Heard Island site lat/lon = (-53.0000,72.6000) cell lat/lon = (-53.0015,72.5908) Forecast initialized at 2026-01-31/12 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 31 12 3.6 0.6 29.82 28 34 243 316 000 77 84 85 2 0 0 000 1 31 13 3.7 0.7 29.86 26 36 247 319 -001 79 86 89 2 0 0 000 2 31 14 3.6 0.9 29.90 26 36 248 321 001 80 88 89 2 0 0 000 3 31 15 3.6 0.9 29.92 26 36 249 322 001 80 88 91 2 0 0 000 4 31 16 3.7 0.9 29.96 26 35 251 324 001 80 88100 2 0 0 000 5 31 17 3.7 0.3 29.98 26 34 250 322 001 76 83104 2 0 0 000 6 31 18 3.5 0.2 30.01 25 34 250 323 000 77 83105 2 0 -1 000 7 31 19 3.5 0.2 30.02 24 33 253 326 000 76 82105 2 0 0 000 8 31 20 3.7 0.5 30.03 24 32 260 332 000 77 83104 2 0 0 000 9 31 21 3.6 1.1 30.03 24 33 265 337 000 82 89 98 2 0 0 000 10 31 22 3.6 1.1 30.05 24 32 264 337 000 82 90 71 2 0 0 000 11 31 23 3.6 1.0 30.07 24 33 266 338 000 82 90 58 2 0 0 000 12 01 00 3.6 1.3 30.08 24 33 267 340 000 83 91 47 2 0 0 000 13 01 01 3.7 1.4 30.08 24 34 269 342 000 83 92 49 2 0 0 000 14 01 02 3.7 1.5 30.10 23 33 271 343 000 84 92 38 2 1 0 000 15 01 03 3.7 1.6 30.10 23 32 270 343 000 85 93 36 2 1 0 000 16 01 04 3.8 1.8 30.10 21 31 274 346 000 85 93 32 2 1 0 000 17 01 05 3.8 2.0 30.10 21 31 277 349 000 87 97 32 2 1 0 000 18 01 06 3.9 2.0 30.11 21 31 281 353 000 86 94 32 2 1 0 000 19 01 07 4.0 2.3 30.13 22 33 285 358 -001 88 97 36 2 1 0 000 20 01 08 4.1 2.3 30.14 23 34 283 356 -001 87 97 40 2 1 0 000 21 01 09 4.0 2.4 30.12 24 35 283 355 -001 88 99 45 2 1 0 000 22 01 10 4.0 2.4 30.11 25 37 282 354 -001 88 99 58 2 1 0 000 23 01 11 4.1 2.4 30.09 25 37 281 354 -001 88 99 68 2 1 0 000 24 01 12 4.2 2.4 30.09 24 37 281 354 000 87 95 72 3 1 0 000 25 01 13 4.2 2.5 30.08 24 36 280 352 -001 88 97 79 3 1 0 000 26 01 14 4.1 2.5 30.09 25 36 279 352 -002 88 99 89 2 1 0 000 27 01 15 4.1 2.6 30.09 25 36 283 356 -002 89 99 98 3 1 1 000 28 01 16 4.1 2.7 30.09 25 37 286 358 -001 90 99100 2 1 1 000 29 01 17 4.0 2.8 30.09 25 36 286 358 -001 91100100 2 1 1 000 30 01 18 4.0 2.8 30.08 25 37 286 359 000 92100100 2 1 1 000 31 01 19 3.9 2.9 30.07 26 37 286 359 -001 93100100 2 1 1 000 32 01 20 3.9 2.9 30.07 26 37 285 358 002 93100100 2 1 1 000 33 01 21 3.9 3.0 30.06 24 36 286 359 000 94100100 2 1 1 007 34 01 22 4.0 3.1 30.06 23 35 286 359 000 94100100 2 2 1 009 35 01 23 4.0 3.2 30.05 23 35 284 357 004 94100100 2 2 1 014 36 02 00 4.1 3.3 30.05 23 35 285 358 002 94100100 3 2 1 004 37 02 01 4.0 3.3 30.04 23 35 286 359 -002 95100100 3 2 1 044 38 02 02 4.1 3.3 30.04 23 34 287 