USAP Grounding Zone (ACT) site lat/lon = (-84.3380,-163.5425) cell lat/lon = (-84.3284,-163.5930) Forecast initialized at 2026-01-28/12 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 28 12 -16.5 -19.6 29.08 4 5 132 329 000 83 56 46 -13-12-12 000 1 28 13 -18.7 -20.2 29.08 5 6 140 337 -002 105 60 51 -14-12-12 000 2 28 14 -19.8 -20.8 29.08 5 7 153 350 -002 116 63 52 -14-13-12 000 3 28 15 -20.0 -20.7 29.08 5 9 149 345 000 120 65 56 -14-13-12 000 4 28 16 -20.3 -20.8 29.07 3 9 130 327 -001 121 61 56 -14-12-12 000 5 28 17 -21.1 -21.3 29.06 2 5 203 40 -001 122 59 53 -13-12-12 000 6 28 18 -20.9 -21.2 29.06 3 5 197 33 001 122 60 61 -14-13-12 000 7 28 19 -20.0 -20.5 29.05 3 5 206 43 -001 118 58 58 -14-13-13 000 8 28 20 -19.0 -20.3 29.04 2 6 182 19 000 108 59 66 -14-13-13 000 9 28 21 -18.0 -20.0 29.06 3 7 159 356 000 100 66 63 -14-14-13 000 10 28 22 -17.4 -19.6 29.05 3 6 154 350 -001 97 65 63 -15-14-13 000 11 28 23 -17.0 -19.4 29.04 5 7 171 7 -001 95 69 65 -16-14-13 000 12 29 00 -16.8 -19.4 29.02 5 7 149 345 -001 93 67 68 -16-14-14 000 13 29 01 -16.7 -19.3 29.00 4 6 140 337 -001 93 66 68 -15-14-14 000 14 29 02 -16.7 -19.2 29.00 5 7 142 338 001 94 67 67 -16-14-14 000 15 29 03 -17.0 -19.4 29.01 3 6 131 328 001 94 66 66 -15-14-14 000 16 29 04 -17.4 -19.7 29.01 4 6 169 6 000 97 67 67 -16-14-14 000 17 29 05 -18.0 -19.9 28.99 5 7 153 350 000 101 65 70 -16-14-14 000 18 29 06 -18.7 -20.3 28.98 4 6 137 334 000 106 66 70 -16-14-14 000 19 29 07 -19.5 -20.6 28.98 5 6 143 339 001 114 66 69 -15-14-14 000 20 29 08 -20.3 -21.1 28.97 4 6 152 349 001 121 67 66 -16-14-14 000 21 29 09 -21.0 -21.8 28.96 4 5 147 343 000 122 71 66 -16-14-14 000 22 29 10 -21.7 -22.5 28.96 4 6 132 329 000 122 72 66 -15-14-13 000 23 29 11 -22.7 -23.3 28.96 3 3 163 359 000 124 75 66 -15-14-14 000 24 29 12 -23.2 -23.9 28.95 3 5 167 3 -001 125 78 68 -15-14-13 000 25 29 13 -23.6 -24.0 28.95 2 6 148 345 -003 126 76 65 -15-14-12 000 26 29 14 -23.7 -24.0 28.95 2 6 126 323 -001 126 77 62 -14-14-12 000 27 29 15 -23.3 -23.6 28.94 2 6 106 302 000 125 75 62 -13-14-12 000 28 29 16 -22.9 -23.2 28.94 2 4 170 7 001 125 77 62 -13-13-12 000 29 29 17 -21.6 -22.1 28.93 2 4 143 340 000 123 78 61 -13-13-12 000 30 29 18 -21.0 -21.5 28.92 2 5 152 348 000 119 76 62 -14-12-12 000 31 29 19 -20.0 -21.4 28.93 2 5 125 321 000 109 73 71 -14-12-11 000 32 29 20 -19.1 -21.0 28.93 2 6 115 312 000 102 71 81 -13-11-11 000 33 29 21 -18.2 -20.3 28.94 5 7 107 304 000 99 72 87 -13-11-11 000 34 29 22 -17.8 -19.9 28.93 6 7 109 305 000 99 73 87 -13-12-11 000 35 29 23 -17.4 -19.5 28.93 6 8 110 307 000 99 77 84 -13-12-11 000 36 30 00 -16.9 -19.1 28.93 6 10 111 307 -001 97 83 79 -14-11-11 000 37 30 01 -16.7 -19.0 28.93 7 11 113 309 001 96 79 73 -13-11-11 000 38 30 02 -16.7 -19.0 28.93 8 12 112 308 000 95 71 75 -13-11-10 000 39 30 03 -16.7 -19.0 28.93 7 11 113 309 000 95 66 80 -13-11-10 000 40 30 04 -16.9 -19.2 28.93 6 12 117 313 001 96 70 80 -13-10-10 000 41 30 05 -17.1 -19.3 28.93 6 11 126 323 000 97 73 76 -12-10-10 000 42 30 06 -17.4 -19.3 28.93 6 12 129 326 000 101 71 75 -12-10-10 000 43 30 07 -17.7 -19.2 28.93 7 12 132 329 000 105 70 78 -12 -9-10 000 44 30 08 -17.8 -18.8 28.92 7 14 130 326 000 112 69 77 -11 -9-10 000 45 30 09 -17.7 -18.2 28.93 7 15 134 330 001 117 69 72 -11 -9 -9 000 46 30 10 -17.5 -18.1 28.93 7 16 131 328 000 117 69 65 -11 -9 -9 000 47 30 11 -17.8 -18.3 28.93 7 18 141 337 000 118 71 66 -10 -9 -9 000 48 30 12 -16.8 -17.3 28.92 8 21 127 324 -001 117 68 66 -10 -9 -9 000 49 30 13 -15.9 -16.4 28.92 9 19 123 319 000 116 62 65 -10 -8 -9 000 50 30 14 -14.9 -15.3 28.93 12 22 124 320 000 114 70 63 -11-10-10 000 51 30 15 -14.3 -15.6 28.95 13 24 130 327 000 104 70 71 -12-10 -9 000 52 30 16 -13.4 -15.6 28.95 13 26 126 322 000 93 69 68 -11-10 -9 000 53 30 17 -12.8 -15.5 28.95 14 26 127 323 000 88 68 63 -12-11 -9 000 54 30 18 -12.4 -15.3 28.95 14 26 128 324 -002 86 64 54 -11-11 -9 000 55 30 19 -12.1 -15.1 28.95 14 26 126 322 000 84 63 50 -11-11 -9 000 56 30 20 -11.7 -14.8 28.95 15 27 125 321 000 83 61 38 -11-11 -9 000 57 30 21 -11.3 -14.5 28.96 15 27 125 321 000 82 58 27 -11-11 -9 000 58 30 22 -11.0 -14.2 28.96 15 27 122 319 002 82 54 21 -11-10 -9 000 59 30 23 -10.6 -13.8 28.97 14 26 124 321 000 81 58 20 -10-10 -9 000 60 31 00 -10.4 -13.6 28.98 14 25 124 320 000 82 58 20 -10-10 -9 000 61 31 01 -10.3 -13.5 28.98 13 24 123 319 000 82 58 20 -10-10 -8 000 62 31 02 -10.2 -13.3 28.98 12 23 126 322 001 82 57 21 -10-10 -8 000 63 31 03 -9.9 -13.0 28.98 12 23 126 322 001 82 57 23 -9-10 -8 000 64 31 04 -9.7 -12.8 28.99 12 23 126 323 000 82 59 24 -9-10 -9 000 65 31 05 -9.8 -12.8 28.99 12 23 126 323 000 82 58 25 -9 -9 -8 000 66 31 06 -10.0 -13.1 29.00 12 23 126 322 000 82 59 25 -9 -9 -8 000 67 31 07 -10.3 -13.2 29.00 12 22 128 324 000 84 60 26 -9 -9 -8 000 68 31 08 -10.6 -13.5 29.02 12 22 126 322 000 84 60 27 -9 -9 -8 000 69 31 09 -11.0 -13.8 29.03 11 21 129 326 000 85 61 27 -9 -9 -8 000 70 31 10 -11.2 -14.0 29.04 12 22 126 323 000 86 59 27 -9 -9 -8 000 71 31 11 -11.4 -14.2 29.04 12 22 124 320 000 86 57 27 -9 -9 -7 000 72 31 12 -11.9 -14.6 29.06 11 23 130 326 001 87 58 26 -10 -9 -7 000 73 31 13 -11.9 -14.7 29.07 12 22 124 321 000 86 54 27 -10 -8 -7 000 74 31 14 -12.0 -14.8 29.08 12 24 129 326 001 86 59 26 -10 -9 -8 000 75 31 15 -12.0 -14.8 29.09 13 25 132 328 000 86 57 26 -11 -9 -8 000 76 31 16 -11.8 -14.7 29.10 14 25 130 327 001 85 55 28 -10 -9 -7 000 77 31 17 -11.4 -14.3 29.11 14 25 127 324 000 86 73 44 -10 -9 -7 000 78 31 18 -11.1 -13.8 29.12 15 23 128 324 -001 87107 97 -11 -8 -8 000 79 31 19 -10.9 -13.1 29.13 14 21 128 324 000 