Heard Island site lat/lon = (-53.0000,72.6000) cell lat/lon = (-53.0015,72.5908) Forecast initialized at 2025-09-26/00 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 26 00 0.8 -3.7 29.31 17 18 302 15 000 69 77 89 0 -2 -3 000 1 26 01 0.8 -2.9 29.31 16 20 310 23 000 73 81 90 0 -2 -3 000 2 26 02 0.9 -2.5 29.30 17 22 316 29 000 76 86 96 0 -2 -3 000 3 26 03 0.9 -2.2 29.32 19 25 320 32 -001 77 87101 0 -2 -3 000 4 26 04 0.7 -1.7 29.32 21 27 326 38 000 82 93 96 0 -2 -3 000 5 26 05 0.8 -1.6 29.30 21 28 331 44 000 83 88102 0 -2 -3 001 6 26 06 0.9 -1.7 29.28 22 30 337 50 000 81 85103 0 -2 -3 003 7 26 07 1.1 -1.5 29.27 24 32 341 53 -001 81 91101 0 -1 -3 002 8 26 08 1.3 -1.5 29.24 25 34 346 58 -001 79 89 98 0 -1 -2 000 9 26 09 1.3 -1.1 29.21 27 36 350 62 -003 83 93103 0 -1 -2 000 10 26 10 1.6 -0.9 29.18 27 37 350 62 -001 82 91105 0 -1 -2 000 11 26 11 1.6 -0.8 29.14 29 40 352 64 000 82 93 97 0 -1 -2 000 12 26 12 1.7 -0.6 29.11 30 43 356 68 000 83 93 95 0 -1 -2 000 13 26 13 1.6 -0.2 29.07 31 46 1 73 000 87 96 99 0 0 -1 004 14 26 14 1.8 0.3 29.02 33 49 6 79 -001 89100 94 0 0 -1 006 15 26 15 2.2 0.6 28.98 34 51 6 78 -003 88 99100 1 0 0 002 16 26 16 2.2 1.2 28.92 35 54 5 78 -013 93100100 1 0 0 076 17 26 17 2.7 1.9 28.86 37 56 4 77 -003 94100100 1 1 0 161 18 26 18 3.4 2.8 28.80 38 58 357 69 -023 96 99100 2 2 1 099 19 26 19 3.8 3.2 28.77 38 59 351 64 -014 96100100 3 2 1 259 20 26 20 3.9 3.3 28.74 38 59 353 65 -003 96100100 3 2 2 208 21 26 21 4.0 3.5 28.70 36 57 355 67 -011 97100100 3 3 2 085 22 26 22 4.2 4.0 28.66 32 54 355 67 -007 99100100 4 3 3 208 23 26 23 4.1 3.9 28.65 29 48 344 57 -010 100100100 3 3 2 311 24 27 00 3.8 3.7 28.63 24 38 330 43 000 99100 96 3 3 2 157 25 27 01 3.1 3.0 28.65 19 29 318 31 -003 100100101 3 2 1 002 26 27 02 2.6 2.5 28.67 14 23 326 38 000 100100102 2 1 0 000 27 27 03 2.4 2.3 28.66 14 23 337 49 -003 100100 68 1 1 0 000 28 27 04 1.7 1.6 28.65 16 22 328 40 -001 100100 59 0 0 -1 000 29 27 05 1.5 1.1 28.64 14 19 338 51 000 97100 65 0 0 -1 000 30 27 06 1.6 1.0 28.60 11 16 353 66 003 96100 95 0 0 0 000 31 27 07 1.6 1.2 28.56 10 13 24 97 003 98100101 1 1 0 000 32 27 08 1.7 1.5 28.52 12 18 35 107 000 100100101 1 1 1 004 33 27 09 2.0 1.8 28.47 10 16 26 99 000 100100 93 1 1 1 017 34 27 10 2.0 1.9 28.44 8 13 353 65 -005 100 99 95 1 0 0 033 35 27 11 1.8 1.7 28.40 7 10 330 42 -012 100100 99 1 0 0 051 36 27 12 1.6 1.4 28.36 8 12 289 1 -005 100100103 0 0 0 065 37 27 13 1.1 1.0 28.34 11 15 273 346 -005 100100103 0 0 -1 102 38 27 14 1.0 0.8 28.32 14 21 252 324 000 99100100 0 0 -1 104 39 27 15 1.3 0.6 28.33 18 24 246 318 000 95 95 