Heard Island site lat/lon = (-53.0000,72.6000) cell lat/lon = (-53.0015,72.5908) Forecast initialized at 2026-01-10/12 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 10 12 4.2 2.8 29.53 30 31 349 62 000 89 92 62 3 3 3 000 1 10 13 4.4 2.9 29.48 31 49 354 66 -002 89 95 80 3 3 4 000 2 10 14 4.5 3.4 29.46 32 51 349 62 -013 93 99100 3 3 3 035 3 10 15 4.7 4.0 29.42 32 51 344 56 003 95100100 4 3 3 105 4 10 16 5.0 4.7 29.40 31 50 336 49 -003 98100100 4 4 4 041 5 10 17 5.3 5.2 29.37 29 47 328 41 -004 100100100 5 4 4 016 6 10 18 5.4 5.2 29.37 25 40 314 27 -003 99100100 5 4 3 004 7 10 19 4.5 4.3 29.37 22 34 299 12 -002 100 98 54 3 2 1 000 8 10 20 4.1 2.7 29.39 20 30 296 9 -002 90 95 53 3 1 0 000 9 10 21 3.7 2.4 29.37 19 31 300 12 -005 90 98 91 2 1 0 000 10 10 22 3.8 2.2 29.39 21 31 306 18 -002 88 92103 2 1 0 000 11 10 23 3.9 2.1 29.39 21 32 312 24 -002 87 91103 2 1 0 002 12 11 00 3.9 2.0 29.41 23 34 310 22 000 86 89103 2 1 0 003 13 11 01 3.9 1.3 29.40 23 35 319 31 -001 81 78 86 2 1 0 000 14 11 02 3.9 1.7 29.37 25 37 318 31 -001 84 93 80 2 1 0 000 15 11 03 3.2 2.1 29.37 29 41 309 21 -004 92100 95 1 0 0 083 16 11 04 4.0 1.9 29.38 27 41 299 11 -002 84 93 83 2 1 0 001 17 11 05 3.5 2.1 29.39 30 43 300 12 -002 90 98103 2 1 0 028 18 11 06 4.0 1.6 29.40 30 44 294 7 000 82 90 92 2 1 0 003 19 11 07 3.8 1.7 29.43 31 46 290 3 000 85 94 98 2 1 0 013 20 11 08 3.9 1.5 29.45 31 45 286 359 000 83 90 95 2 1 0 001 21 11 09 3.9 1.2 29.47 30 44 284 356 000 81 88 95 2 1 0 000 22 11 10 3.9 1.2 29.49 30 44 285 357 000 80 88 96 2 1 0 000 23 11 11 3.9 1.3 29.51 29 42 285 357 -001 82 89 95 2 1 0 000 24 11 12 3.9 1.3 29.52 27 41 288 0 000 82 89 94 2 1 0 000 25 11 13 3.8 1.8 29.51 26 39 297 10 -001 85 94102 2 1 0 002 26 11 14 3.5 2.3 29.50 28 41 301 14 -002 91 99102 2 1 0 025 27 11 15 3.7 2.3 29.48 29 42 305 17 -005 90100102 2 1 0 026 28 11 16 3.5 2.4 29.47 30 45 306 18 -006 92100101 2 1 0 059 29 11 17 3.9 2.7 29.44 32 47 303 15 -006 91100101 2 1 0 066 30 11 18 4.1 2.9 29.44 32 48 297 10 -001 92100101 3 1 1 066 31 11 19 4.2 3.2 29.42 31 46 294 7 000 93100100 3 2 1 027 32 11 20 4.3 3.4 29.42 30 45 295 7 -002 94100100 3 2 1 021 33 11 21 4.3 3.6 29.41 29 46 295 8 000 95100100 3 2 1 022 34 11 22 4.4 3.9 29.42 31 46 290 3 -001 96100101 3 2 1 008 35 11 23 4.5 3.1 29.43 27 45 293 5 -001 90 93102 3 2 1 008 36 12 00 4.4 2.9 29.42 25 40 289 2 -001 89 92102 3 2 1 003 37 12 01 4.2 3.8 29.41 23 37 296 9 -001 97100101 3 2 1 038 38 12 02 3.9 3.0 29.40 26 39 291 4 001 93100102 2 1 0 094 39 12 03 3.7 2.3 