USAP McMurdo Station (NZCM) site lat/lon = (-77.8500,166.7100) cell lat/lon = (-77.8403,166.7120) 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 -26.3 -31.7 29.11 6 6 36 203 003 73 81 92 -25-26-27 000 1 30 13 -26.7 -30.3 29.13 12 19 42 209 001 83 85115 -25-26-27 000 2 30 14 -26.5 -30.8 29.14 10 20 44 211 005 74 88126 -24-26-27 000 3 30 15 -24.9 -28.4 29.17 13 26 68 235 000 88 95120 -25-26-28 005 4 30 16 -26.6 -29.9 29.19 20 32 84 251 -002 91104 94 -26-27-28 005 5 30 17 -26.2 -30.5 29.20 21 29 74 240 -008 84102122 -26-27-28 001 6 30 18 -25.9 -31.0 29.22 22 29 72 238 -002 78 93120 -26-27-28 000 7 30 19 -25.6 -30.3 29.20 20 33 83 250 -001 81100109 -26-27-29 002 8 30 20 -25.9 -30.7 29.21 20 35 86 253 -005 80 94 96 -26-28-28 001 9 30 21 -25.8 -30.5 29.27 14 28 78 244 002 80 95112 -26-27-28 000 10 30 22 -26.1 -30.8 29.24 21 31 78 244 008 80 95 77 -27-28-28 001 11 30 23 -25.9 -31.7 29.24 19 30 71 238 006 71 83101 -26-27-28 000 12 01 00 -26.2 -31.6 29.26 12 22 53 220 -001 73 94108 -26-27-28 000 13 01 01 -27.0 -30.8 29.28 12 25 92 258 001 84100108 -27-28-29 000 14 01 02 -27.3 -30.6 29.31 14 29 100 266 000 94102 99 -28-29-29 001 15 01 03 -28.2 -31.6 29.32 18 34 95 262 003 93101104 -29-29-29 001 16 01 04 -28.0 -31.5 29.33 18 28 83 249 002 90105111 -29-30-30 001 17 01 05 -28.1 -31.8 29.33 19 30 74 241 005 89103107 -28-29-30 000 18 01 06 -28.4 -32.5 29.34 19 28 89 256 001 86104102 -29-30-31 001 19 01 07 -29.1 -33.3 29.34 16 30 89 255 003 84102101 -29-30-30 001 20 01 08 -29.3 -33.0 29.35 21 31 78 245 -010 90 92109 -28-30-31 001 21 01 09 -29.2 -33.4 29.37 18 33 87 254 000 87103112 -30-31-32 004 22 01 10 -28.8 -33.0 29.39 19 31 83 249 000 87107123 -30-31-32 005 23 01 11 -29.2 -33.4 29.40 18 32 96 263 010 89111114 -30-31-32 003 24 01 12 -29.1 -33.2 29.42 19 34 104 271 012 89108110 -30-31-32 002 25 01 13 -28.9 -33.1 29.42 18 30 92 259 007 88107104 -29-30-31 002 26 01 14 -28.8 -33.1 29.41 19 30 74 241 004 87102 95 -29-30-30 001 27 01 15 -28.1 -32.8 29.39 18 29 71 238 000 83100 94 -28-30-30 000 28 01 16 -27.3 -32.4 29.39 17 29 79 246 -005 79 91 93 -28-29-30 000 29 01 17 -27.0 -31.6 29.38 18 27 67 233 -002 83 86 93 -27-28-29 000 30 01 18 -27.7 -33.0 29.37 20 25 69 235 -005 77 84 88 -27-28-28 000 31 01 19 -26.5 -32.3 29.35 16 26 66 232 -003 72 76 84 -26-27-28 000 32 01 20 -26.6 -31.4 29.34 14 23 63 229 003 77 70 81 -26-27-28 000 33 01 21 -27.2 -31.8 29.33 14 18 50 216 001 78 66 75 -25-27-28 000 34 01 22 -27.1 -32.8 29.32 11 15 54 221 004 66 61 68 -25-26-27 000 35 01 23 -29.9 -33.3 29.31 11 14 65 232 000 90 59 65 -24-26-27 000 36 02 00 -30.6 -35.9 29.30 12 13 56 223 002 74 60 54 -25-26-27 000 37 02 01 -30.8 -35.3 29.29 10 11 61 228 001 75 56 48 -25-26-27 000 38 02 02 -31.7 -35.5 29.28 9 10 74 240 004 74 52 38 -26-26-26 000 39 02 03 -31.8 -33.8 