USAP Grounding Zone (ACT) site lat/lon = (-84.3380,-163.5425) cell lat/lon = (-84.3284,-163.5930) Forecast initialized at 2026-01-27/12 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 -19.1 -22.7 29.11 0 0 200 37 000 83 39 37 -12-10 -9 000 1 27 13 -20.0 -21.2 29.12 0 0 191 28 000 109 43 39 -13-10 -9 000 2 27 14 -20.8 -21.0 29.13 1 2 212 49 000 121 45 39 -13-10 -9 000 3 27 15 -21.9 -22.6 29.12 3 4 186 23 000 123 47 38 -13-11-10 000 4 27 16 -21.9 -22.5 29.14 4 7 127 324 001 123 51 40 -13-11-10 000 5 27 17 -21.6 -22.3 29.13 2 2 308 144 000 123 42 43 -10 -9 -9 000 6 27 18 -22.0 -22.3 29.13 4 6 200 37 001 124 48 33 -12-10-10 000 7 27 19 -21.0 -21.6 29.13 2 9 161 357 000 118 55 30 -14-11-10 000 8 27 20 -20.3 -21.3 29.11 2 6 212 48 000 112 50 32 -12-10-10 000 9 27 21 -19.9 -21.4 29.11 3 5 205 41 000 108 50 36 -13-10-10 000 10 27 22 -18.7 -20.9 29.13 1 6 129 325 001 99 46 36 -12-10-10 000 11 27 23 -17.9 -20.3 29.11 3 5 135 331 001 96 51 38 -13-10-10 000 12 28 00 -17.6 -20.0 29.10 2 3 132 328 002 96 56 37 -12-11-10 000 13 28 01 -17.4 -19.7 29.10 1 2 168 4 002 96 49 39 -12-11-11 000 14 28 02 -17.5 -19.6 29.10 2 2 181 17 000 98 50 39 -12-11-11 000 15 28 03 -17.7 -19.8 29.11 3 3 178 14 000 99 51 40 -13-11-11 000 16 28 04 -18.0 -20.0 29.12 5 5 160 356 002 101 55 53 -14-12-12 000 17 28 05 -18.6 -20.3 29.11 5 7 160 356 000 105 58 53 -15-12-12 000 18 28 06 -19.3 -20.9 29.10 5 10 141 338 -001 107 62 51 -15-13-12 000 19 28 07 -20.0 -21.1 29.10 4 9 134 330 -001 116 67 58 -15-14-13 000 20 28 08 -20.8 -21.6 29.09 5 9 118 315 001 121 67 61 -15-14-14 000 21 28 09 -20.9 -21.7 29.09 6 9 110 307 001 121 73 61 -15-14-14 000 22 28 10 -21.6 -21.9 29.09 1 4 175 11 000 123 73 66 -15-14-14 000 23 28 11 -23.1 -23.6 29.10 5 5 193 29 -001 125 76 74 -15-14-14 000 24 28 12 -23.8 -24.4 29.08 4 9 185 21 -002 126 75 78 -15-15-14 000 25 28 13 -24.3 -24.8 29.08 3 8 178 15 -004 126 74 79 -15-15-14 000 26 28 14 -25.1 -25.3 29.08 2 8 158 354 -002 127 73 81 -15-15-14 000 27 28 15 -24.8 -25.0 29.08 2 9 176 12 000 127 77 81 -15-15-15 000 28 28 16 -23.8 -24.1 29.08 1 8 169 5 000 126 79 80 -15-15-15 000 29 28 17 -22.8 -23.1 29.06 1 6 212 48 001 124 82 77 -14-15-15 000 30 28 18 -21.9 -22.4 29.06 3 5 200 37 000 122 78 76 -15-15-15 000 31 28 19 -20.9 -22.1 29.06 2 7 174 10 000 112 83 73 -15-15-15 000 32 28 20 -20.6 -22.0 29.06 2 6 191 28 000 109 80 74 -15-15-15 000 33 28 21 -19.2 -20.9 29.05 4 7 122 318 000 105 78 73 -15-14-15 000 34 28 22 -19.2 -21.2 29.05 4 5 118 314 000 102 76 73 -16-15-15 000 35 28 23 -19.1 -21.2 29.04 6 11 106 302 000 101 77 75 -16-15-15 000 36 29 00 -19.2 -21.3 29.04 5 9 109 305 000 99 85 73 -17-15-15 000 37 29 01 -19.2 -21.4 29.03 5 8 123 319 000 99 93 73 -18-16-15 000 38 29 02 -19.3 -21.6 29.02 5 7 101 297 000 99 94 74 -17-15-14 000 39 29 03 -19.6 -21.8 