Heard Island site lat/lon = (-53.0000,72.6000) cell lat/lon = (-53.0015,72.5908) Forecast initialized at 2026-05-01/12 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 01 12 3.7 0.5 29.13 30 35 295 8 000 77 82 83 2 0 0 000 1 01 13 3.6 0.3 29.16 30 40 300 12 000 77 84 82 2 0 0 000 2 01 14 3.5 0.4 29.18 30 42 303 16 000 78 85 87 2 0 0 000 3 01 15 3.4 0.4 29.16 30 41 303 15 000 79 86 92 1 0 0 000 4 01 16 3.6 0.5 29.19 30 42 306 18 000 78 86 94 2 0 0 000 5 01 17 3.7 0.4 29.19 31 43 304 16 000 77 84 90 2 0 0 000 6 01 18 3.7 -0.0 29.20 31 43 308 20 000 74 81 91 2 0 0 000 7 01 19 3.5 0.6 29.20 33 46 310 23 000 80 89 90 2 0 0 004 8 01 20 2.8 1.5 29.20 33 48 310 22 -003 91 99103 1 0 0 031 9 01 21 3.2 1.6 29.21 34 48 305 18 005 89 98 99 1 0 0 016 10 01 22 3.9 1.1 29.20 34 50 305 18 001 80 89 94 2 1 0 006 11 01 23 3.8 1.2 29.21 35 50 304 16 -001 81 88 94 2 1 0 010 12 02 00 3.4 1.4 29.20 32 45 301 14 -009 85 97103 1 0 0 040 13 02 01 3.8 0.7 29.23 36 52 294 6 001 78 85 95 2 1 0 148 14 02 02 3.0 1.7 29.26 34 49 297 10 010 91 97101 1 0 0 025 15 02 03 3.9 0.2 29.27 35 50 294 7 000 74 80 83 2 1 0 000 16 02 04 3.7 0.2 29.30 35 49 291 3 000 76 85 97 2 0 0 001 17 02 05 3.0 1.3 29.32 34 48 290 2 -007 88 97104 1 0 0 029 18 02 06 4.0 0.1 29.36 35 48 286 359 003 73 80 79 2 1 0 018 19 02 07 3.5 0.9 29.40 34 47 289 1 001 82 89 84 2 0 0 000 20 02 08 3.6 0.8 29.42 33 46 286 359 -001 80 91101 2 0 0 002 21 02 09 3.7 0.8 29.43 33 46 289 1 000 79 87 93 2 0 0 002 22 02 10 3.7 0.5 29.44 34 48 288 0 001 77 85 96 2 0 0 000 23 02 11 3.3 0.9 29.47 32 44 284 357 000 83 94103 1 0 0 004 24 02 12 3.1 0.5 29.49 32 46 280 353 000 81 86 85 1 0 0 075 25 02 13 3.5 0.1 29.52 32 44 286 359 000 76 83 77 2 0 0 000 26 02 14 3.7 -0.0 29.54 32 43 283 356 001 74 81 85 2 0 0 000 27 02 15 3.6 0.2 29.56 30 41 284 357 001 77 83 84 2 0 0 000 28 02 16 2.5 1.7 29.58 28 39 285 357 -004 95 99104 0 0 -1 028 29 02 17 3.3 0.0 29.60 29 41 278 351 -001 77 79 66 1 0 0 030 30 02 18 3.2 0.7 29.61 28 40 284 357 001 83 92 98 1 0 0 001 31 02 19 2.6 1.6 29.63 28 39 282 354 -001 93 99103 0 0 -1 015 32 02 20 3.2 0.2 29.65 28 37 278 350 -001 79 82 68 1 0 0 018 33 02 21 3.4 -0.5 29.67 27 37 280 352 000 72 77 70 1 0 0 000 34 02 22 2.1 1.1 29.69 27 39 279 351 000 93 95104 0 0 -1 024 35 02 23 2.5 1.0 29.70 29 41 283 356 000 89 95104 0 0 -1 017 36 03 00 3.4 -0.6 29.72 30 40 269 342 000 73 78 72 1 0 0 005 37 03 01 2.5 0.3 29.74 29 38 271 344 001 84 92 98 0 0 -1 001 38 03 02 2.8 -0.4 29.75 28 38 269 342 001 77 81 89 1 0 -1 051 39 03 03 2.8 