USAP Grounding Zone (ACT) site lat/lon = (-84.3380,-163.5425) cell lat/lon = (-84.3284,-163.5930) Forecast initialized at 2026-01-10/00 UTC MPAS cell scale: 2.4 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 00 -8.3 -10.7 29.10 5 5 86 283 000 81 65 39 -8 -7 -7 000 1 10 01 -8.1 -10.3 29.11 4 6 90 287 001 88 69 44 -8 -8 -7 000 2 10 02 -8.1 -10.3 29.12 4 6 79 275 000 89 70 45 -8 -8 -7 000 3 10 03 -8.3 -10.5 29.12 4 5 83 279 000 89 69 48 -9 -8 -8 000 4 10 04 -8.6 -10.5 29.14 4 5 81 278 000 90 70 52 -9 -8 -8 000 5 10 05 -9.1 -10.8 29.14 3 5 78 275 000 93 70 58 -9 -9 -8 000 6 10 06 -9.7 -11.3 29.14 3 4 84 280 000 95 70 65 -9 -9 -8 000 7 10 07 -10.4 -11.7 29.14 4 4 86 282 000 100 69 70 -9 -9 -8 000 8 10 08 -11.2 -12.0 29.15 5 5 88 284 000 106 69 74 -9 -9 -8 000 9 10 09 -11.9 -12.3 29.16 5 6 92 288 000 111 70 74 -9 -9 -9 000 10 10 10 -13.0 -13.2 29.15 3 6 90 286 000 113 70 73 -10 -9 -9 000 11 10 11 -14.4 -14.5 29.17 3 5 95 292 000 115 70 68 -10-10 -9 000 12 10 12 -15.2 -15.4 29.17 2 5 100 296 000 116 70 63 -10-10 -9 000 13 10 13 -15.6 -15.8 29.18 2 4 124 320 000 116 71 61 -10-10-10 000 14 10 14 -15.5 -15.7 29.18 2 4 138 334 000 116 72 63 -10-10-10 000 15 10 15 -15.1 -15.2 29.18 2 5 127 323 000 115 74 64 -10-10-10 000 16 10 16 -14.5 -14.6 29.19 2 6 110 306 000 115 73 65 -10-10-10 000 17 10 17 -13.7 -14.2 29.19 3 5 99 295 000 110 72 66 -11-10-10 000 18 10 18 -13.2 -14.1 29.19 4 4 91 287 000 106 71 71 -10-10-10 000 19 10 19 -12.6 -13.9 29.19 4 4 90 286 -001 102 71 76 -10-10-10 000 20 10 20 -12.1 -13.6 29.19 3 5 85 281 000 100 71 80 -10-10-10 000 21 10 21 -11.6 -13.1 29.19 3 4 79 275 000 98 71 80 -11-10-10 000 22 10 22 -11.2 -12.8 29.19 3 3 69 266 000 97 73 82 -11-11-10 000 23 10 23 -10.9 -12.4 29.18 2 3 72 268 000 98 74 85 -11-11-11 000 24 11 00 -10.5 -12.1 29.17 2 2 74 270 000 97 74 84 -11-11-11 000 25 11 01 -10.3 -12.0 29.17 2 3 77 274 000 96 75 81 -11-11-11 000 26 11 02 -10.2 -11.8 29.18 3 3 81 277 000 96 76 80 -11-11-11 000 27 11 03 -10.2 -11.8 29.16 3 3 83 280 000 96 77 77 -11-11-11 000 28 11 04 -10.3 -11.9 29.15 3 4 80 276 000 96 79 76 -11-11-11 000 29 11 05 -10.6 -12.2 29.15 3 4 79 276 000 97 81 77 -11-11-11 000 30 11 06 -11.2 -12.5 29.14 3 4 77 274 000 100 83 79 -11-11-11 000 31 11 07 -11.8 -12.9 29.13 3 4 77 274 000 104 83 79 -11-11-11 000 32 11 08 -12.6 -13.3 29.13 4 4 71 267 000 110 84 81 -11-12-12 000 33 11 09 -13.5 -13.8 29.12 4 5 48 244 000 114 85 83 -11-12-12 000 34 11 10 -14.4 -14.6 29.11 4 5 65 261 000 115 86 84 -12-12-12 000 35 11 11 -14.3 -14.5 29.11 4 5 79 275 000 115 84 83 -12-12-12 000 36 11 12 -14.0 -14.1 29.11 5 5 87 283 000 114 84 88 -13-12-12 000 37 11 13 -13.6 -13.8 29.10 5 7 92 289 000 114 84 92 -15-12-12 000 38 11 14 -13.6 -13.7 29.09 5 6 93 290 000 114 84 91 -15-12-12 000 39 11 15 -13.3 -13.5 29.08 5 8 101 297 000 114 92 88 -14-12-12 000 40 11 16 -13.4 -13.5 29.07 6 6 101 298 000 114 99 87 -15-12-12 000 41 11 17 -13.3 -13.4 29.07 6 7 107 304 000 113103 93 -14-13-12 000 42 11 18 -13.2 -13.3 29.06 6 6 111 308 000 113115 91 -14-14-12 000 43 11 19 -13.2 -13.4 29.05 6 6 112 308 000 114115 91 -14-15-12 000 44 11 20 -13.0 -13.1 29.04 6 7 107 303 000 113116 93 -14-16-12 000 45 11 21 -12.8 -12.9 29.03 6 7 104 301 000 113116 90 -14-15-12 000 46 11 22 -12.1 -12.3 29.03 6 8 102 298 000 111115 86 -13-15-12 000 47 11 23 -11.5 -12.1 29.02 6 7 98 295 000 107115 84 -13-14-14 000 48 12 00 -10.9 -12.3 29.02 6 7 100 297 000 99114 86 -12-14-15 000 49 12 01 -10.0 -11.6 29.01 6 7 97 294 000 96113 86 -11-13-14 000 50 12 02 -9.6 -11.8 29.00 4 7 121 317 000 90111 89 -11-12-14 000 51 12 03 -9.3 -11.3 29.00 5 6 111 307 001 92112 85 -11-12-13 000 52 12 04 -9.2 -12.0 29.00 5 6 123 319 000 86106 81 -10-12-13 000 53 12 05 -9.3 -11.6 29.00 6 7 133 329 000 89109 61 -10-12-13 000 54 12 06 -9.3 -11.2 28.99 7 7 129 325 000 92112 50 -10-12-13 000 55 12 07 -10.0 -12.4 28.99 8 8 147 343 001 89106 51 -11-12-14 000 56 12 08 -11.2 -13.1 28.99 5 6 137 333 000 93109 62 -11-13-14 000 57 12 09 -10.3 -12.0 29.00 5 8 158 354 000 95113 52 -11-13-14 000 58 12 10 -12.6 -13.2 29.00 5 8 162 358 000 110106 52 -12-13-12 000 59 12 11 -13.3 -13.9 29.00 5 8 167 4 000 113 90 56 -12-12-12 000 60 12 12 -14.4 -14.6 28.99 3 7 197 33 001 115 78 60 -11-11-12 000 61 12 13 -16.0 -16.1 28.99 2 10 217 54 001 116 77 68 -11-10-12 000 62 12 14 -16.1 -16.3 28.99 3 9 213 49 000 117 74 70 -9-10-11 000 63 12 15 -15.4 -15.6 29.00 4 8 196 33 000 116 69 70 -9-10-11 000 64 12 16 -14.6 -15.3 29.00 5 10 187 23 000 110 60 79 -9-10-11 000 65 12 17 -13.5 -15.2 29.00 4 11 178 15 001 98 55 76 -9 -9-10 000 66 12 18 -12.9 -14.9 28.99 4 13 166 2 000 95 51 57 -9 -9-10 000 67 12 19 -11.9 -14.3 28.99 4 11 170 6 001 91 47 56 -8 -8-10 000 68 12 20 -10.7 -13.6 28.99 8 21 155 351 001 84 45 69 -8 -9 -9 000 69 12 21 -9.6 -13.0 28.99 8 19 141 338 001 78 45 66 -7 -9 -9 000 70 12 22 -8.7 -12.0 28.98 10 21 139 335 000 79 43 75 -8 -7 -8 000 71 12 23 -8.4 -12.0 28.99 11 21 141 337 001 77 44 56 -8 -8 -9 000 72 13 00 -7.8 -11.4 28.98 9 22 134 330 001 76 45 67 -7 -7 -8 000 73 13 01 -7.7 -10.5 28.98 7 21 144 340 000 82 53 60 -6 -7 -8 000 74 13 02 -7.4 -10.4 28.97 9 18 139 336 000 80 52 69 -6 -7 -8 000 75 13 03 -7.4 -10.2 28.96 8 20 135 331 000 82 66 60 -7 -8 -8 000 76 13 04 -7.6 -10.0 28.96 10 21 125 322 000 86 64 47 -7 -8 -8 000 77 13 05 -8.2 -10.6 28.96 11 21 123 319 -001 87 56 47 -8 -7 -8 000 78 13 06 -8.9 -11.3 28.96 10 21 116 312 000 88 58 41 -7 -7 -8 000 79 13 07 -9.5 -11.9 28.96 9 20 113 309 000 87 56 36 -7 -7 -8 000 80 13 08 -10.0 -11.9 28.96 