Heard Island site lat/lon = (-53.0000,72.6000) cell lat/lon = (-53.0015,72.5908) Forecast initialized at 2025-09-27/12 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 27 12 2.1 1.9 28.44 9 11 9 82 000 99100 99 1 1 0 000 1 27 13 1.8 1.7 28.42 8 13 291 4 000 100100102 0 0 0 107 2 27 14 1.1 0.8 28.41 13 20 251 324 -001 99 99 98 0 0 0 073 3 27 15 1.1 0.8 28.39 17 24 247 320 002 98100 96 0 0 -1 069 4 27 16 1.1 0.5 28.38 20 27 245 318 -004 95100 95 0 -1 -2 052 5 27 17 1.2 -0.3 28.38 22 30 244 317 002 89 91 89 0 -1 -2 014 6 27 18 1.3 -0.6 28.40 23 30 250 322 007 85 97 99 0 -1 -2 000 7 27 19 1.3 -1.7 28.39 26 34 251 324 000 79 86 85 0 -1 -3 000 8 27 20 1.1 -2.7 28.41 26 35 258 331 000 73 79 77 0 -1 -3 000 9 27 21 1.0 -3.2 28.42 25 34 267 339 003 70 76 80 0 -2 -3 000 10 27 22 0.7 -2.5 28.42 27 35 272 345 006 77 85 90 -1 -2 -3 000 11 27 23 0.4 -2.0 28.43 26 34 278 351 002 83 91100 -1 -2 -3 003 12 28 00 0.7 -2.4 28.45 28 37 278 350 007 77 86 73 0 -2 -3 016 13 28 01 0.3 -1.1 28.45 26 36 284 356 006 89 94 91 -1 -2 -3 026 14 28 02 0.5 -1.6 28.47 28 38 279 352 -001 85 94 93 -1 -2 -3 004 15 28 03 1.2 -3.7 28.47 27 35 283 355 003 66 72 65 0 -1 -3 002 16 28 04 0.9 -2.2 28.48 28 38 295 7 000 78 85 83 0 -2 -3 000 17 28 05 0.5 -1.5 28.48 28 38 296 9 -007 85 93 98 -1 -2 -3 006 18 28 06 1.5 -2.8 28.47 30 40 295 7 002 70 78100 0 -1 -2 006 19 28 07 0.2 -1.1 28.47 29 40 291 3 -015 90 95 99 -1 -2 -3 099 20 28 08 0.9 -3.0 28.48 26 34 291 3 003 72 75 71 0 -2 -3 015 21 28 09 1.3 -3.4 28.48 25 34 298 10 005 68 73 65 0 -1 -3 000 22 28 10 1.2 -2.2 28.47 28 37 300 13 000 76 84 71 0 -1 -3 000 23 28 11 1.4 -2.9 28.47 26 34 296 8 000 70 76 67 0 -1 -3 000 24 28 12 1.1 -2.6 28.47 27 36 293 6 002 74 82 80 0 -2 -3 000 25 28 13 1.1 -2.0 28.47 26 35 293 5 001 77 86 79 0 -1 -3 000 26 28 14 1.1 -2.0 28.48 27 36 291 4 002 78 87 87 0 -2 -3 000 27 28 15 1.2 -2.3 28.49 27 36 289 2 004 76 84 76 0 -1 -3 000 28 28 16 1.1 -2.6 28.50 29 39 292 4 002 73 81 82 0 -1 -3 000 29 28 17 1.4 -2.8 28.51 28 38 290 2 002 70 76 82 0 -1 -2 001 30 28 18 0.5 -1.6 28.52 29 40 290 3 -006 85 92 99 -1 -2 -3 007 31 28 19 0.9 -1.9 28.53 31 43 292 5 -002 80 88 93 0 -2 -3 009 32 28 20 1.1 -1.9 28.54 31 43 294 7 006 78 86 94 0 -1 -3 009 33 28 21 1.5 -2.4 28.55 32 44 291 4 001 73 81 93 0 -1 -2 000 34 28 22 0.8 -1.1 28.56 31 43 293 6 002 86 91 93 0 -2 -3 010 35 28 23 1.6 -2.3 28.57 31 43 290 3 004 73 81 89 0 -1 -2 000 36 29 00 1.0 -1.6 28.59 33 47 286 359 003 81 88 94 0 -1 -3 028 37 29 01 1.2 -1.7 28.62 30 41 288 1 001 79 86 80 0 -1 -2 000 38 29 02 0.9 -0.7 28.63 29 42 295 7 -018 89 92100 0 -1 -3 018 39 29 03 1.9 -2.7 