USAP McMurdo Station (B165) site lat/lon = (-77.8471,166.6652) cell lat/lon = (-77.8585,166.6521) Forecast initialized at 2025-12-19/12 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 19 12 -10.8 -14.4 29.02 4 4 50 217 000 72 57 69 -7 -6 -6 000 1 19 13 -8.4 -11.0 29.01 5 5 61 228 -002 86 67 79 -7 -6 -7 000 2 19 14 -10.1 -18.3 29.01 2 2 63 230 000 78 81 83 -6 -6 -7 000 3 19 15 -9.1 -10.3 29.01 4 4 111 278 000 99 87 92 -6 -6 -7 000 4 19 16 -8.8 -10.1 29.02 3 3 98 265 000 96 89 95 -6 -6 -7 000 5 19 17 -8.6 -9.6 29.02 3 3 99 266 -001 99 91 99 -6 -7 -7 000 6 19 18 -8.9 -9.5 29.02 6 6 98 265 000 102 92100 -6 -7 -7 000 7 19 19 -8.5 -10.7 29.02 10 11 85 251 000 88 93102 -7 -7 -7 000 8 19 20 -8.4 -11.8 29.05 11 14 82 249 -001 78 88101 -7 -7 -7 000 9 19 21 -7.9 -11.3 29.06 12 15 79 246 000 79 83104 -8 -7 -8 000 10 19 22 -7.2 -10.6 29.07 11 14 84 251 000 79 80105 -8 -7 -8 000 11 19 23 -6.7 -11.0 29.07 10 12 92 258 000 72 75 98 -8 -7 -8 000 12 20 00 -6.9 -11.4 29.07 10 12 86 253 000 71 68 96 -8 -8 -8 000 13 20 01 -7.1 -11.4 29.08 9 11 88 254 000 72 56 96 -8 -8 -8 000 14 20 02 -6.9 -11.3 29.10 9 10 91 258 000 72 45 92 -8 -8 -8 000 15 20 03 -6.9 -11.3 29.09 9 10 92 258 000 71 52 96 -8 -8 -8 000 16 20 04 -7.0 -11.1 29.10 9 10 89 256 000 74 55 97 -8 -7 -8 000 17 20 05 -7.0 -10.8 29.10 8 9 88 255 000 76 57 98 -8 -7 -8 000 18 20 06 -7.0 -11.0 29.10 8 9 90 257 000 74 55 90 -7 -7 -8 000 19 20 07 -7.2 -11.0 29.09 8 10 86 253 000 75 53 75 -7 -7 -8 000 20 20 08 -7.3 -11.0 29.10 8 8 86 252 000 77 53 68 -7 -7 -8 000 21 20 09 -7.4 -10.7 29.10 7 8 86 253 000 80 47 77 -8 -7 -8 000 22 20 10 -7.6 -10.6 29.11 7 8 87 253 000 83 59 63 -8 -7 -8 000 23 20 11 -7.9 -11.3 29.11 7 8 83 249 000 79 57 52 -8 -7 -8 000 24 20 12 -8.5 -11.6 29.11 5 5 90 257 000 82 66 49 -8 -7 -8 000 25 20 13 -8.8 -11.4 29.11 2 3 98 265 000 87 80 47 -8 -7 -8 000 26 20 14 -8.7 -11.2 29.12 1 4 98 264 000 87 79 48 -8 -7 -8 000 27 20 15 -9.0 -11.4 29.14 1 1 117 283 000 85 75 56 -7 -7 -8 000 28 20 16 -9.8 -11.8 29.13 2 2 80 246 000 91 69 69 -8 -8 -8 000 29 20 17 -7.8 -10.7 29.14 4 5 46 213 000 83 92 86 -8 -8 -8 000 30 20 18 -7.9 -10.7 29.15 7 7 67 234 000 84 86106 -8 -7 -8 000 31 20 19 -7.6 -9.7 29.16 5 6 80 247 000 90 87112 -9 -8 -8 000 32 20 20 -7.4 -9.8 29.18 6 11 71 238 000 87 86111 -9 -8 -8 000 33 20 21 -7.0 -9.5 29.19 5 11 92 259 000 86 78110 -8 -9 -9 000 34 20 22 -6.2 -9.5 29.20 8 14 120 287 000 80 87100 -8 -9 -9 000 35 20 23 -5.6 -9.4 29.22 12 15 140 306 000 75 84105 -7 -9-10 001 36 21 00 -5.4 -9.5 29.23 13 17 146 312 003 73 74112 -7 -8 -9 000 37 21 01 -5.6 -9.6 29.25 16 23 151 318 003 73 61 99 -7 -8 -9 000 38 21 02 -5.5 -9.9 29.26 16 21 152 319 -007 70 71113 -7 -8 -9 000 39 21 