0.1 29.79 27 37 266 339 003 80 89102 1 0 -1 000 40 03 04 2.9 -0.8 29.80 26 35 266 338 003 74 78 79 1 0 -1 000 41 03 05 3.2 -0.6 29.83 26 34 265 338 000 74 81 82 1 0 -1 000 42 03 06 3.1 -0.2 29.85 26 34 268 341 000 77 83 78 1 0 -1 000 43 03 07 3.2 -0.2 29.88 25 34 263 335 003 76 82 76 1 0 -1 000 44 03 08 3.1 -0.3 29.91 24 32 256 328 001 76 83 73 1 0 -1 000 45 03 09 3.1 -1.0 29.93 23 31 251 323 002 71 75 70 1 0 -1 000 46 03 10 3.1 -1.4 29.96 22 30 250 323 -001 70 73 64 1 0 -1 000 47 03 11 3.0 -0.9 29.99 20 27 255 328 000 73 78 64 1 0 -1 000 48 03 12 2.9 -0.7 30.01 19 24 253 326 002 74 81 83 1 0 -1 000 49 03 13 3.0 -0.5 30.04 17 22 251 323 002 76 83 77 1 0 -1 000 50 03 14 3.0 -0.0 30.07 16 21 254 326 005 79 79 77 1 0 0 000 51 03 15 2.9 -0.3 30.08 13 18 243 316 004 77 53 84 1 0 0 000 52 03 16 3.0 -0.6 30.11 12 15 250 323 001 75 70 83 1 0 -1 000 53 03 17 2.9 -0.5 30.12 10 12 247 320 007 76 83 79 1 0 -1 000 54 03 18 2.8 -0.4 30.11 6 8 233 306 004 78 84 78 1 0 -1 000 55 03 19 2.8 -0.4 30.12 3 3 246 319 003 79 83 78 1 0 -1 000 56 03 20 2.8 -0.4 30.13 0 1 335 47 002 79 81 78 1 0 -1 000 57 03 21 2.8 -0.1 30.13 3 4 34 107 000 80 82 80 1 0 -1 000 58 03 22 2.8 -0.0 30.11 6 7 55 127 000 80 81 83 1 0 -1 000 59 03 23 2.7 -0.2 30.08 10 12 68 141 000 80 76 82 1 0 -1 000 60 04 00 2.7 -0.3 30.07 13 16 64 136 001 79 57 77 1 0 0 000 61 04 01 2.8 -0.3 30.06 16 20 63 135 002 78 56 79 1 0 0 000 62 04 02 2.8 -0.2 30.04 18 24 63 136 005 78 73 84 1 0 -1 000 63 04 03 2.8 -0.2 30.01 22 29 61 134 007 79 81 87 1 0 -1 000 64 04 04 2.9 -0.8 29.98 24 33 59 131 -002 74 73 88 1 0 -1 000 65 04 05 2.6 -0.8 29.95 26 35 50 122 -003 76 82 97 0 0 -2 000 66 04 06 1.4 0.7 29.91 27 39 55 128 -002 96 96 97 0 -1 -2 098 67 04 07 1.5 0.8 29.85 29 43 60 132 -004 96 98100 0 -1 -2 124 68 04 08 1.5 0.9 29.79 31 46 61 134 -005 96 98 99 0 -1 -2 165 69 04 09 1.6 1.0 29.73 34 48 60 132 000 97101100 0 -1 -1 241 70 04 10 1.8 1.2 29.65 36 52 60 132 -005 96100 98 0 0 -1 262 71 04 11 2.2 1.4 29.56 39 54 64 136 -010 94100 98 0 0 0 389 72 04 12 3.2 2.0 29.48 40 56 62 134 -008 91100100 1 0 0 162 73 04 13 3.6 2.5 29.41 39 57 58 130 -006 92100100 2 1 1 300 74 04 14 4.1 3.1 29.34 38 55 51 124 -002 93100100 3 2 2 225 75 04 15 4.8 4.2 29.27 36 53 46 118 -001 96100100 4 3 3 112 76 04 16 5.5 5.3 29.22 30 47 33 106 002 100100 99 5 5 5 225 77 04 17 5.8 5.6 29.19 27 47 21 94 002 99100 99 6 6 6 061 78 04 18 5.8 5.6 29.14 25 44 20 92 002 99100100 6 6 6 006 79 04 19 5.8 5.6 29.10 23 41 14 87 012 99100100 6 7 8 026 80 04 20 5.5 5.4 29.06 