USAP Cape Hallett (CPH) site lat/lon = (-72.3167,170.2667) cell lat/lon = (-72.3073,170.2876) Forecast initialized at 2026-05-03/12 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 12 -22.5 -26.5 29.06 4 4 253 64 017 85 91 99 -22-23-24 000 1 03 13 -23.0 -25.9 29.03 5 5 157 327 008 84 86 94 -21-23-24 001 2 03 14 -23.6 -25.1 29.04 3 7 168 339 002 97 83 92 -22-23-24 001 3 03 15 -22.4 -25.5 29.05 2 9 314 125 001 93 83 99 -22-23-24 000 4 03 16 -21.7 -24.6 29.04 4 10 283 93 000 94 88 97 -22-23-24 001 5 03 17 -21.0 -23.9 29.05 5 8 277 87 -002 93 94 98 -22-23-24 003 6 03 18 -20.8 -23.5 29.06 3 9 280 91 -001 96102 98 -21-23-23 008 7 03 19 -20.9 -23.4 29.06 2 9 298 108 -001 98104 99 -22-23-23 011 8 03 20 -21.0 -23.5 29.06 2 10 280 90 -001 98102 98 -21-22-23 008 9 03 21 -21.1 -23.6 29.09 4 10 277 87 -003 97 99100 -21-22-23 005 10 03 22 -21.0 -23.5 29.10 5 10 278 88 -001 99 98101 -21-22-23 003 11 03 23 -21.1 -23.4 29.12 5 11 272 83 000 102 99 97 -21-22-22 002 12 04 00 -21.0 -23.4 29.11 6 9 281 92 000 101 97 97 -21-21-22 002 13 04 01 -20.6 -23.0 29.13 7 9 284 94 000 100 96 97 -20-21-22 001 14 04 02 -20.9 -23.4 29.13 6 7 281 91 000 99 96 95 -20-21-22 001 15 04 03 -21.0 -23.5 29.14 6 8 282 92 000 98 95 95 -20-21-21 001 16 04 04 -20.2 -22.8 29.16 5 6 282 92 -001 96 93 95 -19-20-21 001 17 04 05 -19.9 -22.5 29.16 5 6 284 94 -001 96 93 95 -19-20-21 002 18 04 06 -19.5 -22.0 29.17 5 9 284 95 -001 97 96 95 -19-20-21 003 19 04 07 -19.2 -21.6 29.18 5 9 287 98 -001 97 98 95 -19-20-21 003 20 04 08 -18.9 -21.2 29.19 3 9 285 95 -002 98100 95 -19-20-21 005 21 04 09 -18.8 -20.8 29.20 3 7 295 105 -002 100100 95 -19-20-21 008 22 04 10 -18.6 -20.5 29.20 2 7 302 113 -002 101102 96 -19-20-21 011 23 04 11 -18.6 -19.9 29.20 0 8 349 159 -002 102102 97 -19-20-21 017 24 04 12 -18.7 -20.2 29.22 0 7 66 236 -001 101101 96 -19-20-21 020 25 04 13 -18.8 -20.6 29.23 0 6 120 290 -003 99101 98 -19-20-21 020 26 04 14 -18.8 -20.8 29.23 0 7 175 345 -004 97100 98 -19-20-21 019 27 04 15 -18.7 -20.7 29.24 1 7 213 23 000 97101 98 -19-20-20 017 28 04 16 -18.5 -20.3 29.24 1 7 236 46 001 99103 98 -19-20-20 017 29 04 17 -18.5 -20.1 29.25 0 7 306 117 000 100104 98 -19-19-20 017 30 04 18 -18.5 -20.2 29.25 2 9 309 119 -001 101103 99 -19-19-20 015 31 04 19 -18.2 -20.2 29.25 3 8 297 108 -004 102104100 -18-19-19 015 32 04 20 -18.0 -20.0 29.26 3 8 305 115 -004 101103102 -18-19-19 021 33 04 21 -17.8 -19.8 29.27 4 9 305 115 -004 102104103 -18-19-19 028 34 04 22 -17.6 -19.5 29.28 5 9 299 110 -006 102104102 -18-18-19 031 35 04 23 -17.4 -19.4 29.29 5 9 293 103 -006 102103102 -17-18-19 031 36 05 00 -17.1 -19.0 29.31 5 7 296 107 -005 102103103 -17-18-19 027 37 05 01 -16.8 -18.7 29.34 5 6 299 110 -004 102101104 -17-18-18 022 38 05 02 -16.7 -18.6 29.36 5 6 305 115 -004 102102105 -17-18-18 021 39 05 