USAP Cape Hallett (CPH) site lat/lon = (-72.3167,170.2667) cell lat/lon = (-72.3073,170.2876) Forecast initialized at 2025-12-21/00 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 21 00 -3.3 -6.6 29.24 3 3 31 201 -001 77 83 76 -3 -4 -5 000 1 21 01 -1.7 -5.4 29.25 4 4 42 212 000 75 85 74 -3 -4 -5 000 2 21 02 -1.6 -5.2 29.24 3 3 34 204 000 76 91 82 -3 -4 -5 000 3 21 03 -1.5 -5.2 29.25 3 3 36 207 000 75 89 78 -3 -4 -5 000 4 21 04 -1.4 -5.2 29.27 3 4 32 202 000 75 89 77 -3 -4 -5 000 5 21 05 -1.4 -5.0 29.27 3 3 23 193 -001 75 89 76 -3 -4 -5 000 6 21 06 -1.3 -4.8 29.27 2 2 27 198 000 77 92 78 -2 -4 -5 000 7 21 07 -1.2 -4.7 29.29 1 1 38 208 000 77 92 78 -2 -4 -5 000 8 21 08 -1.4 -4.6 29.31 1 2 71 241 -001 77 91 79 -2 -4 -5 000 9 21 09 -2.2 -3.9 29.29 1 3 124 295 -001 82 93 79 -2 -4 -5 000 10 21 10 -3.9 -6.2 29.32 2 2 136 306 000 87 93 87 -2 -4 -5 000 11 21 11 -4.3 -6.6 29.34 3 3 128 298 000 87 93 84 -3 -4 -5 000 12 21 12 -5.7 -7.2 29.34 2 2 136 307 000 96 93 76 -3 -4 -5 000 13 21 13 -5.2 -6.3 29.35 2 3 137 307 000 99 94 61 -3 -4 -5 000 14 21 14 -6.4 -6.5 29.37 1 3 164 334 000 99 96 68 -3 -4 -5 000 15 21 15 -5.3 -8.8 29.40 3 3 188 358 000 85 99 68 -3 -4 -5 000 16 21 16 -3.9 -7.2 29.41 3 3 191 1 000 76 94 66 -3 -4 -5 000 17 21 17 -2.5 -6.8 29.43 2 2 264 75 000 64 87 62 -3 -4 -4 000 18 21 18 -2.7 -4.6 29.42 5 5 290 100 -001 84 75 60 -3 -3 -4 000 19 21 19 -2.2 -4.0 29.43 6 6 298 108 -007 88 60 42 -2 -3 -3 000 20 21 20 -1.8 -3.2 29.46 6 6 313 124 -009 91 58 30 -2 -3 -3 000 21 21 21 -1.6 -2.9 29.47 6 6 322 132 -011 92 53 24 -2 -2 -3 000 22 21 22 -1.3 -2.8 29.48 4 5 323 133 -006 90 57 22 -2 -2 -3 000 23 21 23 -0.9 -3.4 29.49 4 5 314 125 -004 82 54 22 -2 -2 -3 000 24 22 00 -0.6 -3.4 29.49 4 5 313 124 -003 80 52 23 -1 -2 -2 000 25 22 01 -0.4 -3.3 29.49 4 6 315 125 000 79 37 22 -1 -1 -2 000 26 22 02 -0.2 -2.8 29.50 5 6 328 138 000 80 52 17 -1 -2 -2 000 27 22 03 -0.1 -3.1 29.50 4 7 317 127 002 78 65 19 -1 -2 -2 000 28 22 04 -0.1 -2.9 29.50 5 7 274 84 000 79 49 20 -1 -1 -2 000 29 22 05 -0.0 -3.7 29.49 6 7 267 78 008 72 24 19 0 0 -1 000 30 22 06 0.7 -10.1 29.49 8 8 247 57 010 40 53 17 1 0 -1 000 31 22 07 1.0 -9.1 29.48 2 5 293 103 008 38 41 15 0 0 0 000 32 22 08 0.3 -5.3 29.46 5 6 275 86 009 48 38 11 0 0 1 000 33 22 09 -1.0 -4.9 29.45 12 14 279 89 010 65 17 12 1 2 2 000 34 22 10 -0.5 -7.6 29.43 11 13 272 83 000 45 15 12 3 3 2 000 35 22 11 -0.7 -10.3 29.42 10 12 273 83 002 32 13 7 3 4 3 000 36 22 12 -1.6 -9.7 29.42 9 10 289 99 003 41 12 7 4 4 3 000 37 22 13 -2.6 -8.4 29.43 9 10 301 111 002 56 9 7 3 5 4 000 