28.66 33 43 280 352 -001 69 76 81 0 -1 -2 005 40 29 04 1.1 -1.0 28.68 30 44 287 0 -003 85 90100 0 -1 -2 005 41 29 05 0.8 -0.6 28.71 32 46 288 1 -011 90 95105 0 -2 -3 015 42 29 06 1.7 -2.0 28.73 33 44 289 2 002 74 82 81 0 -1 -2 010 43 29 07 1.8 -2.1 28.75 34 46 290 2 000 73 80 76 0 -1 -2 000 44 29 08 1.4 -1.1 28.77 32 44 291 3 000 82 91103 0 -1 -2 000 45 29 09 1.5 -1.4 28.79 33 46 292 5 000 79 87 98 0 -1 -2 012 46 29 10 1.7 -1.6 28.79 33 46 296 9 000 76 84 93 0 -1 -2 000 47 29 11 1.6 -1.5 28.82 34 46 293 6 001 77 86 88 0 -1 -2 000 48 29 12 1.6 -1.1 28.83 33 48 296 9 002 80 88100 0 -1 -2 000 49 29 13 1.8 -2.0 28.83 35 48 298 10 000 73 81 88 0 -1 -2 000 50 29 14 1.5 -1.3 28.83 33 48 302 15 000 80 87 94 0 -1 -2 000 51 29 15 1.1 -0.8 28.84 34 48 300 13 000 86 93 93 0 -1 -2 001 52 29 16 1.1 -1.0 28.84 33 46 304 17 -004 85 91101 0 -1 -2 004 53 29 17 1.7 -1.9 28.82 33 46 303 15 000 75 84 96 0 -1 -2 015 54 29 18 1.4 -1.6 28.81 33 47 304 17 003 79 87 94 0 -1 -2 000 55 29 19 1.8 -1.9 28.80 32 44 306 18 004 74 82 92 0 -1 -2 000 56 29 20 1.8 -2.1 28.79 31 42 304 16 -001 73 80 82 0 -1 -2 000 57 29 21 1.7 -1.8 28.77 28 38 306 19 004 75 83 78 0 -1 -2 000 58 29 22 1.6 -2.0 28.74 29 41 310 23 001 74 81 95 0 -1 -2 000 59 29 23 1.6 -2.1 28.73 31 40 295 8 001 74 82 92 0 -1 -2 000 60 30 00 0.5 -0.0 28.72 25 36 303 16 -031 96 99106 0 -2 -3 044 61 30 01 1.3 -1.5 28.72 27 36 290 3 001 80 86 82 0 -1 -2 128 62 30 02 1.0 -0.6 28.72 28 39 298 10 002 88 98 90 0 -1 -3 003 63 30 03 0.7 -0.8 28.72 27 37 288 1 -003 89 95 86 0 -2 -3 027 64 30 04 1.2 -3.0 28.71 27 37 293 6 004 71 78 87 0 -1 -3 001 65 30 05 0.5 -1.6 28.70 30 42 294 7 -009 84 92 99 -1 -2 -3 015 66 30 06 0.7 -1.3 28.70 27 36 285 358 -001 85 95104 0 -2 -3 004 67 30 07 0.7 -1.0 28.70 28 39 276 348 -003 88 95100 0 -2 -3 016 68 30 08 1.1 -2.1 28.73 27 35 267 339 -001 77 86 95 0 -2 -3 008 69 30 09 0.5 -2.1 28.76 28 38 263 336 -001 80 89 97 -1 -2 -3 009 70 30 10 0.5 -2.4 28.78 29 40 264 337 000 79 88102 -1 -2 -3 001 71 30 11 0.4 -2.2 28.79 30 41 264 337 000 81 90100 -1 -2 -3 008 72 30 12 0.4 -2.1 28.81 31 43 265 337 -001 82 92 98 -1 -2 -4 010 73 30 13 0.3 -2.1 28.82 32 44 263 335 -001 82 92100 -1 -2 -4 015 74 30 14 0.4 -2.3 28.84 32 45 259 332 -001 81 90 97 -1 -2 -4 009 75 30 15 0.4 -2.2 28.86 33 45 258 331 -001 81 90 99 -1 -2 -4 008 76 30 16 0.5 -2.3 28.88 34 46 255 328 000 80 89 99 -1 -2 -3 007 77 30 17 0.5 -2.0 28.90 33 46 253 326 000 81 91102 -1 -2 -3 006 78 30 18 0.6 -1.9 28.93 33 46 250 322 000 82 92103 -1 -2 -3 010 79 30 19 0.7 -2.0 28.96 32 44 245 318 001 80 89 90 0 -2 -3 006 80 30 20 0.7 -1.4 29.00 32 44 244 316 001 