03 -5.3 -10.1 29.27 14 16 146 313 000 67 69113 -7 -8 -9 000 40 21 04 -5.1 -9.8 29.27 15 19 150 317 001 68 57100 -7 -7 -8 000 41 21 05 -4.9 -9.7 29.28 16 19 151 317 000 68 59104 -7 -7 -8 000 42 21 06 -5.0 -9.9 29.29 18 22 158 325 000 66 57 96 -6 -7 -8 000 43 21 07 -5.1 -10.4 29.30 16 22 157 324 001 63 49 87 -6 -7 -8 000 44 21 08 -5.0 -10.3 29.32 16 21 153 320 -005 64 47 89 -6 -6 -7 000 45 21 09 -5.3 -10.0 29.34 18 23 150 317 -001 67 70 98 -6 -7 -8 000 46 21 10 -5.6 -9.3 29.34 14 19 140 306 000 75 66107 -6 -7 -8 001 47 21 11 -5.7 -10.0 29.35 10 14 146 312 -002 71 67100 -6 -7 -8 001 48 21 12 -6.0 -10.6 29.36 15 20 129 295 -001 69 50 96 -7 -7 -8 000 49 21 13 -6.3 -11.1 29.37 15 22 123 290 -002 67 47 87 -6 -7 -8 000 50 21 14 -7.1 -11.0 29.38 11 15 109 276 -001 75 71 83 -7 -8 -9 000 51 21 15 -6.8 -10.1 29.39 7 9 110 276 000 80 69 75 -7 -8 -9 000 52 21 16 -7.1 -10.0 29.40 6 8 104 271 -001 83 59 74 -7 -8 -9 000 53 21 17 -6.9 -10.1 29.39 5 7 103 270 000 81 54 73 -6 -7 -9 000 54 21 18 -7.3 -10.2 29.39 6 9 95 262 000 84 52 73 -6 -7 -9 000 55 21 19 -7.1 -10.9 29.39 7 10 73 239 -001 76 53 62 -6 -7 -9 000 56 21 20 -5.5 -11.9 29.40 9 11 71 238 001 58 56 61 -6 -8 -8 000 57 21 21 -5.4 -11.4 29.41 11 12 69 236 000 60 55 63 -7 -8 -8 000 58 21 22 -5.4 -11.5 29.41 11 11 73 239 000 60 54 79 -7 -7 -7 000 59 21 23 -5.2 -10.4 29.41 11 12 72 239 001 66 49 99 -7 -7 -8 000 60 22 00 -5.9 -9.7 29.41 13 14 73 240 000 75 47 98 -6 -6 -7 000 61 22 01 -6.1 -9.6 29.40 13 14 73 239 000 78 48100 -6 -6 -7 000 62 22 02 -6.1 -9.5 29.39 13 14 74 241 000 78 51 95 -6 -6 -7 000 63 22 03 -5.9 -9.5 29.39 12 13 78 244 002 77 52 90 -6 -6 -7 000 64 22 04 -5.7 -9.3 29.39 12 13 72 238 001 76 58 79 -6 -6 -7 000 65 22 05 -5.4 -8.9 29.39 11 12 69 235 -001 77 64 65 -5 -6 -7 000 66 22 06 -5.2 -8.4 29.39 9 10 57 223 000 79 70 51 -5 -5 -6 000 67 22 07 -4.0 -7.9 29.39 4 7 2 169 001 75 69 48 -4 -5 -7 000 68 22 08 -3.4 -6.9 29.38 2 9 258 64 001 78 82 53 -4 -6 -7 000 69 22 09 -4.0 -7.6 29.37 4 11 264 70 000 77 70 77 -5 -5 -7 000 70 22 10 -5.1 -7.6 29.37 2 10 189 356 000 87 71 84 -5 -5 -7 000 71 22 11 -6.0 -8.5 29.36 1 3 75 241 -007 88 75 88 -5 -5 -7 000 72 22 12 -6.5 -8.4 29.37 2 2 111 278 -004 92 81 87 -5 -6 -7 000 73 22 13 -7.3 -8.7 29.36 3 3 152 319 -004 95 85 83 -5 -6 -7 000 74 22 14 -7.1 -9.8 29.36 2 2 67 233 006 85 92 56 -5 -6 -7 000 75 22 15 -6.1 -10.2 29.35 1 2 74 241 004 76 85 43 -5 -6 -7 000 76 22 16 -5.1 -9.8 29.35 3 6 349 155 -005 70 66 38 -5 -5 -6 000 77 22 17 -6.9 -8.3 29.35 1 1 160 327 003 95 82 42 -5 -6 -6 000 78 22 18 -6.4 -8.0 29.34 0 2 135 302 008 92 71 34 -5 -6 -6 000 79 22 19 -6.7 -9.1 29.34 0 0 180 346 -002 86 70 36 -5 -6 -6 000 80 22 20 -5.4 -8.8 29.34 1 1 304 111 -003 80 59 35 -5 -5 -6 000 81 22 21 -4.0 -8.2 29.34 2 2 293 100 003 79 50 33 -4 -5 -5 000 82 22 22 -2.9 -6.7 29.34 2 3 296 103 -005 79 35 34 -4 -4 -5 000 83 22 23 -2.3 -6.9 29.34 2 3 301 108 -006 73 42 35 -4 -4 -5 000 84 23 00 -1.9 -7.4 29.34 4 4 289 95 -005 68 54 32 -4 -5 -4 000 85 23 01 -1.9 -6.9 29.34 2 3 234 40 000 71 59 30 -3 -5 -4 000 86 23 02 -2.1 -5.9 29.34 2 2 223 30 000 78 39 30 -3 -4 -4 000 87 23 03 -1.6 -6.3 29.34 2 3 283 89 -001 73 34 27 -3 -3 -4 000 88 23 04 -1.3 -7.8 29.33 3 4 300 106 000 62 55 23 -3 -4 -4 000 89 23 05 -1.4 -7.2 29.33 4 4 298 105 -001 66 39 23 -3 -3 -4 000 90 23 06 -1.5 -7.6 29.33 4 5 283 89 003 65 46 21 -3 -4 -4 000 91 23 07 -1.6 -6.6 29.33 4 6 288 94 000 70 35 22 -3 -3 -4 000 92 23 08 -1.8 -5.2 29.34 4 6 308 115 005 74 34 16 -3 -3 -4 000 93 23 09 -2.3 -4.9 29.34 5 9 317 124 000 81 40 24 -3 -4 -4 000 94 23 10 -3.4 -5.8 29.34 4 9 309 116 007 86 46 31 -3 -3 -3 000 95 23 11 -4.6 -8.2 29.35 3 8 319 125 003 85 31 38 -3 -2 -2 000 96 23 12 -6.8 -11.1 29.35 2 6 327 134 000 90 30 39 -2 -2 -3 000 97 23 13 -3.6 -10.3 29.36 6 6 5 172 -005 58 34 39 0 -2 -3 000 98 23 14 -2.9 -13.6 29.37 6 25 79 246 -003 36 36 36 -2 -3 -4 000 99 23 15 -3.5 -12.0 29.38 8 24 71 238 -011 43 26 46 -2 -2 -3 000 100 23 16 -3.1 -12.1 29.39 8 8 46 213 -016 40 32 45 -2 -2 -3 000 101 23 17 -2.9 -12.3 29.39 8 8 34 201 -011 38 34 40 -2 -3 -4 000 102 23 18 -2.0 -11.4 29.40 8 11 6 172 -008 37 29 36 -1 -2 -4 000 103 23 19 -1.0 -15.2 29.40 2 16 167 333 -031 29 31 33 -2 -3 -4 000 104 23 20 -2.2 -10.1 29.41 7 14 171 337 -015 49 25 36 -2 -3 -4 000 105 23 21 -1.1 -11.0 29.42 7 8 83 249 003 47 28 36 -2 -3 -4 000 106 23 22 -2.2 -10.6 29.43 21 25 183 350 003 45 35 41 -3 -4 -5 000 107 23 23 -2.1 -11.5 29.44 16 27 165 331 -006 40 33 37 -3 -4 -5 000 108 24 00 -2.0 -12.3 29.45 13 25 157 323 -016 45 39 36 -3 -4 -5 000 109 24 01 -2.0 -11.6 29.45 12 23 133 299 -013 48 41 37 -3 -4 -5 000 110 24 02 -1.9 -11.3 29.45 12 23 119 286 -015 49 44 35 -3 -4 -5 000 111 24 03 -1.3 -12.1 29.44 9 20 114 281 -007 44 42 37 -3 -4 -5 000 112 24 04 -1.0 -12.8 29.44 7 18 112 279 012 40 42 40 -2 -3 -5 000 113 24 05 -0.9 -12.2 29.44 6 18 96 262 008 41 41 40 -2 -3 -4 000 114 24 06 -0.9 -11.7 29.43 8 21 103 269 -017 41 36 44 -2 -3 -4 000 115 24 07 -1.4 -9.3 29.44 7 22 70 237 -011 44 40 48 -2 -3 -4 000 116 24 08 -1.7 -9.7 29.44 6 22 44 211 004 43 41 47 -2 -3 -4 000 117 24 09 -2.2 -10.3 29.44 7 20 39 206 -013 43 41 47 -1 -3 -4 000 118 24 10 -2.7 -12.3 29.44 5 20 51 217 000 39 40 47 -1 -3 -4 000 119 24 11 -3.1 -15.1 29.44 3 15 88 254 -015 35 39 45 -2 -3 -3 000 120 24 12 -3.1 -11.6 29.45 8 8 30 196 -023 43 31 51 -1 -2 -3 000 * 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.