Heard Island site lat/lon = (-53.0000,72.6000) cell lat/lon = (-53.0015,72.5908) Forecast initialized at 2026-04-29/00 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 29 00 4.2 4.0 29.76 15 18 323 36 000 100 99 98 4 5 5 000 1 29 01 3.8 3.7 29.75 14 20 336 48 -002 100100 99 5 6 6 000 2 29 02 4.0 3.8 29.71 15 24 352 65 000 100 93 79 4 7 7 000 3 29 03 4.4 4.3 29.69 16 29 4 77 -002 100 91 74 5 7 7 000 4 29 04 4.7 4.5 29.65 19 35 6 79 -001 100 73 57 4 8 8 000 5 29 05 4.8 4.6 29.59 22 41 8 80 -011 100100 80 4 5 7 046 6 29 06 5.2 5.1 29.53 28 47 8 81 -010 100100100 5 5 6 161 7 29 07 5.7 5.6 29.45 31 51 0 72 -003 99100100 5 5 5 095 8 29 08 6.2 6.1 29.38 32 53 345 57 -001 99100100 6 6 7 010 9 29 09 6.5 6.4 29.35 31 53 339 51 -003 99100100 7 7 7 008 10 29 10 6.8 6.7 29.36 29 53 332 45 -004 99100 76 7 8 7 007 11 29 11 6.9 6.8 29.35 27 50 329 42 -001 99100 53 7 8 7 006 12 29 12 6.7 6.6 29.35 26 48 327 39 -001 99100 49 7 7 7 005 13 29 13 6.4 6.3 29.34 24 45 328 40 -001 99100 53 7 7 7 003 14 29 14 6.1 6.0 29.33 21 41 329 41 000 99100 57 7 8 7 002 15 29 15 6.0 5.9 29.30 21 40 335 47 000 99100 81 7 8 8 029 16 29 16 5.9 5.7 29.28 19 39 335 47 -004 99100 99 7 8 8 067 17 29 17 6.0 5.9 29.25 18 38 328 41 -006 99100100 7 8 8 135 18 29 18 5.7 5.6 29.23 16 35 323 36 -002 99100100 7 8 7 012 19 29 19 5.4 5.3 29.20 13 30 328 40 -002 99100100 7 8 7 003 20 29 20 5.3 5.2 29.19 14 31 320 32 -004 99100100 7 7 7 012 21 29 21 5.1 5.0 29.21 13 24 293 6 -018 100 97 95 6 7 8 334 22 29 22 4.9 4.7 29.22 14 22 275 348 -001 100 92 99 8 8 8 034 23 29 23 4.7 4.5 29.24 9 15 283 356 -009 100 95 70 8 8 9 029 24 30 00 4.7 4.6 29.29 14 24 280 353 -004 100100 93 5 6 7 002 25 30 01 4.4 4.2 29.32 12 20 284 357 -002 100 99100 5 7 7 000 26 30 02 4.3 4.2 29.36 12 20 277 350 000 100100100 4 4 6 000 27 30 03 4.2 4.0 29.40 9 15 283 355 000 100 98 97 4 3 4 001 28 30 04 4.0 3.9 29.42 7 11 285 358 -001 100 94 99 4 3 4 000 29 30 05 3.8 3.7 29.42 5 9 271 343 001 100 95 99 3 3 3 000 30 30 06 3.7 3.6 29.43 4 7 240 312 001 100 93100 3 3 3 000 31 30 07 3.6 3.5 29.43 2 6 170 243 002 100 93100 3 2 3 000 32 30 08 3.6 3.4 29.42 4 7 153 226 001 100 94100 2 2 3 000 33 30 09 3.5 3.4 29.42 6 9 127 200 -002 100 92100 2 2 3 000 34 30 10 3.5 3.3 29.42 7 11 98 171 -001 100 94100 2 2 3 000 35 30 11 3.5 3.4 29.39 10 14 96 169 003 100 95100 3 3 4 000 36 30 12 3.6 3.5 29.37 10 15 91 164 -003 99 98100 3 3 4 004 37 30 13 3.6 3.4 29.34 10 15 103 176 003 99100100 4 5 6 003 38 30 14 3.7 3.4 29.31 11 17 106 178 -002 98100100 4 5 6 001 