03 -16.8 -18.7 29.37 6 8 306 116 -002 102102104 -16-17-18 018 40 05 04 -17.1 -19.0 29.39 7 8 323 133 -003 102101 99 -16-17-18 010 41 05 05 -17.2 -19.1 29.41 8 9 323 134 -005 102 98 96 -16-17-18 005 42 05 06 -18.8 -20.6 29.42 7 9 337 148 -008 102 95 95 -16-17-17 001 43 05 07 -19.0 -20.4 29.44 7 9 342 153 -006 108 92 90 -16-16-17 000 44 05 08 -20.0 -20.0 29.45 7 9 342 152 000 111 91 87 -15-16-17 000 45 05 09 -21.3 -21.3 29.46 4 8 4 174 000 115 87 81 -15-16-16 000 46 05 10 -21.5 -21.5 29.47 3 4 139 310 010 91 87 76 -15-16-16 000 47 05 11 -19.9 -25.6 29.46 8 13 164 334 043 72 57 66 -13-14-15 000 48 05 12 -18.8 -21.9 29.46 12 13 173 343 032 77 52 66 -13-13-14 000 49 05 13 -17.7 -22.8 29.44 10 12 198 9 039 53 42 63 -12-13-14 000 50 05 14 -16.8 -24.4 29.44 11 15 245 55 009 43 39 56 -12-13-14 000 51 05 15 -15.2 -23.6 29.43 15 18 262 72 004 48 40 57 -12-13-14 000 52 05 16 -16.8 -24.6 29.42 12 13 254 65 -005 55 52 56 -13-14-15 000 53 05 17 -16.8 -28.9 29.40 12 12 236 46 -002 37 53 54 -13-14-15 000 54 05 18 -18.5 -26.3 29.37 7 10 253 64 -004 39 52 60 -13-15-15 000 55 05 19 -18.0 -30.2 29.34 8 9 232 42 -003 42 61 63 -13-14-15 000 56 05 20 -18.1 -27.7 29.31 8 11 223 33 000 52 66 62 -14-15-15 000 57 05 21 -17.9 -27.4 29.28 9 11 204 14 000 53 58 60 -13-14-15 000 58 05 22 -18.3 -23.1 29.26 6 9 173 343 001 50 53 59 -14-14-15 000 59 05 23 -21.5 -26.6 29.23 5 5 163 333 -004 67 53 56 -14-15-16 000 60 06 00 -19.4 -27.9 29.21 9 13 162 332 001 55 55 50 -15-15-15 000 61 06 01 -18.3 -24.2 29.18 8 9 182 353 000 47 54 60 -15-15-15 000 62 06 02 -17.1 -22.9 29.14 12 12 177 347 -001 54 60 62 -14-16-16 000 63 06 03 -17.2 -20.8 29.12 13 14 160 330 -001 73 62 63 -15-16-16 000 64 06 04 -17.4 -19.3 29.10 16 17 158 328 -001 93 76 63 -16-16-17 000 65 06 05 -17.1 -19.0 29.09 17 17 161 331 000 102 78 62 -17-17-17 000 66 06 06 -17.7 -18.7 29.08 14 18 167 338 000 113103 65 -17-17-18 000 67 06 07 -16.4 -16.9 29.07 11 14 162 333 000 117119 71 -17-18-19 000 68 06 08 -16.6 -17.0 29.06 10 10 165 336 -001 117119 92 -17-18-19 000 69 06 09 -18.6 -19.4 29.05 8 8 139 310 -003 115119 99 -18-18-20 001 70 06 10 -19.5 -20.9 29.05 7 7 143 313 000 109120 78 -17-19-20 001 71 06 11 -21.6 -23.5 29.04 9 9 146 317 000 107114 84 -18-18-20 000 72 06 12 -23.1 -24.7 29.03 9 11 143 313 000 112107 84 -18-19-20 000 73 06 13 -23.0 -25.2 29.02 8 9 149 319 -002 104105 92 -19-19-20 000 74 06 14 -22.9 -23.6 29.01 2 8 145 315 000 107100100 -19-19-20 000 75 06 15 -23.4 -25.2 28.99 3 3 286 96 000 110 98105 -20-19-20 000 76 06 16 -21.4 -23.3 28.97 2 7 244 54 000 99 96113 -20-20-20 000 77 06 17 -19.5 -23.3 28.94 9 14 166 336 -001 83 79112 -19-19-20 000 78 06 18 -19.0 -24.6 28.93 17 22 154 325 -001 68 67 93 -19-20-21 000 79 06 19 -19.1 -23.6 28.91 15 20 153 323 000 78 75100 -19-20-21 002 80 06 20 -19.6 -22.7 