21 38 15 88 004 99100100 6 7 8 036 81 04 21 5.5 5.4 29.02 21 40 17 90 011 99100 99 6 7 7 044 82 04 22 5.4 5.3 28.97 21 35 11 84 -001 99100100 6 7 7 005 83 04 23 5.2 5.1 28.92 19 32 15 87 000 99100 95 7 9 8 001 84 05 00 5.3 5.2 28.89 17 31 12 85 000 100100 96 8 8 7 000 85 05 01 5.5 5.4 28.85 19 33 9 81 002 99100 96 7 8 8 076 86 05 02 5.7 5.6 28.82 17 32 3 76 -010 99100 96 7 7 7 059 87 05 03 5.1 5.0 28.79 19 28 347 59 000 99100 94 5 5 5 032 88 05 04 4.5 4.4 28.77 19 28 341 53 001 100 97 99 4 5 5 001 89 05 05 4.3 4.1 28.73 17 28 336 48 -002 100 84 93 4 5 4 004 90 05 06 4.2 4.0 28.71 17 27 335 48 000 100 92 91 4 4 3 004 91 05 07 4.1 3.9 28.68 16 24 338 51 -001 100 86 92 3 4 3 004 92 05 08 3.9 3.8 28.65 17 24 339 52 -003 100100 98 3 3 2 000 93 05 09 3.9 3.7 28.64 19 28 311 24 002 100100100 3 2 1 008 94 05 10 3.5 2.3 28.64 24 33 281 354 -003 91 99 98 2 0 0 012 95 05 11 3.5 2.0 28.65 25 36 289 2 001 89 95102 2 0 0 024 96 05 12 3.6 1.2 28.66 27 37 295 8 -001 83 91103 2 0 0 009 97 05 13 3.0 1.3 28.65 25 33 299 12 -001 88 98102 1 0 0 004 98 05 14 3.1 1.6 28.63 22 30 313 26 001 89 96103 1 0 0 005 99 05 15 3.3 2.0 28.59 19 26 329 41 -002 91 99102 1 0 0 000 100 05 16 3.0 2.3 28.54 19 27 347 60 -001 95100102 1 0 0 032 101 05 17 3.0 2.3 28.50 23 32 340 53 000 95100102 1 0 0 067 102 05 18 3.0 1.9 28.47 27 37 294 6 -013 92 99103 1 0 0 067 103 05 19 3.3 0.4 28.47 30 43 291 4 010 79 86 96 1 0 0 036 104 05 20 3.2 0.0 28.48 31 43 294 6 001 77 84 90 1 0 0 000 105 05 21 2.3 1.0 28.49 32 44 300 13 -001 90 94103 0 0 -1 018 106 05 22 2.2 0.8 28.50 32 44 292 4 -004 90 92104 0 0 -1 027 107 05 23 3.1 -0.2 28.51 29 39 290 3 003 76 83 91 1 0 -1 028 108 06 00 2.8 -0.1 28.52 31 44 299 11 005 79 86 94 1 0 -1 039 109 06 01 2.3 0.4 28.53 30 42 301 13 -007 86 90 94 0 0 -1 056 110 06 02 3.3 -0.8 28.52 32 44 304 17 006 72 77 89 1 0 -1 000 111 06 03 3.3 -0.9 28.51 32 44 309 22 004 71 76 76 1 0 -1 000 112 06 04 3.3 -1.4 28.50 32 44 314 26 -002 69 74 86 1 0 -1 000 113 06 05 2.5 0.1 28.48 33 47 320 32 001 83 91 94 0 0 -1 012 114 06 06 2.7 0.4 28.44 36 50 319 32 -010 84 92103 1 0 -1 009 115 06 07 2.6 1.2 28.41 36 50 313 26 000 90 98104 0 0 -1 059 116 06 08 2.5 1.5 28.38 33 46 307 20 -003 92 97104 0 0 -1 057 117 06 09 2.5 1.4 28.36 31 42 296 9 -002 92 99104 0 0 0 042 118 06 10 2.6 1.5 28.37 28 37 275 348 -008 92100103 0 0 -1 036 119 06 11 2.9 1.4 28.40 26 34 257 330 -001 89 98103 1 0 0 039 120 06 12 2.9 1.3 28.45 27 37 232 304 -001 88 98103 1 0 0 024 * 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.