USAP Grounding Zone (ACT) site lat/lon = (-84.3380,-163.5425) cell lat/lon = (-84.3284,-163.5930) Forecast initialized at 2026-10-15/12 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 15 12 -13.5 -17.7 29.08 15 18 128 324 000 73 60 57 -12-11-12 000 1 15 13 -15.8 -18.0 29.09 11 27 132 329 001 94 62 59 -11-11-12 000 2 15 14 -15.8 -17.4 29.10 13 32 132 329 000 102 62 63 -11-12-12 000 3 15 15 -14.2 -17.1 29.10 18 36 132 328 -002 87 68 63 -11-11-13 000 4 15 16 -14.8 -18.3 29.10 17 32 130 327 000 82 61 57 -11-12-13 000 5 15 17 -15.4 -19.0 29.11 14 31 136 332 000 82 53 51 -11-12-13 000 6 15 18 -15.4 -18.5 29.12 15 29 128 324 -002 86 52 43 -11-12-13 000 7 15 19 -15.0 -18.9 29.12 15 29 123 319 000 79 53 39 -12-13-13 000 8 15 20 -15.3 -18.0 29.06 10 25 115 312 -001 90 48 55 -11-12-11 000 9 15 21 -15.3 -18.6 29.09 11 26 120 317 001 83 47 37 -12-12-12 000 10 15 22 -15.5 -18.7 29.09 10 24 123 319 000 86 49 32 -12-13-12 000 11 15 23 -15.7 -18.9 29.08 12 26 125 321 006 85 45 30 -13-13-13 000 12 16 00 -15.6 -19.3 29.07 13 28 125 321 003 80 44 30 -12-13-13 000 13 16 01 -15.7 -19.3 29.06 11 27 134 330 005 81 46 33 -12-12-13 000 14 16 02 -15.7 -19.3 29.05 10 26 137 333 003 81 46 33 -11-12-14 000 15 16 03 -15.8 -19.3 29.06 11 28 142 339 005 82 48 39 -12-12-13 000 16 16 04 -15.4 -19.0 29.04 13 30 142 338 000 81 48 41 -12-13-14 000 17 16 05 -16.1 -19.5 29.02 12 30 149 345 001 83 50 46 -13-13-14 000 18 16 06 -16.2 -20.0 29.01 14 32 143 339 003 81 54 51 -13-14-15 000 19 16 07 -16.5 -20.3 28.99 15 34 142 338 004 81 57 54 -14-14-16 000 20 16 08 -16.7 -20.7 28.98 17 34 137 333 003 79 58 59 -14-15-16 000 21 16 09 -16.9 -20.9 28.98 17 34 138 335 003 79 60 61 -15-15-16 000 22 16 10 -17.2 -21.3 28.97 18 34 137 333 002 79 60 60 -15-16-17 000 23 16 11 -17.8 -21.8 28.95 18 34 138 334 003 80 61 59 -16-16-17 000 24 16 12 -18.1 -22.1 28.94 18 35 138 334 003 80 63 60 -17-17-18 000 25 16 13 -18.2 -22.3 28.93 19 36 133 329 003 79 63 57 -17-17-18 000 26 16 14 -18.3 -22.5 28.93 19 35 130 327 003 79 65 56 -17-17-18 000 27 16 15 -18.7 -22.7 28.93 19 34 136 333 -001 81 67 57 -18-18-19 000 28 16 16 -18.9 -23.0 28.92 19 34 132 328 -006 81 68 54 -18-18-19 000 29 16 17 -19.1 -23.1 28.90 19 34 134 330 -001 81 67 55 -18-18-19 000 30 16 18 -18.8 -22.9 28.87 19 35 132 328 -001 81 64 55 -18-18-18 000 31 16 19 -18.1 -22.1 28.86 20 36 133 329 -002 80 64 47 -17-17-18 000 32 16 20 -17.3 -21.1 28.84 20 36 132 329 001 81 64 47 -17-16-17 000 33 16 21 -16.4 -20.4 28.83 21 37 133 329 -001 80 65 46 -16-16-17 000 34 16 22 -15.7 -19.6 28.82 21 37 132 328 000 80 66 52 -15-15-17 000 35 16 23 -14.6 -18.5 28.81 22 38 131 328 001 79 69 53 -14-15-16 000 36 17 00 -14.4 -18.2 28.79 22 38 130 326 000 80 69 50 -14-15-16 000 37 17 01 -14.1 -17.7 28.78 20 38 131 327 -001 81 66 50 -13-14-15 000 38 17 02 -13.4 -17.1 28.75 21 38 130 326 -001 80 65 53 -12-13-14 