USAP Cape Hallett (CPH) site lat/lon = (-72.3167,170.2667) cell lat/lon = (-72.3073,170.2876) Forecast initialized at 2026-05-03/00 UTC MPAS cell scale: 2.5 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 00 -23.3 -28.0 29.09 4 4 254 64 013 80 88 99 -23-24-25 000 1 03 01 -22.6 -25.6 29.09 6 7 128 298 002 94 93 95 -23-24-25 004 2 03 02 -23.7 -26.5 29.08 6 9 142 312 002 99 85 97 -23-24-25 001 3 03 03 -23.4 -27.2 29.08 5 7 149 319 001 85 92 96 -22-24-25 000 4 03 04 -23.7 -27.0 29.08 3 8 144 315 000 89 94 95 -22-24-25 000 5 03 05 -23.1 -26.8 29.07 1 8 208 19 000 86 73 92 -23-24-25 000 6 03 06 -22.4 -26.0 29.08 1 9 250 61 000 87 82 91 -23-24-24 000 7 03 07 -22.4 -25.5 29.08 0 9 201 11 000 91 85 89 -23-24-24 000 8 03 08 -22.8 -25.5 29.05 2 8 276 86 001 95 90 91 -23-24-25 000 9 03 09 -22.5 -25.3 29.06 4 8 303 113 -001 95 93 93 -23-24-25 000 10 03 10 -22.6 -25.8 29.07 4 8 299 109 -001 91 98 94 -22-24-25 001 11 03 11 -22.7 -25.7 29.07 4 8 302 112 001 93 97 96 -22-24-25 001 12 03 12 -22.6 -25.7 29.08 3 7 294 104 000 91 96 95 -22-24-24 001 13 03 13 -22.6 -25.5 29.07 4 6 283 93 -001 94 93 95 -22-23-24 001 14 03 14 -22.8 -25.5 29.06 4 5 283 93 -002 94 91 94 -22-23-24 001 15 03 15 -22.6 -24.5 29.06 2 4 259 70 -001 94 88 92 -22-23-24 000 16 03 16 -23.0 -25.5 29.05 2 4 199 9 000 89 83 95 -22-23-23 000 17 03 17 -23.0 -27.5 29.05 1 5 189 359 000 76 87 97 -22-23-23 000 18 03 18 -23.3 -26.9 29.06 0 4 256 66 000 80 88 98 -22-22-23 000 19 03 19 -22.8 -26.2 29.06 0 5 231 41 001 85 90 98 -22-22-23 001 20 03 20 -21.9 -25.2 29.07 0 6 197 8 -001 90 93 97 -22-22-23 002 21 03 21 -21.7 -24.6 29.07 2 6 279 89 000 94 95 96 -22-22-23 005 22 03 22 -21.2 -23.7 29.07 3 5 280 90 -001 99 95 96 -21-22-22 006 23 03 23 -20.9 -23.4 29.08 2 7 272 82 000 98 98 96 -21-22-22 009 24 04 00 -20.6 -23.0 29.10 0 8 247 58 -002 98 99 97 -21-22-22 011 25 04 01 -20.5 -22.8 29.12 0 7 290 100 000 99 99 97 -21-21-22 010 26 04 02 -20.3 -22.6 29.13 3 8 297 107 000 101103 98 -21-21-22 010 27 04 03 -20.5 -22.7 29.14 3 8 289 99 000 100104 97 -20-21-22 011 28 04 04 -20.8 -22.9 29.16 4 5 284 94 000 102102 98 -20-21-22 008 29 04 05 -21.6 -23.4 29.17 5 5 283 94 -001 103 99 97 -20-21-21 004 30 04 06 -21.9 -23.5 29.18 5 6 283 93 000 106 96 95 -20-20-21 002 31 04 07 -21.4 -23.0 29.18 4 5 284 95 000 105 94 91 -20-20-21 001 32 04 08 -20.6 -22.4 29.18 3 4 289 99 001 103 92 90 -19-20-20 000 33 04 09 -19.9 -21.8 29.19 3 3 290 100 000 101 92 90 -19-20-20 000 34 04 10 -19.5 -21.2 29.21 2 2 299 109 000 100 92 93 -19-20-20 001 35 04 11 -19.5 -21.4 29.23 0 1 36 206 000 98 96 96 -19-20-20 003 36 04 12 -19.7 -21.7 29.25 0 3 66 236 000 98 96 98 -19-20-20 005 37 04 13 -19.8 -21.9 29.26 0 3 139 309 000 98 95 99 -19-20-20 006 38 04 14 -19.8 -21.9 29.27 0 0 21 191 -001 98 96100 -19-19-20 008 39 