USAP Grounding Zone (ACT) site lat/lon = (-84.3380,-163.5425) cell lat/lon = (-84.3284,-163.5930) Forecast initialized at 2026-01-29/00 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 29 00 -14.7 -17.9 29.02 4 5 143 339 000 79 63 57 -14-14-13 000 1 29 01 -14.7 -17.5 29.02 3 8 147 343 000 88 65 61 -14-14-13 000 2 29 02 -14.8 -17.3 29.01 2 7 167 3 -001 90 64 65 -14-13-13 000 3 29 03 -15.1 -17.5 28.98 3 6 180 17 -001 92 64 67 -14-13-13 000 4 29 04 -15.4 -17.8 28.99 4 7 163 359 -001 92 62 67 -14-13-13 000 5 29 05 -15.6 -17.9 28.98 2 5 139 336 000 95 60 64 -13-13-12 000 6 29 06 -16.4 -17.9 28.97 2 5 154 351 000 103 60 61 -13-13-12 000 7 29 07 -17.3 -18.1 28.96 3 3 176 12 000 112 61 59 -13-13-12 000 8 29 08 -17.5 -17.9 28.96 2 3 101 298 000 116 59 58 -13-12-12 000 9 29 09 -18.4 -18.6 28.96 1 1 84 280 000 119 56 70 -13-12-12 000 10 29 10 -18.8 -19.0 28.97 2 2 83 279 -001 120 59 81 -13-12-12 000 11 29 11 -19.2 -19.9 28.93 3 3 79 276 000 120 63 81 -13-13-12 000 12 29 12 -20.3 -21.0 28.93 4 4 80 277 000 121 60 70 -13-12-12 000 13 29 13 -21.3 -21.9 28.93 3 4 95 291 000 122 62 67 -13-12-12 000 14 29 14 -21.4 -22.1 28.94 3 4 99 296 001 123 63 68 -13-12-12 000 15 29 15 -21.4 -21.7 28.94 2 3 112 309 000 123 63 70 -13-11-12 000 16 29 16 -21.5 -21.7 28.95 1 3 169 5 001 123 63 74 -13-11-12 000 17 29 17 -20.9 -21.1 28.94 2 5 137 334 000 122 63 76 -12-11-11 000 18 29 18 -20.2 -20.4 28.93 1 4 119 316 -001 121 68 72 -12-12-11 000 19 29 19 -19.4 -19.9 28.93 0 2 299 135 000 117 59 69 -12-12-11 000 20 29 20 -18.6 -19.8 28.93 1 2 203 40 000 109 73 61 -13-11-10 000 21 29 21 -17.5 -19.2 28.93 1 2 162 358 001 102 74 67 -13-11-10 000 22 29 22 -16.5 -18.4 28.93 1 4 143 339 000 99 69 81 -13-10-10 000 23 29 23 -15.7 -17.8 28.91 2 5 139 335 001 97 68 91 -12-10-10 000 24 30 00 -15.2 -17.5 28.91 4 6 102 299 002 95 68 90 -11-10-10 000 25 30 01 -15.0 -17.3 28.92 4 6 121 317 000 94 73 89 -12-10-10 000 26 30 02 -15.0 -17.2 28.93 5 8 117 313 -001 95 75 87 -11-10-10 000 27 30 03 -15.3 -17.5 28.93 7 9 109 305 003 96 73 84 -11 -9 -9 000 28 30 04 -15.8 -18.0 28.93 6 9 108 304 000 96 65 83 -11 -9 -9 000 29 30 05 -16.2 -18.3 28.93 5 9 131 327 000 97 57 84 -11 -9 -9 000 30 30 06 -16.4 -18.3 28.92 6 12 134 330 000 99 59 83 -11 -9 -9 000 31 30 07 -16.5 -18.1 28.92 8 13 123 320 002 103 58 86 -10 -9 -9 000 32 30 08 -16.9 -18.1 28.92 6 13 124 320 000 108 62 87 -10 -9 -8 000 33 30 09 -17.6 -18.4 28.93 4 11 133 330 001 114 71 78 -9 -9 -9 000 34 30 10 -17.9 -18.5 28.93 6 12 152 348 000 118 75 71 -9 -8 -8 000 35 30 11 -17.6 -18.2 28.93 6 15 146 342 001 117 77 74 -9 -8 -8 000 36 30 12 -15.8 -16.3 28.93 8 21 131 327 000 116 72 72 -9 -8 -8 000 37 30 13 -14.4 -14.7 28.93 10 25 128 324 002 114 68 71 -9 -8 -8 000 38 30 14 -12.8 -14.3 28.93 12 28 129 325 000 99 67 