Heard Island site lat/lon = (-53.0000,72.6000) cell lat/lon = (-53.0015,72.5908) Forecast initialized at 2025-12-23/00 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 23 00 2.4 -0.2 29.51 22 23 253 326 000 80 86 78 0 0 -1 000 1 23 01 2.3 -0.4 29.52 21 28 255 328 000 80 88 82 0 0 -2 000 2 23 02 2.3 -0.6 29.56 21 27 256 328 -001 79 87 86 0 0 -2 000 3 23 03 2.4 -0.8 29.56 21 27 256 328 000 77 85 84 0 0 -2 000 4 23 04 2.3 -0.9 29.59 21 27 255 327 000 77 85 86 0 0 -2 000 5 23 05 2.4 -1.1 29.59 20 26 257 329 000 75 82 81 0 0 -2 000 6 23 06 2.5 -1.2 29.61 19 25 260 333 000 74 80 76 1 0 -1 000 7 23 07 2.6 -1.1 29.62 19 25 259 332 000 74 80 81 1 0 -1 000 8 23 08 2.6 -1.1 29.62 19 24 258 330 000 74 80 84 1 0 -1 000 9 23 09 2.5 -1.0 29.63 18 24 253 325 001 75 80 89 0 0 -2 000 10 23 10 2.3 -1.1 29.63 16 21 249 322 000 76 82 87 0 0 -2 000 11 23 11 2.6 -0.7 29.65 14 20 257 329 000 76 81 84 1 0 -1 000 12 23 12 2.7 -0.1 29.65 14 20 262 335 000 79 83 77 1 0 -1 000 13 23 13 2.7 0.1 29.65 13 18 261 333 000 81 85 75 1 0 -1 000 14 23 14 2.7 0.2 29.67 13 17 262 334 000 82 86 81 1 0 -1 000 15 23 15 2.5 0.3 29.67 13 16 267 340 000 83 87 90 0 0 -1 000 16 23 16 2.2 0.3 29.69 13 16 268 341 000 86 89101 0 0 -2 002 17 23 17 2.1 0.3 29.69 11 15 268 341 -001 87 87100 0 0 -2 004 18 23 18 2.4 0.4 29.69 11 16 270 342 000 85 92 91 0 0 -1 002 19 23 19 2.7 0.6 29.68 12 16 267 339 000 85 89 86 1 0 -1 000 20 23 20 2.5 0.4 29.69 13 17 258 331 001 84 88 87 0 0 -1 000 21 23 21 2.4 -0.1 29.70 12 16 257 329 000 82 79 77 0 0 -1 000 22 23 22 2.4 0.2 29.71 13 18 261 334 000 84 93 69 0 0 -1 000 23 23 23 2.4 0.5 29.72 12 16 258 331 001 86 82 80 0 0 -1 000 24 24 00 2.3 0.8 29.73 10 13 262 335 001 90 85 97 0 0 -1 001 25 24 01 2.0 1.2 29.73 8 11 274 347 000 95 93104 0 0 -1 016 26 24 02 2.1 1.3 29.75 8 12 284 357 003 94 97104 0 0 -1 030 27 24 03 2.6 1.3 29.74 9 12 293 6 000 90100 98 1 0 -1 002 28 24 04 2.4 1.0 29.74 11 12 286 359 001 90100 86 0 0 -1 000 29 24 05 2.3 0.9 29.74 8 9 314 27 000 90 80 70 0 0 0 000 30 24 06 2.4 1.2 29.75 11 14 327 40 000 92 83 77 0 0 0 000 31 24 07 2.8 1.7 29.74 13 19 326 39 000 92 99 91 1 0 0 000 32 24 08 2.9 2.1 29.70 14 20 333 45 000 95100 97 1 0 0 002 33 24 09 2.8 2.1 29.67 17 24 330 43 000 95100 99 1 0 0 017 34 24 10 2.6 2.1 29.63 20 27 333 45 -003 96100 98 1 0 0 052 35 24 11 2.5 1.9 29.60 23 32 332 45 -004 96100100 1 0 0 087 36 24 12 3.2 2.6 29.54 25 37 333 46 -001 96100100 2 1 1 098 37 24 13 3.6 3.1 29.50 26 40 322 34 -005 97100100 2 2 2 105 38 24 14 4.1 3.9 29.46 26 42 308 21 -006 