38 22 14 -3.6 -7.5 29.43 7 9 308 118 010 70 9 9 2 5 5 000 39 22 15 -3.0 -8.8 29.43 6 7 295 106 002 58 12 11 3 5 5 000 40 22 16 0.1 -8.7 29.44 1 2 261 71 000 34 23 21 4 4 4 000 41 22 17 -2.0 -3.5 29.46 10 11 142 312 000 85 28 21 1 3 3 000 42 22 18 -0.1 -4.5 29.47 4 4 123 293 003 69 29 22 1 3 3 000 43 22 19 -0.6 -2.6 29.48 5 5 313 124 -003 86 30 19 0 2 2 000 44 22 20 -0.1 -3.3 29.49 5 5 277 87 -001 77 27 24 1 2 2 000 45 22 21 1.1 -8.0 29.49 6 6 268 78 001 44 24 27 2 3 1 000 46 22 22 1.3 -8.2 29.50 5 7 284 94 007 42 26 23 2 2 1 000 47 22 23 0.8 -5.5 29.50 5 7 301 111 001 58 26 24 2 2 1 000 48 23 00 1.5 -8.6 29.51 6 6 276 87 -011 38 23 21 2 2 1 000 49 23 01 1.7 -9.3 29.51 6 7 287 97 -009 35 26 20 3 2 1 000 50 23 02 1.6 -9.2 29.51 6 8 283 94 000 35 27 20 2 2 2 000 51 23 03 1.8 -10.4 29.50 7 8 285 95 003 31 24 19 2 2 4 000 52 23 04 1.8 -10.2 29.50 6 6 291 101 -021 31 20 20 3 4 5 000 53 23 05 2.3 -6.7 29.49 7 8 291 102 -012 41 19 20 5 6 5 000 54 23 06 1.3 -5.1 29.49 4 5 326 136 -004 54 20 21 5 6 5 000 55 23 07 2.4 -2.8 29.48 3 4 285 95 001 58 22 20 6 6 5 000 56 23 08 3.5 -3.3 29.48 3 4 243 53 016 48 24 23 6 6 5 000 57 23 09 3.4 -4.2 29.48 7 8 202 12 -002 41 20 20 7 7 5 000 58 23 10 3.3 -5.5 29.48 9 9 192 2 -002 36 19 20 7 6 5 000 59 23 11 1.7 -5.9 29.49 10 10 160 330 004 40 18 23 7 6 5 000 60 23 12 1.7 -9.3 29.50 7 7 179 349 -006 31 19 24 6 6 5 000 61 23 13 2.1 -9.5 29.50 5 6 212 22 011 31 24 31 6 6 5 000 62 23 14 0.3 -8.1 29.50 0 1 140 310 003 38 24 27 6 5 4 000 63 23 15 2.7 -11.5 29.51 4 4 220 30 003 22 27 28 5 4 3 000 64 23 16 2.7 -7.2 29.50 7 7 186 356 -003 29 29 27 5 4 3 000 65 23 17 2.1 -7.1 29.51 6 8 268 78 -015 38 28 30 4 3 2 000 66 23 18 2.1 -5.7 29.51 4 6 287 97 002 45 31 35 4 3 2 000 67 23 19 2.6 -5.2 29.51 4 4 258 68 012 45 32 37 4 3 2 000 68 23 20 2.0 -4.4 29.51 3 5 311 121 019 52 33 37 3 2 1 000 69 23 21 1.3 -3.2 29.51 7 7 288 99 -005 67 34 37 3 2 1 000 70 23 22 1.4 -3.5 29.52 4 7 297 107 005 61 35 37 3 2 0 000 71 23 23 1.7 -4.4 29.53 5 5 319 130 020 55 40 38 2 1 0 000 72 24 00 1.7 -4.7 29.53 5 7 332 143 016 54 46 37 2 1 0 000 73 24 01 1.8 -3.7 29.53 5 5 303 113 062 58 37 38 3 2 1 000 74 24 02 1.3 -3.5 29.54 4 11 133 303 088 62 34 38 3 2 1 000 75 24 03 2.8 -5.8 29.51 7 19 205 16 106 41 20 20 5 4 3 000 76 24 04 4.3 -9.9 29.51 31 37 216 27 032 30 15 17 6 4 3 000 77 24 05 4.5 -10.8 29.48 43 50 211 21 024 27 16 19 6 5 3 000 78 24 06 3.2 -8.4 29.50 41 51 204 14 -192 30 15 19 5 4 3 000 79 24 07 3.4 -11.2 29.48 45 57 206 16 -202 30 13 15 6 5 3 000 80 24 08 3.3 -9.0 29.49 42 58 209 19 -277 30 18 