000 39 17 03 -12.6 -16.3 28.74 23 39 127 323 -002 79 65 50 -12-13-14 000 40 17 04 -12.8 -16.6 28.72 23 39 125 321 -001 78 65 54 -12-12-13 000 41 17 05 -13.0 -16.7 28.72 22 39 126 322 000 80 67 57 -12-12-13 000 42 17 06 -13.2 -16.7 28.72 22 39 128 324 000 81 69 56 -12-12-13 000 43 17 07 -13.1 -16.6 28.72 23 40 127 323 000 81 69 56 -12-12-12 000 44 17 08 -13.1 -16.5 28.72 23 40 129 325 -002 81 70 55 -12-12-12 000 45 17 09 -13.1 -16.5 28.70 25 40 130 326 -008 82 68 49 -12-12-12 000 46 17 10 -12.9 -16.7 28.71 24 40 130 326 000 79 63 49 -11-11-11 000 47 17 11 -13.1 -17.0 28.71 24 40 131 328 002 78 54 51 -11-10-11 000 48 17 12 -12.7 -16.7 28.71 24 41 132 328 003 77 52 50 -11-10-10 000 49 17 13 -11.6 -15.6 28.70 24 43 129 326 002 76 55 50 -10-10-10 000 50 17 14 -11.2 -15.4 28.69 26 44 129 326 003 74 52 49 -10-10-10 000 51 17 15 -11.7 -16.2 28.68 27 46 130 326 006 73 55 51 -11-11-10 000 52 17 16 -11.3 -16.0 28.68 29 47 129 325 003 71 61 53 -11-12-11 000 53 17 17 -11.6 -16.3 28.67 32 49 128 324 -002 71 63 55 -11-12-12 000 54 17 18 -12.1 -16.7 28.67 32 49 131 328 -001 72 64 55 -12-13-12 000 55 17 19 -12.2 -16.8 28.66 33 51 131 327 000 72 66 55 -12-13-12 000 56 17 20 -12.1 -16.7 28.66 33 52 129 326 003 72 65 55 -12-13-12 000 57 17 21 -11.9 -16.7 28.68 34 53 129 326 -002 70 63 56 -12-13-12 000 58 17 22 -11.5 -16.4 28.69 35 53 132 328 000 69 65 54 -11-13-12 000 59 17 23 -11.0 -15.8 28.70 36 55 133 329 -002 70 68 59 -11-12-13 000 60 18 00 -10.6 -15.2 28.71 37 56 134 330 000 71 69 62 -11-12-11 000 61 18 01 -9.9 -14.2 28.72 38 55 134 331 005 73 72 63 -10-11-11 000 62 18 02 -9.5 -14.0 28.73 38 54 137 333 004 71 66 64 -10-10-10 000 63 18 03 -9.6 -14.1 28.74 36 53 137 333 016 71 69 63 -10-11-11 000 64 18 04 -10.1 -14.6 28.75 36 54 137 333 009 72 69 62 -10-11-10 000 65 18 05 -10.0 -14.3 28.76 36 53 136 332 004 73 69 65 -10-11-10 000 66 18 06 -10.5 -14.8 28.77 36 53 135 331 -003 73 68 62 -10-11-10 000 67 18 07 -11.0 -15.3 28.79 35 52 134 331 -002 74 67 57 -11-11 -9 000 68 18 08 -11.4 -15.8 28.82 35 52 134 331 -006 73 67 57 -11-11-10 000 69 18 09 -11.6 -16.0 28.84 34 51 133 330 -015 73 66 55 -12-11-10 000 70 18 10 -12.1 -16.6 28.86 33 51 133 329 -006 73 66 49 -12-12-11 000 71 18 11 -12.2 -16.7 28.86 33 51 131 327 -008 73 64 44 -12-12-11 000 72 18 12 -12.0 -16.5 28.87 34 52 131 327 -005 73 65 58 -12-12-12 000 73 18 13 -11.8 -16.3 28.87 33 50 130 326 -001 73 67 53 -12-12-12 000 74 18 14 -11.9 -16.3 28.87 33 49 130 326 -010 73 66 44 -12-12-12 000 75 18 15 -12.3 -16.7 28.88 32 47 132 328 -012 73 64 50 -12-12-12 000 76 18 16 -12.2 -16.6 28.87 32 47 131 328 -002 73 60 50 -12-12-11 000 77 18 17 -11.7 -16.1 28.87 31 47 134 331 -010 73 62 50 -11-12-11 000 78 18 18 -11.1 -15.6 28.85 32 47 132 328 -003 72 57 51 -11-11-10 000 79 18 19 -10.7 -15.2 28.84 32 48 132 329 000 72 57 53 -10-10-10 000 80 18 20 -10.3 -14.7 28.83 31 