04 15 -19.7 -21.9 29.28 0 1 322 133 000 97 96 98 -19-19-20 007 40 04 16 -19.8 -22.1 29.29 1 1 86 257 000 98 98 98 -19-19-20 008 41 04 17 -19.8 -22.1 29.30 2 2 104 274 000 98 99 99 -19-19-20 010 42 04 18 -19.7 -22.1 29.31 2 2 115 286 -001 98 98 99 -19-19-19 011 43 04 19 -19.6 -22.0 29.32 2 2 121 292 -001 97 98100 -19-19-19 012 44 04 20 -19.5 -22.0 29.33 2 3 134 304 -001 96 97 99 -19-19-19 012 45 04 21 -19.4 -21.9 29.34 2 3 133 303 -001 96 97 99 -18-19-19 011 46 04 22 -19.4 -21.8 29.36 1 2 127 297 -001 97 97 99 -18-18-19 009 47 04 23 -19.3 -21.5 29.38 1 2 123 294 -001 97 96 98 -18-18-19 006 48 05 00 -19.2 -21.3 29.40 0 1 77 248 000 97 94101 -18-18-18 004 49 05 01 -19.4 -21.7 29.42 2 3 303 114 000 98 93101 -18-17-18 004 50 05 02 -19.8 -21.9 29.43 3 5 301 111 000 100 94 99 -17-17-18 006 51 05 03 -20.9 -21.4 29.44 3 6 311 121 -003 105 94 92 -17-17-18 003 52 05 04 -20.1 -20.8 29.46 4 5 315 125 003 111 87 88 -16-16-17 000 53 05 05 -19.0 -19.5 29.47 5 6 294 104 040 85 63 81 -14-15-16 000 54 05 06 -16.4 -21.3 29.47 12 17 180 351 052 61 47 77 -12-13-15 000 55 05 07 -12.5 -21.9 29.47 19 24 200 10 026 46 42 68 -11-12-14 000 56 05 08 -12.9 -20.8 29.48 19 21 198 8 013 50 49 72 -11-13-14 000 57 05 09 -14.5 -22.1 29.48 14 15 210 21 021 50 44 72 -10-12-14 000 58 05 10 -16.0 -27.0 29.48 11 11 206 16 010 44 44 68 -11-12-13 000 59 05 11 -17.1 -29.6 29.48 9 9 202 12 015 42 44 75 -11-12-14 000 60 05 12 -12.7 -23.3 29.48 19 24 226 36 011 40 50 58 -11-13-14 000 61 05 13 -14.2 -23.0 29.48 16 22 243 53 035 46 39 59 -12-13-14 000 62 05 14 -16.0 -23.5 29.50 13 15 164 335 -001 56 63 74 -13-14-16 000 63 05 15 -20.8 -21.1 29.49 9 11 146 317 000 88 73 71 -15-15-16 000 64 05 16 -20.2 -23.5 29.47 7 7 179 350 -001 62 64 79 -15-15-16 000 65 05 17 -21.7 -24.4 29.44 6 6 259 69 -001 86 71 83 -16-16-16 000 66 05 18 -22.0 -22.0 29.41 5 5 272 82 -001 105 78 70 -17-17-17 000 67 05 19 -20.8 -24.4 29.37 8 8 257 68 -001 86 79 72 -16-16-16 000 68 05 20 -21.3 -21.3 29.34 5 5 279 89 -001 95 80 58 -16-16-16 000 69 05 21 -22.5 -22.5 29.31 3 5 285 96 002 108 90 56 -17-17-16 000 70 05 22 -22.4 -25.9 29.28 4 4 273 83 001 99 71 53 -17-16-16 000 71 05 23 -21.5 -22.1 29.26 4 4 282 92 002 110 59 51 -17-15-16 000 72 06 00 -21.9 -22.9 29.23 4 5 289 99 000 115 61 49 -16-16-16 000 73 06 01 -23.5 -23.5 29.20 4 4 296 107 000 113 65 50 -16-16-16 000 74 06 02 -25.3 -25.3 29.17 2 3 316 127 000 109 70 49 -16-16-16 000 75 06 03 -24.4 -28.5 29.14 1 1 268 78 001 92 69 50 -17-16-16 000 76 06 04 -22.4 -29.2 29.11 1 3 194 4 001 76 64 51 -17-16-16 000 77 06 05 -20.5 -24.0 29.08 5 5 173 343 000 73 67 52 -16-16-16 000 78 06 06 -18.7 -19.3 29.06 9 9 154 324 000 119 70 52 -17-16-16 000 79 06 07 -18.8 -19.4 29.05 12 12 155 325 000 119 76 55 -17-17-17 000 80 06 08 -18.4 -18.9 29.04 11 12 156 327 -001 119 82 59 -17-17-17 000 81 06 09 -18.7 -19.3 29.03 12 12 158 328 000 119 77 62 -17-17-17 000 82 06 10 -18.7 -19.3 29.03 12 12 156 327 000 119109 70 -17-18-18 000 83 06 11 -18.5 -18.9 29.03 10 10 151 321 002 119121 74 -18-19-19 000 84 06 12 -19.5 -19.9 29.03 12 14 138 309 000 121121 98 -19-19-20 000 85 06 13 -20.3 -20.9 29.02 10 15 128 299 002 121113124 -20-19-19 000 86 06 14 -20.5 -21.1 29.00 6 10 140 310 000 122113124 -20-20-20 002 87 06 15 -22.7 -22.7 29.00 2 8 178 349 -001 100119117 -20-21-21 002 88 06 16 -23.7 -23.7 28.98 1 7 190 1 000 104118114 -21-21-22 002 89 06 17 -25.2 -25.2 28.96 6 12 153 324 000 115106106 -21-21-22 001 90 06 18 -24.2 -24.2 28.94 5 8 259 69 000 96 57 70 -20-21-22 000 91 06 19 -25.0 -25.0 28.93 6 6 266 76 -001 123 52 72 -20-21-22 000 92 06 20 -24.0 -25.2 28.92 9 9 269 80 -001 122 60 69 -21-21-22 000 93 06 21 -24.6 -27.6 28.91 7 8 255 66 -001 104 61 65 -21-22-22 000 94 06 22 -24.4 -30.2 28.89 6 7 253 63 000 80 51 63 -20-21-22 000 95 06 23 -24.1 -36.2 28.87 5 5 231 41 -001 45 47 60 -20-21-21 000 96 07 00 -23.8 -35.3 28.85 5 6 246 57 000 47 46 59 -20-20-21 000 97 07 01 -23.4 -29.2 28.83 7 8 254 64 000 52 41 59 -19-19-20 000 98 07 02 -23.1 -34.7 28.81 7 8 249 60 -001 48 42 65 -19-19-20 000 99 07 03 -22.7 -28.7 28.79 8 10 256 67 -002 50 49 60 -18-19-19 000 100 07 04 -22.2 -32.7 28.78 9 10 260 70 -003 51 63 53 -18-18-19 000 101 07 05 -22.9 -32.1 28.78 7 8 276 86 -006 61 47 52 -18-18-18 000 102 07 06 -23.1 -31.1 28.78 6 7 275 85 -010 68 46 58 -18-17-18 000 103 07 07 -22.4 -32.7 28.78 4 4 261 72 -005 59 45 59 -17-17-18 000 104 07 08 -21.4 -38.5 28.78 4 4 212 22 -005 39 45 55 -16-17-17 000 105 07 09 -21.3 -41.5 28.79 5 5 207 17 -004 33 33 47 -15-16-17 000 106 07 10 -21.4 -37.2 28.79 5 6 234 44 -006 43 34 48 -16-16-17 000 107 07 11 -20.2 -44.5 28.79 8 8 219 29 003 28 48 49 -15-16-17 000 108 07 12 -20.2 -39.2 28.80 9 9 244 55 012 33 38 46 -15-16-17 000 109 07 13 -18.5 -29.8 28.79 12 13 215 25 006 41 30 47 -13-14-16 000 110 07 14 -17.3 -27.3 28.79 13 14 180 351 007 37 31 49 -13-14-16 000 111 07 15 -18.8 -33.6 28.80 11 11 176 346 004 37 35 51 -14-15-16 000 112 07 16 -19.6 -42.1 28.81 7 7 160 330 013 33 36 55 -14-15-16 000 113 07 17 -19.6 -37.7 28.81 8 8 170 340 010 37 37 54 -14-15-16 000 114 07 18 -19.3 -34.1 28.81 9 9 166 336 003 36 35 54 -13-14-15 000 115 07 19 -19.0 -33.9 28.82 7 7 169 339 002 35 35 56 -13-14-15 000 116 07 20 -19.5 -26.6 28.82 3 6 171 341 -001 37 36 56 -13-14-15 000 117 07 21 -19.3 -26.6 28.82 4 7 202 12 -003 39 39 55 -13-14-15 000 118 07 22 -18.6 -32.9 28.83 8 9 198 9 -007 38 36 59 -12-13-14 000 119 07 23 -18.1 -32.5 28.83 8 8 193 3 -008 38 39 62 -12-13-14 000 120 08 00 -16.2 -26.9 28.83 8 8 200 10 003 44 40 64 -12-13-14 000 * 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.