20 4 3 2 000 81 24 09 2.3 -8.2 29.51 41 56 208 18 -298 35 26 19 3 2 0 000 82 24 10 1.8 -7.8 29.53 31 48 217 27 -152 37 26 28 2 2 0 000 83 24 11 1.9 -8.4 29.52 40 54 204 14 -153 35 24 18 3 2 1 000 84 24 12 1.6 -8.9 29.53 37 50 204 14 -163 34 26 17 2 1 0 000 85 24 13 1.1 -8.3 29.55 31 42 196 6 -164 38 26 26 2 1 0 000 86 24 14 0.8 -9.1 29.57 28 45 189 359 -081 35 29 34 1 0 0 000 87 24 15 0.3 -8.0 29.57 32 46 193 3 -159 43 29 34 1 0 -1 000 88 24 16 0.0 -8.1 29.57 28 40 196 6 -241 43 32 43 1 0 -1 000 89 24 17 -0.1 -7.8 29.58 31 49 207 17 -213 45 41 39 0 -1 -2 000 90 24 18 -0.5 -7.9 29.58 32 48 201 12 -265 46 37 32 0 -1 -2 000 91 24 19 -0.7 -8.9 29.59 34 50 205 16 -186 43 32 32 0 -1 -3 000 92 24 20 -0.7 -8.6 29.60 33 46 206 17 -121 44 34 32 0 -2 -3 000 93 24 21 -0.3 -9.2 29.60 31 44 204 14 -168 39 29 32 0 -1 -3 000 94 24 22 0.3 -8.1 29.59 29 43 210 21 -147 43 36 32 0 -1 -2 000 95 24 23 0.2 -9.8 29.57 36 45 204 15 -198 35 25 24 0 -1 -2 000 96 25 00 0.5 -9.1 29.55 36 50 207 17 -182 38 24 19 0 0 -1 000 97 25 01 1.8 -9.7 29.54 29 44 222 32 -199 31 25 22 1 0 -1 000 98 25 02 1.8 -12.2 29.52 33 42 204 14 -207 32 21 26 1 0 0 000 99 25 03 1.8 -10.6 29.52 37 46 203 13 -170 28 19 21 1 0 0 000 100 25 04 1.8 -9.1 29.51 31 42 206 16 -173 34 21 18 1 0 0 000 101 25 05 2.0 -10.6 29.50 32 37 195 6 -048 27 17 18 2 1 0 000 102 25 06 2.3 -10.1 29.48 29 35 200 10 -022 27 20 13 2 1 0 000 103 25 07 2.3 -9.6 29.48 24 31 200 10 -099 28 21 17 3 1 0 000 104 25 08 1.9 -9.3 29.47 25 32 203 13 -082 31 21 20 2 1 0 000 105 25 09 2.0 -9.7 29.46 22 27 198 8 -046 28 22 26 3 2 0 000 106 25 10 2.0 -10.0 29.44 23 27 203 13 -042 27 21 27 3 2 1 000 107 25 11 1.5 -9.6 29.43 18 20 195 6 013 29 17 26 4 3 1 000 108 25 12 -2.9 -11.1 29.44 7 7 262 72 184 50 32 29 0 0 -1 000 109 25 13 -2.2 -11.8 29.42 8 8 247 57 091 39 30 24 0 -1 -2 000 110 25 14 -2.0 -11.5 29.40 8 8 251 62 047 37 30 26 0 0 0 000 111 25 15 -1.8 -11.6 29.38 7 7 267 77 081 36 31 27 0 0 0 000 112 25 16 -1.5 -8.3 29.37 8 9 272 82 095 47 31 25 0 0 0 000 113 25 17 -0.3 -6.4 29.35 6 6 235 46 102 44 25 28 2 1 0 000 114 25 18 0.9 -5.0 29.35 7 8 174 344 064 50 21 30 2 2 1 000 115 25 19 0.3 -2.9 29.36 7 8 145 315 076 78 24 36 2 1 0 000 116 25 20 -0.1 -4.7 29.37 6 7 126 296 090 67 33 33 0 1 0 000 117 25 21 -0.1 -2.8 29.38 6 7 101 272 085 80 41 32 -1 0 0 000 118 25 22 -0.2 -2.7 29.39 3 4 74 244 061 82 38 28 0 0 0 000 119 25 23 -0.3 -3.3 29.39 3 3 347 157 063 78 35 28 0 0 0 000 120 26 00 -0.1 -2.8 29.39 2 3 331 141 038 80 34 27 1 0 0 000 * 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.