85 94104 0 -2 -3 009 81 30 21 0.8 -1.6 29.03 31 42 239 312 001 82 92 93 0 -2 -3 003 82 30 22 0.8 -1.4 29.07 30 41 240 312 000 84 94 84 0 -2 -3 005 83 30 23 1.0 -2.4 29.11 31 41 239 312 000 76 84 84 0 -2 -3 000 84 01 00 0.8 -1.3 29.15 32 46 242 315 002 84 93101 0 -2 -3 017 85 01 01 1.0 -1.7 29.20 31 42 232 305 000 80 89100 0 -2 -3 000 86 01 02 1.2 -1.9 29.25 32 42 230 303 -003 78 86 84 0 -1 -3 007 87 01 03 0.8 -1.3 29.30 30 42 232 304 001 84 93 95 0 -2 -3 007 88 01 04 1.0 -1.4 29.33 30 42 233 305 002 82 92 95 0 -2 -3 005 89 01 05 0.8 -1.5 29.37 29 39 234 306 001 83 93105 0 -2 -3 002 90 01 06 0.8 -2.1 29.41 30 42 232 304 000 79 86 94 0 -2 -3 024 91 01 07 1.2 -2.5 29.44 28 38 234 307 000 73 82 85 0 -1 -3 001 92 01 08 1.0 -1.8 29.48 29 38 235 308 000 79 89 86 0 -2 -3 000 93 01 09 0.6 -1.4 29.51 28 39 237 309 000 85 95107 -1 -2 -3 003 94 01 10 0.8 -1.9 29.54 29 39 237 309 -001 80 90 85 0 -2 -3 006 95 01 11 0.7 -2.0 29.57 29 38 238 311 000 80 90 90 0 -2 -3 000 96 01 12 0.9 -2.3 29.60 27 36 238 310 000 77 87 89 0 -2 -3 000 97 01 13 0.6 -1.7 29.62 26 35 239 311 000 83 93101 -1 -2 -3 004 98 01 14 0.8 -2.4 29.65 27 36 237 310 000 77 87 90 0 -2 -3 005 99 01 15 0.8 -3.0 29.68 25 32 238 311 000 73 82 89 0 -2 -3 000 100 01 16 1.0 -3.3 29.70 23 30 239 311 000 70 77 76 0 -2 -3 000 101 01 17 0.8 -3.0 29.72 22 29 241 314 000 73 82 73 0 -2 -3 000 102 01 18 0.7 -3.1 29.73 21 27 244 317 000 73 81 72 0 -2 -3 000 103 01 19 0.9 -2.7 29.75 20 27 243 316 000 75 85 69 0 -2 -3 000 104 01 20 1.0 -1.6 29.76 18 27 243 315 000 80 92100 0 -2 -3 000 105 01 21 1.2 -0.8 29.77 16 24 245 318 000 85 97106 0 -1 -2 000 106 01 22 1.4 -0.2 29.79 15 21 250 323 000 88 98101 0 -1 -2 000 107 01 23 1.5 -0.0 29.80 15 20 254 327 000 89 98 99 0 -1 -2 000 108 02 00 1.3 0.2 29.81 15 19 259 332 -001 92 97103 0 -1 -2 003 109 02 01 1.0 0.4 29.82 13 18 267 340 -001 96 95104 0 -1 -2 016 110 02 02 1.1 0.6 29.82 12 17 279 351 -004 96 97102 0 -1 -2 018 111 02 03 1.2 0.5 29.82 12 17 291 4 -003 95 99 95 0 -1 -2 021 112 02 04 1.1 0.6 29.81 13 18 302 14 002 96 94100 0 -1 -1 017 113 02 05 1.4 0.8 29.80 13 19 323 36 000 96100101 0 0 0 007 114 02 06 1.7 1.4 29.79 15 23 326 39 -001 98100100 0 0 0 002 115 02 07 2.1 2.0 29.79 16 26 301 14 001 100100100 1 1 1 004 116 02 08 2.2 2.1 29.80 17 27 288 1 -002 100100 90 1 0 3 000 117 02 09 2.1 2.0 29.81 19 29 287 359 000 100100 89 1 1 5 000 118 02 10 2.2 2.0 29.79 18 29 296 9 002 100 85 78 1 3 6 000 119 02 11 2.1 2.0 29.78 19 31 303 15 000 100 85 76 1 4 5 000 120 02 12 2.1 2.0 29.74 20 30 313 26 -002 100 71 81 1 6 6 000 * 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.