96 0 -1 -2 035 40 27 16 1.1 0.4 28.34 20 25 255 328 -005 96100 99 0 -1 -2 024 41 27 17 0.7 -0.1 28.35 21 29 262 335 -003 94 92100 0 -1 -2 035 42 27 18 1.5 -0.6 28.36 21 29 274 346 -002 85 85 86 0 -1 -2 013 43 27 19 1.5 -0.8 28.37 23 31 276 349 -001 83 89 75 0 -1 -2 000 44 27 20 1.5 -1.5 28.38 23 30 283 356 000 79 86 78 0 -1 -2 000 45 27 21 1.2 -1.2 28.39 24 32 286 359 000 82 90 91 0 -1 -2 006 46 27 22 1.4 -1.7 28.39 23 31 287 0 004 78 76 83 0 -1 -2 000 47 27 23 1.3 -1.5 28.41 24 33 295 8 004 79 87 79 0 -1 -2 000 48 28 00 0.7 -1.3 28.43 27 36 302 15 -006 85 90 95 0 -2 -3 002 49 28 01 1.1 -1.9 28.43 29 42 300 13 -002 78 82 93 0 -1 -3 121 50 28 02 1.1 -2.0 28.43 27 36 303 15 -002 77 87 85 0 -1 -3 008 51 28 03 0.9 -2.0 28.42 27 36 305 18 000 79 86 89 0 -2 -3 000 52 28 04 1.1 -1.7 28.41 27 38 307 20 001 80 90 96 0 -1 -3 000 53 28 05 0.7 -0.5 28.39 28 40 309 21 002 92 97105 0 -2 -2 010 54 28 06 1.5 -1.1 28.39 30 42 291 3 002 81 90 97 0 -1 -2 045 55 28 07 1.5 -1.0 28.41 29 39 298 10 002 82 92 89 0 -1 -2 000 56 28 08 0.9 -0.1 28.42 27 39 292 5 -003 92 98103 0 -1 -2 020 57 28 09 1.1 -0.6 28.44 30 43 291 3 003 87 95102 0 -1 -2 041 58 28 10 0.5 -0.5 28.46 32 47 292 4 -014 92 97106 0 -2 -3 123 59 28 11 0.6 -0.9 28.48 32 47 292 4 -021 89 93100 0 -2 -3 042 60 28 12 1.8 -2.4 28.48 33 43 290 2 002 71 78 85 0 -1 -2 019 61 28 13 1.3 -1.8 28.50 32 44 291 4 000 78 86 92 0 -1 -2 000 62 28 14 1.2 -1.6 28.51 30 42 293 6 000 80 87 80 0 -1 -3 000 63 28 15 1.1 -1.6 28.53 30 42 292 4 002 80 89 89 0 -1 -3 000 64 28 16 0.9 -1.0 28.54 30 42 293 6 002 86 95 88 0 -2 -3 002 65 28 17 1.0 -1.2 28.55 30 42 294 6 002 84 93 86 0 -1 -3 001 66 28 18 1.1 -1.5 28.55 30 40 294 7 000 81 89 84 0 -1 -3 000 67 28 19 0.5 -0.9 28.57 30 44 292 5 -006 89 94102 0 -2 -3 023 68 28 20 0.5 -0.6 28.58 32 44 291 3 -023 92 98105 0 -2 -3 027 69 28 21 1.2 -1.3 28.60 33 45 285 358 000 82 90 94 0 -1 -2 052 70 28 22 1.2 -1.2 28.62 31 42 287 0 -001 82 90 85 0 -1 -2 005 71 28 23 0.9 -0.5 28.65 31 45 284 357 004 89 95 99 0 -1 -2 021 72 29 00 1.2 -1.1 28.68 32 45 286 359 005 83 90 98 0 -1 -2 001 73 29 01 1.0 -1.0 28.70 33 47 286 359 004 85 91100 0 -1 -2 018 74 29 02 0.9 -0.8 28.73 32 45 285 357 003 87 97 97 0 -1 -3 003 75 29 03 0.8 -0.6 28.75 31 44 286 359 000 90 96106 0 -1 -2 030 76 29 04 1.7 -2.0 28.78 31 43 287 0 001 74 81 84 0 -1 -2 021 77 29 05 1.2 -0.9 28.80 31 45 294 6 -001 84 91 95 0 -1 -2 001 78 29 06 1.2 -0.7 28.82 32 45 292 4 002 86 95 97 0 -1 -2 001 79 29 07 1.2 -0.9 28.83 32 46 291 4 000 84 91102 0 -1 -2 010 80 29 08 1.2 -1.3 28.85 34 49 291 4 -011 81 86 97 0 -1 -2 021 81 29 09 1.9 -2.0 28.86 35 48 292 5 -003 73 81 91 0 0 -2 001 82 29 10 1.4 -1.2 28.87 34 49 293 6 002 81 88 91 0 -1 -2 000 83 29 11 1.1 -0.6 28.88 34 48 296 8 003 88 95101 0 -1 -2 003 84 29 12 1.2 -1.0 28.89 34 48 294 7 -006 84 89101 0 -1 -2 019 85 29 13 0.9 -0.7 28.90 33 47 295 8 -003 88 93102 0 -1 -2 019 86 29 14 1.2 -1.2 28.90 32 46 296 8 003 82 89 96 0 -1 -2 021 87 29 15 1.0 -0.9 28.89 32 45 299 12 007 86 91102 0 -1 -2 026 88 29 16 0.8 -0.8 28.88 32 45 299 11 001 88 95101 0 -1 -3 022 89 29 17 0.8 -1.0 28.87 31 45 300 13 -006 87 92102 0 -1 -3 050 90 29 18 1.3 -1.7 28.86 31 44 297 9 000 79 86 99 0 -1 -2 022 91 29 19 0.9 -0.9 28.86 30 42 299 12 -002 87 94101 0 -1 -3 007 92 29 20 1.3 -1.8 28.84 30 41 302 15 -001 78 87 87 0 -1 -3 003 93 29 21 1.2 -2.2 28.82 31 42 304 17 001 75 82 85 0 -1 -3 000 94 29 22 0.7 -1.3 28.80 29 39 302 14 -018 85 91102 0 -2 -3 006 95 29 23 1.1 -2.1 28.78 30 40 295 8 005 77 84 72 0 -1 -3 031 96 30 00 0.5 -0.8 28.76 26 37 304 17 -002 90 95100 -1 -2 -3 008 97 30 01 0.7 -1.7 28.74 29 41 304 16 -001 82 89102 0 -2 -3 031 98 30 02 1.1 -2.1 28.73 31 42 296 9 001 77 85 86 0 -1 -3 008 99 30 03 1.0 -2.6 28.71 29 40 302 15 000 74 82 90 0 -2 -3 000 100 30 04 1.0 -2.8 28.70 29 40 302 14 002 73 79 80 0 -2 -3 001 101 30 05 0.5 -1.5 28.68 30 42 306 19 -009 85 92104 -1 -2 -3 012 102 30 06 0.5 -1.4 28.66 31 42 303 15 -011 86 94102 -1 -2 -3 028 103 30 07 0.6 -1.4 28.64 30 42 302 14 001 85 95 94 -1 -2 -3 044 104 30 08 0.5 -1.0 28.62 30 41 302 14 006 88 96 94 -1 -2 -3 021 105 30 09 0.8 -1.4 28.60 31 43 300 13 001 84 91101 0 -2 -3 003 106 30 10 0.9 -1.4 28.59 31 42 295 7 002 83 91 87 0 -2 -3 045 107 30 11 0.7 -0.7 28.58 31 43 291 4 -003 90 96102 0 -2 -3 043 108 30 12 0.6 -0.6 28.58 30 43 278 350 -006 91 97 98 0 -2 -3 046 109 30 13 0.5 -1.1 28.59 30 43 275 347 000 88 96104 -1 -2 -3 008 110 30 14 1.0 -2.9 28.59 37 51 262 335 004 72 81 88 0 -2 -3 036 111 30 15 0.6 -1.9 28.60 32 45 272 345 004 82 91 98 -1 -2 -3 011 112 30 16 0.5 -1.7 28.62 34 47 266 338 000 84 93104 -1 -2 -3 022 113 30 17 0.9 -2.3 28.63 38 53 264 336 003 77 85 95 0 -2 -3 064 114 30 18 0.3 -1.5 28.65 37 53 268 340 -015 86 95103 -1 -2 -3 015 115 30 19 0.8 -2.0 28.67 38 52 262 334 003 80 88 94 0 -2 -3 044 116 30 20 0.7 -1.8 28.69 38 53 262 335 -003 82 90103 0 -2 -3 012 117 30 21 0.4 -1.1 28.72 36 50 255 328 -001 89 98103 -1 -2 -3 030 118 30 22 0.9 -3.1 28.76 39 55 252 325 -004 72 79 90 0 -2 -3 054 119 30 23 0.9 -3.1 28.78 38 51 255 327 000 72 80 88 0 -2 -3 000 120 01 00 0.4 -2.4 28.81 37 53 256 329 005 79 88 99 -1 -2 -4 036 * 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.