68 -9 -9 -9 000 39 30 15 -12.2 -14.5 28.94 13 28 121 317 000 91 62 66 -9 -9 -9 000 40 30 16 -12.2 -14.7 28.94 12 26 124 320 001 89 63 65 -10 -9 -8 000 41 30 17 -12.0 -14.8 28.94 13 26 128 325 002 86 63 65 -10-10 -9 000 42 30 18 -11.4 -14.4 28.95 14 26 130 326 000 84 62 67 -10-10 -9 000 43 30 19 -10.8 -14.0 28.95 14 27 124 320 -002 82 59 63 -10-10 -9 000 44 30 20 -10.4 -13.6 28.95 14 26 126 322 002 82 62 61 -10-10-10 000 45 30 21 -10.1 -13.4 28.96 14 26 125 322 -001 81 62 57 -10-10-10 000 46 30 22 -9.9 -13.2 28.97 14 26 124 320 000 81 62 37 -10-10 -9 000 47 30 23 -9.8 -13.0 28.97 13 25 121 317 000 81 60 27 -9-10 -9 000 48 31 00 -9.7 -12.8 28.97 12 24 122 318 001 82 62 25 -9-10 -9 000 49 31 01 -9.7 -12.7 28.97 12 24 125 322 001 82 62 25 -9-10 -9 000 50 31 02 -9.6 -12.7 28.98 12 24 125 322 000 82 61 25 -9-10 -9 000 51 31 03 -9.6 -12.6 28.99 12 23 124 320 000 83 61 25 -9 -9 -8 000 52 31 04 -9.8 -12.6 29.00 11 22 124 320 001 84 62 27 -8 -9 -8 000 53 31 05 -10.2 -13.0 29.00 10 21 128 325 001 85 63 30 -8 -9 -8 000 54 31 06 -10.7 -13.4 29.01 10 21 128 325 001 86 62 33 -8 -9 -8 000 55 31 07 -11.2 -13.8 29.01 9 22 129 326 001 87 63 35 -8 -9 -8 000 56 31 08 -11.7 -14.1 29.02 9 22 129 326 000 90 63 37 -8 -9 -8 000 57 31 09 -12.2 -14.4 29.02 8 20 124 320 000 92 61 37 -8 -8 -8 000 58 31 10 -12.7 -14.8 29.03 8 20 133 330 002 93 61 39 -8 -8 -8 000 59 31 11 -12.6 -15.0 29.04 9 21 126 323 000 90 61 40 -8 -8 -8 000 60 31 12 -12.5 -15.3 29.05 11 25 124 320 000 86 60 42 -8 -8 -8 000 61 31 13 -12.2 -15.3 29.07 11 24 126 322 -001 83 60 43 -8 -8 -8 000 62 31 14 -11.8 -15.1 29.08 12 24 123 319 000 82 61 41 -9 -9 -8 000 63 31 15 -11.8 -15.0 29.08 11 23 114 310 -002 81 49 50 -8 -7 -7 000 64 31 16 -12.1 -15.2 29.09 9 22 122 319 000 83 55 49 -9 -8 -7 000 65 31 17 -11.9 -15.0 29.10 9 24 123 319 000 83 61 47 -9 -9 -7 000 66 31 18 -11.5 -14.5 29.11 10 23 122 318 000 84 63 50 -10 -8 -7 000 67 31 19 -11.2 -14.3 29.11 11 25 106 302 -001 83 56 51 -8 -7 -7 000 68 31 20 -11.1 -14.0 29.12 9 22 115 312 000 85 58 50 -9 -7 -7 000 69 31 21 -10.7 -13.5 29.14 10 23 119 315 000 85 68 49 -9 -8 -7 000 70 31 22 -10.4 -13.1 29.15 9 20 111 307 000 86 74 51 -9 -7 -7 000 71 31 23 -10.3 -12.9 29.15 9 20 107 303 002 87 74 54 -7 -7 -7 000 72 01 00 -10.2 -12.6 29.17 8 19 118 314 000 89 81 57 -9 -8 -6 000 73 01 01 -10.6 -12.7 29.17 9 17 112 308 000 92 93 61 -10 -7 -6 000 74 01 02 -10.8 -11.6 29.17 10 20 107 303 000 105 92 64 -11 -6 -6 000 75 01 03 -9.5 -9.6 29.17 10 15 108 304 000 109 94 69 -10 -6 -5 000 76 01 04 -8.5 -8.7 29.18 10 13 113 310 000 108110 71 -9-10 -5 000 77 01 05 -8.2 -8.3 29.18 10 13 115 311 001 108111 75 -9-10 -5 000 78 01 06 -7.6 -7.8 29.19 8 13 106 303 000 107110 90 -8 -9 -5 000 79 01 07 -7.0 -7.5 29.20 8 11 107 303 000 103109 97 -8 -9 -4 000 80 01 