29.02 5 7 106 302 001 99 94 75 -17-15-14 000 40 29 04 -19.8 -22.0 29.01 4 6 107 304 001 99 93 74 -18-16-14 000 41 29 05 -20.3 -22.5 29.01 3 8 116 313 000 101 93 71 -19-16-14 000 42 29 06 -20.9 -22.9 29.00 3 7 142 339 001 104 96 69 -19-16-14 000 43 29 07 -21.4 -23.0 28.99 3 7 148 344 -001 110 93 66 -18-15-14 000 44 29 08 -22.0 -23.2 28.97 4 7 157 353 000 116 91 66 -18-15-14 000 45 29 09 -22.5 -23.2 28.96 4 6 161 358 000 123 90 65 -18-15-13 000 46 29 10 -23.1 -23.9 28.96 4 5 161 357 000 124 90 66 -17-15-13 000 47 29 11 -24.0 -24.9 28.95 3 3 160 356 000 126 84 65 -17-14-12 000 48 29 12 -24.7 -25.3 28.94 3 3 190 26 002 127 83 64 -16-14-12 000 49 29 13 -24.1 -25.0 28.93 2 4 174 11 000 126 82 63 -16-14-12 000 50 29 14 -24.3 -24.9 28.92 2 6 175 11 000 126 81 65 -15-14-12 000 51 29 15 -24.7 -24.9 28.92 1 6 184 20 000 127 85 76 -14-14-12 000 52 29 16 -24.6 -24.8 28.92 1 5 182 19 001 127 82 74 -13-13-12 000 53 29 17 -24.1 -24.3 28.92 1 5 154 350 000 126 78 67 -13-13-12 000 54 29 18 -23.0 -23.5 28.90 1 6 142 338 000 120 75 69 -13-12-12 000 55 29 19 -22.2 -23.3 28.89 1 6 124 320 001 113 75 79 -13-12-11 000 56 29 20 -21.0 -22.7 28.89 1 7 131 327 000 106 83 86 -12-11-11 000 57 29 21 -19.4 -21.1 28.88 3 7 110 307 000 104 84 83 -12-11-10 000 58 29 22 -18.9 -20.8 28.89 7 9 104 301 000 102 87 77 -13-11-10 000 59 29 23 -18.2 -19.8 28.89 7 10 103 300 000 105 88 76 -13-11-11 000 60 30 00 -17.7 -19.8 28.89 7 11 110 307 000 100 85 76 -13-11-11 000 61 30 01 -17.3 -19.4 28.89 8 12 110 306 001 98 84 73 -14-11-11 000 62 30 02 -17.4 -19.6 28.89 8 13 107 304 000 98 82 58 -14-11-10 000 63 30 03 -17.5 -19.8 28.89 8 14 111 308 000 97 69 54 -13-10-10 000 64 30 04 -17.6 -19.8 28.89 8 12 115 311 000 97 69 53 -13-10-10 000 65 30 05 -17.7 -19.8 28.88 7 14 115 311 000 99 70 52 -12-10-10 000 66 30 06 -18.0 -19.7 28.88 7 14 113 310 000 104 68 55 -12 -9 -9 000 67 30 07 -18.2 -19.2 28.88 6 13 126 323 000 114 68 76 -12 -9 -9 000 68 30 08 -17.8 -18.3 28.88 7 17 128 325 000 118 71 72 -12 -9 -9 000 69 30 09 -17.4 -17.9 28.88 8 19 129 326 000 117 73 50 -12-10 -9 000 70 30 10 -17.4 -17.8 28.89 9 20 130 327 -001 118 64 50 -12 -9 -9 000 71 30 11 -16.7 -17.2 28.89 9 21 126 322 000 117 71 52 -11 -9 -9 000 72 30 12 -16.0 -16.4 28.89 10 22 132 328 000 116 73 48 -10-10 -9 000 73 30 13 -14.7 -15.1 28.89 12 23 129 325 000 115 75 42 -10-10 -9 000 74 30 14 -14.2 -15.2 28.89 13 24 129 326 -001 106 71 41 -11-10 -8 000 75 30 15 -13.7 -15.6 28.90 14 25 130 327 -001 96 70 39 -12-10 -9 000 76 30 16 -13.1 -15.7 28.90 15 26 133 329 000 89 72 35 -12-11 -9 000 77 30 17 -12.4 -15.3 28.90 15 27 130 327 000 86 73 29 -11-11 -9 000 78 30 18 -11.8 -14.7 28.90 16 27 129 325 000 85 72 24 -11-11 -9 000 79 30 19 -11.1 -14.2 28.90 16 27 130 326 000 83 70 23 -11-11 -9 000 80 30 20 -10.8 -13.9 28.90 16 27 130 326 000 