39 30 15 3.9 3.8 29.26 12 19 104 176 -002 100100100 5 6 6 002 40 30 16 4.2 4.0 29.21 12 19 104 176 002 100100100 5 7 7 000 41 30 17 4.3 4.1 29.17 13 23 91 163 003 100100100 4 6 7 018 42 30 18 4.2 4.1 29.10 13 22 95 168 002 100100100 5 7 9 003 43 30 19 4.1 4.0 29.07 10 16 83 156 007 100100 94 5 7 9 000 44 30 20 4.1 4.0 29.02 8 13 75 148 005 100100 86 6 9 10 000 45 30 21 3.9 3.8 28.98 4 9 35 107 003 100100 85 8 9 9 000 46 30 22 4.3 4.2 28.95 4 7 9 82 -007 100100 95 10 10 11 050 47 30 23 4.9 4.8 28.95 12 21 358 71 -001 100 94 95 9 9 9 069 48 01 00 5.0 4.9 28.94 17 29 324 37 001 100 85 82 8 10 8 000 49 01 01 4.8 4.7 28.92 15 24 333 45 -001 100 83 97 8 9 8 000 50 01 02 5.0 4.9 28.90 14 27 347 60 -001 100 85 94 9 9 8 000 51 01 03 5.4 5.2 28.87 17 32 358 70 -003 99100100 8 9 9 021 52 01 04 5.3 5.2 28.87 26 39 296 9 004 99100100 4 3 4 065 53 01 05 3.6 2.6 28.92 29 42 268 341 -009 93100 96 2 1 0 129 54 01 06 4.2 1.3 28.95 25 39 276 348 000 79 81102 3 1 0 098 55 01 07 4.1 1.2 29.00 28 40 284 356 001 79 85 88 2 1 0 000 56 01 08 4.0 1.3 29.02 27 41 290 2 004 80 87 85 2 1 0 000 57 01 09 3.3 1.8 29.05 30 43 297 10 -003 89 98103 1 0 0 015 58 01 10 4.1 1.5 29.07 27 39 298 10 000 81 91102 2 1 0 013 59 01 11 4.3 0.9 29.08 29 42 301 14 -002 76 81 85 3 1 0 016 60 01 12 3.9 1.5 29.09 28 42 310 22 002 83 90 94 2 1 0 011 61 01 13 4.0 1.3 29.11 29 42 305 18 000 81 87 85 2 1 0 013 62 01 14 4.1 1.3 29.12 29 44 310 23 000 80 87100 2 1 0 000 63 01 15 4.2 1.3 29.13 32 46 311 23 002 80 87 95 2 1 0 000 64 01 16 4.2 1.1 29.13 31 45 315 27 001 78 84 84 3 1 0 000 65 01 17 3.9 1.4 29.13 33 47 315 27 001 83 90 95 2 1 0 000 66 01 18 3.9 1.4 29.12 34 48 316 28 001 82 90 79 2 1 0 000 67 01 19 3.8 1.6 29.12 35 50 312 25 000 84 92 91 2 1 0 000 68 01 20 4.2 0.9 29.13 35 50 307 19 003 77 82 96 3 1 0 011 69 01 21 3.7 1.6 29.14 32 47 303 16 -002 85 93 92 2 1 0 048 70 01 22 3.9 0.9 29.16 35 49 301 14 000 79 86 84 2 1 0 011 71 01 23 3.3 1.3 29.18 34 48 300 12 001 85 95 93 1 0 0 000 72 02 00 3.7 0.6 29.20 34 48 292 4 006 79 85 89 2 0 0 012 73 02 01 3.9 0.6 29.22 33 47 300 13 007 77 85 95 2 1 0 000 74 02 02 3.8 0.3 29.24 37 52 294 6 000 76 82 89 2 1 0 011 75 02 03 3.2 0.9 29.27 34 48 292 4 000 83 87 84 1 0 0 004 76 02 04 3.1 0.9 29.31 35 50 291 4 001 84 93102 1 0 0 001 77 02 05 3.8 0.2 29.32 35 50 292 4 004 75 82 88 2 1 0 000 78 02 06 3.7 0.1 29.34 37 51 290 3 000 75 83 82 2 0 0 000 79 02 07 3.7 0.6 29.36 36 51 289 1 003 79 86 91 2 0 0 000 80 02 08 3.6 0.6 29.40 35 49 286 358 001 79 87 93 2 0 0 004 81 