98100100 3 3 2 203 39 24 15 4.4 4.2 29.43 26 44 298 11 -002 99100100 4 3 3 071 40 24 16 4.7 4.5 29.42 28 46 287 0 -003 100100100 4 3 3 006 41 24 17 4.6 4.5 29.41 27 45 281 354 -005 100100100 4 3 3 002 42 24 18 4.4 4.3 29.42 27 44 277 350 -006 100100100 4 3 2 000 43 24 19 4.2 4.1 29.43 26 42 272 345 -006 100100 94 3 2 1 001 44 24 20 3.7 3.6 29.45 26 40 268 341 -005 100100 74 2 1 0 004 45 24 21 3.2 3.0 29.47 26 38 263 336 -003 100100 61 2 1 0 004 46 24 22 2.7 2.3 29.48 24 34 261 333 -002 98100 54 1 0 0 003 47 24 23 2.6 1.7 29.50 23 32 261 333 -001 93100 62 1 0 -1 001 48 25 00 2.6 1.3 29.51 21 30 263 336 000 90100 69 1 0 -1 002 49 25 01 2.6 1.0 29.52 21 29 266 339 -001 88100 75 1 0 -1 002 50 25 02 2.6 0.8 29.51 20 27 267 339 -001 87 98 68 1 0 -1 001 51 25 03 2.5 0.6 29.51 19 26 269 342 000 86 97 63 1 0 -1 000 52 25 04 2.6 0.6 29.51 19 26 276 348 -001 85 96 71 1 0 -1 000 53 25 05 2.6 0.5 29.51 18 25 274 346 000 85 95 68 1 0 -1 000 54 25 06 2.6 0.4 29.51 18 24 272 345 000 84 93 75 1 0 -1 000 55 25 07 2.7 0.5 29.50 18 24 271 343 000 84 94 96 1 0 -1 000 56 25 08 2.6 0.6 29.49 17 23 260 333 000 85 95104 1 0 -1 000 57 25 09 2.7 0.2 29.49 16 24 257 330 -002 82 80104 1 0 -1 002 58 25 10 2.9 -0.0 29.50 16 24 265 337 000 79 76104 1 0 0 001 59 25 11 3.0 0.1 29.51 17 24 265 337 000 79 75100 1 0 0 000 60 25 12 2.9 0.2 29.52 18 26 258 331 002 81 86103 1 0 0 000 61 25 13 2.8 0.4 29.54 19 27 257 329 -001 82 88 90 1 0 0 000 62 25 14 2.9 0.4 29.55 19 28 258 331 -001 82 88 94 1 0 -1 000 63 25 15 2.9 0.3 29.56 20 28 255 327 001 81 88 90 1 0 -1 000 64 25 16 2.8 0.1 29.58 21 28 250 322 001 80 88 81 1 0 -1 000 65 25 17 2.8 0.1 29.60 21 29 252 324 001 81 88 91 1 0 -1 000 66 25 18 2.7 0.2 29.63 22 28 249 321 000 82 91 75 1 0 -1 000 67 25 19 2.7 -0.1 29.65 21 28 247 320 000 79 87 75 1 0 -1 000 68 25 20 2.8 -0.3 29.67 21 29 252 325 000 78 85 76 1 0 -1 000 69 25 21 2.8 0.1 29.68 21 29 256 329 001 81 88 81 1 0 -1 000 70 25 22 2.8 0.9 29.70 21 29 260 332 000 86 94 81 1 0 -1 000 71 25 23 2.9 0.9 29.72 20 28 258 331 001 85 93 81 1 0 -1 000 72 26 00 2.9 0.9 29.74 19 26 260 332 001 85 95 68 1 0 -1 000 73 26 01 2.8 0.9 29.77 18 24 259 332 000 86 96 73 1 0 -1 000 74 26 02 2.8 0.9 29.78 17 22 260 333 001 86 96 77 1 0 -1 000 75 26 03 2.8 1.1 29.80 16 21 265 338 000 88 94 85 1 0 0 000 76 26 04 2.9 1.1 29.82 17 23 272 344 000 87 90 77 1 0 0 000 77 26 05 2.9 1.0 29.83 17 23 272 345 000 86 92 72 1 0 0 000 78 26 06 2.9 1.1 29.83 17 23 275 348 000 86 92 84 1 0 -1 000 79 26 07 3.0 0.7 29.84 17 24 270 343 000 83 88 88 