Heard Island site lat/lon = (-53.0000,72.6000) cell lat/lon = (-53.0015,72.5908) Forecast initialized at 2025-12-07/00 UTC MPAS cell scale: 17.3 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 07 00 1.4 -2.6 29.17 22 25 257 329 000 71 79 95 0 -1 -3 000 1 07 01 1.3 -2.1 29.16 19 25 256 329 000 76 86 93 0 -2 -3 000 2 07 02 1.2 -1.9 29.17 19 25 254 327 001 78 86 98 0 -2 -3 000 3 07 03 1.3 -1.9 29.17 19 25 254 327 000 77 84 96 0 -1 -3 000 4 07 04 1.3 -1.8 29.16 19 25 257 329 000 77 84101 0 -1 -2 000 5 07 05 1.2 -1.5 29.16 20 25 257 330 000 80 87100 0 -1 -3 000 6 07 06 1.4 -1.4 29.18 20 26 258 330 000 80 89100 0 -1 -3 000 7 07 07 1.3 -1.1 29.17 21 27 256 329 000 82 91103 0 -1 -2 002 8 07 08 1.4 -0.9 29.17 21 28 257 329 000 83 92102 0 -1 -2 002 9 07 09 1.6 -1.0 29.17 22 29 257 329 000 81 92100 0 -1 -2 000 10 07 10 1.6 -0.8 29.20 22 29 258 330 000 82 93104 0 -1 -2 000 11 07 11 1.7 -0.7 29.19 22 30 258 331 000 82 93105 0 -1 -2 000 12 07 12 1.7 -0.5 29.22 22 29 257 330 000 84 94101 0 -1 -2 001 13 07 13 1.7 -0.4 29.23 22 29 258 331 001 85 94103 0 -1 -2 000 14 07 14 1.6 -0.3 29.23 21 28 259 332 000 86 95101 0 -1 -2 002 15 07 15 1.7 -0.4 29.23 21 27 262 334 000 85 95101 0 -1 -2 000 16 07 16 1.7 -0.4 29.24 20 26 266 338 000 84 93102 0 -1 -2 000 17 07 17 1.7 -0.4 29.24 20 26 267 340 000 85 94103 0 -1 -2 004 18 07 18 1.6 -0.4 29.24 20 25 270 343 000 85 92103 0 -1 -2 005 19 07 19 1.4 -0.4 29.23 19 24 272 345 000 86 86 97 0 -1 -2 007 20 07 20 1.6 -0.9 29.22 18 23 276 348 000 82 85 96 0 -1 -2 002 21 07 21 1.7 -1.0 29.21 18 22 277 350 000 81 87 95 0 -1 -2 000 22 07 22 1.6 -1.0 29.21 17 21 278 350 000 81 89 93 0 -1 -2 001 23 07 23 1.6 -1.1 29.21 16 19 275 348 000 81 86 90 0 -1 -2 001 24 08 00 1.6 -1.9 29.19 13 16 270 343 000 76 83 85 0 -1 -2 000 25 08 01 1.6 -2.0 29.17 10 14 270 343 000 75 84 84 0 -1 -2 000 26 08 02 1.6 -1.5 29.15 8 11 281 353 000 78 87 85 0 -1 -2 000 27 08 03 1.5 -0.8 29.14 7 9 302 14 -001 84 88 87 0 -1 -2 000 28 08 04 1.3 -0.7 29.13 7 8 312 25 -001 86 86 90 0 -1 -2 000 29 08 05 1.3 -1.2 29.11 6 6 317 30 000 83 68 92 0 -1 -2 000 30 08 06 1.3 -1.2 29.10 4 5 327 40 000 83 64 90 0 -1 -2 000 31 08 07 1.4 -1.1 29.08 3 3 339 52 000 83 66 88 0 -1 -2 000 32 08 08 1.4 -0.8 29.07 3 4 334 47 000 85 71 88 0 -1 -2 000 33 08 09 1.4 -0.5 29.05 2 3 315 28 -002 87 76 88 0 -1 -2 000 34 08 10 1.4 -0.4 29.04 2 3 272 345 -002 87 83 91 0 -1 -2 000 35 08 11 1.1 -0.2 29.04 4 5 241 314 -001 91 89 96 0 -1 -3 006 36 08 12 0.9 -0.4 29.03 6 7 225 297 -001 91 87 95 0 -2 -3 017 37 08 13 0.7 -0.9 29.04 7 8 222 295 -002 89 86 96 0 -2 -3 016 38 08 14 0.8 -0.4 29.03 7 9 232 305 -001 92 89 98 0 -1 -3 014 39 08 15 1.1 0.2 29.03 9 11 238 311 000 93 92 99 0 -1 -2 011 40 08 16 1.5 -0.3 29.04 10 12 232 305 000 87 93 93 0 -1 -2 002 41 08 17 1.7 -1.4 29.05 11 14 221 293 000 78 88 91 0 -1 -2 000 42 08 18 1.5 -1.1 29.05 12 15 222 294 000 81 87 92 0 -1 -2 000 43 08 19 1.3 -0.2 29.06 13 16 232 304 000 89 94 86 0 -1 -2 000 44 08 20 1.3 0.2 29.07 13 16 236 309 000 92 92 99 0 -1 -2 003 45 08 21 1.5 0.3 29.08 13 16 235 308 000 91 90 96 0 -1 -2 005 46 08 22 1.7 -0.1 29.09 12 14 234 306 000 87 88 94 0 -1 -2 000 47 08 23 1.6 -0.0 29.11 12 14 238 310 000 88 88102 0 -1 -2 000 48 09 00 1.1 0.6 29.13 13 16 231 303 -002 97 92106 0 -1 -2 021 49 09 01 1.0 -0.7 29.15 11 14 225 298 001 88 79 81 0 -1 -2 036 50 09 02 1.5 -0.8 29.15 12 16 247 319 000 83 76 84 0 -1 -2 000 51 09 03 1.8 -0.7 29.17 15 21 250 323 000 82 91 87 0 -1 -2 000 52 09 04 1.9 -0.8 29.18 17 21 247 320 000 80 87 77 0 -1 -2 000 53 09 05 1.9 -0.8 29.19 16 20 248 321 000 81 86 81 0 -1 -2 000 54 09 06 1.6 0.0 29.20 15 20 258 331 000 88 92105 0 -1 -2 000 55 09 07 1.2 0.7 29.20 17 24 256 328 -004 97 98105 0 -1 -2 048 56 09 08 1.7 0.4 29.21 17 21 244 317 000 91 89 93 0 -1 -2 041 57 09 09 2.1 -0.0 29.22 15 18 246 318 000 85 85 82 0 0 -1 000 58 09 10 2.2 -0.3 29.23 14 19 248 321 000 82 85 88 0 0 -1 000 59 09 11 2.1 -0.3 29.24 15 21 252 324 000 83 88100 0 0 -2 000 60 09 12 1.9 0.4 29.25 15 21 256 328 000 89 94 99 0 0 -2 001 61 09 13 1.9 0.5 29.25 16 21 252 324 000 90 95102 0 0 -2 007 62 09 14 2.0 -0.2 29.26 16 22 242 315 000 84 89 87 0 0 -1 003 63 09 15 2.0 -0.2 29.27 15 20 238 310 003 84 90 88 0 0 -2 000 64 09 16 2.0 -0.3 29.29 13 18 246 319 000 83 91 90 0 -1 -2 000 65 09 17 2.1 -0.1 29.30 13 18 258 331 000 84 92 91 0 0 -2 000 66 09 18 2.0 -0.1 29.30 12 16 258 331 003 85 87 84 0 0 -1 000 67 09 19 1.9 -0.0 29.29 10 13 264 337 004 86 85 85 0 0 -1 000 68 09 20 1.9 0.0 29.30 10 13 279 352 -001 86 81 87 0 0 -1 000 69 09 21 2.0 0.2 29.30 9 13 289 1 000 87 88 85 0 0 -1 000 70 09 22 2.1 0.5 29.29 9 12 301 13 000 88 92 88 0 0 -1 000 71 09 23 2.1 0.7 29.27 7 9 319 32 002 90 74 81 0 0 -1 000 72 10 00 2.0 0.9 29.26 8 10 343 55 -001 92 81 83 0 0 -1 000 73 10 01 2.1 1.1 29.26 10 13 345 58 000 93 91 94 0 0 -1 000 74 10 02 2.1 0.9 29.25 11 14 349 61 -001 91 91 98 0 0 -1 002 75 10 03 1.7 0.7 29.24 12 16 355 68 -002 93 87 97 0 -1 -2 010 76 10 04 1.4 0.4 29.23 14 20 11 83 -003 93 95 98 0 -1 -2 009 77 10 05 1.5 0.7 29.21 16 22 25 98 -002 94 98100 0 0 -1 009 78 10 06 1.7 1.0 29.19 18 24 26 98 -001 95100104 0 0 -1 021 79 10 07 