48 130 327 -004 72 58 53 -10-10 -9 000 81 18 21 -9.9 -14.3 28.82 33 49 130 326 -001 72 58 54 -10-10 -8 000 82 18 22 -9.4 -13.9 28.81 33 49 130 326 -004 71 60 53 -9-10 -8 000 83 18 23 -9.1 -13.6 28.80 31 48 129 325 003 71 64 52 -9-10 -9 000 84 19 00 -9.4 -13.8 28.79 31 49 128 325 -007 72 66 54 -10-10 -9 000 85 19 01 -9.1 -13.6 28.78 32 51 125 321 -014 70 65 56 -9-10 -9 000 86 19 02 -9.0 -13.7 28.75 34 54 122 319 -006 69 60 61 -9-10 -9 000 87 19 03 -9.0 -13.9 28.74 35 56 123 319 -018 68 62 58 -9-10 -9 000 88 19 04 -9.3 -14.2 28.73 34 55 128 324 -011 69 65 57 -9-10-11 000 89 19 05 -10.1 -14.9 28.73 33 54 129 326 -014 69 66 57 -10-11-12 000 90 19 06 -10.7 -15.6 28.73 33 54 131 327 -006 69 66 58 -11-12-13 000 91 19 07 -11.2 -16.2 28.72 34 55 130 326 001 69 65 57 -11-12-13 000 92 19 08 -11.4 -16.5 28.71 35 57 126 323 004 68 64 57 -11-12-13 000 93 19 09 -11.6 -16.9 28.72 37 58 124 321 -003 66 62 57 -12-13-13 000 94 19 10 -12.0 -17.3 28.74 37 59 126 322 -006 66 61 58 -12-13-13 000 95 19 11 -12.1 -17.5 28.74 37 58 127 324 -001 67 60 58 -12-13-13 000 96 19 12 -12.2 -17.5 28.74 37 58 127 324 -003 67 61 57 -12-13-13 000 97 19 13 -12.2 -17.5 28.74 37 59 128 325 -002 66 60 57 -12-13-13 000 98 19 14 -12.2 -17.5 28.74 37 59 130 326 003 67 61 59 -12-13-13 000 99 19 15 -12.1 -17.5 28.75 37 58 130 327 -002 66 61 59 -12-13-13 000 100 19 16 -12.0 -17.4 28.76 37 57 131 327 002 66 61 59 -12-13-13 000 101 19 17 -11.9 -17.2 28.77 36 56 131 327 000 66 61 60 -12-13-13 000 102 19 18 -11.7 -17.2 28.78 36 57 130 326 004 66 59 60 -12-13-13 000 103 19 19 -11.7 -17.2 28.78 37 57 128 325 005 65 60 59 -12-13-14 000 104 19 20 -11.4 -16.9 28.78 38 58 129 325 -004 65 59 60 -11-12-13 000 105 19 21 -11.1 -16.6 28.78 38 58 130 327 -003 65 61 63 -11-12-13 000 106 19 22 -11.1 -16.5 28.80 39 58 131 327 007 66 62 65 -11-12-13 000 107 19 23 -11.1 -16.3 28.81 39 58 131 327 007 67 63 74 -11-12-13 000 108 20 00 -11.1 -16.1 28.83 38 56 132 328 005 68 65 77 -11-12-12 000 109 20 01 -11.2 -16.0 28.85 38 55 132 328 004 69 66 81 -11-12-12 000 110 20 02 -11.2 -15.9 28.87 37 54 132 328 005 71 66 88 -11-12-12 000 111 20 03 -11.1 -15.8 28.89 36 53 131 327 000 71 65 88 -11-12-12 000 112 20 04 -11.4 -15.9 28.92 34 51 129 326 004 72 66 91 -11-12-12 000 113 20 05 -11.6 -16.1 28.95 33 50 129 325 002 72 67 92 -12-12-12 000 114 20 06 -11.8 -16.3 28.98 32 50 131 327 003 73 68 87 -12-12-12 000 115 20 07 -12.1 -16.5 29.01 31 48 130 326 001 74 71 88 -12-13-13 000 116 20 08 -12.6 -16.7 29.04 29 46 129 326 000 76 73 91 -12-13-13 000 117 20 09 -13.0 -17.0 29.07 27 44 128 325 001 77 74 86 -13-13-13 000 118 20 10 -13.4 -17.3 29.10 26 43 127 324 000 78 75 87 -13-13-13 000 119 20 11 -13.6 -17.5 29.12 25 41 126 323 -001 79 75 93 -13-13-13 000 120 20 12 -14.0 -17.3 29.14 24 39 129 326 -001 83 81 97 -14-14-14 000 * 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.