29.27 9 9 68 235 006 87 44 38 -26-25-25 000 40 02 04 -31.0 -34.5 29.25 11 11 58 224 003 78 36 35 -25-25-25 000 41 02 05 -29.8 -34.7 29.24 7 7 49 215 003 65 36 33 -25-25-25 000 42 02 06 -28.5 -34.7 29.23 1 1 310 117 002 63 33 33 -26-24-25 000 43 02 07 -29.5 -33.7 29.22 2 3 74 241 -001 77 30 33 -25-24-25 000 44 02 08 -29.4 -33.8 29.21 2 3 64 231 000 75 34 37 -25-25-25 000 45 02 09 -28.4 -33.9 29.20 3 3 68 234 002 66 29 39 -24-24-25 000 46 02 10 -28.4 -33.4 29.19 1 2 79 246 002 69 34 40 -24-24-25 000 47 02 11 -28.4 -33.2 29.17 0 2 29 195 002 70 35 34 -24-23-24 000 48 02 12 -28.4 -31.7 29.16 2 4 319 125 000 82 32 33 -24-23-24 000 49 02 13 -28.3 -29.6 29.15 3 3 332 139 000 99 33 30 -23-23-24 000 50 02 14 -27.7 -30.3 29.15 1 1 327 133 000 86 29 28 -23-23-24 000 51 02 15 -25.9 -30.2 29.14 1 2 328 134 002 71 25 29 -23-23-24 000 52 02 16 -26.3 -31.3 29.13 3 3 310 117 001 67 24 29 -23-23-24 000 53 02 17 -28.7 -33.4 29.12 7 7 330 137 000 64 24 28 -23-22-23 000 54 02 18 -31.1 -36.4 29.11 9 9 340 147 001 61 24 28 -22-22-23 000 55 02 19 -29.8 -35.0 29.10 9 9 334 141 000 60 22 25 -22-22-23 000 56 02 20 -28.1 -37.0 29.09 6 6 329 136 000 45 23 27 -22-22-23 000 57 02 21 -26.5 -37.8 29.08 4 4 334 140 000 39 23 28 -22-22-23 000 58 02 22 -26.9 -37.8 29.07 0 0 329 136 000 40 23 27 -21-22-23 000 59 02 23 -23.9 -39.1 29.06 4 4 356 163 001 25 23 25 -20-21-22 000 60 03 00 -22.8 -39.1 29.04 4 9 18 184 -001 23 22 30 -20-21-22 000 61 03 01 -22.5 -38.2 29.04 2 2 37 204 002 24 24 34 -20-21-21 000 62 03 02 -20.6 -36.9 29.02 5 10 24 190 002 23 23 60 -19-20-20 000 63 03 03 -20.0 -37.1 29.00 5 10 38 205 002 21 32 65 -19-19-19 000 64 03 04 -19.0 -31.9 28.98 5 10 30 196 002 32 38 70 -18-19-18 000 65 03 05 -18.6 -30.6 28.96 6 11 5 172 004 34 43 74 -17-17-18 000 66 03 06 -19.6 -29.3 28.94 6 11 20 187 -002 44 38 75 -16-18-18 000 67 03 07 -21.9 -29.7 28.92 11 26 11 178 -002 43 44 83 -15-16-17 000 68 03 08 -19.5 -25.5 28.91 10 21 34 201 -004 51 52 89 -15-16-17 000 69 03 09 -17.3 -24.3 28.88 11 22 42 209 000 54 54 81 -14-16-17 000 70 03 10 -16.7 -22.5 28.85 12 25 47 214 001 62 55 82 -14-15-16 000 71 03 11 -15.7 -22.1 28.84 12 19 55 222 -003 61 52 78 -14-15-16 000 72 03 12 -14.5 -21.4 28.83 14 24 57 224 000 60 56 81 -14-14-15 000 73 03 13 -13.9 -20.2 28.80 17 26 84 251 -004 65 53 68 -14-14-15 000 74 03 14 -14.4 -19.7 28.82 14 17 70 237 -003 70 53 82 -13-14-15 000 75 03 15 -13.4 -18.0 28.78 19 33 98 265 002 75 59 62 -13-14-14 000 76 03 16 -13.6 -17.7 28.79 22 36 128 294 -003 79 61 65 -13-13-14 000 77 03 17 -13.4 -17.7 28.79 22 31 154 321 -024 78 65 66 -13-14-14 000 78 03 18 -13.3 -17.5 28.82 35 57 163 329 -023 78 86 64 -14-15-15 000 79 03 19 -13.5 -17.8 28.78 38 51 163 330 -010 78 84 53 -14-15-12 000 80 03 20 -14.2 -18.9 28.82 39 51 177 344 009 77 72 89 -15-15-16 000 81 