Heard Island site lat/lon = (-53.0000,72.6000) cell lat/lon = (-53.0015,72.5908) Forecast initialized at 2025-12-22/00 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 22 00 3.2 0.1 29.23 33 37 283 356 000 77 84 95 1 0 0 000 1 22 01 3.0 0.1 29.25 30 42 287 0 -001 79 89 96 1 0 -1 001 2 22 02 2.9 0.2 29.28 29 41 291 3 -001 81 89 97 1 0 -1 000 3 22 03 2.9 0.1 29.29 29 41 294 6 -001 80 88101 1 0 -1 000 4 22 04 2.8 0.2 29.30 29 41 295 7 000 81 89 99 1 0 -1 002 5 22 05 2.6 0.5 29.31 29 41 296 8 -001 84 93 99 1 0 -1 004 6 22 06 2.6 0.6 29.33 29 41 295 7 -002 85 93102 1 0 -1 008 7 22 07 2.4 0.9 29.34 29 41 293 5 000 89 97104 0 0 -1 034 8 22 08 2.5 1.0 29.34 29 41 293 5 002 89 97101 1 0 -1 015 9 22 09 2.8 0.6 29.36 29 40 292 5 -001 84 93 94 1 0 -1 000 10 22 10 2.9 0.5 29.34 29 40 290 2 000 83 92100 1 0 -1 001 11 22 11 2.9 0.4 29.35 28 40 290 2 000 82 91 98 1 0 -1 002 12 22 12 3.0 0.2 29.36 29 41 288 1 001 80 89 97 1 0 -1 000 13 22 13 3.0 0.2 29.38 29 41 290 2 000 80 88 96 1 0 -1 001 14 22 14 3.0 0.1 29.37 31 43 293 5 001 79 86 94 1 0 -1 000 15 22 15 2.7 0.3 29.37 33 46 289 1 000 83 92104 1 0 -1 002 16 22 16 2.2 1.2 29.38 32 43 273 346 -002 92100104 0 0 -1 048 17 22 17 2.2 1.3 29.41 25 34 271 343 -002 93100104 0 0 -1 048 18 22 18 2.3 1.3 29.42 25 34 267 340 000 93 98104 0 0 -1 066 19 22 19 2.6 0.7 29.44 22 29 251 323 000 86 95 99 1 0 -1 007 20 22 20 2.2 1.2 29.46 21 30 257 330 000 93 95104 0 0 -1 015 21 22 21 2.7 0.5 29.48 22 29 255 328 000 84 92 90 1 0 -1 005 22 22 22 2.5 0.7 29.51 21 30 252 325 001 87 93 88 0 0 -1 005 23 22 23 2.5 0.4 29.53 20 27 255 328 001 84 91 91 1 0 -1 000 24 23 00 2.7 0.1 29.54 20 28 256 329 001 81 88 87 1 0 -1 000 25 23 01 2.8 -0.1 29.55 20 27 257 329 001 79 87 83 1 0 -1 000 26 23 02 2.2 0.8 29.57 19 24 261 333 001 90 96 95 0 0 -1 002 27 23 03 1.8 1.0 29.58 18 23 257 329 000 94 93 97 0 0 -1 040 28 23 04 2.6 -0.9 29.59 20 28 250 323 000 75 78 66 1 0 -1 000 29 23 05 2.5 -1.0 29.62 20 26 249 322 000 75 80 70 0 0 -1 000 30 23 06 2.3 -1.0 29.64 18 23 253 326 000 76 82 86 0 0 -2 000 31 23 07 2.1 0.3 29.65 18 24 262 334 001 87 90 82 0 0 -1 000 32 23 08 2.4 -0.5 29.66 18 25 255 327 000 79 84 82 0 0 -1 000 33 23 09 2.2 -0.6 29.67 20 27 251 324 000 79 85 96 0 0 -2 000 34 23 10 2.0 -0.1 29.68 20 25 258 331 000 85 90 87 0 0 -1 001 35 23 11 2.4 -0.8 29.69 18 24 256 329 000 78 83 74 0 0 -1 000 36 23 12 2.7 -0.8 29.70 17 24 257 330 000 75 82 82 1 0 -1 000 37 23 13 2.7 -0.4 29.70 17 22 261 334 000 77 84 79 1 0 -1 000 38 23 14 2.7 -0.4 29.71 16 22 262 334 000 77 83 79 1 