USAP Grounding Zone (ACT) site lat/lon = (-84.3380,-163.5425) cell lat/lon = (-84.3284,-163.5930) Forecast initialized at 2025-09-29/12 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 29 12 -8.0 -12.0 29.05 22 24 133 329 000 71 70 69 -8 -9-10 000 1 29 13 -8.6 -12.6 29.06 23 37 134 331 000 74 62 67 -9-10-10 000 2 29 14 -9.1 -13.3 29.08 26 41 131 328 -001 73 64 56 -9-10-10 000 3 29 15 -9.7 -13.7 29.10 28 45 130 327 002 76 75 67 -10-11-11 000 4 29 16 -9.6 -12.8 29.10 28 41 131 327 -004 81 90 85 -10-11-10 000 5 29 17 -9.7 -12.2 29.15 28 40 124 321 -002 87 95 91 -10-11-12 000 6 29 18 -9.3 -11.5 29.21 28 38 118 314 000 90 97 95 -10-11-11 006 7 29 19 -11.0 -13.1 29.25 26 36 123 320 001 93102102 -12-13-13 029 8 29 20 -11.8 -14.7 29.21 25 36 126 323 000 86 93 94 -12-14-15 024 9 29 21 -13.0 -17.0 29.25 25 38 125 321 000 77 70 36 -13-14-15 000 10 29 22 -14.4 -18.5 29.25 23 38 126 322 001 78 53 38 -14-14-13 000 11 29 23 -15.3 -19.5 29.28 22 37 129 326 001 77 60 39 -15-15-14 000 12 30 00 -15.6 -19.5 29.26 22 37 132 328 000 80 54 40 -15-14-13 000 13 30 01 -15.7 -19.8 29.26 24 40 130 326 000 78 58 42 -15-14-13 000 14 30 02 -15.3 -19.6 29.25 24 40 127 323 000 76 58 39 -14-14-13 000 15 30 03 -15.6 -19.9 29.26 24 42 126 322 -002 76 54 41 -14-14-13 000 16 30 04 -15.6 -19.8 29.25 25 42 129 326 000 77 50 40 -14-14-13 000 17 30 05 -15.2 -19.6 29.25 25 41 127 323 002 75 47 38 -14-13-12 000 18 30 06 -15.2 -19.7 29.24 25 41 128 324 -001 74 46 34 -14-13-12 000 19 30 07 -14.7 -19.5 29.24 26 44 127 324 003 71 45 32 -13-13-12 000 20 30 08 -13.8 -19.2 29.22 27 46 126 323 000 67 48 29 -12-13-11 000 21 30 09 -13.0 -18.7 29.21 26 46 124 321 004 64 45 27 -12-12-11 000 22 30 10 -12.9 -18.7 29.20 26 46 124 321 001 63 42 30 -11-12-11 000 23 30 11 -12.8 -18.9 29.18 26 46 126 322 -004 62 40 31 -11-12-11 000 24 30 12 -13.0 -19.0 29.18 26 46 125 321 -015 61 40 29 -11-12-11 000 25 30 13 -13.3 -19.3 29.18 25 46 122 318 -012 62 41 27 -11-12-12 000 26 30 14 -13.3 -19.3 29.17 26 46 120 317 -014 62 42 28 -12-13-12 000 27 30 15 -13.3 -19.5 29.16 26 47 117 314 -019 61 40 30 -12-12-12 000 28 30 16 -14.1 -19.8 29.15 25 45 120 316 -005 65 46 29 -13-14-13 000 29 30 17 -14.4 -20.1 29.13 25 45 120 316 006 65 45 28 -13-13-13 000 30 30 18 -14.4 -20.1 29.13 26 45 120 317 -012 64 43 22 -13-13-12 000 31 30 19 -14.0 -20.0 29.12 25 45 119 316 -010 63 40 24 -12-13-12 000 32 30 20 -14.0 -19.8 29.11 24 43 122 318 -007 64 44 25 -13-13-13 000 33 30 21 -13.7 -19.6 29.09 25 46 118 314 -010 63 43 28 -12-13-13 000 34 30 22 -13.5 -19.6 29.07 25 46 117 313 -010 61 41 31 -12-12-13 000 35 30 23 -13.5 -19.5 29.07 25 44 119 315 -007 62 45 30 -12-13-13 000 36 01 00 -13.7 -19.5 29.07 26 44 120 316 -007 64 50 32 -13-14-14 000 37 01 01 -13.2 -19.4 29.05 27 44 112 309 -005 61 38 34 -12-12-11 000 38 01 02 -13.7 -19.5 29.05 26 42 118 314 -007 64 47 40 -12-13-13 