28.91 7 10 164 335 000 91 89108 -20-20-21 003 81 06 21 -19.7 -21.8 28.89 1 7 253 63 000 98 97108 -20-21-21 004 82 06 22 -19.5 -21.5 28.88 1 9 326 136 000 100 98106 -20-21-21 006 83 06 23 -19.7 -22.0 28.86 2 12 130 300 001 97 92103 -20-20-21 006 84 07 00 -19.5 -22.6 28.84 7 13 158 328 000 91 90101 -20-20-21 003 85 07 01 -19.7 -22.7 28.83 3 10 176 347 002 91 88 97 -19-20-21 001 86 07 02 -19.4 -21.3 28.81 6 6 290 100 002 105 88 97 -19-20-20 001 87 07 03 -19.4 -21.2 28.80 5 6 287 98 002 106 87100 -19-19-20 002 88 07 04 -19.4 -21.2 28.80 4 4 291 102 005 106 86 98 -18-19-19 002 89 07 05 -19.7 -21.3 28.80 4 6 296 106 004 106 83 89 -18-19-19 000 90 07 06 -19.7 -21.5 28.79 5 9 301 112 000 104 83 79 -18-19-19 000 91 07 07 -19.6 -21.8 28.80 5 10 294 104 002 98 82 78 -18-18-19 000 92 07 08 -19.3 -22.2 28.80 5 8 298 108 -008 90 81 88 -17-18-19 000 93 07 09 -19.0 -21.4 28.81 7 8 319 129 -003 98 75 87 -17-18-19 000 94 07 10 -18.9 -21.3 28.82 6 8 312 122 -005 97 74 83 -17-17-18 000 95 07 11 -19.0 -21.4 28.84 6 8 321 131 -007 96 69 80 -16-17-18 000 96 07 12 -19.0 -21.0 28.85 6 7 320 130 -005 100 62 74 -16-17-18 000 97 07 13 -18.1 -20.6 28.85 6 7 309 120 -001 94 55 76 -15-16-17 000 98 07 14 -17.4 -21.8 28.85 4 4 306 116 000 73 53 74 -14-16-17 000 99 07 15 -16.5 -22.8 28.85 2 7 275 85 004 55 52 73 -14-15-16 000 100 07 16 -16.1 -24.0 28.86 1 8 200 10 008 47 51 76 -13-15-16 000 101 07 17 -15.8 -24.1 28.87 1 7 151 321 008 46 57 81 -13-15-16 000 102 07 18 -15.8 -23.8 28.88 1 5 175 345 006 47 63 88 -14-15-16 000 103 07 19 -15.9 -23.4 28.89 2 4 163 333 003 48 68 94 -14-15-16 000 104 07 20 -17.0 -21.0 28.89 1 4 311 122 003 63 72 89 -14-15-16 000 105 07 21 -17.4 -21.6 28.90 5 7 299 109 001 73 67 84 -14-15-16 000 106 07 22 -17.3 -20.7 28.90 9 10 296 106 000 86 65 82 -14-15-15 000 107 07 23 -17.5 -24.4 28.90 7 9 282 92 -001 59 63 81 -13-14-15 000 108 08 00 -18.8 -21.8 28.90 4 6 276 87 -001 61 60 82 -13-14-15 000 109 08 01 -19.9 -20.8 28.91 1 2 309 119 -003 72 56 81 -13-14-15 000 110 08 02 -19.7 -23.0 28.90 5 5 157 327 -001 76 54 77 -12-13-15 000 111 08 03 -18.8 -26.2 28.91 8 8 157 327 000 61 53 80 -12-13-15 000 112 08 04 -15.5 -21.2 28.91 11 11 176 346 000 57 60 88 -12-13-15 000 113 08 05 -16.6 -22.5 28.91 9 9 159 329 002 66 77 96 -13-14-15 000 114 08 06 -19.5 -20.5 28.93 10 10 140 310 000 99 89 93 -15-15-16 000 115 08 07 -20.0 -21.6 28.92 5 6 169 340 -002 76 75 78 -16-15-16 000 116 08 08 -19.0 -21.4 28.92 3 4 196 6 000 73 80 87 -16-16-16 000 117 08 09 -20.0 -23.1 28.92 6 6 261 72 000 89 89 80 -16-16-17 000 118 08 10 -19.1 -22.0 28.92 5 5 246 57 000 68 91 90 -16-17-17 000 119 08 11 -19.7 -23.4 28.91 3 4 234 44 001 58 80 92 -16-16-17 000 120 08 12 -19.5 -23.8 28.90 3 3 192 2 -003 53 84 97 -15-16-17 000 * 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.