0 -1 000 39 23 15 2.6 -0.5 29.71 16 22 264 337 000 78 83 89 1 0 -1 000 40 23 16 2.0 0.3 29.72 16 21 268 341 000 88 91100 0 0 -2 002 41 23 17 2.1 0.5 29.71 15 21 268 341 -001 89 90 95 0 0 -1 004 42 23 18 2.4 0.0 29.71 15 20 261 333 001 82 91 79 0 0 -1 000 43 23 19 2.3 -0.4 29.71 15 19 256 329 001 81 81 89 0 0 -1 000 44 23 20 2.1 -0.4 29.72 14 19 260 332 000 82 72 97 0 0 -1 000 45 23 21 2.3 -0.3 29.72 12 19 266 339 001 81 81 91 0 0 -1 000 46 23 22 2.5 0.0 29.72 12 16 269 342 000 82 90 86 0 0 -1 000 47 23 23 2.5 0.3 29.74 13 16 265 338 000 84 90 88 1 0 -1 000 48 24 00 2.6 0.4 29.74 9 13 258 331 000 84 82 89 1 0 -1 000 49 24 01 2.6 0.6 29.75 8 11 271 344 000 86 80 91 1 0 -1 000 50 24 02 2.5 0.9 29.76 8 10 291 4 001 88 83 92 0 0 -1 000 51 24 03 2.5 1.0 29.76 8 11 309 21 002 89 77 93 0 0 -1 000 52 24 04 2.5 1.1 29.75 9 12 335 47 001 90 79102 0 0 -1 000 53 24 05 2.4 1.2 29.74 12 16 343 56 000 91 86103 0 0 -1 000 54 24 06 2.4 1.3 29.73 14 19 345 58 000 92100103 0 0 0 000 55 24 07 2.7 2.0 29.70 16 19 337 49 000 95100102 1 0 0 000 56 24 08 3.0 2.2 29.68 15 20 310 22 -001 94 99 95 1 0 0 002 57 24 09 2.5 1.9 29.66 17 24 319 31 -003 96100100 1 0 0 036 58 24 10 2.5 2.0 29.63 21 28 328 41 -002 97100100 1 0 0 083 59 24 11 3.0 2.4 29.58 22 32 330 42 -003 97100100 1 1 1 110 60 24 12 3.5 3.0 29.53 24 37 323 36 000 97100100 2 2 1 116 61 24 13 3.8 3.4 29.49 26 40 313 25 -005 97100100 3 2 2 096 62 24 14 4.1 3.7 29.44 27 43 304 17 -001 98100100 3 2 2 100 63 24 15 4.3 4.1 29.41 27 45 295 8 000 99100100 3 3 3 069 64 24 16 4.5 4.4 29.40 27 45 286 358 -008 100100100 4 3 3 011 65 24 17 4.5 4.4 29.39 26 44 281 354 -008 100100100 4 3 3 001 66 24 18 4.4 4.3 29.40 26 44 279 351 -002 100100100 4 3 2 001 67 24 19 4.3 4.2 29.40 26 42 277 350 -002 100100 95 3 3 2 001 68 24 20 4.1 3.9 29.41 27 42 270 343 -004 100100 71 3 2 1 002 69 24 21 3.2 3.1 29.43 28 40 262 335 -003 100100 56 2 1 0 002 70 24 22 2.6 2.0 29.44 27 37 259 332 -003 96100 45 1 0 0 002 71 24 23 2.4 1.0 29.46 26 35 259 332 -002 90100 60 0 0 -1 001 72 25 00 2.5 0.7 29.48 26 34 262 335 -002 87100 75 0 0 -1 000 73 25 01 2.5 0.7 29.50 25 33 264 336 -002 87 99 71 0 0 -1 000 74 25 02 2.5 0.6 29.51 24 32 267 340 -001 86 98 72 0 0 -1 000 75 25 03 2.5 0.6 29.51 23 31 271 344 000 86 98 77 0 0 -1 000 76 25 04 2.5 0.6 29.51 22 30 272 345 000 86 97104 1 0 -1 002 77 25 05 2.7 0.6 29.51 22 30 275 347 000 85 95104 1 0 -1 004 78 25 06 2.8 0.6 29.50 20 28 275 348 -001 84 89104 1 0 0 002 79 25 07 2.9 0.8 29.48 19 27 276 349 001 85 88104 1 0 0 004 80 25 08 2.8 0.8 