Heard Island site lat/lon = (-53.0000,72.6000) cell lat/lon = (-53.0015,72.5908) Forecast initialized at 2025-09-28/12 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 28 12 0.3 -4.6 28.52 25 28 289 2 000 64 68 75 -1 -2 -4 000 1 28 13 0.2 -3.9 28.53 25 32 287 359 001 71 80 85 -1 -3 -4 000 2 28 14 0.1 -3.8 28.55 23 32 289 1 000 72 77 78 -1 -3 -4 000 3 28 15 0.4 -4.4 28.54 25 33 286 359 002 66 73 79 -1 -2 -4 000 4 28 16 0.6 -4.6 28.55 26 34 289 2 002 65 70 83 -1 -2 -4 000 5 28 17 0.3 -4.1 28.58 27 35 287 0 001 69 77 91 -1 -2 -4 001 6 28 18 0.2 -3.2 28.58 27 35 284 357 000 76 86 92 -1 -3 -4 003 7 28 19 -0.1 -1.9 28.60 26 37 286 358 001 88 95101 -1 -3 -4 040 8 28 20 0.6 -3.1 28.60 29 38 289 1 002 73 81 82 -1 -2 -3 002 9 28 21 0.3 -2.1 28.61 30 41 291 4 000 82 91 99 -1 -2 -4 012 10 28 22 0.7 -2.1 28.60 31 43 292 4 009 80 88 93 0 -2 -3 017 11 28 23 0.2 -0.7 28.62 28 40 288 1 -027 93 98105 -1 -2 -3 111 12 29 00 0.9 -1.4 28.64 31 43 281 353 012 83 92 97 0 -2 -3 081 13 29 01 1.3 -2.6 28.66 27 37 280 353 003 72 80 84 0 -1 -3 000 14 29 02 1.2 -1.8 28.67 28 41 287 0 002 78 84 82 0 -1 -3 002 15 29 03 0.9 -0.7 28.69 29 40 290 2 000 88 97103 0 -2 -3 005 16 29 04 1.2 -1.4 28.72 30 42 290 2 001 81 89 95 0 -1 -2 002 17 29 05 1.5 -1.8 28.75 33 44 289 2 004 77 85 91 0 -1 -2 000 18 29 06 1.5 -1.3 28.76 31 44 294 7 000 80 87 78 0 -1 -2 000 19 29 07 1.4 -1.2 28.79 32 46 294 7 002 81 89 92 0 -1 -2 000 20 29 08 1.2 -0.5 28.81 31 44 292 4 003 87 95101 0 -1 -2 002 21 29 09 1.7 -1.7 28.81 32 44 295 7 001 76 83 86 0 -1 -2 003 22 29 10 1.6 -1.4 28.81 32 45 299 12 003 78 86 92 0 -1 -2 000 23 29 11 1.0 -0.3 28.83 33 46 296 8 000 90 98106 0 -1 -2 004 24 29 12 0.6 -0.5 28.84 33 48 294 7 -013 92 98104 0 -2 -3 050 25 29 13 1.0 -0.9 28.83 32 46 292 5 003 86 92106 0 -1 -2 079 26 29 14 0.9 -1.3 28.85 32 47 296 8 003 84 90100 0 -1 -3 018 27 29 15 0.6 -0.6 28.84 30 44 303 16 -028 91 94103 0 -1 -3 059 28 29 16 1.9 -2.5 28.85 32 43 296 8 004 70 77 90 0 -1 -2 036 29 29 17 1.2 -1.4 28.84 34 48 306 19 -003 81 89101 0 -1 -2 013 30 29 18 1.6 -2.3 28.84 32 42 298 10 006 73 81 82 0 -1 -2 004 31 29 19 1.3 -1.7 28.83 31 42 302 15 002 79 87100 0 -1 -2 000 32 29 20 0.7 -0.8 28.82 29 41 306 19 004 89 94105 0 -2 -3 017 33 29 21 1.2 -1.5 28.81 30 41 305 18 003 81 89 96 0 -1 -3 005 34 29 22 0.9 -0.9 28.80 28 39 303 16 003 86 94 88 0 -1 -3 005 35 29 23 1.0 -1.2 28.78 28 39 300 13 -004 84 91 98 0 -1 -3 001 36 30 00 0.9 -0.9 28.77 28 39 306 18 000 86 93 97 0 -1 -2 025 37 30 01 1.3 -1.3 28.77 28 37 297 10 000 80 89 96 0 -1 -2 000 38 30 02 0.8 -0.4 28.77 26 36 295 8 -002 91 98105 0 -1 -3 012 39 