1 0 0 000 80 26 08 3.0 0.6 29.85 16 23 271 344 000 82 86 95 1 0 0 000 81 26 09 3.1 0.6 29.86 15 22 277 350 000 82 83 87 1 0 0 000 82 26 10 3.1 0.8 29.87 15 22 281 354 000 83 88 71 1 0 0 000 83 26 11 3.0 1.1 29.87 15 22 288 0 000 86 83 75 1 0 0 000 84 26 12 3.0 1.4 29.88 15 23 292 4 000 88 87 95 1 0 0 000 85 26 13 3.0 1.3 29.88 14 23 298 11 000 87 67 82 1 1 0 000 86 26 14 3.0 1.0 29.87 15 23 304 16 000 85 52 76 1 1 0 000 87 26 15 3.0 1.0 29.86 15 24 313 25 000 85 52 73 1 1 0 000 88 26 16 3.0 1.1 29.85 17 25 319 32 000 86 58 72 1 1 0 000 89 26 17 3.0 1.2 29.85 18 27 321 34 000 87 69 84 1 1 0 000 90 26 18 3.0 1.0 29.84 19 28 323 36 000 86 76 93 1 0 0 000 91 26 19 3.0 0.8 29.82 21 30 327 39 -001 84 70 84 1 0 0 000 92 26 20 3.0 1.0 29.80 22 31 325 37 000 86 88 90 1 0 0 000 93 26 21 3.0 1.5 29.77 22 31 326 38 000 89 95 86 1 0 0 000 94 26 22 3.0 1.3 29.77 22 33 328 41 001 87 93 87 1 0 0 000 95 26 23 3.1 0.8 29.75 24 35 328 40 -001 83 89 75 1 0 0 000 96 27 00 3.1 1.2 29.74 24 35 322 34 -006 86 96 95 1 0 0 007 97 27 01 3.1 1.7 29.73 23 34 319 32 000 90 99 99 1 0 0 035 98 27 02 3.2 1.8 29.72 24 35 318 30 000 90 99100 1 0 0 004 99 27 03 3.2 2.0 29.71 23 34 316 29 000 91100100 2 0 0 005 100 27 04 3.3 2.2 29.70 23 34 313 26 -001 92100100 2 1 0 005 101 27 05 3.2 2.2 29.69 22 32 312 24 -004 92100100 2 1 0 007 102 27 06 3.2 2.2 29.69 21 31 311 23 -002 92100100 2 1 0 001 103 27 07 3.2 2.4 29.69 22 32 308 21 -001 94100100 2 1 0 001 104 27 08 3.2 2.5 29.69 21 31 307 19 000 95100 99 2 1 1 016 105 27 09 3.3 2.6 29.69 21 31 304 17 000 95100100 2 1 1 000 106 27 10 3.4 2.7 29.69 20 31 301 14 -002 96100100 2 1 1 000 107 27 11 3.4 2.9 29.68 18 29 294 6 000 97 98101 2 2 1 000 108 27 12 3.4 3.1 29.69 17 27 290 3 000 98 95 97 2 2 2 000 109 27 13 3.3 3.1 29.69 14 22 294 7 000 100100100 2 1 1 000 110 27 14 3.2 3.1 29.69 12 19 296 8 000 100100100 2 1 0 000 111 27 15 3.1 2.9 29.67 9 15 286 358 000 100100 96 2 1 0 000 112 27 16 2.9 2.8 29.67 6 11 280 353 001 100100 94 2 0 0 000 113 27 17 2.8 2.7 29.67 4 7 301 14 000 100 95 93 1 0 0 000 114 27 18 2.7 2.6 29.65 2 5 319 32 002 100 88 93 1 0 0 000 115 27 19 2.7 2.5 29.62 2 2 44 116 002 100 85 94 1 0 0 000 116 27 20 2.6 2.5 29.60 4 5 72 144 -001 100 85 96 1 0 0 000 117 27 21 2.7 2.2 29.57 6 9 89 162 -002 97 87 98 1 0 0 000 118 27 22 2.7 2.1 29.53 10 13 101 173 000 96 93100 1 0 0 000 119 27 23 2.7 2.1 29.49 12 16 106 179 000 96 99100 1 1 0 000 120 28 00 2.7 2.3 29.44 15 21 102 175 000 98100100 1 1 0 000 * 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.