03 21 -15.8 -19.2 28.87 23 42 139 305 -168 86 98114 -16-17-18 000 82 03 22 -20.7 -24.0 28.91 29 34 95 262 018 91103122 -21-21-21 008 83 03 23 -23.5 -26.9 28.95 30 36 98 265 025 93102109 -23-23-23 023 84 04 00 -25.0 -28.8 28.99 28 33 94 261 -019 91101107 -25-25-24 017 85 04 01 -25.8 -29.4 29.02 28 32 90 257 -021 93102103 -25-24-23 032 86 04 02 -25.4 -28.9 29.04 28 32 87 254 -014 93102103 -24-24-23 026 87 04 03 -24.8 -28.3 29.06 27 32 89 256 -010 93101103 -24-23-23 027 88 04 04 -24.7 -27.9 29.09 24 29 88 254 010 95 97106 -22-23-23 022 89 04 05 -24.7 -27.9 29.10 24 27 75 242 009 95 96105 -23-22-22 031 90 04 06 -23.8 -27.0 29.12 25 30 76 243 004 94 98105 -23-21-21 038 91 04 07 -22.8 -26.0 29.13 25 30 76 243 -005 93 99104 -22-21-20 026 92 04 08 -22.5 -25.6 29.15 25 30 74 240 -004 93100104 -21-20-19 014 93 04 09 -21.7 -25.0 29.18 25 29 74 240 -004 91101102 -21-20-19 005 94 04 10 -21.5 -25.3 29.20 25 28 74 241 -003 88100 99 -21-19-18 003 95 04 11 -20.7 -24.3 29.22 24 29 75 242 003 88 98100 -20-19-18 010 96 04 12 -20.2 -23.5 29.23 24 28 72 239 002 90 97 97 -20-18-18 011 97 04 13 -20.5 -23.5 29.24 23 28 66 232 019 93 97 98 -18-18-18 009 98 04 14 -20.1 -22.9 29.26 19 24 69 235 011 94 96105 -17-17-17 004 99 04 15 -19.7 -22.0 29.27 17 22 70 237 011 97 94105 -16-17-17 006 100 04 16 -18.0 -20.4 29.29 16 25 65 232 001 95 93107 -16-16-17 003 101 04 17 -16.2 -18.9 29.30 16 25 62 228 -006 90 95117 -15-16-17 002 102 04 18 -15.1 -18.1 29.32 16 28 65 232 -007 86 98112 -15-16-17 002 103 04 19 -14.4 -17.6 29.33 16 29 68 235 -010 85101119 -15-16-17 002 104 04 20 -14.6 -17.6 29.37 15 38 89 255 -010 87 99 98 -15-16-17 002 105 04 21 -15.2 -17.5 29.40 8 30 90 257 001 92 98107 -16-16-17 004 106 04 22 -15.4 -17.7 29.41 13 24 71 237 -018 93102108 -15-16-17 002 107 04 23 -15.0 -18.1 29.41 17 30 67 234 -009 86 92100 -15-15-16 000 108 05 00 -15.1 -17.4 29.41 18 25 68 235 -002 91 96 95 -15-15-16 000 109 05 01 -14.9 -18.0 29.41 20 23 53 220 -006 85 90 93 -14-15-16 000 110 05 02 -14.6 -17.8 29.41 17 32 67 234 -006 84 95 80 -14-15-16 000 111 05 03 -15.0 -17.1 29.41 18 31 79 246 014 92 99 85 -15-16-17 000 112 05 04 -15.6 -17.6 29.43 18 27 92 259 -010 95105101 -16-16-16 000 113 05 05 -15.4 -18.2 29.43 16 28 83 249 -007 90109120 -16-17-17 003 114 05 06 -14.7 -18.0 29.42 16 23 68 235 006 86106103 -15-17-17 003 115 05 07 -14.7 -17.4 29.42 16 23 70 237 002 90101102 -15-16-17 009 116 05 08 -14.6 -17.0 29.42 15 16 65 232 004 92 98107 -15-16-16 020 117 05 09 -14.3 -17.1 29.41 15 17 53 220 000 89 97102 -15-16-17 021 118 05 10 -14.5 -17.1 29.39 13 16 43 210 -002 88 93 92 -14-15-17 011 119 05 11 -15.0 -18.1 29.38 11 13 39 206 002 81 90 94 -14-15-16 003 120 05 12 -16.1 -18.5 29.36 10 11 32 199 -003 77 85 92 -13-15-16 001 * 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.