08 -7.0 -7.2 29.20 8 12 103 299 001 106109 97 -8 -9 -5 000 81 01 09 -6.7 -7.2 29.21 7 14 102 299 000 103106 96 -8 -8 -7 000 82 01 10 -8.8 -10.1 29.22 6 11 138 335 000 97 98 97 -8 -7 -7 000 83 01 11 -9.1 -9.8 29.23 5 11 140 337 000 103 97 98 -9 -7 -6 000 84 01 12 -8.4 -8.6 29.23 5 12 124 320 001 108 96103 -9 -7 -6 000 85 01 13 -9.7 -9.9 29.23 6 8 146 342 000 110 93106 -9 -6 -6 000 86 01 14 -10.6 -11.6 29.23 7 9 147 343 000 102 92102 -7 -6 -6 000 87 01 15 -11.9 -12.8 29.23 6 10 137 333 000 105 88105 -7 -5 -6 000 88 01 16 -9.9 -11.2 29.23 8 11 148 345 000 99 84110 -6 -5 -6 000 89 01 17 -9.6 -11.0 29.23 10 12 139 335 000 98 84109 -5 -5 -6 000 90 01 18 -8.8 -10.0 29.23 9 12 127 324 -001 98 87110 -7 -5 -6 000 91 01 19 -8.4 -10.0 29.22 10 14 136 332 000 94 98108 -6 -5 -6 000 92 01 20 -8.2 -9.6 29.22 10 13 133 329 001 96100107 -6 -5 -6 000 93 01 21 -7.4 -8.6 29.22 10 12 134 330 001 97 96100 -7 -6 -6 000 94 01 22 -6.8 -8.0 29.22 9 11 139 335 000 97100110 -6 -6 -7 001 95 01 23 -6.4 -7.6 29.21 9 13 135 332 000 96105110 -6 -6 -7 002 96 02 00 -5.6 -6.6 29.20 10 14 140 337 000 96107110 -6 -7 -7 004 97 02 01 -4.7 -5.7 29.19 10 13 128 324 -002 96107111 -6 -7 -8 012 98 02 02 -4.5 -5.5 29.18 10 14 113 309 000 95106111 -5 -7 -7 019 99 02 03 -4.1 -5.1 29.17 10 14 114 310 -001 95103107 -5 -6 -7 016 100 02 04 -3.5 -4.5 29.15 12 17 119 316 -003 95102103 -4 -5 -6 024 101 02 05 -3.5 -4.4 29.15 13 18 128 324 000 95103100 -4 -5 -6 019 102 02 06 -4.3 -5.3 29.14 13 18 136 332 001 96104 98 -5 -5 -6 012 103 02 07 -5.0 -5.9 29.13 13 19 138 335 001 98101 97 -5 -5 -6 006 104 02 08 -5.5 -6.2 29.12 13 20 137 333 000 99103 98 -5 -5 -6 002 105 02 09 -5.8 -6.4 29.12 12 18 131 328 001 100103 99 -5 -6 -6 002 106 02 10 -5.4 -6.0 29.12 12 17 132 329 002 101 96 96 -5 -6 -6 002 107 02 11 -6.4 -6.7 29.12 12 17 130 326 009 104 95 92 -6 -6 -6 000 108 02 12 -6.9 -7.2 29.11 11 17 127 323 003 104 94 89 -6 -6 -6 000 109 02 13 -7.2 -7.3 29.11 10 17 130 326 -004 106102 87 -6 -7 -7 000 110 02 14 -7.6 -7.8 29.10 12 18 137 333 000 107 88 79 -6 -6 -7 000 111 02 15 -8.0 -8.2 29.09 11 18 141 337 003 108 88 69 -5 -6 -7 000 112 02 16 -8.3 -10.2 29.08 11 19 140 336 000 91 90 69 -6 -6 -7 000 113 02 17 -8.6 -11.0 29.07 12 22 140 336 000 87 90 70 -5 -5 -6 000 114 02 18 -8.6 -11.1 29.07 14 23 141 338 000 87 79 86 -5 -5 -6 000 115 02 19 -8.4 -10.9 29.07 13 23 135 332 001 85 78 81 -6 -5 -6 000 116 02 20 -8.1 -10.7 29.07 13 22 133 329 000 84 79 88 -7 -5 -6 000 117 02 21 -8.0 -10.5 29.06 12 21 130 327 000 86 78 89 -7 -5 -5 000 118 02 22 -7.8 -10.2 29.06 11 20 130 327 001 87 71 94 -7 -5 -5 000 119 02 23 -7.6 -9.8 29.06 10 18 132 329 000 88 69 80 -7 -5 -6 000 120 03 00 -7.5 -9.6 29.06 10 18 131 327 001 89 72 79 -6 -5 -5 000 * 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.