USAP Grounding Zone (ACT) site lat/lon = (-84.3380,-163.5425) cell lat/lon = (-84.3284,-163.5930) Forecast initialized at 2025-09-27/12 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 27 12 -10.0 -15.1 28.92 22 26 130 327 000 65 64 57 -10-11-12 000 1 27 13 -12.3 -16.2 28.93 19 37 134 331 -003 77 61 58 -10-11-12 000 2 27 14 -12.5 -16.5 28.93 23 43 133 329 001 77 61 59 -11-11-12 000 3 27 15 -12.5 -16.8 28.95 27 46 133 330 -002 74 63 62 -11-11-13 000 4 27 16 -12.3 -16.5 28.96 25 43 131 328 001 76 67 58 -11-12-13 000 5 27 17 -13.1 -17.4 28.98 23 44 126 322 000 75 65 55 -12-13-13 000 6 27 18 -14.0 -18.4 29.01 24 41 128 325 -001 74 61 50 -13-13-14 000 7 27 19 -15.0 -19.0 29.00 21 38 127 323 000 78 61 50 -14-14-15 000 8 27 20 -15.6 -19.5 29.01 19 38 128 324 004 79 61 49 -14-14-16 000 9 27 21 -15.7 -19.7 29.03 20 37 127 324 000 79 66 49 -15-15-17 000 10 27 22 -16.4 -20.9 29.04 19 37 119 316 000 76 59 48 -15-16-17 000 11 27 23 -16.3 -20.6 29.06 21 37 120 317 000 76 59 48 -16-16-17 000 12 28 00 -16.9 -21.3 29.07 20 38 124 320 -002 76 62 53 -16-17-18 000 13 28 01 -17.2 -21.6 29.10 20 37 124 321 -002 77 63 54 -16-17-18 000 14 28 02 -17.9 -22.1 29.11 18 35 129 325 -004 79 66 57 -17-17-18 000 15 28 03 -18.5 -22.6 29.14 17 34 126 322 -002 80 66 58 -17-17-19 000 16 28 04 -19.0 -23.0 29.14 18 33 125 321 -001 81 67 58 -17-18-19 000 17 28 05 -22.0 -24.3 29.15 11 30 103 299 -003 101 71 55 -18-19-19 000 18 28 06 -28.1 -29.1 29.17 7 30 80 276 -005 127 71 54 -18-19-20 000 19 28 07 -28.9 -29.6 29.17 7 29 84 280 -006 131 69 53 -18-19-20 000 20 28 08 -28.6 -29.4 29.17 7 28 102 298 -007 130 69 51 -19-19-20 000 21 28 09 -22.9 -25.0 29.17 12 28 115 311 -005 103 67 50 -19-19-19 000 22 28 10 -22.4 -24.9 29.17 12 28 113 309 -003 98 69 51 -19-19-19 000 23 28 11 -23.3 -25.2 29.17 12 29 109 306 003 106 70 50 -19-19-19 000 24 28 12 -23.4 -25.4 29.17 11 29 104 300 000 105 69 52 -18-18-18 000 25 28 13 -23.3 -25.3 29.16 12 31 98 295 001 105 61 54 -17-17-16 000 26 28 14 -22.9 -25.2 29.15 12 34 94 291 -004 101 53 56 -16-15-15 000 27 28 15 -25.2 -25.5 29.15 5 16 131 328 -003 125 51 54 -15-15-15 000 28 28 16 -25.5 -26.9 29.13 8 26 130 326 -002 111 45 51 -14-14-14 000 29 28 17 -23.8 -26.3 29.12 6 23 137 333 000 96 28 52 -15-11-12 000 30 28 18 -23.6 -25.7 29.11 7 21 155 351 001 101 28 55 -15-10-12 000 31 28 19 -23.9 -25.0 29.10 7 19 176 12 -001 112 27 56 -14-10-11 000 32 28 20 -22.4 -24.1 29.08 8 34 171 8 000 104 28 63 -14 -9-11 000 33 28 21 -19.8 -23.0 29.06 10 42 156 352 004 86 36 89 -13-10-11 000 34 28 22 -14.7 -18.8 29.04 17 43 137 334 001 77 73 95 -11-10-12 000 35 28 23 -12.3 -15.6 29.03 23 43 136 333 005 83 87 98 -11-11-12 000 36 29 00 -10.9 -13.5 29.03 25 42 138 334 -002 88 92101 -11-10-12 004 37 29 01 -10.3 -12.7 29.02 26 42 138 334 -002 89 92 99 -10-10-11 012 38 29 02 -9.9 -12.2 29.01 26 40 140 336 -003 90 93100 -10-10-11 011 