1.7 1.1 29.18 18 24 17 90 -001 96100103 0 0 -1 044 80 10 08 1.9 1.2 29.17 18 24 11 83 -002 95100103 0 0 -1 031 81 10 09 2.0 1.7 29.16 16 20 2 74 001 98100102 0 0 0 026 82 10 10 2.6 2.2 29.17 11 18 315 27 -001 97100 91 1 0 0 005 83 10 11 3.1 1.7 29.19 18 29 259 332 000 90 97 68 2 0 0 000 84 10 12 2.8 1.6 29.20 15 22 271 344 -003 91 90 66 1 0 0 000 85 10 13 2.8 1.7 29.22 13 19 292 5 000 91 89 79 2 0 0 000 86 10 14 2.8 1.6 29.23 13 19 293 6 -001 90 89 88 2 1 0 000 87 10 15 2.7 1.9 29.23 12 17 299 11 000 94 92 83 2 0 0 000 88 10 16 2.7 1.9 29.22 10 14 307 19 000 94 96 86 1 0 0 000 89 10 17 2.6 1.8 29.22 9 13 308 21 -001 94 99 84 1 0 -1 000 90 10 18 2.6 1.8 29.23 8 11 310 22 000 94 96 79 1 0 0 000 91 10 19 2.5 1.9 29.22 7 10 326 38 000 95 91 84 1 0 0 000 92 10 20 2.4 1.8 29.20 7 9 334 46 000 95 88 91 1 0 0 000 93 10 21 2.4 1.7 29.19 7 9 328 40 001 94 84 92 1 0 0 000 94 10 22 2.4 1.6 29.18 7 9 327 39 -003 94 85 89 1 0 0 000 95 10 23 2.4 1.7 29.18 7 9 324 37 -004 96 95 94 1 0 -1 000 96 11 00 2.3 1.8 29.17 7 10 315 28 -006 96100101 0 0 -1 002 97 11 01 2.2 1.6 29.16 6 8 293 6 -004 96 98 96 0 0 -1 013 98 11 02 2.1 1.6 29.15 5 7 283 356 -003 96 93 90 0 0 -1 003 99 11 03 2.1 1.6 29.14 5 7 294 7 -001 97 94 94 0 0 -1 003 100 11 04 1.9 1.4 29.14 5 8 306 18 000 97 98100 0 0 -1 018 101 11 05 1.9 1.3 29.14 7 10 316 29 000 96 98104 0 0 -1 009 102 11 06 2.0 1.3 29.14 9 12 301 14 000 95100103 0 0 -1 007 103 11 07 2.1 1.1 29.14 9 12 269 342 000 93 95 79 0 0 -1 000 104 11 08 2.0 1.1 29.15 10 13 255 327 000 94 94 86 0 0 -1 000 105 11 09 1.9 1.1 29.17 9 11 256 328 001 94 92101 0 0 -1 001 106 11 10 1.7 1.2 29.18 8 10 272 344 -001 97 95104 0 0 -1 015 107 11 11 1.6 1.2 29.18 6 8 292 5 000 97 98103 0 0 -1 013 108 11 12 1.6 1.3 29.18 7 9 287 0 000 98100104 0 0 -1 000 109 11 13 1.1 1.0 29.19 8 10 277 349 000 100 97 98 0 0 -1 000 110 11 14 0.9 0.7 29.20 9 12 273 346 000 100 92 94 0 0 -1 000 111 11 15 1.8 1.0 29.19 8 12 271 343 000 94 92 97 0 0 -1 000 112 11 16 2.3 1.2 29.20 7 9 274 346 000 91 92 97 0 0 -1 000 113 11 17 2.2 1.0 29.20 7 8 281 354 000 91 90 89 0 0 -1 000 114 11 18 2.0 1.0 29.21 7 8 279 351 000 93 94 80 0 0 -1 000 115 11 19 1.4 0.9 29.22 8 8 274 347 000 97101 77 0 -1 -1 000 116 11 20 0.9 0.8 29.23 8 8 272 345 001 100101 77 0 -1 -2 000 117 11 21 0.8 0.6 29.23 7 8 271 344 001 100101 79 0 -1 -2 000 118 11 22 0.6 0.5 29.24 7 9 270 343 001 100102 83 0 -1 -3 000 119 11 23 0.7 -0.0 29.25 8 9 267 339 000 95102 86 0 -1 -3 000 120 12 00 0.8 -0.5 29.25 8 9 258 331 -001 90102 85 0 -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.