-14-15 001 104 07 20 -13.1 -16.5 28.87 22 33 93 260 015 83 92118 -13-14-16 000 105 07 21 -14.0 -17.0 28.89 23 29 87 254 -003 88100104 -15-16-17 009 106 07 22 -15.2 -18.4 28.89 25 34 85 252 012 87 99 99 -16-17-18 012 107 07 23 -16.2 -19.6 28.91 23 33 91 258 021 86 96103 -17-17-18 002 108 08 00 -15.8 -19.7 28.91 24 33 81 247 -006 81 95104 -17-18-19 000 109 08 01 -16.1 -20.2 28.92 22 30 73 239 -011 80 93 95 -17-18-19 002 110 08 02 -16.6 -20.9 28.92 21 24 66 232 -017 78 89 93 -17-18-18 001 111 08 03 -17.0 -21.7 28.91 18 22 63 229 -014 75 84 87 -16-18-18 000 112 08 04 -18.3 -22.1 28.92 14 19 70 237 -008 84 78105 -16-17-18 000 113 08 05 -20.2 -22.7 28.92 13 17 61 228 -003 98 82105 -16-18-19 000 114 08 06 -19.1 -23.0 28.93 12 16 49 216 -004 83 85103 -17-18-19 000 115 08 07 -18.6 -22.9 28.92 12 16 50 217 -003 79 85100 -17-18-18 000 116 08 08 -17.0 -21.9 28.92 9 16 42 208 -007 70 84105 -16-18-19 000 117 08 09 -16.8 -20.4 28.92 9 14 60 226 -003 83 88109 -16-17-19 002 118 08 10 -15.8 -18.6 28.92 9 16 36 202 -005 91 91109 -15-17-19 005 119 08 11 -15.1 -18.6 28.92 12 15 58 225 -002 83 93108 -15-17-18 006 120 08 12 -16.9 -19.0 28.92 9 17 36 203 -005 85 92109 -15-17-18 007 * 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.