29.41 27 39 281 353 000 90 98103 2 1 0 044 40 12 04 3.9 1.4 29.41 26 40 284 357 000 82 86 79 2 1 0 000 41 12 05 3.7 1.2 29.42 28 40 284 357 -001 82 90 83 2 0 0 000 42 12 06 3.7 1.0 29.42 29 42 283 356 -002 81 89101 2 0 0 000 43 12 07 3.5 1.3 29.42 29 42 283 356 -002 84 94 95 2 0 0 000 44 12 08 3.2 1.6 29.42 29 41 287 0 -001 88 98100 1 0 0 004 45 12 09 3.0 1.8 29.42 28 41 284 357 -002 91 99103 1 0 0 018 46 12 10 3.9 1.1 29.40 27 40 286 358 -001 80 87 88 2 1 0 003 47 12 11 3.3 1.4 29.41 29 43 287 359 -005 86 94 96 1 0 0 020 48 12 12 3.6 1.3 29.42 30 43 286 358 -002 84 93 97 2 0 0 003 49 12 13 3.6 1.3 29.42 29 42 287 0 -002 83 92103 2 0 0 001 50 12 14 3.3 1.2 29.42 30 42 285 358 -004 85 93 88 1 0 0 019 51 12 15 3.4 1.2 29.41 30 43 286 358 -002 84 93100 2 0 0 000 52 12 16 3.7 0.6 29.40 32 44 279 351 000 78 85 93 2 1 0 013 53 12 17 3.6 0.8 29.41 33 46 277 350 000 80 87103 2 0 0 015 54 12 18 3.4 1.0 29.42 32 45 278 351 -001 82 91 92 2 0 0 001 55 12 19 3.7 0.9 29.42 31 45 276 349 000 80 88 95 2 0 0 006 56 12 20 3.4 1.0 29.43 33 47 271 343 002 83 92 99 2 0 0 003 57 12 21 3.2 1.1 29.45 30 43 266 339 -002 85 93 98 1 0 0 001 58 12 22 3.6 0.9 29.47 31 44 265 338 -002 81 89104 2 0 0 035 59 12 23 3.3 0.9 29.49 29 41 265 338 000 83 92 88 1 0 0 000 60 13 00 3.1 1.0 29.51 28 41 262 334 -001 85 91 97 1 0 0 004 61 13 01 3.6 0.4 29.53 29 40 264 336 000 77 84 89 2 0 0 000 62 13 02 3.5 0.5 29.54 28 40 267 340 001 79 86 95 2 0 0 000 63 13 03 2.8 1.3 29.55 27 38 267 339 001 89 97104 1 0 0 007 64 13 04 3.5 0.5 29.56 27 38 264 337 000 78 86 86 2 0 0 012 65 13 05 2.9 1.1 29.57 28 38 271 344 000 87 96 77 1 0 -1 000 66 13 06 3.5 0.5 29.57 27 39 267 340 -001 79 87100 2 0 0 000 67 13 07 3.6 0.4 29.57 26 37 272 345 000 78 85 88 2 0 0 000 68 13 08 3.3 0.6 29.57 25 35 274 347 000 81 89 95 1 0 0 000 69 13 09 3.3 0.8 29.56 24 33 278 351 -001 82 89 94 1 0 0 000 70 13 10 3.3 0.7 29.55 23 32 282 354 000 82 89 96 1 0 0 000 71 13 11 3.4 1.0 29.52 20 27 292 4 000 83 91 94 1 0 0 000 72 13 12 2.7 1.8 29.47 18 24 302 15 -003 94100103 1 0 0 010 73 13 13 2.2 1.7 29.43 18 25 311 23 -002 97100 99 0 0 0 064 74 13 14 1.8 1.5 29.36 17 23 329 42 -003 98100100 0 0 0 102 75 13 15 1.7 1.3 29.28 18 25 349 62 -006 98100102 0 0 0 107 76 13 16 1.8 1.3 29.20 18 25 2 74 -002 97100100 0 0 0 101 77 13 17 3.2 2.6 29.11 18 27 356 69 -009 96100100 2 2 2 096 78 13 18 4.7 4.6 29.04 19 38 308 21 -003 100100100 4 4 3 129 79 13 19 4.6 4.5 28.99 24 40 302 14 000 100100100 4 4 3 022 80 13 20 4.7 4.6 28.95 26 42 297 9 000 