29.48 18 26 277 349 000 85 88104 1 0 0 003 81 25 09 2.9 0.6 29.49 18 26 275 347 000 83 80104 1 0 0 005 82 25 10 2.9 0.1 29.48 17 24 267 339 -002 80 77104 1 0 0 003 83 25 11 2.9 0.2 29.46 15 21 264 337 -001 80 77104 1 0 0 001 84 25 12 2.9 0.4 29.47 15 22 263 336 000 81 79104 1 0 0 007 85 25 13 2.9 0.4 29.48 15 22 260 333 000 82 80104 1 0 0 003 86 25 14 2.9 0.5 29.48 16 23 250 323 000 82 84104 1 0 0 001 87 25 15 2.8 0.2 29.49 17 24 245 318 000 81 88 96 1 0 -1 000 88 25 16 2.8 0.2 29.50 18 24 249 322 000 81 89 98 1 0 -1 000 89 25 17 2.8 0.3 29.53 20 27 252 324 001 82 91 93 1 0 -1 000 90 25 18 2.8 0.2 29.55 21 28 247 319 001 81 90 88 1 0 -1 000 91 25 19 2.9 -0.1 29.57 20 28 252 325 000 79 81 78 1 0 -1 000 92 25 20 2.9 -0.3 29.59 21 29 255 327 001 77 83 87 1 0 -1 000 93 25 21 2.8 -0.0 29.60 21 29 252 325 000 79 86 82 1 0 -1 000 94 25 22 2.8 0.2 29.63 22 29 252 325 000 81 90 78 1 0 -1 000 95 25 23 2.8 0.3 29.65 21 28 254 327 000 82 89 74 1 0 -1 000 96 26 00 2.8 0.4 29.68 20 27 257 329 000 83 90 73 1 0 -1 000 97 26 01 2.8 0.4 29.69 19 26 262 334 000 82 78 82 1 0 0 000 98 26 02 2.9 0.5 29.71 18 25 268 340 000 82 74 81 1 0 0 000 99 26 03 2.9 0.7 29.72 19 27 273 345 000 84 84 80 1 0 0 000 100 26 04 2.9 0.8 29.74 19 24 282 355 000 84 78 86 1 0 0 000 101 26 05 2.8 0.4 29.75 21 30 284 357 000 82 89101 1 0 -1 000 102 26 06 2.9 0.9 29.76 20 28 280 353 000 85 90 71 1 0 0 001 103 26 07 3.0 1.1 29.77 18 25 277 350 000 86 93 78 1 0 0 000 104 26 08 3.0 1.1 29.78 18 26 278 350 000 86 91 75 1 0 0 000 105 26 09 3.0 0.8 29.80 17 24 273 346 -001 84 90 91 1 0 0 000 106 26 10 3.0 0.6 29.82 17 25 269 342 000 83 90 99 1 0 -1 000 107 26 11 3.1 0.5 29.83 16 24 266 339 000 81 83 83 1 0 0 000 108 26 12 3.0 0.6 29.85 16 22 270 343 001 82 88 88 1 0 0 000 109 26 13 2.9 0.6 29.86 16 22 277 350 002 83 83 88 1 0 0 000 110 26 14 2.9 0.6 29.87 15 22 278 350 001 83 80 81 1 0 0 000 111 26 15 2.9 1.1 29.87 13 20 280 352 000 87 85 87 1 0 0 000 112 26 16 2.9 1.1 29.87 13 19 283 356 000 86 80 89 1 0 0 000 113 26 17 2.9 0.9 29.88 13 18 282 355 000 85 67 81 1 0 0 000 114 26 18 2.9 1.0 29.89 12 17 285 358 000 86 62 79 1 0 0 000 115 26 19 2.8 1.3 29.90 11 15 289 2 001 88 63 79 1 0 0 000 116 26 20 2.8 1.5 29.90 10 14 293 5 001 91 66 81 1 0 0 000 117 26 21 2.8 1.8 29.90 9 13 300 12 001 92 62 86 1 0 0 000 118 26 22 2.8 1.8 29.90 9 12 310 23 000 93 58 87 1 1 0 000 119 26 23 2.8 1.8 29.90 11 16 318 31 000 92 81 90 1 0 0 000 120 27 00 2.8 1.6 29.89 11 15 320 33 000 91 68 92 1 0 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.