USAP Grounding Zone (ACT) site lat/lon = (-84.3380,-163.5425) cell lat/lon = (-84.3284,-163.5930) Forecast initialized at 2026-10-12/00 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 12 00 -28.3 -32.0 29.30 7 9 114 311 000 95 99 99 -29-28-26 000 1 12 01 -29.8 -32.7 29.30 5 9 124 320 -002 102 98 99 -28-28-26 000 2 12 02 -30.8 -33.1 29.31 5 10 132 328 000 112100 99 -28-28-26 000 3 12 03 -31.6 -33.1 29.31 6 11 135 331 000 124 97 98 -28-27-26 000 4 12 04 -32.3 -33.5 29.30 5 11 130 327 -001 128 94 98 -28-27-25 000 5 12 05 -33.2 -34.5 29.32 6 10 145 342 -002 129 95 97 -28-28-26 000 6 12 06 -33.7 -35.1 29.32 6 11 136 333 000 128 92 99 -28-28-26 000 7 12 07 -32.9 -34.7 29.33 5 11 150 347 000 121 89 99 -28-27-26 001 8 12 08 -32.9 -34.9 29.31 5 10 145 341 -001 117 85100 -28-26-26 001 9 12 09 -33.1 -34.8 29.31 6 11 133 330 000 122 96 98 -28-25-25 001 10 12 10 -32.5 -33.7 29.30 3 10 117 314 000 124103 99 -27-26-25 001 11 12 11 -34.3 -35.6 29.29 3 5 199 36 000 124102 96 -26-25-25 000 12 12 12 -35.5 -36.9 29.28 6 13 163 359 000 127 84 93 -27-25-26 000 13 12 13 -34.8 -35.9 29.28 8 16 121 318 000 135 93 93 -26-26-26 000 14 12 14 -35.8 -37.6 29.27 6 14 115 311 000 124 93 89 -27-26-26 000 15 12 15 -34.8 -36.6 29.27 5 14 117 313 000 124 96 88 -28-26-25 000 16 12 16 -35.5 -37.4 29.27 6 15 106 303 000 124 98 86 -27-26-25 000 17 12 17 -35.7 -37.6 29.25 5 14 104 300 000 124 93 93 -28-26-24 000 18 12 18 -35.2 -37.0 29.23 7 16 102 298 -001 124 86 97 -27-26-24 000 19 12 19 -35.4 -37.3 29.23 6 14 97 294 002 124 82100 -27-26-24 000 20 12 20 -35.6 -37.4 29.21 2 12 69 266 001 124 72100 -26-25-24 000 21 12 21 -36.8 -38.8 29.18 1 7 260 96 002 119 68 94 -26-24-24 000 22 12 22 -34.4 -36.1 29.16 4 4 204 41 003 124 66 88 -25-24-23 000 23 12 23 -32.9 -34.3 29.14 5 5 210 47 001 126 67 82 -25-24-23 000 24 13 00 -32.0 -33.2 29.12 4 4 194 30 003 125 63 77 -25-23-22 000 25 13 01 -31.7 -33.0 29.11 4 4 187 23 002 124 57 71 -25-22-22 000 26 13 02 -32.0 -33.3 29.09 6 6 185 21 000 127 57 65 -26-21-21 000 27 13 03 -32.8 -34.0 29.08 5 6 181 17 002 130 57 59 -26-21-20 000 28 13 04 -33.1 -34.0 29.04 6 7 192 28 000 137 57 54 -26-21-20 000 29 13 05 -34.1 -35.1 29.02 5 6 201 37 000 138 59 51 -25-21-19 000 30 13 06 -33.0 -33.6 28.99 3 6 182 18 000 137 56 46 -24-21-18 000 31 13 07 -33.6 -34.9 28.97 3 6 214 50 000 134 57 42 -23-21-18 000 32 13 08 -33.8 -35.6 28.95 3 8 211 47 000 124 54 40 -21-20-18 000 33 13 09 -32.8 -33.4 28.92 3 9 200 36 000 137 54 40 -20-20-18 000 34 13 10 -31.5 -32.1 28.91 4 11 210 46 000 135 54 42 -20-19-17 000 35 13 11 -30.2 -31.0 28.90 6 9 195 31 000 132 46 46 -20-18-16 000 36 13 12 -31.3 -32.0 28.87 5 12 198 35 -001 134 50 55 -19-17-16 000 37 13 13 -33.8 -34.8 28.85 6 14 201 37 000 138 45 61 -18-17-15 000 38 13 14 -31.4 -32.5 28.83 8 22 198 34 000 129 48 67 -17-16-14 000 39 13 15 -30.8 -32.2 28.81 7 18 196 