000 39 01 03 -14.0 -19.3 29.05 24 41 124 320 -009 68 53 51 -13-14-14 000 40 01 04 -13.5 -18.9 29.05 24 43 118 315 000 67 50 54 -13-13-13 000 41 01 05 -12.9 -18.6 29.03 25 41 119 316 -005 64 49 53 -12-13-13 000 42 01 06 -13.5 -18.7 29.04 25 40 124 320 -003 68 53 53 -13-13-13 000 43 01 07 -13.1 -18.5 29.04 25 41 121 317 -004 66 52 49 -13-13-13 000 44 01 08 -12.9 -18.3 29.03 25 40 121 317 -006 66 53 45 -13-13-13 000 45 01 09 -13.1 -18.2 29.03 25 40 121 318 -005 68 54 39 -13-14-14 000 46 01 10 -13.5 -18.7 29.03 24 41 120 317 -003 68 55 38 -13-14-14 000 47 01 11 -13.5 -18.5 29.04 24 40 120 317 -002 70 58 38 -13-15-14 000 48 01 12 -14.1 -19.0 29.05 24 40 121 317 000 71 59 38 -14-15-15 000 49 01 13 -14.9 -19.7 29.05 23 40 121 317 -001 72 59 41 -14-15-15 000 50 01 14 -15.5 -20.2 29.05 23 40 122 318 000 73 60 46 -15-16-15 000 51 01 15 -16.0 -20.6 29.06 23 40 121 318 -001 74 58 48 -15-16-15 000 52 01 16 -15.4 -20.3 29.06 24 40 121 318 -002 71 55 48 -15-16-14 000 53 01 17 -15.6 -20.4 29.07 25 39 123 320 -001 72 54 44 -15-16-15 000 54 01 18 -15.1 -20.4 29.07 25 41 121 318 000 69 53 35 -15-16-14 000 55 01 19 -14.5 -20.1 29.07 24 41 119 316 -002 65 51 34 -14-15-14 000 56 01 20 -14.0 -19.9 29.07 26 42 120 317 000 63 51 36 -14-15-15 000 57 01 21 -14.6 -20.2 29.07 27 44 120 317 -001 65 57 39 -15-16-16 000 58 01 22 -15.2 -20.4 29.09 25 41 116 312 000 69 58 48 -15-16-15 000 59 01 23 -15.5 -20.5 29.10 24 38 119 315 000 71 63 57 -16-17-16 000 60 02 00 -16.1 -20.7 29.11 23 37 119 315 -003 74 64 55 -16-17-16 000 61 02 01 -16.2 -20.8 29.11 23 37 120 316 -001 75 62 55 -16-17-16 000 62 02 02 -15.8 -20.6 29.11 22 36 117 313 -004 73 58 54 -15-16-15 000 63 02 03 -15.7 -20.6 29.11 22 37 118 315 -004 72 55 53 -15-16-15 000 64 02 04 -15.6 -20.7 29.11 21 38 116 313 001 69 53 45 -14-15-15 000 65 02 05 -16.1 -21.1 29.11 19 36 120 316 000 71 54 49 -15-16-16 000 66 02 06 -16.1 -21.2 29.12 20 36 117 313 000 70 56 54 -15-16-16 000 67 02 07 -16.8 -21.5 29.13 18 33 120 316 001 73 59 59 -16-16-16 000 68 02 08 -17.8 -22.2 29.15 17 33 122 318 -001 77 62 60 -16-17-17 000 69 02 09 -18.4 -22.8 29.15 16 32 119 315 000 77 62 62 -16-17-17 000 70 02 10 -18.7 -23.0 29.16 16 32 123 319 000 78 64 63 -17-17-18 000 71 02 11 -19.2 -23.5 29.17 16 32 118 314 000 78 65 61 -17-17-17 000 72 02 12 -19.6 -23.8 29.18 16 31 119 316 000 79 66 62 -18-18-17 000 73 02 13 -20.3 -24.3 29.20 13 29 123 319 000 82 71 63 -18-18-18 000 74 02 14 -20.6 -24.5 29.21 13 28 119 316 002 83 73 70 -19-19-19 000 75 02 15 -22.1 -25.1 29.22 9 27 109 306 000 93 75 75 -18-19-19 000 76 02 16 -20.6 -24.0 29.23 12 29 108 305 000 88 86 64 -18-19-19 000 77 02 17 -21.1 -24.2 29.24 14 28 114 310 000 91 86 54 -19-19-19 000 78 02 18 -21.4 -24.3 29.25 13 33 123 319 002 94 87 38 -18-19-20 000 79 02 19 -19.5 -23.2 29.25 18 34 121 318 000 84 94 27 -19-20-21 000 80 02 20 -19.3 -22.7 29.26 20 35 119 316 003 87101 47 -19-20-20 000 81 02 21 -20.5 -22.8 29.28 17 33 114 311 002 99102 51 -20-20-20 000 82 02 22 -18.8 -22.4 29.28 18 35 113 309 -002 85 92 38 -18-19-20 000 83 02 23 -20.0 -22.5 29.29 18 31 103 300 -001 97 97 30 -20-20-19 000 84 03 00 -19.4 -22.7 29.30 19 32 116 313 002 88 95 41 -19-20-20 000 85 03 01 -18.7 -22.6 29.31 19 31 113 310 -002 82 89 46 -18-19-20 000 86 03 02 -18.9 -23.3 29.29 17 31 96 292 000 78 77 26 -17-18-18 000 87 03 03 -19.7 -24.8 29.28 15 30 87 284 001 72 62 28 -17-16-16 000 88 03 04 -21.5 -26.0 29.27 10 28 99 295 -001 76 48 23 -18-16-15 000 89 03 05 -23.0 -27.0 29.27 7 29 97 294 001 79 33 24 -17-15-16 000 90 03 06 -23.1 -27.4 29.26 7 25 105 302 003 77 27 26 -17-16-16 000 91 03 07 -22.9 -28.1 29.25 11 27 92 289 -002 70 27 18 -17-16-17 000 92 03 08 -24.3 -29.1 29.25 10 23 117 313 001 73 32 20 -17-17-18 000 93 03 09 -26.2 -30.4 29.24 9 24 144 341 002 79 29 19 -19-17-17 000 94 03 10 -27.5 -30.9 29.24 9 20 157 353 -003 90 33 19 -19-18-18 000 95 03 11 -28.4 -31.2 29.23 9 23 158 355 005 98 33 21 -19-19-19 000 96 03 12 -29.2 -31.6 29.20 7 10 192 29 000 103 27 23 -19-16-17 000 97 03 13 -28.5 -31.3 29.20 9 29 178 15 000 98 38 29 -20-19-19 000 98 03 14 -29.5 -31.9 29.17 9 31 171 7 -002 104 29 26 -19-17-16 000 99 03 15 -30.6 -31.9 29.15 7 12 156 352 000 122 32 27 -19-17-15 000 100 03 16 -30.5 -32.1 29.13 7 9 155 352 -002 116 29 33 -17-17-16 000 101 03 17 -31.9 -32.6 29.11 6 11 116 313 000 135 35 29 -18-18-18 000 102 03 18 -31.7 -33.2 29.10 7 9 143 340 002 122 38 27 -21-18-17 000 103 03 19 -32.2 -33.7 29.09 7 24 160 356 -002 124 33 31 -19-17-16 000 104 03 20 -32.8 -34.0 29.08 6 12 187 24 000 132 32 31 -19-18-18 000 105 03 21 -32.4 -34.0 29.08 7 9 153 349 000 123 43 31 -20-20-19 000 106 03 22 -31.9 -32.9 29.06 5 6 159 355 -002 133 45 32 -20-20-20 000 107 03 23 -30.3 -32.4 29.05 8 22 174 10 -006 112 42 35 -20-19-19 000 108 04 00 -30.2 -32.3 29.03 7 10 165 1 -005 113 28 31 -20-17-19 000 109 04 01 -31.7 -32.9 29.02 6 7 169 6 000 130 41 29 -20-19-18 000 110 04 02 -32.3 -33.5 29.02 7 10 178 15 -003 129 39 34 -21-19-18 000 111 04 03 -31.9 -33.4 29.00 8 17 181 17 001 124 36 32 -20-18-17 000 112 04 04 -32.5 -34.1 28.99 7 13 170 6 000 125 31 30 -18-17-18 000 113 04 05 -33.0 -34.4 28.98 7 14 163 359 -001 127 32 32 -20-19-19 000 114 04 06 -36.0 -37.5 28.97 5 9 151 347 000 131 34 32 -20-18-18 000 115 04 07 -35.7 -37.0 28.97 6 10 137 334 000 133 45 38 -20-20-20 000 116 04 08 -37.0 -38.8 28.97 5 17 147 343 001 125 42 34 -23-20-20 000 117 04 09 -35.3 -36.5 28.97 7 16 162 358 -001 131 43 35 -23-20-17 000 118 04 10 -35.4 -36.9 28.98 8 16 158 354 000 127 44 37 -23-20-20 000 119 04 11 -37.2 -39.0 28.98 7 17 170 6 -003 124 44 40 -22-21-19 000 120 04 12 -38.4 -40.4 28.98 7 18 159 355 004 124 45 33 -23-21-19 000 * 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.