02 09 3.5 0.8 29.43 33 48 283 356 003 81 87 99 2 0 0 033 82 02 10 3.7 0.2 29.45 33 46 282 355 001 75 83 88 2 0 0 000 83 02 11 3.7 -0.0 29.48 34 48 283 355 000 74 81 89 2 0 0 000 84 02 12 2.6 1.2 29.52 32 45 279 352 006 90 95104 0 0 -1 035 85 02 13 3.4 0.3 29.55 33 46 281 353 -003 78 85 89 2 0 0 004 86 02 14 3.5 0.3 29.58 32 44 281 354 000 78 85 90 2 0 0 000 87 02 15 3.2 1.1 29.60 29 40 282 355 001 85 92 94 1 0 0 001 88 02 16 3.4 -0.4 29.61 33 48 275 347 000 73 80 97 1 0 0 015 89 02 17 3.0 0.2 29.65 31 45 273 346 002 80 85 84 1 0 0 007 90 02 18 3.5 -0.0 29.67 30 41 279 351 001 76 83 98 2 0 0 000 91 02 19 3.4 -0.2 29.69 30 40 282 354 -001 75 81 69 2 0 0 000 92 02 20 3.5 0.0 29.71 29 40 282 355 -001 76 81 81 2 0 0 000 93 02 21 2.6 1.2 29.74 30 42 277 349 000 90 96 95 0 0 -1 017 94 02 22 3.5 -1.7 29.75 30 42 274 346 000 66 68 82 2 0 0 003 95 02 23 3.5 -0.9 29.78 30 39 275 348 000 70 75 77 2 0 0 000 96 03 00 2.6 0.9 29.81 28 39 276 349 -001 88 95100 0 0 -1 004 97 03 01 2.4 1.4 29.82 25 34 281 353 001 93 95104 0 0 -1 026 98 03 02 2.4 1.4 29.84 24 34 272 345 001 93 96104 0 0 -1 108 99 03 03 3.2 -0.1 29.86 22 29 271 343 000 77 66 68 1 0 0 003 100 03 04 3.5 -1.2 29.88 22 30 274 347 -002 68 70 68 2 0 0 000 101 03 05 3.4 -0.8 29.90 19 25 267 340 000 71 76 85 1 0 0 000 102 03 06 3.3 -0.3 29.92 16 21 272 344 000 74 79 82 1 0 -1 000 103 03 07 3.3 0.0 29.92 13 18 272 344 002 77 81 72 1 0 -1 000 104 03 08 3.3 0.1 29.93 11 15 273 345 000 78 82 68 1 0 0 000 105 03 09 3.2 0.3 29.92 8 11 278 350 002 79 80 70 1 0 0 000 106 03 10 3.2 0.5 29.92 5 7 295 8 000 81 80 72 1 0 0 000 107 03 11 3.1 0.4 29.91 3 3 324 36 002 81 78 73 1 0 0 000 108 03 12 3.1 0.3 29.90 2 3 78 150 004 81 78 74 1 0 0 000 109 03 13 3.1 0.6 29.88 6 8 82 154 000 83 83 75 1 0 -1 000 110 03 14 3.0 0.8 29.87 8 11 91 164 000 84 84 75 1 0 -1 000 111 03 15 3.0 0.8 29.86 11 14 104 177 000 84 82 75 1 0 0 000 112 03 16 3.1 0.5 29.85 13 17 114 186 001 82 79 74 1 0 0 000 113 03 17 3.1 -0.0 29.84 16 21 117 189 000 78 78 71 1 0 0 000 114 03 18 3.1 -0.2 29.83 18 24 120 192 000 77 80 69 1 0 -1 000 115 03 19 3.0 -0.5 29.82 20 26 120 193 005 75 79 70 1 0 -1 000 116 03 20 3.0 -1.0 29.83 20 27 120 192 001 72 77 76 1 0 -1 000 117 03 21 2.9 -1.1 29.81 22 29 116 189 006 72 76 77 1 0 -1 000 118 03 22 2.9 -1.2 29.79 23 30 118 190 004 72 75 73 1 0 -1 000 119 03 23 2.9 -1.2 29.79 23 31 117 190 003 71 75 71 1 0 -1 000 120 04 00 2.9 -1.2 29.79 23 31 119 192 002 72 76 68 1 0 -1 000 * 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.