90101103 -10 -8 -8 001 80 31 20 -10.2 -12.2 29.14 14 20 126 323 000 92 96105 -9 -7 -7 001 81 31 21 -9.5 -11.3 29.16 13 19 127 323 -001 93 97102 -9 -7 -7 001 82 31 22 -8.8 -10.5 29.17 13 18 128 324 -002 94 97105 -9 -6 -7 003 83 31 23 -8.1 -9.7 29.19 13 18 131 328 -001 94 97102 -8 -6 -7 007 84 01 00 -7.7 -9.1 29.20 13 17 127 323 000 95101100 -9 -6 -6 020 85 01 01 -7.4 -8.9 29.20 13 17 130 326 000 95100 99 -8 -6 -6 020 86 01 02 -7.2 -8.6 29.20 12 17 128 324 -001 95101 99 -8 -6 -6 014 87 01 03 -7.0 -8.4 29.21 12 16 127 323 -003 95102100 -8 -6 -6 009 88 01 04 -6.8 -8.1 29.21 12 16 127 324 -002 95102103 -8 -6 -6 013 89 01 05 -6.7 -7.9 29.22 11 15 126 322 000 95101104 -7 -6 -6 015 90 01 06 -6.6 -7.9 29.23 11 15 124 321 000 96100104 -7 -6 -6 014 91 01 07 -6.8 -8.0 29.23 10 15 123 320 000 96101103 -7 -6 -6 012 92 01 08 -7.1 -8.3 29.24 9 14 126 322 000 97101103 -7 -6 -6 008 93 01 09 -7.3 -8.5 29.25 8 13 128 324 000 97102102 -6 -6 -6 005 94 01 10 -7.5 -8.6 29.25 8 14 131 328 -001 98102103 -6 -6 -6 006 95 01 11 -7.7 -8.7 29.26 9 14 131 328 002 99103103 -6 -6 -6 005 96 01 12 -7.9 -8.9 29.26 9 15 131 327 000 100103101 -6 -6 -6 004 97 01 13 -8.3 -9.1 29.26 8 15 129 325 -001 101104102 -6 -6 -6 003 98 01 14 -8.5 -9.4 29.25 9 15 129 325 000 101105100 -6 -6 -6 003 99 01 15 -8.5 -9.6 29.25 9 15 129 325 000 100105 99 -7 -6 -6 003 100 01 16 -8.8 -9.8 29.25 9 15 130 327 001 100104 99 -7 -6 -6 002 101 01 17 -8.6 -9.8 29.25 10 15 128 324 000 99105 99 -7 -6 -6 001 102 01 18 -8.2 -9.3 29.24 10 14 127 323 000 98105 99 -8 -6 -6 001 103 01 19 -7.6 -8.5 29.24 10 13 130 326 000 100107 99 -8 -6 -7 004 104 01 20 -6.9 -7.9 29.23 11 13 132 328 001 99107100 -7 -7 -7 006 105 01 21 -6.3 -7.3 29.24 11 14 131 328 000 97107 99 -7 -7 -7 004 106 01 22 -5.5 -6.6 29.23 12 15 134 330 000 96107 98 -6 -7 -8 002 107 01 23 -5.2 -6.2 29.22 13 16 138 334 -002 96101 96 -6 -6 -7 003 108 02 00 -4.8 -5.9 29.20 14 18 136 333 000 95 99 93 -6 -6 -7 003 109 02 01 -4.3 -5.3 29.19 13 18 135 331 000 95106 95 -5 -6 -7 004 110 02 02 -4.2 -5.3 29.17 15 20 137 333 000 95106 95 -5 -6 -7 005 111 02 03 -4.3 -5.3 29.16 15 21 138 334 001 95102 95 -5 -6 -7 005 112 02 04 -4.4 -5.4 29.14 16 22 136 333 000 95104 93 -5 -6 -7 004 113 02 05 -4.2 -5.3 29.13 16 21 133 329 000 95106 92 -5 -6 -7 003 114 02 06 -5.4 -6.7 29.11 16 22 138 334 000 94 98 97 -5 -6 -7 001 115 02 07 -6.6 -8.0 29.10 14 23 140 337 001 94 98 97 -5 -5 -6 000 116 02 08 -7.5 -8.7 29.09 13 23 143 340 000 98 91 95 -5 -5 -6 000 117 02 09 -8.3 -9.6 29.08 13 22 143 340 000 97 77 91 -4 -5 -6 000 118 02 10 -8.9 -10.1 29.07 12 21 142 338 001 99 78 84 -4 -5 -6 000 119 02 11 -9.4 -10.3 29.07 11 21 141 337 000 102 76 69 -4 -5 -6 000 120 02 12 -9.9 -11.3 29.06 11 21 139 335 000 98 69 66 -5 -5 -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.