30 03 0.9 -0.3 28.77 26 36 294 7 002 91 97 90 0 -1 -2 035 40 30 04 1.4 -1.7 28.77 28 38 290 3 000 78 87 91 0 -1 -2 000 41 30 05 0.9 -0.8 28.77 26 36 288 1 001 87 96103 0 -1 -3 002 42 30 06 1.2 -1.7 28.77 26 35 288 1 001 79 83 63 0 -1 -3 020 43 30 07 0.8 -2.4 28.78 29 40 289 2 -006 77 84 98 0 -2 -3 001 44 30 08 0.5 -1.0 28.78 29 39 291 3 -003 89 96103 -1 -2 -3 016 45 30 09 1.0 -1.8 28.78 29 39 282 355 -001 79 88102 0 -1 -3 011 46 30 10 0.9 -1.2 28.79 28 38 278 351 -001 85 94 97 0 -2 -3 011 47 30 11 0.6 -0.2 28.81 26 35 268 340 -007 94 99106 0 -2 -3 036 48 30 12 1.0 -2.4 28.84 26 33 249 322 000 76 85 96 0 -2 -3 022 49 30 13 0.3 -2.4 28.88 27 37 256 329 -001 80 89 94 -1 -2 -4 009 50 30 14 0.5 -2.3 28.90 28 39 259 332 000 80 89 96 -1 -2 -3 012 51 30 15 0.2 -1.9 28.92 29 40 260 332 000 84 93 98 -1 -2 -4 015 52 30 16 0.3 -2.1 28.93 30 41 259 332 -001 82 92 99 -1 -2 -4 020 53 30 17 0.3 -2.2 28.95 31 42 259 332 000 81 91 97 -1 -2 -4 012 54 30 18 0.4 -2.4 28.97 32 43 259 331 000 80 89 97 -1 -2 -4 007 55 30 19 0.3 -2.3 28.98 33 44 258 331 000 81 90 97 -1 -2 -4 006 56 30 20 0.3 -2.2 29.00 32 44 256 328 000 82 92101 -1 -2 -4 010 57 30 21 0.4 -2.3 29.02 32 44 253 325 000 81 90100 -1 -2 -4 011 58 30 22 0.4 -1.9 29.04 32 45 251 323 000 83 93 99 -1 -2 -3 012 59 30 23 0.5 -1.6 29.07 32 45 246 319 000 84 94100 -1 -2 -3 020 60 01 00 0.6 -1.8 29.10 33 45 239 312 000 82 92 97 -1 -2 -3 012 61 01 01 0.7 -1.8 29.15 31 43 237 309 000 82 92 95 -1 -2 -3 007 62 01 02 0.6 -2.2 29.19 32 45 239 312 002 79 87 95 -1 -2 -3 018 63 01 03 0.8 -2.5 29.23 31 43 238 311 001 76 85 87 0 -2 -3 000 64 01 04 1.1 -2.5 29.26 31 43 241 314 001 75 82 88 0 -1 -3 000 65 01 05 1.0 -2.1 29.30 32 44 236 308 000 78 89 97 0 -2 -3 000 66 01 06 0.8 -1.3 29.33 30 42 237 310 001 85 93105 0 -2 -3 008 67 01 07 1.2 -1.6 29.37 30 40 232 305 002 80 89 89 0 -1 -3 000 68 01 08 1.2 -1.4 29.41 29 39 234 307 001 81 91 88 0 -1 -3 000 69 01 09 1.3 -1.8 29.45 28 37 233 306 000 78 87 91 0 -1 -3 000 70 01 10 1.2 -2.4 29.49 29 39 237 310 001 74 83 87 0 -1 -3 000 71 01 11 0.7 -1.5 29.52 29 40 238 310 001 84 94105 0 -2 -3 002 72 01 12 1.1 -2.0 29.55 29 38 235 307 000 77 87 88 0 -1 -3 001 73 01 13 1.2 -2.3 29.58 27 36 236 308 001 75 84 91 0 -1 -3 000 74 01 14 0.9 -1.7 29.61 25 33 239 311 001 81 91 89 0 -2 -3 000 75 01 15 0.7 -1.3 29.63 23 30 242 315 001 85 95 93 0 -2 -3 003 76 01 16 0.4 -1.0 29.64 22 30 245 318 000 89 95107 -1 -2 -3 019 77 01 17 0.8 -2.2 29.66 22 28 245 318 000 78 88 97 0 -2 -3 013 78 01 18 0.8 -2.4 29.67 19 24 250 323 000 77 88 87 0 -2 -3 000 79 01 19 0.7 -2.3 29.67 17 22 253 325 000 78 84 92 0 -2 -3 000 80 01 20 0.7 -2.1 29.68 16 22 252 325 000 79 84 99 0 -2 -3 000 81 01 21 0.6 -1.7 29.69 16 20 250 322 000 83 89102 -1 -2 -3 001 82 01 22 0.5 -1.3 29.70 15 18 249 322 000 87 91105 -1 -2 -3 003 83 01 23 0.6 -1.3 29.71 12 15 249 321 000 86 88103 -1 -2 -3 000 84 02 00 0.7 -1.0 29.72 11 13 253 325 000 87 92 96 0 -2 -3 000 85 02 01 0.7 -0.8 29.75 10 12 255 328 000 89 93 94 0 -2 -3 000 86 02 02 0.8 -0.6 29.77 9 11 253 326 000 90 93 96 0 -2 -3 000 87 02 03 0.9 -0.5 29.79 8 10 255 328 000 90 93102 0 -1 -2 000 88 02 04 1.0 -0.3 29.81 7 10 254 326 000 91 91105 0 -1 -2 000 89 02 05 1.1 -0.1 29.83 7 9 256 329 000 91 89106 0 -1 -2 000 90 02 06 1.3 0.2 29.85 6 9 262 335 000 92 90105 0 -1 -2 000 91 02 07 1.5 0.5 29.88 7 10 265 338 001 93 96104 0 -1 -2 000 92 02 08 1.6 0.6 29.89 8 11 271 344 000 93 93103 0 0 -1 000 93 02 09 1.6 0.5 29.92 9 12 267 340 002 91 81102 0 0 -1 000 94 02 10 1.6 0.4 29.93 9 12 272 344 002 91 76104 0 0 -1 000 95 02 11 1.6 0.6 29.94 10 13 291 3 000 93 77103 0 0 -1 000 96 02 12 1.6 1.0 29.95 10 13 307 19 002 96 87 99 0 0 -1 000 97 02 13 1.6 1.4 29.96 12 16 306 19 000 99100 99 0 0 0 000 98 02 14 1.7 1.6 29.98 12 18 302 15 000 100100100 0 0 0 000 99 02 15 1.8 1.7 29.97 11 17 312 24 -001 100100100 1 1 0 000 100 02 16 1.8 1.7 29.96 13 19 317 29 000 100100 91 1 1 2 000 101 02 17 1.9 1.8 29.95 17 24 314 27 -004 100 99 81 1 3 2 000 102 02 18 1.4 1.3 29.94 21 27 310 22 000 100 94 84 0 3 4 000 103 02 19 1.1 1.0 29.91 21 29 313 26 -004 100100 74 0 1 3 000 104 02 20 1.3 1.2 29.91 23 33 309 21 000 100101 59 0 0 0 000 105 02 21 1.2 1.0 29.90 23 32 306 18 -002 100101 33 0 -1 -1 001 106 02 22 1.2 1.1 29.89 24 34 306 19 -003 100101 41 0 0 -1 000 107 02 23 1.4 1.2 29.87 25 35 309 22 -002 100100 64 0 0 0 000 108 03 00 1.5 1.4 29.84 26 37 313 26 -001 100100 91 0 0 4 000 109 03 01 1.8 1.6 29.81 25 39 324 36 000 99 99 87 0 1 3 000 110 03 02 2.3 2.1 29.79 26 41 324 37 000 100100 91 1 1 3 000 111 03 03 2.9 2.6 29.75 27 48 329 41 000 98100 93 2 2 3 002 112 03 04 3.4 3.1 29.71 28 51 329 41 001 98 97 90 3 3 4 002 113 03 05 3.6 3.3 29.68 29 50 327 39 000 99100 92 3 3 3 024 114 03 06 3.7 3.6 29.65 31 51 327 40 000 100100 89 3 3 3 007 115 03 07 3.9 3.8 29.62 31 52 327 39 000 100100 90 3 3 3 001 116 03 08 3.8 3.7 29.60 30 51 331 44 -004 100100 99 3 3 3 009 117 03 09 3.9 3.8 29.58 30 51 326 38 -003 99100100 3 3 3 059 118 03 10 3.8 3.7 29.56 26 42 312 25 -004 100100101 3 2 2 066 119 03 11 1.9 1.4 29.58 19 25 265 337 -005 96100101 0 0 -1 040 120 03 12 1.2 0.5 29.58 14 24 267 339 -006 96 92 98 0 0 -1 024 * 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.