32 -001 124 46 70 -17-14-13 000 40 13 16 -29.0 -30.6 28.80 5 7 201 38 000 119 49 63 -15-14-12 000 41 13 17 -26.9 -29.0 28.78 5 7 208 45 -003 109 55 74 -14-13-12 000 42 13 18 -25.4 -27.8 28.76 5 9 199 35 000 103 60 78 -15-12-11 000 43 13 19 -23.6 -25.9 28.75 7 11 139 336 -002 103 78 66 -17-13-12 000 44 13 20 -24.7 -27.8 28.75 11 22 115 311 -003 94104 60 -18-15-13 000 45 13 21 -23.4 -26.1 28.75 14 28 118 314 -001 99118 91 -20-17-13 001 46 13 22 -19.3 -20.6 28.74 17 32 116 312 -002 110116 55 -17-15-15 000 47 13 23 -17.0 -17.8 28.75 19 36 114 311 -006 113108 59 -13-13-12 000 48 14 00 -13.0 -14.1 28.76 19 37 122 319 -013 103 94 72 -11-11-11 000 49 14 01 -11.6 -13.6 28.76 21 37 129 325 -010 93 78 74 -9-10-10 000 50 14 02 -10.8 -13.2 28.76 23 38 128 325 -006 90 75 70 -9 -9 -9 000 51 14 03 -10.5 -13.0 28.76 23 40 128 325 -006 88 73 72 -9 -8 -9 000 52 14 04 -10.0 -12.9 28.76 25 43 124 320 -012 84 72 65 -8 -8 -9 000 53 14 05 -10.0 -13.0 28.77 24 43 120 317 -014 83 70 56 -8 -8 -8 000 54 14 06 -10.5 -13.4 28.78 23 41 128 325 -008 84 72 48 -9 -8 -8 000 55 14 07 -10.8 -13.8 28.79 22 41 132 329 -026 84 74 48 -9 -9 -8 000 56 14 08 -11.2 -14.3 28.80 26 42 129 326 -010 83 75 47 -10 -9 -9 000 57 14 09 -12.0 -15.3 28.81 26 42 125 321 005 82 74 44 -11 -9 -9 000 58 14 10 -12.6 -15.9 28.84 23 41 132 328 -022 82 76 43 -12-10 -9 000 59 14 11 -13.0 -16.4 28.85 23 41 131 327 -012 82 76 41 -12-10 -9 000 60 14 12 -13.3 -16.7 28.87 25 41 134 330 -008 82 74 46 -12-11-10 000 61 14 13 -13.3 -16.7 28.88 24 42 134 331 008 82 76 47 -12-11-10 000 62 14 14 -12.9 -16.6 28.89 29 45 126 323 008 80 74 45 -12-11 -9 000 63 14 15 -12.8 -16.5 28.90 28 44 130 327 -008 80 74 52 -12-12-11 000 64 14 16 -12.7 -16.4 28.91 27 45 131 327 -007 80 75 57 -12-12-11 000 65 14 17 -12.7 -16.5 28.91 30 46 131 327 005 79 75 46 -12-12-11 000 66 14 18 -12.6 -16.6 28.92 31 47 131 327 005 78 73 38 -12-12-11 000 67 14 19 -12.2 -16.2 28.93 32 47 130 327 -002 77 73 59 -12-12-12 000 68 14 20 -12.2 -16.1 28.94 30 45 133 329 -009 78 74 60 -12-12-12 000 69 14 21 -12.2 -16.2 28.96 31 44 132 329 -014 77 74 49 -12-12-12 000 70 14 22 -12.1 -16.0 28.97 29 42 133 330 -006 77 73 58 -12-12-12 000 71 14 23 -11.7 -15.7 28.98 29 43 134 330 -006 77 73 52 -12-12-12 000 72 15 00 -12.1 -16.1 28.98 28 42 133 329 -005 76 70 49 -12-12-12 000 73 15 01 -12.2 -16.1 28.99 27 41 133 329 -007 78 71 54 -12-13-13 000 74 15 02 -12.3 -16.2 28.99 27 41 134 330 -001 77 70 54 -12-13-13 000 75 15 03 -12.1 -16.3 28.99 28 42 133 329 -001 75 67 50 -12-13-13 000 76 15 04 -12.0 -16.2 29.00 26 40 128 325 005 74 63 61 -12-13-13 000 77 15 05 -12.7 -16.8 29.02 25 41 131 327 -001 76 68 61 -12-13-13 000 78 15 06 -12.5 -17.0 29.02 27 41 129 326 -005 73 68 56 -13-14-14 000 79 15 07 -13.1 -17.9 29.03 27 43 127 323 -001 71 62 54 -13-14-14 000 80 15 08 -13.7 -18.5 29.03 26 45 128 325 -005 71 58 47 -13-14-15 000 81 15 09 -13.5 -18.4 29.02 26 46 128 324 -001 70 58 48 -13-13-14 000 82 15 10 -13.5 -18.5 29.02 25 46 128 325 -001 70 58 43 -13-13-14 000 83 15 11 -13.1 -18.1 29.02 26 46 127 323 000 69 58 43 -12-13-14 000 84 15 12 -13.1 -18.2 29.01 26 45 127 324 000 69 58 39 -12-13-15 000 85 15 13 -13.2 -18.2 29.01 27 44 129 326 -004 69 62 39 -13-14-15 000 86 15 14 -13.4 -18.6 29.02 28 44 127 324 000 68 62 39 -14-15-15 000 87 15 15 -14.2 -19.4 29.02 27 43 124 320 -001 68 58 40 -14-15-15 000 88 15 16 -14.9 -20.2 29.02 28 45 124 320 -006 68 52 44 -15-15-15 000 89 15 17 -15.1 -20.1 29.02 27 43 127 324 000 71 55 55 -15-15-15 000 90 15 18 -14.8 -19.7 29.04 28 44 130 327 001 72 59 61 -15-15-16 000 91 15 19 -14.4 -19.0 29.05 28 44 130 326 002 73 66 64 -14-15-16 000 92 15 20 -13.8 -18.1 29.07 27 42 128 325 -004 76 74 81 -14-15-16 000 93 15 21 -13.6 -17.9 29.09 27 41 129 325 -003 75 70 81 -14-15-16 000 94 15 22 -13.7 -18.1 29.11 26 41 129 326 000 74 64 66 -14-14-15 000 95 15 23 -13.7 -18.4 29.13 25 39 128 324 000 73 59 48 -14-14-15 000 96 16 00 -14.0 -18.7 29.13 23 39 124 320 -001 72 52 39 -14-14-15 000 97 16 01 -14.1 -18.7 29.14 21 38 121 318 -007 73 49 35 -14-14-15 000 98 16 02 -14.2 -19.0 29.14 21 38 117 314 000 71 47 36 -13-14-15 000 99 16 03 -14.0 -18.7 29.14 21 37 126 322 -003 72 54 43 -13-14-15 000 100 16 04 -13.9 -18.4 29.13 21 38 126 323 -003 73 59 47 -13-14-15 000 101 16 05 -14.1 -18.5 29.13 20 37 127 324 -005 74 61 48 -13-14-15 000 102 16 06 -14.6 -18.9 29.14 20 37 128 324 -003 76 64 56 -14-15-16 000 103 16 07 -15.0 -19.3 29.14 21 39 124 320 -001 76 63 55 -14-15-16 000 104 16 08 -15.6 -19.8 29.14 21 38 126 322 -004 77 67 53 -15-15-17 000 105 16 09 -16.3 -20.4 29.15 21 36 123 319 -002 79 70 52 -15-16-17 000 106 16 10 -17.0 -20.9 29.15 20 37 118 315 -001 80 72 54 -16-16-18 000 107 16 11 -17.5 -21.4 29.15 19 35 119 315 000 81 78 55 -16-16-17 000 108 16 12 -17.5 -21.5 29.14 19 35 124 320 001 81 81 53 -16-16-17 000 109 16 13 -16.7 -20.2 29.14 21 33 127 324 001 84117 53 -15-16-17 000 110 16 14 -17.8 -21.7 29.13 19 35 126 322 000 81 68 51 -16-16-16 000 111 16 15 -17.6 -21.6 29.12 19 37 128 325 -003 80 66 54 -16-16-16 000 112 16 16 -16.9 -21.1 29.10 20 39 129 325 -003 78 65 54 -16-16-16 000 113 16 17 -16.3 -20.6 29.08 22 39 130 326 -003 77 64 52 -15-15-16 000 114 16 18 -15.8 -20.1 29.07 23 41 130 326 -002 77 64 51 -15-15-15 000 115 16 19 -15.3 -19.6 29.04 25 41 130 326 000 76 64 50 -15-15-15 000 116 16 20 -15.2 -19.4 29.02 24 41 130 327 000 77 60 50 -15-14-15 000 117 16 21 -14.7 -18.9 28.99 23 41 131 327 -001 77 59 52 -14-14-14 000 118 16 22 -13.7 -18.2 28.96 24 41 128 324 -002 74 58 54 -13-13-13 000 119 16 23 -12.4 -17.2 28.93 24 41 128 324 -003 70 58 60 -12-12-13 000 120 17 00 -10.9 -16.2 28.91 24 42 129 325 -003 66 54 56 -10-11-12 000 * 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.