39 29 03 -9.6 -11.9 28.99 26 41 141 338 -002 89 89 94 -10-10-11 005 40 29 04 -9.5 -11.7 28.99 26 40 139 335 -002 89 88 87 -10-10-11 000 41 29 05 -9.8 -12.2 28.99 22 35 134 330 -001 88 86 82 -10-10-11 000 42 29 06 -10.7 -12.7 28.99 15 26 119 315 -005 92 89 76 -10-11-13 000 43 29 07 -13.4 -14.7 29.00 11 23 102 298 -002 102 96 70 -12-13-13 000 44 29 08 -17.2 -17.6 29.01 12 21 92 288 -001 117 84 65 -14-14-13 000 45 29 09 -19.7 -21.6 29.03 11 19 89 286 -003 102 89 63 -15-14-13 000 46 29 10 -21.0 -23.1 29.04 8 15 89 285 -004 102 95 63 -15-14-13 000 47 29 11 -21.6 -23.2 29.05 6 13 98 295 -003 110 99 63 -13-13-13 000 48 29 12 -19.3 -20.5 29.06 7 23 104 300 -003 111 97 75 -12-12-13 000 49 29 13 -13.6 -15.1 29.07 11 32 119 316 -004 101 94 88 -11-12-13 007 50 29 14 -10.6 -13.4 29.09 22 35 126 322 -005 85 90 66 -11-12-13 002 51 29 15 -10.5 -13.4 29.11 24 39 125 322 -003 84 87 57 -11-12-13 000 52 29 16 -10.6 -13.8 29.12 26 39 127 323 -004 82 82 61 -11-12-13 000 53 29 17 -11.1 -14.5 29.14 27 40 129 326 000 81 81 86 -11-12-13 000 54 29 18 -12.2 -16.1 29.15 27 41 130 326 003 78 71 76 -12-13-14 000 55 29 19 -12.2 -16.3 29.15 29 42 128 325 -003 75 71 66 -12-13-15 000 56 29 20 -12.7 -17.1 29.16 29 42 125 321 000 74 71 56 -13-14-15 000 57 29 21 -13.3 -17.6 29.17 28 42 123 320 -005 75 74 51 -14-15-16 000 58 29 22 -13.7 -18.1 29.18 28 42 122 318 -002 75 70 49 -14-15-16 000 59 29 23 -13.5 -17.7 29.20 27 41 125 321 005 76 70 49 -14-15-16 000 60 30 00 -13.2 -17.5 29.21 25 40 122 319 010 75 69 47 -13-15-16 000 61 30 01 -13.7 -17.9 29.22 24 40 123 319 006 76 65 50 -13-14-15 000 62 30 02 -13.8 -17.9 29.23 23 38 127 323 000 77 61 51 -13-14-14 000 63 30 03 -14.5 -18.2 29.23 22 38 130 326 -002 81 58 54 -13-13-14 000 64 30 04 -14.2 -18.5 29.22 24 39 133 329 001 76 55 52 -13-13-13 000 65 30 05 -13.9 -18.4 29.21 25 41 132 328 007 74 55 54 -13-13-13 000 66 30 06 -14.0 -18.3 29.21 24 41 129 325 003 76 54 55 -13-13-13 000 67 30 07 -14.0 -18.8 29.21 26 44 126 322 002 71 51 54 -13-13-13 000 68 30 08 -14.1 -19.1 29.20 27 44 123 319 003 70 53 50 -13-14-13 000 69 30 09 -14.2 -19.3 29.20 27 46 120 316 001 69 47 50 -13-13-12 000 70 30 10 -13.8 -19.2 29.20 24 44 121 318 000 67 47 46 -12-12-12 000 71 30 11 -14.1 -19.5 29.19 23 44 122 318 -002 66 45 37 -12-13-12 000 72 30 12 -13.8 -19.5 29.19 23 45 121 317 002 64 42 36 -11-12-12 000 73 30 13 -13.5 -19.3 29.17 22 47 115 311 003 63 37 37 -11-11-11 000 74 30 14 -15.0 -20.0 29.16 18 45 120 317 001 70 39 38 -11-11-11 000 75 30 15 -16.4 -20.8 29.15 16 42 126 322 -001 75 39 42 -12-11-11 000 76 30 16 -14.4 -20.0 29.13 22 47 120 317 009 65 36 40 -12-11-11 000 77 30 17 -13.3 -19.2 29.11 25 45 117 313 007 63 40 47 -12-11-10 000 78 30 18 -13.6 -18.8 29.10 22 45 123 320 004 68 40 44 -12-11-11 000 79 30 19 -12.3 -18.6 29.09 28 49 119 316 -006 60 37 42 -11-11-12 000 80 30 20 -12.4 -18.7 29.08 28 48 115 312 