359 000 94100100 3 2 1 028 39 02 03 4.1 3.4 30.04 23 34 287 359 001 95100100 3 2 1 001 40 02 04 4.1 3.4 30.03 22 34 287 359 000 95100100 3 2 1 006 41 02 05 4.1 3.5 30.03 22 34 285 358 000 95100100 3 2 1 004 42 02 06 4.1 3.5 30.03 21 32 286 359 000 95100100 3 2 1 000 43 02 07 4.1 3.6 30.01 21 32 284 357 000 97100100 3 2 1 000 44 02 08 4.0 3.9 30.00 20 30 283 355 000 100100100 3 2 2 000 45 02 09 4.0 3.9 29.99 18 29 283 355 000 100100100 3 2 2 000 46 02 10 4.0 3.9 29.98 17 27 284 357 -001 100100100 3 2 2 000 47 02 11 4.1 3.9 29.98 16 26 283 355 000 100100 99 3 3 2 000 48 02 12 4.0 3.9 29.98 14 22 285 358 002 100100 96 3 3 2 000 49 02 13 4.0 3.9 29.98 14 23 284 357 -002 100100100 3 3 2 000 50 02 14 4.0 3.8 29.97 13 22 286 358 000 100100100 3 3 2 000 51 02 15 3.9 3.8 29.97 12 19 288 0 -002 100100100 3 2 2 000 52 02 16 3.9 3.7 29.96 12 18 294 7 000 100100 65 3 2 2 000 53 02 17 3.8 3.7 29.94 11 17 298 11 001 100100 73 3 2 2 000 54 02 18 3.8 3.7 29.91 12 20 303 15 000 100100 99 3 2 2 000 55 02 19 3.8 3.7 29.88 12 20 307 20 -001 100100100 3 3 2 001 56 02 20 3.9 3.7 29.86 14 22 310 23 -003 100100100 3 2 2 044 57 02 21 3.9 3.7 29.82 14 22 312 24 -004 99100100 3 2 2 077 58 02 22 3.9 3.7 29.80 17 26 314 26 -003 99100100 3 2 2 095 59 02 23 3.8 3.7 29.77 18 27 308 21 -002 100100100 3 2 2 045 60 03 00 3.7 3.6 29.74 17 26 305 17 -010 100100 99 2 2 2 057 61 03 01 3.7 3.5 29.71 18 27 307 19 -006 100100 96 2 3 3 008 62 03 02 3.8 3.6 29.68 17 26 309 22 -002 99100 93 3 3 3 031 63 03 03 3.9 3.6 29.67 18 27 308 20 -009 98100100 3 3 3 071 64 03 04 3.9 3.6 29.65 17 27 310 22 -003 98100100 3 3 3 104 65 03 05 3.9 3.7 29.62 17 26 306 18 000 99100100 3 3 2 033 66 03 06 3.9 3.8 29.60 16 25 295 8 -001 100100100 3 2 1 005 67 03 07 3.9 3.7 29.58 15 22 285 358 000 100100100 3 2 1 014 68 03 08 3.8 3.7 29.57 13 20 266 339 000 100100100 3 2 1 004 69 03 09 3.8 3.6 29.56 12 18 238 311 000 100 97 94 2 2 2 000 70 03 10 2.7 2.5 29.58 16 19 206 278 002 99 90 90 1 1 0 000 71 03 11 3.1 1.9 29.59 14 21 203 276 005 91 95 85 1 0 0 000 72 03 12 3.5 1.8 29.60 14 20 211 284 005 88 91 77 2 0 0 000 73 03 13 3.6 2.0 29.61 12 19 225 298 004 89 91 89 2 1 0 000 74 03 14 3.5 2.0 29.62 13 19 229 302 003 89 90103 2 0 0 000 75 03 15 3.5 1.9 29.64 13 18 233 305 003 88 80102 2 1 0 000 76 03 16 3.4 1.8 29.66 13 18 235 308 004 88 98 99 1 0 0 000 77 03 17 3.4 2.1 29.66 13 19 236 309 002 90 96101 2 0 0 000 78 03 18 3.5 1.9 29.67 12 18 238 311 001 88 90 90 2 0 0 000 79 03 19 3.5 1.7 29.67 10 18 255 327 002 86 