7 19 131 328 000 92 62 32 -6 -7 -7 000 81 13 09 -9.8 -11.4 28.96 9 22 134 330 000 95 68 32 -6 -7 -8 000 82 13 10 -9.4 -11.9 28.96 11 24 127 323 000 86 69 30 -6 -7 -8 000 83 13 11 -9.5 -12.2 28.96 12 24 129 325 000 85 70 26 -7 -7 -7 000 84 13 12 -9.4 -12.2 28.96 13 27 130 326 -001 84 68 26 -7 -7 -7 000 85 13 13 -9.3 -12.2 28.96 14 27 129 325 000 83 68 28 -7 -7 -7 000 86 13 14 -9.1 -12.2 28.96 15 29 129 326 000 82 66 27 -8 -7 -6 000 87 13 15 -8.9 -11.9 28.96 15 29 126 323 000 81 66 27 -8 -7 -6 000 88 13 16 -8.4 -11.5 28.96 16 28 127 323 000 81 64 26 -8 -7 -6 000 89 13 17 -7.9 -11.0 28.96 18 28 133 329 000 81 46 37 -7 -5 -5 000 90 13 18 -7.1 -9.9 28.98 16 26 122 319 000 82 67 93 -8 -6 -6 000 91 13 19 -6.4 -9.1 28.98 17 24 131 327 -001 82 85101 -7 -5 -5 000 92 13 20 -5.9 -8.0 28.98 16 24 130 326 -004 87 96 94 -7 -5 -6 002 93 13 21 -5.3 -7.0 28.99 17 25 131 328 000 90 97107 -6 -5 -5 007 94 13 22 -4.6 -6.1 29.00 17 23 130 326 000 92101106 -6 -5 -5 003 95 13 23 -3.9 -5.1 29.00 16 22 127 323 000 93100 99 -5 -5 -5 004 96 14 00 -3.4 -4.5 29.00 16 22 130 327 -001 93 99 93 -4 -4 -4 003 97 14 01 -3.0 -4.1 28.99 17 23 132 329 -001 93 98 99 -4 -4 -4 005 98 14 02 -2.8 -3.9 28.99 16 22 133 330 -001 93101104 -4 -4 -4 010 99 14 03 -2.6 -3.8 29.00 16 22 132 329 000 93101106 -4 -4 -4 010 100 14 04 -2.6 -3.7 29.00 16 22 132 328 000 93101104 -3 -4 -4 010 101 14 05 -2.5 -3.7 29.00 16 23 132 328 000 91 97107 -3 -4 -4 007 102 14 06 -2.7 -4.4 29.00 16 23 133 329 000 87 88106 -3 -3 -3 005 103 14 07 -3.1 -5.3 28.99 16 25 136 332 000 83 79 97 -3 -2 -3 002 104 14 08 -3.3 -6.2 28.99 15 26 139 335 -001 78 74 92 -2 -2 -3 001 105 14 09 -3.8 -7.0 28.99 16 26 139 336 000 77 66 86 -2 -2 -2 000 106 14 10 -4.3 -7.3 29.00 14 26 129 325 000 78 63 84 -3 -2 -3 000 107 14 11 -5.4 -8.3 29.00 11 26 128 324 -001 80 71 75 -4 -3 -3 000 108 14 12 -5.9 -9.0 29.00 13 29 130 326 000 79 67 72 -3 -3 -3 000 109 14 13 -6.4 -9.5 29.00 14 25 131 328 000 79 61 70 -4 -3 -3 000 110 14 14 -6.2 -7.8 28.99 14 25 129 326 001 92 85 70 -5 -3 -3 000 111 14 15 -4.6 -5.3 28.98 17 26 128 325 -002 99 94 86 -5 -3 -4 000 112 14 16 -4.3 -5.7 28.98 14 21 131 327 000 92102 99 -5 -4 -3 005 113 14 17 -3.3 -4.4 28.98 16 23 131 327 000 93101100 -4 -4 -4 012 114 14 18 -3.3 -4.4 28.98 17 23 132 328 -001 93 98106 -4 -3 -4 008 115 14 19 -2.7 -3.9 28.99 17 22 131 327 000 92 98107 -4 -3 -4 008 116 14 20 -2.4 -3.7 28.99 16 22 131 328 -005 91 94107 -3 -3 -3 008 117 14 21 -2.1 -3.0 28.99 15 21 129 325 -045 94 98107 -3 -3 -4 025 118 14 22 -1.6 -2.7 28.99 15 20 130 327 005 92 96107 -3 -3 -3 045 119 14 23 -1.4 -2.4 28.99 14 19 131 327 -001 92 96107 -3 -3 -3 002 120 15 00 -1.3 -2.4 28.99 14 19 132 329 000 91 96100 -2 -3 -4 000 * 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.