83 68 22 -11-11 -9 000 81 30 21 -10.5 -13.6 28.91 16 27 128 325 000 83 68 22 -11-11 -9 000 82 30 22 -10.1 -13.2 28.92 15 26 127 324 000 82 68 22 -10-11 -8 000 83 30 23 -9.9 -12.9 28.92 15 26 127 323 -001 82 64 22 -10-10 -8 000 84 31 00 -9.6 -12.7 28.92 15 26 126 322 000 83 62 22 -10-10 -8 000 85 31 01 -9.6 -12.5 28.92 15 26 125 321 000 83 62 22 -10-10 -8 000 86 31 02 -9.5 -12.4 28.92 14 25 126 322 000 84 64 21 -10-10 -8 000 87 31 03 -9.4 -12.3 28.92 13 24 123 320 002 84 56 21 -9 -9 -7 000 88 31 04 -9.5 -12.3 28.93 13 24 124 320 002 84 56 21 -9 -9 -7 000 89 31 05 -9.7 -12.5 28.94 13 24 124 321 000 85 55 21 -9 -8 -7 000 90 31 06 -10.1 -12.7 28.95 12 22 125 321 001 86 57 21 -9 -8 -7 000 91 31 07 -10.8 -13.3 28.95 11 22 125 321 000 88 58 22 -9 -8 -7 000 92 31 08 -11.4 -13.5 28.96 10 20 126 323 000 91 57 21 -9 -8 -7 000 93 31 09 -12.0 -13.7 28.97 9 18 126 322 000 96 56 21 -9 -8 -7 000 94 31 10 -12.6 -14.0 28.98 9 18 127 323 000 101 57 21 -8 -8 -8 000 95 31 11 -13.1 -14.2 28.99 9 19 132 329 000 104 60 22 -8 -8 -8 000 96 31 12 -13.3 -14.3 29.00 9 19 127 324 000 105 61 22 -8 -8 -8 000 97 31 13 -13.5 -14.7 29.01 9 19 124 320 -001 103 61 22 -8 -8 -8 000 98 31 14 -13.4 -15.0 29.02 9 19 119 316 000 99 59 22 -8 -8 -7 000 99 31 15 -13.1 -15.2 29.03 9 18 122 318 001 95 63 22 -9 -8 -7 000 100 31 16 -12.7 -15.3 29.04 11 21 123 319 001 89 55 22 -9 -7 -7 000 101 31 17 -12.7 -15.3 29.05 9 16 108 305 -001 89 48 25 -7 -6 -6 000 102 31 18 -12.5 -15.1 29.06 9 17 129 326 002 89 57 26 -9 -7 -7 000 103 31 19 -12.2 -14.9 29.07 10 17 133 329 000 88 60 26 -10 -8 -7 000 104 31 20 -11.9 -14.6 29.08 10 18 119 315 -001 87 60 22 -10 -8 -7 000 105 31 21 -11.7 -14.2 29.09 10 16 105 302 002 89 51 23 -8 -7 -6 000 106 31 22 -11.4 -13.8 29.11 10 16 124 321 000 90 53 22 -9 -7 -7 000 107 31 23 -10.6 -13.2 29.12 9 17 122 318 000 87 57 22 -8 -7 -7 000 108 01 00 -10.0 -12.6 29.13 9 16 119 316 001 87 56 22 -9 -7 -6 000 109 01 01 -10.2 -12.6 29.13 9 16 111 307 000 89 49 23 -10 -6 -6 000 110 01 02 -10.6 -12.5 29.14 9 14 102 298 -001 94 36 27 -7 -5 -5 000 111 01 03 -11.0 -12.7 29.14 8 13 116 313 -008 96 46 31 -8 -6 -6 000 112 01 04 -10.7 -12.4 29.15 8 12 122 319 000 96 50 35 -9 -6 -6 000 113 01 05 -10.9 -12.6 29.15 8 13 125 322 000 95 54 37 -10 -7 -6 000 114 01 06 -11.2 -12.8 29.16 8 15 122 318 000 97 62 37 -10 -7 -7 000 115 01 07 -11.5 -12.4 29.16 8 14 124 320 000 106 81 35 -10 -7 -7 000 116 01 08 -10.9 -11.2 29.17 8 10 127 323 000 109 83 36 -10 -7 -7 000 117 01 09 -10.9 -11.1 29.18 7 10 132 328 -001 111 84 33 -11 -6 -6 000 118 01 10 -9.5 -9.7 29.18 9 12 130 326 -001 109 90 27 -10 -7 -6 000 119 01 11 -10.1 -10.3 29.19 10 12 131 327 -001 110 89 29 -11 -8 -6 000 120 01 12 -10.5 -10.7 29.19 9 15 123 319 000 110 85 31 -11 -7 -6 000 * 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.