100100100 4 4 3 026 81 13 21 4.8 4.6 28.91 27 45 290 3 000 100100100 4 3 3 017 82 13 22 4.7 4.5 28.89 30 48 284 357 000 100100100 4 3 2 008 83 13 23 3.9 3.5 28.88 34 49 277 349 -003 97100101 2 2 1 010 84 14 00 3.8 2.6 28.88 35 50 273 345 001 92100102 2 1 0 032 85 14 01 3.6 2.4 28.89 33 44 261 334 000 91100102 2 1 0 053 86 14 02 2.4 1.1 28.97 30 41 194 267 001 91 96103 0 0 -1 016 87 14 03 2.8 1.2 29.09 28 38 213 285 003 88 97100 1 0 0 004 88 14 04 2.8 1.1 29.18 26 35 219 292 004 88 94103 1 0 0 002 89 14 05 3.1 0.7 29.24 25 34 225 298 002 83 90 98 1 0 -1 001 90 14 06 3.3 -0.4 29.29 24 33 235 308 000 74 78 85 1 0 0 000 91 14 07 3.4 -0.2 29.34 23 31 240 312 000 75 81 89 1 0 0 000 92 14 08 3.4 -0.0 29.37 20 27 247 320 000 76 82 84 2 0 0 000 93 14 09 3.3 0.7 29.40 19 25 258 331 000 81 87 78 1 0 0 000 94 14 10 3.2 1.4 29.41 18 25 264 337 000 87 93 97 1 0 0 000 95 14 11 3.3 1.7 29.42 18 26 269 342 000 88 97 97 1 0 0 000 96 14 12 3.4 1.9 29.42 18 26 268 340 000 89 97 93 2 0 0 000 97 14 13 3.3 2.1 29.42 17 24 268 341 000 91 99102 2 0 0 002 98 14 14 3.3 2.1 29.43 18 26 266 339 000 91 99103 1 0 0 012 99 14 15 3.3 1.8 29.43 20 29 263 336 000 89 98103 1 0 0 021 100 14 16 3.5 1.9 29.43 18 27 265 338 -001 88 97102 2 0 0 002 101 14 17 3.4 2.1 29.43 18 25 273 346 -002 91 99103 2 0 0 000 102 14 18 3.4 2.3 29.42 18 26 271 344 000 92 99102 2 0 0 000 103 14 19 3.3 2.4 29.42 18 25 271 343 001 93100102 2 0 0 010 104 14 20 3.4 2.5 29.42 17 24 261 333 000 93100102 2 1 0 010 105 14 21 3.1 2.0 29.43 17 22 240 313 000 91 98103 1 0 0 001 106 14 22 3.0 1.2 29.45 16 22 235 307 000 87 78 83 1 0 0 000 107 14 23 3.1 1.1 29.45 16 23 242 314 002 85 81 88 1 0 0 000 108 15 00 3.0 1.4 29.44 16 21 242 315 001 88 97 90 1 0 -1 000 109 15 01 2.9 1.4 29.43 15 20 239 311 -001 89 96102 1 0 -1 002 110 15 02 3.0 -0.1 29.44 15 20 235 308 -001 78 78 87 1 0 -1 003 111 15 03 3.0 0.1 29.44 15 21 245 317 000 79 85 85 1 0 -1 000 112 15 04 3.1 0.3 29.44 16 22 245 317 001 80 85 86 1 0 -1 000 113 15 05 3.1 0.6 29.44 15 21 253 325 000 82 87 88 1 0 0 000 114 15 06 3.1 1.0 29.43 17 23 259 332 -002 84 93 95 1 0 0 000 115 15 07 3.1 1.3 29.44 16 23 258 330 000 87 89 84 1 0 0 000 116 15 08 3.1 1.5 29.45 18 25 264 337 000 88 96 97 1 0 0 001 117 15 09 2.8 1.3 29.44 21 29 250 322 000 89 93 90 1 0 0 009 118 15 10 3.3 1.1 29.46 21 28 241 314 -005 84 94104 1 0 0 000 119 15 11 3.3 0.8 29.47 22 30 240 312 000 82 89 97 1 0 0 000 120 15 12 3.2 -0.0 29.51 24 33 228 300 002 77 82 71 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.