86103 2 1 0 000 80 03 20 3.5 2.2 29.68 12 17 268 340 001 91 94103 2 0 0 000 81 03 21 3.3 1.8 29.68 13 17 264 336 000 89 97100 1 0 0 000 82 03 22 3.4 1.4 29.68 13 16 258 330 000 86 91103 1 0 0 000 83 03 23 3.4 1.2 29.68 12 15 253 326 000 84 84105 1 0 0 000 84 04 00 3.3 0.8 29.69 9 13 247 319 000 82 78105 1 0 -1 000 85 04 01 3.3 0.4 29.69 5 11 255 327 000 79 77104 1 0 0 001 86 04 02 3.3 -0.0 29.70 6 9 292 4 001 77 77104 1 0 0 003 87 04 03 3.2 0.1 29.69 4 6 328 40 000 78 79103 1 0 0 003 88 04 04 3.3 1.0 29.69 5 6 334 47 -001 84 85103 1 0 0 005 89 04 05 3.3 1.7 29.68 5 9 311 24 000 89 89103 1 0 0 004 90 04 06 3.3 1.7 29.68 8 13 295 8 -003 88 85104 1 0 0 002 91 04 07 3.3 1.2 29.67 9 13 304 16 000 85 87103 1 0 0 000 92 04 08 3.2 1.1 29.66 9 13 312 24 -002 84 94102 1 0 0 001 93 04 09 3.1 1.8 29.65 9 13 325 38 000 91 99 99 1 0 0 009 94 04 10 2.9 2.0 29.64 12 15 335 47 002 94 98101 1 0 0 012 95 04 11 2.7 1.8 29.63 13 17 336 49 000 94 99101 1 0 0 015 96 04 12 2.7 1.8 29.62 10 14 344 57 000 94 98 98 1 0 0 006 97 04 13 2.7 1.9 29.60 9 11 2 74 000 94 99 96 1 0 0 005 98 04 14 2.6 1.9 29.59 9 11 13 86 000 95100100 1 0 0 007 99 04 15 2.6 1.9 29.58 10 12 25 98 000 95 99101 1 0 0 003 100 04 16 2.6 1.8 29.57 10 12 42 114 000 94 98101 1 0 0 000 101 04 17 2.7 1.8 29.55 9 12 55 128 000 94100101 1 0 0 000 102 04 18 2.8 2.0 29.54 7 9 72 145 000 95100101 1 0 0 000 103 04 19 2.8 2.2 29.52 5 5 110 183 000 96100 99 1 0 0 000 104 04 20 2.8 2.2 29.52 4 4 152 225 000 96100 98 1 0 0 000 105 04 21 2.8 2.3 29.52 5 5 195 267 000 97100 95 1 0 0 000 106 04 22 2.9 2.2 29.53 6 7 226 298 000 95 98 89 1 0 0 000 107 04 23 3.0 2.1 29.54 7 9 257 329 000 94100 78 1 0 0 000 108 05 00 3.2 2.2 29.56 11 15 272 345 002 93 99 83 1 0 0 000 109 05 01 2.8 1.6 29.57 15 18 280 353 000 91100 84 1 0 -1 001 110 05 02 2.8 1.5 29.56 15 20 292 5 000 91100 83 1 0 -1 003 111 05 03 3.3 1.7 29.55 16 24 307 19 000 89 99102 1 0 0 003 112 05 04 3.7 2.2 29.54 17 27 319 32 000 89 93102 2 1 0 001 113 05 05 4.0 2.5 29.54 21 31 314 27 -001 90 99102 2 1 0 004 114 05 06 4.0 2.5 29.54 22 33 305 18 000 89 96102 2 1 0 001 115 05 07 4.0 2.7 29.55 23 35 301 14 -001 91 99101 2 1 0 005 116 05 08 4.0 2.9 29.56 23 35 297 10 000 92100101 2 1 1 003 117 05 09 4.0 3.4 29.58 23 34 289 1 000 96100101 3 2 1 000 118 05 10 4.1 2.0 29.60 20 30 267 340 000 84 80 98 2 1 0 000 119 05 11 4.0 1.0 29.63 18 28 275 348 001 78 76 77 2 1 0 000 120 05 12 3.9 0.8 29.65 19 28 272 345 002 78 75 74 2 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.