000 60 42 43 -11-12-12 000 81 30 21 -12.8 -18.8 29.07 26 45 118 314 000 62 45 42 -12-12-13 000 82 30 22 -13.1 -18.9 29.06 26 44 117 314 -007 63 46 41 -12-13-13 000 83 30 23 -13.3 -18.9 29.06 24 42 120 316 -002 65 47 42 -12-13-13 000 84 01 00 -12.9 -18.8 29.05 26 43 114 310 -005 62 44 42 -12-13-12 000 85 01 01 -12.6 -18.8 29.04 26 43 113 309 -009 60 42 41 -11-12-12 000 86 01 02 -12.9 -18.8 29.03 25 42 116 313 -006 62 44 41 -11-12-12 000 87 01 03 -13.2 -18.8 29.02 23 41 120 317 -005 65 47 42 -12-13-13 000 88 01 04 -13.4 -18.9 29.01 23 42 121 318 -005 65 47 41 -12-13-13 000 89 01 05 -13.3 -19.0 29.00 23 43 118 314 -002 64 45 40 -12-13-13 000 90 01 06 -13.7 -19.2 28.99 22 41 123 319 -006 66 46 42 -12-13-13 000 91 01 07 -14.2 -19.4 29.00 21 41 125 322 000 69 51 43 -13-14-14 000 92 01 08 -13.9 -19.4 28.99 22 42 122 319 -001 65 45 41 -13-13-14 000 93 01 09 -15.0 -20.2 28.99 21 39 128 325 000 69 51 48 -14-14-14 000 94 01 10 -15.7 -20.2 28.99 21 38 134 330 -002 74 58 49 -15-15-15 000 95 01 11 -15.5 -20.5 28.99 20 40 131 327 001 71 52 51 -14-14-15 000 96 01 12 -15.9 -20.9 28.99 21 38 131 327 000 71 54 51 -15-14-15 000 97 01 13 -16.1 -20.9 28.99 20 38 131 327 -001 72 55 50 -15-15-15 000 98 01 14 -16.0 -20.9 28.99 21 38 128 325 -001 72 55 51 -15-15-15 000 99 01 15 -15.7 -20.7 28.98 22 40 122 318 -002 71 55 51 -15-15-16 000 100 01 16 -15.8 -20.7 28.98 22 40 120 316 -005 71 60 50 -15-16-16 000 101 01 17 -15.8 -20.6 28.98 23 40 120 316 -004 73 63 48 -15-16-17 000 102 01 18 -15.6 -20.3 28.99 24 40 118 314 -001 73 64 55 -15-16-16 000 103 01 19 -15.9 -20.5 28.99 23 39 116 313 -003 74 64 55 -16-16-16 000 104 01 20 -16.1 -20.7 28.99 23 37 116 312 -003 75 63 55 -16-16-16 000 105 01 21 -16.2 -20.7 29.00 22 36 116 313 -002 75 63 54 -16-17-16 000 106 01 22 -16.3 -20.7 29.01 21 35 118 315 000 75 63 53 -16-17-17 000 107 01 23 -16.5 -20.9 29.01 20 34 118 314 000 76 65 58 -16-17-17 000 108 02 00 -16.8 -21.0 29.02 18 32 118 314 -003 77 65 60 -16-17-17 000 109 02 01 -16.8 -21.0 29.02 16 30 118 315 -005 78 63 61 -15-16-17 000 110 02 02 -16.6 -20.8 29.01 16 30 117 313 -005 77 61 61 -15-16-17 000 111 02 03 -16.2 -20.5 29.01 15 30 116 312 -002 77 60 61 -14-16-17 000 112 02 04 -14.7 -19.1 29.01 16 28 120 317 001 75 61 64 -14-15-17 000 113 02 05 -14.8 -18.9 29.01 15 29 122 318 -003 77 63 69 -14-15-16 000 114 02 06 -14.5 -18.7 29.01 16 30 121 317 -004 77 65 74 -14-15-16 000 115 02 07 -14.5 -18.9 29.02 17 31 121 318 -002 75 66 80 -14-15-16 000 116 02 08 -14.5 -18.8 29.02 19 33 122 318 -005 76 69 86 -14-15-16 000 117 02 09 -14.4 -18.5 29.03 19 32 115 311 -006 77 70 89 -14-15-16 000 118 02 10 -18.4 -21.3 29.05 9 29 80 276 -006 92 79 89 -16-16-17 000 119 02 11 -21.1 -23.8 29.07 7 25 91 288 000 97 75 90 -17-16-17 000 120 02 12 -21.8 -24.7 29.08 8 29 93 289 -004 95 71 88 -17-16-17 000 * 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.